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Ji SL, Xiao SS, Wang LL. Construction of an ultra-small hydrazone-linked covalent organic polymer for selective fluorescent detection of ferric ion in aqueous solution. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2022; 280:121541. [PMID: 35753102 DOI: 10.1016/j.saa.2022.121541] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 06/15/2022] [Accepted: 06/17/2022] [Indexed: 06/15/2023]
Abstract
A novel ultra-small hydrazone-linked covalent organic polymer (UHCOP) was synthesized based on the Schiff-base reaction between 2,4,6-trihydroxy-1,3,5-benzenetricarbaldehyde and 1,4-benzenedicarbohydrazide at room temperature and utilized as a sensitive fluorescent sensor for rapid (<2 min) and selective detection of Fe3+ in aqueous solution. The prepared UHCOP displayed ultra-small size with the diameter of 7.98 ± 0.97 nm and gave a stable fluorescent emission at 510 nm. UHCOP exhibited good sensitivity and highly selectivity towards Fe3+. The coordination interaction between UHCOP and Fe3+ resulted in the obviously aggregation-caused quenching response of UHCOP. The linear range was from 5.0 μM to 1.4 mM (R2 = 0.999) with the detection limit of 2.5 μM. Finally, UHCOP has been successfully applied in the detection of Fe3+ in real water samples, proving the fabricated UHCOP is promising as a sensitive fluorescent sensor for selective detection of Fe3+ in aqueous solution.
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Affiliation(s)
- Shi-Lei Ji
- Institute of BioPharmaceutical Research, Liaocheng University, Liaocheng 252059, China.
| | - Shan-Shan Xiao
- Institute of BioPharmaceutical Research, Liaocheng University, Liaocheng 252059, China
| | - Lu-Liang Wang
- School of Food Engineering, Ludong University, Yantai 264025, China
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Yu C, Zheng Q, Wang L, Wang T, Zheng X, Gao G. A prototype of benzobis(imidazolium)-embedded conjugated polyelectrolyte: Synthesis by direct C‒H arylation and fluorescent responses to anions. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.09.092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Fu X, Dong W, Liu C, Han J, Huang C. Cationic conjugated polymer-based FRET aptasensor for label-free and ultrasensitive ractopamine detection. RSC Adv 2022; 12:10911-10914. [PMID: 35425041 PMCID: PMC8987537 DOI: 10.1039/d2ra00574c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Accepted: 03/22/2022] [Indexed: 11/21/2022] Open
Abstract
A label-free fluorescence resonance energy transfer (FRET) platform based on cationic conjugated polymers and aptamers for ultrasensitive and specific ractopamine detection was constructed. This method exhibited a wide linear range from 0.05 to 500 μM and a low limit of detection of 47 nM, which make it an attractive assay platform for foodborne doping. A label-free fluorescence resonance energy transfer (FRET) platform based on cationic conjugated polymers and aptamer has established for ultrasensitive and specific ractopamine (RAC) detection.![]()
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Affiliation(s)
- Xuancheng Fu
- School of Sport Science, Beijing Sport University, Beijing 100084, China
- Institute of Anti-Doping in China, Beijing Sport University, Beijing 100084, China
| | - Wei Dong
- School of Sport Science, Beijing Sport University, Beijing 100084, China
- Institute of Anti-Doping in China, Beijing Sport University, Beijing 100084, China
| | - Chang Liu
- School of Sport Science, Beijing Sport University, Beijing 100084, China
- Institute of Anti-Doping in China, Beijing Sport University, Beijing 100084, China
| | - Jing Han
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences, Beijing 100190, P. R. China
| | - Chengzhi Huang
- Key Laboratory of Luminescent and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Pharmaceutical Sciences, Southwest University, Chongqing 400715, China
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Fu X, Gou M, Zhang Y, Su H, Zhao H, Liu C, Han J. Simultaneous and visual detection of multiple dopes by an aptamer/AuNPs sensor. NEW J CHEM 2022. [DOI: 10.1039/d2nj03938a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Through introducing multiple aptamers in a suitable ratio, we achieved the simultaneous and visual detection of three dopes in one sensor.
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Affiliation(s)
- Xuancheng Fu
- School of Sport Science, Beijing Sport University, Beijing 100084, China
- Institute of Anti-Doping in China, Beijing Sport University, Beijing 100084, China
| | - Miaomiao Gou
- The Fifth Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - Yong Zhang
- The Second Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - Hao Su
- School of Sport Science, Beijing Sport University, Beijing 100084, China
| | - Haotian Zhao
- School of Sport Science, Beijing Sport University, Beijing 100084, China
| | - Chang Liu
- School of Sport Science, Beijing Sport University, Beijing 100084, China
- Institute of Anti-Doping in China, Beijing Sport University, Beijing 100084, China
| | - Jing Han
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry Chinese Academy of Sciences, Beijing, 100190, China
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Liang Y, Li Z, Yuan H, Wang L, Gao LH. Poly(p-phenylenevinylene) nanoparticles modified with antiEGFRvIII for specific glioblastoma therapy. Sci Rep 2021; 11:4449. [PMID: 33627737 PMCID: PMC7904835 DOI: 10.1038/s41598-021-83931-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2020] [Accepted: 02/08/2021] [Indexed: 12/11/2022] Open
Abstract
Glioblastoma is the most common primary brain cancer and it is nearly impossible to remove the entire tumor with surgery or a single drug. EGFRvIII is the most frequent genetic change associated with glioblastoma, so EGFRvIII-based targeting therapies provide promise for treating glioblastoma. Herein, poly[2-methoxy-5-(2'-ethylhexyloxy)-p-phenylenevinylene] (PPV) was used as the core to prepare a conjugated polymer nanoparticle (PPVN) modified with anti-EGFRvIII (PPVN-A) that exhibited high ROS generation ability under white light irradiation. PPVN-A could target EGFRvIII-overexpressed tumor cells and damaged more than 90% of tumor cells with the light illumination while PPVN without modification exhibited no obvious cytotoxicity toward these cells under the same condition. Thus, the photodynamic treatment of glioblastoma cells using PPVN-A could be achieved, indicating the potential of anti-EGFRvIII-modified nanoparticles as a therapeutic material for treating glioblastoma in clinic.
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Affiliation(s)
- Yuchao Liang
- Neurosurgery Department, Beijing Tian Tan Hospital, Capital Medical University, Beijing, 100070, People's Republic of China
| | - Zelin Li
- Department of Chemistry, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, 100048, People's Republic of China
| | - Huanxiang Yuan
- Department of Chemistry, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, 100048, People's Republic of China.
| | - Lei Wang
- Neurosurgery Department, Beijing Tian Tan Hospital, Capital Medical University, Beijing, 100070, People's Republic of China.
| | - Li-Hua Gao
- Department of Chemistry, College of Chemistry and Materials Engineering, Beijing Technology and Business University, Beijing, 100048, People's Republic of China.
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Wang H, Zhou S, Guo L, Wang Y, Feng L. Intelligent Hybrid Hydrogels for Rapid In Situ Detection and Photothermal Therapy of Bacterial Infection. ACS APPLIED MATERIALS & INTERFACES 2020; 12:39685-39694. [PMID: 32805886 DOI: 10.1021/acsami.0c12355] [Citation(s) in RCA: 60] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Diseases induced by bacterial infections increasingly threaten the health of people all over the world; thus, it is urgent and significant to early diagnose and effectively eliminate infections to save people's lives. To this end, we synthesized an intelligent hydrogel that integrated in situ visualized diagnosis and photothermal therapy of bacterial infections. By simply and subtly incorporating pH-sensitive bromothymol blue (BTB) and near-infrared (NIR)-absorbing conjugated polymer (termed as PTDBD) into thermosensitive chitosan (CS)-based hydrogel, the synthesized BTB/PTDBD/CS hydrogel can diagnose the acidic microenvironment of Staphylococcus aureus (S. aureus) biofilm and infected wounds by showing visualized color change. After rapid diagnosis, the hydrogel can immediately treat the infection site by local hyperthermia under irradiation of NIR laser (808 nm) and even the stubborn biofilm that is difficult to eradicate. Since the dominating antibacterial mechanism is hyperthermia, the hybrid hydrogel shows broad-spectrum antibacterial activity against Gram-positive, Gram-negative, and drug-resistant bacteria. In addition, it has low cytotoxicity to normal cells and no effect on the main organs of mice. It paves a brand new avenue to develop smart and facile diagnosis and a treatment platform for bacterial infections.
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Affiliation(s)
- Haoping Wang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, P. R. China
| | - Sirong Zhou
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, P. R. China
| | - Lixia Guo
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, P. R. China
| | - Yunxia Wang
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, P. R. China
| | - Liheng Feng
- School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan 030006, P. R. China
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Liang Y, Zhang H, Yuan H, Lu W, Li Z, Wang L, Gao LH. Conjugated Polymer and Triphenylamine Derivative Codoped Nanoparticles for Photothermal and Photodynamic Antimicrobial Therapy. ACS APPLIED BIO MATERIALS 2020; 3:3494-3499. [PMID: 35025220 DOI: 10.1021/acsabm.0c00320] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- Yuchao Liang
- Neurosurgery Department, Beijing Tian Tan Hospital, Capital Medical University, Beijing 100050, P. R. China
| | - Hongjuan Zhang
- Department of Chemistry, Beijing Technology and Business University, Beijing 100048, P. R. China
| | - Huanxiang Yuan
- Department of Chemistry, Beijing Technology and Business University, Beijing 100048, P. R. China
| | - Wen Lu
- Department of Chemistry, Beijing Technology and Business University, Beijing 100048, P. R. China
| | - Zelin Li
- Department of Chemistry, Beijing Technology and Business University, Beijing 100048, P. R. China
| | - Lei Wang
- Neurosurgery Department, Beijing Tian Tan Hospital, Capital Medical University, Beijing 100050, P. R. China
| | - Li-Hua Gao
- Department of Chemistry, Beijing Technology and Business University, Beijing 100048, P. R. China
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Duan M, Xia F, Li T, Shapter JG, Yang S, Li Y, Gao G, Cui D. Matrix metalloproteinase-2-targeted superparamagnetic Fe 3O 4-PEG-G5-MMP2@Ce6 nanoprobes for dual-mode imaging and photodynamic therapy. NANOSCALE 2019; 11:18426-18435. [PMID: 31576881 DOI: 10.1039/c9nr06774d] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
This work explored the application of matrix metalloproteinase 2-targeted superparamagnetic nanoprobes for magnetic resonance imaging (MRI), near infrared (NIR) fluorescence imaging and photodynamic therapy of tumors. PEG, PAMAM (G5) and matrix metalloproteinase 2 (MMP2) were attached to the surface of carboxylated Fe3O4 nanoparticles (NPs) using a chemical coupling method and then finally loaded with the photosensitizer chlorin e6 (Ce6). In vitro and in vivo experiments demonstrated that the Fe3O4-PEG-G5-MMP2@Ce6 nanoprobes exhibited excellent stability, precise tumor targeting and biocompatibility. Furthermore, the fluorescence properties of Fe3O4-PEG-G5-MMP2@Ce6 nanoprobes were analogous to Ce6 and could be employed for fluorescence imaging. Meanwhile, the Fe3O4-PEG-G5-MMP2@Ce6 nanoprobes have also been shown to be effective as contrast agents for T2-weighted MRI. The target molecule MMP2 enhanced the tumor targeting ability of Fe3O4-PEG-G5-MMP2@Ce6 nanoprobes. Additionally, the Fe3O4-PEG-G5-MMP2@Ce6 nanoprobes significantly inhibited tumor growth compared with PBS and free Ce6. This work will inspire greater enthusiasm for the construction of multifunctional magnetic nanoplatforms for biomedical applications.
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Affiliation(s)
- Meng Duan
- Institute of Nano Biomedicine and Engineering, Key Laboratory for Thin Film and Micro Fabrication of the Ministry of Education, Department of Instrument Science and Technology, School of Electronic Information and Electrical Engineering, Shanghai Jiao Tong University, Shanghai, China.
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