Positively Charged Additives Facilitate Incorporation in Inorganic Single Crystals.
Positively Charged Additives Facilitate Incorporation in Inorganic Single Crystals.
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带正电荷的添加剂促进无机单晶掺入。
DOI：
10.1021/acs.chemmater.2c00097
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发表时间：
2022-06-14
影响因子：
8.6
通讯作者：
Meldrum, Fiona C.
中科院分区：
文献类型：
--
作者：
Nahi, Ouassef;Broad, Alexander;Kulak, Alexander N.;Freeman, Helen M.;Zhang, Shuheng;Turner, Thomas D.;Roach, Lucien;Darkins, Robert;Ford, Ian J.;Meldrum, Fiona C.
在无机单晶中掺入客体添加剂为创建具有定制性质的纳米复合材料提供了独特的策略。虽然阴离子添加剂已被广泛用于控制晶体的性质，但它们的有效掺入仍然是一个关键挑战。在这里，我们表明，阳离子添加剂是一个很好的替代纳米复合材料的合成，其中它们被证明提供卓越的水平，纳入高达70重量%的带正电荷的氨基酸，聚合物颗粒，金纳米粒子，和银纳米团簇内无机单晶。这种高的添加剂负载赋予纳米复合材料新的功能特性，包括等离子体耦合，明亮的荧光，和表面增强拉曼散射（Sers）。阳离子添加剂也表现出优于它们的酸性对应物，其中它们在更广泛的晶体系统中具有高度活性，这是由于它们在结晶介质中的出色胶体稳定性和对晶体表面的强亲和力。这项工作表明，虽然经常被忽视，阳离子添加剂可以使有价值的结晶添加剂，以创造复合材料与定制的组成-结构-性能关系。这种通用和直接的方法推进了单晶复合材料领域，并为设计和制造具有可调功能特性的新型混合材料提供了令人兴奋的前景。
Incorporation of guest additives within inorganic single crystals offers a unique strategy for creating nanocomposites with tailored properties. While anionic additives have been widely used to control the properties of crystals, their effective incorporation remains a key challenge. Here, we show that cationic additives are an excellent alternative for the synthesis of nanocomposites, where they are shown to deliver exceptional levels of incorporation of up to 70 wt % of positively charged amino acids, polymer particles, gold nanoparticles, and silver nanoclusters within inorganic single crystals. This high additive loading endows the nanocomposites with new functional properties, including plasmon coupling, bright fluorescence, and surface-enhanced Raman scattering (SERS). Cationic additives are also shown to outperform their acidic counterparts, where they are highly active in a wider range of crystal systems, owing to their outstanding colloidal stability in the crystallization media and strong affinity for the crystal surfaces. This work demonstrates that although often overlooked, cationic additives can make valuable crystallization additives to create composite materials with tailored composition–structure–property relationships. This versatile and straightforward approach advances the field of single-crystal composites and provides exciting prospects for the design and fabrication of new hybrid materials with tunable functional properties.
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影响因子：
16.6
作者：
Green, David C.;Ihli, Johannes;Thornton, Paul D.;Holden, Mark A.;Marzec, Bartosz;Kim, Yi-Yeoun;Kulak, Alex N.;Levenstein, Mark A.;Tang, Chiu;Lynch, Christophe;Webb, Stephen E. D.;Tynan, Christopher J.;Meldrum, Fiona C.
通讯作者：
Meldrum, Fiona C.
影响因子：
16.6
作者：
Andersson, M. P.;Dobberschutz, S.;Stipp, S. L. S.
通讯作者：
Stipp, S. L. S.
影响因子：
19
作者：
Ihli, Johannes;Bots, Pieter;Meldrum, Fiona C.
通讯作者：
Meldrum, Fiona C.
影响因子：
19
作者：
Cantaert, Bram;Kim, Yi-Yeoun;Meldrum, Fiona C.
通讯作者：
Meldrum, Fiona C.
影响因子：
29.4
作者：
Brif, Anastasia;Ankonina, Guy;Pokroy, Boaz
通讯作者：
Pokroy, Boaz