Article
Chemistry, Multidisciplinary
Soumyadip Bhunia, Manish Mukherjee, Pradipta Purkayastha
Summary: The study demonstrates the potential of stable Cu NCs synthesized within the aqueous core of reverse micelles (RMs) in photosensitization and controlled modulation, with promising applications in PET-driven phenomena such as solar cells or batteries.
Article
Chemistry, Analytical
Ting Zhu, Jinyang Chen, Qingli Chai, Shasha Zeng, Yucheng Liu
Summary: This study presents a novel and stable fluorescent sensor based on the wavelength shift of copper nanoclusters (CuNCs) as signal readout. By introducing manganese ion (Mn2+), the fluorescence wavelength of CuNCs could be precisely tuned, and it is demonstrated that wavelength readout is more stable than intensity readout. A stable sensor for sensitive alkaline phosphatase (ALP) detection is constructed based on this principle, and consistent results with clinical test data are obtained in real serum samples.
ANALYTICA CHIMICA ACTA
(2022)
Article
Biochemistry & Molecular Biology
Krystian Galecki, Agnieszka Kowalska-Baron, Katarzyna E. Nowak, Anna Gajda, Beata Kolesinska
Summary: This study demonstrates the utility of time-resolved fluorescence spectroscopy in detecting subtle changes in the microenvironment of tryptophan chromophore in AOT reverse micelles. The results show evident changes in spectral characteristics and fluorescence decay kinetics when tryptophan and its peptides are inserted into micelles.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Article
Chemistry, Multidisciplinary
Seokjoon Kim, Eun Sung Lee, Byung Seok Cha, Ki Soo Park
Summary: In this study, DNA-templated copper nanoclusters with improved fluorescence stability were prepared by introducing fructose into the synthesis process. The inclusion of fructose significantly increased the operating lifetime of the CuNCs and improved their stability against various conditions. Moreover, the fluorescence signal of CuNCs was maintained for a longer time when stored at low temperatures. These findings provide a basis for improving the stability of copper nanoclusters for various applications.
Article
Chemistry, Physical
Debkumar Bera, Mousumi Baruah, Asish K. Dehury, Animesh Samanta, Yatendra S. Chaudhary, Nirmal Goswami
Summary: Nanoscale assembly of ultrasmall metal nanoclusters using molecular forces has been shown to be a powerful strategy to manipulate their properties in various dimensions. In this study, we demonstrate the formation of kinetically trapped assemblies with enhanced photoluminescence and extended this principle to other materials. We also show a thermal energy driven process to isolate these assemblies, which exhibit thermodynamic stability and unique properties. Our strategy may have broader applications in creating different MNC-based assemblies with unforeseen arrangements and properties.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Analytical
Le Li, Ting Liu, Meifang Wang, Yong'an Ren, Nan Jia, Huaiyu Bu, Gang Xie, Hang Xu, Yongli Wu, Xiangyuan Ouyang
Summary: By synthesizing snowflake-like DNA crystals and copper nanoclusters, a turn-on label-free fluorescence detection method for actin with improved stability and emission intensity was developed. The detection limit was significantly lower than previous methods and the linear range was wider, showing potential for practical applications in biosensors.
ANALYTICA CHIMICA ACTA
(2021)
Article
Spectroscopy
Yu-yu Guo, Wen-jing Li, Peng-yu Guo, Xin-rui Han, Zi-rong Deng, Shen Zhang, Zhi-feng Cai
Summary: A fluorescent detection platform for baicalein using trypsin-templated copper nanoclusters was established, showing rapid, facile, and green characteristics. The platform exhibited excellent linear relationship and detection sensitivity, providing a new method for baicalein sensing.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
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
Spectroscopy
Zhifeng Cai, Liangliang Wu, Kaifei Qi, Chenhua Deng, Caifeng Zhang
Summary: A green method using GSH and ascorbic acid was developed to prepare Cu nanoclusters, which showed good water solubility, stability, and dispersibility. The method can be used for furazolidone detection in bovine serum and provides a rapid, easy, and ultra-sensitive fluorescence platform.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Chemistry, Multidisciplinary
Luyao Liu, Yuchen Luo, Xuebing Zhang, Bo Deng, Deshuai Zhen, Zhangye Zhou, Hongbin Xie, Hao Liang, Lili Chen
Summary: In this study, a rapid, highly sensitive and selective detection method for folic acid (FA) was developed using a dsDNA-CuNCs nanoprobe. The method exhibited a satisfactory linear response and low detection limit, and was successfully applied in FA detection in serum and tablets.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Luyao Liu, Yuchen Luo, Xuebing Zhang, Bo Deng, Deshuai Zhen, Zhangye Zhou, Hongbin Xie, Hao Liang, Lili Chen
Summary: In this study, a double-stranded DNA-templated copper nanoclusters (CuNCs) nanoprobe was designed for rapid, highly sensitive and selective detection of folic acid (FA) via the inner filter effect (IFE). The method showed satisfactory linear response and low limit of detection (LOD) for FA and exhibited excellent selectivity when applied in serum and tablets. This fluorescence method provides a straightforward label-free biosensor platform for rapid detection of FA.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Analytical
Shan Pu, Chengyan Xia, Lan Wu, Kailai Xu
Summary: Synthesized Cys-PVP-CuNCs were utilized for a sensitive detection of trace Sn4+, showing a linear range for detection, low detection limit, and noticeable fluorescent color change visible to the naked eye. The proposed fluorescent probe exhibits high sensitivity, stability, simplicity, selectivity, and is expected to be used for real-time field detection of Sn4+.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Mengyao Tang, Qiaonan Zhu, Pengfei Hu, Li Jiang, Rongyang Liu, Jiawei Wang, Liwei Cheng, Xiuhui Zhang, Wenxing Chen, Hua Wang
Summary: Aqueous zinc-ion batteries (ZIBs) show great promise as fast-charging energy-storage systems due to their attractive ionic conductivity, high theoretical energy density, and low cost. This study demonstrates stable radical intermediate generation in a typical organic electrode material (methylene blue [MB]), which effectively enhances the intrinsic kinetics of the cathode and enables ultrafast Zn2+ storage. Anionic co-intercalation helps maintain the stability of the structure, resulting in excellent rate capability and long cycle life for Zn-MB batteries.
ADVANCED FUNCTIONAL MATERIALS
(2021)
Article
Chemistry, Analytical
Haiyan Chen, Qiaoyin Li, Shumin You, Xuemin Huang, Chunmei Fan, Zhenyu Lin, Bin Qiu
Summary: A ratiometric fluorescence probe for the sensitive and visual detection of tetracyclinee (TC) was developed, based on cascade fluorescence signal amplification induced by BSA-CuNCs and Y3+. The method showed high sensitivity and accuracy, and was successfully applied to spiked milk samples. Additionally, a smartphone-based intelligent sensing platform allowed for rapid and portable TC detection.
Article
Chemistry, Applied
Azam Bagheri Pebdeni, Maryam Mousavizadegan, Morteza Hosseini
Summary: The proposed dual detection sensor combines aptamer and antibiotic for effective recognition and quantification of Staphylococcus aureus. The sensor showed high specificity in detecting S. aureus using CuNCs, with potential applications for monitoring pathogenic bacteria.