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Kongintr U, Lertanantawong B, Promptmas C. A Label-Free Electrochemical Biosensor for Homocysteine Detection Using Molecularly Imprinted Polymer and Nanocomposite-Modified Electrodes. Polymers (Basel) 2023; 15:polym15102241. [PMID: 37242816 DOI: 10.3390/polym15102241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 05/02/2023] [Accepted: 05/08/2023] [Indexed: 05/28/2023] Open
Abstract
An essential biomarker for the early detection of cardiovascular diseases is serum homocysteine (Hcy). In this study, a molecularly imprinted polymer (MIP) and nanocomposite were used to create a label-free electrochemical biosensor for reliable Hcy detection. A novel Hcy-specific MIP (Hcy-MIP) was synthesized using methacrylic acid (MAA) in the presence of trimethylolpropane trimethacrylate (TRIM). The Hcy-MIP biosensor was fabricated by overlaying the mixture of Hcy-MIP and the carbon nanotube/chitosan/ionic liquid compound (CNT/CS/IL) nanocomposite on the surface of a screen-printed carbon electrode (SPCE). It showed high sensitivity, with a linear response of 5.0 to 150 µM (R2 of 0.9753) and with a limit of detection (LOD) at 1.2 µM. It demonstrated low cross-reactivity with ascorbic acid, cysteine, and methionine. Recoveries of 91.10-95.83% were achieved when the Hcy-MIP biosensor was used for Hcy at 50-150 µM concentrations. The repeatability and reproducibility of the biosensor at the Hcy concentrations of 5.0 and 150 µM were very good, with coefficients of variation at 2.27-3.50% and 3.42-4.22%, respectively. This novel biosensor offers a new and effective method for Hcy assay compared with the chemiluminescent microparticle immunoassay at the correlation coefficient (R2) of 0.9946.
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Affiliation(s)
- Unchalee Kongintr
- Biosensor Laboratory, Department of Biomedical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom 73170, Thailand
- Faculty of Medical Technology, Huachiew Chalermprakiat University, Samut Prakan 10540, Thailand
| | - Benchaporn Lertanantawong
- Biosensor Laboratory, Department of Biomedical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom 73170, Thailand
| | - Chamras Promptmas
- Biosensor Laboratory, Department of Biomedical Engineering, Faculty of Engineering, Mahidol University, Nakhon Pathom 73170, Thailand
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Chen Z, Wu Y, Ouyang D, Lin Z. Covalent organic framework film-based laser desorption/ionization mass spectrometry for rapid and sensitive quantification of homocysteine in human serum. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2023; 37:e9463. [PMID: 36565285 DOI: 10.1002/rcm.9463] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/18/2022] [Revised: 12/20/2022] [Accepted: 12/22/2022] [Indexed: 06/17/2023]
Abstract
RATIONALE Homocysteine (hcy) is a metabolite in the human body and an important determinant of cardiovascular health. To assist in the assessment of human cardiovascular safety, a rapid and accurate quantitative analysis method must be developed. Laser desorption/ionization mass spectrometry (LDI-MS) has been widely used in biological, chemical, and medical analyses due to its excellent characteristics of high throughput, low sample consumption, and high speed. Here, an LDI-MS method based on covalent organic framework (COF) film was developed for the rapid and sensitive determination of hcy in human serum using an isotope-labeled internal standard. METHODS We tried to cultivate COFs on indium-tin oxide substrate at room temperature to form a thin film, which was used in LDI-MS. Compared with the traditional organic matrices, the COF film had a clean background and a high signal response for the detection of hcy. In addition, using COF film as the substrate, with a high signal intensity and a clean background, can be helpful to analyze a series of small molecules such as amino acids, bisphenols (Bps), estrogens, and drugs. We evaluated the limit of detection (LOD) and the reproducibility of this method. Finally, the calibration curve was constructed for the quantification of serum hcy using an isotope-labeled internal standard and was applied for the rapid determination of hcy in clinical human serum. RESULTS COF film-assisted LDI-MS had a higher response signal and a cleaner background compared to four conventional organic matrices. The LOD of the method for hcy was 0.5 μmol/L, equivalent to 500 fmol. This method exhibited excellent performance for small-molecule compounds, including amino acids, Bps, drugs, and estrogens. The reproducibilities of this method for shot-to-shot and dot-to-dot were determined to be good. This method was applied for the rapid analysis of hcy in clinical human serum, showing good correlation with those obtained by hospital testing. CONCLUSION The COF film-based LDI-MS method had simple sample preparation, short analysis time, clean background, and good reproducibility for hcy analysis. As an important indicator of human health, the detection of serum hcy is of great significance to human health.
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Affiliation(s)
- Zihan Chen
- Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, China
| | - Yijing Wu
- Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, China
| | - Dan Ouyang
- Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, China
| | - Zian Lin
- Ministry of Education Key Laboratory of Analytical Science for Food Safety and Biology, Fujian Provincial Key Laboratory of Analysis and Detection Technology for Food Safety, College of Chemistry, Fuzhou University, Fuzhou, China
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Metal nanoparticles-assisted early diagnosis of diseases. OPENNANO 2022. [DOI: 10.1016/j.onano.2022.100104] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Zhou X, Qi Y, Tang Y, Gao H, Lv L, Lei X, Hu L, Yan Z. Peroxidase-like activity of bimetal Cu-Zn oxide mesoporous nanospheres for the determination of o-aminophenol. Mikrochim Acta 2022; 189:314. [PMID: 35925496 DOI: 10.1007/s00604-022-05421-3] [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: 05/16/2022] [Accepted: 07/14/2022] [Indexed: 10/16/2022]
Abstract
To enhance the peroxidase-like performance and its application in detection of toxic o-aminophenol (o-AP), a kind of bimetal Cu-Zn oxide-based mesoporous nanosphere (Cu2/3Zn1/3O PNPs) was constructed under microwave-radiation conditions. Its mesoporous microstructure and peroxidase-like catalytic activity were investigated in detail. The results showed that Cu2/3Zn1/3O PNPs possessed a high specific surface area of 34.89 m2g-1 and a well-distributed mesoporous size of approximate 6.07 nm, which endowed the superior peroxidase-like performance. The material catalyzes the oxidization of 3,3',5,5'-tetramethylbenzidine (TMB) with Km/Vmax of 0.104 mM/3.79 × 10-8 M·s-1 in the presence of H2O2. Especially o-AP could exclusively deteriorate the characteristic UV-Vis absorbance intensity at 653 nm (A653) of the Cu2/3Zn1/3O PNPs-TMB-H2O2 system with obvious color change from blue to colorless. Under the optimal conditions, the effect of some interfering substances was low and the limit of detection (LOD) for o-AP was 1.65 × 10-8 mol/L (S/N = 3). When applied to the colorimetric detection of o-AP in practice, the recovery was between 96.1 and 107.2% with R.S.D. less than 2.04%. The mechanism of synergic-enhancement peroxidase-mimic activity of Cu2/3Zn1/3O PNPs and its exclusive colorimetric response to o-AP were proposed as well.
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Affiliation(s)
- Xuemei Zhou
- School of Chemistry and Chemical Engineering &, Shandong Key Laboratory of Life-Organic Analysis, Qufu Normal University, Qufu, 273165, China
| | - Yuji Qi
- School of Chemistry and Chemical Engineering &, Shandong Key Laboratory of Life-Organic Analysis, Qufu Normal University, Qufu, 273165, China
| | - Yulian Tang
- School of Chemistry and Chemical Engineering &, Shandong Key Laboratory of Life-Organic Analysis, Qufu Normal University, Qufu, 273165, China
| | - Hui Gao
- School of Chemistry and Chemical Engineering &, Shandong Key Laboratory of Life-Organic Analysis, Qufu Normal University, Qufu, 273165, China
| | - Li Lv
- School of Chemistry and Chemical Engineering &, Shandong Key Laboratory of Life-Organic Analysis, Qufu Normal University, Qufu, 273165, China
| | - Xingyu Lei
- School of Chemistry and Chemical Engineering &, Shandong Key Laboratory of Life-Organic Analysis, Qufu Normal University, Qufu, 273165, China
| | - Lei Hu
- School of Chemistry and Chemical Engineering &, Shandong Key Laboratory of Life-Organic Analysis, Qufu Normal University, Qufu, 273165, China.
| | - Zhengquan Yan
- School of Chemistry and Chemical Engineering &, Shandong Key Laboratory of Life-Organic Analysis, Qufu Normal University, Qufu, 273165, China.
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Chen F, Zhu H, Lv N, Li Q, Ma T, Wang L, Zhou M, Cao S, Luo X, Cheng C. π-Conjugated Copper Phthalocyanine Nanoparticles as Highly Sensitive Sensor for Colorimetric Detection of Biomarkers. Chemistry 2022; 28:e202104591. [PMID: 35394659 DOI: 10.1002/chem.202104591] [Citation(s) in RCA: 13] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2021] [Indexed: 02/05/2023]
Abstract
Though numerous nanomaterials with enzyme-like activities have been utilized as probes and sensors for detecting biological molecules, it is still challenging to construct highly sensitive detectors for biomarkers using polymeric materials. Benefiting from the π-d delocalization effect of electrons, excellent metal-chelating property, high electron transferability, and good chemical stability of π-conjugated phthalocyanine, the design of the copper phthalocyanine-based conjugated polymer nanoparticles (Cu-PcCP NPs) as a colorimetric sensor for a variety of biomarkers is reported. The Cu-PcCP NPs are synthesized through a simple microwave-assisted polymerization, and their chemical structures are thoroughly characterized. The colorimetric results of Cu-PcCP NPs demonstrate excellent peroxidase-like detecting activity and also great substrate selectivity than most of the reported Cu-based nanomaterials. The Cu-PcCP NPs can achieve a detection limit of 4.88 μM for the H2 O2 , 4.27 μM for the L-cysteine, and 21.10 μM for the glucose via a cascade catalytic system, which shows comparable detecting sensitivity as that of many earlier reported enzyme-like nanomaterials. Moreover, Cu-PcCP NPs present remarkable resistance to harsh conditions, including high temperature, low pH, and excessive salts. These highly specific π-conjugated copper-phthalocyanine nanoparticles not only overcome the current limitation of polymeric material-based sensors but also provide a new direction for designing next-generation enzyme-like nanomaterial-based colorimetric biosensors.
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Affiliation(s)
- Fan Chen
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Huang Zhu
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Ning Lv
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Qian Li
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Tian Ma
- Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Liyun Wang
- Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Mi Zhou
- College of Biomass Science and Engineering, Sichuan University, Chengdu, 610065, China
| | - Sujiao Cao
- Department of Ultrasound, West China Hospital, Sichuan University, Chengdu, 610041, China
| | - Xianglin Luo
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
| | - Chong Cheng
- College of Polymer Science and Engineering, State Key Laboratory of Polymer Materials Engineering, Sichuan University, Chengdu, 610065, China
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Jena SK, Sadasivam R, Packirisamy G, Saravanan P. Nanoremediation: Sunlight mediated dye degradation using electrospun PAN/CuO-ZnO nanofibrous composites. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 280:116964. [PMID: 33794417 DOI: 10.1016/j.envpol.2021.116964] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2020] [Revised: 01/22/2021] [Accepted: 03/13/2021] [Indexed: 06/12/2023]
Abstract
This work demonstrated the development of nanofiber templated metal oxide nanocomposites by hydrothermal and calcination methods for photocatalytic degradation using Congo red (CR) as model pollutant. Herein, we developed PAN/CuO-ZnO nanocomposites by the electrospinning technique followed by heat treatment process i.e hydrothermal and calcination. The obtained nanofibrous composites were characterized by various analytical techniques such as X-Ray Diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Thermogravimetric analysis (TG), High-resolution transmission electron microscopy (HRTEM), X-ray photoelectron spectroscopy (XPS), Photoluminescence (PL) and UV-Vis diffuse reflectance spectroscopy (DRS) studies. The results demostrated that the nanocomposites obtained through calcination possess better optical response with robust electronic structures. This is due to the better charge separation of excited electron-hole pairs of p-n heterostructured PAN/CuO-ZnO hybrid nanocomposites. The photocatalytic efficiency is found to be 98% and 93% for nanocomposites obtained through calcination and hydrothermal methods respectively. The reusability studies confirmed the stability and viability of multiple utilizations of photocatalysts. Furthermore, the photocatalytic mechanism corroborated the photocatalytic properties of the integrated facile nanofibrous-metallic (PAN/CuO-ZnO) composites and hence can be implemented in water remediation effectively.
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Affiliation(s)
- Sandeep Kumar Jena
- Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India
| | - Rajkumar Sadasivam
- Nano-biotechnology Laboratory, Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India.
| | - Gopinath Packirisamy
- Department of Biotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India; Nano-biotechnology Laboratory, Centre for Nanotechnology, Indian Institute of Technology Roorkee, Roorkee, Uttarakhand, 247667, India.
| | - Pichiah Saravanan
- Environmental Nanotechnology Laboratory, Departrmnet of Environmnetal Science & Engineering, Indian Institute of Technology(ISM)Dhanbad, Dhanbad, Jharkhand, 826004, India
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Georgiou CD. Functional Properties of Amino Acid Side Chains as Biomarkers of Extraterrestrial Life. ASTROBIOLOGY 2018; 18:1479-1496. [PMID: 30129781 PMCID: PMC6211371 DOI: 10.1089/ast.2018.1868] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/20/2018] [Accepted: 07/10/2018] [Indexed: 05/22/2023]
Abstract
The present study proposes to search our solar system (Mars, Enceladus, Europa) for patterns of organic molecules that are universally associated with biological functions and structures. The functions are primarily catalytic because life could only have originated within volume/space-constrained compartments containing chemical reactions catalyzed by certain polymers. The proposed molecular structures are specific groups in the side chains of amino acids with the highest catalytic propensities related to life on Earth, that is, those that most frequently participate as key catalytic groups in the active sites of enzymes such as imidazole, thiol, guanidinium, amide, and carboxyl. Alternatively, these or other catalytic groups can be searched for on non-amino-acid organic molecules, which can be tested for certain hydrolytic catalytic activities. The first scenario assumes that life may have originated in a similar manner as the terrestrial set of α-amino acids, while the second scenario does not set such a requirement. From the catalytic propensity perspective proposed in the first scenario, life must have invented amino acids with high catalytic propensity (His, Cys, Arg) in order to overcome, and be complemented by, the low catalytic propensity of the initially available abiogenic amino acids. The abiogenic and the metabolically invented amino acids with the lowest catalytic propensity can also serve as markers of extraterrestrial life when searching for patterns on the basis of the following functional propensities related to protein secondary/quaternary structure: (1) amino acids that are able to form α-helical intramembrane peptide domains, which can serve as primitive transporters in protocell membrane bilayers and catalysts of simple biochemical reactions; (2) amino acids that tend to accumulate in extremophile proteins of Earth and possibly extraterrestrial life. The catalytic/structural functional propensity approach offers a new perspective in the search for extraterrestrial life and could help unify previous amino acid-based approaches.
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Sundaram S, Kadir MRA. A New Highly Conducting Carbon Black (CL-08) Modified Electrode Functionalized with Syringic Acid for Sensitive and Selective L-Cysteine Electrocatalysis at Low Potential. Electrochim Acta 2017. [DOI: 10.1016/j.electacta.2016.12.093] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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WANG X, YANG KC, MAO ZY, HUANG CZ, WANG J. Determination of L-Cysteine Based on Energy Transfer between Cu2-xSe Nanoparticles and Rhodamine B. CHINESE JOURNAL OF ANALYTICAL CHEMISTRY 2016. [DOI: 10.1016/s1872-2040(16)60960-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Sharma VK, Trnkova L. Copper Nanoparticle Modified Pencil Graphite Electrode for Electroanalysis of Adenine. ELECTROANAL 2016. [DOI: 10.1002/elan.201600237] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Vimal Kumar Sharma
- Department of Chemistry; Faculty of Science; Masaryk University; Kamenice 5 CZ-625 00 Brno Czech Republic
| | - Libuse Trnkova
- Department of Chemistry; Faculty of Science; Masaryk University; Kamenice 5 CZ-625 00 Brno Czech Republic
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