EP1346203A1 - Dispositif de renforcement de fluorescence large bande a faibles pertes et capteur optique biologique ou chimique l'utilisant. - Google Patents
Dispositif de renforcement de fluorescence large bande a faibles pertes et capteur optique biologique ou chimique l'utilisant.Info
- Publication number
- EP1346203A1 EP1346203A1 EP01270761A EP01270761A EP1346203A1 EP 1346203 A1 EP1346203 A1 EP 1346203A1 EP 01270761 A EP01270761 A EP 01270761A EP 01270761 A EP01270761 A EP 01270761A EP 1346203 A1 EP1346203 A1 EP 1346203A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- fluorescence
- chemical
- biological
- stack
- thin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/6428—Measuring fluorescence of fluorescent products of reactions or of fluorochrome labelled reactive substances, e.g. measuring quenching effects, using measuring "optrodes"
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/62—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light
- G01N21/63—Systems in which the material investigated is excited whereby it emits light or causes a change in wavelength of the incident light optically excited
- G01N21/64—Fluorescence; Phosphorescence
- G01N21/645—Specially adapted constructive features of fluorimeters
- G01N21/6456—Spatial resolved fluorescence measurements; Imaging
- G01N21/6458—Fluorescence microscopy
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S435/00—Chemistry: molecular biology and microbiology
- Y10S435/808—Optical sensing apparatus
Definitions
- the invention relates to a low-loss broadband fluorescence enhancement device. It also relates to a biological or chemical optical sensor using such a fluorescence enhancement device.
- This evanescent wave creates an overcurrent which makes it possible to excite the fluorophore in such a way that it emits a significant amount of light.
- the objective of the invention is to strengthen the fluorescence by conventional waves (propagating), which allows a reading of the fluorescence signal by commercial instruments. It is also a question of widening the possibilities of enhancement of fluorescence by using a component operating on a broad spectral band. Finally, the aim is to limit non-radiative losses due to imperfections in the materials used.
- a first object of the invention consists of a fluorescence enhancement device comprising a support supporting fluorescence enhancement means, the fluorescence enhancement means providing a receiving face for chemical or biological elements intended to be read by detection of '' a fluorescence signal emitted by a fluorophore, associated with chemical or biological elements, under the effect of an excitation light beam, characterized in that the fluorescence enhancement means consist of a thin dielectric layer transparent or a stack of thin transparent dielectric layers providing a mirror function for the fluorescence signal and for the excitation light beam, the material of the thin layer or of each thin layer of the stack being chosen from the following materials: Ti0 2 , Ta 2 0 5 , Hf0 2 , Zr0 2 , MgO, Si0 2 , Si 3 N 4 , MgF 2 and YF 3 .
- the thickness e of the thin layer or the thickness of each thin layer of the stack can be calculated from the following formula:
- the fluorescence enhancement means are means deposited on a structured face of the support.
- said receiving face can be a face offering hydroxyl functions or a face offering aldehyde functions.
- a second object of the invention consists of a biological or chemical optical sensor constituted by the device described above, said receiving face supporting chemical or biological elements marked with a fluorophore.
- FIG. 1 is a cross-sectional view of an optical sensor according to the present invention
- FIG. 2 is a cross-sectional view of a fluorescence enhancement device according to the present invention.
- Figure 1 is a cross-sectional view of an optical, biological or chemical sensor according to the present invention. It represents a substrate 1 supporting fluorescence enhancement means 2 which in turn support chemical or biological substances marked with a fluorophore. These substances are represented in the form of a layer 3. In this figure is shown a focusing lens 4 and a reading beam 5 to symbolize the reading and excitation system by epifluorescence microscopy.
- the fluorescence enhancement means 2 can consist of a stack of thin dielectric layers. These thin layers can be made from the following materials: Ti0 2 , Ta 2 0 5 , Hf0 2 , Zr0 2 , MgO, Si0 2 , Si 3 N 4 , MgF 2 and YF 3 . These materials can be deposited by PVD type techniques (electron gun, sputtering), by CVD type techniques or by sol-gel deposition. These fluorescence enhancement means in the form of thin layers can be deposited on the entire substrate or on a structured substrate. In the latter case, they can be located by conventional techniques • Lithography, "lift off” or mechanical masking. In all cases, the stoichiometry of the materials must be perfectly controlled. Particular care is taken at the last layer to avoid the creation of non-radiative losses.
- the last thin layer must have biological compatibility with the probes to be grafted onto this layer.
- Silica or silicon nitride have this quality of biological compatibility.
- N being the refractive index of the material considered at the excitation wavelength
- k being an odd integer
- ⁇ the excitation wavelength
- e the optical thickness of the layer considered.
- optical thickness is understood to mean the product of the refractive index with the mechanical thickness of the thin layer for the wavelength considered.
- FIG. 2 shows, in cross section, such a device.
- the fluorescence enhancement means 11 have been deposited in the form of five layers referenced 12 to 16. This device is provided for an excitation wavelength of the fluorophore CY3 of approximately 550 nm
- the layers 12, 14 and 16 are made of Si0 2 , of refractive index 1.46 for the excitation wavelength considered.
- Layers 13 and 15 are in
- the bandwidth available for excitation is + or - 100 nm around the centering wavelength of
- a microscope optimized for CY3 can be used. It is fitted with an optical filter for selecting the excitation light at 546 nm for a spectral width of approximately 10 nm.
- the Si0 2 layers can be deposited by a CVD type process at 800 ° C.
- the Si 3 N 4 layers can be deposited by a CVD type process at 730 ° C.
- the fluorescence enhancement means may comprise only a single layer, for example a layer of Si0 2 with a mechanical thickness of 500 nm.
- a first example concerns the grafting of oligonucleotides in situ.
- the free face of the fluorescence enhancement means is treated chemically to obtain hydroxyl functions on the surface.
- the functionalized device is then introduced into an automatic oligonucleotide synthesizer (Expedite 8909, PE Biosystems) which makes it possible to grow base by base an oligonucleotide of 20 mothers of sequence 3 'TTT TTA TCT CAC CCA AAT Ag5'.
- a second example concerns the grafting of presynthesized oligonucleotides.
- the free face of the fluorescence enhancement means is treated chemically to obtain in this case an aldehyde function.
- the device is rinsed in a solution of SDS (sodium dodecyl sulfate) and then in water. Since the imine bond is not very stable, a step of reducing the double bond is planned in the presence of Na 2 BH 4 for 10 minutes. The device is rinsed again with SDS and then with water. It is then dried under a stream of nitrogen.
- the hybridization step consists in bringing together, the device comprising the probes and a solution consisting of a buffer and targets of sequence complementary to the probes comprising a fluorophore CY3 in position 5 '.
- the hybridization conditions allowing the pairing of the probes and the targets are the following: hybridization solution: 300 ⁇ l of targets at 0.2 ⁇ M + 900 ⁇ l of H-7140 / Sigma hybridization buffer,
- TEOS tetraethoxysilane
- the stack of thin optical dielectric layers makes it possible to verify several points.
- this stack which can be likened to a "one-dimensional photonic crystal" has band gap properties which give it a wide spectral field of excitation.
- the excitation wavelength can be chosen over the entire bandwidth of the mirror dielectric (typically> 100 nm). This also allows the simultaneous use of several fluorophores compatible with this spectral band. This is not the case for the devices of the prior art.
- the above property also has the consequence of introducing flexibility in the choice of the incidence of the excitation light. This is not the case for the devices of the prior art.
- the excitation of the fluorophores of the biosensor is carried out with a non-dedicated system.
- the invention is compatible with commercial devices.
- the invention makes it possible to block the excitation light in the stack and to limit the parasitic fluorescence coming from the substrate.
- the invention also makes it possible not to use thin metallic layers in the stack.
- the presence of these materials causes the appearance of non-radiative losses which limit the effectiveness of the fluorescence enhancement.
- the invention provides stacks of high optical quality in terms of absorption losses.
Landscapes
- Health & Medical Sciences (AREA)
- Immunology (AREA)
- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Optics & Photonics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Life Sciences & Earth Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Pathology (AREA)
- Investigating, Analyzing Materials By Fluorescence Or Luminescence (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0016317 | 2000-12-14 | ||
| FR0016317A FR2818378B1 (fr) | 2000-12-14 | 2000-12-14 | Dispositif de renforcement de fluorescence large bande a faibles pertes et capteur optique biologique ou chimique l'utilisant |
| PCT/FR2001/003960 WO2002048691A1 (fr) | 2000-12-14 | 2001-12-12 | Dispositif de renforcement de fluorescence large bande a faibles pertes et capteur optique biologique ou chimique l'utilisant. |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| EP1346203A1 true EP1346203A1 (fr) | 2003-09-24 |
Family
ID=8857658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP01270761A Withdrawn EP1346203A1 (fr) | 2000-12-14 | 2001-12-12 | Dispositif de renforcement de fluorescence large bande a faibles pertes et capteur optique biologique ou chimique l'utilisant. |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US7718422B2 (fr) |
| EP (1) | EP1346203A1 (fr) |
| JP (1) | JP4249481B2 (fr) |
| FR (1) | FR2818378B1 (fr) |
| WO (1) | WO2002048691A1 (fr) |
Families Citing this family (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2848670B1 (fr) * | 2002-12-17 | 2005-06-10 | Commissariat Energie Atomique | Micro-composant etalon pour le calibrage ou l'etalonnage d'equipements de mesure de fluorescence et biopuce le comportant |
| FR2849195B1 (fr) * | 2002-12-20 | 2005-01-21 | Commissariat Energie Atomique | Biocapteur a substrat quelconque pouvant etre caracterise en deflexion photothermique |
| FR2854696A1 (fr) * | 2003-05-06 | 2004-11-12 | Commissariat Energie Atomique | Support de biopuce utilisant des couches minces de materiau sol gel et procede de realisation |
| TWI329208B (en) | 2003-06-03 | 2010-08-21 | Oerlikon Trading Ag | Optical substrate for enhanced detectability of fluorescence |
| US7285789B2 (en) * | 2003-06-06 | 2007-10-23 | Oc Oerlikon Balzers Ag | Optical device for surface-generated fluorescence |
| DE102004013388A1 (de) * | 2004-03-17 | 2005-10-13 | Schott Ag | Anordnung zur Fluoreszensverstärkung |
| KR100634505B1 (ko) * | 2004-06-16 | 2006-10-16 | 삼성전자주식회사 | 패턴화된 박막층을 갖는 마이크로어레이 기판 및마이크로어레이, 상기 마이크로어레이 기판 및마이크로어레이를 제조하는 방법 |
| WO2006116362A2 (fr) | 2005-04-25 | 2006-11-02 | The Trustees Of Boston University | Substrats structures pour le profilage optique de surface |
| FR2893415A1 (fr) * | 2005-11-15 | 2007-05-18 | Commissariat Energie Atomique | Biopuce a rapport signal fluorescent/signal parasite ameliore |
| DE102006051482A1 (de) * | 2006-07-31 | 2008-02-14 | Nikolaus Bartels | Anordnung zum Erfassen von Substanzen, Herstellung der Anordnung und ihre Verwendung |
| US7704751B2 (en) * | 2006-09-18 | 2010-04-27 | 3M Innovative Properties Company | Polymeric fluorescent chemical sensor |
| US7988918B2 (en) | 2007-11-01 | 2011-08-02 | Complete Genomics, Inc. | Structures for enhanced detection of fluorescence |
| US9551026B2 (en) | 2007-12-03 | 2017-01-24 | Complete Genomincs, Inc. | Method for nucleic acid detection using voltage enhancement |
| US8545761B2 (en) * | 2010-03-25 | 2013-10-01 | Raytheon Company | Chemical and biological sensor |
| US10837879B2 (en) | 2011-11-02 | 2020-11-17 | Complete Genomics, Inc. | Treatment for stabilizing nucleic acid arrays |
| WO2015179098A1 (fr) | 2014-05-21 | 2015-11-26 | Integenx Inc. | Cartouche fluidique comprenant un mécanisme de soupape |
| CN107106983B (zh) | 2014-10-22 | 2021-04-16 | 尹特根埃克斯有限公司 | 用于样品制备、处理和分析的系统和方法 |
| WO2017136676A1 (fr) | 2016-02-05 | 2017-08-10 | Nanoview Diagnostics Inc. | Détection d'exosomes ayant des marqueurs de surface |
| WO2019232321A1 (fr) | 2018-06-01 | 2019-12-05 | NanoView Biosciences, Inc. | Compositions, systèmes et procédés de détection améliorée sans marqueur et à base de fluorescence de nanoparticules |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3979184A (en) * | 1975-05-27 | 1976-09-07 | General Electric Company | Diagnostic device for visually detecting presence of biological particles |
| DE2946234A1 (de) * | 1979-11-16 | 1981-05-27 | Theodor Prof. Dr. 4400 Münster Eckert | Verfahren zur erhoehung der empfindlichkeit der fluoreszens- und/oder absorptionsmessung von substanzen nach duennschichtchromatographischer trennung |
| US6060237A (en) | 1985-02-26 | 2000-05-09 | Biostar, Inc. | Devices and methods for optical detection of nucleic acid hybridization |
| US5468606A (en) | 1989-09-18 | 1995-11-21 | Biostar, Inc. | Devices for detection of an analyte based upon light interference |
| US5482830A (en) | 1986-02-25 | 1996-01-09 | Biostar, Inc. | Devices and methods for detection of an analyte based upon light interference |
| CA1317206C (fr) * | 1986-09-22 | 1993-05-04 | Takeyuki Kawaguchi | Methode pour la detection d'un composant d'un systeme biologique, et dispositif et trousse de detection utilises a cette fin |
| US5478755A (en) * | 1988-07-25 | 1995-12-26 | Ares Serono Research & Development Ltd. | Long range surface plasma resonance immunoassay |
| SE462454B (sv) * | 1988-11-10 | 1990-06-25 | Pharmacia Ab | Maetyta foer anvaendning i biosensorer |
| US5639671A (en) | 1989-09-18 | 1997-06-17 | Biostar, Inc. | Methods for optimizing of an optical assay device |
| US5541057A (en) | 1989-09-18 | 1996-07-30 | Biostar, Inc. | Methods for detection of an analyte |
| US5550063A (en) | 1991-02-11 | 1996-08-27 | Biostar, Inc. | Methods for production of an optical assay device |
| US5955377A (en) | 1991-02-11 | 1999-09-21 | Biostar, Inc. | Methods and kits for the amplification of thin film based assays |
| US5418136A (en) | 1991-10-01 | 1995-05-23 | Biostar, Inc. | Devices for detection of an analyte based upon light interference |
| WO1994003774A1 (fr) | 1992-07-31 | 1994-02-17 | Biostar, Inc. | Dispositifs et procedes pour la detection d'un analyte, bases sur l'interference de la lumiere |
| US5552272A (en) * | 1993-06-10 | 1996-09-03 | Biostar, Inc. | Detection of an analyte by fluorescence using a thin film optical device |
| FR2813121A1 (fr) | 2000-08-21 | 2002-02-22 | Claude Weisbuch | Dispositif perfectionne de support d'elements chromophores |
-
2000
- 2000-12-14 FR FR0016317A patent/FR2818378B1/fr not_active Expired - Fee Related
-
2001
- 2001-12-12 WO PCT/FR2001/003960 patent/WO2002048691A1/fr not_active Ceased
- 2001-12-12 JP JP2002549949A patent/JP4249481B2/ja not_active Expired - Fee Related
- 2001-12-12 US US10/450,100 patent/US7718422B2/en not_active Expired - Fee Related
- 2001-12-12 EP EP01270761A patent/EP1346203A1/fr not_active Withdrawn
Non-Patent Citations (1)
| Title |
|---|
| See references of WO0248691A1 * |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2004534936A (ja) | 2004-11-18 |
| WO2002048691A1 (fr) | 2002-06-20 |
| FR2818378A1 (fr) | 2002-06-21 |
| US20040092028A1 (en) | 2004-05-13 |
| JP4249481B2 (ja) | 2009-04-02 |
| US7718422B2 (en) | 2010-05-18 |
| FR2818378B1 (fr) | 2003-06-13 |
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Legal Events
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| PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
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| 17P | Request for examination filed |
Effective date: 20030520 |
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| AK | Designated contracting states |
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| RIN1 | Information on inventor provided before grant (corrected) |
Inventor name: GETIN, STEPHANE Inventor name: BARRITAULT, PIERRE Inventor name: VINET, FRANEOISE Inventor name: CHATON, PATRICK |
|
| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: COMMISSARIAT A L'ENERGIE ATOMIQUE |
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| 17Q | First examination report despatched |
Effective date: 20080409 |
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| RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: COMMISSARIAT A L'ENERGIE ATOMIQUE ET AUX ENERGIES |
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| STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN |
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| 18D | Application deemed to be withdrawn |
Effective date: 20150701 |