ZnO nanoparticle interactions with phospholipid monolayers.
ZnO nanoparticle interactions with phospholipid monolayers.
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ZnO 纳米颗粒与磷脂单层的相互作用。
DOI：
10.1016/j.jcis.2013.05.010
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发表时间：
2013
影响因子：
9.9
通讯作者：
A. Nelson
中科院分区：
文献类型：
--
作者：
Alexandre Vakurov;Guillermo Mokry;R. Drummond;Rachel Wallace;C. Svendsen;A. Nelson
研究了氧化锌纳米分散体与二油基磷脂酰胆碱（DOPC）单分子膜的相互作用。利用快速循环伏安法（RCV）研究了ZnO-DOPC相互作用对电容电流峰特征的影响，这些峰代表了两个电位诱导的相变。结果表明：(1)市面上常见的纳米粒子与DOPC包覆汞电极的相互作用顺序为NanoTek>NanoShield>金属基。这种相互作用的程度与氧化锌颗粒大小成反比，其中金属基纳米颗粒强烈聚集。制造商添加的非离子分散剂对NanoTek和NanoShield相互作用的贡献是不确定的。(2)新制备的纳米ZnO纳米颗粒（~ 25nm）与DOPC涂层的汞电极相互作用并穿透。纳米粒子的聚集、磷酸氧化锌涂层和黄腐酸氧化锌涂层使ZnO - dopc相互作用最小化。(3)内部合成的初级粒径小于Nanosun的ZnO纳米颗粒（约6nm）与DOPC涂层汞电极有很强的相互作用，但没有证据表明纳米颗粒在DOPC单层中渗透。即使颗粒聚集到1 ~ 10μm之间，也观察到内部合成的ZnO与DOPC的强相互作用。
Aqueous ZnO nanoparticle dispersions interaction with a dioleoyl phosphatidylcholine (DOPC) monolayer is reported in this paper. ZnO-DOPC interactions were investigated using rapid cyclic voltammetry (RCV) by focusing on the effect of the interactions on the characteristics of the capacitance current peaks representing two potential induced phase transitions. Results showed: – (1) The order of interaction of common commercially sourced nanoparticles with DOPC coated Hg electrodes was NanoTek>NanoShield>metals basis. This extent of interaction was inversely related to the ZnO particle size where the metals basis nanoparticles were strongly aggregated. The contribution of the non-ionic dispersant added by manufacturer to the NanoTek and NanoShield interaction was uncertain. (2) Freshly prepared aqueous Nanosun ZnO nanoparticle (∼25nm) dispersions interacted with and penetrated DOPC coated Hg electrodes. Aggregation of the nanoparticles, coating of the ZnO with phosphate and coating of the ZnO with fulvic acid minimised ZnO–DOPC interaction. (3) In-house synthesised ZnO nanoparticles of lower primary particle size (∼6nm) than Nanosun ZnO nanoparticles interacted strongly with DOPC coated Hg electrodes with no evidence of penetration of the nanoparticle in the DOPC monolayer. Even after considerable aggregation of the particle to between 1 and 10μm, a strong interaction of the in-house synthesised ZnO with DOPC was observed.
影响因子：
5
作者：
Nerea Ormategui;Shengwen Zhang;I. Loinaz;R. Brydson;A. Nelson;A. Vakurov
通讯作者：
Nerea Ormategui;Shengwen Zhang;I. Loinaz;R. Brydson;A. Nelson;A. Vakurov
影响因子：
2.9
作者：
Coldrick, Zachary;Penezic, Abra;Nelson, Andrew
通讯作者：
Nelson, Andrew