Porous-wall hollow glass microspheres as novel potential nanocarriers for biomedical applications.
Porous-wall hollow glass microspheres as novel potential nanocarriers for biomedical applications.
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DOI:
10.1016/j.nano.2009.06.004
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发表时间:
2010-02
影响因子:
5.4
通讯作者:
Dynan, William S.
中科院分区:
文献类型:
--
作者:
Li, Shuyi;Nguyen, Lynsa;Xiong, Hairong;Wang, Meiyao;Hu, Tom C. -C.;She, Jin-Xiong;Serkiz, Steven M.;Wicks, George G.;Dynan, William S.
关键词:
Porous-wall hollow glass microspheres (PW-HGMs) are a novel form of glass material consisting of a 10 to 100 micron-diameter hollow central cavity surrounded by a 1 micron-thick silica shell. A tortuous network of nanometer-scale channels completely penetrates the shell. We show here that these channels promote size-dependent uptake and controlled release of biological molecules in the 3–8 nm range, including antibodies and a modified single-chain antibody variable fragment (scFv). In addition, a 6 nm (70 kDa) dextran can be used to gate the porous walls, facilitating controlled release of an internalized small interfering RNA. PW-HGMs remained in place after mouse intratumoral injection, suggesting a possible application for the delivery of anti-cancer drugs. The combination of a hollow central cavity that can carry soluble therapeutic agents with mesoporous walls for controlled release is a unique characteristic that distinguishes PW-HGMs from other glass materials for biomedical applications.
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影响因子:
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作者:
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通讯作者:
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DOI:
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发表时间:
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