Lysozyme-mediated fabrication of well-defined core–shell nanoparticle@metal–organic framework nanocomposites,Journal of Materials Chemistry A

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Lysozyme-mediated fabrication of well-defined core–shell nanoparticle@metal–organic framework nanocomposites
Journal of Materials Chemistry A ( IF 10.7 ) Pub Date : 2017-09-25 00:00:00 , DOI: 10.1039/c7ta06419e
Ke Wang _{1,

2,

3,

4,

5} , Nan Li _{1,

2,

3,

4,

5} , Xiaoman Hai _{1,

2,

3,

4,

5} , Fuquan Dang _{1,

2,

3,

4,

5}

Affiliation

We report a versatile strategy based on self-assembled lysozymes (LYZs) to prepare core–shell nanocomposites with nanoparticles (NPs) in metal–organic frameworks (MOFs). We first demonstrated that LYZs can readily self-organize into a robust coating layer with abundant functional groups on the surfaces of various NPs, making it possible to mediate the heterogeneous nucleation and growth of MOFs for the structural integration of a broad range of NPs and functional MOFs. Two kinds of core–shell NP@MOF nanocomposites with monocrystalline-shell and polycrystalline-shell structures are obtained depending on the size of the NPs. The readily tunable structures added additional possibilities to tailor the functionalities of the nanocomposites by sandwiching nanostructures between the core and shell. When coupled with soft lithography, the LYZ-based method allows for fabricating the arrays of carbon dot (CD)@Tb-MOFs on a microscope glass slide with micro-sized resolution within minutes, which unlocked a possible opportunity for precisely engineering NP@MOF arrays on solid substrates. The proposed method shows competitive advantages including ease of interfacial functionalization, simple and mild conditions, and structural tunability for constructing NP@MOF nanocomposites, which have great potential applications in many fields such as catalysis, sensors, biomedicine, and tissue engineering.

中文翻译：

溶菌酶介导的明确定义的核-壳纳米粒子@金属-有机骨架纳米复合材料的制备

我们报告了一种基于自组装溶菌酶（LYZs）的通用策略，可在金属有机框架（MOF）中制备具有纳米颗粒（NPs）的核壳纳米复合材料。我们首先证明了LYZ可以很容易地自组织成坚固的涂层，并在各种NP的表面上具有丰富的官能团，这使得介导MOF的异质成核和生长成为可能，从而实现了各种NP和功能性结构的整合。财政部。根据NP的大小，可以得到两种具有单晶壳和多晶壳结构的核-壳NP @ MOF纳米复合材料。通过将纳米结构夹在核和壳之间，易于调节的结构增加了定制纳米复合材料功能的其他可能性。加上软光刻，基于LYZ的方法允许在数分钟内以微型尺寸在显微镜载玻片上制造碳点（CD）@ Tb-MOF阵列，这为在固体基质上精确工程化NP @ MOF阵列开辟了可能的机会。所提出的方法显示出竞争优势，包括易于界面功能化，简单温和的条件以及用于构建NP @ MOF纳米复合材料的结构可调性，在催化，传感器，生物医学和组织工程等许多领域具有巨大的潜在应用。

更新日期：2017-09-25

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