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Zeng H, Zhou S, Xie L, Liang Q, Zhang X, Yan M, Huang Y, Liu T, Chen P, Zhang L, Liang K, Jiang L, Kong B. Super-assembled mesoporous thin films with asymmetric nanofluidic channels for sensitive and reversible electrical sensing. Biosens Bioelectron 2023; 222:114985. [PMID: 36493724 DOI: 10.1016/j.bios.2022.114985] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2022] [Revised: 11/28/2022] [Accepted: 11/30/2022] [Indexed: 12/03/2022]
Abstract
Bioinspired artificial nanochannels have emerged as promising candidates for developing smart nanofluidic sensors due to their highly controllable size and surface functionality. However, little attention has been paid to the role of the outer surface of the nanochannels in enhancing the detection sensitivity. Herein, an asymmetric nanochannel-based responsive detection platform with ultrathin tannic acid modified mesoporous silica (TA-MS) layer and alumina oxide (AAO) thin film is prepared through super-assembly strategy. The functional TA-MS outer surface layer provides abundant phenolic groups on the nanochannels for ions and molecules transport, which paves the way for the development of heterochannels for label-free, reversible and highly sensitive dopamine (DA) detection based off of cation displacement effect. Notably, by engineering optimal thickness of the TA-MS, the sensing performance can be further improved. After optimization, the linear response ranges for DA detection are 0.001-1 μM, 1-10 μM and 10-200 μM with the detection limit of 0.1 nM. The prepared sensor exhibits stable reversibility after several detection cycles. In addition, this method was successfully applied for DA detection in fetal bovine serum sample. Theoretical calculations further prove the detection mechanism. This work opens a new horizon of using mesoporous materials to construct nanofluidic sensors for ultrasensitive small molecule detection and recognition.
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Affiliation(s)
- Hui Zeng
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438, PR China
| | - Shan Zhou
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438, PR China
| | - Lei Xie
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438, PR China
| | - Qirui Liang
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438, PR China
| | - Xin Zhang
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438, PR China
| | - Miao Yan
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438, PR China
| | - Yanan Huang
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438, PR China
| | - Tianyi Liu
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438, PR China
| | - Pu Chen
- Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - Lei Zhang
- Department of Chemical Engineering, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada
| | - Kang Liang
- School of Chemical Engineering and Graduate School of Biomedical Engineering, The University of New South Wales, Sydney, NSW, 2052, Australia
| | - Lei Jiang
- CAS Key Laboratory of Bio-Inspired Materials and Interfacial Science, Technical Institute of Physics and Chemistry, Chinese Academy of Science, Beijing, 100190, PR China
| | - Biao Kong
- Department of Chemistry, Shanghai Key Lab of Molecular Catalysis and Innovative Materials and Collaborative Innovation Center of Chemistry for Energy Materials, Fudan University, Shanghai, 200438, PR China; Yiwu Research Institute of Fudan University, Yiwu, Zhejiang, 322000, PR China.
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Chen L, Wu Y, Zhang D, Cao S, Xu L, Li Y. Smart Nano‐switch with Flexible Modulation of Ion Transport Using Multiple Environmental Stimuli. Chem Asian J 2022; 17:e202200884. [DOI: 10.1002/asia.202200884] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2022] [Revised: 09/30/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Li‐Dong Chen
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 P. R. China
| | - Yuan‐Yi Wu
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 P. R. China
| | - Di Zhang
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 P. R. China
| | - Shuo‐Hui Cao
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 P. R. China
- Department of Electronic Science Xiamen University Xiamen 361005 P. R. China
| | - Lin‐Tao Xu
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 P. R. China
| | - Yao‐Qun Li
- Department of Chemistry and the MOE Key Laboratory of Spectrochemical Analysis & Instrumentation College of Chemistry and Chemical Engineering Xiamen University Xiamen 361005 P. R. China
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Yu X, Li C, Chang J, Wang Y, Xia W, Suo J, Guan X, Valtchev V, Yan Y, Qiu S, Fang Q. Gating Effects for Ion Transport in Three-Dimensional Functionalized Covalent Organic Frameworks. Angew Chem Int Ed Engl 2022; 61:e202200820. [PMID: 35072979 DOI: 10.1002/anie.202200820] [Citation(s) in RCA: 12] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2022] [Indexed: 12/12/2022]
Abstract
The development of bioinspired nano/subnano-sized (<2 nm) ion channels is still considered a great challenge due to the difficulty in precisely controlling pore's internal structure and chemistry. Herein, for the first time, we report that three-dimensional functionalized covalent organic frameworks (COFs) can act as an effective nanofluidic platform for intelligent modulation of the ion transport. By strategic attachment of 12-crown-4 groups to the monomers as ion-driver door locks, we demonstrate that gating effects of functionalized COFs can be activated by lithium ions. The obtained materials exhibit an outstanding selective ion transmission performance with a high gating ratio (up to 23.6 for JUC-590), which is among the highest values in metal ion-activated solid-state nanochannels reported so far. Furthermore, JUC-590 offers high tunability, selectivity, and recyclability of ion transport proved by the experimental and simulated studies.
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Affiliation(s)
- Xiuqin Yu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012, China
| | - Cuiyan Li
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012, China
| | - Jianhong Chang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012, China
| | - Yujie Wang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012, China
| | - Weifeng Xia
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012, China
| | - Jinquan Suo
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012, China
| | - Xinyu Guan
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012, China
| | - Valentin Valtchev
- Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, 189 Song Ling Rd, Qingdao, Shandong, 266101, China.,Normandie Univ, ENSICAEN, UNICAEN, CNRS, Laboratoire Catalyse et Spectrochimie, 6 Marechal Juin, 14050, Caen, France
| | - Yushan Yan
- Department of Chemical and Biomolecular Engineering, Center for Catalytic Science and Technology, University of Delaware, Newark, DE 19716, USA
| | - Shilun Qiu
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012, China
| | - Qianrong Fang
- State Key Laboratory of Inorganic Synthesis and Preparative Chemistry, Jilin University, Changchun, 130012, China
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4
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Yu X, Li C, Chang J, Wang Y, Xia W, Suo J, Guan X, Valtchev V, Yan Y, Qiu S, Fang Q. Gating Effects for Ion Transport in Three‐Dimensional Functionalized Covalent Organic Frameworks. Angew Chem Int Ed Engl 2022. [DOI: 10.1002/ange.202200820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Xiuqin Yu
- Jilin University College of Chemistry CHINA
| | - Cuiyan Li
- Jilin University College of Chemistry CHINA
| | | | - Yujie Wang
- Jilin University College of Chemistry CHINA
| | | | | | - Xinyu Guan
- Jilin University College of Chemistry CHINA
| | - Valentin Valtchev
- Normandie Université: Normandie Universite Laboratoire Catalyse et Spectrochimie FRANCE
| | - Yushan Yan
- University of Delaware Chemical and Biomolecular Engineering UNITED STATES
| | - Shilun Qiu
- Jilin University College of Chemistry 2699 Qianjin StreetChangchun 130118 Changchun CHINA
| | - Qianrong Fang
- Jilin University Department of Chemistry 2699 Qianjin Street 130012 Changchun CHINA
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6
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Wang D, Cheng H, Che C, Wu X, Feng Y, Gao P, Xia F. Size and density adjustment of nanostructures in nanochannels for screening performance improvement. RSC Adv 2021; 11:2325-2328. [PMID: 35424203 PMCID: PMC8693674 DOI: 10.1039/d0ra10097h] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2020] [Accepted: 12/25/2020] [Indexed: 11/25/2022] Open
Abstract
Biomimetic solid-state nanochannel/nanopore with flexible geometric structures, mechanical robustness and multifunctional surfaces have attracted extensive attention in separation, catalysis, drug delivery and other fields. Nanostructures have been introduced in nanoconfines to compress substances passthrough for high-efficient screening. However, precise controls of the nanostructure's growth in nanoconfines is rare. Herein, we developed a method to control size and number density of nanoparticles in nanochannels by adjusting polydopamine reducing conditions, achieving (1) particle size increasing, density increasing; (2) particle size increasing, density decreasing; (3) particle size increasing, density invariant; (4) particle size invariant, density increasing. The nanoparticles compressed the space of functional molecules decorated on them. Increasing size and density of nanoparticle enhanced the steric hinderance of functional molecules decorated on them and improved the wetting and chirality screening through nanochannels.
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Affiliation(s)
- Dagui Wang
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences Wuhan 430074 P. R. China
| | - Hongli Cheng
- State Key Laboratory of Material Processing and Die & Mould Technology, School of Material Sciences and Engineering, Huazhong University of Science and Technology (HUST) Wuhan 430074 P. R. China
| | - Cheng Che
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences Wuhan 430074 P. R. China
| | - Xiaoqing Wu
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences Wuhan 430074 P. R. China
| | - Yuezhan Feng
- Key Laboratory of Advanced Materials Processing & Mold (Ministry of Education), National Engineering Research Center for Advanced Polymer Processing Technology, Zhengzhou University Zhengzhou 450002 China
| | - Pengcheng Gao
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences Wuhan 430074 P. R. China
| | - Fan Xia
- Engineering Research Center of Nano-Geomaterials of Ministry of Education, Faculty of Materials Science and Chemistry, China University of Geosciences Wuhan 430074 P. R. China
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Han Y, Sun Z, Sun Z, Chen X, Zhang Y, Sun Y, Li H. Engineering a NO‐Regulated Nanofluidic Sensor through the Cyclization Reaction Strategy. Chemistry 2020; 26:11099-11103. [DOI: 10.1002/chem.202001089] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Indexed: 12/13/2022]
Affiliation(s)
- Yunfeng Han
- Department of Nuclear MedicineUnion HospitalTongji Medical CollegeHuazhong University of Science and Technology Wuhan 430022 P. R. China
- Department of Nuclear MedicineTongji HospitalTongji Medical CollegeHuazhong University of Science and Technology Wuhan 430030 P. R. China
| | - Zhongyue Sun
- Key laboratory of Pesticides and Chemical BiologyMinistry of EducationCollege of ChemistryCentral China Normal University Wuhan 430079 P. R. China
- School of Laboratory MedicineHubei University of Chinese Medicine Wuhan 430065 P. R. China
| | - Ziyan Sun
- Department of RadiologyTongji HospitalTongji Medical CollegeHuazhong University of Science and Technology Wuhan 430030 P. R. China
| | - Xiaoya Chen
- Key laboratory of Pesticides and Chemical BiologyMinistry of EducationCollege of ChemistryCentral China Normal University Wuhan 430079 P. R. China
| | - Yongxue Zhang
- Department of Nuclear MedicineUnion HospitalTongji Medical CollegeHuazhong University of Science and Technology Wuhan 430022 P. R. China
| | - Yao Sun
- Key laboratory of Pesticides and Chemical BiologyMinistry of EducationCollege of ChemistryCentral China Normal University Wuhan 430079 P. R. China
| | - Haibing Li
- Key laboratory of Pesticides and Chemical BiologyMinistry of EducationCollege of ChemistryCentral China Normal University Wuhan 430079 P. R. China
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8
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Chen H, Xu L, Tuo W, Chen X, Huang J, Zhang X, Sun Y. Fabrication of a Smart Nanofluidic Biosensor through a Reversible Covalent Bond Strategy for High-Efficiency Bisulfite Sensing and Removal. Anal Chem 2020; 92:4131-4136. [DOI: 10.1021/acs.analchem.0c00131] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Huan Chen
- Key Laboratory of Pesticides and Chemical Biology, Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, Center of Chemical Biology, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, China
- Ministry of Education Key Laboratory for the Synthesis and Application of Organic Functional Molecules, Hubei University, Wuhan, Hubei 430062, China
| | - Liying Xu
- Department of Radiology, Zhongnan Hospital of Wuhan University, Wuhan, Hubei 43007, China
| | - Wei Tuo
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112, United States
| | - Xiaoya Chen
- CAS Key Laboratory of Nano-Bio Interface, Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou, Jiangsu 215123, China
| | - Jinmei Huang
- Key Laboratory of Pesticides and Chemical Biology, Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, Center of Chemical Biology, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, China
| | - Xin Zhang
- Key Laboratory of Pesticides and Chemical Biology, Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, Center of Chemical Biology, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, China
| | - Yao Sun
- Key Laboratory of Pesticides and Chemical Biology, Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, Center of Chemical Biology, College of Chemistry, Central China Normal University, Wuhan, Hubei 430079, China
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Xiao T, Ma J, Jiang J, Gan M, Lu B, Luo R, Liu Q, Zhang Q, Liu Z, Zhai J. Rod-Cell-Mimetic Photochromic Layered Ion Channels with Multiple Switchable States for Controllable Ion Transport. Chemistry 2019; 25:12795-12800. [PMID: 31376182 DOI: 10.1002/chem.201902450] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 07/19/2019] [Indexed: 01/10/2023]
Abstract
The controllable ion transport in the photoreceptors of rod cells is essentially important for the light detection and information transduction in visual systems. Herein, inspired by the photochromism-regulated ion transport in rod cells with stacking structure, layered ion channels have been developed with a visual photochromic function induced by the alternate irradiation with visible and UV light. The layered structure is formed by stacking spiropyran-modified montmorillonite 2D nanosheets on the surface of an alumina nanoporous membrane. The visual photochromism resulting from the photoisomerization of spiropyran chromophores reversibly regulates the ion transport through layered ion channels. Furthermore, the cooperation of photochromism and pH value achieves multiple switchable states of layered ion channels for the controllable ion transport mimicking the biological process of the visual cycle. The ion transport properties of these states are explained quantitatively by a theoretical calculation based on the Poisson and Nernst-Plank (PNP) equations.
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Affiliation(s)
- Tianliang Xiao
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Jing Ma
- School of Space and Environment, Beihang University, Beijing, 100124, P. R. China
| | - Jiaqiao Jiang
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Mengke Gan
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Bingxin Lu
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Rifeng Luo
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Qingqing Liu
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Qianqian Zhang
- The College of Materials Science and Engineering, Beijing University of Technology, Beijing, 100124, P. R. China
| | - Zhaoyue Liu
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, P. R. China
| | - Jin Zhai
- Key Laboratory of Bio-Inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing, 100191, P. R. China
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11
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Zhang R, Chen X, Sun Z, Chen S, Gao J, Sun Y, Li H. Switchable Nanochannel Biosensor for H2S Detection Based on an Azide Reduction Reaction Controlled BSA Aggregation. Anal Chem 2019; 91:6149-6154. [DOI: 10.1021/acs.analchem.9b00752] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Ruiping Zhang
- The Affiliated Cancer Hospital of Shanxi Medical University, Imaging Department of Shanxi Medical University, Taiyuan 030001, China
| | - Xiaoya Chen
- Key laboratory of Pesticides and Chemical Biology, Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, Center of Chemical Biology, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Zhongyue Sun
- Key laboratory of Pesticides and Chemical Biology, Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, Center of Chemical Biology, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Sen Chen
- Key laboratory of Pesticides and Chemical Biology, Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, Center of Chemical Biology, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Jing Gao
- Jiangsu Key Laboratory of Medical Optics, Suzhou Institute of Biomedical Engineering and Technology, Chinese Academy of Sciences, Suzhou 215163, China
| | - Yao Sun
- Key laboratory of Pesticides and Chemical Biology, Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, Center of Chemical Biology, College of Chemistry, Central China Normal University, Wuhan 430079, China
| | - Haibing Li
- Key laboratory of Pesticides and Chemical Biology, Ministry of Education, International Joint Research Center for Intelligent Biosensor Technology and Health, Center of Chemical Biology, College of Chemistry, Central China Normal University, Wuhan 430079, China
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Ali M, Ahmed I, Nasir S, Duznovic I, Niemeyer CM, Ensinger W. Potassium-induced ionic conduction through a single nanofluidic pore modified with acyclic polyether derivative. Anal Chim Acta 2018; 1039:132-139. [DOI: 10.1016/j.aca.2018.07.056] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2018] [Revised: 07/12/2018] [Accepted: 07/23/2018] [Indexed: 01/11/2023]
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Li L, Zhang R, Lu C, Sun J, Wang L, Qu B, Li T, Liu Y, Li S. In situ synthesis of NIR-light emitting carbon dots derived from spinach for bio-imaging applications. J Mater Chem B 2017; 5:7328-7334. [PMID: 32264182 DOI: 10.1039/c7tb00634a] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Near infrared (NIR)-light emitting fluorescent probes have attracted extensive research attention in the bioimaging field due to their deep tissue penetration, minimal auto-fluorescence and lower emission light damage to bio-tissues. Herein, we designed and prepared NIR-light emitting CDs (R-CDs) from spinach by a one-step solvothermal method. The R-CDs exhibited good water solubility, a maximum fluorescence emission peak at 680 nm, a high quantum yield of 15.34%, remarkable photo-stability and resistance to metal ions in a body-simulating environment, excellent compatibility, negligible toxicity, and superior labelling capability in vitro and in vivo. These findings significantly highlight the design of NIR-light emitting CDs and exploit their bio-imaging applications.
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Affiliation(s)
- Liping Li
- National Engineering Laboratory for Carbon Fiber Technology, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan 030001, P. R. China.
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