Preparation and properties of silica-coated AgI nanoparticles with a modified Stober method

Yoshio Kobayashi, Kiyoto Misawa, Motohiro Takeda, Noriaki Ohuchi, Atsuo Kasuya, Mikio Konno

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Citations (Scopus)


Silica-coated AgI nanoparticles were prepared with a Stöber method, which was performed with 2.3×10-5 M 3- mercaptopropyltrimethoxysilane, 11 M water, 0.01 M dimethylamine and 0.01 M tetraethyl orthosilicate in the presence of 5×10-4 M AgI nanoparticles that were prepared from silver Perchlorate and potassium iodide. The particles had an AgI core size of ca. 15 nm and a silica shell thickness of ca. 20 nm. The particle colloid that was concentrated up to an AgI concentration as high as 0.4 M with centrifugation was colloidally stable in saline, and exhibited properties of X-ray absorption and X-ray contrasting comparable to a commercial X-ray contrast agent.

Original languageEnglish
Title of host publicationSynthesis and Metrology of Nanoscale Oxides and Thin Films
PublisherMaterials Research Society
Number of pages6
ISBN (Print)9781605608556
Publication statusPublished - 2008
Event2008 MRS Spring Meeting - San Francisco, CA, United States
Duration: 2008 Mar 242008 Mar 28

Publication series

NameMaterials Research Society Symposium Proceedings
ISSN (Print)0272-9172


Other2008 MRS Spring Meeting
Country/TerritoryUnited States
CitySan Francisco, CA

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering


Dive into the research topics of 'Preparation and properties of silica-coated AgI nanoparticles with a modified Stober method'. Together they form a unique fingerprint.

Cite this