Article
Chemistry, Multidisciplinary
Zhengyi Bian, Alison Wallum, Arshad Mehmood, Eric Gomez, Ziwen Wang, Subhendu Pandit, Shuming Nie, Stephan Link, Benjamin G. Levine, Martin Gruebele
Summary: A major challenge in the bottom-up solvothermal synthesis of carbon dots is the removal of small-molecule byproducts or other impurities that affect their optical properties. In this study, the small-molecule species in the synthesis of carbon dots were identified and the reaction mixtures were purified, allowing for a detailed analysis of their properties. The results have important implications for achieving full-spectrum fluorescence from isomers of a single precursor molecule.
Article
Nanoscience & Nanotechnology
Juan Yue, Qian Mei, Panyong Wang, Peng Miao, Wen-Fei Dong, Li Li
Summary: The yellow fluorescent carbon dots (CDs) for detecting GSSG through a fluorescence off-on process show linear correlation with GSSG concentration and a detection limit of 0.18mu M. Additionally, the CDs can also be used for fluorescence imaging in living cells and zebrafish.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Nanoscience & Nanotechnology
Junfang Zhang, Yuxin Liu, Christian Njel, Sebastian Ronneberger, Nadezda V. V. Tarakina, Felix F. F. Loeffler
Summary: Counterfeiting not only causes trillion-dollar economic losses annually, but also threatens human health, social equity, and national security. Researchers have developed a nanoprinting-assisted flash synthesis approach to create fluorescent nanofilms with physical unclonable function micropatterns in milliseconds. These unclonable patterns can be quickly and independently read out by fluorescence and topography scanning, greatly enhancing their security.
NATURE NANOTECHNOLOGY
(2023)
Review
Chemistry, Multidisciplinary
Xueping Song, Siyu Zhao, Ying Xu, Xinrui Chen, Shuangfei Wang, Peitao Zhao, Yunqiao Pu, Arthur J. Ragauskas
Summary: This article summarizes the recent research progress in the preparation of carbon dots from lignocellulosics. It reviews the traditional and new preparation methods, physical and chemical properties, optical properties, and applications of these carbon dots. The challenges of synthesizing lignocellulosic carbon dots are highlighted, and current trends and opportunities are examined, with some suggestions for future research.
Article
Chemistry, Physical
C. Russo, A. Ciajolo, F. Stanzione, A. Tregrossi, B. Apicella
Summary: The optical features of pyrogenic carbons as flame-formed carbon particulate matter were studied using a method that involves size exclusion chromatography coupled with UV-Visible absorption and fluorescence spectrometers. This method allowed for the separation and identification of blue- and green-fluorescent components typical of carbon dots (CDs). It also enabled the online determination of quantum yield and optical band gap of fluorescent components in carbon suspensions. The results showed that aromatic species with molecular weight greater than 1000 u and band gap less than 1-1.5 eV had little to no fluorescence. The method can assist in optimizing CD formation and purification processes.
Review
Chemistry, Multidisciplinary
Shanshan Xue, Pengfei Li, Lu Sun, Li An, Dan Qu, Xiayan Wang, Zaicheng Sun
Summary: Fluorescent carbon dots (CDs) are a novel type of nanomaterial with excellent optical properties, which have extensive potential applications in various fields. Studying the formation process and fluorescence mechanism of CDs will contribute to a better understanding of their synthesis and guide future applications.
Review
Chemistry, Analytical
Fanyong Yan, Xiule Wang, Yao Wang, Chunhui Yi, Ming Xu, Jinxia Xu
Summary: Metal-organic frameworks (MOFs) combined with carbon dots (CDs) form composites with excellent optical properties, which are promising for the preparation of a new generation of fluorescence sensors.
Article
Chemistry, Physical
Jun-Ray Macairan, Tayline de Medeiros, Michela Gazzetto, Francisco Yarur Villanueva, Andrea Cannizzo, Rafik Naccache
Summary: The origins and underlying mechanisms of dual fluorescent carbon dots have been debated, with research showing distinct emissive carbon-core and molecular states responsible for their blue and red optical signatures. Further analysis using electrochemical and femtosecond transient absorption spectroscopy provide insight into the fluorescence mechanism of these dual fluorescent dots.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Biophysics
Guangming Li, Chen Liu, Xingcai Zhang, Peng Zhai, Xinyi Lai, Wenxiao Jiang
Summary: N-doped carbon dots were synthesized using a microfluidic strategy at 90 degrees C, with a quantum yield of 19.2%. The properties of the carbon dots were monitored in real-time to synthesize dots with specific properties. The carbon dots were incorporated into an enzymatic cascade amplification system, enabling ultrasensitive detection of cefquinome residues in milk samples. The developed fluorescence immunoassay had a low detection limit, good linear relationship, and high recovery values, making it more sensitive and eco-friendly compared to conventional methods for cefquinome residue analysis.
BIOSENSORS & BIOELECTRONICS
(2023)
Article
Chemistry, Multidisciplinary
Boyang Wang, Jingkun Yu, Laizhi Sui, Shoujun Zhu, Zhiyong Tang, Bai Yang, Siyu Lu
Summary: This study reports a new type of full-color emission carbon dots material, and a simple, convenient hydrothermal preparation method guided by theoretical calculations has been developed, showing great potential for various applications.
Review
Chemistry, Inorganic & Nuclear
Yuqing Wang, Xiangcao Li, Shaojing Zhao, Benhua Wang, Xiangzhi Song, Jiafu Xiao, Minhuan Lan
Summary: Carbon dots (CDs) are nanomaterials with excellent properties that are used in biomedical imaging and cancer therapy. Near-infrared fluorescent CDs have good tissue penetration ability and can achieve high-resolution fluorescence imaging of deep tissues, showing great potential in the biomedical field. This review systematically summarizes the synthesis strategies, luminescence mechanisms, and biomedical applications of near-infrared fluorescent CDs in the past 10 years, and discusses the challenges and perspectives in their synthesis and applications.
COORDINATION CHEMISTRY REVIEWS
(2022)
Article
Chemistry, Analytical
Fanyong Yan, Hao Zhang, Nanhai Yu, Zhonghui Sun, Liang Chen
Summary: This study successfully prepared CDs with different colors by adjusting the synthetic method and explored their applications in non-metal ion detection and mixed light sources. Stable long-wavelength emission of CDs in solvents was achieved by increasing the conjugate area and oxygen elements in CDs, and it was found that the conjugate area and oxidation degree can affect the HOMO-LUMO levels, leading to a fluorescent red-shift.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Nanoscience & Nanotechnology
Jie Li, Guobin Xu, YingMin Lu, Xuan Xia, Wenqi Song, Qi Wang, Chao Liu
Summary: In this study, blue, green, and red water-dispersible carbon dots (CDs) with trichromatic properties were prepared and analyzed for their morphological characteristics and optical properties. The results showed that adjustable fluorescent colors and white emission could be achieved by adjusting the mixing ratio of CDs, and multicolor polyvinyl alcohol fluorescent films were synthesized using CDs as pigments.
ACS APPLIED NANO MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Ayse Tugca Yesilyurt, Xiaofei Wu, Kosti Tapio, Ilko Bald, Jer-Shing Huang
Summary: We observed hotspot-induced emitters and significant enhancement of photoluminescence in plasmonic dimer nanoantennas with the assistance of DNA origami upon excess polarized laser illumination. The alignment of DNA and laser polarization along the dimer axis is crucial for the generation of bright emitters and the observed increase in photoluminescence. The emission spectrum indicates the formation of carbon-based emitters due to plasmonic hotspots at the longitudinal antenna resonance.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Review
Chemistry, Inorganic & Nuclear
Xiangcao Li, Shaojing Zhao, Baoling Li, Ke Yang, Minhuan Lan, Lintao Zeng
Summary: Fluorescent probes play a crucial role in disease diagnosis, environmental monitoring, and food safety control, with fluorescent carbon dots emerging as a promising new nanomaterial due to their excellent biocompatibility and tunable fluorescence properties for sensing and imaging applications.
COORDINATION CHEMISTRY REVIEWS
(2021)
Article
Chemistry, Applied
Leping Chen, Yanfen Wang, Tingyu Shi, Tiantian Ma, Yang Li, Huayu Qiu, Shouchun Yin, Meier Gu
Summary: This study successfully overcame the limitations of the heavy atom effect by introducing iodine atoms and innovatively enhancing the structure while weakening stacking behavior, achieving high efficiency and precision in photodynamic therapy and photothermal therapy.
Article
Chemistry, Applied
Bingpeng Guo, Honghan Sa, Peng Zhang, Guiwen Hao, Mengyu Li, Qingqing Jiang, Baoying Li, Wei Shu, Changxiang Shao
Summary: The design of ratiometric fluorescence probes with large Stokes shift is of great significance in detecting and imaging target substances in complex organisms. In this study, a novel fluorophore with a large Stokes shift was easily obtained, and a fluorescence probe based on it demonstrated rapid response, high selectivity, and sensitivity towards peroxynitrite. The probe also showed excellent biocompatibility and remarkable mitochondrial targeting ability, making it suitable for proportional imaging of peroxynitrite in living cells and zebrafish.
Review
Chemistry, Applied
Haidong Huang, Xiaohui Wang, Xinyang Li, Yichen Li, Guojin Liu, Lan Zhou, Jianzhong Shao
Summary: This article introduces the application of responsive photonic crystals in anti-counterfeiting technology, with a focus on the preparation principle, classification, and preparation methods.
Article
Chemistry, Applied
Yunpeng Wang, Tao Zhao, Xiaoye Bi, Chencheng Lv
Summary: In this study, three novel carbene dyes were designed to achieve environmentally friendly dyeing processes. The dyes formed covalent bonds with fibers and exhibited good dyeing performance and high color fastness. These findings highlight the potential of the novel carbene dyes in promoting green production in the textile industry.
Review
Chemistry, Applied
Yizhe Yan, Xiaopei Zhu, Jia-Xin Cao, Yuan He, Shaoqing Li, Jian-Yong Wang
Summary: In this paper, 1,3,5-triazine dyes were successfully synthesized and their photophysical properties were studied. Two probes were selected for further investigation, showing promising applications in various fields.
Article
Chemistry, Applied
Xin Hu, Tongsheng Huang, Lihua Chen, Weifeng Zhu, Fengjie Deng, Xiancai Li, Jianwen Tian, Meiying Liu, Xiaoyong Zhang, Yen Wei
Summary: This study presents the synthesis of fluorescent cyclomatrix polyphosphazene spheres with aggregation-induced emission (AIE) feature and biodegradable potential for controlled drug delivery. The resulting micelles exhibit high water dispersibility, desirable fluorescence performance, and high drug loading capacity. They can effectively release the encapsulated drug in physiological solution and show excellent biological imaging ability and cytotoxicity against cancer cells.
Article
Chemistry, Applied
Yanzhu Liu, Yanghui Lei, Dongyan Li, Guangkui Li, Dongping Li, Yongxiu Li
Summary: In this study, luminescent lanthanide nanoparticles were synthesized as a dual emission turn-off probe for detecting 2,6-pyridinedicarboxylic acid (DPA) in water. The nanoparticles showed good dispersion and water stability, and achieved low detection limits for DPA. They also exhibited high recoveries in various samples.
Article
Chemistry, Applied
Jung Jae Do, Jong Ryeol Kwon, Donghan Kim, Jae Woong Jung
Summary: This study presents a defect passivation approach using coumarin dye as a multi-functional passivating agent of perovskite films to boost power conversion efficiency and operating stability of PSCs. The incorporation of coumarin dye improves the film morphology, enhances carrier extraction/transport, and suppresses trap-assisted recombination in the perovskite films. The optimized device demonstrates impressive reliability and practical applicability, maintaining over 90% of its initial PCE after being exposed to continuous indoor lighting irradiation for 2000 hours.
Article
Chemistry, Applied
Gang Wang, Yu-Chang Wang, Jing Lu, Wen-Fu Yan, Juan Jin, Yuan-Peng Wang, Jia-Jia Zhang, Hui-Jie Zhang, Hao Dong, Xi-Guang Liu
Summary: A new Ni(II) compound with good solid-state fluorescence performance and stability was synthesized, and it showed outstanding detection properties for various substances in aqueous solutions. This compound has the potential to be a multifunctional sensor.
Article
Chemistry, Applied
Luyao Wei, Shenglong Shang, Yu Zheng, Jie Liu, Ping Zhu
Summary: This study developed a facile method to create high saturation and durable structural colors on cotton fabrics. The colors are regulated by adjusting the size of magnetic particles and can be conveniently printed on fabrics using photo masks on transparent films.
Article
Chemistry, Applied
Zhao Jiang, Qing Zhang, Zhaoyu Kong, Ruijie Qiao, Zichuan Liu, Linzhou Song, Senqiang Zhu, Rui Liu, Hongjun Zhu
Summary: Three heteroleptic Ir(III) complexes with different electron-donating aryl groups were synthesized and their optical properties were investigated. It was found that all three complexes exhibited aggregation-induced phosphorescence emission (AIPE) behaviors, and the relationship between the size of organic ligands and AIPE behaviors was characterized. Ir-PhCz showed the best imaging of latent fingerprints due to its green light emission and high quantum yield.
Article
Chemistry, Applied
Zhijun Ruan, Chunxia Fan, Xuanrong Wang, Dong Shao, Xiaodong Yang, Wentao He, Tao Xu, Junqi Lin, Zhengfang Tian
Summary: A novel thioketal-based probe has been designed for rapid and accurate detection of mercury (II) ions, showing different fluorescence characteristics in various states. The probe exhibits excellent selectivity and specificity, making it suitable for Hg2+ detection in water solutions.
Article
Chemistry, Applied
Jianjun Huang, Xuan Zhao, Daniel Escudero, Luc Van Meervelt, Dongbin Zheng, Yuyu Fang, Wim Dehaen
Summary: A series of BOAHY compounds were successfully synthesized and showed versatile applications as a platform for designing novel fluorescent probes, especially in selective recognition.
Article
Chemistry, Applied
Roman V. Larkovich, Victoria E. Shambalova, Savva A. Ponomarev, Alexander S. Aldoshin, Boris N. Tarasevich, Konstantin A. Lyssenko, Valentine G. Nenajdenko
Summary: An efficient synthetic protocol for the preparation of novel 1,7-difluorinated BODIPYs was elaborated. Their photophysical properties were studied and the effect of 2,6-substituents was evaluated using DFT calculations.
Article
Chemistry, Applied
Haneul Kim, Byungjin Koo
Summary: In this study, a lithium ion sensing methodology based on fluorinated naphthalene compounds using 19F NMR and UV-vis spectroscopy is reported. The binding of lithium ions to the compounds is confirmed by changes in chemical shifts and peak broadening. Additionally, the effect of different crown ether ring sizes on the binding ability is observed. This study provides a new method for lithium ion sensing using spectroscopy.