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Guan X, Zhang J, Lai S, Wang K, Zhang W, Han Y, Fan Y, Li C, Tong J. Green Synthesis of Carboxymethyl Chitosan-Based CuInS 2 QDs with Luminescent Response toward Pb 2+ Ion and Its Application in Bioimaging. Inorg Chem 2023; 62:17486-17498. [PMID: 37814218 DOI: 10.1021/acs.inorgchem.3c02901] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/11/2023]
Abstract
Polysaccharide-based QDs have attracted great attention in the field of biological imaging and diagnostics. How to get rid of the high heavy metal toxicity resulting from conventional Cd- and Pb-based QDs is now the main challenge. Herein, we offer a simple and environmentally friendly approach for the "direct" interaction of thiol-ending carboxymethyl chitosan (CMC-SH) with metal salt precursors, resulting in CuInS2 QDs based on polysaccharides. A nucleation-growth mechanism based on the LaMer model can explain how CMC-CuInS2 QDs are formed. As-prepared water-soluble CMC-CuInS2 QDs exhibit monodisperse particles with sizes of 5.5-6.5 nm. CMC-CuInS2 QDs emit the bright-green fluorescence at 530 nm when excited at 466 nm with the highest quantum yield of ∼18.0%. Meanwhile, the fluorescence intensity of CMC-CuInS2 QD aqueous solution is quenched with the addition of Pb2+ and the minimal limit of detection is as little as 0.4 nM. Furthermore, due to its noncytotoxicity, great biocompatibility, and strong biorecognition ability, CMC-CuInS2 QDs can be exploited as a possible cell membrane imaging reagent. The imaging studies also demonstrate that CMC-CuInS2 QDs are suitable for Pb2+ detection in live cells and living organisms (zebrafish). Thus, this work offers such an efficient, green, and practical method for creating low-toxicity and water-soluble QD nanosensors for a sensitive and selective detection of toxic metal ion in live cells and organisms.
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Affiliation(s)
- Xiaolin Guan
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, Key Laboratory of Polymer Materials Ministry of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Jiaming Zhang
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, Key Laboratory of Polymer Materials Ministry of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Shoujun Lai
- College of Chemical Engineering, Lanzhou University of Arts and Science, Lanzhou 730000, China
| | - Kang Wang
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, Key Laboratory of Polymer Materials Ministry of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Wentao Zhang
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, Key Laboratory of Polymer Materials Ministry of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Yang Han
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, Key Laboratory of Polymer Materials Ministry of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Yuwen Fan
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, Key Laboratory of Polymer Materials Ministry of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
| | - Chenghao Li
- Key Laboratory of Traditional Chinese Medicine Prevention and Treatment, Gansu University of Traditional Chinese Medicine, Lanzhou 730000, China
| | - Jinhui Tong
- Key Laboratory of Eco-Environment-Related Polymer Materials Ministry of Education, Key Laboratory of Polymer Materials Ministry of Gansu Province, College of Chemistry and Chemical Engineering, Northwest Normal University, Lanzhou 730070, China
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Copper indium sulfide quantum dots in photocatalysis. J Colloid Interface Sci 2023; 638:193-219. [PMID: 36738544 DOI: 10.1016/j.jcis.2023.01.107] [Citation(s) in RCA: 16] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/19/2022] [Revised: 01/17/2023] [Accepted: 01/22/2023] [Indexed: 01/27/2023]
Abstract
Since the advent of photocatalytic technology, scientists have been searching for semiconductor materials with high efficiency in solar energy utilization and conversion to chemical energy. Recently, the development of quantum dot (QD) photocatalysts has attracted much attention because of their unique characteristics: small size, quantum effects, strong surface activity, and wide photoresponse range. Among ternary chalcogenide semiconductors, CuInS2 QDs are increasingly examined in the field of photocatalysis due to their high absorption coefficients, good matching of the absorption range with sunlight spectrum, long lifetimes of photogenerated electron-hole pairs and environmental sustainability. In this review paper, the structural and electronic properties, synthesis methods and various photocatalytic applications of CuInS2 QDs are systematically expounded. The current research status on the photocatalytic properties of materials based on CuInS2 QD is discussed combined with the existing modification approaches for the enhancement of their performances. Future challenges and new development opportunities of CuInS2 QDs in the field of photocatalysis are then prospected.
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Wang Q, Wang C, Yang X, Wang J, Zhang Z, Shang L. Microfluidic preparation of optical sensors for biomedical applications. SMART MEDICINE 2023; 2:e20220027. [PMID: 39188556 PMCID: PMC11235902 DOI: 10.1002/smmd.20220027] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 11/15/2022] [Indexed: 08/28/2024]
Abstract
Optical biosensors are platforms that translate biological information into detectable optical signals, and have extensive applications in various fields due to their characteristics of high sensitivity, high specificity, dynamic sensing, etc. The development of optical sensing materials is an important part of optical sensors. In this review, we emphasize the role of microfluidic technology in the preparation of optical sensing materials and the application of the derived optical sensors in the biomedical field. We first present some common optical sensing mechanisms and the functional responsive materials involved. Then, we describe the preparation of these sensing materials by microfluidics. Afterward, we enumerate the biomedical applications of these optical materials as biosensors in disease diagnosis, drug evaluation, and organ-on-a-chip. Finally, we discuss the challenges and prospects in this field.
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Affiliation(s)
- Qiao Wang
- Shanghai Xuhui Central HospitalZhongshan‐Xuhui Hospital, and the Shanghai Key Laboratory of Medical Epigeneticsthe International Co‐laboratory of Medical Epigenetics and Metabolism (Ministry of Science and Technology)Institutes of Biomedical SciencesFudan UniversityShanghaiChina
| | - Chong Wang
- Shanghai Xuhui Central HospitalZhongshan‐Xuhui Hospital, and the Shanghai Key Laboratory of Medical Epigeneticsthe International Co‐laboratory of Medical Epigenetics and Metabolism (Ministry of Science and Technology)Institutes of Biomedical SciencesFudan UniversityShanghaiChina
| | - Xinyuan Yang
- Shanghai Xuhui Central HospitalZhongshan‐Xuhui Hospital, and the Shanghai Key Laboratory of Medical Epigeneticsthe International Co‐laboratory of Medical Epigenetics and Metabolism (Ministry of Science and Technology)Institutes of Biomedical SciencesFudan UniversityShanghaiChina
| | - Jiali Wang
- Shanghai Xuhui Central HospitalZhongshan‐Xuhui Hospital, and the Shanghai Key Laboratory of Medical Epigeneticsthe International Co‐laboratory of Medical Epigenetics and Metabolism (Ministry of Science and Technology)Institutes of Biomedical SciencesFudan UniversityShanghaiChina
| | - Zhuohao Zhang
- Shanghai Xuhui Central HospitalZhongshan‐Xuhui Hospital, and the Shanghai Key Laboratory of Medical Epigeneticsthe International Co‐laboratory of Medical Epigenetics and Metabolism (Ministry of Science and Technology)Institutes of Biomedical SciencesFudan UniversityShanghaiChina
| | - Luoran Shang
- Shanghai Xuhui Central HospitalZhongshan‐Xuhui Hospital, and the Shanghai Key Laboratory of Medical Epigeneticsthe International Co‐laboratory of Medical Epigenetics and Metabolism (Ministry of Science and Technology)Institutes of Biomedical SciencesFudan UniversityShanghaiChina
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Mao S, Hu X, Tanaka Y, Zhou L, Peng C, Kasai N, Nakajima H, Kato S, Uchiyama K. A chemo-mechanical switchable valve on microfluidic chip based on a thermally responsive block copolymer. CHINESE CHEM LETT 2022. [DOI: 10.1016/j.cclet.2021.09.065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Cheng Y, Ling SD, Geng Y, Wang Y, Xu J. Microfluidic synthesis of quantum dots and their applications in bio-sensing and bio-imaging. NANOSCALE ADVANCES 2021; 3:2180-2195. [PMID: 36133767 PMCID: PMC9417800 DOI: 10.1039/d0na00933d] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2020] [Accepted: 02/13/2021] [Indexed: 05/17/2023]
Abstract
Bio-sensing and bio-imaging of organisms or molecules can provide key information for the study of physiological processes or the diagnosis of diseases. Quantum dots (QDs) stand out to be promising optical detectors because of their excellent optical properties such as high brightness, stability, and multiplexing ability. Diverse approaches have been developed to generate QDs, while microfluidic technology is one promising path for their industrial production. In fact, microfluidic devices provide a controllable, rapid and effective route to produce high-quality QDs, while serving as an effective in situ platform to understand the synthetic mechanism or optimize reaction parameters for QD production. In this review, the recent research progress in microfluidic synthesis and bio-detection applications of QDs is discussed. The definitions of different QDs are first introduced, and the advances in microfluidic-based fabrication of quantum dots are summarized with a focus on perovskite QDs and carbon QDs. In addition, QD-based bio-sensing and bio-imaging technologies for organisms of different scales are described in detail. Finally, perspectives for future development of microfluidic synthesis and applications of QDs are presented.
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Affiliation(s)
- Yu Cheng
- The State Key Lab of Chemical Engineering, Department of Chemical Engineering, Tsinghua University Beijing 100084 China
| | - Si Da Ling
- The State Key Lab of Chemical Engineering, Department of Chemical Engineering, Tsinghua University Beijing 100084 China
| | - Yuhao Geng
- The State Key Lab of Chemical Engineering, Department of Chemical Engineering, Tsinghua University Beijing 100084 China
| | - Yundong Wang
- The State Key Lab of Chemical Engineering, Department of Chemical Engineering, Tsinghua University Beijing 100084 China
| | - Jianhong Xu
- The State Key Lab of Chemical Engineering, Department of Chemical Engineering, Tsinghua University Beijing 100084 China
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