Microwave-assisted Synthesis of Near-infrared-luminescent Ovalbumin-protected Gold Nanoparticles as a Luminescent Glucose Sensor

2014 ◽  
Vol 43 (6) ◽  
pp. 793-795 ◽  
Author(s):  
Junya Yoshimoto ◽  
Naoki Tanaka ◽  
Mitsuru Inada ◽  
Ryuichi Arakawa ◽  
Hideya Kawasaki
Keyword(s):  
Gold Nanoparticles ◽  
Near Infrared ◽  
Glucose Sensor ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted

Microwave assisted synthesis of gold nanoparticles and their antibacterial activity against Escherichia coli (E. coli)

2011 ◽  
Vol 11 (1) ◽  
pp. S360-S363 ◽  
Author(s):  
Nishat Arshi ◽  
Faheem Ahmed ◽  
Shalendra Kumar ◽  
M.S. Anwar ◽  
Junqing Lu ◽  
...  
Keyword(s):  
Escherichia Coli ◽  
Gold Nanoparticles ◽  
Antibacterial Activity ◽  
Microwave Assisted Synthesis ◽  
E Coli ◽  
Microwave Assisted

Facile microwave-assisted synthesis of Zn 2 GeO 4 :Mn 2+ , Yb 3+ uniform nanorods and near-infrared down-conversion properties

2017 ◽  
Vol 64 ◽  
pp. 152-159 ◽  
Author(s):  
Min Yang ◽  
Guowei Deng ◽  
Tianwu Hou ◽  
Xiaopeng Jia ◽  
Ying Wang ◽  
...  
Keyword(s):  
Near Infrared ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted ◽  
Down Conversion

scholarly journals Comparison of electrocatalytic activity for glucose electrooxidation of gold nanoparticles fabricated by different methods

Chemija ◽  
2019 ◽  
Vol 30 (1) ◽  
Author(s):  
Daina Upskuvienė ◽  
Aldona Balčiūnaitė ◽  
Jūratė Vaičiūnienė ◽  
Algirdas Selskis ◽  
Rimantas Vaitkus ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Electrocatalytic Activity ◽  
Au Nanoparticles ◽  
Carbon Support ◽  
Alkaline Media ◽  
Carbon Powder ◽  
Microwave Assisted Synthesis ◽  
One Pot ◽  
Microwave Assisted ◽  
Glucose Electrooxidation

In this study, the gold nanoparticles (AuNPs) without carbon support were prepared using the well-known citrate reduction method. The carbon supported AuNPs nanocomposites were fabricated by two different approaches: chemical adsorption of AuNPs from the prepared citrate stabilized AuNP colloidal solution on the carbon powder surface and one-pot microwave-assisted synthesis. The nanocomposites were characterized using scanning electron microscopy (SEM) and inductively coupled plasma optical emission spectroscopy (ICP-OES). The electrocatalytic activity of the prepared catalysts was evaluated for the electrooxidation of glucose in an alkaline media using cyclic voltammetry. The highest electrocatalytic activity was observed for the catalyst of carbon supported Au nanoparticles prepared by microwave-assisted synthesis, followed by the catalyst of carbon supported Au nanoparticles prepared by means of the adsorption method, whereas the pure Au nanoparticles without carbon support exhibited the lowest electrocatalytic properties for glucose electrooxidation.

Microwave-Assisted Synthesis of Unmodified Gold Nanoparticles for Colorimetric Detection of Dopamine

2017 ◽  
Vol 730 ◽  
pp. 167-171 ◽  
Author(s):  
Ekarat Detsri ◽  
Kanrayasiri Kamhom ◽  
Chatsuda Detsri
Keyword(s):  
Gold Nanoparticles ◽  
Sodium Citrate ◽  
Limit Of Detection ◽  
Signal To Noise Ratio ◽  
Chemical Reduction ◽  
Colorimetric Detection ◽  
Random Coil ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted ◽  
Transmission Electron

Unmodified gold nanoparticles (AuNPs) have been successfully synthesized by the chemical reduction of tetrachloride gold (III) ions ([AuCl4]-) in the presence of sodium citrate based on the rapid microwave−assisted approach. The diameter of the synthesized nanoparticles was found in the range of 16.50±2.75 nm. The AuNPs were characterized using UV−vis spectrophotometer, zeta potential analyzer and transmission electron microscope (TEM). The sodium citrate protected AuNPs were found to be selective and sensitive for the detection of dopamine. It was based on the aggregation change of the nanoparticles from random coil to hairpin structure upon the addition of dopamine concentration. The red shift of the plasmonic peak wavelength of AuNPs could be used for the detection of dopamine. The response to dopamine allows for a linear range from 10 to 125 mg⋅L-1 (R2 = 0.9804) with a limit of detection (LOD) at a signal to noise ratio of 3 of 12.85±1.38 mg⋅L-1. The colorimetric sensor was evaluated with 98.0−99.9% recovery of added dopamine in urine sample. The proposed sensor was successfully applied to the determination of dopamine in biological samples.

Facile microwave-assisted synthesis of Cr2O3 nanoparticles with high near-infrared reflection for roof-top cooling applications

2019 ◽  
Vol 785 ◽  
pp. 747-753 ◽  
Author(s):  
Hebbar N. Deepak ◽  
K.S. Choudhari ◽  
S.A. Shivashankar ◽  
C. Santhosh ◽  
Suresh D. Kulkarni
Keyword(s):  
Near Infrared ◽  
Microwave Assisted Synthesis ◽  
Microwave Assisted ◽  
Infrared Reflection ◽  
Cr2o3 Nanoparticles
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