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Free energy change for insertion of charged, monolayer-protected nanoparticles into lipid bilayers.带电的单层保护纳米颗粒插入脂质双层的自由能变化。
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Effect of particle diameter and surface composition on the spontaneous fusion of monolayer-protected gold nanoparticles with lipid bilayers.粒径和表面成分对单层保护金纳米粒子与脂质双层自发融合的影响。
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A solution to the PEG dilemma: efficient bioconjugation of large gold nanoparticles for biodiagnostic applications using mixed layers.PEG 困境的解决方案:使用混合层高效生物偶联大的金纳米粒子用于生物诊断应用。
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Regioselective placement of alkanethiolate domains on tetrahedral and octahedral gold nanocrystals.在四面体形和八面体形金纳米晶体上进行烷硫醇基团的区域选择性定位。
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溶液中功能性肽的表面呈现决定了TAT共轭纳米颗粒的细胞内化效率。

Surface presentation of functional peptides in solution determines cell internalization efficiency of TAT conjugated nanoparticles.

作者信息

Todorova Nevena, Chiappini Ciro, Mager Morgan, Simona Benjamin, Patel Imran I, Stevens Molly M, Yarovsky Irene

机构信息

Health Innovations Research Institute, RMIT University , GPO Box 2476, Melbourne, VIC Australia.

出版信息

Nano Lett. 2014 Sep 10;14(9):5229-37. doi: 10.1021/nl5021848. Epub 2014 Aug 28.

DOI:10.1021/nl5021848
PMID:25157643
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5408925/
Abstract

Functionalizing nanoparticles with cell-penetrating peptides is a popular choice for cellular delivery. We investigated the effects of TAT peptide concentration and arrangement in solution on functionalized nanoparticles' efficacy for membrane permeation. We found that cell internalization correlates with the positive charge distribution achieved prior to nanoparticle encountering interactions with membrane. We identified a combination of solution based properties required to maximize the internalization efficacy of TAT-functionalized nanoparticles.

摘要

用细胞穿透肽对纳米颗粒进行功能化修饰是细胞递送的常用选择。我们研究了溶液中TAT肽浓度和排列对功能化纳米颗粒膜渗透功效的影响。我们发现细胞内化与纳米颗粒与膜相互作用之前实现的正电荷分布相关。我们确定了使TAT功能化纳米颗粒内化功效最大化所需的基于溶液的性质组合。