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Multifunctional N,S-doped and methionine functionalized carbon dots for on−off−on Fe^(3+)and ascorbic acid sensing,cell imaging,and fluorescent ink applying

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Nano Research 2023年第4期16卷 5401-5411页

作者： Zheng Yang Tiantian Xu Shaobing Zhang Hui Li Yali Ji Xiaodan Jia Jianli Li Key Laboratory of Synthetic and Natural Functional Molecule of the Ministry of Education College of Chemistry&Materials ScienceNorthwest UniversityXi’an 710127China College of Chemistry and Chemical Engineering Xi’an University of Science and TechnologyXi’an 710054China Key Laboratory of Coal Resources Exploration and Comprehensive Utilization Ministry of Land and ResourcesXi’an 710012China

fluorescent carbon dots(CDs)have been identified as potential nanosensors and attracted tremendous research interests in wide areas including anti-counterfeiting,environmental and biological sensing and imaging in considering of the attractive optical properties.In this work,we present a CDs based fluorescent sensor from polyvinylpyrrolidone,citric acid,and methionine as precursors by hydrothermal approach.The selective quantifying of Fe^(3+)and ascorbic acid(AA)are based on the fluorescent on-off-on process,in which the fluorescent quenching is induced by the coordination of the Fe^(3+)on the surface of the CDs,while the fluorescence recovery is mainly attributed to redox reaction between Fe^(3+)and AA,breaking the coordination and bringing the fluorescence back.Inspired by the good water solubility and biocompatibility,significant photostability,superior photobleaching resistance as well as high selectivity,sensitivity,and interference immunity,which are constructed mainly from the N,S-doping and methionine surface functionalization,the CDs have not only been employed as fluorescence ink in multiple anticounterfeiting printing and confidential document writing or transmitting,but also been developed as promising fluorescence sensors in solution and solid by CDs doped test strips and hydrogels for effectively monitoring and removing of Fe^(3+)and AA in environmental aqueous solution.The CDs have been also implemented as effective diagnostic candidates for imaging and tracking of Fe^(3+)and AA in living cells,accelerating the understanding of their function and importance in related biological processes for the prevention and treatment specific diseases.

关键词： carbon dots fluorescent sensors Fe^(3+) ascorbic acid fluorescent ink message encryption

Barium charge transferred doped carbon dots with ultra-high quantum yield photoluminescence of 99.6% and applications

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Chinese Chemical Letters 2021年第2期32卷 861-865页

作者： Yao Liu Jianfei Wei Xiang Yan Ming Zhao Chaozhong Guo Quan Xu Chongqing Key Laboratory of Materials Surface&Interface Science College of Materials Science and EngineeringChongqing University of Arts and SciencesChongqing 402160China School of Materials Designing and Engineering Beijing Institute of Fashion TechnologyBeijing 100029China School of Materials Science and Engineering Boise UniversityBaise 533000China State Key Laboratory of Heavy Oil Processing Beijing Key Laboratory of Biogas Upgrading UtilizationChina University of Petroleum-BeijingBeijing 102249China

Long-emission carbon dots(CDs) is triggering immense enthusiasm on account of their intrinsic merits of high chemical stability and excellent optical properties.In this study,a facile and rapid approach was developed for the preparation of barium-doped carbon dots(Ba-CDs) with yellow fluo rescence emission and high quantum yields.Surface chemistry and the chemical architecture of the Ba-CDs was revealed under various spectroscopic methods.This work provides more insights into the effects of charge transfer caused by Ba heteroatoms,which is considered as the most challenging step in the investigation on luminescence mechanism.Remarkably,the prepared Ba-CDs were successfully applied as fluorescent probes in the detection of trace water in organic solvents(ethanol,isopropanol,acetone,tetrahydrofuran).Comparing with traditional fluorescent probes for water detection in organic solvents,Ba-CDs detection provides a more sensitive,much faster and more economical approach.

关键词： Ba-doped Carbon dots Quantum yield Charge transfer fluorescent sensors

Synthesis of calix[4]arene derivatives via a Pd-catalyzed Sonogashira reaction and their recognition properties towards phenols

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Chinese Chemical Letters 2014年第2期25卷 226-228页

作者： Yue Sun Fan Zhang Li Zhang Li Luo Zhi-Long Zou Xian-Liang Cao Shi-Liang Tan Jia-Hai Bi De-Mei Tian Hai-Bing Li Key Laboratory of Pesticide and Chemical Biology of the Ministry of Education College of ChemistryCentral China Normal University

A novel series of calix[4]arene derivatives were synthesized via a Pd-catalyzed Sonogashira coupling reaction from para-substituted iodobenzene and 25,27-dipropargyl-calix[4]arene. Fluorescence studies found that nitro-phenols clearly exhibited quenching effects on 2c. Moreover, we minimized the free energy of the complexes by theoretical calculations. As the result, the πr-π stacking interactions take place between the 4-nitrophenol and calix[4]arene, which may lead to the significant fluorescence quench.

关键词： Calixarene Sonogashira coupling reaction fluorescent sensors π-πstacking

A mini-review on MXenes as versatile substrate for advanced sensors

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Chinese Chemical Letters 2020年第4期31卷 922-930页

作者： Razium Ali Soomro Sana Jawaid Qizhen Zhu Zaheer Abbas Bin Xu Beijing Advanced Innovation Center for Soft Matter Science and Engineering Beijing University of Chemical TechnologyBeijing 100029China State Key Laboratory of Organic-Inorganic Composites Beijing Key Laboratory of Electrochemical Process and Technology for MaterialsBeijing University of Chemical TechnologyBeijing 100029China National Centre of Excellence in Analytical Chemistry University of SindhJamshoro 76080Pakistan

MXenes have emerged as versatile 2D materials that are already gaining paramount attention in the areas of energy,catalyst,electromagnetic shielding,and sensors.The unique surface chemistry,graphene-like mo rphology,high hydrophilicity,metal-like conductivity with redox capability identifies MXenes,as an ideal material for surface-related applications.This short review summarizes the most recent reports that discuss the potential application of MXenes and their hybrids as a transducer material for advanced sensors.Based on the nature of transducing signals,the discussion is categorized into three sections,which include electrochemical(bio)sensors,gas sensors,and finally,electro-chemiluminescence&fluorescent sensors.The review provides a concise summary of all the analytical merits obtained subsequent to the use of MXenes,followed by endeavors that have been made to accentuate the future perspective of MXenes in sensor devices.

关键词： MXenes Electrochemical sensors Gas sensors Electrochemiluminescent sensor fluorescent sensors

Novel synthesis of N-substituted-calix[4]azacrown derivatives

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Chinese Chemical Letters 2010年第7期21卷 807-809页

作者： Zhi Qiang Shi Ya Qing Feng Shu Xian Meng Renai College of Tianjin University Tianjin 301636China School of Chemical Engineering and Technology Tianjin UniversityTianjin 300072China

A novel series of calix[4]azacrown derivatives with the reaction between calix[4]azacrown and the different fluorophore derivatives,which may be useful fluorescent receptors,have been synthesized and structurally characterized by IR,~1H NMR,^（13）C NMR and MS.From their analysis data,it was found those compounds adopted a cone conformation.

关键词： Calixazacrown Naphthalimide fluorescent sensors Synthesis Characterization

基于BODIPY的高选择性检测巯基化合物的新型荧光探针

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基于BODIPY的高选择性检测巯基化合物的新型荧光探针

A water-soluble fluorescent chemosensor for Zinc based on Amidoquinoline derivative

第十三届全国光化学学术讨论会

作者：牛丽亚管英士陈玉哲杨清正光化学转换与功能材料重点实验室中国科学院理化技术研究所

＜正＞含巯基的生物小分子,如半胱氨酸（Cys）、同型半胱氨酸（Hcy）、谷胱甘肽（GSH）,在维持生物体系氧化还原平衡方面发挥着重要作用,发展对巯基生物小分子的新的检测方法有着重要意义。最近我们基于两步反应机制,发展了高选择性检测... 详细信息

＜正＞含巯基的生物小分子,如半胱氨酸（Cys）、同型半胱氨酸（Hcy）、谷胱甘肽（GSH）,在维持生物体系氧化还原平衡方面发挥着重要作用,发展对巯基生物小分子的新的检测方法有着重要意义。最近我们基于两步反应机制,发展了高选择性检测GSH的新型荧光探针。如Fig.1所示,荧光探针氯代BODIPY可以和巯基

关键词： biothiols fluorescent sensors BODIPY

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A water-soluble fluorescent chemosensor for Zinc based on Am...