Relating Mobility of dsRNA in Nanoporous Silica Particles to Loading and Release Behavior

2021 ◽  
Author(s):  
Shanshan Zhou ◽  
Emily A. Nadeau ◽  
M. Arif Khan ◽  
Bruce A. Webb ◽  
Stephen E. Rankin ◽  
...  
Keyword(s):  
Silica Particles ◽  
Nanoporous Silica ◽  
Release Behavior

Controlled Ion Release Property of Glass Ionomer Cement Containing Nanoporous Silica Particles

2016 ◽  
Vol 720 ◽  
pp. 17-20
Author(s):  
Ko Nakanishi ◽  
Yosuke Bando ◽  
Tomohiko Katsurayama ◽  
Shino Morimoto ◽  
Shigeaki Abe ◽  
...  
Keyword(s):  
Glass Ionomer Cement ◽  
Silica Particles ◽  
Nanoporous Silica ◽  
Glass Ionomer Cements ◽  
Glass Ionomer ◽  
Release Behavior ◽  
Ion Release ◽  
Dye Release ◽  
Release Property ◽  
Ionomer Cement

Controlled ion release property of nanoporous silica particles (NPS) were investigated using cationic fluorescent dye, rhodamine B. The dye was charged into a glass ionomer cements (GIC) pellet containing the particles and then the pellet were immersed into distilled water. The dye-release behavior was observed using a UV-vis. spectrophotometer. GIC containing NPS can release the dye for a couple of weeks, where as other samples released it only a few days. This result suggests that NPS has excellent sustained dye-release property.

Ultrahigh Surface Area Nanoporous Silica Particles via an Aero-Sol−Gel Process

Langmuir ◽  
2004 ◽  
Vol 20 (7) ◽  
pp. 2523-2526 ◽  
Author(s):  
S. H. Kim ◽  
B. Y. H. Liu ◽  
M. R. Zachariah
Keyword(s):  
Surface Area ◽  
Sol Gel ◽  
Silica Particles ◽  
Nanoporous Silica ◽  
Sol Gel Process

Clofazimine encapsulation in nanoporous silica particles for the oral treatment of antibiotic-resistant Mycobacterium tuberculosis infections

Nanomedicine ◽  
2017 ◽  
Vol 12 (8) ◽  
pp. 831-844 ◽  
Author(s):  
Sabrina Valetti ◽  
Xin Xia ◽  
Joana Costa-Gouveia ◽  
Priscille Brodin ◽  
Marie-Françoise Bernet-Camard ◽  
...  
Keyword(s):  
Mycobacterium Tuberculosis ◽  
Oral Treatment ◽  
Silica Particles ◽  
Nanoporous Silica ◽  
Antibiotic Resistant

Selective binding and enrichment for low-molecular weight biomarker molecules in human plasma after exposure to nanoporous silica particles

PROTEOMICS ◽  
2006 ◽  
Vol 6 (11) ◽  
pp. 3243-3250 ◽  
Author(s):  
Rosa Terracciano ◽  
Marco Gaspari ◽  
Flaviano Testa ◽  
Luigi Pasqua ◽  
Pierosandro Tagliaferri ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Human Plasma ◽  
Silica Particles ◽  
Nanoporous Silica ◽  
Low Molecular Weight ◽  
Selective Binding ◽  
Biomarker Molecules

Deposition of a titania layer on spherical porous silica particles and their nanostructure-induced vapor sensing properties

Nanoscale ◽  
2017 ◽  
Vol 9 (43) ◽  
pp. 16791-16799 ◽  
Author(s):  
K. Shiba ◽  
T. Takei ◽  
G. Yoshikawa ◽  
M. Ogawa
Keyword(s):  
Porous Silica ◽  
Silica Particles ◽  
Spherical Particles ◽  
Nanoporous Silica ◽  
Sensing Properties ◽  
Vapor Sensing ◽  
Porous Titania ◽  
Titania Layer

A porous titania layer with different nanostructures was formed on monodispersed nanoporous silica spherical particles to demonstrate unique sensitive/selective vapor sensing properties.

Electric Charge Dependence of Controlled Dye-Release Behavior in Glass Ionomer Cement Containing Nano-Porous Silica Particles

2018 ◽  
Vol 18 (1) ◽  
pp. 75-79 ◽  
Author(s):  
Yosuke Bando ◽  
Ko Nakanishi ◽  
Shigeaki Abe ◽  
Shuichi Yamagata ◽  
Yasuhiro Yoshida ◽  
...  
Keyword(s):  
Electric Charge ◽  
Glass Ionomer Cement ◽  
Porous Silica ◽  
Silica Particles ◽  
Glass Ionomer ◽  
Release Behavior ◽  
Dye Release ◽  
Charge Dependence ◽  
Ionomer Cement

pH-Responsive Model Drug Release from Silica-Poly(methacrylic acid) Interpenetrating Gel Hybrids

2001 ◽  
Vol 16 (5) ◽  
pp. 409-418 ◽  
Author(s):  
Kazuya Suzuki ◽  
Takeshi Yumura ◽  
Yuko Tanaka ◽  
Mitsuru Akashi
Keyword(s):  
Methacrylic Acid ◽  
Porous Silica ◽  
Silica Particles ◽  
Release Behavior ◽  
Stimuli Responsive ◽  
Ph Responsive ◽  
The Core ◽  
Ph Values ◽  
Brilliant Blue Fcf ◽  
Model Drug

Stimuli-responsive gel was hybridized with porous silica particles, by radical polymerization of methacrylic acid (MA) in the presence of a crosslinker. Brilliant Blue FCF (BBFCF) was encapsulated in the core of the particle and its release behavior from the particle under specific stimuli was studied. PMA gel hybridized silica particles showed specific release behavior at different pH values while normal silica particles released BBFCF at the same rate at all pHs.

Comparison of the performance of pyridine-functionalized nanoporous silica particles for the extraction of gold(III) from natural samples

2012 ◽  
Vol 178 (3-4) ◽  
pp. 367-372 ◽  
Author(s):  
Elahe Moazzen ◽  
Nasser Daei ◽  
Seyyedeh Mahdieh Hosseini ◽  
Homeira Ebrahimzadeh ◽  
Azam Monfared ◽  
...  
Keyword(s):  
Silica Particles ◽  
Nanoporous Silica

Increased fracture toughness in nanoporous silica–polyimide matrix composites

2001 ◽  
Vol 16 (7) ◽  
pp. 1975-1981 ◽  
Author(s):  
Shiling Ruan ◽  
John J. Lannutti ◽  
Stan Prybyla ◽  
Robert R. Seghi
Keyword(s):  
Fracture Toughness ◽  
Sol Gel ◽  
Porous Silica ◽  
Silica Particles ◽  
Nanoporous Silica ◽  
Matrix Composites ◽  
Silica Powder ◽  
Crack Pinning ◽  
Cure Temperature ◽  
Polyimide Matrix

Silica–polyimide nanocomposites were prepared by hot-pressing mixtures of polyimide and highly porous silica powder. The silica powder was produced using a sol-gel process that generates pores as small as 15 Å. The effects of loading, cure, and post-cure temperature on fracture toughness were investigated. The addition of silica particles improved the fracture toughness from 0.5 to a maximum of 1.9 MPa m0.5. However, fracture toughness dropped at silica weight percentages ≥30%. The cure and post-curing temperatures have a strong influence on toughness; post-curing exposure ≥400 °C reduced toughness. Transmission electron microscopy examination of the fracture surfaces indicated that the toughness improvements may occur at the nanometer scale due to crack pinning and branching induced by the nanoporous silica particles.

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