Immobilization of acetylcholinesterase on electrospun poly(acrylic acid)/multi-walled carbon nanotube nanofibrous membranes

RSC Advances ◽  
2015 ◽  
Vol 5 (53) ◽  
pp. 42572-42579 ◽  
Author(s):  
Seyed Vahid Ebadi ◽  
Aref Fakhrali ◽  
Seyed Omid Ranaei-Siadat ◽  
Ali Akbar Gharehaghaji ◽  
Saeedeh Mazinani ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Acrylic Acid ◽  
Immobilized Enzyme ◽  
Original Activity ◽  
Multi Walled Carbon Nanotube ◽  
Nanofibrous Membranes ◽  
Poly Acrylic Acid

The immobilized enzyme on nanofibrous samples maintained more than 90% of its original activity even after 10 cycles of reusing.

scholarly journals In Situ Nitroxide-Mediated Polymerized Poly(acrylic acid) as a Stabilizer/Compatibilizer Carbon Nanotube/Polymer Composites

2007 ◽  
Vol 2007 ◽  
pp. 1-12 ◽  
Author(s):  
Vitaliy Datsyuk ◽  
Laurent Billon ◽  
Christelle Guerret-Piécourt ◽  
Sylvie Dagréou ◽  
Nicolas Passade-Boupatt ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Acrylic Acid ◽  
Polymer Composites ◽  
Diblock Copolymers ◽  
Polymer Network ◽  
Electron Microscopies ◽  
Transmission Electron ◽  
Wide Range ◽  
Poly Acrylic Acid

Carbon nanotube (CNT) polymer composites were synthesized via in situ nitroxide-mediated diblock copolymerization. Poly(acrylic acid) (PAA) was chosen as a first block to obtain a precomposite CNT-PAA which is readily dispersible in various solvents including water. The immobilization of the stable poly(acrylic acid) alkoxyamine functionality on the nanotube surface occurs during the synthesis of the first block without CNT prior treatment. The living character of this block is established by spectroscopic methods and the nature of the CNT/PAA interaction is discussed. This living first block offers the opportunity to reinitiate the polymerization of a second block that can be chosen among a wide range of monomers. This versatility is illustrated with a second block containing methyl acrylate (MA) or styrene (S). Scanning and transmission electron microscopies confirm good CNT dispersion in the polymer network, while transmission electron microscopy also spots the anchorage locations of PAA on the CNT surface. Such nanotubes wrapped by diblock copolymers can be dispersed in various polymer matrices to create CNT—polymer composites. Conductivity measurements show that these composites obey a percolation-like power law with a low percolation threshold (less than 0.5 vol%) and a high maximum conductivity (up to 1.5 S/cm at room temperature).

Mechanism of carbon nanotube dispersion and precipitation during treatment with poly(acrylic acid)

2008 ◽  
Vol 40 (9) ◽  
pp. 1294-1298 ◽  
Author(s):  
N. H. Tran ◽  
A. S. Milev ◽  
M. A. Wilson ◽  
J. R. Bartlett ◽  
G. S. K. Kannangara
Keyword(s):  
Carbon Nanotube ◽  
Acrylic Acid ◽  
Carbon Nanotube Dispersion ◽  
Nanotube Dispersion ◽  
Poly Acrylic Acid

scholarly journals Study of Poly(Acrylic Acid)–Carbon Nanotube Self-Assembly Films

2011 ◽  
Vol 14 (4) ◽  
pp. 347-352 ◽  
Author(s):  
Xuefeng Lia ◽  
Han Yanb ◽  
Shaoxian Penga
Keyword(s):  
Carbon Nanotube ◽  
Acrylic Acid ◽  
Self Assembly ◽  
Poly Acrylic Acid
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