Micron-sized biogenic and synthetic hollow mineral spheres occlude additives within single crystals.
Micron-sized biogenic and synthetic hollow mineral spheres occlude additives within single crystals.
复制标题
DOI：
10.1039/d1fd00095k
复制
发表时间：
2022-07-14
影响因子：
3.4
通讯作者：
中科院分区：
文献类型：
--
作者：
在基质单晶中添加添加剂是制备具有可调机械、磁性和光学性能的复合材料的有效策略。然而，可以被吸留的客体材料的类型可能是有限的，因为掺入是一个复杂的过程，这取决于许多因素，包括添加剂与晶体表面的结合、晶体生长速率和添加剂在结晶溶液中的稳定性。特别是，封闭的客人的大小已被限制到几个埃-如单个分子-到几百纳米-如聚合物囊泡和颗粒。在这里，我们提出了一种合成的方法，用于遮挡微米级的物体，包括高复杂性的单细胞生物和方解石单晶内的合成中空方解石球体。这两个物体都可以运输功能性添加剂，包括有机分子和纳米颗粒，否则这些物质不会在方解石中闭塞。因此，这种方法构成了一种通用的方法，使用方解石作为活性化合物的输送系统，同时为它们提供有效的保护，防止可能导致降解的环境因素。正电荷聚合物聚烯丙胺盐酸盐介导的方解石单晶中微米级藻类细胞和方解石空心球的包埋。这两种物体都用于将功能添加剂输送到主体晶格。
Incorporating additives within host single crystals is an effective strategy for producing composite materials with tunable mechanical, magnetic and optical properties. The type of guest materials that can be occluded can be limited, however, as incorporation is a complex process depending on many factors including binding of the additive to the crystal surface, the rate of crystal growth and the stability of the additives in the crystallisation solution. In particular, the size of occluded guests has been restricted to a few angstroms – as for single molecules – to a few hundred nanometers – as for polymer vesicles and particles. Here, we present a synthetic approach for occluding micrometer-scale objects, including high-complexity unicellular organisms and synthetic hollow calcite spheres within calcite single crystals. Both of these objects can transport functional additives, including organic molecules and nanoparticles that would not otherwise occlude within calcite. Therefore, this method constitutes a generic approach using calcite as a delivery system for active compounds, while providing them with effective protection against environmental factors that could cause degradation. Occlusion of micron-sized algae cells and calcitic hollow spheres within calcite single crystals, mediated by the positively charged polymer poly(allylamine hydrochloride). Both objects are used to transport functional additives to the host lattice.
登录
查看更多内容
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：
29.4
作者：
Brif, Anastasia;Ankonina, Guy;Pokroy, Boaz
通讯作者：
Pokroy, Boaz
影响因子：
15.1
作者：
Fujiwara, Masahiro;Shiokawa, Kurni;Nakahara, Yoshiko
通讯作者：
Nakahara, Yoshiko
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：
62.1
作者：
Gower, Laurie B.
通讯作者：
Gower, Laurie B.