Article
Chemistry, Inorganic & Nuclear
Arijit Jana, Parvathy M. Unnikrishnan, Ajay K. Poonia, Jayoti Roy, Madhuri Jash, Ganesan Paramasivam, Jan Machacek, Kumaran Nair Valsala Devi Adarsh, Tomas Base, Thalappil Pradeep
Summary: We report the synthesis, structural characterization, and photophysical properties of a propeller-shaped Ag21 nanomolecule with six rotary arms, which exhibits high thermal stability and light-activated structural distortion. The structure and photophysical properties of the nanomolecule are confirmed by various characterization methods.
INORGANIC CHEMISTRY
(2022)
Article
Nanoscience & Nanotechnology
Lei Cao, Mengyan Zhou, Jiaxi Wang, Qiang Zhu, Tingting Liu, Shushu Ding, Ding-Yi Fu
Summary: Gold-silver alloy nanoclusters protected by glutathione S-transferase (GST) were synthesized and exhibited strong fluorescence, enabling sensitive and selective detection of oxytetracycline (OTC). This method showed good anti-interference properties and could be used to establish a simple paper-based analytical method through color change.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Analytical
Afsaneh Orouji, Samira Abbasi-Moayed, Forough Ghasemi, M. Reza Hormozi-Nezhad
Summary: A multicolorimetric nanosensor using AuNRs, silver ions, and ascorbic acid was developed for pH measurement, which allows for pH determination based on color changes. In addition, a paper-based analytical device was introduced for on-site pH screening.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Engineering, Chemical
Liam Yourston, Polikron Dhoqina, Nolan Marshall, Rujani Mahmud, Ethen Kuether, Alexey Viktorovich Krasnoslobodtsev
Summary: Atomically precise silver nanoclusters (AgNCs) are nanostructures consisting of only a few silver atoms. When combined with cytosine-rich single-stranded oligonucleotides, they form DNA-templated silver nanoclusters (DNA-AgNCs) that exhibit highly luminescent and reproducible fluorescent properties. By utilizing nucleic acids as templates, AgNCs can be engineered to extend optical activity, allowing for the rational design of their properties, such as in biosensors for detecting heavy metals like Hg2+.
Article
Chemistry, Multidisciplinary
Hao-Hai Wang, Jianyu Wei, Fahime Bigdeli, Farzaneh Rouhani, Hai-Feng Su, Ling-Xiao Wang, Samia Kahlal, Jean-Francois Halet, Jean-Yves Saillard, Ali Morsali, Kuan-Guan Liu
Summary: The first series of monocarboxylate-protected superatomic silver nanoclusters were synthesized and characterized. These clusters exhibited an unprecedented structure with a [Ag-8@Ag-8](6+) metal core and showed high photothermal conversion performance. The use of monocarboxylates in stabilizing Ag nanoclusters opens up possibilities for introducing various functional groups on their cluster surfaces.
Article
Chemistry, Multidisciplinary
Satya Ranjan Sahoo, Debkumar Bera, Sumit Saha, Nirmal Goswami
Summary: Metal-thiolate complexes exhibit unique photophysical properties and reversible catalytic and photoluminescence properties under different pH conditions, showing potential for applications in pH and CO2 sensing. The complexes demonstrate two distinct structural states at different pH levels, highlighting their versatility for various applications.
Article
Chemistry, Physical
Vinitha Packirisamy, Prabhu Pandurangan
Summary: This study demonstrates a facile synthesis of heterocyclic thiolate protected silver nanoclusters via supramolecular self-assembly, exhibiting unique physicochemical properties. The as-obtained silver nanoclusters show good photo stability and enhanced photoluminescence properties, making them a potential fluorescent turn-off probe for ultrasensitive detection of toxic Hg(LL) ions. The quenching dynamics of the silver nanoclusters in the presence of Hg2+ ions in real samples such as tap water and lactating mother's milk were found to be satisfactory.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Chemistry, Multidisciplinary
Jin Sakai, Sourav Biswas, Tsukasa Irie, Haruna Mabuchi, Taishu Sekine, Yoshiki Niihori, Saikat Das, Yuichi Negishi
Summary: Silver cluster-assembled materials (SCAMs) with molecular-level designability and unique photophysical properties have limited application scope due to their dissimilar structural architecture in different solvent media. In this study, two unprecedented luminescent SCAMs (TUS 1 and TUS 2) were synthesized, composed of an Ag-12 cluster core connected by quadridentate pyridine linkers. These materials exhibit exceptional fluorescence properties with high absolute quantum yield (QY) and excellent chemical stability in a wide range of solvent polarity. A highly sensitive assay for detecting Fe3+ in aqueous medium was developed, with promising detection limits comparable to the standard. The potential application of these materials in environmental monitoring and assessment was demonstrated through the detection of Fe3+ in real water samples.
Article
Chemistry, Analytical
Yuanyuan Cai, Jin Wang, Lingxi Niu, Yujiao Zhang, Xuan Liu, Chongyang Liu, Shuqing Yang, Huan Qi, Aihua Liu
Summary: A colorimetric sensing strategy using silver/copper nanoclusters was developed for selective and sensitive detection of Hg2+ ions. The method showed a linear concentration range of 0.1-700 nM with a detection limit of 0.05 nM, and can accurately detect Hg2+ in real aqueous samples.
Article
Chemistry, Analytical
Asok Aparna, H. Sreehari, Amrutha Chandran, K. P. Anjali, Ansu Mary Alex, P. Anuvinda, G. B. Gouthami, Neeraja P. Pillai, N. Parvathy, Sandhya Sadanandan, Appukuttan Saritha
Summary: Nano biotechnology, combined with green chemistry, offers immense opportunities and benefits in various fields. This review focuses on the applications of luminescent metal nanoclusters in food quality control and agricultural practices, highlighting their antimicrobial activity.
Article
Chemistry, Physical
Ricca Rahman Nasaruddin, Max J. Hulsey, Jianping Xie
Summary: The bimetallic AuAg NCs with silver doping showed enhanced catalytic activity, better stability, and provided a wider opportunity to tailor the catalytic properties of atomically precise Au-based 25-metal atom NCs by engineering their metal composition.
MOLECULAR CATALYSIS
(2022)
Article
Spectroscopy
Pooja Sharma, Sudhanshu Naithani, Samar Layek, Amit Kumar, Reema Rawat, Sravani Heena, Sravani Kaja, Amit Nag, Sushil Kumar, Tapas Goswami
Summary: The development of low-cost, earth abundant metal-based fluorescent sensors for rapid and selective nanomolar level detection of Hg2+ is of great importance due to the increasing global concern over its harmful effects on humans and the environment. In this study, researchers have designed and demonstrated a turn-on fluorescence probe based on perylene tetracarboxylic acid functionalized copper nano-clusters (CuNCs) for highly selective detection of toxic Hg2+ ions. The fabricated CuNCs showed high photostability with an emission maximum at 532 nm upon excitation at 480 nm, and exhibited significantly enhanced fluorescence intensity upon the addition of Hg2+ compared to other ions and neutral analytes.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Applied
Wanpeng Ma, Xueping Quan, Bing Yan
Summary: In this study, a luminescent material Eu(BTA)@CPP3 was constructed for wide range pH sensing and different luminescent response modes were discussed.
Article
Nanoscience & Nanotechnology
Darwin Kurniawan, Bai Amutha Anjali, Owen Setiawan, Kostya Ken Ostrikov, Yongchul G. Chung, Wei-Hung Chiang
Summary: This article reports on the rational design of a pH sensor using nitrogen-doped graphene quantum dots (NGQDs) and enhancing its properties through microplasma-enabled band-structure engineering. The NGQDs with tunable emission can be synthesized from chitosan biomass precursor under ambient conditions. The NGQDs with enriched -OH functional groups and stable and large Stokes shift can achieve rapid, label-free, and ionic-stable pH sensing over a wide range. The pH sensing mechanism is related to the protonation/deprotonation of -OH group, leading to a luminescence peak shift.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Food Science & Technology
Lin Wang, Liu Liu, Yongfeng Liu, Feng Wang, Xiaotong Zhou
Summary: This study developed antibacterial nanoclusters by combining silver with glutathione. The nanoclusters showed inhibitory effects on the growth and biofilm formation of both Escherichia coli and Staphylococcus aureus. The bacteria exposed to the nanoclusters experienced irreversible damage to their membranes, leading to leakage and cell degeneration. Moreover, the nanoclusters effectively reduced the formation of biofilms and damaged mature biofilms, resulting in a decrease in viable cells.
FOOD RESEARCH INTERNATIONAL
(2022)
Article
Chemistry, Analytical
Yaping Zhong, Qingpu Wang, Yu He, Yili Ge, Gongwu Song
ANALYTICAL METHODS
(2015)
Article
Nanoscience & Nanotechnology
Yaping Zhong, Chun Deng, Yu He, Yili Ge, Gongwu Song
MICRO & NANO LETTERS
(2015)
Article
Nanoscience & Nanotechnology
Yaping Zhong, Xue Wang, Yu He, Yili Ge, Gongwu Song
MICRO & NANO LETTERS
(2015)
Article
Chemistry, Analytical
Yaping Zhong, Qingpu Wang, Yu He, Yili Ge, Gongwu Song
SENSORS AND ACTUATORS B-CHEMICAL
(2015)
Article
Chemistry, Analytical
Yaping Zhong, Yu He, Yili Ge, Gongwu Song
Article
Chemistry, Analytical
Yaping Zhong, Chun Deng, Yu He, Yili Ge, Gongwu Song
Article
Engineering, Biomedical
Yaping Zhong, Yibiao Zou, Lingyan Liu, Ruohan Li, Fengfeng Xue, Tao Yi
ACTA BIOMATERIALIA
(2020)
Article
Chemistry, Analytical
Yaping Zhong, Yibiao Zou, Xianhong Yang, Zhentan Lu, Dong Wang
Summary: A rapid and facile method for the detection of ascorbic acid using molybdenum disulfide quantum dots as a fluorescence sensor is reported. The water-soluble and biocompatible MoS2 QDs were successfully synthesized, and the method showed high selectivity and sensitivity based on the modulation of metal ion and the affinity between ligand and metal ion. The proposed method is simple, rapid, and has a good linear relationship, making it suitable for various analysis and imaging purposes.
Article
Chemistry, Analytical
Yaping Zhong, Lijuan Guo, Zhentan Lu, Dong Wang
Summary: A simple and fast method utilizing fluorescence 3-aminophenylboronic acid-functionalized molybdenum disulfide quantum dots for hypochlorite determination is reported. The method shows high sensitivity and satisfactory recovery rates.
Article
Chemistry, Analytical
Qinqin Yang, Ying Qin, Tiantian Lei, Yaping Zhong, Xipeng Cui, Yu He, Gongwu Song
Summary: Novel Co(OH)(2)/MXene-Ti3C2 nanocomposites with enzyme-mimic activities were prepared and embedded in sodium alginate (SA) gels to fabricate a target-responsive hydrogel-assisted assay. The method showed excellent performance in the determination of Hx content.
Article
Spectroscopy
Yaping Zhong, Lijuan Guo, Yibiao Zou, Yu Chen, Zhentan Lu, Dong Wang
Summary: We propose a rapid and ratiometric fluorescent detection method for hypochlorite using glutathione functionalized molybdenum disulfide quantum dots (G-MoS2 QDs). The G-MoS2 QDs are obtained through a hydrothermal method with maximum fluorescence intensity at 430 nm under excitation of 360 nm. This detection method takes only 30 s at room temperature and has a limit of detection of 11.5 nM.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Analytical
Xianhong Yang, Yaping Zhong, Dong Wang, Zhentan Lu
Summary: In this study, CCK-8 was used for the first time to detect live bacteria concentration based on the redox reaction with dehydrogenase. Staphylococcus aureus and Escherichia coli were chosen as model bacteria, showing a good linear relationship in a wide concentration range. The CCK-8 based method demonstrated high sensitivity and potential for high-throughput bacterial detection.
ANALYTICAL METHODS
(2021)
Article
Materials Science, Biomaterials
Yaping Zhong, Tao Yi
JOURNAL OF MATERIALS CHEMISTRY B
(2019)
Article
Chemistry, Multidisciplinary
Yaping Zhong, Fengfeng Xue, Peng Wei, Ruohan Li, Chunyan Cao, Tao Yi
Article
Chemistry, Analytical
Gang Qu, Yuxin Zhao, Qiaoli Zhang, Jina Wu, Xiaosen Li, Yang Yang, Shilei Liu
Summary: In this study, magnetic mesoporous materials combined with real-time in situ mass spectrometry were used for the high-throughput detection of hydrolyzed products of organophosphorus nerve agents. The method showed good linearity, low limits of detection and quantification, and high extraction recoveries. The magnetic preparation method used was quick, cost-effective, rugged, and safe. The results demonstrated the potential of this method for rapid and efficient determination of the target analytes in environmental samples.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Anna Hildebrand, Mariam Merchant, Danny O'Hare
Summary: Substandard and falsified artemisinin derivatives in antimalarials have caused significant deaths and economic losses. This study evaluates the feasibility of voltammetric methods for identifying and quantifying artemether. The findings suggest that electrochemical analysis shows promise as a method for artemether identification and quantification.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Marx Osorio Araujo Pereira, Alvaro Ferreira Junior, Edson Silvio Batista Rodrigues, Helena Mulser, Giovanna Nascimento de Mello e Silva, Wallans Torres Pio dos Santos, Eric de Souza Gil
Summary: Brazilian spotted fever (BSF) is a serious and rapidly evolving disease. A new impedimetric immunosensor was developed for rapid diagnosis by measuring specific antibodies in plasma. The sensor demonstrated selectivity and accuracy, and has potential for important applications in diagnostic testing.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Kathrin Schilling, Ronald A. Glabonjat, Olgica Balac, Marta Galvez-Fernandez, Arce Domingo-Relloso, Vesna Slavkovich, Jeff Goldsmith, Miranda R. Jones, Tiffany R. Sanchez, Ana Navas-Acien
Summary: Analysis of trace elements in urine is an important tool for assessing exposures, diagnosing nutritional status, and guiding public health and healthcare intervention. This study provides a sensitive method for analyzing 18 elements in urine samples, using only 100 μL. The results show good accuracy and sensitivity of the method.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Mengya Li, Shijie Liu, Shiliang Guo, Dong Liang, Miaoyun Li, Yaodi Zhu, Lijun Zhao, Jong-Hoon Lee, Gaiming Zhao, Yangyang Ma, Yanxia Liu
Summary: In this study, a magnetic flow device was developed to purify spores in a culture medium system. The device used magnetic nanoparticles to absorb vegetative cells, separating them from the spores. The achieved purity of the collected spores was over 95%. The study also demonstrated a rapid quantitative detection method using Raman spectroscopy.
ANALYTICAL METHODS
(2024)
Article
Chemistry, Analytical
Wanqiong Liu, Zixuan Wu, Jianwei Peng, Zebin Xu, Yong Liang
Summary: Metal-organic frameworks (MOFs) are effective carriers for molecular imprinting, but their poor dispersibility in aqueous solution is a significant drawback. In this study, we have applied amphiphilic block copolymers and molecularly imprinted technology on MOFs to improve the hydrophilicity of molecularly imprinted fluorescent materials.
ANALYTICAL METHODS
(2024)
