Temperature responsive polymer brushes grafted from graphene oxide: an efficient fluorescent sensing platform for 2,4,6-trinitrophenol

2016 ◽  
Vol 4 (29) ◽  
pp. 7083-7092 ◽  
Author(s):  
Yajiao Song ◽  
Jianhua Lü ◽  
Bingxin Liu ◽  
Changli Lü
Keyword(s):  
Graphene Oxide ◽  
Polymer Brushes ◽  
Raft Polymerization ◽  
Selective Detection ◽  
Fluorescent Sensing ◽  
Temperature Responsive ◽  
Sensing Platform ◽  
Responsive Polymer ◽  
Responsive Behavior ◽  
Copolymer Brushes

The block copolymer brushes of PNIPAM-b-P(MQ-co-GMA) were grafted from GO by RAFT polymerization. The resulting luminescent hybrid containing Alq3exhibited a robust temperature-responsive behavior and could be used as a nano-platform for the sensitive and selective detection of TNP.

Preparation of a temperature-responsive block copolymer-anchored graphene oxide@ZnS NPs luminescent nanocomposite for selective detection of 2,4,6-trinitrotoluene

2018 ◽  
Vol 42 (12) ◽  
pp. 9598-9605 ◽  
Author(s):  
Yajiao Song ◽  
Haichao Duan ◽  
Siyao Zhu ◽  
Jianhua Lü ◽  
Changli Lü
Keyword(s):  
Graphene Oxide ◽  
Block Copolymer ◽  
Selective Detection ◽  
Stacking Interaction ◽  
Fluorescent Sensing ◽  
Temperature Responsive ◽  
Π Stacking ◽  
Sensing Platform ◽  
Π Stacking Interaction

Thermo-sensitive block copolymer decorated GO@ZnS NPs nanocomposite was constructed via π–π stacking interaction as a robust fluorescent sensing platform for the selective detection of TNT.

Multi-Stimuli-Responsive Mesoporous Membranes and Effect of Molecular Architecture on Thermo- and pH-Responsive Behavior of the grafted Block Copolymer brushes

2019 ◽  
Author(s):  
Yanchun Tang ◽  
Kohzo Ito ◽  
Hideaki Yokoyama
Keyword(s):  
Polymer Brushes ◽  
Diblock Copolymers ◽  
Neutron Reflectivity ◽  
Molecular Architecture ◽  
Stimuli Responsive ◽  
Responsive Polymer ◽  
The Matrix ◽  
Stable Part ◽  
Copolymer Brushes ◽  
Mesoporous Membranes

In this study, we prepared ultrafiltration membranes with a decoupled responses of filtration property to temperature and pH. The membrane preparation method was developed based on our previous work. We utilized methanol-supercritical carbon dioxide (methanol-scCO<sub>2</sub>) selective swelling method to introduce nanopores to block copolymers containing poly(diethylene glycol) methyl ether methacrylate (PMEO<sub>2</sub>MA), poly(N,N-dimethylaminoethyl methacrylate) (PDMAEMA) and polystyrene (PS) blocks. Formation of the mesoporous barrier layer with PS being the mechanically stable part of the matrix was driven by selective swelling of the PMEO<sub>2</sub>MA-b-PDMAEMA domains. Due to the selective swelling of PMEO<sub>2</sub>MA or PDMAEMA domains to introduce pores, the interior of the pores are covered with PMEO<sub>2</sub>MA or PDMAEMA blocks after pore formation. The PMEO<sub>2</sub>MA-b-PDMAEMA polymer brushes are naturally attached on the pore walls and worked as functional gates. PMEO<sub>2</sub>MA is a non-toxic, neutral thermo-responsive polymer with LCST at 26 ᴼC. PDMAEMA is a typical weak polyelectrolyte with pK<sub>a</sub> value at 7.0-7.5 and also a thermo-responsive polymer revealed a LCST of 20-80 °C in aqueous solution. Therefore, these membranes were expected to have multi dimensions as function of the combination of temperature and pH. Moreover, to understand the detail of the temperature and pH depended conformation transitions of PMEO<sub>2</sub>MA-b-PDMAEMA brushes, those diblock copolymers were end-tethered on flat substrates and analyzed via neutron reflectivity (NR).

scholarly journals Novel temperature-responsive polymer brushes with carbohydrate residues facilitate selective adhesion and collection of hepatocytes

2012 ◽  
Vol 13 (6) ◽  
pp. 064206 ◽  
Author(s):  
Naokazu Idota ◽  
Mitsuhiro Ebara ◽  
Yohei Kotsuchibashi ◽  
Ravin Narain ◽  
Takao Aoyagi
Keyword(s):  
Polymer Brushes ◽  
Temperature Responsive ◽  
Responsive Polymer

scholarly journals A fluorescence sensing platform of theophylline based on the interaction of RNA aptamer with graphene oxide

RSC Advances ◽  
2019 ◽  
Vol 9 (34) ◽  
pp. 19813-19818 ◽  
Author(s):  
Jian-Feng Wu ◽  
Xin Gao ◽  
Ling Ge ◽  
Guang-Chao Zhao ◽  
Guang-Feng Wang
Keyword(s):  
Graphene Oxide ◽  
Rna Aptamer ◽  
Fluorescence Sensing ◽  
Fluorescent Sensing ◽  
Sensing Platform

A fluorescent sensing platform of theophylline based on the interaction of an RNA aptamer with GO and CdTe as the signal.

scholarly journals Nanohybrid polymer brushes on silica for bioseparation

2016 ◽  
Vol 4 (19) ◽  
pp. 3247-3256 ◽  
Author(s):  
Lingdong Jiang ◽  
Héctor Bagán ◽  
Tripta Kamra ◽  
Tongchang Zhou ◽  
Lei Ye
Keyword(s):  
Atom Transfer Radical Polymerization ◽  
Click Chemistry ◽  
Radical Polymerization ◽  
Polymer Brushes ◽  
Atom Transfer ◽  
Temperature Responsive ◽  
Responsive Polymer

Surface-initiated atom transfer radical polymerization and click chemistry are used to synthesize temperature-responsive polymer brushes for glycoprotein separation.

Synthesis of PNIPAM polymer brushes on reduced graphene oxide based on click chemistry and RAFT polymerization

2011 ◽  
Vol 50 (2) ◽  
pp. 329-337 ◽  
Author(s):  
Yongfang Yang ◽  
Xiaohui Song ◽  
Liang Yuan ◽  
Mao Li ◽  
Jinchuan Liu ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Click Chemistry ◽  
Reduced Graphene Oxide ◽  
Polymer Brushes ◽  
Raft Polymerization ◽  
Reduced Graphene
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