Future prospects of gold nanoclusters in hydrogen storage systems and sustainable environmental treatment applications DOI Creative Commons
Sheikha A. Alkhursani, Nadiah Aldaleeli,

Samera Ali Al-Gahtany

и другие.

Nanotechnology Reviews, Год журнала: 2024, Номер 13(1)

Опубликована: Янв. 1, 2024

Abstract Gold nanoclusters (AuNCs), with sizes below 2 nm, have emerged as remarkable nanomaterials exhibiting unique optical, electronic, and chemical properties. Their ultra-small size imparts advantageous characteristics, including high surface area, tunable fluorescence, excellent biocompatibility, making AuNCs highly promising for diverse applications. This article explores recent advancements in leveraging to address critical challenges clean energy storage environmental remediation. For storage, boost the performance of Li-based batteries by facilitating rapid electron transfer kinetics limiting polysulfide shuttling. The review delves into mechanistic insights governing AuNC–hydrogen interactions, various synthetic approaches tailoring AuNCs, their emerging applications advanced electrodes, efficient catalysts, conductive additives enabling improved charge capabilities. Additionally, using plasmonic effects hot carrier generation induced shows tremendous potential photocatalytic water splitting hydrogen fuel production. applications, enable degradation persistent organic pollutants, heavy metal ion detection at part-per-trillion levels, solar-driven purification, relying on plasmon-enhanced processes. However, long-term ecological impacts remain unclear. study thus underscores need further toxicological assessments life cycle analyses promote sustainable AuNC-based technologies through responsible research innovation. Overall, it highlights versatile applicability addressing challenges.

Язык: Английский

A comprehensive review of atomically precise metal nanoclusters with emergent photophysical properties towards diverse applications DOI
Subarna Maity, Sarita Kolay, Sikta Chakraborty

и другие.

Chemical Society Reviews, Год журнала: 2024, Номер unknown

Опубликована: Дек. 13, 2024

Ligand-protected metal nanoclusters are an emerging class of nanomaterials at the interface atomic and plasmonic regimes with unique photophysical electrochemical properties, leading to diverse applications.

Язык: Английский

Процитировано

7
First Crystallographic Evidence of Polarity-Assisted Pseudohalides Controllable Heteroaldazine-Based Coordination Polymers: A New Tributary in Low Level Recognition of Explosive from Real-Day Matrices DOI
Mohit Kumar Chattopadhyay, Pravat Ghorai, Sourav Datta

и другие.

Crystal Growth & Design, Год журнала: 2024, Номер 24(13), С. 5781 - 5793

Опубликована: Июнь 14, 2024

Polarity-assisting pseudohalide-controlled self-assembly of coordination polymers (CPs) is immense significance for structural tunability and quite necessary exploration the links between structure properties. Herein, we have synthesized two polarity-assisting CPs, CPCd-1 CPCd-2 ({[(Cd2(L1)3(NCS)4].CHCl3.CH3CN}n {[Cd(L1)2(N(CN)2)2].CH3CN}n) using newly developed heteroaldazine-based ligand, L1 (L1 = 1-(Z-(Z-(quinolin-4-ylmethylene) hydrazono) methyl) naphthalen-2-ol) at room temperature systematically characterized through single-crystal X-ray diffraction (SC-XRD) methodology. Interestingly, strong continuous π···π intermolecular interactions influence both CPs to ensure high luminescence properties in solvent medium solid phase. Further, these luminous been utilized discriminating recognition lethal explosive 2,4,6-trinitrophenol (TNP). Notably, shows a lower detection limit (193 ppb) toward TNP than (the 401 ppb), which also confirmed by theoretical scenario. In addition, sensing mechanism established via PET-ICT-π···π interaction pathways. Both numerous practical applications ascertained as innovative ones environmental domains. This type with quinoline-napthaldehyde moieties scanty literature that can detect entirely from aqueous

Язык: Английский

Процитировано

4
Efficient Photocatalytic Hydrogen Production Using In‐Situ Polymerized Gold Nanocluster Assemblies DOI Open Access
Debkumar Bera, S. Mahata,

Maitrayee Biswas

и другие.

Small, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 19, 2024

Abstract Gold nanoparticles (NPs) are widely recognized as co‐catalysts in semiconductor photocatalysis for enhancing hydrogen production efficiency, but they often overlooked primary catalysts due to the rapid recombination of excited‐state electrons. This study presents an innovative gold‐based photocatalyst design utilizing situ dopamine polymerization‐guided assembly approach efficient H 2 generation via water splitting. By employing gold superclusters (AuSCs; ≈100 nm) instead ultra‐small nanoclusters (AuNCs; ≈2 before polymerization, unique nanodisk‐like 3D superstructures consisting agglomerated 2D polydopamine (PDA) nanosheets with a high percentage uniformly embedded AuNCs created that exhibit enhanced metallic character post‐polymerization. The thin PDA layer between adjacent functions electron transport medium, directing electrons toward surface and minimizing recombination. Notably, AuSCs@PDA structure shows largest potential difference (26.0 mV) compared AuSCs (≈18.4 NPs (≈14.6 mV), indicating higher population accumulated photo‐generated carriers. As result, achieves photocurrent density, improved photostability, lower charge transfer resistance than NPs, AuSCs, or AuNCs@PDA, highest evolution rate 3.20 mmol g −1 h . work highlights promising polymerization strategy photocatalytic metal nanoclusters.

Язык: Английский

Процитировано

3
Stepwise Surface Ligand Engineering on Gold Nanoclusters: Controlled Photochemistry, Solvation Dynamics and Photosensitization DOI
Arunavo Chatterjee, Ishani Mukherjee,

Mallika Mukherjee

и другие.

ACS Applied Optical Materials, Год журнала: 2025, Номер unknown

Опубликована: Янв. 1, 2025

The effect of stepwise surface modification 6-azo-thiothyamine (ATT) protected AuNCs (ATT-AuNCs), initially with l-Arginine (Arg@ATT-AuNCs) and further cationic surfactants, such as CTAB (CTAB-Arg@ATT-AuNCs) DTAB (DTAB-Arg@ATT-AuNCs), has been reported here. Stepwise ligand engineering (SSLE) significantly slows down the nonradiative transition rate in following order: ATT-AuNCs < Arg@ATT-AuNCs DTAB-Arg@ATT-AuNCs CTAB-Arg@ATT-AuNCs, which increases average radiative lifetime same order. This process also photoluminescence quantum yield (PLQY) trend (2% 41% 58% 72%). There is a simultaneous on solvation dynamics respective where time order CTAB-Arg@ATT-AuNCs. Methyl viologen-derived photosensitization subsequent photoinduced electron transfer (PET) efficiency tested. These are singlet oxygen generators modulate exactly to that PLQY. This, our knowledge, first comprehensive report SSLE control photochemistry, generating propensity.

Язык: Английский

Процитировано

0
Dual-Function Strategy for Enhanced Quercetin Detection Using Terbium(III) Ion-Bound Gold Nanoclusters DOI
Kai‐Yuan Huang, Yanyan Chen, Zhiqiang Yang

и другие.

Analytical Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Фев. 25, 2025

The engineering of metal nanoclusters (NCs) that exhibit bright emissions and high sensing performance under physiological conditions is still a formidable challenge. In this study, we report novel design strategy for realizing excellent NC-based probes by leveraging both concerted proton-coupled electron transfer (PCET) photoinduced (PET) mechanisms, with terbium(III) (Tb3+) ions serving as key modulator. Our findings indicate the binding Tb3+ to 6-aza-2-thiothymidine (ATT) ligand effectively inhibits proton-transfer step in PCET pathway Au10(ATT)6 NCs, giving rise over 10-fold enhancement fluorescence quantum yield 7.2%. Moreover, capped on surface NCs can act bridge facilitate an efficient donor-linker-acceptor type PET reaction from quercetin (Que) excited Au10 core specifically interacting bare 3-OH group. These advancements enable Tb3+/Au10(ATT)6 probe achieve significantly lower limit detection Que, reduced nearly 3 orders magnitude 2.6 nM, while also addressing critical difficulty selectively detecting Que presence its glycosylated analogues. This work opens new opportunities precise control photoluminescence NC at molecular level, potentially promoting development next-generation technologies.

Язык: Английский

Процитировано

0
Pillar[5]arene-based supramolecular assemblies application in artificial light-harvesting systems DOI Creative Commons
Kai‐Peng Zhong, Wei Pang, Zhixiang Yang

и другие.

RSC Advances, Год журнала: 2025, Номер 15(15), С. 11308 - 11318

Опубликована: Янв. 1, 2025

This feature article summarizes the recent advances in construction, modulation and applications of pillar[5]arene-based supramolecular light-harvesting systems.

Язык: Английский

Процитировано

0
A review on application of polymers-based optical chemosensors in glucose detection DOI
Fatemeh Mohammadzadeh,

Marzieh Golshan,

Vahid Haddadi‐Asl

и другие.

European Polymer Journal, Год журнала: 2025, Номер unknown, С. 114008 - 114008

Опубликована: Май 1, 2025

Язык: Английский

Процитировано

0
Size Dependent Liposomal Fusion and H-Bonded Sticky Aggregation Induced by Gold Nanoclusters DOI

Mallika Mukherjee,

Arunavo Chatterjee, Pradipta Purkayastha

и другие.

The Journal of Physical Chemistry B, Год журнала: 2025, Номер unknown

Опубликована: Май 19, 2025

We present a novel approach to quantitatively control liposomal fusion and aggregation, depending upon the surface charge functionalities, using fluorescent gold nanoclusters (AuNCs). show that ligand-protected ultrasmall AuNCs are excellent fusogenic materials follow renal clearance pathways after induction of fusion, especially with dipalmitoylphosphatidylcholine (DPPC) 1,2-dimyristoyl-sn-glycero-3-phosphoglycerol (DMPG) mixed in 3:1 molar ratio mimicking brain cells. interesting photophysics emit from visible near-infrared (NIR) regions quantum confinement effect is directly related Fermi wavelength size NCs. Herein, we have synthesized orange-emitting l-glutathione (GSH) coated Au25(GSH)18 NCs (GSH-AuNCs) be applied on lipid membranes observe property small giant unilamellar vesicles (SUVs GUVs). noticed GSH-AuNCs easily attach DPPC liposomes facilitate complete through favorable mixing. The rate higher (80%) for SUVs compared GUVs, which has been explained experimentally. On contrary, DMPG aggregate, minimal mixing, presence GSH-AuNCs. noted ∼70% efficiency DPPC:DMPG composition (3:1 ratio). This first report aggregation guided by ligand functionalities AuNCs.

Язык: Английский

Процитировано

0
Functional structures assembled based on Au clusters with practical applications DOI
Hao Chen,

Ligang Zou,

Ekram Hossain

и другие.

Biomaterials Science, Год журнала: 2024, Номер 12(17), С. 4283 - 4300

Опубликована: Янв. 1, 2024

The advancement of gold nanoclusters (Au NCs) has given rise to a new era in fabricating functional materials due their controllable morphology, stable optical properties, and excellent biocompatibility. Assemblies based on Au NCs demonstrate significant potentiality constructing multiple structures as acceptable agents applications such sensing, imaging technology, drug delivery systems. In addition, the assembled strategies illustrate integration mechanism between each component while facing material requirement. It is necessary provide supplementary comprehensive reviews (based NCs), which hold promise for could expand range potential applications. This review focuses combination with metals, metal oxides, non-metal materials, are intricately arranged through various interaction forces including covalent bonds coordination, resulting diverse array multifunctional NC assemblies. These assemblies have widespread fields biological imaging, delivery, devices. concludes by highlighting challenges future prospects assemblies, emphasizing importance continued research advance nanomaterial assembly innovation.

Язык: Английский

Процитировано

2
Photoinduced Charge Centralization Quenches the Fluorescence of Conjugation-Fused Tetrazine Labels with Red-to-Near-Infrared Emissions DOI
Tianruo Shen, Xiaogang Liu

Bioconjugate Chemistry, Год журнала: 2024, Номер 35(7), С. 1024 - 1032

Опубликована: Июль 4, 2024

Tetrazine-derived fluorogenic labels are extensively studied for their potential in biological and medical imaging. Nonetheless, the fluorescence quenching mechanism numerous precursors continues to be debated, particularly as wavelengths extend into red near-infrared (NIR) regions. This challenge poses obstacles systematically optimizing fluorogenicity, i.e., achieving red-shifted improved turn-on signals through click reactions. paper highlights significance of photoinduced charge centralization (PCC), a observed tetrazine-fused with integrated π-conjugations. PCC is primarily responsible effects such emitting red-to-NIR spectrum. Drawing from structure-property relationships, this study proposes two molecular design strategies that incorporate constitutional isomerization develop high-performance tetrazine-based labels. These facilitate multiplex imaging following reactions, promising significant advancements bio-orthogonal techniques.

Язык: Английский

Процитировано

2