Spherical and tubule nanocarriers for sustained drug release.

Spherical and tubule nanocarriers for sustained drug release.
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DOI:
10.1016/j.coph.2014.10.001
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发表时间:
2014-10
影响因子:
4
通讯作者:
Lvov, Yuri M.
Lvov, Yuri M.
中科院分区:
医学3区
文献类型:
--
作者:
Shutava, Tatsiana G.;Fakhrullin, Rawil F.;Lvov, Yuri M.

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我们讨论的新趋势,层层(LBL)封装的球形和管状核心的直径为50-150 nm,并载有药物。LbL包封的这种核心尺寸减小(从几微米到一百纳米)需要开发超声辅助非洗涤技术和壳PEG化,以在等渗缓冲液和血清中达到2-3 mg/mL浓度的药物纳米载体的高胶体稳定性。对于低可溶性抗癌药物的120-170 nm球形LbL纳米胶囊,囊壳厚度控制药物溶解。至于纳米管载体,我们专注于天然埃洛石粘土纳米管作为LbL封装的核心,允许高载药量并在数十和数百小时内持续释放。通过形成管端塞子实现进一步的药物释放延长。
We discuss new trends in Layer-by-Layer (LbL) encapsulation of spherical and tubular cores of 50–150 nm diameter and loaded with drugs. This core size decrease (from few micrometers to a hundred of nanometers) for LbL encapsulation required development of sonication assistant non-washing technique and shell PEGylation to reach high colloidal stability of drug nanocarriers at 2–3 mg/mL concentration in isotonic buffers and serum. For 120–170 nm spherical LbL nanocapsules of low soluble anticancer drugs, polyelectrolyte shell thickness controls drug dissolution. As for nanotube carriers, we concentrated on natural halloysite clay nanotubes as cores for LbL encapsulation that allows high drug loading and sustains its release over tens and hundreds hours. Further drug release prolongation was reached with formation of the tube-end stoppers.
用于全身性抗癌药物和siRNA的全层纳米颗粒,用于潜在的三阴性乳腺癌治疗。
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