A highly sensitive patterned photonic crystal sensing material and its preparation and application
A technology of photonic crystals and sensing materials, applied in the direction of color/spectral characteristic measurement, etc., can solve problems such as difficult to meet high-sensitivity detection, low sensitivity, and narrow color change range, so as to improve the detection limit of the naked eye and broaden the response range , the effect of improving sensitivity and self-expression effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0037] The present embodiment is the preparation of a highly sensitive patterned photonic crystal sensing material for pH response, including the following steps:
[0038] (1) Fe 3 O 4 Preparation of @C Nanoparticles: 0.65 g of ferrocene is dissolved in 65 ml of acetone to form a solution, and then 2.2 ml of mass fraction is 30% a hydrogen peroxide solution, stirred for 30 min, resulting in a mixed solution of the solvent thermal reaction; The mixed solution was then transferred to the reaction kettle, and the solvent was thermally reacted. The reaction temperature was controlled at 210 ° C, and the reaction time was at 72 h; after the reaction was completed, the nanoparticles were separated, washed, dried, and the size of the size of 120 nm was obtained. 3 O 4 @C nanoparticles.
[0039] (2) Preparation of photonic crystal hydrogel substrate: the Fe obtained in step (1) 3 O 4 @C nanoparticles, hydroxyethyl methacrylate (HEMA), polyethylene glycol diacrylate (PEG-DA, molecular weig...
Embodiment 2
[0042] The present embodiment is the preparation of a highly sensitive patterned photonic crystal sensing material for pH response, including the following steps:
[0043] (1) Fe 3 O 4 Preparation of @C Nanoparticles: 0.6 g of ferrocene is dissolved in 60 ml of acetone to form a solution, and then the 4 ml of mass fraction is 30% of a hydrogen peroxide solution, stirred for 30 min, resulting in a mixed solution of the solvent thermal reaction; then The mixed solution was transferred to the reactor, and the heat reaction was carried out, the reaction temperature was controlled at 210 ° C, the reaction time was at 72 h; after the reaction was completed, the nanoparticles were separated, washed, dried, and the size of a size of 150 nm was obtained. 3 O 4 @C nanoparticles.
[0044] (2) Preparation of photonic crystal hydrogel substrate: the Fe obtained in step (1) 3 O 4 @C Nanoparticles, hydroxyethyl methacrylate (HEMA), polyethylene glycol diacrylate (PEG-DA, molecular weight 700 g / ...
Embodiment 3
[0047] The present embodiment is the preparation of a highly sensitive patterned photonic crystal sensing material for pH response, including the following steps:
[0048] (1) Fe 3 O 4 Preparation of @C Nanoparticles: 0.6 g of ferrocene is dissolved in 60 ml of acetone to form a solution, and then the 6 ml of mass fraction is 30% a hydrogen peroxide solution, stirred for 30 min, resulting in a mixed solution of the solvent thermal reaction; then The mixed solution was transferred to the reactor, and the heat reaction was carried out, the reaction temperature was controlled at 210 ° C, the reaction time was separated from the reaction, and the nanoparticles were separated, washed, dried, to obtain a size of 190 nm. Fe 3 O 4 @C nanoparticles.
[0049] (2) Preparation of photonic crystal hydrogel substrate: the Fe obtained in step (1) 3 O 4 @C Nanoparticles, hydroxyethyl methacrylate (HEMA), polyethylene glycol diacrylate (PEG-DA, molecular weight 700 g / mol) and photoinitiator (2,2...
PUM
| Property | Measurement | Unit |
|---|---|---|
| diameter | aaaaa | aaaaa |
| size | aaaaa | aaaaa |
| size | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More