γ-cyclodextrin and ruthenium complexe and the application in microcontact printing techniques thereof
Technical field
The invention belongs to modern electronic technology field, particularly a kind of γ-cyclodextrin and ruthenium complexe are as the application of composite green Environment-friendlyink ink in microcontact printing techniques.
Background technology
Surface micro-constructing technology embody just gradually in significant application value, particularly microcontact printing techniques, its can in small size micro-patterning, in multiple field, particularly modern electronic technology field is significant.Current alternative micro-contact printing ink is less, and also limited to the material that micro-contact printing can be carried out in surface, a large amount of materials cannot prepare picture on surface by the method for micro-contact printing.Thus develop new, stable ink to have a very big significance.
The applicant discloses eight (pungent alkoxyl group)-Phthalocyanine Zinc carries out micro-contact printing in polyethylene terephthalate, Polyethylene Naphthalate or polyimide substrate utilisation technology as ink in authorized patent (CN102516841B); Water miscible 5 are disclosed in authorized patent (CN102964909B), 10,15,20-tetra-[4-(3 '-propoxy-pyridine Bromide) phenyl] zinc porphyrin carries out the utilisation technology in micro-contact printing in polyethylene terephthalate substrate; Water miscible 5,10,15,20-tetrasulfonic acid sodium phenyl zinc porphyrins carry out micro-contact printing utilisation technology in polyimide substrate is disclosed in authorized patent (CN102964910B).
For enriching the selection of micro-contact printing ink and substrate further, and promoting micro-contact printing quality, being necessary to develop γ-cyclodextrin and the application of ruthenium complexe in microcontact printing techniques further.γ-cyclodextrin and the stable performance of ruthenium complexe composite solution, quality of forming film is high, can be applied to the micro-contact printing of surfaces of various materials as a kind of stable ink.
In order to adapt to the requirement of ink of new generation for environmental protection and HUMAN HEALTH, be necessary to develop the application of cyclodextrin in micro-contact printing further.Cyclodextrin is nontoxic, has good human compatibility.γ-cyclodextrin and the stable performance of ruthenium complexe composite solution, quality of forming film is high, can be applied to the micro-contact printing of surfaces of various materials as a kind of stable ink.Current γ-cyclodextrin and ruthenium complexe composite solution have no report as the application of micro-contact printing ink.
Summary of the invention
The invention provides a kind of γ-cyclodextrin and ruthenium complexe as the application of composite green Environment-friendlyink ink in microcontact printing techniques.
Technical scheme of the present invention is as follows:
A kind of ruthenium complexe, it is characterized in that, the structural formula of described title complex is:
The chemical name of this compound: binuclear organometallic ruthenium compound.
[(η
6-p-MeC
6h
4pr
i) Ru (μ
2-S-L)]
2(PF
6)
2, (L=phenyl aldehyde contracting-N
4-Methyl-amino thiocarbamide).
The application in microcontact printing techniques of γ-cyclodextrin and ruthenium complexe, is characterized in that, comprise the steps:
1) substrate surface process: the isopropanol water solution immersion 30-60min by polymeric substrates mass percent being 45-55%, 2-3mol/L sulphuric acid soln is placed in again after taking-up, and 15-20min is soaked under temperature is 55-65 DEG C of condition, clean with water subsequently, be carry out vacuum-drying under the condition of 60-65 DEG C in temperature, introduce carboxyl at polymer-based carbon basal surface, obtain carboxylated substrate;
2) γ-cyclodextrin and ruthenium complexe composite solution is prepared: by γ-cyclodextrin water dissolution, obtain the γ-cyclodextrin aqueous solution that concentration is 3-6g/L, 0.8g ruthenium complexe is added in often liter of γ-cyclodextrin aqueous solution, then by ultrasonic apparatus by frequency for arranging the ultrasonic 30-60min of 20kHz, obtain homodisperse γ-cyclodextrin and ruthenium complexe composite solution;
3) micro-contact printing: PDMS seal is soaked in 30-40s in γ-cyclodextrin and ruthenium complexe composite solution, in N after taking-up
2dry 30-60s in air-flow, is placed on the PDMS seal scribbling γ-cyclodextrin and ruthenium complexe composite solution in carboxylated substrate, gently presses 10-20s, PDMS seal designs is transferred to carboxylated substrate surface, obtains printing figuratum substrate;
4) electroless plating: figuratum for print substrate is soaked in 0.1-0.3g/LPdCl
210-30s in solution, is put in after taking-up in chemical plating solution and carries out electroless plating, and the time is 1-10min, obtains exquisite metallic copper pattern after taking-up in substrate.
Preferably, the application in microcontact printing techniques of described γ-cyclodextrin and ruthenium complexe, is characterized in that, step 1) in the polymeric base material selected be polyethylene.
Preferably, the application in microcontact printing techniques of described γ-cyclodextrin and ruthenium complexe, is characterized in that, step 1) in the mass percent of the aqueous isopropanol selected and polymeric substrates be 1: 1-5.
Preferably, the application in microcontact printing techniques of described γ-cyclodextrin and ruthenium complexe, it is characterized in that, step 4) in chemical plating solution can be the chemical plating solution be made up of the distilled water of 4-6wt% copper sulfate, 7-8wt% sodium-potassium tartrate, 6-10wt% sodium hydroxide, 32-36wt% formaldehyde and surplus.
Preferably, the application in microcontact printing techniques of described γ-cyclodextrin and ruthenium complexe, it is characterized in that, step 4) in chemical plating solution can be the chemical plating solution be made up of the distilled water of 5-8wt% gold perchloride, 5-8wt% gold sodium sulfide, 10-12wt% S-WAT, 15-18wt% Tripotassium Citrate and surplus.
Beneficial effect of the present invention:
1) this binuclear ruthenium, containing two ruthenium central atoms, has good antitumous effect, can give product antitumor action, and with γ-cyclodextrin compound, environmental protection, harmless nontoxic, cell survival rate is high.
2) γ-cyclodextrin has good biocompatibility, and the material obtained after micro-contact printing has the potentiality used in human body as bio-medical material.
3) γ-cyclodextrin intramolecule is a hydrophobic cavities in " V " font, is applicable to holding ruthenium complexe molecule and enters and be fixed on γ-cyclodextrin intramolecule; Utilize the coordination of gold and carboxyl to combine and form stable mixture, thus act in polymeric substrates, be connected with the carboxyl coordination in polymeric substrates, form there Thermodynamically stable, Ordered Film that energy is low on the surface of the substrate, the strong metal ion adsorbed in chemical plating solution, define exquisite pattern, use when γ-cyclodextrin and the printing of ruthenium complexe composite solution simultaneously and there will not be molecular diffusion, cause the phenomenons such as pattern distortions broadens to occur.
4) by γ-cyclodextrin and ruthenium complexe composite solution are prepared metal pattern, for micro-contact printing industry provides new approaches as micro-contact printing ink at the polymer-based carbon basal surface that electron trade is conventional.
5) γ-cyclodextrin and ruthenium complexe composite solution raw material is easy to get, cost is low, stable, industrial application has very large potentiality.
Embodiment
Following examples further illustrate of the present invention, but absolutely not limit the scope of the present invention.Elaborate the present invention further referring to embodiment, but it will be appreciated by those skilled in the art that the present invention is not limited to the preparation method of these embodiments and use.And those skilled in the art can carry out equivalent replacement, combination, improvement to the present invention according to description of the invention or modify, and these all comprise within the scope of the invention.
Embodiment 1
1) substrate surface process: be the isopropanol water solution immersion 30min of 45% by polyethylene mass percent, wherein, aqueous isopropanol and poly mass percent are 1: 1,2mol/L sulphuric acid soln is placed in again after taking-up, and 15min is soaked under temperature is 55 DEG C of conditions, subsequently with water cleaning, be carry out vacuum-drying under the condition of 60 DEG C in temperature, introduce carboxyl at polymer-based carbon basal surface, obtain at the bottom of carboxylated polyvinyl;
2) γ-cyclodextrin and ruthenium complexe composite solution is prepared: by γ-cyclodextrin water dissolution, obtain the γ-cyclodextrin aqueous solution that concentration is 3g/L, 0.8g ruthenium complexe is added in often liter of γ-cyclodextrin aqueous solution, then by ultrasonic apparatus by frequency for arranging the ultrasonic 30min of 20kHz, obtain homodisperse γ-cyclodextrin and ruthenium complexe composite solution;
3) micro-contact printing: PDMS seal is soaked in 30s in γ-cyclodextrin and ruthenium complexe composite solution, after taking-up in N2 air-flow dry 30s, the PDMS seal scribbling γ-cyclodextrin and ruthenium complexe composite solution is placed in carboxylated substrate, light pressure 10s, PDMS seal designs is transferred to carboxylated substrate surface, obtains printing figuratum substrate;
4) electroless plating: figuratum for print substrate is soaked in 0.1g/LPdCl
210s in solution, be put in after taking-up in the chemical bronze plating liquid be made up of the distilled water of 4wt% copper sulfate, 7wt% sodium-potassium tartrate, 6wt% sodium hydroxide, 32wt% formaldehyde and surplus and carry out electroless plating, time is 1min, can obtain exquisite metallic copper pattern after taking-up in substrate.
The pattern fineness drawn is careful, neatly complete, distortionless, and diffusion deformation phenomenon occurs.
Embodiment 2
1) substrate surface process: be the isopropanol water solution immersion 60min of 55% by polyethylene mass percent, wherein, aqueous isopropanol and poly mass percent are 1: 5,3mol/L sulphuric acid soln is placed in again after taking-up, and 20min is soaked under temperature is 65 DEG C of conditions, subsequently with water cleaning, be carry out vacuum-drying under the condition of 65 DEG C in temperature, introduce carboxyl at polymer-based carbon basal surface, obtain at the bottom of carboxylated polyvinyl;
2) γ-cyclodextrin and ruthenium complexe composite solution is prepared: by γ-cyclodextrin water dissolution, obtain the γ-cyclodextrin aqueous solution that concentration is 6g/L, 0.8g ruthenium complexe is added in often liter of γ-cyclodextrin aqueous solution, then by ultrasonic apparatus by frequency for arranging the ultrasonic 60min of 20kHz, obtain homodisperse γ-cyclodextrin and ruthenium complexe composite solution;
3) micro-contact printing: PDMS seal is soaked in 40s in γ-cyclodextrin and ruthenium complexe composite solution, after taking-up in N2 air-flow dry 60s, the PDMS seal scribbling γ-cyclodextrin and ruthenium complexe composite solution is placed in carboxylated substrate, light pressure 20s, PDMS seal designs is transferred to carboxylated substrate surface, obtains printing figuratum substrate;
4) electroless plating: figuratum for print substrate is soaked in 0.3g/LPdCl
230s in solution, be put in after taking-up in the chemical gold plating liquid be made up of the distilled water of 5% gold perchloride, 5% gold sodium sulfide, 10% S-WAT, 15% Tripotassium Citrate and surplus and carry out electroless plating, time is 10min, can obtain exquisite metallic gold pattern after taking-up in substrate.
The pattern fineness drawn is careful, neatly complete, distortionless, and diffusion deformation phenomenon occurs.
Embodiment 3
Human normal epidermic cell HaCaT is incubated in DMEM (DMEM) nutrient solution (containing 10% new-born calf serum), puts 37 DEG C, 5%CO
2cultivate under condition, 1 ~ 2d changes 1 nutrient solution.When Growth of Cells to logarithmic phase add respectively embodiment 1, embodiment 2 obtain metal pattern substrate and carboxylated before polyvinyl at the bottom of process.Cell 0.25% Trypsin 96 orifice plate is placed in 37 DEG C, 5%CO
2incubator is cultivated.After 2 ~ 4h, every block culture plate add respectively embodiment 1, embodiment 2 obtain metal pattern substrate and carboxylated before polyvinyl at the bottom of and complete culture solution cultured cells as experimental group and control group, containing cell and nutrient solution as blank, culture plate is moved into 37 DEG C, 5%CO
2incubator is cultivated.After 24h, abandon nutrient solution, phosphate buffered saline buffer (PBS) washes plate 2 times, adds 2-(2-methoxyl group-4-nitrophenyl)-3-(4-nitrophenyl)-5-(2,4-disulfonic acid benzene)-2H-tetrazolium monosodium salt (CCK-8) 10 μ l.Continue at 37 DEG C, 5%CO
2incubator is cultivated 2 ~ 4h, microplate reader 550nm place and is surveyed each hole optical density(OD) (D value).Cell survival rate (%)=[(experimental port D value-blank well D value)/(control wells D value-blank well D value)] × 100%.
Blank group: 100%
Control group: carboxylated before polyvinyl at the bottom of 80.8%
Experimental group: (comprising embodiment 1 and embodiment 2)
Embodiment 1:99.5%
Embodiment 2:99.3%
γ-cyclodextrin and ruthenium complexe composite solution, environmental protection, harmless nontoxic, cell survival rate is high.
Although embodiment of the present invention are open as above, but it is not restricted to listed in specification sheets and embodiment utilization, it can be applied to various applicable the field of the invention completely, for those skilled in the art, can easily realize other amendment, therefore do not deviating under the universal that claim and equivalency range limit, the present invention is not limited to specific details and illustrates here and the embodiment described.