Dansyl-peptide dual-functional fluorescent chemosensor for Hg2+ and biothiols

Pang, Xuliang; Wang, Lei; Yu, Shuaibing; Kong, Jinming; Li, Lianzhi

doi:10.1016/j.dyepig.2019.107888

Cited by 33 publications

(15 citation statements)

References 73 publications

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“…Xuliang et al [ 88 ] developed a dansyl-peptide based Hg 2+ selective sensor ( 60 , dansyl-Glu-Cys-Glu-Trp-NH 2 ). Sensor 60 showed two emission maxima at 337 and 550 nm due to the tryptophan and dansyl fluorophores.…”

Section: Chromo-fluorogenic Chemosensorsmentioning

confidence: 99%

Mercury Toxicity and Detection Using Chromo-Fluorogenic Chemosensors

2021

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Mercury (Hg), this non-essential heavy metal released from both industrial and natural sources entered into living bodies, and cause grievous detrimental effects to the human health and ecosystem. The monitoring of Hg2+ excessive accumulation can be beneficial to fight against the risk associated with mercury toxicity to living systems. Therefore, there is an emergent need of novel and facile analytical approaches for the monitoring of mercury levels in various environmental, industrial, and biological samples. The chromo-fluorogenic chemosensors possess the attractive analytical parameters of low-cost, enhanced detection ability with high sensitivity, simplicity, rapid on-site monitoring ability, etc. This review was narrated to summarize the mercuric ion selective chromo-fluorogenic chemosensors reported in the year 2020. The design of sensors, mechanisms, fluorophores used, analytical performance, etc. are summarized and discussed.

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Section: Chromo-fluorogenic Chemosensorsmentioning

confidence: 99%

Mercury Toxicity and Detection Using Chromo-Fluorogenic Chemosensors

2021

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“…In this study, we mainly focus on the design and application of an electrochemical and PEC dual-mode sensor l -cysteine-functionalized Cu 2 O ( l -Cys-Cu 2 O) for Hg 2+ detection. The specific recognition of Hg 2+ ions was achieved by l -Cys-Cu 2 O since the Hg 2+ ions and a biothiol group belong to soft acid and soft base and can easily induce the formation of a stable complex based on the hard–soft acid–base (HSAB) theory. − The electrical signals obtained by the sensor mainly result from the interaction of biothiol with the target Hg 2+ ions. Furthermore, a Cu + ion is a stronger Lewis acid than most metal ions, so most other metal ions (Fe 3+ , Co 2+ , Ni 2+ , Cu 2+ , Zn 2+ , Cr 3+ , Pb 2+ , Cd 2+ , Ag 2+ , etc.)…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, a Cu + ion is a stronger Lewis acid than most metal ions, so most other metal ions (Fe 3+ , Co 2+ , Ni 2+ , Cu 2+ , Zn 2+ , Cr 3+ , Pb 2+ , Cd 2+ , Ag 2+ , etc.) are difficult to competitively react with a l -Cys-Cu 2 O system under mild conditions. − Based on the perspective of solubility product constants, the binding interaction between Hg 2+ and S 2– is much stronger than them. − Therefore, Hg 2+ ions could competitively interact with biothiol to form a mercury–thiolate complex on the surface of l -Cys-Cu 2 O and realize the specific recognition of Hg 2+ ions. The responses of the proposed l -Cys-Cu 2 O dual-mode sensor for Hg 2+ ions are shown in Scheme S1.…”

Section: Introductionmentioning

confidence: 99%

Biothiol-Functionalized Cuprous Oxide Sensor for Dual-Mode Sensitive Hg²⁺ Detection

Pang

Bai

Zhao

et al. 2021

ACS Appl. Mater. Interfaces

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Hg2+ ions are one of the highly poisonous heavy metal ions in the environment, so it is urgent to develop rapid and sensitive detection platforms for detecting Hg2+ ions. In this work, a novel electrochemical and photoelectrochemical dual-mode sensor (l-Cys-Cu2O) was successfully fabricated, and the sensor exhibits a satisfactory detection limit (0.2 and 0.01 nM) for the detection of Hg2+, which is far below the dangerous limit of the U.S. Environmental Protection Agency. The linear ranges of dual-mode Hg2+ detections were 0.33–3.3 and 0.17–1.33 μM, respectively. Moreover, the sensor shows desirable stability, selectivity, and reproducibility for detecting Hg2+ ions. For river water samples, the recoveries of 96.6–101.4% (electrochemical data) and 93.0–105.6% (photoelectrochemical data) were obtained, indicating that the sensor could be successfully applied in the determination of Hg2+ ions in environmental water. Therefore, the designed sensor has a potential in the trace-level detection of Hg2+ ions.

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“…The design of simple and convenient chemosensors that can detect metal ions has attracted considerable attention owing to the pivotal roles of these ions in the natural environment. [1][2][3][4][5][6][7] Of the metal ions, cobalt performs a vital task in vitamin B12 and plays a principal role in various metabolisms and the synthesis of metalloproteins. [8][9][10][11] However, excess accumulation of cobalt in the human body can have toxicological effects, such as reduced cardiac output, asthma and thyroid enlargement.…”

Section: Introductionmentioning

confidence: 99%

Immediate detection of Co²⁺ by a phthalazine‐based colorimetric chemosensor

Heo

Kim

2021

Coloration Technology

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We designed a colorimetric chemosensor based on phthalazine ((E)-9-((2-quinoline-8-ol), denoted HPJ, for detecting Co 2+ . In the presence of Co 2+ , HPJ undergoes a colour variation from yellow to dark pink. Analysis of a Job plot and electrospray ionisation-mass spectra enabled the binding mode of HPJ to Co 2+ to be determined as a 1:1 ratio. The detection limit of Co 2+ with HPJ was 1.74 μM.In addition, the feasibility of using HPJ in the form of a test strip was confirmed.The sensing process of Co 2+ by HPJ was monitored by using a Job plot, proton nuclear magnetic resonance titration, electrospray ionisation-mass spectrometry and ultraviolet-visible titration.

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Dansyl-peptide dual-functional fluorescent chemosensor for Hg2+ and biothiols

Cited by 33 publications

References 73 publications

Mercury Toxicity and Detection Using Chromo-Fluorogenic Chemosensors

Mercury Toxicity and Detection Using Chromo-Fluorogenic Chemosensors

Biothiol-Functionalized Cuprous Oxide Sensor for Dual-Mode Sensitive Hg²⁺ Detection

Immediate detection of Co²⁺ by a phthalazine‐based colorimetric chemosensor

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Dansyl-peptide dual-functional fluorescent chemosensor for Hg2+ and biothiols

Cited by 33 publications

References 73 publications

Mercury Toxicity and Detection Using Chromo-Fluorogenic Chemosensors

Mercury Toxicity and Detection Using Chromo-Fluorogenic Chemosensors

Biothiol-Functionalized Cuprous Oxide Sensor for Dual-Mode Sensitive Hg2+ Detection

Immediate detection of Co2+ by a phthalazine‐based colorimetric chemosensor

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Product

Resources

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Biothiol-Functionalized Cuprous Oxide Sensor for Dual-Mode Sensitive Hg²⁺ Detection

Immediate detection of Co²⁺ by a phthalazine‐based colorimetric chemosensor