Using gelatin as protecting agent and organic template to synthesize noble metal nanoparticles and metal nanoparticles@mesoporous silica for SERS and CO oxidation applications

Hsuan Jung Chang, Ying Mei Yang, Chi Chang Lin, Yi Chia Luo, Hsien Chang Chang, Hong-Ping Lin, Yu-Cheng Lin, Chih Yuan Tang, Chin Yen Lin

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

With excellent control of their synthetic compositions and condition, noble metal nanoparticles@mesoporous silicas of large surface area (≈ 300 m 2g-1), large pore size (> 5.0 nm), and high noble metal nanoparticle content (≈ 10 wt.%) have been conveniently prepared using natural polymer gelatin with many amide (-CO-NH2) groups as an organic template of mesoporous silica and a protecting agent for stabilizing Au nanoparticles. This synthetic method is extensive and can be used to prepare Au, Ag, and Ag-Au alloy nanoparticles@mesoporous silicas. Because the metal nanoparticles are accessible to the environment, noble-metal nanoparticles@mesoporous silicas can be used in SERS applications and act as superior catalysts in CO oxidation at high temperatures. In addition, bare Au nanoparticles anchored on a silica matrix can have direct contact with S. aureus cells to enhance the Raman spectrum intensity of S. aureus cells absorbed onto a Au nanoparticles@mesoporous silica.

Original languageEnglish
Pages (from-to)389-396
Number of pages8
JournalSensors and Materials
Volume20
Issue number8
Publication statusPublished - 2008 Dec 1

Fingerprint

Metal nanoparticles
gelatins
Gelatin
Carbon Monoxide
Precious metals
noble metals
Silicon Dioxide
templates
Silica
silicon dioxide
Oxidation
nanoparticles
oxidation
metals
Nanoparticles
Natural polymers
Excipients
Amides
Pore size
Raman scattering

All Science Journal Classification (ASJC) codes

  • Instrumentation
  • Materials Science(all)

Cite this

Chang, Hsuan Jung ; Yang, Ying Mei ; Lin, Chi Chang ; Luo, Yi Chia ; Chang, Hsien Chang ; Lin, Hong-Ping ; Lin, Yu-Cheng ; Tang, Chih Yuan ; Lin, Chin Yen. / Using gelatin as protecting agent and organic template to synthesize noble metal nanoparticles and metal nanoparticles@mesoporous silica for SERS and CO oxidation applications. In: Sensors and Materials. 2008 ; Vol. 20, No. 8. pp. 389-396.
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Using gelatin as protecting agent and organic template to synthesize noble metal nanoparticles and metal nanoparticles@mesoporous silica for SERS and CO oxidation applications. / Chang, Hsuan Jung; Yang, Ying Mei; Lin, Chi Chang; Luo, Yi Chia; Chang, Hsien Chang; Lin, Hong-Ping; Lin, Yu-Cheng; Tang, Chih Yuan; Lin, Chin Yen.

In: Sensors and Materials, Vol. 20, No. 8, 01.12.2008, p. 389-396.

Research output: Contribution to journalArticle

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AU - Chang, Hsuan Jung

AU - Yang, Ying Mei

AU - Lin, Chi Chang

AU - Luo, Yi Chia

AU - Chang, Hsien Chang

AU - Lin, Hong-Ping

AU - Lin, Yu-Cheng

AU - Tang, Chih Yuan

AU - Lin, Chin Yen

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