Article
Chemistry, Analytical
Jia Sun, Aili Feng, Xia Wu, Xiaowen Che, Weizhi Zhou
Summary: A composite fluorescent nanoprobe based on metal enhanced fluorescence effect of gelatin-coated silver nanoparticles was developed for selective and sensitive detection of dopamine. The probe showed a low detection limit and good selectivity, making it a promising approach for dopamine detection in human serum samples.
Article
Chemistry, Multidisciplinary
Jing Zhang, Ying Liu, Yang Liu, Wencai Liu, Fengniu Lu, Zhiqin Yuan, Chao Lu
Summary: This study explores the use of gold nanocluster-encapsulated hyperbranched polyethyleneimine as a specific and ratiometric dopamine nanoprobe. The nanoprobe shows rapid and sensitive dopamine detection due to the enhanced dopamine self-polymerization. It has favorable selectivity and stability for dopamine analysis in urine samples.
FRONTIERS IN CHEMISTRY
(2022)
Article
Spectroscopy
Ting Zhou, Zhu Su, Yifeng Tu, Jilin Yan
Summary: Protein stabilized gold-silver nanoclusters were synthesized and successfully utilized for sensitive detection of dopamine through fluorescence enhancement. The method provided a facile and efficient way for dopamine determination in serum samples.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Spectroscopy
Zhifeng Cai, Shulin Pang, Liangliang Wu, Erxiao Hao, Jiaxin Rong
Summary: Dopamine-protected copper nanoclusters were utilized as a novel fluorescent nanosensor for the detection of nitrofurantoin. The sensor demonstrated good linear relationship and low detection limit, and was successfully applied for NFT detection in bovine serum samples.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Chemistry, Analytical
Shuyi Huang, Long Yu, Pengchen Su, Tao Wen, Mingtai Sun, Dejian Huang, Xiangke Wang, Suhua Wang
Summary: In this study, a new type of fluorescent organosilicon nanodots (OSiNDs) was successfully constructed and used for the on-site detection of antibiotic doxycycline residue. The fluorescence of doxycycline was enhanced through conformational fixation on the surface of OSiNDs, resulting in fluorescence resonance energy transfer (FRET). The optimized method provided a sensitive and selective detection of doxycycline based on ratiometric fluorescence signal.
ANALYTICA CHIMICA ACTA
(2022)
Article
Engineering, Chemical
Xiupei Yang, Fangming Tian, Shaohua Wen, Hua Xu, Lin Zhang, Jie Zeng
Summary: A cost-effective and environmentally friendly method was developed for rapid dopamine detection using carbon quantum dots. The optimized experimental conditions allowed for analysis of trace amounts of dopamine, making it suitable for pharmaceutical and clinical applications. The method offers advantages such as easy sensor preparation, environmentally friendly sample preparation, short response time, and good selectivity.
Article
Chemistry, Multidisciplinary
Hossein Navay Baghban, Mohammad Hasanzadeh, Yuqian Liu, Farzad Seidi
Summary: In recent years, there has been an increasing use of ractopamine (RAC) as a dietary supplement in animals. The excessive use of RAC has negative impacts on human health. Therefore, there is a growing demand for simple, easy-to-use, and disposable devices for RAC recognition, even in remote areas. In this study, a straightforward colorimetric system based on the etching effect of RAC on AgNPrs was developed to meet this need. The system utilized a nanoprobe with advanced optical properties and stability, which could be used for RAC recognition without the need for any combination or reagents. A simple colorimetric chemosensor integrated with an optimized microfluidic paper-based colorimetric device (mu PCD) was designed and applied to quantify RAC in a chicken sample. The system showed excellent analytical metrics and could be a valuable tool for on-site semi-analytical recognition of harmful substances or illegal drugs.
Article
Chemistry, Analytical
XueQin Li, Xingcen Liu, Yujie Liu, Ran Gao, Xia Wu, Xibao Gao
Summary: We developed a trace level detection method for dopamine based on the metal-enhanced fluorescence effect of gold nanoflowers. The fluorescence of Tb3+ was significantly enhanced through the synergistic effect between the luminescence sensitized by dopamine and the metal-enhanced fluorescence caused by gold nanoflowers. The proposed method demonstrated very significant sensing ability against dopamine concentration and showed a good linear relationship in a wide concentration range.
Review
Chemistry, Inorganic & Nuclear
Edward R. H. Walter, Christopher Hogg, David Parker, J. A. Gareth Williams
Summary: Progress in the selective binding and detection of magnesium ions has been slower compared to other biologically important divalent metal ions like calcium and zinc. Despite the importance of magnesium ions in cells, current ligands for Mg2+ are not optimal in terms of selectivity. There is a need for improved sensors for magnesium ions, and the development of new ligands based on fundamental coordination chemistry principles is essential. Low-denticity ligands offer better selectivity, while high-denticity ligands provide higher stability constants, although they may also bind other metal ions more strongly. Recent research on aminophosphinates has shown promise in achieving selectivity towards magnesium ions.
COORDINATION CHEMISTRY REVIEWS
(2021)
Review
Chemistry, Analytical
Jingyu Hu, Yuanqiang Sun, Aaron Albert Aryee, Lingbo Qu, Ke Zhang, Zhaohui Li
Summary: This review provides an overview of both conventional and emerging mechanisms used in carbon dot (CD) based fluorescent probe designs. It discusses the applications of CDs in chemosensing, biosensing, and bioimaging, and also discusses several other mechanisms that have potential but have not been widely applied in CD-based sensing systems.
ANALYTICA CHIMICA ACTA
(2022)
Article
Nanoscience & Nanotechnology
Lei Bian, Jie Ma, Jiebing Ai, Yan Wang, Naiyu Wang, Guangsheng Guo, Xiayan Wang, Qiaosheng Pu
Summary: This study demonstrates the successful use of NaCl as a molecular template for the synthesis of flat organic molecules. The synthesis method is simple, low-cost, and efficient. The results show that NaCl crystal can serve as a mold in combination with HCl, resulting in high yields of the desired products. Computer simulation deduced the mechanism and confirmed the enhanced fluorescence properties of the product in water, making it a potential fluorescent probe. Additionally, a full-color material with adjustable fluorescence color was prepared.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Jiangtao Lv, Minghui Chang, Qiongchan Gu, Yu Ying, Guangyuan Si
Summary: This study proposes a nanoscale hemisphere structure that enhances the electric field and modulates the radiation characteristics of fluorophores by adjusting its radius. Through full-wave simulation, the radiation characteristics of the nanoscale hemisphere are studied in detail, and significant enhancement exceeding 30 compared to free space is observed.
Article
Chemistry, Analytical
Xinpei Pang, Li Li, Panyong Wang, Yan Zhang, Wenfei Dong, Qian Mei
Summary: A novel fluorescent chemosensing strategy for the detection and determination of hypochlorite based on fluorescence enhancement was developed using nitrogen-doped carbon dots (N-CDs). The N-CDs exhibited good sensitivity and selectivity towards ClO-, showing reliable detection results in real samples and holding great potential for bioimaging applications.
MICROCHEMICAL JOURNAL
(2021)
Article
Chemistry, Physical
Haichao Li, Kechao Zhou, Jun Cao, Qiuping Wei, Cheng-Te Lin, Sharel E. Pei, Li Ma, Naixiu Hu, Yaohua Guo, Zejun Deng, Zhiming Yu, Sichao Zeng, Wanlin Yang, Lingcong Meng
Summary: A novel modification technique was proposed to immobilize nanoparticles on a boron-doped diamond surface via nanopores, preventing aggregation and improving stability. The modified electrode showed good selectivity, increased peak current for dopamine, and enhanced sensitivity for detection, with a wide linear range and low detection limit. Real sample tests validated the promising performance of the modified electrode in detecting dopamine in human serum and injections.
Article
Physics, Applied
Xiaoli Sun, Qingchuan Ye, Yi Liu, Wenqing Sun, Chi Pang, Yuechen Jia, Feng Chen
Summary: Localized surface plasmon resonance from metallic nanoparticles (NPs) under optical excitation brings out intriguing applications in photonics. We realize plasmon-enhanced Raman scattering of two-dimensional (2D) materials (up to 19 times of magnitude for SnSe2 and 12 times for MoS2) via embedded silver nanoparticles in fused silica glass (hereby Ag NPs:glass), suggesting that the fabricated ion-modified multifunctional substrate shows a good compatibility that couple with 2D nanosheets. Moreover, the existence of insulating layers of SiO2 blocks the direct electron transfer and protects the intrinsic properties of surface materials, the Ag NPs:glass substrate exhibits excellent environmental stability and reusability, maintaining higher enhancement ability after a number of repeated uses.
JOURNAL OF APPLIED PHYSICS
(2023)
Article
Chemistry, Multidisciplinary
Jayasmita Jana, Seung Hyun Hur
Summary: Nitrogen-doped carbon dots with tunable fluorescence properties were synthesized hydrothermally in aqueous media. The emission peaks showed a blue shift upon dilution, and interaction with metal cations caused quenching. The one-pot detection of metal ions and ascorbic acid was designed through re-absorption phenomenon and exposure of surface functional groups.
Article
Chemistry, Analytical
Yen-Linh Thi Ngo, Phi Luan Nguyen, Jayasmita Jana, Won Mook Choi, Jin Suk Chung, Seung Hyun Hur
Summary: A new strategy for sensing hydrogen peroxide (H2O2) and glucose using metal oxide-carbon dot hybrid structure was investigated. The sensing system showed high accuracy in detecting H2O2 and glucose and could be applied for on-site analysis of glucose without the use of a spectrometer.
ANALYTICA CHIMICA ACTA
(2021)
Article
Chemistry, Physical
Tran Van Phuc, Jayasmita Jana, Nivetha Ravi, Sung Gu Kang, Jin Suk Chung, Won Mook Choi, Seung Hyun Hur
Summary: This study presents a rational design of Ni/Co metal-organic framework (MOF) nanosheet array catalyst on CoO modified Ni foam substrate for efficient water splitting. The optimized NC-2@CoO/NF catalyst demonstrates excellent electrochemical performance with low overpotential and cell voltage, achieving overall water splitting at a much smaller voltage than commercial catalysts. The synergistic effects of Ni/Co-MOF and CoO/NF contribute to the outstanding performance and long-term stability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Spectroscopy
Linlin Wang, Jayasmita Jana, Jin Suk Chung, Won Mook Choi, Seung Hyun Hur
Summary: Low-cost nitrogen and boron-doped carbon nanodots (CPAP-CDs) with high quantum yield were synthesized through a facile hydrothermal treatment. These CPAP-CDs showed wide absorption, strong fluorescence, and pH-dependent behavior, making them suitable for detecting nitrite ions. The method had a low detection limit, wide linear detection range, and was successfully applied to different water samples testing.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Energy & Fuels
Jayasmita Jana, Ravi Nivetha, Huynh Ngoc Diem, Tran Van Phuc, Sung Gu Kang, Jin Suk Chung, Won Mook Choi, Seung Hyun Hur
Summary: In this study, a ternary composite material was synthesized as an electrode material for water reduction under alkaline conditions. The study showed that the material has selective reactive sites, requires a significant overpotential to achieve the desired current density, and exhibits good reaction rate and stability.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Chemistry, Multidisciplinary
Japandeep Kaur, Mainak Ganguly, Rodrigo Rangel-Alvardo, Devendra Pal, Ryan Hall, Parisa A. Ariya
Summary: Organic and inorganic emerging contaminants are widespread in the Earth's ecosystem. This study evaluated the ice nucleation efficiency of eight emerging contaminants, including synthetic antibiotics and hormones, under mixed-phase cloud conditions. It was found that gentamicin sulfate and daidzein exhibited the highest ice nucleation efficiency.
ACS EARTH AND SPACE CHEMISTRY
(2022)
Article
Engineering, Environmental
Yen-Linh Thi Ngo, K. C. Bhamu, Anastasiia Voronova, Jayasmita Jana, Sung Gu Kang, Jin Suk Chung, Won Mook Choi, Jong Hyun Jang, Seung Hyun Hur, Bora Seo
Summary: In this study, a high-density carbide-oxide heterostructure was successfully synthesized by using nano-sized carbon dots as carbon sources dispersed on tungsten oxide nanorods. The resulting tungsten carbide-oxide composite exhibited superior electrocatalytic activity with low overpotential and high current density in acidic media.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Jayasmita Jana, Tran Van Phuc, Jin Suk Chung, Won Mook Choi, Seung Hyun Hur
Summary: A carbon nanosphere-protected CuO/Co3O4 composite was synthesized and used as a cathode material for electrocatalytic seawater splitting. The composite showed excellent electrocatalytic activity and stability, making it a promising candidate for seawater electrocatalysis.
Review
Energy & Fuels
Ravi Nivetha, Sushant Sharma, Jayasmita Jana, Jin Suk Chung, Won Mook Choi, Seung Hyun Hur
Summary: Metal-organic frameworks (MOFs) are porous crystalline materials formed by coordination bonding between organic ligands and metal ions or clusters, and have attracted significant interest due to their high porosity, diverse structures, and controllable chemical composition. The focus has recently shifted to 2D transition-metal (TM)-based MOFs, which exhibit high aspect ratios and can be used to construct heterostructures with high electrical conductivity and abundant active sites. This review provides a comprehensive overview of the synthesis strategies, applications, and recent advances in energy conversion and storage of 2D TM-based MOFs and their composites/derivatives.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2023)
Article
Chemistry, Physical
Jayasmita Jana, Tata Sanjay Kanna Sharma, Jin Suk Chung, Won Mook Choi, Seung Hyun Hur
Summary: In this study, iron-molybdenum composites with carbide and oxide functionalities were synthesized and their catalytic activities towards the electrolysis of water and urea were investigated. A 3D carbon nano-nest (CnN) was used as the carbide source and stabilizing agent. Different behavior was observed when the materials were used as electrode materials for water splitting and alkaline urea electrolysis. The reaction mechanism depended on the nature of the catalyst surface and constituents.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Review
Environmental Sciences
P. Sharma, M. Ganguly
Summary: Diiminic Schiff bases (DSBs) have been synthesized and used to detect highly toxic metal ions as well as biological compounds in water through coinage metal-enhanced fluorescence (MEF). This method offers selectivity, sensitivity, and potential for designing sensing platforms for water pollutants detection.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Jayasmita Jana, Tata Sanjay Kanna Sharma, Jin Suk Chung, Won Mook Choi, Seung Hyun Hur
Summary: In recent years, the search for transition-metal-based materials for overall water splitting in the energy field research has gained attention. A series of late first-row transition-metal molybdates (TMMo) were studied for alkaline water splitting, where the materials were synthesized through a hydrothermal process. Among the molybdates, CoMo exhibited the best activity and stability, making it a potential commercial alternative electrocatalyst for overall water splitting.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Mamta Sahu, Mainak Ganguly, Ankita Doi
Summary: Silver nanoparticles were synthesized using alkaline salicylaldehyde (SL) in the presence of silver nitrate. The solution exhibited highly fluorescent properties with silver (0) acting as the metal-enhanced fluorophore. The fluorescence was selectively quenched by the addition of Fe3+ and this silver-enhanced fluorescence method was successfully used for the selective and sensitive detection of iron in various water sources.
Article
Chemistry, Multidisciplinary
Priyanka Sharma, Mainak Ganguly
Summary: The small molecule salicylaldehyde was used to enhance the fluorescence of copper. The fluorescence properties were studied under different physicochemical conditions. This fluorescence was applied to create a sensing platform for detecting H2O2 with different detection limits. Copper nanoparticles were impregnated in cotton fibers to remove H2O2, and the effectiveness was quantified using copper-enhanced fluorescence.
NEW JOURNAL OF CHEMISTRY
(2023)
Proceedings Paper
Computer Science, Artificial Intelligence
Ashis Sau, Abhijan Bhattacharyya, Madhurima Ganguly
Summary: This paper addresses the issue of inherent delay in cloud-centric architecture and proposes a novel WebRTC based signaling protocol for multi-user sessions. The system has been deployed in public cloud and its effectiveness is established through benchmarking against cloud-centric architecture in real-life field trials.
MOBILE AND UBIQUITOUS SYSTEMS: COMPUTING, NETWORKING AND SERVICES
(2022)
