Ordered SiO2 mesoporous assembled Cds, ZnS micro-array biochip preparing method
A biochip and microarray technology, applied in biological testing, chemical instruments and methods, measuring devices, etc., can solve problems such as photolysis, poor photostability, bleaching, etc., and achieve multi-efficiency, strong stability, and uniform distribution Effect
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Embodiment 1
[0019] Embodiment one: concrete steps are as follows:
[0020] 1. Ordered mesoporous SiO 2 Membrane preparation: the area is 12×30mm 2 The glass slide was used as the substrate, washed with water, acetone, and ethanol, rinsed with deionized water, and dried under an infrared lamp.
[0021] 2. Dissolve 0.38 mole template cetyltrimethylammonium bromide in a solvent mixed with 100ml ethanol and 30ml water under constant stirring, and prepare 1×10 -2 After stirring the F127 solution with a molar concentration for 5 hours, add 100 ml of a 0.2 molar concentration of tetraethyl orthosilicate solution and 100 ml of a 0.2 molar concentration of acetylacetone solution dropwise, and continue stirring for 3 hours; )5 days. Then, immerse the dried glass piece in the above-mentioned mixed solution, and pull it slowly at a speed of 26 cm / min. After taking it out and drying it under an infrared lamp, it will be coated with ordered SiO 2 Glass slides of mesoporous membranes were kept in a...
Embodiment 2
[0026] Embodiment two: this embodiment is basically the same as the above-mentioned embodiment, the difference is:
[0027] 1. With an area of 8×20mm 2 The silicon wafer is used as the substrate,
[0028] 2. Put 2.5×10 -2 The molar template agent P127 was dissolved in a solvent mixed with 150ml ethanol and 50ml water under constant stirring, and was prepared as 5×10 -3 After stirring the solution of molar concentration for 5 hours, add dropwise 100ml of 0.05molar concentration tetraethyl silicate solution and 100ml of 0.05molar concentration triethanolamine solution respectively, and continue to stir for 3 hours; aging (or aging) after sealing the mixed solution 5 days. Then, immerse the dried glass piece in the above-mentioned mixed solution, and pull it slowly at a speed of 36 cm / min. After taking it out and drying it under an infrared lamp, it will be coated with ordered SiO 2 The glass slide of the mesoporous membrane is stored in a desiccator;
[0029] 3. The coup...
Embodiment 3
[0032] Embodiment three: this embodiment is basically the same as the above-mentioned embodiment, the difference is:
[0033] 1. With an area of 8×20mm 2 The silicon wafer is used as the substrate,
[0034] 2. Dissolve 0.18 moles of template agent P127 in a solvent mixed with 210ml of ethanol and 70ml of water under constant stirring, and prepare 5×10 -2 After stirring the solution of molar concentration for 5 hours, add dropwise 100ml of 0.5 molar concentration tetraethyl orthosilicate solution and 100ml of 0.5 molar concentration ethylene glycol amine amine solution respectively, and continue to stir for 3 hours; aging (or aging) 7 days. Then, immerse the dried glass piece in the above-mentioned mixed solution, and pull it slowly at a speed of 20 cm / min. After taking it out and drying it under an infrared lamp, it will be coated with ordered SiO 2 The glass slide of the mesoporous membrane is stored in a desiccator;
[0035] 3. The coupling agent used is 30ml of γ-oxy...
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