Radiation Induced Synthesis of 2‐Hydroxyethyl Methacrylate‐Co‐Vinylbenzyltrimethylammonium Chloride Binary Hydrogel System‐I: Equilibrium Swelling Studies

2006 ◽  
Vol 43 (2) ◽  
pp. 327-343 ◽  
Author(s):  
Narender Kumar Goel ◽  
Virendra Kumar ◽  
Yatendra Kumar Bhardwaj ◽  
Sunil Sabharwal
Keyword(s):  
Hydroxyethyl Methacrylate ◽  
Equilibrium Swelling ◽  
Radiation Induced ◽  
Swelling Studies ◽  
Hydrogel System

Radiation Induced Synthesis of 2‐Hydroxyethylmethacrylate‐co‐ Vinylbenzyltrimethylammonium Chloride Binary Hydrogel System‐II: Dynamic Swelling Studies

2006 ◽  
Vol 43 (8) ◽  
pp. 1151-1166 ◽  
Author(s):  
Narender Kumar Goel ◽  
Virendra Kumar ◽  
Yatendra Kumar Bhardwaj ◽  
Jayashree Biswal ◽  
Sunil Sabharwal
Keyword(s):  
Dynamic Swelling ◽  
Radiation Induced ◽  
Swelling Studies ◽  
Hydrogel System

scholarly journals Tyrosinase-Immobilized Biosensor Based on the Functionalized Hydroxyl Group-MWNT and Detection of Phenolic Compounds in Red Wines

2009 ◽  
Vol 2009 ◽  
pp. 1-9 ◽  
Author(s):  
Ji-Hoon Yang ◽  
Jae-Chan Lee ◽  
Seong-Ho Choi
Keyword(s):  
Phenolic Compounds ◽  
Graft Polymerization ◽  
Phosphate Buffer Solution ◽  
Hydroxyl Group ◽  
Multiwall Carbon Nanotube ◽  
Hydroxyethyl Methacrylate ◽  
Red Wines ◽  
Buffer Solution ◽  
Radiation Induced ◽  
Multiwall Carbon

The tyrosinase-immobilized biosensor was developed with the hydroxyl group-functionalized multiwall carbon nanotube (MWNT) for phenol detection. The hydroxyl group-modified MWNT was modified to include poly(GVPB)-g-MWNT, or poly(HEMA), by a radiation-induced graft polymerization of glucosyl 4-vinylphenylboronate (GVPB) or 2-hydroxyethyl methacrylate (HEMA) on the surface of MWNT. The response of biosensor was in the range of 0.6–7.0 mM for concentration and in the range of 0.05–0.35 mM for phenol in a phosphate buffer solution, respectively. Various parameters influencing biosensor performance have been optimized: for pH, temperature, and the response to various phenolic compounds. The biosensor was then tested on phenolic compounds contained in three different commercial red wines.

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