Synthesis of poly(dihydroxystyrene-block-styrene) (PDHSt-b-PSt) by the RAFT process and preparation of organic-solvent-dispersive Ag NPs by automatic reduction of metal ions in the presence of PDHSt-b-PSt

2015 ◽  
Vol 51 (18) ◽  
pp. 3743-3746 ◽  
Author(s):  
Yuta Saito ◽  
Hiroshi Yabu
Keyword(s):  
Block Copolymer ◽  
Organic Solvent ◽  
Metal Ions ◽  
Side Chains ◽  
Ag Nps

We proposed a block copolymer PDHSt-b-PSt, that contains catechol groups in side chains of PDHSt moieties. The block copolymer was used as a reductant to synthesize organic-solvent-dispersive Ag NPs.

scholarly journals Ag-Functionalized Si Nanowire Arrays Aligned Vertically for SERS Detection of Captured Heavy Metal Ions by BSA

Coatings ◽  
2021 ◽  
Vol 11 (6) ◽  
pp. 685
Author(s):  
Ai-Huei Chiou ◽  
Jun-Luo Wei ◽  
Ssu-Han Chen
Keyword(s):  
Heavy Metal ◽  
Raman Scattering ◽  
Metal Ions ◽  
Metal Ion ◽  
Heavy Metal Ions ◽  
Great Promise ◽  
Ag Nps ◽  
Water Contact ◽  
Oh Groups ◽  
Si Nanowire

A novel surface-enhanced Raman scattering (SERS)-based probe to capture heavy metal ion (Zn2+) by bovine serum albumin (BSA) using Si-nanowire (SiNW) arrays with silver nanoparticles (AgNPs) was developed. A layer with AgNPs was deposited on the SiNW surface by RF magnetron sputtering for enhancement of SERS signals. Using a high-resolution transmission electron microscope (HRTEM), the observation reveals that the AgNP layer with depths of 30–75 nm was successfully deposited on SiNW arrays. The Ag peaks in EDS and XRD spectra of SiNW arrays confirmed the presence of Ag particles on SiNW arrays. The WCA observations showed a high affinity of the Ag–SiNW arrays immobilized with BSA (water contact angle (WCA) = 87.1°) and ZnSO4 (WCA = 8.8°). The results of FTIR analysis illustrate that the conjugate bonds exist between zinc sulfate (ZnSO4) and –OH groups/–NH groups of BSA. The resulting SiNWs/Ag NPs composite interfaces showed large Raman scattering enhancement for the capture of heavy metal ions by BSA with a detection of 0.1 μM. BSA and ZnSO4 conjugations, illustrating specific SERS spectra with high sensitivity, which suggests great promise in developing label-free biosensors.

Synthesis and Morphology of Molecular Brushes with Polyacrylonitrile Block Copolymer Side Chains and Their Conversion into Nanostructured Carbons

2007 ◽  
Vol 40 (17) ◽  
pp. 6199-6205 ◽  
Author(s):  
Chuanbing Tang ◽  
Bruno Dufour ◽  
Tomasz Kowalewski ◽  
Krzysztof Matyjaszewski
Keyword(s):  
Block Copolymer ◽  
Side Chains ◽  
Molecular Brushes ◽  
Nanostructured Carbons

1, 1'-Ferrocenedicarboxylic acid/tetrahydrofuran induced precipitation of calcium carbonate with multi-level structure in water

CrystEngComm ◽  
2021 ◽  
Author(s):  
Lihong Zhou ◽  
Guanghui Wang ◽  
Jie Du ◽  
Qinjiang Zhao ◽  
Xiang Pei
Keyword(s):  
Organic Chemistry ◽  
Calcium Carbonate ◽  
Organic Solvent ◽  
Metal Ions ◽  
Level Structure ◽  
Multi Level

The system of organic solvent and ligand had been successfully applied to regulate the coordination of metal ions in organic chemistry. Inspired by previous works, we had conducted the study...

Mixed polymeric micelles as a multifunctional visual thermosensor for the rapid analysis of mixed metal ions with Al3+ and Fe3+

2018 ◽  
Vol 42 (15) ◽  
pp. 12853-12864 ◽  
Author(s):  
Juan Han ◽  
Yunfeng Cai ◽  
Yun Wang ◽  
Xiaohui Dai ◽  
Lei Wang ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Metal Ions ◽  
Chain Transfer ◽  
Polymeric Micelles ◽  
Raft Polymerization ◽  
Rapid Analysis ◽  
Mixed Metal ◽  
Reversible Addition ◽  
Mixed Polymeric Micelles

A novel type of responsive mixed double hydrophilic block copolymer (DHBC)-based multifunctional visual thermosensor for the detection of Al3+ and Fe3+ was designed and synthesized based on reversible addition fragmentation chain transfer (RAFT) polymerization.

scholarly journals An amphiphilic, heterografted polythiophene copolymer containing biocompatible/biodegradable side chains for use as an (electro)active surface in biomedical applications

2019 ◽  
Vol 10 (36) ◽  
pp. 5010-5022 ◽  
Author(s):  
Brenda G. Molina ◽  
Luminita Cianga ◽  
Anca-Dana Bendrea ◽  
Ioan Cianga ◽  
Carlos Alemán ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Redox Reaction ◽  
Biomedical Applications ◽  
Active Surface ◽  
Side Chains ◽  
Hydrophobic Core

Design of an amphiphilic heterografted block copolymer composed of a hydrophobic core backbone and both hydrophilic side chains, able to detect the redox reaction of NADH.

scholarly journals Effect of Metal Ions, Chemical Agents, and Organic Solvent on Bacillus Sp.R2 Chitinase Activity

2016 ◽  
Vol 22 ◽  
pp. 465-470 ◽  
Author(s):  
Ben Amar Cheba ◽  
Taha Ibrahim Zaghloul ◽  
Mohamad Hisham EL-Massry ◽  
Ahmad Rafik EL-Mahdy
Keyword(s):  
Organic Solvent ◽  
Metal Ions ◽  
Chitinase Activity ◽  
Chemical Agents
Sign in / Sign up

Export Citation Format

Share Document