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Zhou X, Wang M, Chen J, Xie X, Su X. Peroxidase-like activity of Fe-N-C single-atom nanozyme based colorimetric detection of galactose. Anal Chim Acta 2020; 1128:72-79. [PMID: 32825914 DOI: 10.1016/j.aca.2020.06.027] [Citation(s) in RCA: 39] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Revised: 06/04/2020] [Accepted: 06/09/2020] [Indexed: 01/03/2023]
Abstract
Single atom nanozymes are the artificial enzymes with enzyme-like activity, which have attracted a great deal attention in recent years due to their unique merits such as remarkable stability, excellent atom utilization and low cost. Herein, a convenient and sensitive colorimetric strategy was developed for the sensing of galactose based on Fe-N-C single-atom nanozyme (Fe-SAzyme). The Fe-SAzyme was prepared through "isolation-pyrolysis" method that exhibited intrinsic peroxidase mimicking activity, which can quickly catalyze the oxidation of 3,3',5,5'-tetramethylbenzidine (TMB) to produce blue-colored oxTMB in the presence of hydrogen peroxide (H2O2). Galactose can be oxidized by galactose oxidase (Gal Ox) to generate H2O2, and Fe-SAzyme can be utilized for quantitative colorimetric detection of galactose. A good linearity between absorbance and the galactose concentration in the range of 50-500 μM was obtained with a detection limit of (LOD) 10 μM. The Fe-SAzyme based colorimetric strategy offered a rapid, convenient and economic way for galactose quantification detection, which could be used as an alternative method for galactosemia diagnosis.
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Affiliation(s)
- Xiaobin Zhou
- College of Chemistry, Jilin University, Changchun, 130012, PR China
| | - Mengke Wang
- College of Chemistry, Jilin University, Changchun, 130012, PR China
| | - Junyang Chen
- College of Chemistry, Jilin University, Changchun, 130012, PR China
| | - Xiaolei Xie
- College of Chemistry, Jilin University, Changchun, 130012, PR China
| | - Xingguang Su
- College of Chemistry, Jilin University, Changchun, 130012, PR China.
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Nie Y, Liu Y, Zhang Q, Su X, Ma Q. Novel coreactant modifier-based amplified electrochemiluminescence sensing method for point-of-care diagnostics of galactose. Biosens Bioelectron 2019; 138:111318. [DOI: 10.1016/j.bios.2019.111318] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2019] [Revised: 04/29/2019] [Accepted: 05/09/2019] [Indexed: 10/26/2022]
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Yang R, Cheng W, Chen X, Qian Q, Zhang Q, Pan Y, Duan P, Miao P. Color Space Transformation-Based Smartphone Algorithm for Colorimetric Urinalysis. ACS OMEGA 2018; 3:12141-12146. [PMID: 30320290 PMCID: PMC6175489 DOI: 10.1021/acsomega.8b01270] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Accepted: 09/13/2018] [Indexed: 05/21/2023]
Abstract
Urine strips are widely applied for rapid analysis of various indexes of urine for clinical examinations. The tests mainly rely on the application of a urine analyzer, which suffers several drawbacks and cannot meet the requirements of point-of-care testing (POCT). The integration of a smartphone with a biosensor has recently attracted great attention. We herein propose a human vision-based smartphone algorithm for colorimetric analysis of various urine indexes. A CIEDE2000 formula in CIELab color space is applied for the evaluation of color difference, which may greatly improve the analytical performances of urine strips. The proposed algorithm also possesses merits such as good accuracy, quantitative analysis, and limited calculation task, which is suitable for the application with smartphone platform. Experimental results demonstrate that the proposed method shows excellent reliability compared with the urine analyzer and some other algorithms. In addition, human real samples are successfully analyzed with excellent accuracy. Therefore, this work provides a convenient colorimetric tool for POCT urine analysis.
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Affiliation(s)
- Renbing Yang
- CAS
Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical
Engineering and Technology, Chinese Academy
of Sciences, Suzhou 215163, P. R. China
| | - Wenbo Cheng
- CAS
Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical
Engineering and Technology, Chinese Academy
of Sciences, Suzhou 215163, P. R. China
- State
Key Lab of Optical Technologies on Nano-Fabrication and Micro-Engineering,
Institute of Optics and Electronics, Chinese
Academy of Sciences, Chengdu 610209, P. R. China
- University
of Chinese Academy of Sciences, Beijing 100049, P. R.
China
- E-mail: (W.C.)
| | - Xifeng Chen
- CAS
Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical
Engineering and Technology, Chinese Academy
of Sciences, Suzhou 215163, P. R. China
- Tianjin
Guoke Jiaye Medical Technology Development Co., LTD, Tianjin 300399, P. R. China
| | - Qin Qian
- CAS
Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical
Engineering and Technology, Chinese Academy
of Sciences, Suzhou 215163, P. R. China
| | - Qiang Zhang
- CAS
Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical
Engineering and Technology, Chinese Academy
of Sciences, Suzhou 215163, P. R. China
| | - Yujun Pan
- CAS
Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical
Engineering and Technology, Chinese Academy
of Sciences, Suzhou 215163, P. R. China
| | - Peng Duan
- CAS
Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical
Engineering and Technology, Chinese Academy
of Sciences, Suzhou 215163, P. R. China
| | - Peng Miao
- CAS
Key Lab of Bio-Medical Diagnostics, Suzhou Institute of Biomedical
Engineering and Technology, Chinese Academy
of Sciences, Suzhou 215163, P. R. China
- E-mail: . Phone: +86-512-69588279 (P.M.)
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Li M, Yang J, Ou Y, Shi Y, Liu L, Sun C, Zheng H, Long Y. Peroxidase-like activity of 2',7'-difluorofluorescein and its application for galactose detection. Talanta 2018; 182:422-427. [PMID: 29501173 DOI: 10.1016/j.talanta.2018.02.020] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 01/29/2018] [Accepted: 02/06/2018] [Indexed: 01/19/2023]
Abstract
The peroxidase-like activity of 2',7'-difluorofluorescein (DFF), was investigated using 3,3',5,5'-tetramethylbenzidine (TMB) as a chromogenic substrate in the presence of H2O2. DFF could catalyze oxidization of TMB by H2O2 to produce a blue colored oxidation product. Effect of various reaction conditions, such as pH, temperature, H2O2 concentration and reaction time on the catalytic activity of DFF was studied. The peroxidase-like activity of DFF was found to follow Michaelis-Menten kinetics, and its catalysis accorded with ping-pong mechanism. The calculated kinetic parameters (Kcat) of DFF catalysis showed higher peroxidase-like activity than fluorescein and 2',7'-dichlorofluorescein (DCF). According to the radical capture and electron spin resonance (ESR) spectroscopy results, we confirmed that hydroxyl radical (•OH) is the active specie of catalytic process. It is known that the oxidation of galactose by galactose oxidase (GAOx) enzyme leads to the formation of H2O2, the H2O2 released in this reaction was consequently quantified using DFF as peroxides mimics and TMB as the chromogen. Thus, a combination of above two reactions was exploited to establish a method for galactose detection. Under the optimum conditions, the linear range of this method was from 10 μM to 20 mM with the detection limit down to 3 μM. Moreover, the developed method was applied to detect galactose in urine samples. Our work will facilitate the utilization of DFF intrinsic peroxidase-like activity in medical diagnostics and biotechnology.
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Affiliation(s)
- Menglu Li
- Key Laboratory on Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Juan Yang
- Key Laboratory on Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Yining Ou
- Key Laboratory on Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Ying Shi
- Key Laboratory on Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Li Liu
- Key Laboratory on Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Chaoqun Sun
- Key Laboratory on Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Huzhi Zheng
- Key Laboratory on Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China
| | - Yijuan Long
- Key Laboratory on Luminescent and Real-Time Analytical Chemistry, Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, PR China.
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