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Fosnacht KG, Pluth MD. Activity-Based Fluorescent Probes for Hydrogen Sulfide and Related Reactive Sulfur Species. Chem Rev 2024; 124:4124-4257. [PMID: 38512066 DOI: 10.1021/acs.chemrev.3c00683] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/22/2024]
Abstract
Hydrogen sulfide (H2S) is not only a well-established toxic gas but also an important small molecule bioregulator in all kingdoms of life. In contemporary biology, H2S is often classified as a "gasotransmitter," meaning that it is an endogenously produced membrane permeable gas that carries out essential cellular processes. Fluorescent probes for H2S and related reactive sulfur species (RSS) detection provide an important cornerstone for investigating the multifaceted roles of these important small molecules in complex biological systems. A now common approach to develop such tools is to develop "activity-based probes" that couple a specific H2S-mediated chemical reaction to a fluorescent output. This Review covers the different types of such probes and also highlights the chemical mechanisms by which each probe type is activated by specific RSS. Common examples include reduction of oxidized nitrogen motifs, disulfide exchange, electrophilic reactions, metal precipitation, and metal coordination. In addition, we also outline complementary activity-based probes for imaging reductant-labile and sulfane sulfur species, including persulfides and polysulfides. For probes highlighted in this Review, we focus on small molecule systems with demonstrated compatibility in cellular systems or related applications. Building from breadth of reported activity-based strategies and application, we also highlight key unmet challenges and future opportunities for advancing activity-based probes for H2S and related RSS.
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Affiliation(s)
- Kaylin G Fosnacht
- Department of Chemistry and Biochemistry, Materials Science Institute, Knight Campus for Accelerating Scientific Impact, and Institute of Molecular Biology, University of Oregon, Eugene, Oregon 97403-1253, United States
| | - Michael D Pluth
- Department of Chemistry and Biochemistry, Materials Science Institute, Knight Campus for Accelerating Scientific Impact, and Institute of Molecular Biology, University of Oregon, Eugene, Oregon 97403-1253, United States
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Zhou M, Zheng M, Wang P, An Y. A novel ratiometric peptide-based fluorescent probe for sequential detection of Hg 2+ and S 2- ions and its application in living cells and zebrafish imaging. Spectrochim Acta A Mol Biomol Spectrosc 2024; 309:123829. [PMID: 38176191 DOI: 10.1016/j.saa.2023.123829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/22/2023] [Revised: 12/26/2023] [Accepted: 12/28/2023] [Indexed: 01/06/2024]
Abstract
A new ratiometric peptide-based fluorescent probe DWPH was designed and synthesized, comprising dansyl fluorophore as a fluorescent dye, and tripeptide backbone (Trp-Pro-His-NH2) as a recognition group. The addition of Hg2+ caused the maximum emission peak of DWPH to blue shift from 560 nm to 510 nm. DWPH exhibited large Stokes shift (230 nm), satisfactory water solubility (100 % aqueous medium), good selectivity (only Hg2+), high sensitivity (24.6 nM), rapid response (within 50 s) and strong anti-interference ability for Hg2+ detection over a wide pH range (7-11). Additionally, the complex DWPH-Hg2+ as a relay response probe could also be applied to S2- according to displacement approach. Notably, the detection limit for S2- was calculated as 23.3 nM, exhibiting that DWPH showed great potential for environmental monitoring and bioimaging. In addition, DWPH were successfully used to determine Hg2+ and S2- in living cells and zebrafish based on excellent permeability and low cytotoxicity. What's more, the gradient concentration color changes of Hg2+ and S2- were combined with the smartphone APP to obtain red-green-blue (RGB) values, thus enabling rapid semi-quantitative detection of Hg2+ and S2- without expensive instruments.
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Affiliation(s)
- Miao Zhou
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong 637009, PR China
| | - Maoyue Zheng
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong 637009, PR China
| | - Peng Wang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong 637009, PR China.
| | - Yong An
- The First School of Clinical Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu 730030, PR China.
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Wei P, Xiao L, Hou P, Wang Q, Wang P. A novel Cu(II)-assisted peptide fluorescent probe for highly sensitive detection of glyphosate in real samples: real application in test strips and smartphone. Anal Bioanal Chem 2023; 415:5985-5996. [PMID: 37505235 DOI: 10.1007/s00216-023-04869-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 07/11/2023] [Accepted: 07/14/2023] [Indexed: 07/29/2023]
Abstract
Glyphosate (Glyp) is an organophosphorus herbicide, and its abuse causes potential harm to the environment and human health. Thus, the development of simple and portable methods for rapid and visual detection of glyphosate is of great importance. Herein, we successfully developed a new fluorescent probe L with dansyl fluorophore as a fluorescent dye and tetrapeptide (Ala-Ser-Arg-His-NH2) as a recognition group. According to the design, L exhibited a specific fluorescence quenching response to Cu2+ and formed an L-Cu2+ ensemble with a molecular ratio of 2:1, demonstrating a limit of detection (LOD) as low as 12.04 nM. Interestingly, the L-Cu2+ ensemble as a relay response probe exhibited a specific fluorescence "off-on" response to glyphosate without interference from other pesticides and anions based on the strong complexation of glyphosate and Cu2+. The LOD of the L-Cu2+ ensemble for glyphosate was calculated as 12.59 nM. Additionally, the results of three recovery experiments with real samples showed that L has good practicability and accuracy in detecting glyphosate. Test strips were also fabricated to achieve facile detection of glyphosate to demonstrate the practical application potential of the L-Cu2+ ensemble. The L-Cu2+ ensemble was integrated with a smartphone for semi-quantification of glyphosate in a field environment under a 365 nm UV lamp.
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Affiliation(s)
- Ping Wei
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong, 637009, People's Republic of China
| | - Lin Xiao
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong, 637009, People's Republic of China
| | - Peilian Hou
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong, 637009, People's Republic of China
| | - Qifan Wang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong, 637009, People's Republic of China
| | - Peng Wang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong, 637009, People's Republic of China.
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Wang H, Mu W, Wang S, Liu Y, Ran B, Shi L, Ma T, Lu Y. Simultaneous fluorescence sensing of vitamin B2 and sulfur ions based on fluorescent copper nanoparticles. Talanta 2023; 256:124267. [PMID: 36657240 DOI: 10.1016/j.talanta.2023.124267] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 01/08/2023] [Accepted: 01/11/2023] [Indexed: 01/15/2023]
Abstract
In this study, the F-CuNPs were synthesized by a modified liquid-phase chemical reduction method. Throughout the preparation process, anhydrous copper sulfate was used as the copper source, and ascorbic acid in the NaOH solution served as the reducing and protective agent. Förster resonance energy transfer (FRET) may exist between F-CuNPs and vitamin B2 due to the large spectral overlap between the fluorescence emission spectra of F-CuNPs and the UV-vis absorption spectra of vitamin B2. Therefore, the detection of vitamin B2 was designed based on a FRET system between F-CuNPs and vitamin B2. With S2- into the F-CuNPs&VB2 system, the fluorescence intensity of vitamin B2 was quenched, while the fluorescence intensity of F-CuNPs was almost unchanged. There may be a specific reaction between S2- and vitamin B2. Therefore, the research system can be further used to detect S2- based on ratiometric fluorescent probe. The research findings show that the linear range of vitamin B2 was 0.51 nM-34.64 nM with a detection limit of 0.25 nM (S/N = 3), the linear range of S2- was 0.64 μM-60.00 μM with a detection limit of 0.32 μM (S/N = 3). Furthermore, the simultaneous fluorescent sensing system has high sensitivity and selectivity. Therefore, this system was designed and successfully used to detect the content of vitamin B2 and S2- in actual samples to find a new effective method to detect analytes.
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Affiliation(s)
- Huan Wang
- Phytochemistry Key Laboratory of Tibetan Plateau of Qinghai Province, College of Pharmacy, Qinghai Nationalities University, Xining, 810007, China.
| | - Wencheng Mu
- Phytochemistry Key Laboratory of Tibetan Plateau of Qinghai Province, College of Pharmacy, Qinghai Nationalities University, Xining, 810007, China
| | - Siying Wang
- 96602 Military Hospital of Chinese People's Liberation Army, Kunming, 650000, China
| | - Yuanyuan Liu
- Yinchuan Center for Disease Control and Prevention, Yinchuan, 750004, China
| | - Baocheng Ran
- Phytochemistry Key Laboratory of Tibetan Plateau of Qinghai Province, College of Pharmacy, Qinghai Nationalities University, Xining, 810007, China
| | - Lin Shi
- Phytochemistry Key Laboratory of Tibetan Plateau of Qinghai Province, College of Pharmacy, Qinghai Nationalities University, Xining, 810007, China
| | - Tianfeng Ma
- Phytochemistry Key Laboratory of Tibetan Plateau of Qinghai Province, College of Pharmacy, Qinghai Nationalities University, Xining, 810007, China
| | - Yongchang Lu
- Phytochemistry Key Laboratory of Tibetan Plateau of Qinghai Province, College of Pharmacy, Qinghai Nationalities University, Xining, 810007, China
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Wei P, Xiao L, Gou Y, He F, Wang P. A novel fluorescent probe based on a tripeptide-Cu(II) complex system for detection of histidine and its application on test strips and smartphone. Spectrochim Acta A Mol Biomol Spectrosc 2023; 290:122290. [PMID: 36608521 DOI: 10.1016/j.saa.2022.122290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2022] [Revised: 12/26/2022] [Accepted: 12/28/2022] [Indexed: 06/17/2023]
Abstract
Herein, we reported a novel peptide-based fluorescent probe DSSH for highly selective and sensitive detections of both Cu2+ and l-histidine (l-His). DSSH exhibited different color changes and fluorescence "on-off" response toward Cu2+ with a 2:1 binding stoichiometry, and the limit of detection (LOD) for Cu2+ was calculated to be 22.9 nM. The in situ formed DSSH-Cu2+ ensemble showed obvious fluorescence "off-on" response to l-His based on replacement reaction with Cu2+, as well as the discernable color changes under 365 nm UV lamp irradiation with "naked eye". The specificity of Cu2+/l-His interactions allowed l-His to be determined without interference from other amino acids, and the detection limit of DSSH-Cu2+ ensemble response to l-His was determined as 25.7 nM. Notably, DSSH was successfully applied for detecting Cu2+ and l-His in RKO living cells owing to its remarkable fluorescence behavior and low cytotoxicity. Test strips experiments suggested that DSSH can recognize Cu2+ and l-His together by a remarkable fluorescence change. More importantly, smartphone was combined with l-His solutions of different concentrations and converted into digital values through RGB channels, which was successfully used for semi-quantitative identification of l-His, and the limit of detection (LOD) was 0.97 μM.
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Affiliation(s)
- Ping Wei
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong 637009, PR China
| | - Lin Xiao
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong 637009, PR China
| | - Yuting Gou
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong 637009, PR China
| | - Fang He
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong 637009, PR China
| | - Peng Wang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong 637009, PR China.
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Wei P, Xiao L, Gou Y, He F, Wang P, Yang X. A novel peptide-based relay fluorescent probe with a large Stokes shift for detection of Hg 2+ and S 2- in 100 % aqueous medium and living cells: Visual detection via test strips and smartphone. Spectrochim Acta A Mol Biomol Spectrosc 2023; 285:121836. [PMID: 36126620 DOI: 10.1016/j.saa.2022.121836] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Revised: 08/08/2022] [Accepted: 09/01/2022] [Indexed: 06/15/2023]
Abstract
Herein, a novel relay peptide-based fluorescent probe DGRK was synthesized via solid phase peptide synthesis (SPPS) technology. DGRK exhibited excellent water-solubility, good stability, remarkably large Stokes shift (230 nm) and high selectivity response to Hg2+ with a non-fluorescence complex DGRK-Hg2+ formation via a 1:1 binding mode. Further studies indicated that the DGRK-Hg2+ complex could act as a secondary probe for rapidly and sequentially detecting S2- based on fluorescent "off-on" response, and without interference from a range of anions. The limit of detection (LOD) for Hg2+ and S2- were calculated to be 33.6 nM and 60.9 nM, respectively. In addition, The reversibility of interaction of confirmed that the continuous and reversible recognition behavior of Hg2+ and S2- by the probe DGRK, and could be cycled more than 5 times. In addition, DGRK could be successfully applied to the fluorescence imaging of Hg2+ and S2- in two living cells based on excellent cells permeability and low cytotoxicity. Meanwhile, DGRK was successfully used to create the low-cost and portable test strips for visual detection and rapid analysis under 365 nm UV lamp, and the test strips combined with a smartphone (RGB color) was successfully applied to the semi-quantitative analysis and monitoring of dynamic changes of Hg2+ levels.
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Affiliation(s)
- Ping Wei
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong 637009, PR China
| | - Lin Xiao
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong 637009, PR China
| | - Yuting Gou
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong 637009, PR China
| | - Fang He
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong 637009, PR China
| | - Peng Wang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong 637009, PR China; Key Laboratories of Fine Chemicals and Surfactants in Sichuan Provincial Universities, Sichuan University of Science & Engineering, Zigong 643000, PR China.
| | - Xiupei Yang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong 637009, PR China.
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Xiao L, Wei P, He F, Gou Y, Ge Y, Liu Y, Wang P, Liao Y. Peptide-based fluorescent and colorimetric dual-functional probe for visual detection of Cu2+, Hg2+ and S2− in 100% aqueous media, living cells and paper test strips. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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8
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Zhang L, Han X, Wu W, Zhao X, Wang Y, Fan Y, Xu Z. A novel fluorescence aggregation-induced emission active chemosensor for sequential determination of Cu2+ and S2− in an almost neat aqueous solution. Microchem J 2022; 183:107974. [DOI: 10.1016/j.microc.2022.107974] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Xiao L, Wei P, He F, Gou Y, Zhou J, Wang P, Wu J. Smartphone-assisted colorimetric and fluorescent dual-functional peptide-based probe for multianalyte visual detection in 100% aqueous media, living cells and test strips. J Mol Struct 2022. [DOI: 10.1016/j.molstruc.2022.134556] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Wang Y, Li J, Pei Z, Pei Y. Lactosylation leads to a water-soluble fluorescent probe for detection of S2− in water. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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An X, Wang Y, Li J, Pei Z, Pei Y. Detection of S2− in Water by a Glucose Enhanced Water-Soluble Fluorescent Bioprobe. Biosensors 2022; 12:600. [PMID: 36004996 PMCID: PMC9406183 DOI: 10.3390/bios12080600] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2022] [Revised: 07/31/2022] [Accepted: 08/02/2022] [Indexed: 11/17/2022]
Abstract
That sulfide anions (S2−) in aquatic environments are produced by microorganisms through degrading sulfur-containing proteins and other organics are harmful to human health. Thus, it is of significance to develop a convenient method for the detection of S2− in water. Small molecular fluorescent probes are very popular for their advantages of visualization, real-time, high sensitivity, and convenience. However, low solubility in water limits the application of existing S2− probes. In this work, we found that our previously developed water-soluble glycosylated fluorescent bioprobe Cu[GluC] can achieve detection of S2− in water. Cu[GluC] can restore fluorescence within 20 s when it encounters S2− and shows good sensitivity towards S2− with a detection limit of 49.6 nM. Besides, Cu[GluC] derived fluorescent test strips were obtained by immersion and realized conveniently visual S2− detection in water by coupling with a UV lamp and a smartphone app. This work provides a fluorescent bioprobe with good water solubility as well as its derived fluorescent test strip for sensitive and simple detection of S2− in water, which shows good prospects in on-site water quality monitoring.
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Wei P, Xiao L, Gou Y, He F, Zhou D, Liu Y, Xu B, Wang P, Zhou Y. Fluorescent “on–off–on” probe based on copper peptide backbone for specific detection of Cu(II) and hydrogen sulfide in 100% aqueous medium and application in cell imaging, real water samples and test strips. Microchem J 2022. [DOI: 10.1016/j.microc.2022.107848] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Wang P, Wang Q, Guo Z, Xue S, Chen B, Liu Y, Ren W, Yang X, Wen S. A bifunctional peptide-based fluorescent probe for ratiometric and "turn-on" detection of Zn(II) ions and its application in living cells. Spectrochim Acta A Mol Biomol Spectrosc 2022; 268:120653. [PMID: 34838424 DOI: 10.1016/j.saa.2021.120653] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/26/2021] [Revised: 11/12/2021] [Accepted: 11/18/2021] [Indexed: 06/13/2023]
Abstract
In this work, a bifunctional peptide-based fluorescent probe L containing a tetrapeptide scaffold (Pro-Gly-His-Trp-NH2) and a dansyl group was synthesized using solid phase peptide synthesis (SPPS) technology. As designed, L, based on a FRET mechanism, exhibited high selectivity, excellent ratiometric signals, and fast response to Zn2+ in aqueous solutions at an excitation wavelength of 280 nm. In addition, when excited at 320 nm, L exhibited a fluorescent "turn-on" response towards Zn2+ based on PET mechanism. More importantly, the stoichiometry of L and Zn2+ was determined to be 2:1 by fluorescent titration, Job's plot method, and ESI-MS spectrometry. The association constant for Zn2+ ions was determined to be 6.26 × 108 M-2, while the limit of detection (LOD) of L was estimated as 5.43 nM, which is a much lower value than WHO and EPA guidelines for drinking water. Moreover, L was successfully applied to detect both Zn2+ and Cu2+ in living cells due to good biocompatibility and excellent low toxicity.
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Affiliation(s)
- Peng Wang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong 637009, China.
| | - Qifan Wang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong 637009, China
| | - Zhouquan Guo
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong 637009, China
| | - Shirui Xue
- School of Journalism and Communications, China West Normal University, Shida Road 1#, Nanchong 637009, China
| | - Bo Chen
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong 637009, China
| | - Yi Liu
- State Key Laboratory of Virology & Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), College of Chemistry and Molecular Sciences, Wuhan University, Wuhan 430072, China
| | - Wang Ren
- Key Laboratory of Green Chemistry of Sichuan Institutes of Higher Education, School of Chemistry and Environmental Engineering, Sichuan University of Science & Engineering, Zigong 643000, China
| | - Xiupei Yang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong 637009, China.
| | - Shaohua Wen
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong 637009, China.
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Guo Z, Wang Q, Zhou D, An Y, Wang P, Liao F. A novel peptide-based fluorescent probe with a large stokes shift for rapid and sequential detection of Cu 2+ and CN - in aqueous systems and live cells. Spectrochim Acta A Mol Biomol Spectrosc 2022; 264:120257. [PMID: 34411770 DOI: 10.1016/j.saa.2021.120257] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/22/2021] [Revised: 07/04/2021] [Accepted: 08/02/2021] [Indexed: 06/13/2023]
Abstract
A novel fluorescent probe (DSD) was reasonably designed and synthesized with dansyl-labeled dipeptide (Dan-Ser-Asp-NH2). DSD featured remarkably large Stokes shift (230 nm) and perfect water solubility, and exhibited high selectivity and rapid recognition toward Cu2+via fluorescence quenching. The detection limit of DSD for Cu2+ was 2.4 nM, indicated that DSD has excellent sensitivity. In addition, the stoichiometry between DSD and Cu2+ were detected as 1:1 by fluorescence titration, Job's plot and ESI-HRMS data. As designed, DSD-Cu2+ system was able to sequentially detect CN- according to the displacement approach with fluorescence "off-on" response, and the detection limit for CN- was calculated to be 41.9 nM. Specifically, the response time of DSD with Cu2+ and CN- was less than 40 s, which rendered it suitable for real time detection in actual water samples. In addition, with the alternate addition of Cu2+ and CN-, the reversible cycles could be repeated for at least 10 times, indicated that DSD was a promising reversibility probe. DSD showed low toxicity and good biocompatibility, and was successfully applied to detect Cu2+ and CN- in living cells.
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Affiliation(s)
- Zhouquan Guo
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong 637009, PR. China
| | - Qifan Wang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong 637009, PR. China
| | - Dagang Zhou
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong 637009, PR. China
| | - Yong An
- The First School of Clinical Medicine, Gansu University of Chinese Medicine, Lanzhou, Gansu 730030, China
| | - Peng Wang
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong 637009, PR. China.
| | - Fang Liao
- Chemical Synthesis and Pollution Control Key Laboratory of Sichuan Province, College of Chemistry and Chemical Engineering, China West Normal University, Shida Road 1#, Nanchong 637009, PR. China.
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