WO2013120155A1 - Tooth-brushing assembly, with photocatalytic resources, composed of a brush and toothpaste - Google Patents

Tooth-brushing assembly, with photocatalytic resources, composed of a brush and toothpaste Download PDF

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Publication number
WO2013120155A1
WO2013120155A1 PCT/BR2012/000038 BR2012000038W WO2013120155A1 WO 2013120155 A1 WO2013120155 A1 WO 2013120155A1 BR 2012000038 W BR2012000038 W BR 2012000038W WO 2013120155 A1 WO2013120155 A1 WO 2013120155A1
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Prior art keywords
particles
nm
photocatalytic
emitting diodes
brush
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PCT/BR2012/000038
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French (fr)
Portuguese (pt)
Inventor
Francisco José DUARTE VIEIRA
Original Assignee
Duarte Vieira Francisco Jose
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Priority to PCT/BR2012/000038 priority Critical patent/WO2013120155A1/en
Publication of WO2013120155A1 publication Critical patent/WO2013120155A1/en

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Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00Radiation therapy
    • A61N5/06Radiation therapy using light
    • A61N5/0613Apparatus adapted for a specific treatment
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B11/00Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
    • A46B11/001Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs
    • A46B11/0017Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs with pre-pressurised reservoirs, e.g. aerosols
    • AHUMAN NECESSITIES
    • A46BRUSHWARE
    • A46BBRUSHES
    • A46B15/00Other brushes; Brushes with additional arrangements
    • A46B15/0002Arrangements for enhancing monitoring or controlling the brushing process
    • A46B15/0016Arrangements for enhancing monitoring or controlling the brushing process with enhancing means
    • A46B15/0036Arrangements for enhancing monitoring or controlling the brushing process with enhancing means with a lighting means, e.g. laser, bulb
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61CDENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C19/00Dental auxiliary appliances
    • A61C19/06Implements for therapeutic treatment
    • A61C19/063Medicament applicators for teeth or gums, e.g. treatment with fluorides
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00Radiation therapy
    • A61N5/06Radiation therapy using light
    • A61N5/0601Apparatus for use inside the body
    • A61N5/0603Apparatus for use inside the body for treatment of body cavities
    • A61N2005/0606Mouth
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61NELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N5/00Radiation therapy
    • A61N5/06Radiation therapy using light
    • A61N2005/0635Radiation therapy using light characterised by the body area to be irradiated
    • A61N2005/0643Applicators, probes irradiating specific body areas in close proximity
    • A61N2005/0644Handheld applicators

Abstract

A toothpaste in the form of a gel, foam, spray or any other form of presentation, containing nanoscale and/or nanostructured particles, such as open or closed nanotubes, lamellar or tubular crystalline structures, with single or double walls, which are rolled up on themselves or spatial, closed and of large surface area, such as fullerenes; B - a toothpaste in the form of a gel, foam, spray or any other form of presentation, containing fluorescent substances in any colours, in isolation or in mixtures, in any proportions, of various hereof, which are capable of fluorescing when excited by frequencies within the light spectrum between 400 nm and 800 nm wavelength, the weight of such substances varying in accordance with the molecular weight and the efficiency in fluorescing and following the "quantum satis para" industrial addition specification. A glove, body or toothbrush handle including, at the end thereof that receives the replaceable bristle supports, laser- and/or LED-emitting diodes. A glove, body or toothbrush handle that has, within, a Lenz and Faraday generator unit. A glove, body or toothbrush handle, the production materials of which have added fluorescent substances and nanoscale particles. Bristles with nanoparticles that include nanoscale particles that generate heterogeneous photocatalysis and fluorescent substances.

Description

"BRUSHING TOOTH SET WITH FEATURES photocatalytic, COMPOSITE AND BRUSH toothpaste."

Fields of this patent:

• Oral hygiene selectors with no microbicidal substances resistant strains;

• Oral hygiene microbicide generated excited nanosized particles visible light coming from LEDs or laser;

• Brushes teeth of generating enough electricity to heterogeneous photocatalysis by Lenz and Faraday generators driven by movements back and forth;

• toothbrushes and bristle carriers replaceable built in plastic with added nanoscale particles;

• Folders dentifrice with additions of nano-sized particles and fluorescent substances.

State of the Art.

The teeth are the first human organs to die, even while living the other organs.

Will be the most fragile of human organs teeth?

If we consider the lack of teeth, especially the front, in hominid skulls of 5,000,000 years, unearthed by paleontologists, the toothless mouths of European nobles of the eighteenth century and much of the current world population, the answer is yes.

But if we consider the exposure of teeth, from birth, the most violent chemical, thermal, mechanical and bacterial aggressions, our perspective can change radically and the answer will be: - no, the teeth are the most resistant organs of the human body.

In fact, except for injuries that break the teeth, just a little hygienic care are able to maintain full human dentition and functional for all our lives.

However, until about 100 years ago, tooth loss could be considered as the most democratic of human woes: - equally rich and poor reached, educated and illiterate, the proletarians and potentates.

Except in the case of a rare genetic, with which certain individuals can maintain beautiful and strong dentition, with minimal care, throughout a long life, humanity learned that teeth need hygienic care.

Soon after the First World War, the Americans began the conquest of markets for their brushes and toothpastes with educational advertising and images of divas and heartthrobs of cinema with his dazzling smiles, that is, in addition to information on how to hygiene, the desire for beauty snatched consumers.

Thus, based on health and beauty, she graduated from the higher value of personal image in the contemporary world: - a well-kept teeth.

Dentistry from the last half of the last century, made numerous achievements towards dentition refund lost while governments had great activity towards hygiene for prevention of dental diseases.

The teeth and support the huge mechanical effort required to chew hard food such as meat, seeds and certain fruits; support also large variations in temperature and pH of foods, but are fragile before the bacterial activity that consumes them by a process called tooth decay and gum disease.

Humans are born with a temporary dentition begins to fall from 5 years, a process which lasts until about age 10, when it is replaced by permanent teeth, which, except for devices, once lost, not reconstitutes .

With the current achievements of biology related to "stem cells", it is possible that in a decade we can regain the third natural dentition through odontoblasts; however, there is already a century we have defined behavior: - "teeth, to have them forever, take care of them every day."

In the same way that in the last century, medicine and the pharmaceutical industry doubled human life expectancy, pharmaceutical and industrial products for dental hygiene are still being researched and designed to provide the effective market products sufficient dental care to maintain dentition for life.

Criticism of the State of the Art.

Nevertheless microbicides effects of nano-sized particles, revealed by research in laboratories around the world, the State of the Art does not record the use of these oral hygiene, except for the composite nano-sized particles of titanium nitride (TiN) partially oxidized on their surfaces so that each core particle is a titanium nitride (TiN) that was not oxidized, covered on its surface oxidized titanium dioxide.

Short initial reference on nanometric particles and heterogeneous photocatalysis, as sources of microbicides ions.

During the last twenty years in research laboratories around the world, scientists plunged in the polls in a new and surprising field: - Nanotechnology.

One of the earliest and most promising Nanotechnology discoveries was that nanoparticles Ti0 2 irradiated by ultraviolet light demonstrating the phenomenon of heterogeneous photocatalysis, acting as a catalyst establishing from the decomposition of the water molecule, Oxidrila radical which is strongly oxidising of organic material and, particularly, not being an enzyme phenomenon exerts a strong antimicrobial, without selecting resistant strains.

Shortly after the initial discovery scientists have identified new nanometric particles and initiated the creation of others, which continues to date, so there are currently hundreds of them.

Figure 3 is a graph showing the radiant energy of sunlight, depending on each wavelength and shows catalytic activity difference of the particles of titanium dioxide doped under visible light, compared with a nanometric particle of the same material, however undoped and only expresses this phenomenon under ultraviolet light which is harmful to human tissue.

Advances to State of the Art brought by the "SET BRUSHING TOOTH WITH FEATURES photocatalytic, COMPOSITE BRUSH AND dentifrice", object of this patent.

The "SET BRUSHING TOOTH WITH FEATURES photocatalytic, COMPOSITE BRUSH AND dentifrice" object of this patent, is a state of advancement of technology and innovations, which can be combined in various ways, are as follows:

A - A toothpaste in the form of gels, spray, or any other form of presentation, including nanometer and or nanostructured particles such as open or closed nanotúbulos, lamellar or tubular crystalline structures with single or double walls, wound on itself own or space, closed and large surfaces, such as fullerenes, and especially C60 fullerene that has microbicidal and antiviral activity, can these particles or may not be doped, and occur in pure form or mixtures of doped particles and or undoped, preferably titanium dioxide nanoparticles doped with about 0.5% by weight iron, or mixed in any suitable proportions of several of them - with the exception only of titanium nitride particles whose surfaces were oxidized Titanium dioxide - for produce, economic and practical, heterogeneous photocatalysis for microbicides effective against effects saw rus, fungi, bacteria and protozoa to be affected by electromagnetic radiation emitted by shaped lights laser emitted by diode or laser emitting diodes and or present led to cables toothbrushes within the range between 400 nm 800 nm wavelength, and the weight of nanoscale particles added varies according to the nature and efficiency of these being from 1 to 100 micrograms per gram of toothpaste;

B - A toothpaste in the form of gels, spray, or any other presentation form containing fluorescent substances of any color, either alone or in mixtures, in any proportions, of several of these, capable of generating fluorescence when excited by understood frequencies within the light spectrum between 400 nm to 800 nm wavelength, and the weight of such substances varies according to the molecular weight and the efficiency of generating fluorescence and follows the industry-standard addition "quantum satis to";

C - A toothpaste containing at the same time, nanoparticles, and fluorescent substances such as are described in the "A" items, and "B" above;

D - a handle, body or toothbrush cable - hereinafter in this patent report simply as cable - having at its end into which fit the replaceable bristle bases laser emitting diodes and LEDs or in unitary occurrence or multiple in any number and can operate alone or combined, capable of generating any color lights within the light spectrum between 400 nm and 800 nm, in any proportions of the powers of such lights as a function of the varying potencies of these lighting devices, fountains those placed in such positions that illuminate the inside of the mouth of the areas being brushed with the focus of most of the light power available for generating said heterogeneous photocatalysis; E - One handle, body or toothbrush handle, as in "D" above also containing, in its interior, a generator set Lenz's and Faraday, formed by a magnet that may move within a coil which extends for a suitable portion of the cable, which are connected appropriately in parallel, batteries, or capacitors, and through a switch button laser emitting diodes and lEDs or so, such being stirred cable in its longitudinal direction by times above 10 seconds generates and stores the electrical power required to generate light by the laser-emitting diodes or lEDs and enough and cause the heterogeneous photocatalysis cited during the time of an act of brushing teeth;

F - A handle, body or toothbrush cable containing command buttons and wiring electrical circuits suitable for connecting or disconnecting the supply of electricity to generate lighting thereof, properly insulated as detailed in due course;

G - a handle, body or toothbrush cable whose manufacturing material are aggregated fluorescent substances and nanometric particles, activated frequencies of light between 400 nm and 800 nm, coming from the laser emitting diodes present in the proper location the handle of the toothbrush produce, respectively fluorescence photo-catalysis and heterogeneous microbicidal;

H - typical bristle toothbrushes, mounted on replaceable media adaptable to cables of the toothbrush, with the innovation consists of the addition of these bristles and its replaceable holders, fluorescent substances and nanometric particles which produce, when illuminated by light frequencies between 400 nm and 800 nm, respectively, fluorescence and heterogeneous photocatalysis;

I - One handle, body or toothbrush handle comprising, on its front, conformations such as to allow the engagement and disengagement of replaceable supports bristles simply by introducing a piece inside the other, the matching between these two parts .

0 preferential use of titanium dioxide nanoparticles doped with about 0.5% by weight of iron is due to the fact that if swallowed by the user are harmless to the human body and, in the presence of gastric juice, become titanium tetrachloride - which does not have photocatalytic activity - and those discharged to the sewers are transformed into sulfides and sulfites in combination with such anions resulting from the biodegradation of the constituents alkyl sulfates detergents, soaps, shampoos, tooth pastes, which do not harm the biota of the sewers.

Following is the operation of "SET BRUSHING TOOTH WITH photocatalytic RESOURCES, COMPOSITE AND BRUSH toothpaste": -

1 - in the case of use of toothpaste containing at the same time, the fluorescent substances and nanometric particles: - the light emitted by the laser emitting diodes and or LEDs contained in the cables of toothbrushes, properly focused by lenses be described in due course, focus intently on such particles causing at the same time, the excitation of nano particles and light emission by the fluorescent substances inside the mass foaming of the toothpaste, and such substances generate light the dimension distances intermolecular homes between them and the surfaces of the teeth and gums, causing heterogeneous photocatalysis microbicide exactly in the place where it is needed.

The function of the fluorescent substances in toothpastes, object of this patent is to overcome the opaque barrier formed by the thousands of gas bubbles that form the foams of toothpastes, preventing the entry of light from the surface of the foam, causing the heterogeneous photocatalysis is always performed within the toothpaste film which is covering the teeth and gums;

2 - in the case of the use of toothpastes containing only fluorescent substances: - the light coming from the laser generators diodes and or gifts LED cables of toothbrushes, properly focused by lenses, focuses intently on these causing the fluorescence light emission and excitation of nanometric particles present in the material in which the cables of the toothbrushes are made, supports the replaceable bristles and the bristles themselves, producing heterogeneous photocatalysis microbicide in the required location;

3 - for the case of paste dentifrice containing only fotocalíticas nanometric particles: - the light beams coming from the laser emitting diodes contained in the cables of toothbrushes, properly focused by lens focus intently on nanoscale particles present in the toothpaste in handles of toothbrushes, the replaceable bristle holders and the bristles themselves, producing the heterogeneous photocatalysis microbicide exactly at the required location;

4 - In any of the above situations, the presence of fluorescent and nanoscale substances in the brush cables, the replaceable supports the bristles and the bristles themselves act as photocatalysis heterogeneous generating and aids the maintenance of these parts of the "brushing SET DENTAL with features photocatalytic, COMPOSITE AND BRUSH dentifrice "free growth of microorganism colonies.

5 - The frequencies emitted by the laser emitting diodes and or present led to cables of toothbrushes are chosen so that they are compatible to the maximum output capacity of exciting both the fluorescent substance as the generating nanoparticles photocatalysis heterogeneous, present in the toothpaste in tooth brushes cables, brackets replaceable bristles and the bristles themselves.

Before we proceed to the description and illustrations of the preferred form of construction of the object of this patent, we present the following basic information on the scientific foundations of functioning, as the nanoparticles and the heterogeneous photocatalysis.

1 - nanoparticles, nano-particles and nanostructured particles.

Initially will be set forth in this patent report the meanings of terms and explanation of the concepts that make up the major advance in the state of technology that it proposes.

Since Feynman at the annual meeting of the American Physical Society, 1959, in CALTECH launched their bases in his famous lecture "There is more space down there," Nanotechnology has become an extremely important branch of Solid Physics, braving unknown area and whose findings immediately provoked other questions: - physics of particles of nanometer dimensions.

In 1972, Fujishima and Honda, discovered the photocatalytic effect in irradiated titanium dioxide electrode with UV and thus was born a new branch of Physical Chemistry of enormous theoretical interests.

The research and the theoretical elaborations of Nanotechnology mobilize thousands of researchers; since Fujishima and Honda, publications have in growing such that in 2010 were published about 2,500 significant items, the vast majority of the titanium dioxide nanoparticles.

However, regardless of whether they consist in an area of ​​great interest among scientists, as can be judged from the number of publications, nanotechnology is still something inaccessible to the laity.

As the field of Nanotechnology every day reveals more interesting surprises and work on the titanium dioxide particles are the most numerous - for being dirt cheap, there are numerous commercial suppliers of the same in conditions of strict reliability standards, be an advanced state of technique on his manipulations in laboratories and are, above all, absolutely non-toxic to humans - it is natural that these serve as parameters for researchers to advance from the results of research colleagues and their practical applications, based on available studies begin be made.

Simultaneously, Nanotechnology branch has been dedicated to the creation and study of nanostructured particles as nanotúbulos, open or closed, lamellar and tubular structures, single or double walls, wound onto themselves or space, closed and large surfaces, such as fullerenes and especially the C60 fullerene, active microbicidal and antiviral.

However, the terms "nanoparticles", "nanostructured particles" or "nanosized particles" have been used interchangeably to denote structures having main dimensions between 10 and 100 nm comprising an indescribable amount of chemical compositions and crystal structures of pure substances or doped different hetero atoms.

Thus the meaning of the terms "nano-particles", "nanoparticles" or "nanostructured particles" for all purposes of this patent, unless otherwise stated, always refers to any species of these particles, pure or doped, on natural occurrence or various kinds and mixed in any proportions.

Similarly, we specify that the core concept of this patent object is the production of heterogeneous photocatalysis nanoparticles by excitation thereof by understood electromagnetic radiation of wavelengths around 400 nm and near infrared having wavelengths at around 800nm, and the improvement over the prior art innovative application of the production of the electromagnetic spectrum generated by the laser generating diode and or lEDs, combined or not with fluorescent light production in the surrounding liquid medium such nanoscale particles, to achieve economic and practice of heterogeneous photocatalysis for microbicides, effective effects against viruses, fungi, bacteria and protozoa, as a microbicide feature not picker strains.

Unlike antibiotics, whose action is biochemical, enzymatic, the lethal effect of heterogeneous photocatalysis is photochemical and its mechanism of action is the destruction of cell membranes, cell walls and virus capsids, by the action of the ion oxidrila (OH "), which is generated when nano-sized particles to be excited by near infrared, visible, white or any color, or near ultraviolet manifest electrical potential high, causing hydrolysis and, therefore, do not select resistant strains, which is the most evil of side effects of antibiotics.

In the case of C60 fullerene nanoparticles and other lethal mechanism is structured fixing of such particles on the surfaces or within pores of the membranes or viral capsules, so that renders impossible the metabolism of these microorganisms.

2 - heterogeneous photocatalysis.

When, in 1972, Honda and Fujishima discovered division photo-electrochemical water molecule (H 2 0) in the electrode Ti0 2 under UV irradiation, there was the beginning of the era of heterogeneous photocatalysis using the Ti0 2. Due to its high oxidizing power and reducing (E ° = 2.8 V; eGAP = 3.2 eV) T1O2 the nanometer is one of the most efficient photo-catalysts used in environmental cleanup processes (for the degradation of organic pollutants and compounds aromatics), in the conversion and storage of solar energy and also in medicine for inactivation of bacteria, fungi, viruses and protozoa.

The ΤΊ0 2 formed into nanoparticles - dimensions between 10 nm and 100 nm - is the subject of numerous works of researchers in the areas of nano science and nanotechnology.

When the particle is divided into smaller the ratio area / volume and the actual surface area increases; in the practice of manufacturing nanoparticles, the surfaces of the nanoparticles are extremely irregular and surface per area is even higher and as photochemical reactions occur on the surface of the crystalline ΤΊΟ2 structure negligible quantities, such as a few micrograms of the product, lead to great results. The conformation of nanoparticles increases the energy gap (eGAP) of the Ti0 2, making it more active and more efficient photo, because this is a surface function.

Nano-particles of Ti0 2 are now easily found on the market at low prices - $ 85.00 per 100 grams - and are employed, the object of this Patent, even in lower concentrations than "1 mcg / g", that is, paltry costs.

The nanoparticle P-25, the 'Degussa Corporation, "with a mean size of 50 nm is one of the most used and has a large number of experiments described in the literature.

0 ΤΊΟ2 exists in nature in three crystalline forms: anatase, rutile and brookite, rutile being the most abundant form, although anatase is the shape that has the highest potential of all photoactive crystalline phases of Ti0 2.

However, its technological implementation is hindered due to high band gap energy (3.2 eV eGAP), which causes the photo-reactivity of the Ti0 2 can only be obtained with electromagnetic radiation in the UV range of the light spectrum to the wavelength of 390 nm.

Ultraviolet radiation is classified into three categories, depending on the wavelength:

1 - UV-A, between 320 nm and 400 nm, 2 - UV-B, between 280 nm and 320 nm,

3 - UV-C, between 200 and 280 nm.

The UV-B and UV-C as a function of their high energy content of radiation, have carcinogenic effects and can not be fitadas.

For this reason you should avoid exposing the skin to ultraviolet light and prevent it reaches the mucous membranes and the retina, even in minimal doses.

Larger photocatalytic activity of Ti0 2> as well as other nanoscale particles mentioned here, for a spectral range of longer wavelengths than the UV has been solved by various methods of "doping" which modify the crystal structure of such particles, among which we will mention only:

1 - the Ti0 2 doped with transition metals;

2 - Reaction of Ti0 2 with non - metals (eg, N), TiN from the result;

3 - coupling two semiconductors (e.g. CdS and Ti0 2);

Among these methods, the doping of the Ti0 2 particles with metallic cations (Ti0 2 "F +) has been set further described methods of achieving easier and lower prices.

The addition of transition metal to the crystalline structure of Ti0 2 permits to extend the electromagnetic absorption for the visible light region and the near infrared (having wavelengths near 800 nm) thereby maintaining its photocatalytic efficiency while that avoid the risks of ultraviolet light.

The photocatalytic reactivity (ΤΊ0 2 '+ M) depends on several factors, including the doping method, the dopant concentration of the ion, the heat treatment (calcination of the sample) and the electronic configuration of the dopant in the anatase crystalline structure.

According Xiaobo Chen (2005), increasing the photocatalytic activity of nanoparticles through doping methods with transition metal already-proven to numerous particles of which we shall mention only those made from the following metals: Fe (III) , Mo (V), Ru (III), Re (V), V (IV) and Rh (III) 0.5% by weight. In the years following publication of the pioneering work of Xiaobo Chen in 2005, the fundamental principles of the crystal changes in titanium dioxide nanoparticles and their effects on the generation of heterogeneous photocatalysis were much better known and the list of dopants and other nanoscale particles doped grown enormously.

In particular, the Ti0 2 doped with Fe (III) 0.5% by weight has been the principal method of making photo-effectively obtain heterogeneous catalysis without the use of ultraviolet light, i.e., within the spectrum visible and near infrared radiation of light.

The graph of Figure 3 shows the "Electromagnetic Energy - 10 ~ 3 W / m 2 - sunlight as a function of wavelength in nm"; this graph allows the comparison of the features of the photocatalytic performance of Ti0 pure 2 and Ti0 2 doped when both are exposed to sunlight, and such yield applies also to any other nanometric particles, doped by any form, become photocatalytic when illuminated by visible spectrum.

The graph marked by segment AB region indicates the region of ultraviolet light between 200 and 400 nm and the area indicated by the segment CD, the region of visible light.

We can see that only about 5% of the total potential energy of the electromagnetic spectrum of sunlight are used for photo-catalysis by pure Ti0 2 while over 45% are used when employing Ti0 2 doped.

This fact allows the photo-catalytic heterogeneous, being achieved by electromagnetic irradiation in the light range visible and near infrared, about nanoparticles Ti0 2 doped, or other, can be made by the light emission between violet and infrared, for all components of this spectral range, mixed in various proportions, or by irradiation of white light.

The above photocatalytic mentioned effects can also be obtained by hundreds of other generating substances of heterogeneous photo-catalysis, such as Zr0 2, Sn0 2, doped or not, and / or any other which, activated by light violet, blue, white, or other colors, alone or combined with each other in any proportions, producing photo-catalysis heterogeneous.

Matsunaga et al (1985) demonstrated that surfaces containing titanium dioxide irradiated by ultraviolet light, kill bacteria such as Lactobacillus acidophilus, Escherichia coli, and yeasts such as Saccharomyces cerevisiae. These researchers have also shown that such photo-destructive action is associated with reduced intracellular levels of coenzyme A by photooxidation and progressive increase in cell membrane permeability destroying effect "barrier" of this, which involves the free flow of intracellular content and the death of the microorganism.

Research carried out by the University Campina Grande / Paraíba on the treatment of water for human consumption, they showed that the photosensitive heterogeneous catalysis by sunlight or ultraviolet light irradiated on compounds containing titanium dioxide nanoparticles 100% leads to death of microorganisms such as Staphylococcus aureus, Escherichia coli, Salmonella sp. The effects of the immediately above mentioned researches, carried out with sunlight or ultraviolet light, can also be obtained by irradiation with light in the visible range of the light spectrum when doped nanosized particles are used.

Description and illustrations of devices that make up the "SET BRUSHING TOOTH WITH FEATURES photocatalytic, COMPOSITE AND BRUSH toothpaste."

Figure 1 is a schematic view, in horizontal section, without obeying the actual proportions of the component parts of the preferred embodiment of the toothbrush handle (1) which makes up the "Toothbrushing ASSEMBLY WITH RESOURCES photocatalytic consisting of BRUSH AND dentifrice ", object of this patent; We see therein the watertight cable (2), whose interior is hermetically sealed to prevent water contact with the electro-electronic devices contained within it, which are properly placed, and this limited space by the insulator (3); this Figure one can see, also, that the rod (8) made of non-magnetic material, with the springs (6) at both its ends, the cylindrical magnet (7) of high magnetic power, which can freely move through the bar (8 ) in both directions, and, upon reaching the springs (6) reverses its movement, and both these parts are placed inside the induction coil (6A) coming to be a Lenz and Faraday generator that generates electricity when the alternating-tight cable (2) is moved towards "back and forth" horizontal; the generated electrical power is collected from both ends of the induction coil (6A) by cables (10) is rectified in full and stored wave capacitors and batteries that compose the rectifier system and memory (9) and to be pressed the button (11) switch of the type normally open, isolated and protected by the flexible film (12) this energy is provided by the cable (13) and will trigger the laser emitting diodes and lEDs or (14), placed inside the end (5) of the toothbrush (1), which is part of the same that enters the user's mouth during brushing of the teeth, whose shape allows there are made the slots of the bristle holders with nanoparticles being shown in Figure 2. Still in Figure 1 we see a hole (16) through which the light rays generated by the emitting diodes and laser or LED (14) reach the user's mouth interior to the generation of heterogeneous photocatalysis, and the hole (1 6) is totally occupied by the semicylindrical lens (15) made of transparent plastic, which hermetically seals the hole (16), preventing the laser emitting diodes and or LEDs (14) are affected by water makes also with the thin laser beams emitted from laser emitting diodes and lEDs or (14) turn into a light beam horizontally in orthogonal direction relative to the length of the watertight cable (2) of the toothbrush (1) or is, in the sense of opening the mouth, to reach all teeth.

Figure 1 also shows the coupling means of the end (5) of the toothbrush (1) with its watertight cable (2) is done by pressure, by forced fitting groove (4A) with the sealing ring (4) .

Figure 2 is a front view schematic of replaceable supports (17) of the bristles with nanoparticles (18) in which is seen the bristles with nanoparticles (18), the light passage window (19) generated by the generating diode and laser or LED (14), focused by the lens semicylindrical (15) which seals the hole (16) and tabs fitting (20) which, in any case, usually by matching, overlapping and light pressure fit in end (5) of the toothbrush (1); this feature allows the object of this patent use replaceable supports (17) of bristles with nanoparticles (18) disposable and replaceable by new sets, with savings for users.

All materials, usually polymers, which are made parts of the toothbrush (1) which come into contact with hands or mouths of users, such as watertight cable (2) and the interchangeable supports (17) of the bristles with nanoparticles (18), containing nanoscale particles, generating heterogeneous photocatalysis and fluorescent substances.

Operation "BRUSHING TOOTH SET WITH FEATURES photocatalytic, COMPOSITE BRUSH AND dentifrice", object of this patent.

As described above, the operation of the object of this patent advances the State of the Art products aimed for oral hygiene - especially the tooth surfaces of the interstices interdental and their alveolar regions - the generation of photocatalysis heterogeneous microbicide by excited nanometer particles by presence of light beams exactly these locations, and the effect of illumination on such particles can be led to the same surface by the aid of the simultaneous generation of light, fluorescence from the fluorescent substance added to toothpastes.

Thus, the laser generating diode and or LEDs (14) arranged on the end (5) of the handle of the toothbrush (1) emit lights when the watertight cable (2) of the toothbrush (1) previously stirred for about 10 seconds to load capacitors and batteries that make up the system and store the rectifier (9), which power charging continues for the typical brushing motion; the light generated by the laser emitting diodes and LEDs or (14) crossing the hole (16), and are converted into a horizontal beam by the lens semicylindrical (15) which passes through the laser passage window (19) and reaches the inside the mouth, in which the foams are toothpaste, which produce the microbicidal effects of excitation of nanometric particles in the following order of decreasing efficiency:

1 - Maximum efficiency: - when the toothpastes contain both fluorescent substances as nano-sized particles;

2 - average efficiency: - when toothpastes contain only or fluorescent substances or nanoscale particles not both together;

3 - lower efficiency: - when toothpastes contain neither nanoscale particles or fluorescent substances, heterogeneous photocatalysis being generated only by the nano-particles contained in interchangeable supports (17) of the bristles with nanoparticles (18) and the watertight cable (2), by light beams that reaches them.

Claims

1. "brushing TOOTH ASSEMBLY WITH RESOURCES photocatalytic, BRUSH AND COMPOSITE dentifrice", intended for oral hygiene, especially the tooth surfaces, interdental their interstices and their alveolar regions - the generation of heterogeneous photocatalysis microbicide excited by nanoscale particles the presence of light beams, characterized by being composed of a toothpaste in the form of gels, spray, or any other form of presentation, including nanometer and or nanostructured particles such as open or closed nanotúbulos, lamellar crystalline structures or tubular of single or double walls, wound onto themselves or space, closed and large surfaces can these particles or may not be doped, and occur in pure form or mixtures of doped particles and or preferably not doped titanium dioxide nanoparticles doped about 0.5% by weight d and Iron, or mixed in any suitable proportions of several of them.
2. BRUSHING TOOTH SET WITH photocatalytic RESOURCES, COMPOSITE AND BRUSH toothpaste, "according to claim 1, characterized in that the electromagnetic radiation emitted by laser shaped lights emitted by the LED or laser-emitting diodes and LEDs or gifts in handles of toothbrushes, are included within the spectrum between 400 nm 800 nm wavelength, and the weight of the added nano-sized particles varies according to the nature and efficiency of these being from 1 to 100 micrograms per gram of toothpaste .
3. "brushing TOOTH ASSEMBLY WITH RESOURCES photocatalytic, BRUSH AND COMPOSITE dentifrice", characterized by being composed of a toothpaste in the form of gels, spray, or any other form of presentation, characterized by containing fluorescent substances any color, either alone or in mixtures, in any proportions, of several of these, capable of generating fluorescence when excited by understood frequencies within the spectrum between 400 nm 800 nm wavelength, and the weight of such substances varies with the molecular weight and the efficiency of generating fluorescence.
4. "brushing TOOTH ASSEMBLY WITH RESOURCES photocatalytic, BRUSH AND COMPOSITE dentifrice", according to claims 1 to 3, wherein the cable contains at its end, which fit in the replaceable bristle bases laser emitting diodes and lEDs or in single or multiple occurrence of any number and can operate alone or combined, capable of generating any color lights within the light spectrum between 400 nm and 800 nm.
5. "brushing TOOTH ASSEMBLY WITH RESOURCES photocatalytic, BRUSH AND COMPOSITE dentifrice", according to claim 4, characterized by the cable having fluorescent substances and aggregated nano particles, activated by frequency light between 400 nm and 800 nm coming from the laser emitting diodes present in the appropriate location on the toothbrush handle, produce, respectively fluorescence photo-catalysis and heterogeneous microbicide.
6. "brushing TOOTH ASSEMBLY WITH RESOURCES photocatalytic, BRUSH AND COMPOSITE dentifrice", according to claim 4, wherein the cable also contain in its interior, a generator set of Faraday and Lenz, comprising a magnet that can move within a coil which extends for a suitable portion of the cable, which are connected appropriately in parallel, batteries, or capacitors, and through a switch button laser emitting diodes and lEDs or so that , such being stirred cable in its longitudinal direction over time for 10 seconds generates and stores the electrical power necessary to generate the light emitting diodes and laser or LED.
7. Toothbrushing ASSEMBLY WITH RESOURCES photocatalytic, BRUSH AND COMPOSITE dentifrice ", according to claims 1 and 3, characterized by the bristles and their supports are additivated with fluorescent substances and produce nano particles when illuminated by light frequencies between 400 nm and 800 nm, respectively, fluorescence and heterogeneous photocatalysis.
8. Toothbrushing ASSEMBLY WITH RESOURCES photocatalytic, BRUSH AND COMPOSITE dentifrice ", according to claims 1 and 3, characterized by the preferred embodiment is basically composed of a tight cable (2), whose interior is hermetically sealed in containing sue within consumer electronics devices, limited by the insulator (3), a Lenz and Faraday generator consists of a bar (8), made of non-magnetic material, with the springs (6) at both its ends, cylindrical magnet (7) , high magnetic power, which can freely move through the bar (8) in both directions, and, upon reaching the springs (6) reverses its movement, and both these parts are placed inside the induction coil (6A) We are harvested electrical power generated at both ends of the induction coil (6A) by cables (10), which is rectified rectified in full wave and stored in batteries and capacitors that comprise the rectifier system and stored R (9) and, when pressing the button switch (1 1) of the type normally open, isolated and protected by the flexible film (12) this energy is provided by the cable (13) and will trigger laser emitting diodes and or lEDs (14) placed inside the end (5) of the toothbrush (1); and further hole (16) through which the light radiation generated by the laser emitting diodes and LEDs or (14) reach the user's mouth interior to the generation of heterogeneous photocatalysis, wherein the hole (16) is fully occupied by the semicylindrical lens (15) made of transparent plastic, which hermetically seals the hole (16), preventing the laser emitting diodes and or lEDs (14) are affected by water makes also with the thin beams laser emitted by the laser emitting diodes and lEDs or (14) turn into a light beam horizontally in orthogonal direction relative to the length of the watertight cable (2) of the toothbrush (1) as well as replaceable media ( 17) of the bristles with nanoparticles (18) containing nanometric particles, heterogeneous photocatalysis generating and fluorescent substances.
PCT/BR2012/000038 2012-02-13 2012-02-13 Tooth-brushing assembly, with photocatalytic resources, composed of a brush and toothpaste WO2013120155A1 (en)

Priority Applications (1)

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PCT/BR2012/000038 WO2013120155A1 (en) 2012-02-13 2012-02-13 Tooth-brushing assembly, with photocatalytic resources, composed of a brush and toothpaste

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PCT/BR2012/000038 WO2013120155A1 (en) 2012-02-13 2012-02-13 Tooth-brushing assembly, with photocatalytic resources, composed of a brush and toothpaste

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040091834A1 (en) * 1997-06-20 2004-05-13 Rizoiu Ioana M. Electromagnetic radiation emitting toothbrush and dentifrice system
WO2006125204A2 (en) * 2005-05-18 2006-11-23 Biolase Technology, Inc. Electromagnetic radiation emitting toothbrush and dentifrice system
US20070111167A1 (en) * 2004-02-11 2007-05-17 Colgate-Palmolive Company Light-based toothbrush
WO2008019868A2 (en) * 2006-08-17 2008-02-21 Bruno Pregenzer Toothpaste and use of said type of toothpaste
US20100167228A1 (en) * 1997-06-20 2010-07-01 Rizoiu Ioana M Electromagnetic radiation emitting toothbrush and dentifrice system
GB2471281A (en) * 2009-06-23 2010-12-29 Andrew Paul Farley Whitening toothbrush with laser

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20040091834A1 (en) * 1997-06-20 2004-05-13 Rizoiu Ioana M. Electromagnetic radiation emitting toothbrush and dentifrice system
US20100167228A1 (en) * 1997-06-20 2010-07-01 Rizoiu Ioana M Electromagnetic radiation emitting toothbrush and dentifrice system
US20070111167A1 (en) * 2004-02-11 2007-05-17 Colgate-Palmolive Company Light-based toothbrush
WO2006125204A2 (en) * 2005-05-18 2006-11-23 Biolase Technology, Inc. Electromagnetic radiation emitting toothbrush and dentifrice system
WO2008019868A2 (en) * 2006-08-17 2008-02-21 Bruno Pregenzer Toothpaste and use of said type of toothpaste
GB2471281A (en) * 2009-06-23 2010-12-29 Andrew Paul Farley Whitening toothbrush with laser

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