Preparation of multifunctional mesoporous silica particles: the use of an amphiphilic silica precursor with latent amine functionality in selective functionalization of the inner surface

2011 ◽  
Vol 21 (24) ◽  
pp. 8766 ◽  
Author(s):  
Min Soo Kim ◽  
Ji Young Chang
Keyword(s):  
Mesoporous Silica ◽  
Silica Particles ◽  
Selective Functionalization ◽  
Inner Surface ◽  
Silica Precursor

Wetting transition in nanochannels for biomimetic free-blocking on-demand drug transport

2018 ◽  
Vol 6 (39) ◽  
pp. 6269-6277 ◽  
Author(s):  
Yaya Cheng ◽  
Xiangyu Jiao ◽  
Liang Zhao ◽  
Yang Liu ◽  
Fang Wang ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Mesoporous Silica ◽  
Silica Nanoparticles ◽  
Drug Delivery System ◽  
Delivery System ◽  
Drug Transport ◽  
Mesoporous Silica Nanoparticles ◽  
Wetting Transition ◽  
On Demand ◽  
Inner Surface

Inspired by aquaporins in nature, herein, a biomimetic free-blocking on-demand drug delivery system is proposed, which is constructed by controlling the wettability of the inner surface of nanochannels on mesoporous silica nanoparticles (MSNs).

Control of Hierarchically Ordered Positive and Negative Replicas of Wood Cellular Structures by Surfactant-Directed Sol-Gel Mineralization

2002 ◽  
Vol 726 ◽  
Author(s):  
Yongsoon Shin ◽  
Jun Liu ◽  
Li-Qiong Wang ◽  
Jeong Ho Chang ◽  
William D. Samuels ◽  
...  
Keyword(s):  
Silicic Acid ◽  
Cell Walls ◽  
Cellular Structure ◽  
Sol Gel ◽  
Ceramic Materials ◽  
Silica Particles ◽  
Low Ph ◽  
Cellular Structures ◽  
Inner Surface

AbstractWe here report the synthesis of ordered ceramic materials with hierarchy produced by an in-situ mineralization of ordered wood cellular structures with surfactant-templated sol-gel at different pH. At low pH, a silicic acid is coated onto inner surface of wood cellular structure and it penetrates into pores left, where degraded lignin and hemicellulose are leached out, to form a positive replica, while at high pH the precipitating silica particles due to fast condensation clog the cells and pit structures to form a negative replica of wood. The calcined monoliths produced in different pHs contain ordered wood cellular structures, multi-layered cell walls, pits, vessels well-preserved with positive or negative contrasts, respectively. The surfactant-templated mineralization produces ordered hexagonal nanopores with 20Å in the cell walls after calcination.

Biotemplated Hollow Mesoporous Silica Particles as Efficient Carriers for Drug Delivery

2021 ◽  
Author(s):  
Marzieh Heidari Nia ◽  
Roya Koshani ◽  
Jose G. Munguia-Lopez ◽  
Ali Reza Kiasat ◽  
Joseph M. Kinsella ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Mesoporous Silica ◽  
Silica Particles ◽  
Hollow Mesoporous Silica
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