1
|
Kong W, Liu M, Zhang J, Wu H, Wang Y, Su Q, Li Q, Zhang J, Wu C, Zou WS. Room-temperature phosphorescence and fluorescence nanocomposites as a ratiometric chemosensor for high-contrast and selective detection of 2,4,6-trinitrotoluene. Anal Chim Acta 2023; 1282:341930. [PMID: 37923408 DOI: 10.1016/j.aca.2023.341930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 10/15/2023] [Accepted: 10/16/2023] [Indexed: 11/07/2023]
Abstract
Reports on using complementary colours for high-contrast ratiometric assays are limited to date. In this work, graphitized carbon nitride (g-C3N4) nanosheets and mercaptoethylamine (MEA) capped Mn-doped ZnS QDs were fabricated by liquid exfoliation of bulk g-C3N4, and by a coprecipitation and postmodification strategies, respectively. Mn-doped ZnS quantum dots were deposited onto g-C3N4 nanosheets through an electrostatic self-assembly to form new nanocomposites (denoted as Mn-ZnS QDs@g-C3N4). Mn-ZnS QDs@g-C3N4 can emit a pair of complementary colour light, namely, orange room-temperature phosphorescence (RTP) at 582 nm and blue fluorescence at 450 nm. After 2,4,6-trinitrotoluene (TNT) dosing into Mn-ZnS QDs@g-C3N4 aqueous solution, and pairing with MEA to generate TNT anions capable of quenching the emission of Mn-doped ZnS QDs, the fluorescence colours of the solution changed from orange to blue across white, exhibiting unusual high-contrast fluorescence images. The developed ratiometric chemosensor showed very good linearity in the range of 0-12 μM TNT with a limit of detection of 0.56 μM and an RSD of 6.4 % (n = 5). Also, the ratiometric probe had an excellent selectivity for TNT over other nitroaromatic compounds, which was applied in the ratiometric test paper to image TNT in water, and TNT sensing under phosphorescence mode to efficiently avoid background interference. A high-contrast dual-emission platform for selective ratiometric detection of TNT was therefore established.
Collapse
Affiliation(s)
- Weili Kong
- School of Materials and Chemical Engineering, Key Laboratory of Functional Molecule Design and Interface Procedure, Anhui Jianzhu University, Hefei, 230022, China
| | - Meina Liu
- School of Materials and Chemical Engineering, Key Laboratory of Functional Molecule Design and Interface Procedure, Anhui Jianzhu University, Hefei, 230022, China
| | - Jinhui Zhang
- School of Materials and Chemical Engineering, Key Laboratory of Functional Molecule Design and Interface Procedure, Anhui Jianzhu University, Hefei, 230022, China
| | - Hongbo Wu
- School of Chemical Engineering, Anhui University of Science and Technology, Huainan, 232001, China
| | - Yaqin Wang
- School of Materials and Chemical Engineering, Key Laboratory of Functional Molecule Design and Interface Procedure, Anhui Jianzhu University, Hefei, 230022, China.
| | - Qin Su
- School of Materials and Chemical Engineering, Key Laboratory of Functional Molecule Design and Interface Procedure, Anhui Jianzhu University, Hefei, 230022, China
| | - Qin Li
- School of Materials and Chemical Engineering, Key Laboratory of Functional Molecule Design and Interface Procedure, Anhui Jianzhu University, Hefei, 230022, China
| | - Jun Zhang
- School of Materials and Chemical Engineering, Key Laboratory of Functional Molecule Design and Interface Procedure, Anhui Jianzhu University, Hefei, 230022, China; New Energy Photovoltaic Industry Research Center, Qinghai University, Xining, 810016, China
| | - Chengli Wu
- School of Chemical Engineering, Anhui University of Science and Technology, Huainan, 232001, China.
| | - Wen-Sheng Zou
- School of Materials and Chemical Engineering, Key Laboratory of Functional Molecule Design and Interface Procedure, Anhui Jianzhu University, Hefei, 230022, China.
| |
Collapse
|
2
|
Krivitsky V, Krivitsky A, Mantella V, Ben-Yehuda Greenwald M, Sankar DS, Betschmann J, Bader J, Zoratto N, Schreier K, Feiss S, Walker D, Dengjel J, Werner S, Leroux JC. Ultrafast and Controlled Capturing, Loading, and Release of Extracellular Vesicles by a Portable Microstructured Electrochemical Fluidic Device. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2023; 35:e2212000. [PMID: 37452635 DOI: 10.1002/adma.202212000] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/21/2022] [Revised: 07/04/2023] [Accepted: 07/12/2023] [Indexed: 07/18/2023]
Abstract
Extracellular vesicles (EVs) are secreted by all living cells and are found in body fluids. They exert numerous physiological and pathological functions and serve as cargo shuttles. Due to their safety and inherent bioactivity, they have emerged as versatile therapeutic agents, biomarkers, and potential drug carriers. Despite the growing interest in EVs, current progress in this field is, in part, limited by relatively inefficient isolation techniques. Conventional methods are indeed slow, laborious, require specialized laboratory equipment, and may result in low yield and purity. This work describes an electrochemically controlled "all-in-one" device enabling capturing, loading, and releasing of EVs. The device is composed of a fluidic channel confined within antibody-coated microstructured electrodes. It rapidly isolates EVs with a high level of purity from various biofluids. As a proof of principle, the device is applied to isolate EVs from skin wounds of healthy and diabetic mice. Strikingly, it is found that EVs from healing wounds of diabetic mice are enriched in mitochondrial proteins compared to those of healthy mice. Additionally, the device improves the loading protocol of EVs with polyplexes, and may therefore find applications in nucleic acid delivery. Overall, the electrochemical device can greatly facilitate the development of EVs-based technologies.
Collapse
Affiliation(s)
- Vadim Krivitsky
- Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, 8093, Switzerland
| | - Adva Krivitsky
- Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, 8093, Switzerland
| | - Valeria Mantella
- Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, 8093, Switzerland
| | - Maya Ben-Yehuda Greenwald
- Institute of Molecular Health Sciences, Department of Biology, ETH Zurich, Zurich, 8093, Switzerland
| | | | - Jil Betschmann
- Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, 8093, Switzerland
| | - Johannes Bader
- Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, 8093, Switzerland
| | - Nicole Zoratto
- Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, 8093, Switzerland
| | - Kento Schreier
- Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, 8093, Switzerland
| | - Sarah Feiss
- Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, 8093, Switzerland
| | - Dario Walker
- Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, 8093, Switzerland
| | - Jörn Dengjel
- Department of Biology, University of Fribourg, Fribourg, 1700, Switzerland
| | - Sabine Werner
- Institute of Molecular Health Sciences, Department of Biology, ETH Zurich, Zurich, 8093, Switzerland
| | - Jean-Christophe Leroux
- Institute of Pharmaceutical Sciences, Department of Chemistry and Applied Biosciences, ETH Zurich, Zurich, 8093, Switzerland
| |
Collapse
|
3
|
Klapec DJ, Czarnopys G, Pannuto J. Interpol review of the analysis and detection of explosives and explosives residues. Forensic Sci Int Synerg 2023; 6:100298. [PMID: 36685733 PMCID: PMC9845958 DOI: 10.1016/j.fsisyn.2022.100298] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Affiliation(s)
- Douglas J. Klapec
- Arson and Explosives Section I, United States Department of Justice, Bureau of Alcohol, Tobacco, Firearms and Explosives, Forensic Science Laboratory, 6000 Ammendale Road, Ammendale, MD, 20705, USA
| | - Greg Czarnopys
- Forensic Services, United States Department of Justice, Bureau of Alcohol, Tobacco, Firearms and Explosives, Forensic Science Laboratory, 6000 Ammendale Road, Ammendale, MD, 20705, USA
| | - Julie Pannuto
- United States Department of Justice, Bureau of Alcohol, Tobacco, Firearms and Explosives, Forensic Science Laboratory, 6000 Ammendale Road, Ammendale, MD, 20705, USA
| |
Collapse
|
4
|
Qin P, Yang HH, Zhao XX, Qu WJ, Yao H, Wei TB, Lin Q, Shi B, Zhang YM. A supramolecular polymer network constructed by pillar[5]arene-based host–guest interactions and its application in nitro explosive detection. J INCL PHENOM MACRO 2022. [DOI: 10.1007/s10847-021-01118-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
|