CHAPTER 7:Noble Metal Clusters in Protein Templates
CHAPTER 7:Noble Metal Clusters in Protein Templates
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第 7 章：蛋白质模板中的贵金属簇
DOI：
10.1039/9781782628514-00169
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发表时间：
2014
期刊：
影响因子：
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通讯作者：
P. L. Xavier
中科院分区：
文献类型：
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作者：
T. Pradeep;Ananya Baksi;P. L. Xavier
贵金属量子团簇（NMQCs）被认为是原子和纳米粒子之间的桥梁。它们的尺寸与电子的费米波长相当，由于量子限制，它们具有离散的能级，这使得它们中的许多在可见区域发光。NMQCs已经在溶液中与各种配体合成，从四十多年前的磷化氢到最近的蛋白质。明亮的发光NMQCs嵌入蛋白质（NMQCs@proteins）制造功能和智能的混合材料，因为蛋白质是功能性的软生物纳米机器。原子团簇科学的跨学科和扩张性在这个新加入的团簇家族中再次显现出来。在这一章中，详细讨论了这种新系统的结构、光物理方面及其应用。蛋白质-金属离子加合物作为模板，原子精确的气相簇已经形成。从批判性的角度来看，这一新兴学科的几个基本问题尚未得到回答，但我们相信，该领域将在理解方面继续发展，并将广泛应用于传感、催化、生物学和医学等多个领域。
Noble metal quantum clusters (NMQCs) are considered to be the bridge between atoms and nanoparticles. They have dimensions comparable to the Fermi wavelength of electrons and have discrete energy levels due to quantum confinement which makes many of them luminescent in the visible region. NMQCs have been synthesized in the solution phase with various ligands, ranging from phosphines over four decades ago, to proteins, in the recent past. Brightly luminescent NMQCs embedded in proteins (NMQCs@proteins) make functional and smart hybrid materials, since proteins are functional soft biological nanomachines. The transdisciplinary and expansive nature of atomic cluster science is once again evident in this new entrant to the cluster family. In this chapter, structural, photo-physical aspects and applications of this new system are discussed in detail. Protein–metal ion adducts act as templates from which atomically precise gas phase clusters have been formed. Looking critically, several fundamental questions are yet to be answered in this emerging discipline, but we believe that the field will continue to evolve in terms of understanding and will be widely applied in several areas of sensing, catalysis, biology and medicine.