Gold nanoparticles-mesoporous silica composite used as an enzyme immobilization matrix for amperometric glucose biosensor construction

2007 ◽  
Vol 124 (1) ◽  
pp. 179-186 ◽  
Author(s):  
Yu Bai ◽  
Hua Yang ◽  
Weiwei Yang ◽  
Yancai Li ◽  
Changqing Sun
Keyword(s):  
Gold Nanoparticles ◽  
Mesoporous Silica ◽  
Enzyme Immobilization ◽  
Glucose Biosensor ◽  
Silica Composite ◽  
Immobilization Matrix

Development of a Bienzymatic Amperometric Glucose Biosensor Using Mesoporous Silica (MCM-41) for Enzyme Immobilization and Its Application on Liquid Pharmaceutical Formulations

2012 ◽  
Vol 25 (1) ◽  
pp. 308-315 ◽  
Author(s):  
Noemi Caro-Jara ◽  
Rodolfo Mundaca-Uribe ◽  
Claudio Zaror-Zaror ◽  
Jorge Carpinelli-Pavisic ◽  
Mario Aranda-Bustos ◽  
...  
Keyword(s):  
Mesoporous Silica ◽  
Enzyme Immobilization ◽  
Pharmaceutical Formulations ◽  
Glucose Biosensor ◽  
Mcm 41

Thermal Hydrogen Reduction for Synthesis of Gold Nanoparticles in the Nanochannels of Mesoporous Silica Composite

2014 ◽  
Vol 70 (1) ◽  
Author(s):  
Mohamad Azani Jalani ◽  
Leny Yuliati ◽  
Hendrik O. Lintang
Keyword(s):  
Particle Size ◽  
Gold Nanoparticles ◽  
Mesoporous Silica ◽  
Hydrogen Reduction ◽  
Sol Gel ◽  
Average Particle Size ◽  
Average Particle ◽  
Silica Composite ◽  
Interpore Distance ◽  
New Strategy

Gold nanoparticles (AuNPs) with small particle size have been difficult to be synthesized due to their strong agglomeration. Herein we report that the nanochannels of mesoporous silica synthesized from template sol-gel synthesis were utilized to prepare AuNPs by employing thermal hydrogen reduction. Mesoporous silica composite with an interpore distance of 4.1 nm was successfully fabricated as a thin film by an amphiphilic trinuclear gold(I) pyrazolate complex ([Au3Pz3]C10TEG) as a template. In contrast to calcination method of this composite and the bulk [Au3Pz3]C10TEG complex at 450ºC for 3 h, thermal hydrogen reduction at 250ºC for 2 h showed transmission electron microscope (TEM) images and diffraction pattern with smaller particle size (14.5 nm) and more homogenous distribution of AuNPs with up to 44% of the particle size in the range of 10 to 20 nm. The decreasing of average particle size in this new strategy indicated by the red-shifting of the surface plasmon resonance (SPR) band from 518 (AuNPs from the bulk [Au3Pz3]C10TEG complex) and 544 (calcination) to 558 nm.

scholarly journals AuNP and ssDNA capped mesoporous silica nanoparticles for laser controlled drug release

RSC Advances ◽  
2019 ◽  
Vol 9 (60) ◽  
pp. 34958-34962 ◽  
Author(s):  
Lu Zhou ◽  
Guojie Liu ◽  
Yang Wang ◽  
Jianling Liu ◽  
Yajie Zhang ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Drug Release ◽  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Mesoporous Silica Nanoparticles ◽  
Controlled Drug Release

Gold nanoparticles were linked to the surface of mesoporous silica through a polyA oligonucleotide and infrared stimulation controlled drug release.

Periodically organized mesoporous silica thin layers as host for phosphinines-stabilized gold nanoparticles: UV–visible sensing of small thiols and phosphines

2006 ◽  
Vol 495 (1-2) ◽  
pp. 280-285 ◽  
Author(s):  
Frédéric Goettmann ◽  
Audrey Moores ◽  
Cédric Boissière ◽  
Pascal Le Floch ◽  
Clément Sanchez
Keyword(s):  
Gold Nanoparticles ◽  
Mesoporous Silica ◽  
Thin Layers ◽  
Uv Visible

Gold nanoparticles-coated eggshell membrane with immobilized glucose oxidase for fabrication of glucose biosensor

2011 ◽  
Vol 152 (1) ◽  
pp. 49-55 ◽  
Author(s):  
Baozhan Zheng ◽  
Shunping Xie ◽  
Lei Qian ◽  
Hongyan Yuan ◽  
Dan Xiao ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Glucose Oxidase ◽  
Glucose Biosensor ◽  
Eggshell Membrane ◽  
Immobilized Glucose Oxidase
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