A light-driven oxygen-generating corneal contact lens and its preparation method and application

A corneal contact lens, light-driven technology, applied in optics, optical components, glasses/goggles, etc., can solve the problem of high restrictions on the use of ophthalmic lenses, achieve excellent regulation performance, improve biocompatibility, and improve wearing comfort. Effect

Active Publication Date: 2021-06-25
JINLING INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent (CN106104365B) discloses "an ophthalmic lens with an oxygen-generating element in it", and the patent also proposes "actively generating oxygen", which is similar to the "oxygen production" of the present invention, but the principle of generating oxygen is the well-known electrolysis of aquatic products. Oxygen, as stated in the patent, the ophthalmic lens essentially needs to be "connected to power supply and control elements" to drive the ophthalmic lens, and the use of the ophthalmic lens is extremely limited

Method used

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  • A light-driven oxygen-generating corneal contact lens and its preparation method and application
  • A light-driven oxygen-generating corneal contact lens and its preparation method and application
  • A light-driven oxygen-generating corneal contact lens and its preparation method and application

Examples

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Effect test

Embodiment 1

[0050] (1) p-type semiconductor (copper bismuthate, CuBi 2 o 4 ), n-type semiconductor (bismuth vanadate, BiVO 4 ), passivation layer (magnesium oxide, MgO) target preparation:

[0051] The p-type semiconductor, n-type semiconductor, and passivation layer powder are used as raw materials, and ethanol is used as the medium. After the raw materials are wet ball milled for 12 hours, they are dried at 80°C and sintered by hot pressing to form a dense circular target.

[0052] (2) Preparation of central interlayer slurry:

[0053] The raw material of graphene slurry is ultrasonically dispersed in ethanol solvent according to the concentration of 1.0wt%.

[0054] (3) Preparation of flexible heterojunction electrodes:

[0055] The graphene center interlayer slurry was spin-coated on the surface of the polished silicon wafer, and dried at 100°C; the copper bismuthate, bismuth vanadate and magnesium oxide targets were respectively installed on the target position of the magnetron s...

Embodiment 2

[0064] (1) p-type semiconductor (copper bismuthate, CuBi 2 o 4 ; Cuprous oxide, Cu 2 O), n-type semiconductor (bismuth vanadate, BiVO 4 ;Titanium dioxide, TiO 2), passivation layer (aluminum oxide, Al 2 o 3 ) target preparation:

[0065] The p-type semiconductor, n-type semiconductor, and passivation layer powder are used as raw materials, and ethanol is used as the medium. After the raw materials are wet ball milled for 12 hours, they are dried at 80°C and sintered by hot pressing to form a dense circular target.

[0066] (2) Preparation of central interlayer slurry:

[0067] The graphene puree is ultrasonically dispersed in ethanol solvent according to the concentration of 2.0wt%.

[0068] (3) Preparation of flexible heterojunction electrodes:

[0069] The graphene center interlayer slurry is spin-coated on the surface of the polished silicon wafer, and dried at 100°C; the targets of copper bismuthate, cuprous oxide, bismuth vanadate, titanium dioxide and alumina are...

Embodiment 3

[0078] (1) p-type semiconductor (zinc oxide, ZnO), n-type semiconductor (bismuth vanadate), passivation layer (aluminum oxide, Al 2 o 3 ) target preparation:

[0079] The p-type semiconductor, n-type semiconductor, and passivation layer powder are used as raw materials, and ethanol is used as the medium. After the raw materials are wet ball milled for 12 hours, they are dried at 80°C and sintered by hot pressing to form a dense circular target.

[0080] (2) Preparation of central interlayer slurry:

[0081] The carbon nanotube slurry was ultrasonically dispersed in an ethanol solvent at a concentration of 2.0 wt%.

[0082] (3) Preparation of flexible heterojunction electrodes:

[0083] The carbon nanocenter interlayer slurry was spin-coated on the surface of the polished silicon wafer, and dried at 100°C; the zinc oxide, bismuth vanadate and aluminum oxide targets were respectively installed on the target position of the magnetron sputtering instrument; the spin-coated carb...

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Abstract

The invention discloses a light-driven oxygen-generating corneal contact lens, a preparation method and application thereof, and belongs to the technical field of corneal contact lenses. It consists of a flexible heterojunction photocatalytic electrode and a silicon-based hydrogel matrix. First, the p-type and n-type semiconductors are sputtered onto both sides of the flexible central interlayer by magnetron sputtering to prepare a flexible heterojunction photocatalytic electrode, which is then coated with a passivation layer and encapsulated into a silicon-based hydrogel. In the matrix, after processing and molding, a light-driven oxygen-generating corneal contact lens is obtained. The invention changes the oxygen supply mode of the traditional corneal contact lens with oxygen carried by water or oxygen permeation through a channel, and becomes an oxygen supply mode of self-made oxygen, and improves the wearing comfort and durability of the corneal contact lens. Light-driven oxygen-generating contact lenses can absorb harmful light (ultraviolet light) or strong light (blue light, laser) to protect the eyes; the generated highly reactive oxygen and hydrogen are effective against ophthalmic diseases (keratitis, conjunctiva) caused by bacteria and viruses. inflammation and glaucoma) has preventive and therapeutic effects.

Description

technical field [0001] The invention relates to a light-driven oxygen-generating corneal contact lens, and a preparation method and application of the light-driven oxygen-generating corneal contact lens. More specifically, it relates to a corneal contact lens and a preparation method thereof, as well as its application in optical protection, vision correction, vision rehabilitation and treatment of ophthalmic diseases. The invention belongs to the technical field of corneal contact lenses. Background technique [0002] Eyes are the window to the soul, and vision needs careful care. In 2018, the Basic Education Quality Monitoring Center of the Ministry of Education released the "China Compulsory Education Quality Monitoring Report". The report pointed out that the number of myopia in China has reached 600 million, and the myopia rate of young people has ranked first in the world. The myopia rate of Chinese junior high school students and college students has exceeded 70%, w...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02C7/04
CPCG02C7/04G02C7/049
Inventor 林青胡颖飞王威汪圆圆杜洪秀赵媛梁栋张小娟郝凌云
Owner JINLING INST OF TECH
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