Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Fluorescent sericin platinum nano-cluster and preparing method and application thereof

A technology of platinum nano and fluorescent filaments, applied in nanotechnology, nanotechnology, fluorescence/phosphorescence, etc., can solve the problems of expensive instruments, cumbersome pre-processing, and long time consumption, and achieve less sample consumption, simple and scientific production methods, and detection low cost effect

Active Publication Date: 2019-12-10
ANHUI NORMAL UNIV
View PDF10 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in recent years, methods such as high performance liquid chromatography, enzyme-linked immunosorbent assay, and enzyme inhibition method used for the detection of pyrithion pesticide residues have defects such as cumbersome pre-treatment, expensive instruments, and long time-consuming.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fluorescent sericin platinum nano-cluster and preparing method and application thereof
  • Fluorescent sericin platinum nano-cluster and preparing method and application thereof
  • Fluorescent sericin platinum nano-cluster and preparing method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Embodiment 1: Preparation of Sericin-Pt NCs

[0038] (1) Take 250 mg of sericin and add 5 mL of pure water to prepare a 50 mg / mL sericin solution. Take 5 mL of this solution and add 1 mL of 25 mM H 2 PtCl 6 Aqueous solution, vortex to mix thoroughly for 5min.

[0039] (2) Add 1M NaOH solution to the solution in the previous step to make the pH value 11. Add water to make up to 10mL, and vortex to mix again for 5min.

[0040] (3) Place the EP tube in a water bath at 60°C for 12 hours in the dark to obtain a polymer of platinum nanoclusters, centrifuge at 5,000 rpm for 10 minutes, and take the supernatant and store it in a refrigerator at 4°C in the dark for future use.

Embodiment 2

[0042](1) Take 125 mg of sericin and add 5 mL of pure water to prepare a 25 mg / mL sericin solution. Take 5 mL of this solution and add 1 mL of 50 mM H 2 PtCl 6 Aqueous solution, vortex to mix well for 10min.

[0043] (2) Add 1M NaOH solution to the solution in the previous step to make the pH value 10. Add water to make up to 10mL, and vortex to mix again for 5min.

[0044] (3) Place the EP tube in a water bath at 37°C for 8 hours in the dark to obtain a polymer of platinum nanoclusters, centrifuge at 5,000 rpm for 10 minutes, and take the supernatant and store it in a refrigerator at 4°C in the dark for future use.

Embodiment 3

[0046] (1) Take 250 mg of sericin and add 5 mL of pure water to prepare a 50 mg / mL sericin solution. Take 5 mL of this solution and add 1 mL of 100 mM H 2 PtCl 6 Aqueous solution, vortex to mix well for 10min.

[0047] (2) Add 1M NaOH solution to the solution in the previous step to make the pH value 12. Add water to make up to 10mL, and vortex to mix again for 5min.

[0048] (3) Place the EP tube in a 50°C water bath for 16 hours in the dark to obtain a polymer of platinum nanoclusters, centrifuge at 5,000 rpm for 10 minutes, and take the supernatant and store it in a 4°C refrigerator in the dark for future use.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Concentrationaaaaaaaaaa
Login to View More

Abstract

The invention provides a sericin-wrapped platinum nano-cluster capable of emitting green light and a preparing method and application thereof. The preparing method includes the steps of mixing sericinwith a high-price platinum complex according to a certain ratio, adding NaOH to adjust the pH value after sufficient and even mixing through a vortex device, conducting even mixing again through thevortex device, and conducting water bath for several hours to obtain a polymer of the platinum nano-cluster. The preparing method is simple in process, green, efficient and high in feasibility and haswide and practical application value. The nano-cluster can be used for detecting chlorpyrifos in substances, and the application range includes environment water samples, soil samples and fruit and vegetable samples. The nano-cluster can also be used for detecting the content of chloramphenicol in samples. The detecting method is simple, efficient and high in specificity and sensitivity, and a new concept is provided for using sericin.

Description

technical field [0001] The invention belongs to the field of preparation and application of functional nano-fluorescent materials, and in particular relates to a fluorescent sericin platinum nano-cluster and its preparation method and application. Background technique [0002] Metal nanoclusters are fluorescent, water-soluble molecular aggregates composed of several to tens of atoms. Due to its unique quantum size effect, biocompatibility, strong photostability, and strong anti-polymerization ability, it has broad application prospects in the fields of biomarkers and environmental monitoring. Among them, platinum nanoclusters have many advantages such as good fluorescence properties, photostability, low toxicity, biocompatibility, and easy surface modification, and have attracted more and more attention from researchers. However, it is difficult to synthesize platinum nanoclusters with strong photostability, good biocompatibility, and simple and easy repeatability. [0003...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B22F1/00B22F9/24G01N21/64B82Y30/00B82Y40/00
CPCB22F9/24G01N21/6428B82Y30/00B82Y40/00G01N2021/6432B22F1/0553B22F1/07B22F1/102B22F1/054
Inventor 王宝娟常欣高鹏吴爽李全发鲁山陈杰熊声麒吴雨芬马晓燕
Owner ANHUI NORMAL UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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