Optical fiber dissolved oxygen sensor based on Pt(II) complex and core-shell silica nanoparticles incorporated with sol–gel matrix

2010 ◽  
Vol 151 (1) ◽  
pp. 83-89 ◽  
Author(s):  
Cheng-Shane Chu ◽  
Yu-Lung Lo
Keyword(s):  
Optical Fiber ◽  
Dissolved Oxygen ◽  
Silica Nanoparticles ◽  
Oxygen Sensor ◽  
Sol Gel ◽  
Core Shell

Physico-Chemical Properties of Silica Coated Superparamagnetic Magnetite Nanoparticles Synthesized by Non-Seeded Process

2015 ◽  
Vol 1107 ◽  
pp. 267-271
Author(s):  
Sodipo Bashiru Kayode ◽  
Azlan Abdul Aziz
Keyword(s):  
Silica Nanoparticles ◽  
Magnetite Nanoparticles ◽  
Colloidal Suspension ◽  
Sol Gel ◽  
Chemical Properties ◽  
Colloidal Suspensions ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Physico Chemical ◽  
Physical And Chemical

The science of core-shell nanoparticles requires investigation into several physical and chemical properties of the composite nanoparticles. Unlike the conventional sol-gel or the reverse microemulsion micelle method, we presented here a non-seeded process of encapsulating superparamagnetic magnetite nanoparticles (SPMN) with silica. Physico-chemical analysis of the product was used to confirm the result of the coating procedure. Colloidal suspension of SPMN and silica nanoparticles were synthesised through coprecipitation method and modified Stöber method respectively. Afterwards, both colloidal suspensions of SPMN and silica nanoparticles were sonicated to encapsulate the SPMN with silica. Elemental mapping of the composite particles with electron spectroscopy imaging (ESI) confirmed the core-shell micrograph of the SPMN and silica. The X-ray diffraction pattern (XRD) showed the silica shell to be in amorphous form. FTIR analysis further confirmed the chemical properties of the product to be silica coated SPMN.

Characterization of a fluorescent sol–gel encapsulated erythrosin B dissolved oxygen sensor

2003 ◽  
Vol 487 (1) ◽  
pp. 101-108 ◽  
Author(s):  
R.T Bailey ◽  
F.R Cruickshank ◽  
G Deans ◽  
R.N Gillanders ◽  
M.C Tedford
Keyword(s):  
Dissolved Oxygen ◽  
Oxygen Sensor ◽  
Sol Gel ◽  
Erythrosin B

A facile synthesis of highly water-soluble, core–shell organo-silica nanoparticles with controllable size via sol–gel process

2009 ◽  
Vol 340 (2) ◽  
pp. 202-208 ◽  
Author(s):  
Hongwei Du ◽  
Paul D. Hamilton ◽  
Matthew A. Reilly ◽  
André d’Avignon ◽  
Pramit Biswas ◽  
...  
Keyword(s):  
Silica Nanoparticles ◽  
Sol Gel ◽  
Water Soluble ◽  
Core Shell ◽  
Facile Synthesis ◽  
Sol Gel Process ◽  
Controllable Size

Hybrid spiropyran–silica nanoparticles with a core-shell structure: sol–gel synthesis and photochromic properties

2010 ◽  
Vol 20 (42) ◽  
pp. 9370 ◽  
Author(s):  
Joachim Allouche ◽  
Aurélie Le Beulze ◽  
Jean-Charles Dupin ◽  
Jean-Bernard Ledeuil ◽  
Sylvie Blanc ◽  
...  
Keyword(s):  
Silica Nanoparticles ◽  
Shell Structure ◽  
Sol Gel ◽  
Core Shell ◽  
Photochromic Properties ◽  
Core Shell Structure ◽  
Sol Gel Synthesis
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