BIOMAT Database Logo BIOMAT Database Logo

Label-free, Water-soluble Fluorescent Peptide Probe for a Sensitive and Selective Determination of Copper Ions. 2017

Tao Yang, and Fang Zhu, and Tianxiao Zhou, and Jianzhong Cao, and Yibo Xie, and Meiyi Zhang, and Yan Wang, and Dong-Sheng Cao, and Qinlu Lin, and Lin Zhang
National Engineering Laboratory for Rice and By-products Further Processing, Central South University of Forestry and Technology.

This study aimed to develop a label-free, sensitive, selective, and environment-friendly fluorescent peptide probe His-His-Trp-His (HHWH) for determining the concentration of copper ion (Cu2+) in aqueous solutions. The results demonstrated that the designed HHWH has a high selectivity and sensitivity for monitoring the concentration of free Cu2+ via quenching of the probe fluorescence upon a binding of Cu2+. The fluorescence intensity of the HHWH had a linear relationship with the concentration of Cu2+ between 10 nM and 10 μM, and the detection limit was 8 nM. Furthermore, HHWH could be regenerated with sulfide ions at least five times. The concentrations of Cu2+ in three different real water samples were detected using this probe, and the results were consistent with the one detected using an atomic absorption spectrometer. Thus, HHWH can be used as an accurate and feasible fluorescent peptide probe for detecting Cu2+ in aqueous solutions.

UI MeSH Term Description Entries
D010455 Peptides Members of the class of compounds composed of AMINO ACIDS joined together by peptide bonds between adjacent amino acids into linear, branched or cyclical structures. OLIGOPEPTIDES are composed of approximately 2-12 amino acids. Polypeptides are composed of approximately 13 or more amino acids. PROTEINS are considered to be larger versions of peptides that can form into complex structures such as ENZYMES and RECEPTORS. Peptide,Polypeptide,Polypeptides
D003300 Copper A heavy metal trace element with the atomic symbol Cu, atomic number 29, and atomic weight 63.55. Copper-63,Copper 63
D005456 Fluorescent Dyes Chemicals that emit light after excitation by light. The wave length of the emitted light is usually longer than that of the incident light. Fluorochromes are substances that cause fluorescence in other substances, i.e., dyes used to mark or label other compounds with fluorescent tags. Flourescent Agent,Fluorescent Dye,Fluorescent Probe,Fluorescent Probes,Fluorochrome,Fluorochromes,Fluorogenic Substrates,Fluorescence Agents,Fluorescent Agents,Fluorogenic Substrate,Agents, Fluorescence,Agents, Fluorescent,Dyes, Fluorescent,Probes, Fluorescent,Substrates, Fluorogenic
D012995 Solubility The ability of a substance to be dissolved, i.e. to form a solution with another substance. (From McGraw-Hill Dictionary of Scientific and Technical Terms, 6th ed) Solubilities
D013050 Spectrometry, Fluorescence Measurement of the intensity and quality of fluorescence. Fluorescence Spectrophotometry,Fluorescence Spectroscopy,Spectrofluorometry,Fluorescence Spectrometry,Spectrophotometry, Fluorescence,Spectroscopy, Fluorescence
D014867 Water A clear, odorless, tasteless liquid that is essential for most animal and plant life and is an excellent solvent for many substances. The chemical formula is hydrogen oxide (H2O). (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed) Hydrogen Oxide
D057230 Limit of Detection Concentration or quantity that is derived from the smallest measure that can be detected with reasonable certainty for a given analytical procedure. Limits of Detection,Detection Limit,Detection Limits

Related Publications

Tao Yang, and Fang Zhu, and Tianxiao Zhou, and Jianzhong Cao, and Yibo Xie, and Meiyi Zhang, and Yan Wang, and Dong-Sheng Cao, and Qinlu Lin, and Lin Zhang
A label-free fluorescent peptide probe for sensitive and selective determination of copper and sulfide ions in aqueous systems.
February 2021, RSC advances,
Tao Yang, and Fang Zhu, and Tianxiao Zhou, and Jianzhong Cao, and Yibo Xie, and Meiyi Zhang, and Yan Wang, and Dong-Sheng Cao, and Qinlu Lin, and Lin Zhang
Label-free silicon quantum dots as fluorescent probe for selective and sensitive detection of copper ions.
July 2014, Talanta,
Tao Yang, and Fang Zhu, and Tianxiao Zhou, and Jianzhong Cao, and Yibo Xie, and Meiyi Zhang, and Yan Wang, and Dong-Sheng Cao, and Qinlu Lin, and Lin Zhang
A water-soluble near-infrared fluorescent probe for sensitive and selective detection of cysteine.
November 2019, Talanta,
Tao Yang, and Fang Zhu, and Tianxiao Zhou, and Jianzhong Cao, and Yibo Xie, and Meiyi Zhang, and Yan Wang, and Dong-Sheng Cao, and Qinlu Lin, and Lin Zhang
VS2 quantum dot label-free fluorescent probe for sensitive and selective detection of ALP.
February 2018, Analytical and bioanalytical chemistry,
Tao Yang, and Fang Zhu, and Tianxiao Zhou, and Jianzhong Cao, and Yibo Xie, and Meiyi Zhang, and Yan Wang, and Dong-Sheng Cao, and Qinlu Lin, and Lin Zhang
Label-free G-quadruplex-specific fluorescent probe for sensitive detection of copper(II) ion.
January 2013, Biosensors & bioelectronics,
Tao Yang, and Fang Zhu, and Tianxiao Zhou, and Jianzhong Cao, and Yibo Xie, and Meiyi Zhang, and Yan Wang, and Dong-Sheng Cao, and Qinlu Lin, and Lin Zhang
Autofluorescent Hyperbranched Poly(amide amine) as Effective Fluorescent Probe for Label-free Detection of Copper(II) Ions.
January 2017, Analytical sciences : the international journal of the Japan Society for Analytical Chemistry,
Tao Yang, and Fang Zhu, and Tianxiao Zhou, and Jianzhong Cao, and Yibo Xie, and Meiyi Zhang, and Yan Wang, and Dong-Sheng Cao, and Qinlu Lin, and Lin Zhang
Highly selective fluorescent probe for detecting mercury ions in water.
June 2023, RSC advances,
Tao Yang, and Fang Zhu, and Tianxiao Zhou, and Jianzhong Cao, and Yibo Xie, and Meiyi Zhang, and Yan Wang, and Dong-Sheng Cao, and Qinlu Lin, and Lin Zhang
A novel water-soluble fluorescent probe for the determination of methylamine.
October 2001, Fresenius' journal of analytical chemistry,
Tao Yang, and Fang Zhu, and Tianxiao Zhou, and Jianzhong Cao, and Yibo Xie, and Meiyi Zhang, and Yan Wang, and Dong-Sheng Cao, and Qinlu Lin, and Lin Zhang
Water Soluble Porphyrin for the Fluorescent Determination of Cadmium Ions.
May 2020, Journal of fluorescence,
Tao Yang, and Fang Zhu, and Tianxiao Zhou, and Jianzhong Cao, and Yibo Xie, and Meiyi Zhang, and Yan Wang, and Dong-Sheng Cao, and Qinlu Lin, and Lin Zhang
Label-free detection of folic acid using a sensitive fluorescent probe based on ovalbumin stabilized copper nanoclusters.
April 2019, Talanta,
Copied contents to your clipboard!