Article
Chemistry, Multidisciplinary
Jesper Dahl Jensen, Rasmus K. Jakobsen, Zehan Yao, Bo W. Laursen
Summary: Fluorescent probes based on photoinduced electron transfer (PET) quenching of long lifetime triangulenium fluorophores have various applications. This study investigates the rate of PET quenching and its relation to various factors in a series of ADOTA (A) and DAOTA (D) triangulenium fluorophores appended with quencher moieties. The results show that PET quenching is equally efficient/fast from 1 and 2, even with an increase in distance between the donor and the acceptor.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Spectroscopy
Ruixiang Wu, Xin Liu, Xiaoshuai Wang, Fengjie Guo, Shengzhi Wang, Bin Li, Liu-Yong Cheng, Xiangyang Miao
Summary: The fluorescence quenching due to energy transfer from InP/ZnS quantum dots to Ti3C2Tx MXene materials was investigated using transient absorption spectroscopy. It was found that the photo-induced absorption feature in the transient spectrum showed a blue-shift during the fluorescence quenching, indicating an increase in photon energy required for the upward transition. The lifetime of stimulated emission was also found to increase with increasing Ti3C2Tx MXene. By analyzing the lifetime of the stimulated emission feature, the fluorescence quenching of QDs can be quantitatively characterized and Ti3C2Tx MXene can be detected with high sensitivity.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2024)
Article
Chemistry, Applied
Jing-Ya Xie, Jin Tan, Shu-Hua Tang, Ying Wang
Summary: Competitive absorption between maize flour and turmeric powder was observed through front-face synchronous fluorescence spectroscopy and fluorescence titration, with prediction models constructed using partial least square regression showing high accuracy and validation results. The limit of detection for maize flour was approximately 9%, and most relative errors for test samples were within -20% to 20%.
Article
Biochemistry & Molecular Biology
Antony K. Teresa S. Infanta, Nisshanthini Durairaju, Senthil Raja, Thandeeswaran Murugesan, Anand Raj Dhanapal, Karupannan Natarajan, Ajithkumar Balakrishnan, Hemamalini Vedagiri, Palaniswamy Muthusamy, Angayarkanni Jayaraman
Summary: The interactions between ruthenium(II) complex and GidA protein were studied, and a tight metal-protein conjugate was observed. The influence of pH, reducing agents, and chelators on adduct formation was analyzed, and it was found that the ruthenium(II) complex affects the conformation of GidA through hydrophobic interaction. Additionally, the stable semisynthetic complex showed inhibition of DNA topoisomerase II.
JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS
(2023)
Article
Chemistry, Physical
A. Jumbo-Nogales, V. Krivenkov, K. Rusakov, A. S. Urban, M. Grzelczak, Y. P. Rakovich
Summary: The coherence length of Frenkel excitons (N-coh) is a critical parameter for determining key features of supramolecular J-aggregates. Experimental determination of N-coh is challenging due to sensitivity to techniques/methods used, leading to discrepancies in literature data. A combination of experimental techniques is necessary to accurately determine N-coh values for J-aggregates.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Physical
A. Jumbo-Nogales, V. Krivenkov, K. Rusakov, A. S. Urban, M. Grzelczak, Y. P. Rakovich
Summary: The coherence length of Frenkel excitons (N-coh) is a critical parameter for supramolecular J-aggregates, but experimentally determining its value is challenging due to discrepancies caused by different techniques. In this study, we used a combination of experimental techniques to determine the N-coh values for J-aggregates of a cyanine dye. We found that absorption spectroscopy alone is not sufficient for accurately determining N-coh, and a more comprehensive approach involving photoluminescence lifetime, nonlinear response, Stokes shift, and electron-phonon coupling strength analysis is necessary. Our results show that the N-coh of JC-1 J-aggregates ranges from 3 to 6.
JOURNAL OF PHYSICAL CHEMISTRY LETTERS
(2022)
Article
Chemistry, Physical
Hanaa A. Hassanin
Summary: The interaction between vitamin B-2 and vitamin B-12 in an aqueous solution was investigated using fluorescence quenching and UV-vis absorption spectroscopy. The results showed that the fluorescence intensity of vitamin B-2 was significantly quenched by vitamin B-12 at different pH and temperature conditions. The quenching mechanism was determined to be static quenching, and electron transfer between the two compounds was thermodynamically favored. Distance analysis suggested the possibility of Forster resonance energy transfer between vitamin B-2 and vitamin B-12. The electrostatic interaction was found to play an important role in the reaction between the two compounds.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2022)
Article
Chemistry, Physical
Z. Siti Rozaila, Wayne Hutchison, Hans Riesen
Summary: We studied the photoluminescence properties of the 4f(6 7)F(0) (A(1g)) & RARR; 4f(5)5d (T-1u) transition in Sm2+ doped CaF2 nanocrystals and observed Zeeman effects and persistent spectral hole-burning. The luminescence of the 4f(5)5d (A(1u)) & RARR; 4f(6 7)F(1) (T-1g) transition was observed at 708.2 nm, along with weak transitions at 690.2 nm and 703 nm. The spectral hole-burning exhibited Lorentzian line shape and first-order dispersive burning kinetics.
JOURNAL OF PHYSICAL CHEMISTRY C
(2023)
Article
Chemistry, Physical
Yuming Wang, Xianli Wang, Yuanbing Mao, James A. Dorman
Summary: In this study, the substitution of Sc3+ in RE-doped Y2O3 lattices was found to enhance the local symmetry level around the luminescent sites and improve the upconversion luminescence performance of oxide materials, making it suitable for optical temperature measurement in high-temperature applications.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Alexander P. Demchenko
Summary: The discovery that molecules of organic dyes can undergo significant changes in their light absorption and fluorescence properties when they form regular structures has captivated researchers for over eight decades. Progress in understanding this phenomenon, referred to as H- and J-aggregation, has led to numerous practical applications. In this article, the author shares their personal perspective on the transition of this research area from empirical knowledge to a solid foundation in molecular exciton theory, drawing from their own experiences and interactions with prominent figures. The article also highlights key future trends in the field.
Article
Biophysics
Kubilay Korkmaz, Burcu Meryem Beser, Ayse Merve Senol, Yavuz Onganer
Summary: In this study, graphene oxide was synthesized using a modified method and stable composites of GO-SfT were successfully prepared in aqueous media. The interaction between GO layers and SfT photophysical properties was investigated, along with the potential of the GO-SfT-SDS system as a pH sensing biological material.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2021)
Article
Multidisciplinary Sciences
Tomas Malina, Rob Koehorst, David Bina, Jakub Psencik, Herbert van Amerongen
Summary: Chlorosomes, the main light-harvesting complexes of green photosynthetic bacteria adapted to low-light conditions, exhibit excitonic interactions and superradiance, enhancing the probability of excitation energy transfer.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Multidisciplinary
David T. Hogan, Todd C. Sutherland
Summary: This case study presents evidence of the existence of multiple aggregation forms of a single organic dye in the solid state, resulting from its packing polymorphs. Each aggregate can be matched to a specific polymorph through spectroscopy, allowing for nanoscopic structural information even without conventional H- or J-type aggregation spectral features. The conversion from one polymorphic aggregate to another supports Ostwald's rule of stages in organic aggregates suspended in solution. Mechanistically, the dye molecules dissociate from one aggregate and reassemble into a more stable aggregate form, providing the first demonstration of aggregation-induced emission in an organic dye.
Article
Chemistry, Physical
Ulugbek Barotov, Megan D. Klein, Lili Wang, Moungi G. Bawendi
Summary: The study focused on designing a novel J-aggregate system with high extinction coefficient, high QY, and short lifetime through a bottom-up approach. By selecting a J-aggregating cyanine chromophore and rigidifying its backbone, the researchers achieved highly emissive J-aggregates with strong absorbance and fluorescence properties at room temperature. The results have implications for the development of a new generation of organic fluorophores combining high speed, high QY, and solution processing.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Biochemistry & Molecular Biology
Nikolai N. Sluchanko, Eugene G. Maksimov, Yury B. Slonimskiy, Larisa A. Varfolomeeva, Antonina Y. Bukhanko, Nikita A. Egorkin, Georgy Tsoraev, Maria G. Khrenova, Baosheng Ge, Song Qin, Konstantin M. Boyko, Vladimir O. Popov
Summary: This study presents the first crystal structures of OCP2 from cyanobacteria with different morphoecophysiological characteristics and provides a comprehensive comparison of their structure, spectroscopy, and function with OCP1, OCP3, and all-OCP ancestor. The structures enable the correlation of spectroscopic signatures with the effective number of hydrogen and the discovery of chalcogen bonds anchoring the ketocarotenoid in OCP, as well as the rotation of the echinenone's beta-ionone ring in the CTD. The structural data also helped rationalize the observed differences in OCP/FRP and OCP/phycobilisome functional interactions.
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2024)
Article
Spectroscopy
Chen Chen, Nan Gong, Fang Qu, Yue Gao, Wenhui Fang, Chenglin Sun, Zhiwei Men
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2018)
Article
Spectroscopy
Bo Yang, Yeqiu Li, Nan Gong, Xianwen Cao, Shenghan Wang, Chenglin Su
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2019)
Article
Nanoscience & Nanotechnology
Yeqiu Li, Rina Wu, Qin Dai, Qian Li, Nan Gong, Chenglin Sun, Zhiwei Men
Article
Chemistry, Physical
Xianwen Cao, Nan Gong, Hongliang Zhao, Zuowei Li, Chenglin Sun, Zhiwei Men
JOURNAL OF MOLECULAR LIQUIDS
(2019)
Article
Chemistry, Applied
Fang Qu, Haoyang Fu, Yeqiu Li, Chenglin Sun, Zuowei Li, Nan Gong, Zhiwei Men
Article
Chemistry, Physical
Yue Gao, Nan Gong, Chenglin Sun, Wenhui Fang, Shenghan Wang, Zhiwei Men
JOURNAL OF MOLECULAR LIQUIDS
(2020)
Article
Optics
Nan Gong, Fei Yao, Jue Wang, Wenhui Fang, Chenglin Sun, Zhiwei Men
Article
Chemistry, Physical
Xiaofeng Liu, Ying Wang, Shuang Li, Wenhui Fang, Nan Gong, Chenglin Sun, Zhiwei Men
Summary: The stimulated Raman scattering (SRS) of liquid and ice-Ih D2O was studied using a pulsed Nd:YAG laser. Different Raman vibration modes were observed in liquid and ice D2O, with various frequency shifts occurring due to four-wave mixing processes. The temporal behavior of SRS in both liquid and ice D2O was examined, revealing differences in efficiency and self-termination behavior between the two conditions.
JOURNAL OF CHEMICAL PHYSICS
(2021)
Article
Optics
Qingqing Dou, Junyao Mo, Beibei Xu, Nan Gong, Tao Man, Zicheng Li, Gongxun Bai, Chonggen Ma, Jianrong Qiu, Jianhua Hao
Summary: Nonvolatile and giant modulation of luminescence can be achieved through the ferroelectric gating effect in a Ga3+/Pr3+ co-doped BaTiO3 ultra-thin film grown on a specific substrate. The change in emission intensity matches the ferroelectric polarization hysteresis loop, showing a significant enhancement when the polarization is negative. The interaction between O2- and Pr3+ promotes the formation of excited states. This method has potential applications in the development of controllable optoelectronic devices.
Article
Optics
Xiaofeng Liu, Ying Wang, Shuang Li, Haixin Wang, Wenhui Fang, Nan Gong, Chenglin Sun, Zhiwei Men
Summary: In this study, stimulated Raman scattering (SRS) of deuteroxide was investigated using a pulsed Nd:YAG laser with a wavelength of 532 nm. The results showed that by adjusting various parameters, the intensity and energy conversion efficiency of Raman scattering could be effectively improved. This has important implications for the development of tunable Raman lasers.
OPTICS COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Mohamed A. Ali, Wessel M. W. Winters, Moushira A. Mohamed, Dezhi Tan, Guojun Zheng, Rasmus S. K. Madsen, Oxana V. Magdysyuk, Maria Diaz-Lopez, Biao Cai, Nan Gong, Yijue Xu, Ivan Hung, Zhehong Gan, Sabyasachi Sen, Hong-Tao Sun, Thomas D. Bennett, Xiaofeng Liu, Yuanzheng Yue, Jianrong Qiu
Summary: Metal coordination compound (MCC) glasses, including metal-organic framework (MOF) glass, coordination polymer glass, and metal inorganic-organic complex (MIOC) glass, can be synthesized from non-meltable MOFs using a universal wet-chemistry method that inhibits crystallization. These super-sized MCC glasses demonstrate unique features such as high transparency, shaping capability, and anisotropic network. The approach of suppressing crystallization allows for the fabrication of novel MCC glasses with photonic functionalities.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Review
Chemistry, Multidisciplinary
Nan Gong, Beibei Xu, Junyao Mo, Tao Man, Jianrong Qiu
Summary: This review article discusses the important role of defect engineering of inorganic sensitizers on triplet energy transfer (TET) and triplet-triplet annihilation upconversion (TTA-UC) in inorganic-organic hybrid materials. The formation mechanism and influence of different types of defects are discussed, focusing on intrinsic, extrinsic, and surface defect engineering strategies for controlling triplet population, band alignment, carrier mobility, and TET rate. The challenges of controllable defect engineering and the nature of defects are explored, highlighting future opportunities in fundamental photophysics and related applications.
TRENDS IN CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Nan Gong, Runchen Lai, Shiyu Xing, Zhengzheng Liu, Junyao Mo, Tao Man, Zicheng Li, Dawei Di, Juan Du, Dezhi Tan, Xiaofeng Liu, Jianrong Qiu, Beibei Xu
Summary: This study proposes a novel strategy to enhance triplet-triplet annihilation upconversion (TTA-UC) by incorporating ionic-bonded CsPbBr3 and lanthanide Ce3+ ions into composite nanocrystals. This electronic state engineering increases the population of triplet excitons participating in energy transfer, enhances coupling strength and driving force, and ultimately leads to a nonlinear enhancement of UC efficiency. The findings clarify the functions of electronic state engineering in inorganic sensitizers and TTA-UC.
Article
Chemistry, Physical
Fei Yao, Nan Gong, Wenhui Fang, Zhiwei Men
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2020)
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.
