Journal ArticleDOI
Tailoring the photoluminescence of atomically precise nanoclusters.
Xi Kang,Manzhou Zhu +1 more
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TLDR
Promising applications of metal nanoclusters are reviewed, with particular focus on their potential to impact the fields of chemical sensing, bio-imaging, and bio-labeling, and scope for improvements and future perspectives of these novel nanomaterials are highlighted.Abstract:
Due to their atomically precise structures and intriguing chemical/physical properties, metal nanoclusters are an emerging class of modular nanomaterials. Photo-luminescence (PL) is one of their most fascinating properties, due to the plethora of promising PL-based applications, such as chemical sensing, bio-imaging, cell labeling, phototherapy, drug delivery, and so on. However, the PL of most current nanoclusters is still unsatisfactory-the PL quantum yield (QY) is relatively low (generally lower than 20%), the emission lifetimes are generally in the nanosecond range, and the emitted color is always red (emission wavelengths of above 630 nm). To address these shortcomings, several strategies have been adopted, and are reviewed herein: capped-ligand engineering, metallic kernel alloying, aggregation-induced emission, self-assembly of nanocluster building blocks into cluster-based networks, and adjustments on external environment factors. We further review promising applications of these fluorescent nanoclusters, with particular focus on their potential to impact the fields of chemical sensing, bio-imaging, and bio-labeling. Finally, scope for improvements and future perspectives of these novel nanomaterials are highlighted as well. Our intended audience is the broader scientific community interested in the fluorescence of metal nanoclusters, and our review hopefully opens up new horizons for these scientists to manipulate PL properties of nanoclusters. This review is based on publications available up to December 2018.read more
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Journal ArticleDOI
Extra Silver Atom Triggers Room-Temperature Photoluminescence in Atomically Precise Radarlike Silver Clusters
TL;DR: Based on two perfect metal cluster models with atomic-precis i on structure, this work reveals that clusteroluminescence induced by specific metal atom aggregations could be a critical approach for enhancing photoluminecence from metal clusters at room temperature.
Journal ArticleDOI
Intercluster Reactions Resulting in Silver-Rich Trimetallic Nanoclusters
Esma Khatun,Papri Chakraborty,Betsy Rachel Jacob,Ganesan Paramasivam,Mohammad Bodiuzzaman,Wakeel Ahmed Dar,Thalappil Pradeep +6 more
TL;DR: In this paper, an intercluster reaction leading to new trimetallic nanoclusters (NCs) using bimetallic and monometallic NCs as reactants is presented.
Journal ArticleDOI
Near-Infrared-Light-Assisted in Situ Reduction of Antimicrobial Peptide-Protected Gold Nanoclusters for Stepwise Killing of Bacteria and Cancer Cells
TL;DR: A simple near infrared (NIR)-light assisted method for in situ reduction of antimicrobial peptide (AMP)-protected AuNCs and this material system provides an all-in-one strategy for stepwise killing of cancer cells and bacterial infection.
Journal ArticleDOI
Engineering Metal Nanoclusters for Targeted Therapeutics: From Targeting Strategies to Therapeutic Applications
Zhenkun Lin,Nirmal Goswami,Tiantian Xue,Osburg Jin Huang Chai,Hejie Xu,Liu Yuxin,Su Yu,Jianping Xie +7 more
TL;DR: In this review, the design principles of targeting strategies for metal NCs and their composites, including passive and active targeting, and physical and chemical targeting are first discussed and the authors’ perspectives on the challenges and opportunities are provided.
Journal ArticleDOI
Nanocluster growth via “graft-onto”: effects on geometric structures and optical properties
Xi Kang,Shan Jin,Lin Xiong,Xiao Wei,Manman Zhou,Chenwanli Qin,Yong Pei,Shuxin Wang,Manzhou Zhu +8 more
TL;DR: In this article, the concept of "graft-onto" has been exploited to facilitate nanocluster growth on surface structures, and the grafting effect of Ag2(DPPM)Cl2 induces both direct changes on the surface structure (e.g., size growth, structural transformation, and surface rotation) and indirect changes on kernel structure (from a fcc configuration to an icosahedral configuration).
References
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Journal ArticleDOI
Reticular synthesis and the design of new materials
Omar M. Yaghi,Michael O'Keeffe,Nathan W. Ockwig,Hee K. Chae,Hee K. Chae,Mohamed Eddaoudi,Jaheon Kim +6 more
TL;DR: This work has shown that highly porous frameworks held together by strong metal–oxygen–carbon bonds and with exceptionally large surface area and capacity for gas storage have been prepared and their pore metrics systematically varied and functionalized.
Journal ArticleDOI
Aggregation-Induced Emission: Together We Shine, United We Soar!
TL;DR: This paper presents a meta-analysis of the chiral stationary phase transition of Na6(CO3)(SO4)2, a major component of the response of the immune system to Na2CO3.
Journal ArticleDOI
Aggregation-induced emission
TL;DR: In this critical review, recent progress in the area ofAIE research is summarized and typical examples of AIE systems are discussed, from which their structure-property relationships are derived.
Journal ArticleDOI
Shape‐Controlled Synthesis of Metal Nanocrystals: Simple Chemistry Meets Complex Physics?
TL;DR: A comprehensive review of current research activities that center on the shape-controlled synthesis of metal nanocrystals, including a brief introduction to nucleation and growth within the context of metal Nanocrystal synthesis, followed by a discussion of the possible shapes that aMetal nanocrystal might take under different conditions.
Journal ArticleDOI
Nanostructures in Biodiagnostics
Nathaniel L. Rosi,Chad A. Mirkin +1 more
TL;DR: Nathaniel L. Rosi focuses on the rational assembly of DNA-modified nanostructures into larger-scale materials and their roles in biodiagnostic screening for nucleic acids.