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Related Experiment Video

Updated: Mar 11, 2026

Preparation of Silica Nanoparticles Through Microwave-assisted Acid-catalysis
09:43

Preparation of Silica Nanoparticles Through Microwave-assisted Acid-catalysis

Published on: December 16, 2013

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Fast nucleation for silica nanoparticle synthesis using a sol-gel method.

Chandra K Dixit1, Snehasis Bhakta1, Ajeet Kumar2

  • 1Department of Chemistry, University of Connecticut, Storrs, Connecticut, USA. chandra.kumar_dixit@uconn.edu chandrakumar.dixit@gmail.com.

Nanoscale
|November 19, 2016
PubMed
Summary

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We developed a rapid 20-minute sol-gel method to synthesize silica particles. This technique allows precise control over silica polymerization, enabling tunable particle sizes and chemiluminescent applications.

Area of Science:

  • Materials Science
  • Nanotechnology
  • Chemical Engineering

Background:

  • Understanding silica particle synthesis mechanisms is crucial for controlling particle properties.
  • Existing methods often require longer synthesis times, limiting fine-tuning capabilities.

Purpose of the Study:

  • To develop a rapid synthesis method for silica particles.
  • To elucidate the mechanism and kinetics of silica polymerization.
  • To demonstrate tunable particle sizes and potential applications.

Main Methods:

  • Utilized a sol-gel process with tetraethyl orthosilicate (TEOS) precursor, ethanol-water solvent, and NaOH catalyst.
  • Modulated the reaction medium to an emulsion to halt polymerization at specific times.
  • Emulsified unreacted TEOS and polysilicic acid chains using supersaturated water.

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Related Experiment Videos

Last Updated: Mar 11, 2026

Preparation of Silica Nanoparticles Through Microwave-assisted Acid-catalysis
09:43

Preparation of Silica Nanoparticles Through Microwave-assisted Acid-catalysis

Published on: December 16, 2013

19.4K
Synthesis and Characterization of Supramolecular Colloids
09:26

Synthesis and Characterization of Supramolecular Colloids

Published on: April 22, 2016

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Generation of Zerovalent Metal Core Nanoparticles Using n-2-aminoethyl-3-aminosilanetriol
08:12

Generation of Zerovalent Metal Core Nanoparticles Using n-2-aminoethyl-3-aminosilanetriol

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Main Results:

  • Successfully synthesized silica particles within 20 minutes under ambient conditions.
  • Achieved precise control over silica polymerization kinetics and particle characteristics.
  • Demonstrated the use of synthesized particles as seeds for controlled growth.
  • Successfully entrapped luminol for chemiluminescent applications.

Conclusions:

  • The developed method offers a rapid and controllable route for silica particle synthesis.
  • The ability to halt the reaction provides deep insights into silica polymerization.
  • Synthesized silica particles show potential for advanced applications, including chemiluminescence.