Osmotic Shock-Triggered Assembly of Highly Charged, Nanoparticle-Supported Membranes.

Osmotic Shock-Triggered Assembly of Highly Charged, Nanoparticle-Supported Membranes.
复制标题

渗透压冲击触发高电荷纳米颗粒支撑膜的组装。

DOI:
--
复制
发表时间:
2018
期刊:
影响因子:
3.9
通讯作者:
Ka Yee C. Lee
Ka Yee C. Lee
中科院分区:
化学2区
文献类型:
--
作者:
Peter J. Chung;H. Hwang;K. Dasbiswas;Alessandra Leong;Ka Yee C. Lee

文献摘要

参考文献

被引文献

相似文献

球形纳米颗粒支撑的脂质双层(SSLB)将精密纳米颗粒工程与生物相容性界面结合联合收割机,用于各种应用,从药物递送平台到膜蛋白的结构探针。尽管囊泡和较大二氧化硅纳米颗粒(>100 nm)的本体自发组装稳健地产生SSLB,但对于较小纳米颗粒(<100 nm),其仅在低电荷密度囊泡的情况下发生,这是增加SSLB效用和功效的基本障碍。在这里,通过整体安装和低温透射电子显微镜,我们证明,混合磁性装载囊泡与较小的纳米粒子强劲驱动形成SSLB与高膜电荷密度(高达60%阴离子脂质或50%阳离子脂质)。我们表明,SSLB形成所需的渗透压负荷主要是绝对膜电荷密度的函数,并且不是脂质头基依赖性的,提供了一种可推广的,可调的方法,用于批量生产高度弯曲和带电的SSLB与各种膜组合物。
Spherical nanoparticle-supported lipid bilayers (SSLBs) combine precision nanoparticle engineering with biocompatible interfaces for various applications, ranging from drug delivery platforms to structural probes for membrane proteins. Although the bulk, spontaneous assembly of vesicles and larger silica nanoparticles (>100 nm) robustly yields SSLBs, it will only occur with low charge density vesicles for smaller nanoparticles (<100 nm), a fundamental barrier in increasing SSLB utility and efficacy. Here, through whole mount and cryogenic transmission electron microscopy, we demonstrate that mixing osmotically loaded vesicles with smaller nanoparticles robustly drives the formation of SSLBs with high membrane charge density (up to 60% anionic lipid or 50% cationic lipid). We show that the osmolyte load necessary for SSLB formation is primarily a function of absolute membrane charge density and is not lipid headgroup-dependent, providing a generalizable, tunable approach toward bulk production of highly curved and charged SSLBs with various membrane compositions.
DOI: 10.1038/nnano.2012.212
发表时间: 2013-01
影响因子: 38.3
作者:
通讯作者: --
DOI: 10.1016/s0006-3495(03)70055-1
发表时间: 2003-05-01
影响因子: 3.4
作者:
Lin, AJ;Slack, NL;Safinya, CR
通讯作者: Safinya, CR
DOI: 10.1021/jacs.5b08303
发表时间: 2015-11-11
影响因子: 15
作者:
Fu R;Gill RL Jr;Kim EY;Briley NE;Tyndall ER;Xu J;Li C;Ramamurthi KS;Flanagan JM;Tian F
通讯作者: Tian F
DOI: 10.1021/ja808018y
发表时间: 2009-02-04
影响因子: 15
作者:
Liu J;Stace-Naughton A;Jiang X;Brinker CJ
通讯作者: Brinker CJ
DOI: 10.1016/0005-2736(93)90319-u
发表时间: 1993-04
期刊: Biochimica et biophysica acta
影响因子: --
作者:
D. Zhelev;David C. Needham
通讯作者: D. Zhelev;David C. Needham