Surfaces and Interfaces of Liquid Metal Core–Shell Nanoparticles under the Microscope

摘要

Abstract >Eutectic gallium indium (EGaIn), a Ga‐based liquid metal alloy holds great promise for designing next‐generation core–shell nanoparticles (CSNs). A shearing‐assisted ligand‐stabilization method has shown promise as a synthetic method for these CSNs; however, determining the role of the ligand on stabilization demands an understanding of the surface chemistry of the ligand–nanoparticle interface. EGaIn CSNs are created and functionalized with aliphatic carboxylates of different chain length, allowing a fundamental investigation on ligand stabilization of EGaIn CSNs. Raman and diffuse reflectance Fourier transform spectroscopies (DRIFTS) confirm reaction of the ligand with the oxide shell of the EGaIn nanoparticles. Changing the length of the alkyl chain in the aliphatic carboxylates (C2–C18) may influence the size and structural stability of EGaIn CSNs, which is easily monitored using atomic force microscopy (AFM). No matter how large the carboxylate ligand, there is no obvious effect on the size of the EGaIn CSNs, except the particle size getting more uniform when coated with longer chain carboxylates. The AFM force–distance measurements are used to measure the stiffness of the carboxylate‐coated EGaIn CSNs. In corroboration with DRIFTS analysis, the stiffness studies show that the alkyl chains undergo conformational changes upon compression. </abstract> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> <div class="translation abstracttxt"> <span class="zhankaihshouqi fivelineshidden" id="abstract"> <span>机译：</span><Abstract Type =“Main”XML：Lang =“en”> <标题类型=“main”>抽象</ title> >共晶镓铟（Egain），基于GA的液态金属合金对设计下一代核心壳纳米颗粒（CSN）具有很大的承担。剪切辅助配体稳定方法已作为这些CSN的合成方法所示。然而，确定配体对稳定化的作用需要了解配体 - 纳米颗粒界面的表面化学。用不同链长的脂族羧酸酯产生和官能化CSN，允许对EGA1 CSN的配体稳定化的基本研究。拉曼和漫反射率傅里叶变换光谱（漂移）确认配体与Egain纳米颗粒的氧化物壳的反应。改变脂族羧酸盐（C2-C18）中的烷基链的长度可以影响EGAIN CSN的尺寸和结构稳定性，其易于使用原子力显微镜（AFM）来监测。无论羧酸盐配体多大，除了在涂覆长链羧酸盐时均匀均匀的粒径外，没有明显的效果。 AFM力距离测量用于测量羧酸酯涂覆的EGAIN CSN的刚度。在漂移分析中的核化中，刚度研究表明，烷基链在压缩时经历了一致性变化。</ p> </摘要> </span> <span class="z_kbtn z_kbtnclass hoverxs" style="display: none;">展开▼</span> </div> </div> <div class="record"> <h2 class="all_title" id="enpatent33" > 著录项</h2> <ul> <li> <span class="lefttit">来源</span> <div style="width: 86%;vertical-align: text-top;display: inline-block;"> <a href='/journal-foreign-28901/'>《Particle & Particle Systems Characterization: Measurement and Description of Particle Properties and Behavior in Powders and Other Disperse Systems 》</a> <b style="margin: 0 2px;">|</b><span>2020年第5期</span><b style="margin: 0 2px;">|</b> <span>共9页</span> </div> </li> <li> <div class="author"> <span class="lefttit">作者</span> <p id="fAuthorthree" class="threelineshidden zhankaihshouqi"> </p> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zkzz" style="display: none;">展开▼</span> </div> </li> <li> <div style="display: flex;"> <span class="lefttit">作者单位</span> <div style="position: relative;margin-left: 3px;max-width: 639px;"> <div class="threelineshidden zhankaihshouqi" id="fOrgthree"> </div> <span class="z_kbtnclass z_kbtnclassall hoverxs" id="zhdw" style="display: none;">展开▼</span> </div> </div> </li> <li> <span class="lefttit">收录信息</span> <span style="width: 86%;vertical-align: text-top;display: inline-block;"></span> </li> <li> <span class="lefttit">原文格式</span> <span>PDF</span> </li> <li> <span class="lefttit">正文语种</span> <span>eng</span> </li> <li> <span class="lefttit">中图分类</span> <span> <a href="https://www.zhangqiaokeyan.com/clc/6960.html" title="特种结构材料">特种结构材料 ;</a></span> </li> <li class="antistop"> <span class="lefttit">关键词</span> <p style="width: 86%;vertical-align: text-top;"> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=eutectic gallium indium&option=203" rel="nofollow">eutectic gallium indium;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=ligand–nanoparticle interface&option=203" rel="nofollow">ligand–nanoparticle interface;</a> <a style="color: #3E7FEB;" href="/search.html?doctypes=4_5_6_1-0_4-0_1_2_3_7_9&sertext=liquid metal core–shell nanoparticles&option=203" rel="nofollow">liquid metal core–shell nanoparticles;</a> </p> <div class="translation"> 机译：共晶镓铟;配体 - 纳米粒子界面;液态金属芯 - 壳纳米粒子; 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style="display: none;"> <li> <div> <b>1. </b><a class="enjiyixqcontent" href="/patent-detail/06120104177749.html">半导体纳米粒子和芯/壳型半导体纳米粒子</a> <b>[P]</b> . <span> 中国专利： CN111556850A </span> <span> . 2020-08-18</span> </div> </li> <li> <div> <b>2. </b><a class="enjiyixqcontent" href="/patent-detail/06120105141799.html">在要在书芯粘挂机中在书壳中粘挂的书芯的涂胶的外表面上摩配书壳的装置</a> <b>[P]</b> . <span> 中国专利： CN1955011A </span> <span> . 2007-05-02</span> </div> </li> <li> <div> <b>3. </b><a class="enjiyixqcontent" href="/patent-detail/06130409790500.html">Core shell superparamagnetic iron cobalt alloy nanoparticles with functional metal silicate core shell interface and a magnetic core containing the nanoparticles</a> <b>[P]</b> . <span> 外国专利：  US9800095B2 </span> <span> . 2017-10-24</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：具有功能性金属硅酸盐核壳界面和包含该纳米颗粒的磁核的核壳超顺磁性铁钴合金纳米颗粒 </span> </p> </li> <li> <div> <b>4. </b><a class="enjiyixqcontent" href="/patent-detail/06130412579549.html">Core shell superparamagnetic iron oxide nanoparticles with functional metal silicate core shell interface and a magnetic core containing the nanoparticles</a> <b>[P]</b> . <span> 外国专利：  US9390845B2 </span> <span> . 2016-07-12</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: initial;text-overflow: initial;overflow: initial;"> <span>机译：具有功能性金属硅酸盐核壳界面和包含该纳米颗粒的磁核的核壳超顺磁性氧化铁纳米粒子 </span> </p> </li> <li> <div> <b>5. </b><a class="enjiyixqcontent" href="/patent-detail/06130412515849.html">CORE SHELL SUPERPARAMAGNETIC IRON OXIDE NANOPARTICLES WITH FUNCTIONAL METAL SILICATE CORE SHELL INTERFACE AND A MAGNETIC CORE CONTAINING THE NANOPARTICLES</a> <b>[P]</b> . <span> 外国专利：  US2015357102A1 </span> <span> . 2015-12-10</span> </div> <p class="zwjiyix translation" style="max-width: initial;height: auto;word-break: break-all;white-space: 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