Journal ArticleDOI
Atomically Precise Colloidal Metal Nanoclusters and Nanoparticles: Fundamentals and Opportunities
Reads0
Chats0
TLDR
This review summarizes the major progress in the field, including the principles that permit atomically precise synthesis, new types of atomic structures, and unique physical and chemical properties ofatomically precise nanoparticles, as well as exciting opportunities for nanochemists to understand very fundamental science of colloidal nanoparticles.Abstract:
Colloidal nanoparticles are being intensely pursued in current nanoscience research. Nanochemists are often frustrated by the well-known fact that no two nanoparticles are the same, which precludes the deep understanding of many fundamental properties of colloidal nanoparticles in which the total structures (core plus surface) must be known. Therefore, controlling nanoparticles with atomic precision and solving their total structures have long been major dreams for nanochemists. Recently, these goals are partially fulfilled in the case of gold nanoparticles, at least in the ultrasmall size regime (1–3 nm in diameter, often called nanoclusters). This review summarizes the major progress in the field, including the principles that permit atomically precise synthesis, new types of atomic structures, and unique physical and chemical properties of atomically precise nanoparticles, as well as exciting opportunities for nanochemists to understand very fundamental science of colloidal nanoparticles (such as the s...read more
Citations
More filters
Journal ArticleDOI
Different Types of Ligand Exchange Induced by Au Substitution in a Maintained Nanocluster Template
TL;DR: This work has shown that Ag40 and AuAg39 NCs can serve as chiral amplifiers for testing the ee values of 2-chloropropionic acid, ibuprofen, naproxen, and isoleucine with high sensitivity.
Journal ArticleDOI
Internalization of a Preformed Atomically Precise Silver Cluster in Proteins by Multistep Events and Emergence of Luminescent Counterparts Retaining Bioactivity
Debasmita Ghosh,Mohammad Bodiuzzaman,Anirban Som,Sebastian Raja,Ananya Baksi,Atanu Ghosh,Jyotirmoy Ghosh,Akshayaa Ganesh,Priyanka Samji,Sundarasamy Mahalingam,Devarajan Karunagaran,Thalappil Pradeep +11 more
TL;DR: In this article, a new synthetic protocol is introduced which preserves the secondary structure of protecting proteins encapsulating a luminescent atomically-precise silver cluster, without using any reducing agent, which results in minimal alteration of the protein structure during cluster growth.
Journal ArticleDOI
New Perspectives on the Electronic and Geometric Structure of Au70S20(PPh3)12 Cluster: Superatomic-Network Core Protected by Novel Au12(µ3-S)10 Staple Motifs.
TL;DR: The electronic structure of Au70S20(PPh3)12 cluster has a network of fifteen 2e-superatoms, abbreviated as 15 × 2e SAN, and a novel extended staple motif [Au12(µ3-S)10]8− was discovered, which is a half-cage with ten µ 3-S units and six teeth that enriches the family of staple motifs in ligand-protected Au clusters.
Journal ArticleDOI
Programmable two-dimensional nanocrystals assembled from POSS-containing peptoids as efficient artificial light-harvesting systems.
Mingming Wang,Yang Song,Yang Song,Shuai Zhang,Shuai Zhang,Xin Zhang,Xiaoli Cai,Yuehe Lin,James J. De Yoreo,James J. De Yoreo,Chun-Long Chen,Chun-Long Chen +11 more
TL;DR: In this paper, a series of organic-inorganic hybrid peptoids were synthesized by using polyhedral oligomeric silsesquioxane (POSS) nanoclusters as side chains at a variety of backbone locations.
Journal ArticleDOI
Nanozymes-Hitting the Biosensing "Target".
TL;DR: Nanozymes are a class of artificial enzymes that have dimensions in the nanometer range and can be composed of simple metal and metal oxide nanoparticles, metal nanoclusters, dots (both quantum and carbon), nanotubes, nanowires, or multiple metal-organic frameworks (MOFs).
References
More filters
Book
Introduction to solid state physics
TL;DR: In this paper, the Hartree-Fock Approximation of many-body techniques and the Electron Gas Polarons and Electron-phonon Interaction are discussed.
Journal ArticleDOI
A study of the nucleation and growth processes in the synthesis of colloidal gold
TL;DR: In this paper, a preliminary survey with the electron microscope of various preparations of colloidal gold, a study was made of the process of nucleation and growth in gold colloids, and it was shown that nucleating agents may be identified with reducing agents which form a mixed polymer with chlorauric ion before the reduction to the nucleus takes place.
Journal ArticleDOI
Synthesis of thiol-derivatised gold nanoparticles in a two-phase liquid-liquid system
TL;DR: Using two-phase reduction of AuCl4 by sodium borohydride in the presence of an alkanethiol, solutions of 1-3 nm gold particles bearing a surface coating of thiol have been prepared and characterised; this novel material can be handled as a simple chemical compound as mentioned in this paper.
Journal ArticleDOI
A DNA-based Method for Rationally Assembling Nanoparticles Into Macroscopic Materials
TL;DR: A method for assembling colloidal gold nanoparticles rationally and reversibly into macroscopic aggregates by using the specificity of DNA interactions to direct the interactions between particles of different size and composition is described.