通讯机构：
[Prof. Sheng Hua Liu] K;Key Laboratory of Pesticide and Chemical Biology, Ministry of Education, College of Chemistry, Central China Normal University, Wuhan, 430079 P.R. China
关键词：
mechanochromic;near-infrared region osmaindenes;osmanaphthalynes
作者机构：
[Zhang, Chen; Tan, Ying; Zhang, Jiewen; Liu, Feng; Zang, Kun] Tsinghua Univ, State Key Lab Chem Oncogen, Key Lab Chem Biol, Tsinghua Shenzhen Int Grad Sch, Shenzhen 518055, Peoples R China.;[Xu, Zhiqiang; Yin, Jun] Cent China Normal Univ, Coll Chem, Key Lab Pesticide & Chem Biol, Minist Educ, Wuhan 430079, Peoples R China.;[Jiang, Yuyang] Tsinghua Univ, Sch Pharmaceut Sci, Beijing 100084, Peoples R China.
通讯机构：
[Tan, Ying] T;[Yin, Jun] C;Tsinghua Univ, State Key Lab Chem Oncogen, Key Lab Chem Biol, Tsinghua Shenzhen Int Grad Sch, Shenzhen 518055, Peoples R China.;Cent China Normal Univ, Coll Chem, Key Lab Pesticide & Chem Biol, Minist Educ, Wuhan 430079, Peoples R China.
摘要：
Hydrogen sulfide (H2S), a well-known signaling molecule, exerts significant regulatory effects on the cardiovascular and nervous systems. Therefore, monitoring the metabolism of H2S offers a potential mechanism to detect various diseases. In addition, biotin is significantly used as a targeting group to detect cancer cells exclusively. In this work, a biotin-guided benzoxadizole-based fluorescent probe, NP-biotin, was developed for H2S detection and evaluated in normal liver cell (LO2) and liver cancer cell (HepG2) lines. Results reveal that NP-biotin can detect cellular H2S with high sensitivity and selectivity. Moreover, NP-biotin has been confirmed to possess the ability to target cancer cells under the guidance of the biotin group.
期刊：
Results in Chemistry,2020年2:100082 ISSN：2211-7156
通讯作者：
Mingqiang Qiu<&wdkj&>Jun Yin
作者机构：
[Yurou Huang; Yingle Pan; Xiaoyan Zeng; Mingqiang Qiu; Jun Yin] Key Laboratory of Pesticide and Chemical Biology, Ministry of Education Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan 430079, PR China
通讯机构：
[Mingqiang Qiu; Jun Yin] K;Key Laboratory of Pesticide and Chemical Biology, Ministry of Education Hubei International Scientific and Technological Cooperation Base of Pesticide and Green Synthesis, International Joint Research Center for Intelligent Biosensing Technology and Health, College of Chemistry, Central China Normal University, Wuhan 430079, PR China
摘要：
Photothermal therapy has the advantages of low toxicity, short treatment time, strong controllability, outstanding therapeutic effect. The photothermal conversion efficiency of photothermal agents by converting light energy into heat energy is of great significance for the therapeutic effect. In this work, the dithienylethene-based photochromic switch was firstly employed to regulate the photothermal conversion efficiency of a hemicyanine dye. The result showed that the dithienylethene-coating hemicyanine had an anticipated performance of photo-controlling photothermal conversion. The investigation provides a new idea for the design of novel photothermal agents.
摘要：
Novel classes of contorted hexabenzocoronenes (c-HBCs) which exhibit a doubly concave configuration were synthesized by using hexabenzocoronene as bridge ligand and diphenylamine/triphenylamine as the redox-active termini. Although the analysis of the crystal structures of tri-di(4-methoxyphenyl) amino-substituted HBC (1), trimethoxy-substituted HBC (3) and tri(triphenylamine)-substituted HBC (4) show that the peripheral modified arylamine groups have a certain influence on the interaction force between molecules, the results of UV-vis absorption and fluorescence emission spectra indicate that these arylamine-modified hexabenzocoronenes have similar photophysical properties, which are primarily regulated by the c-HBC center. Subsequent electrochemical tests found that these compounds have multi-step redox process, and there is a certain degree of overlap between the arylamine and arylamine or between the arylamine and the bridge (c-HBC) during the oxidation process. Combining the UV-vis-NIR spectroelectrochemistry with the density functional theory (DFT) calculations, we further explored the electronic characters of the neutral and one-electron oxidation states of tri-di(4-methoxyphenyl)amino-substituted HBC (1), trimethoxy-substituted HBC (3) and tri(triphenylamine)substituted HBC (4). (C) 2020 Elsevier Ltd. All rights reserved.
摘要：
The different oxidation states of sulphur atom play a significant role on functional materials. In this work, a aryl-thioether and its sulphone substituted benzo[c][1,2,5]oxadiazole dyes were synthesized and utilized to determine thiol-containing amino acids. The result of selectivity experiments showed they detected the cysteine and homocysteine under physiological condition with negligible interference from other amino acids. In comparison to the thioether dye, the sulphone-based dye exhibited much faster response time for Cys and Hcy. However, the sulphone restricted its thiol-reactivity and bioimaging performance in living cells. By reducing the oxidation state of sulphur atom, we amazedly found that the sulfoxide-based dye still maintained high selectivity ultrafast response time for Cys/Hcy under physiological condition. It was worth mentioning that it also had high reactivity and good bioimaging performance that sulfone compounds did not have.
作者机构：
[Yin, Jun] Cent China Normal Univ, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China.;Cent China Normal Univ, Hubei Int Sci & Technol Cooperat Base Pesticide &, Wuhan 430079, Peoples R China.;Cent China Normal Univ, Int Joint Res Ctr Intelligent Biosensing Technol, Wuhan 430079, Peoples R China.;Cent China Normal Univ, Coll Chem, Wuhan 430079, Peoples R China.
通讯机构：
[Yin, Jun] C;Cent China Normal Univ, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China.
关键词：
Near-infrared heptamethine;cyanines (Cy7) from structure;property to application
摘要：
Heptamethine cyanine dyes (Cy7) have attracted much attention in the field of biological application due to their unique structure and attractive near infrared (NIR) photophysical properties. In this review, the influences of different modification sites on the absorption characteristics, photostability, Stokes shift, fluorescence characteristics, water solubility, and singlet oxygen generation efficiency of this class of dyes are summarized, and the application development of the corresponding dyes in the field of biological application is introduced, which will provide a reference for the optimization and improvement of heptamethine cyanine dyes in the future.
期刊：
JOURNAL OF MATERIALS CHEMISTRY B,2020年8(43):9906-9912 ISSN：2050-750X
通讯作者：
Yin, Jun;Tan, Ying
作者机构：
[Liu, Sheng Hua; Feng, Lan; Yin, Jun; Ma, Xiaoxie] Cent China Normal Univ, Hubei Int Sci & Technol Cooperat Base Pesticide &, Int Joint Res Ctr Intelligent Biosensing Technol, Coll Chem,Minist Educ,Key Lab Pesticide & Chem Bi, Wuhan 430079, Peoples R China.;[Zhang, Chen; Tan, Ying] Tsinghua Univ, Grad Sch Shenzhen, State Key Lab Chem Oncogen, Key Lab Chem Biol, Shenzhen 518055, Peoples R China.
通讯机构：
[Yin, Jun] C;[Tan, Ying] T;Cent China Normal Univ, Hubei Int Sci & Technol Cooperat Base Pesticide &, Int Joint Res Ctr Intelligent Biosensing Technol, Coll Chem,Minist Educ,Key Lab Pesticide & Chem Bi, Wuhan 430079, Peoples R China.;Tsinghua Univ, Grad Sch Shenzhen, State Key Lab Chem Oncogen, Key Lab Chem Biol, Shenzhen 518055, Peoples R China.
摘要：
IR780 as a commercially available dye with near-infrared emission has been extensively applied in fluorescent probes and bioimaging. In this work, to further intensify the optical behavior, a tetrahydropyridine ring was used to replace the cyclohexene ring at the center of IR780, forming a cyanine dye Cy-NH with near-infrared emission. Photophysical properties demonstrated that Cy-NH exhibits good optical performance. In particular, Cy-NH contains two functional reaction sites (e.g. Cl and NH sites on the tetrahydropyridine ring) and can be used to construct functional cyanine dyes. Investigation on imaging showed that these cyanines can be used as near-infrared fluorescent imaging agents in living cells and in vivo.
期刊：
Journal of Materials Chemistry C,2020年8(3):894-899 ISSN：2050-7526
通讯作者：
Zhang, Jing;Liu, Sheng Hua;Tang, Ben Zhong
作者机构：
[Zhang, J; Liu, SH; Zhang, Jing; Liu, Sheng Hua; Yin, Jun; Dong, Yubao] Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China.;[Zhang, Jing; Gong, Junyi; He, Benzhao; Zhang, J; Tang, Ben Zhong] Hong Kong Univ Sci & Technol, Chinese Natl Engn Res Ctr Tissue Restorat & Recon, Dept Chem & Biol Engn, Dept Chem,Hong Kong Branch,Inst Adv Study,Kowloon, Clear Water Bay, Hong Kong, Peoples R China.;[Zhang, Jing; Gong, Junyi; He, Benzhao; Zhang, J; Tang, Ben Zhong] Hong Kong Univ Sci & Technol, Inst Mol Funct Mat, Kowloon, Clear Water Bay, Hong Kong, Peoples R China.;[Xu, Shuping; Li, Aisen] Jilin Univ, Coll Chem, State Key Lab Supramol Struct & Mat, Changchun 130012, Peoples R China.;[Liu, Sheng Hua] Chinese Acad Sci, Fujian Inst Res Struct Matter, State Key Lab Struct Chem, Fuzhou 350002, Peoples R China.
通讯机构：
[Zhang, J; Liu, SH; Liu, Sheng Hua] C;[Zhang, J; Tang, BZ] H;Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China.;Hong Kong Univ Sci & Technol, Chinese Natl Engn Res Ctr Tissue Restorat & Recon, Dept Chem & Biol Engn, Dept Chem,Hong Kong Branch,Inst Adv Study,Kowloon, Clear Water Bay, Hong Kong, Peoples R China.;Hong Kong Univ Sci & Technol, Inst Mol Funct Mat, Kowloon, Clear Water Bay, Hong Kong, Peoples R China.
摘要：
Stimuli-responsive luminescent materials, which show various luminescence alterations upon the introduction of external mechanical forces, have attracted extraordinary attention owing to their promising applications in smart materials. Amongst, the phenomena of self-recovered mechanochromic luminescence constitute only a small proportion, and relevant systematic explorations are extremely limited. Here, we developed a series of new Au(i) complexes (AuIB-Cn, n = 5-10) featuring aggregation-induced emission properties, and systematically studied their solid-state self-recovery properties. We showed that the self-recovery speed could be elaborately tuned by introducing alkyl chains of different lengths, or changing the temperature. Increasing the alkyl chain length could speed up the self-recovery due to much faster intermolecular rearrangements. Lowering the temperature allowed for the capture of the originally superfast and unobservable self-recoveries of C8-C10 due to the decreased molecular mobility. In addition, we also demonstrated the great potentials of these AIE-active complexes serving as self-erasing rewritable paper and anti-counterfeit carbonless copy paper in practical applications.
期刊：
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY,2020年239:118465 ISSN：1386-1425
通讯作者：
Yin, Jun
作者机构：
[Liu, Sheng Hua; Guan, Yihan; Yin, Jun; Ye, Fengying; Li, Guangjin] Cent China Normal Univ, Coll Chem, Int Joint Res Ctr Intelligent Biosensing Technol, Key Lab Pesticide & Chem Biol,Minist Educ,Hubei I, Wuhan 430079, Peoples R China.
通讯机构：
[Yin, Jun] C;Cent China Normal Univ, Coll Chem, Int Joint Res Ctr Intelligent Biosensing Technol, Key Lab Pesticide & Chem Biol,Minist Educ,Hubei I, Wuhan 430079, Peoples R China.
摘要：
A commercial cyanine dye IR-780 and a thioether-containing dicarboxylic acid ligand were used to construct the near-infrared fluorescent probe, which was used as a near-infrared fluorescent indicator for the determination of mercury ions in water and in living cells. This indicator displayed high specificity towards Hg(2+) without any interference from other detecting species. Especially, the emission at 790nm dramatically increased more than 25 times after interacting with Hg(2+). The binding experiment showed that the indicator formed 1:1 complex with Hg(2+). More, this indicator could be applied in the visualization of Hg(2+) in living cells and measuring the Hg(2+) concentration of tap-water sample.
摘要：
Biomedical detection needs to develop more detection methods and reagents. CuFeS2, an I-III-IV ternary semiconductor material, has attracted great interest of researchers because of its optical, electrical, low toxicity and controllable chemical synthesis. Here, we synthesized CuFeS2 quantumdots (QDs) with hot-injectionmethod and their ECL behaviors were investigated for the first time, involving the co-reactant anode/cathode ECL emission and the related ECL mechanism. Moreover, a novel ECL immunosensor based on CuFeS2 QDs for the ultrasensitive detection of Cyclin D1 (CCND1) was designed and prepared. CuFeS2 QDs with uniform size and excellent optical properties were used as ECL emitters and Carboxyl Fe3O4 magnetic beads (MB) were utilized for magnetic separation of CCND1 from MCF-7 cells treated by sophora frevescens. In addition, reduced graphene oxide (rGO) andAuNPs by electrodeposition not only provided plentiful active sites for the immobilization of anti-CCND1 (primary antibody, Ab(1)), but also enhanced the conductivity of the electrode. Results indicated that under the optimal condition, the ECL signal was proportional to the logarithmic of CCND1 concentration in the linear range from 40 fg/mL to 0.8 mu g/mL with a detection limit of 15.8 fg/mL. Further, the good reproducibility, stability and selectivity of the as-prepared ECL immunosensor were also proved. Significantly, the anticancer effect of sophora frevescens on MCF-7 cells was investigated through quantitative analysis of overexpression of CCND1, which was related to proliferation of cancer cells. This research indicated the ECL immunosensor we suggested could offer great potential for the follow-up research in clinical diagnosis and anticancer drug screening.
