TY - GEN
T1 - Preparation and properties of silica-coated AgI nanoparticles with a modified Stober method
AU - Kobayashi, Yoshio
AU - Misawa, Kiyoto
AU - Takeda, Motohiro
AU - Ohuchi, Noriaki
AU - Kasuya, Atsuo
AU - Konno, Mikio
PY - 2008
Y1 - 2008
N2 - 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.
AB - 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.
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U2 - 10.1557/proc-1074-i10-07
DO - 10.1557/proc-1074-i10-07
M3 - Conference contribution
AN - SCOPUS:70350309645
SN - 9781605608556
T3 - Materials Research Society Symposium Proceedings
SP - 18
EP - 23
BT - Synthesis and Metrology of Nanoscale Oxides and Thin Films
PB - Materials Research Society
T2 - 2008 MRS Spring Meeting
Y2 - 24 March 2008 through 28 March 2008
ER -