Article
Environmental Sciences
Sathishkumar Munusamy, Triveni Rajashekhar Mandlimath, Puchakayala Swetha, Abdullah G. Al-Sehemi, Mehboobali Pannipara, Sivasankar Koppala, Paramasivam Shanmugam, Supakorn Boonyuen, Ramyakrishna Pothu, Rajender Boddula
Summary: Doped carbon dots with nitrogen have attracted great attention due to their unique characteristics and have been widely explored in various applications. This article reviews the recent breakthroughs in nitrogen-doped carbon dots for fluorescent sensor applications, including synthetic methods, fluorescent features, sensing mechanisms, and sensor applications for various targets. The potential future directions of nitrogen-doped carbon dots in primary research are also discussed.
ENVIRONMENTAL RESEARCH
(2023)
Article
Chemistry, Physical
Chenyang Shu, Chaozhong Guo, Xinru Xu, Lingtao Sun, Yao Liu, Hongdian Chen, Chuanlan Xu, Rong Jin, Yujun Si, Haifeng Chen
Summary: This study presents a new strategy for synthesizing nitrogen-doped carbon sheets and carbon quantum dots with large specific surface area and micro-porosity. The synthesized material exhibits comparable activity and superior stability to the precious metal catalyst Pt/C in the carbon-based oxygen reduction reaction. In zinc-air batteries, the material delivers higher peak power density and gravimetric energy density, as well as outstanding catalytic durability.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Analytical
Jae Sung Heo, Dongkyun Gil, Cheal Kim
Summary: A thiophene-based fluorescent chemosensor DHTC was designed for efficient and selective detection of gallium ion Ga3+, with a detection limit of 0.39 μM. The binding mode of DHTC to Ga3+ was determined as 1:1 ratio, and the sensing process was thoroughly studied using various techniques including UV-visible light titration, ESI-MS, and DFT calculation.
Article
Nanoscience & Nanotechnology
Toshali Bhoyar, Nishprah Saraswat, M. V. Jyothirmai, Akanksha Gupta, Sunita Kumari Malla, Jiyeon Park, Devthade Vidyasagar, Suresh S. Umare
Summary: Functionalized carbon dots (CDs) can donate or accept electrons depending on their functional groups and electrostatic characteristics. In this study, nitrogen doped graphitic carbon dots (N-g-CDs) were used to improve charge carrier separation in a polymeric carbon nitride (PCN) photocatalyst. The N-g-CDs/PCN hybrid catalyst showed enhanced photocatalytic activity for chromium reduction and degradation of tetracycline and rhodamine B dye.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yanrong Li, Haohao Li, Yang Xu
Summary: In this study, nitrogen-doped carbon dots with blue luminescence properties were prepared and used as a fluorescent probe for specific detection of Mn2+. The carbon dots exhibited high selectivity and sensitivity, and a visual early-warning of Mn content exceeding the standard in drinking water was achieved through fluorescence quenching. The detection performance of the carbon dots in real samples was also demonstrated.
Article
Chemistry, Multidisciplinary
Wenli Li, Ju Tang, Yuzhao Li, Han Bai, Weizuo Zhang, Jin Zhang, Yiming Xiao, Wen Xu
Summary: This study synthesized multi-color fluorescent materials with nitrogen-doped CNDs using a fast and effective microwave method, and investigated the influence of different raw material ratios on the structure and optical properties of N-CNDs. Results showed that the PL emission wavelength of N-CNDs can be tuned by controlling the N concentration, and the PL intensity is positively correlated with the content of C-O groups on the surface/edges of N-CNDs.
Article
Biochemistry & Molecular Biology
Pingping Liu, Lu Ga, Yong Wang, Jun Ai
Summary: Water-soluble nitrogen-doped carbon dots (N-CDs) with excellent optical and fluorescence thermal properties were prepared by the hydrothermal method using 4-dimethylaminopyridine and N,N'-methylenebisacrylamide as precursors. Co2+ selectively burst the fluorescence of N-CDs, showing high sensitivity and detection limit. In addition, the N-CDs' temperature response and optical properties make them potential candidates in the field of fluorescent inks and temperature sensing.
Article
Chemistry, Analytical
Hari Krishna Sadhanala, Saurav Aryal, Kusha Sharma, Ziv Orpaz, Shulamit Michaeli, Aharon Gedanken
Summary: In this study, photoluminescent N-doped carbon dots were synthesized and used for the selective detection and imaging of intracellular magnesium ions. This is the first report of using carbon dots for sensing and imaging of magnesium ions in cells.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Chemistry, Analytical
Xiaodan Zheng, Kunhao Qin, Liping He, Yafang Ding, Qian Luo, Chunting Zhang, Xiuming Cui, Yong Tan, Lina Li, Yunlin Wei
Summary: Carbon dots and photoluminescent carbon dots derived from Panax notoginseng have been successfully synthesized and exhibit superior properties for biological imaging, cell staining, membrane targeting, and selective detection of Cr6+. The research also highlights the non-toxicity, good biocompatibility, and biodistribution of the synthesized carbon dots.
Article
Chemistry, Multidisciplinary
Huifang Wu, Mengqi Xu, Yubing Chen, Haoliang Zhang, Yongjun Shen, Yanfeng Tang
Summary: The specific detection of oxytetracycline (OTC) residues is crucial for ensuring food safety and environmental monitoring. This study successfully synthesized nitrogen-doped carbon dots (NCDs) with unique optical properties and used them to fabricate a dual-response fluorescence probe for the ratiometric determination of OTC. The probe exhibited promising sensitivity and specificity for the detection of OTC in water and milk samples.
Article
Spectroscopy
Kunfeng Liu, Chongshu Xia, Yahui Guo, Hang Yu, Yunfei Xie, Weirong Yao
Summary: Surface modification of N, S-CDs was performed using cysteine and polyethylenimine as raw materials. The prepared N, S-CDs exhibited excitation-independent in the range of 300-380 nm. A fluorescence sensor with high sensitivity and selectivity to detect Hg2+ was developed based on the quenching effect of Hg2+ on the fluorescence intensity of N, S-CDs.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Biochemistry & Molecular Biology
Yue Huang, Xiaojing Si, Mei Han, Chen Bai
Summary: The aim of this study was to establish a rapid detection method of rutin in food using nitrogen-doped carbon quantum dots (N-CDs) as the fluorescent probe. The N-CDs were characterized and found to have good optical properties and water solubility. The method showed good linearity and low detection limit for rutin in food. This method is simple, rapid, and sensitive, and can be used for the rapid determination of rutin in food.
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
Chemistry, Analytical
Lizhu Fu, Yujiao Hou, Haipeng Guo, Chang Liu, Ying Li, Boyu Jia, Lidong Zhou, Weijun Kong
Summary: The development of highly efficient and sensitive methods for trace detection of pesticides in foods is essential. In this study, a fluorescent nanosensor based on gold nanoparticles and biomass-derived nitrogen-doped carbon dots was proposed for accurate detection of thiram in hawthorn. The nanosensor showed high selectivity, excellent sensitivity, and satisfactory performance in practical applications.
MICROCHEMICAL JOURNAL
(2022)
Article
Engineering, Environmental
Yuxin Han, Yuying Bian, Guang Wang
Summary: In this study, a novel nitrogen-doped carbon dots (NCDs) was synthesized. The NCDs possessed chelating groups such as -OH, -COOH, and -NH2 on their surface as confirmed by XPS and FT-IR spectra. The NCDs showed selective turn-off fluorescence response towards Hg2+ and turn-on fluorescence response towards GSH, with low detection limits of 3.50 μM and 3.43 μM, respectively. Moreover, the NCDs demonstrated satisfactory performance in detecting Hg2+ and GSH in practical water and human serum samples, indicating their potential as fluorescence chemosensors.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Zhihan Wu, Hao Wang, Pan Xiong, Guohui Li, Tianlun Qiu, Wen-Bin Gong, Fangfang Zhao, Cuiling Li, Qingwen Li, Guoxiu Wang, Fengxia Geng
Review
Chemistry, Multidisciplinary
Ke Li, Meiying Liang, Hao Wang, Xuehang Wang, Yanshan Huang, Joao Coelho, Sergio Pinilla, Yonglai Zhang, Fangwei Qi, Valeria Nicolosi, Yuxi Xu
ADVANCED FUNCTIONAL MATERIALS
(2020)
Article
Chemistry, Physical
Hao Wang, Jianmin Li, Xiaoxiao Kuai, Liangmin Bu, Lijun Gao, Xu Xiao, Yury Gogotsi
ADVANCED ENERGY MATERIALS
(2020)
Article
Chemistry, Multidisciplinary
Yanping Lin, Hao Wang, Chun-Kuo Peng, Liangmin Bu, Chao-Lung Chiang, Kai Tian, Yue Zhao, Jianqing Zhao, Yan-Gu Lin, Jong-Min Lee, Lijun Gao
Article
Materials Science, Multidisciplinary
Wenchao Shui, Jianmin Li, Hao Wang, Yang Xing, Yilei Li, Qinghui Yang, Xu Xiao, Qiye Wen, Huaiwu Zhang
ADVANCED OPTICAL MATERIALS
(2020)
Article
Chemistry, Physical
Jun Tang, Tyler Mathis, Xiongwei Zhong, Xu Xiao, Hao Wang, Mark Anayee, Feng Pan, Baomin Xu, Yury Gogotsi
Summary: A novel oxidation method was developed to reduce restacking issue of Ti3C2Tx film, resulting in a hierarchical ion path structure with excellent electrochemical performance, high rate capability, and high volumetric capacitance.
ADVANCED ENERGY MATERIALS
(2021)
Article
Electrochemistry
Jianmin Li, Jianmei Chen, Hao Wang, Xu Xiao
Summary: The MXene-coated cotton fabric (MCF)-based PBTM system shows high heating efficiency and good wear comfort, reaching the desired temperature quickly for human body needs. As an electrode material for supercapacitors, the MCF also exhibits high energy density and power density.
Article
Optics
Feiyan Li, Hang Han, Qi Chen, Biao Zhang, Han Bao, Yue Dai, Rui Ge, Shuya Guo, Guanglong He, Yue Fei, Shuchao Yang, Xiaohan Wang, Hao Wang, Xiaoqing Jia, Qingyuan Zhao, Labao Zhang, Lin Kang, Peiheng Wu
Summary: SNSPDs based on amorphous Mo08Si0.2 film demonstrate high intrinsic detection efficiency for 1550 nm photons, while an optimized 90 nm-width wire array SNSPD shows high performance. These results pave the way for achieving high efficiency and superior yield for large array systems.
PHOTONICS RESEARCH
(2021)
Review
Pharmacology & Pharmacy
Peng Gao, Xin Chang, Dagan Zhang, Yafei Cai, Gen Chen, Hao Wang, Tianfu Wang
Summary: Therapeutic nanoparticles designed to enhance treatment efficacy leverage the unique properties of bio-inspired metal nanoclusters, which have advantages like tunable fluorescent capability and good biocompatibility. These bio-inspired metal nanoclusters can effectively combine fluorescent inorganic moieties with biomolecules to create molecular nanoparticles for targeted therapy and bioimaging.
ACTA PHARMACEUTICA SINICA B
(2021)
Editorial Material
Multidisciplinary Sciences
Qi Chen, Rui Ge, Labao Zhang, Feiyan Li, Biao Zhang, Feifei Jin, Hang Han, Yue Dai, Guanglong He, Yue Fei, Xiaohan Wang, Hao Wang, Xiaoqing Jia, Qingyuan Zhao, Xuecou Tu, Lin Kang, Jian Chen, Peiheng Wu
Article
Chemistry, Physical
Juntong Zhu, Hao Wang, Liang Ma, Guifu Zou
Summary: A photodetector based on the van der Waals heterostructure of Ti3C2Tx MXene and MoS2 monolayer was constructed, showing ambipolar photoresponse with positive response in visible spectrum and negative response at longer wavelengths. The device exhibited high negative responsivity and detectivity under specific light illumination, demonstrating a unique optoelectronic phenomenon in MoS2/MXene heterostructures and providing insights for new photodetection materials.
Review
Chemistry, Multidisciplinary
Hao Wang, Jianmei Chen, Yanping Lin, Xiaohan Wang, Jianmin Li, Yao Li, Lijun Gao, Labao Zhang, Dongliang Chao, Xu Xiao, Jong-Min Lee
Summary: This review critically examines the progress of non-vdW 2D electrocatalysts, with a special emphasis on electronic structure modulation and performance enhancement. Strategies such as heteroatom doping, vacancy engineering, pore creation, alloying, and heterostructure engineering are analyzed for tuning electronic structures to achieve higher electrocatalytic performance. A roadmap for the future development of non-vdW 2D electrocatalysts is provided from material, mechanism, and performance perspectives.
ADVANCED MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Hao Wang, Jianmin Li, Ke Li, Yanping Lin, Jianmei Chen, Lijun Gao, Valeria Nicolosi, Xu Xiao, Jong-Min Lee
Summary: Researchers have shown that by designing nanostructured TMNs with tailored morphology, it is possible to address issues such as limited active sites and sluggish ionic kinetics in bulk TMNs, ultimately improving electrochemical performance. Recent progress in TMN-based nanomaterials has focused on geometric-structure design, electronic-structure engineering, and applications in electrochemical energy conversion and storage.
CHEMICAL SOCIETY REVIEWS
(2021)
Article
Electrochemistry
Xu Xiao, Wei Yao, Jun Tang, Chuanfang Liu, Ruqian Lian, Patrick Urbankowski, Mark Anayee, Shijie He, Jianmin Li, Hao Wang, Yu Gao, Yingjin Wei, Yury Gogotsi
Summary: The study presents a stable Li-metal anode enabled by interconnected two-dimensional arrays of niobium nitride nanocrystals, showing high cycling stability and Coulombic efficiency. Full Li-metal batteries built by combining transition metal nitrides with lithium nickel-manganese-cobalt oxide exhibit high cathode loading, low N/P capacity ratio, and lean electrolyte weight to cathode capacity ratio under practical conditions.
BATTERIES & SUPERCAPS
(2021)
Review
Materials Science, Multidisciplinary
Jianmin Li, Hao Wang, Xu Xiao
ENERGY & ENVIRONMENTAL MATERIALS
(2020)
