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Niyitanga T, Pathak A, Chaudhary A, Khan RA, Kim H. MoS 2/S@g-CN Composite Electrode for L-Tryptophan Sensing. Biosensors (Basel) 2023; 13:967. [PMID: 37998142 PMCID: PMC10669109 DOI: 10.3390/bios13110967] [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] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Revised: 10/19/2023] [Accepted: 10/26/2023] [Indexed: 11/25/2023]
Abstract
L-tryptophan (L-TRP) is an essential amino acid responsible for the establishment and maintenance of a positive nitrogen equilibrium in the nutrition of human beings. Therefore, it is vital to quantify the amount of L-tryptophan in our body. Herein, we report the MoS2/S@g-CN-modified glassy carbon electrode for the electrochemical detection of L-tryptophan (L-TRP). The MoS2/S@g-CN composite was successfully synthesized using an efficient and cost-effective hydrothermal method. The physical and chemical properties of the synthesized composite were analyzed using powder X-ray diffraction (PXRD), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and energy-dispersive X-ray analysis (EDX). The crystallite size of the composite was calculated as 39.4 nm, with porous balls of MoS2 decorated over the S@g-CN surface. The XPS spectrum confirmed the presence of Mo, S, O, C, and N elements in the sample. The synthesized nanocomposite was further used to modify the glassy carbon (GC) electrode (MoS2/S@g-CN/GC). This MoS2/S@g-CN/GC was used for the electrochemical detection of L-TRP using cyclic voltammetry (CV) and differential pulse voltammetry (DPV) techniques. For the purpose of comparison, the effects of the scanning rate and the concentration of L-TRP on the current response for the bare GC, S@g-CN/GC, MoS2/GC, and MoS2/S@g-CN/GC were studied in detail. The MoS2/S@g-CN-modified GC electrode exhibited a rational limit of detection (LoD) of 0.03 µM and a sensitivity of 1.74 µA/ µMcm2, with excellent stability, efficient repeatability, and high selectivity for L-TRP detection.
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Affiliation(s)
- Theophile Niyitanga
- School of Materials Science and Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
| | - Aarti Pathak
- Department of Chemistry, Medi-Caps University, Indore 453331, Madhya Pradesh, India (A.C.)
| | - Archana Chaudhary
- Department of Chemistry, Medi-Caps University, Indore 453331, Madhya Pradesh, India (A.C.)
- Research and Development Cell, Indian Institute of Technology, Indore 453552, Madhya Pradesh, India
| | - Rais Ahmad Khan
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Haekyoung Kim
- School of Materials Science and Engineering, Yeungnam University, Gyeongsan 38541, Republic of Korea
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Abdelaziz MH, El Sawy EN, Abdelnaser A. A Novel Electrochemical Differentiation between Exosomal-RNA of Breast Cancer MCF7 and MCF7/ADR-Resistant Cells. Pharmaceuticals (Basel) 2023; 16:ph16040540. [PMID: 37111297 PMCID: PMC10145523 DOI: 10.3390/ph16040540] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2023] [Revised: 03/09/2023] [Accepted: 03/23/2023] [Indexed: 04/29/2023] Open
Abstract
Cancer is considered one of the most burdensome diseases affecting lives and, hence, the economy. Breast cancer is one of the most common types of cancer. Patients with breast cancer are divided into two groups: one group responds to the chemotherapy, and the other group resists the chemotherapy. Unfortunately, the group which resists the chemotherapy is still suffering the pain associated with the severe side effects of the chemotherapy. Therefore, there is a critical need for a method to differentiate between both groups before the administration of the chemotherapy. Exosomes, the recently discovered nano-vesicles, are often used as cancer diagnostic biomarkers as their unique composition allows them to represent their parental cells, which makes them promising indicators for tumor prognosis. Exosomes contain proteins, lipids, and RNA that exist in most body fluids and are expelled by multiple cell types, including cancer cells. Furthermore, exosomal RNA has been significantly used as a promising biomarker for tumor prognosis. Herein, we have developed an electrochemical system that could successfully differentiate between MCF7 and MCF7/ADR depending on the exosomal RNA. The high sensitivity of the proposed electrochemical assay opens the door for further investigation that will address the other type of cancer cells.
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Affiliation(s)
- Mohammed H Abdelaziz
- Chemistry Department, School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt
- Institute of Global Health and Human Ecology, The American University in Cairo, New Cairo 11835, Egypt
| | - Ehab N El Sawy
- Chemistry Department, School of Sciences and Engineering, The American University in Cairo, New Cairo 11835, Egypt
| | - Anwar Abdelnaser
- Institute of Global Health and Human Ecology, The American University in Cairo, New Cairo 11835, Egypt
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Erdem A, Eksin E. Zip Nucleic Acid-Based Genomagnetic Assay for Electrochemical Detection of microRNA-34a. Biosensors (Basel) 2023; 13:bios13010144. [PMID: 36671979 PMCID: PMC9856502 DOI: 10.3390/bios13010144] [Citation(s) in RCA: 1] [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: 11/06/2022] [Revised: 12/20/2022] [Accepted: 12/23/2022] [Indexed: 05/17/2023]
Abstract
Zip nucleic acid (ZNA)-based genomagnetic assay was developed herein for the electrochemical detection of microRNA-34a (miR-34a), which is related to neurological disorders and cancer. The hybridization between the ZNA probe and miR-34a target was performed in the solution phase; then, the resultant hybrids were immobilized onto the surface of magnetic beads (MBs). After magnetic separation, the hybrids were separated from the surface of MBs and then immobilized on the surface of pencil graphite electrodes (PGEs). In the case of a full-match hybridization, the guanine oxidation signal was measured via the differential pulse voltammetry (DPV) technique. All the experimental parameters that influenced the hybridization efficiency (i.e., hybridization strategy, probe concentration, hybridization temperature, etc.) were optimized. The cross-selectivity of the genomagnetic assay was tested against two different miRNAs, miR-155 and miR-181b, individually as well as in mixture samples. To show the applicability of the ZNA-based genomagnetic assay for miR-34a detection in real samples, a batch of experiments was carried out in this study by using the total RNA samples isolated from the human hepatocellular carcinoma cell line (HUH-7).
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Affiliation(s)
- Arzum Erdem
- Department of Analytical Chemistry, Faculty of Pharmacy, Ege University, Izmir 35100, Turkey
- Correspondence: ; Tel.: +90-232-311-5131
| | - Ece Eksin
- Department of Analytical Chemistry, Faculty of Pharmacy, Ege University, Izmir 35100, Turkey
- Biomedical Device Technology Program, Vocational School of Health Services, Izmir Democracy University, Izmir 35290, Turkey
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Zhao Y, Zhang H, Li Y, Wang X, Zhao L, Xu J, Zhan Z, Zhang G, Li WJ. Glycated Hemoglobin Electrochemical Immunosensor Based on Screen-Printed Electrode. Biosensors (Basel) 2022; 12:902. [PMID: 36291040 PMCID: PMC9599171 DOI: 10.3390/bios12100902] [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] [Figures] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 10/04/2022] [Accepted: 10/10/2022] [Indexed: 06/16/2023]
Abstract
An electrochemical HbA1c sensor with high sensitivity and good specificity is proposed based on the electrochemical immune principle. The reproducibility and conductivity of the electrode are improved by depositing gold nanoparticles (AuNPs) on the surface of the screen-printed electrode (SPE). The HbA1c antibodies are immobilized on the surface of the modified electrode by adsorption to capture the HbA1c in the sample. The hindering effect of HbA1c on the electrode transfer reaction was exploited as the HbA1c detection mechanism. The electrode's properties were characterized by electrochemical impedance spectroscopy (EIS), and the measurement properties of the electrode were analyzed using differential pulse voltammetry (DPV) and cyclic voltammetry (CV). The experimental results show that the peak current signal of the electrochemical immunosensor produced a linear response to HbA1c in the concentration range of 20-200 μg/mL, a linear relationship coefficient of 0.9812, a detection limit of 15.5 µg/mL, and a sensitivity of 0.0938 µA/µg·mL-1. The sensor delivered satisfactory repeatability, stability, and anti-interference performance. Due to its small size, high sensitivity, and wide linear detection range, it is expected to play a significant role in managing diabetes at home.
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Affiliation(s)
- Yuliang Zhao
- School of Control Engineering, Northeastern University at Qinhuangdao, Qinhuangdao 066004, China
| | - Hongyu Zhang
- Department of Mechanical Engineering, City University of Hong Kong, Hong Kong SAR 999077, China
| | - Yang Li
- Key Laboratory of Intelligent Rehabilitation and Neuromodulation of Hebei Province, School of Electrical Engineering, Yanshan University, Qinhuangdao 066004, China
| | - Xiaoai Wang
- School of Control Engineering, Northeastern University at Qinhuangdao, Qinhuangdao 066004, China
| | - Liang Zhao
- Dalian Institute of Measurement and Testing, Dalian 116033, China
| | - Jianghong Xu
- Qinhuangdao Hospital of Traditional Chinese Medicine, Qinhuangdao 066004, China
| | - Zhikun Zhan
- Key Laboratory of Intelligent Rehabilitation and Neuromodulation of Hebei Province, School of Electrical Engineering, Yanshan University, Qinhuangdao 066004, China
- School of Computer and Communication Engineering, Northeastern University at Qinhuangdao, Qinhuangdao 066004, China
| | - Guanglie Zhang
- City University of Hong Kong Shenzhen Research Institute, Shenzhen 518057, China
| | - Wen Jung Li
- Department of Mechanical Engineering, City University of Hong Kong, Hong Kong SAR 999077, China
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Drobysh M, Liustrovaite V, Baradoke A, Viter R, Chen CF, Ramanavicius A, Ramanaviciene A. Determination of rSpike Protein by Specific Antibodies with Screen-Printed Carbon Electrode Modified by Electrodeposited Gold Nanostructures. Biosensors (Basel) 2022; 12:bios12080593. [PMID: 36004989 PMCID: PMC9405582 DOI: 10.3390/bios12080593] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [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: 07/01/2022] [Revised: 07/22/2022] [Accepted: 07/27/2022] [Indexed: 05/31/2023]
Abstract
In this research, we assessed the applicability of electrochemical sensing techniques for detecting specific antibodies against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) spike proteins in the blood serum of patient samples following coronavirus disease 2019 (COVID-19). Herein, screen-printed carbon electrodes (SPCE) with electrodeposited gold nanostructures (AuNS) were modified with L-Cysteine for further covalent immobilization of recombinant SARS-CoV-2 spike proteins (rSpike). The affinity interactions of the rSpike protein with specific antibodies against this protein (anti-rSpike) were assessed using cyclic voltammetry (CV) and differential pulse voltammetry (DPV) methods. It was revealed that the SPCE electroactive surface area increased from 1.49 ± 0.02 cm2 to 1.82 ± 0.01 cm2 when AuNS were electrodeposited, and the value of the heterogeneous electron transfer rate constant (k0) changed from 6.30 × 10-5 to 14.56 × 10-5. The performance of the developed electrochemical immunosensor was evaluated by calculating the limit of detection and limit of quantification, giving values of 0.27 nM and 0.81 nM for CV and 0.14 nM and 0.42 nM for DPV. Furthermore, a specificity test was performed with a solution of antibodies against bovine serum albumin as the control aliquot, which was used to assess nonspecific binding, and this evaluation revealed that the developed rSpike-based sensor exhibits low nonspecific binding towards anti-rSpike antibodies.
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Affiliation(s)
- Maryia Drobysh
- State Research Institute Center for Physical and Technological Sciences, Sauletekio Ave. 3, LT-10257 Vilnius, Lithuania; (M.D.); (A.B.)
- NanoTechnas—Center of Nanotechnology and Materials Science, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko Str. 24, LT-03225 Vilnius, Lithuania; (V.L.); (A.R.)
| | - Viktorija Liustrovaite
- NanoTechnas—Center of Nanotechnology and Materials Science, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko Str. 24, LT-03225 Vilnius, Lithuania; (V.L.); (A.R.)
| | - Ausra Baradoke
- State Research Institute Center for Physical and Technological Sciences, Sauletekio Ave. 3, LT-10257 Vilnius, Lithuania; (M.D.); (A.B.)
| | - Roman Viter
- Institute of Atomic Physics and Spectroscopy, University of Latvia, Jelgavas Street 3, LV-1004 Riga, Latvia;
- Center for Collective Use of Research Equipment, Sumy State University, 31 Sanatorna Street, 40000 Sumy, Ukraine
| | - Chien-Fu Chen
- Institute of Applied Mechanics, National Taiwan University, 1 Sec. 4, Roosevelt Rd., Da’an Dist., Taipei City 106, Taiwan;
| | - Arunas Ramanavicius
- State Research Institute Center for Physical and Technological Sciences, Sauletekio Ave. 3, LT-10257 Vilnius, Lithuania; (M.D.); (A.B.)
- NanoTechnas—Center of Nanotechnology and Materials Science, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko Str. 24, LT-03225 Vilnius, Lithuania; (V.L.); (A.R.)
| | - Almira Ramanaviciene
- NanoTechnas—Center of Nanotechnology and Materials Science, Faculty of Chemistry and Geosciences, Vilnius University, Naugarduko Str. 24, LT-03225 Vilnius, Lithuania; (V.L.); (A.R.)
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Hu C, Wei G, Zhu F, Wu A, Luo L, Shen S, Zhang J. Platinum-Based Nanocomposite Pt@BSA as an Efficient Electrochemical Biosensing Interface for Rapid and Ultrasensitive Determination of Folate Receptor-Positive Tumor Cells. ACS Appl Bio Mater 2022; 5:3038-3048. [PMID: 35544589 DOI: 10.1021/acsabm.2c00332] [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] [Indexed: 12/24/2022]
Abstract
Developing a cytosensing strategy based on electrochemical approaches has attracted wide interest due to the low cost, rapid response, and simple instrumentation. In this work, an electrochemical cytosensor employing the Pt@BSA nanocomposite as the biosensing substrate along with the covalent cross-linking of targeting molecules folic acid (FA) was constructed for highly sensitive determination of folate receptor (FR)-positive tumor cells. The prepared Pt@BSA nanocomposite revealed excellent biocompatibility for cell adhesion and proliferation, which was confirmed by cell viability evaluation using thiazolyl blue tetrazolium bromide (MTT) colorimetric methods. Due to the satisfactory electrical conductivity originating from Pt@BSA and the high binding affinity of FA to FR on the cell surface, an ultrasensitive and specific cytosensing device was designed for rapid and quantitative determination of HeLa cells (a model system) by differential pulse voltammetry (DPV) tests. This proposed cytosensor resulted in a wide HeLa cell determination range of 2.8 × 101-2.8 × 106 cells mL-1 with a low DPV detection limit of 9 cells mL-1. The developed cytosensing approach exhibited highly specific recognition of FR-positive tumor cells, excellent inter-assay reproducibility with a relative standard deviation (RSD) of 4.7%, acceptable intra-assay precision, and favorable storage stability, expanding the application of electrochemical measurement technology in the biomedical field of early detection and diagnosis of cancers.
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Affiliation(s)
- Chenyi Hu
- Institute of Fuel Cells, Key Laboratory of Power Machinery and Engineering of MOE, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Guanghua Wei
- SJTU-Paris Tech Elite Institute of Technology, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Fengjuan Zhu
- Institute of Fuel Cells, Key Laboratory of Power Machinery and Engineering of MOE, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Aiming Wu
- Institute of Fuel Cells, Key Laboratory of Power Machinery and Engineering of MOE, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Liuxuan Luo
- Institute of Fuel Cells, Key Laboratory of Power Machinery and Engineering of MOE, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Shuiyun Shen
- Institute of Fuel Cells, Key Laboratory of Power Machinery and Engineering of MOE, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
| | - Junliang Zhang
- Institute of Fuel Cells, Key Laboratory of Power Machinery and Engineering of MOE, School of Mechanical Engineering, Shanghai Jiao Tong University, Shanghai 200240, China
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He X, Wang X, Ge C, Li S, Wang L, Xu Y. Detection of VEGF 165 in Whole Blood by Differential Pulse Voltammetry Based on a Centrifugal Microfluidic Chip. ACS Sens 2022; 7:1019-1026. [PMID: 35362948 DOI: 10.1021/acssensors.1c02641] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
For the rapid and sensitive detection of vascular endothelial growth factor 165 (VEGF165) in clinical blood samples, a microfluidic sensing chip that integrates a centrifugal separation pretreatment unit and a composite nanosensing film was proposed in this paper. An efficient sensing strategy and method was established. The blood sample was first separated and extracted by centrifugal force on the centrifugal microfluidic chip within 5 min after injection. The separated plasma can be automatically transferred through the designed microchannels to the detection area integrated electrodes for subsequent differential pulse voltammetric detection. The Au NPs/MCH/Apt2 sensing film was constructed on the surface of the Au working electrode. A sandwich sensing strategy based on "double aptamers" and "nanoprobe" for VEGF165 detection was established, by which the synthetic Apt1/PThi/Au NP nanoprobe was applied to capture VEGF165 in plasma and bind to the sensing film. By this method, the detection limit of VEGF165 in whole blood was 0.67 pg/mL and the linear range was between 1 pg and 10 ng, which met the needs of clinical VEGF165 detection. It was illustrated that the proposed methodology based on the centrifugal microfluidic chip had potential application prospects in the development of the point-of-care testing fields.
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Affiliation(s)
- Xinyu He
- Key Disciplines Lab of Novel Micro-Nano Devices and System Technology, Key Laboratory of Optoelectronic Technology and Systems, Ministry of Education, Chongqing University, Shapingba, Chongqing 400044, PR China
- School of Chemistry and Chemical Engineering, Chongqing University, Shapingba, Chongqing 400044, PR China
| | - Xiaoli Wang
- Key Disciplines Lab of Novel Micro-Nano Devices and System Technology, Key Laboratory of Optoelectronic Technology and Systems, Ministry of Education, Chongqing University, Shapingba, Chongqing 400044, PR China
- School of Optoelectronic Engineering, Chongqing University, Shapingba, Chongqing 400044, PR China
| | - Chuang Ge
- Key Laboratory of Translational Research for Cancer Metastasis and Individualized Treatment, Chongqing University Cancer Hospital, Chongqing 400030, PR China
| | - Shunbo Li
- Key Disciplines Lab of Novel Micro-Nano Devices and System Technology, Key Laboratory of Optoelectronic Technology and Systems, Ministry of Education, Chongqing University, Shapingba, Chongqing 400044, PR China
- School of Optoelectronic Engineering, Chongqing University, Shapingba, Chongqing 400044, PR China
| | - Li Wang
- Key Disciplines Lab of Novel Micro-Nano Devices and System Technology, Key Laboratory of Optoelectronic Technology and Systems, Ministry of Education, Chongqing University, Shapingba, Chongqing 400044, PR China
- School of Optoelectronic Engineering, Chongqing University, Shapingba, Chongqing 400044, PR China
| | - Yi Xu
- Key Disciplines Lab of Novel Micro-Nano Devices and System Technology, Key Laboratory of Optoelectronic Technology and Systems, Ministry of Education, Chongqing University, Shapingba, Chongqing 400044, PR China
- School of Chemistry and Chemical Engineering, Chongqing University, Shapingba, Chongqing 400044, PR China
- School of Optoelectronic Engineering, Chongqing University, Shapingba, Chongqing 400044, PR China
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Ipte PR, Manna S, Sahoo S, Satpati AK. Probing the interaction of anti-HIV drug Darunavir with dsDNA and HSA using electrochemical and spectroscopic measurements. J Environ Sci Health A Tox Hazard Subst Environ Eng 2022; 56:1435-1444. [PMID: 34986753 DOI: 10.1080/10934529.2021.2008205] [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: 06/04/2021] [Revised: 10/28/2021] [Accepted: 10/29/2021] [Indexed: 06/14/2023]
Abstract
Investigation of electrochemical and spectroscopic characteristics of anti-human immunodeficiency virus (HIV) drug provides important information related to the efficacy of the drug in relation with its interaction with several important biomolecules. In the present investigation we have developed an electrochemical and spectroscopic method for the detection of anti-HIV drug Darunavir (DRV) using the carbon paste as the working electrode. The analytical method has generated the detection limit of 1.86 µM (S/N = 3). The electrochemical investigations have also been carried out for the exploration of the interaction of DRV with double stranded deoxyribose nucleic acid DNA (dsDNA) and human serum albumin (HSA). Electrochemical investigations were supported from the spectroscopic measurements in evaluating the interaction. The results obtained from voltammetric and spectroscopic experiments shows strong interaction between the drug and the macromolecules. It has been observed that DRV forms strong complexes with HSA and dsDNA with the formation constants of 2.7 × 104 and 4.2 × 104 M-1 respectively. The formation constants are varied with the pH of the solution, which leads to the assertion of the mechanism of the interaction between DRV and dsDNA.
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Affiliation(s)
- Priyanka R Ipte
- Analytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Sudipa Manna
- Analytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Srikant Sahoo
- Analytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai, India
| | - Ashis Kumar Satpati
- Analytical Chemistry Division, Bhabha Atomic Research Centre, Mumbai, India
- Homi Bhabha National Institute, Mumbai, India
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Azmi UZM, Yusof NA, Abdullah J, Mohammad F, Ahmad SAA, Suraiya S, Raston NHA, Faudzi FNM, Khiste SK, Al-Lohedan HA. Aptasensor for the Detection of Mycobacterium tuberculosis in Sputum Utilising CFP10-ESAT6 Protein as a Selective Biomarker. Nanomaterials (Basel) 2021; 11:2446. [PMID: 34578762 PMCID: PMC8470133 DOI: 10.3390/nano11092446] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 09/07/2021] [Accepted: 09/09/2021] [Indexed: 11/17/2022]
Abstract
A portable electrochemical aptamer-antibody based sandwich biosensor has been designed and successfully developed using an aptamer bioreceptor immobilized onto a screen-printed electrode surface for Mycobacterium tuberculosis (M. tuberculosis) detection in clinical sputum samples. In the sensing strategy, a CFP10-ESAT6 binding aptamer was immobilized onto a graphene/polyaniline (GP/PANI)-modified gold working electrode by covalent binding via glutaraldehyde linkage. Upon interaction with the CFP10-ESAT6 antigen target, the aptamer will capture the target where the nano-labelled Fe3O4/Au MNPs conjugated antibody is used to complete the sandwich format and enhance the signal produced from the aptamer-antigen interaction. Using this strategy, the detection of CFP10-ESAT6 antigen was conducted in the concentration range of 5 to 500 ng/mL. From the analysis, the detection limit was found to be 1.5 ng/mL, thereby demonstrating the efficiency of the aptamer as a bioreceptor. The specificity study was carried out using bovine serum albumin (BSA), MPT64, and human serum, and the result demonstrated good specificity that is 7% higher than the antibody-antigen interaction reported in a previous study. The fabricated aptasensor for M. tuberculosis analysis shows good reproducibility with an relative standard deviation (RSD) of 2.5%. Further analysis of M. tuberculosis in sputum samples have shown good correlation with the culture method with 100% specificity and sensitivity, thus making the aptasensor a promising candidate for M. tuberculosis detection considering its high specificity and sensitivity with clinical samples.
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Affiliation(s)
- Umi Zulaikha Mohd Azmi
- Institute of Advanced Technology, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (U.Z.M.A.); (J.A.); (S.A.A.A.); (F.N.M.F.)
| | - Nor Azah Yusof
- Institute of Advanced Technology, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (U.Z.M.A.); (J.A.); (S.A.A.A.); (F.N.M.F.)
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Jaafar Abdullah
- Institute of Advanced Technology, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (U.Z.M.A.); (J.A.); (S.A.A.A.); (F.N.M.F.)
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Faruq Mohammad
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia;
| | - Shahrul Ainliah Alang Ahmad
- Institute of Advanced Technology, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (U.Z.M.A.); (J.A.); (S.A.A.A.); (F.N.M.F.)
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia
| | - Siti Suraiya
- School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan 16150, Malaysia;
| | - Nurul Hanun Ahmad Raston
- School of Biosciences and Biotechnology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, UKM Bangi 43600, Selangor, Malaysia;
| | - Fatin Nabilah Mohd Faudzi
- Institute of Advanced Technology, Universiti Putra Malaysia, Serdang 43400, Selangor, Malaysia; (U.Z.M.A.); (J.A.); (S.A.A.A.); (F.N.M.F.)
| | - Sachin K. Khiste
- Department of Medicine, Harvard Medical School, Boston, MA 02115, USA;
| | - Hamad A. Al-Lohedan
- Department of Chemistry, College of Science, King Saud University, P.O. Box 2455, Riyadh 11451, Saudi Arabia;
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Bodkhe GA, Hedau BS, Deshmukh MA, Patil HK, Shirsat SM, Phase DM, Pandey KK, Shirsat MD. Detection of Pb(II): Au Nanoparticle Incorporated CuBTC MOFs. Front Chem 2020; 8:803. [PMID: 33195028 PMCID: PMC7593771 DOI: 10.3389/fchem.2020.00803] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Accepted: 07/30/2020] [Indexed: 12/02/2022] Open
Abstract
In the present investigation, copper benzene tricarboxylate metal organic frameworks (CuBTC MOF) and Au nanoparticle incorporated CuBTC MOF (Au@CuBTC) were synthesized by the conventional solvothermal method in a round bottom flask at 105°C and kept in an oil bath. The synthesized CuBTC MOF and Au@CuBTC MOFs were characterized by structure using X-ray diffraction (XRD) spectroscopic methods including Fourier Transform Infrared spectroscopy, Raman Spectroscopy, X-ray Photoelectron Spectroscopy (XPS), and Energy dispersive spectroscopy (EDS). We also characterized them using morphological techniques such as Field emission scanning electron microscopy (FE-SEM), and electrochemical approaches that included cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). We examined thermal stability by thermogravimetric analysis (TG/DTA) and N2 adsorption—desorption isotherm by Brunauer-Emmett-Teller (BET) surface area method. Both materials were tested for the detection of lead (II) ions in aqueous media. Au nanoparticle incorporated CuBTC MOF showed great affinity and selectivity toward Pb2+ ions and achieved a lower detection limit (LOD) of 1 nM/L by differential pulse voltammetry (DPV) technique, which is far below than MCL for Pb2+ ions (0.03 μM/L) suggested by the United States (U.S.) Environmental Protection Agency (EPA) drinking water regulations.
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Affiliation(s)
- Gajanan A Bodkhe
- RUSA Center for Advanced Sensor Technology, Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, India
| | - Bhavna S Hedau
- RUSA Center for Advanced Sensor Technology, Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, India
| | - Megha A Deshmukh
- RUSA Center for Advanced Sensor Technology, Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, India
| | - Harshada K Patil
- RUSA Center for Advanced Sensor Technology, Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, India
| | - Sumedh M Shirsat
- Department of Electronics and Telecommunication Engineering, Jawaharlal Nehru Engineering College, Aurangabad, India
| | - Devdatta M Phase
- UGC-DAE Consortium for Scientific Research, University Campus, Indore, India
| | - Krishan K Pandey
- High Pressure and Synchrotron Radiation Physics Division, Bhabha Atomic Research Center, Mumbai, India
| | - Mahendra D Shirsat
- RUSA Center for Advanced Sensor Technology, Department of Physics, Dr. Babasaheb Ambedkar Marathwada University, Aurangabad, India
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Bohari NA, Siddiquee S, Saallah S, Misson M, Arshad SE. Optimization and Analytical Behavior of Electrochemical Sensors Based on the Modification of Indium Tin Oxide (ITO) Using PANI/MWCNTs/AuNPs for Mercury Detection. Sensors (Basel) 2020; 20:E6502. [PMID: 33202533 PMCID: PMC7697812 DOI: 10.3390/s20226502] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2020] [Revised: 10/27/2020] [Accepted: 10/29/2020] [Indexed: 02/07/2023]
Abstract
In the present study, indium tin oxide (ITO) was used as a transparent working electrode for the development of an electrochemical sensor for the detection of mercury (II) ions (Hg2+). The electrode was modified by direct electrodeposition of polyaniline (PANI), multiwalled carbon nanotubes (MWCNTs) and gold nanoparticles (AuNPs) followed by optimization of the analyte and operating conditions, aiming to improve the selectivity, sensitivity and reliability of the electrode for mercury detection. Successful immobilization of the PANI and nanomaterials (MWCNTs and AuNPs) on the ITO electrode was confirmed by Scanning Electron Microscope (SEM), Energy Dispersive X-ray (EDX) and Fourier Transform Infrared Spectroscopy (FTIR) analyses. The optimum conditions for mercury detection using the modified ITO electrode were pH 7.0 of Tris-HCl buffer (50 mM) in the presence of 1 mM methylene blue (MB) as a redox indicator, a scan rate of 0.10 V·s-1 and a 70 s interaction time. The electrochemical behavior of the modified electrode under the optimized conditions indicated a high reproducibility and high sensitivity of mercury detection. It is therefore suggested that the PANI/MWCNT/AuNP-modified ITO electrode could be a promising material for the development of on-site mercury detection tools for applications in fields such as diagnostics, the environment, safety and security controls or other industries.
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Affiliation(s)
- Noor Aini Bohari
- Biotechnology Research Institute, University Malaysia Sabah, Jalan UMS, Kota Kinabalu 88400, Sabah, Malaysia; (N.A.B.); (S.S.); (M.M.)
| | - Shafiquzzaman Siddiquee
- Biotechnology Research Institute, University Malaysia Sabah, Jalan UMS, Kota Kinabalu 88400, Sabah, Malaysia; (N.A.B.); (S.S.); (M.M.)
| | - Suryani Saallah
- Biotechnology Research Institute, University Malaysia Sabah, Jalan UMS, Kota Kinabalu 88400, Sabah, Malaysia; (N.A.B.); (S.S.); (M.M.)
| | - Mailin Misson
- Biotechnology Research Institute, University Malaysia Sabah, Jalan UMS, Kota Kinabalu 88400, Sabah, Malaysia; (N.A.B.); (S.S.); (M.M.)
| | - Sazmal Effendi Arshad
- Faculty of Science and Natural Resources, University Malaysia Sabah, Jalan UMS, Kota Kinabalu 88400, Sabah, Malaysia;
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Kalasin S, Sangnuang P, Khownarumit P, Tang IM, Surareungchai W. Evidence of Cu(I) Coupling with Creatinine Using Cuprous Nanoparticles Encapsulated with Polyacrylic Acid Gel-Cu(II) in Facilitating the Determination of Advanced Kidney Dysfunctions. ACS Biomater Sci Eng 2020; 6:1247-1258. [PMID: 33464870 DOI: 10.1021/acsbiomaterials.9b01664] [Citation(s) in RCA: 17] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
An electrochemical-based sensor created for creatinine detection has been developed for early point-of-care (POC) of diagnosis of renal illnesses. Useful information for the preventive diagnosis and clinical treatments of congenital disorders of creatinine mechanism, advanced liver and kidney diseases, and renal dysfunction can be obtained by the noninvasive evaluation of the creatinine levels in urine. The direct detection of creatinine can be achieved using the modified nanocomposite of cuprous nanoparticles encapsulated by polyacrylic acid (PAA) gel-Cu(II) fabricating on a screen-printed carbon electrode. Here, we report that the degree of kidney dysfunction failure can be determined by an amount of Cu(I) bound with the creatinine through the adsorptive mechanism on the modified electrode. Under cyclic voltammetry scans, the amount of creatinine was measured from the adsorptive signals of the redox peak current identifying the Cu(I)-creatinine complex with a natural logarithm of the creatinine concentration ranging from 200 μM to 100 mM. For this detection range, the theoretical calculation was postulated to describe experimental behaviors of the adsorptive mechanism as creatinine diffused to adsorb on the composite-modified electrode to reduce oxidized copper nanoparticles and transformed to Cu(II)-creatinine complexes. Interestingly, there was evidence that anodic peak potentials had been reduced in magnitudes and shifted negatively by natural logarithm during the formation of the Cu(I)-creatinine complex. For practical usage in POC technology, the creatinine detection in interference was carried out using differential pulse voltammetry to solely determine faradaic currents of creatinine-copper formation. With the interference of urea, glucose, ascorbic acid, glycine, and uric acid in artificial urine, the sensor showed promising results of the interference-free determination with 99.4% sensitivity efficiency, whereas for human urine interference, this sensor showed 85% sensitivity efficiency in detecting creatinine. This shows that this composite-modified sensor (PAA gel-Cu(II)/Cu2O NPs) has great potential for use in the next-generation devices for creatinine sensing to determine the progression in kidney dysfunctions.
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Affiliation(s)
- Surachate Kalasin
- Faculty of Science and Nanoscience & Nanotechnology Graduate Program, King Mongkut's University of Technology Thonburi, Bangkok 10140, Thailand
| | - Pantawan Sangnuang
- Pilot Plant Research and Development Laboratory, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand
| | - Porntip Khownarumit
- Pilot Plant Research and Development Laboratory, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand
| | - I Ming Tang
- Computation and Applied Science for Smart Innovation Cluster (CLASSIC), Faculty of Science, King Mongkut's University of Technology Thonburi, Bangkok 10140, Thailand
| | - Werasak Surareungchai
- Faculty of Science and Nanoscience & Nanotechnology Graduate Program, King Mongkut's University of Technology Thonburi, Bangkok 10140, Thailand.,School of Bioresource and Technology, King Mongkut's University of Technology Thonburi, Bangkok 10150, Thailand
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Ahirwar R, Dalal A, Sharma JG, Yadav BK, Nahar P, Kumar A, Kumar S. An aptasensor for rapid and sensitive detection of estrogen receptor alpha in human breast cancer. Biotechnol Bioeng 2018; 116:227-233. [PMID: 30132794 DOI: 10.1002/bit.26819] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 08/01/2018] [Accepted: 08/14/2018] [Indexed: 01/10/2023]
Abstract
The analysis of estrogen receptor (ER) expression in breast carcinomas plays a crucial role in determining the endocrine responsiveness of tumors for systemic adjuvant therapy. Conventionally, the ER levels in breast carcinomas had been detected using the dextran-coated charcoal assay and radioimmunoassay, which are now substituted with safer and economic antibody-based assays such as immunohistochemistry (IHC) and enzyme-linked immunosorbent assay (ELISA). Despite a gold (Au) standard method, the IHC has been criticized for factors such as tissue fixation, antibody selection, and threshold staining for result interpretation that could falsify test accuracy and reproducibility. The quest for alternative methods of ER quantification in tissue samples paved the way for aptamer-based diagnostics. Previously, we have isolated a DNA aptamer against human ER alpha (ERα) using an in vitro evolution system. In this study, we developed an electrochemical sensor using the 76-nucleotide DNA ERα- aptamer for rapid, precise, and cost-effective detection of ERα expression in human breast cancer patients. The aptasensor was constructed by covalently immobilizing the thiolated ERα- aptamer onto a screen-printed Au electrode. Construction of aptasensors was confirmed through atomic force microscopy and differential pulse voltammetry measurements. A detection limit of 0.001 ng/ml was calculated for full-length ERα (66.2 kDa) in a detection time of 10 min. Analysis of the cancerous breast tissue samples using the ELISA and aptasensor methods enabled distinctive classification of samples into the categories of ER -ve, weak ER +ve, and strong ER +ve samples. The current change of this aptasensor lies within 5% after a storage of 60 days at 4°C. Further studies on a reasonably large sample size are required to realize the clinical potential of the sensor.
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Affiliation(s)
- Rajesh Ahirwar
- Department of Biochemistry, ICMR-National Institute for Research in Environmental Health, Bhopal, India
| | - Anita Dalal
- Department of Biotechnology, Deenbandhu Chhotu Ram University of Science and Technology, Sonipat, India
| | - Jai G Sharma
- Department of Biotechnology, Delhi Technological University, Delhi, India
| | - Birendra K Yadav
- Department of Research, Rajiv Gandhi Cancer Institute and Research Centre, Rohini, New Delhi, India.,Biobank Manager, National Liver Disease Biobank, Institute of Liver and Billary Sciences, Delhi, India
| | - Pradip Nahar
- Department of Chemical and Systems Biology, CSIR-Institute of Genomics and Integrative Biology, Delhi, India
| | - Ashok Kumar
- Department of Chemical and Systems Biology, CSIR-Institute of Genomics and Integrative Biology, Delhi, India
| | - Saroj Kumar
- Department of Biotechnology, Delhi Technological University, Delhi, India
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