Dialysis process for the removal of surfactants to form colloidal mesoporous silica nanoparticles.
Colloidal mesoporous silica nanoparticles less than 20 nm in diameter are prepared by dialysis; this simple surfactant removal route can avoid aggregation by sedimentation-redispersion and remove cationic surfactants while retaining the original colloidal state, which is applicable to the preparation of primary nanoparticles carrying a functional organic substance.
Urata
Chihiro
C
Faculty of Science & Engineering, Waseda University, Ohkubo 3-4-1, Shinjuku, Tokyo 169-8555, Japan.
Aoyama
Yuko
Y
Tonegawa
Akihisa
A
Yamauchi
Yusuke
Y
Kuroda
Kazuyuki
K
D003102:Colloids / Q000737:chemistry; D003956:Dialysis; D053758:Nanoparticles / Q000737:chemistry*; D010316:Particle Size; D016062:Porosity; D012822:Silicon Dioxide / Q000737:chemistry*; D013499:Surface Properties; D013501:Surface-Active Agents / Q000737:chemistry*
D003102:Colloids; D013501:Surface-Active Agents; D012822:Silicon Dioxide