Application of polyamide-amine (PAMAM) dendrimer coated ZnX semiconductor quantum dots in fingerprint development
A technology of dendrimers and semiconductors, which is applied in application, human identification, diagnostic recording/measurement, etc., can solve the problems of staff and environmental damage, and achieve the effect of simple display process, high display efficiency, and simple preparation process
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0038] An application of ZnS semiconductor quantum dots coated with polyamide-amine dendrimers in fingerprint display. PAMAM dendrimers are used to coat ZnS semiconductor quantum dots. The end groups of PAMAM dendrimers are amine groups, and the algebra is 5.0; The steps are:
[0039] 1) Synthesis of ZnS semiconductor quantum dot solution coated with PAMAM dendrimers;
[0040] i) To 100mL the concentration is 1×10 -5 mol L -1 , PAMAM dendrimer methanol solution with a pH of 7.0, adding 0.25mL concentration of 0.1mol L -1 zinc chloride solution, and then complexed at 25°C for 7h to obtain Zn 2+ Complexation solution of ions and PAMAM dendrimers, Zn during its complexation process 2+ The complex solution of ions and PAMAM dendrimers was characterized by UV-Vis absorption spectroscopy, and the results are as follows figure 1 as shown, figure 2 for figure 1 Partial enlarged view of the mid-absorption wavelength range of 260nm to 300nm; figure 1 and figure 2 It can be se...
Embodiment 2
[0051] 1) Synthesis of ZnS semiconductor quantum dot solution coated with PAMAM dendrimers;
[0052] i) To 100mL the concentration is 1×10 -5 mol L -1 , PAMAM dendrimer methanol solution with a pH of 7.0, adding 0.25mL concentration of 0.1mol L -1 zinc chloride solution, and then complexed at 25°C for 7h to obtain Zn 2+ A complex solution of ions and PAMAM dendrimers;
[0053] ii) Add 0.25 mL of 0.1 mol L to the complex solution obtained in step i). -1 Sodium sulfide solution, then stirred and reacted at 25°C for 10 minutes, and dialyzed in methanol with a dialysis bag with a molecular weight cut-off of 3500 to obtain a ZnS semiconductor quantum dot solution coated with PAMAM dendrimers;
[0054] 2) At 25°C, the concentration of 0.375mL was 0.1mol L -1 The zinc chloride solution is added to the ZnX semiconductor quantum dot solution coated with PAMAM dendrimers obtained in step 1), the ZnX semiconductor quantum dots are modified and doped, and stirred for 10 min to obtain...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com