Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
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TY - JOUR
T1 - Gold nanoparticle decorated single walled carbon nanotube nanocomposite with synergistic peroxidase like activity for d-alanine detection
AU - Haider, W.
AU - Hayat, A.
AU - Raza, Y.
AU - Anwar Chaudhry, A.
AU - Rehman, I.-U.
AU - Marty, J.L.
PY - 2015
Y1 - 2015
N2 - In this report, a gold nanoparticle decorated single walled carbon nanotube (SWCNTs) nanocomposite was shown to possess synergistic intrinsic peroxidase like activity and enhanced affinity towards H2O2 oxidation. The gold nanoparticle decorated SWCNTs nanocomposite was characterized by high catalytic activity, enhanced stability from the gold nanoparticles and improved dispersion from the SWCNTs. Subsequently, this nanocomposite was proved to be a novel peroxidase mimetic with great potential to catalyze the oxidation of 3,3′,5,5′-tetramethylbenzidine (TMB) in the presence of H2O2 to yield a blue colored product. As a proof of concept, the gold nanoparticle decorated SWCNTs composite was used as a robust nanoprobe for the detection of d-alanine with improved analytical characteristics. Taking into account the valuable intrinsic peroxidase activity of the nanohybrid, the present work may find widespread applications in the field of sensors and biosensors for diverse applications. This journal is © The Royal Society of Chemistry.
AB - In this report, a gold nanoparticle decorated single walled carbon nanotube (SWCNTs) nanocomposite was shown to possess synergistic intrinsic peroxidase like activity and enhanced affinity towards H2O2 oxidation. The gold nanoparticle decorated SWCNTs nanocomposite was characterized by high catalytic activity, enhanced stability from the gold nanoparticles and improved dispersion from the SWCNTs. Subsequently, this nanocomposite was proved to be a novel peroxidase mimetic with great potential to catalyze the oxidation of 3,3′,5,5′-tetramethylbenzidine (TMB) in the presence of H2O2 to yield a blue colored product. As a proof of concept, the gold nanoparticle decorated SWCNTs composite was used as a robust nanoprobe for the detection of d-alanine with improved analytical characteristics. Taking into account the valuable intrinsic peroxidase activity of the nanohybrid, the present work may find widespread applications in the field of sensors and biosensors for diverse applications. This journal is © The Royal Society of Chemistry.
KW - Amino acids
KW - Carbon
KW - Catalyst activity
KW - Gold
KW - Metal nanoparticles
KW - Nanocomposites
KW - Nanoparticles
KW - Yarn
KW - Diverse applications
KW - Enhanced stability
KW - Gold Nanoparticles
KW - Peroxidase activities
KW - Peroxidase-like activities
KW - Single-walled carbon
KW - Single-walled carbon nanotube (SWCNTs)
KW - Tetramethylbenzidine
KW - Single-walled carbon nanotubes (SWCN)
U2 - 10.1039/c5ra01258a
DO - 10.1039/c5ra01258a
M3 - Journal article
VL - 5
SP - 24853
EP - 24858
JO - RSC Advances
JF - RSC Advances
SN - 2046-2069
IS - 32
ER -