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Yan Y, Liu Z, Pang W, Huang S, Deng M, Yao J, Huang Q, Jin M, Shui L. Integrated biosensor array for multiplex biomarkers cancer diagnosis via in-situ self-assembly carbon nanotubes with an ordered inverse-opal structure. Biosens Bioelectron 2024; 262:116528. [PMID: 38943855 DOI: 10.1016/j.bios.2024.116528] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Revised: 05/31/2024] [Accepted: 06/24/2024] [Indexed: 07/01/2024]
Abstract
To enhance the precision and reliability of early disease detection, especially in malignancies, an exhaustive investigation of multi-target biomarkers is essential. In this study, an advanced integrated electrochemical biosensor array that demonstrates exceptional performance was constructed. This biosensor was developed through a controllable porous-size mechanism and in-situ modification of carbon nanotubes (CNTs) to quantify multiplex biomarkers-specifically, C-reaction protein (CRP), carbohydrate antigen 125 (CA125), and carcinoembryonic antigen (CEA)-in human serum plasma. The fabrication process involved creating a highly ordered three-dimensional inverse-opal structure with the CNTs (pCNTs) modifier through microdroplet-based microfluidics, confined spatial self-assembly of nanoparticles, and chemical wet-etching. This innovative approach allowed for direct in-situ modification of nanomaterial onto the surface of electrode array, eliminating secondary transfer and providing exceptional control over structure and stability. The outstanding electrochemical performance was achieved through the synergistic effect of the pCNTs nanomaterial, aptamer, and horseradish peroxidase-labeled (HRP-) antibody. Additionally, the integrated biosensor array platform comprised multiple individually addressable electrode units (n = 11), enabling simultaneous multi-parallel/target testing, thereby ensuring accuracy and high throughput. Crucially, this integrated biosensor array accurately quantified multiplex biomarkers in human serum, yielding results comparable to commercial methods. This integrated technology holds promise for point-of-care testing (POCT) in early disease diagnosis and biological analysis.
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Affiliation(s)
- Yu Yan
- Joint Laboratory of Optofluidic Technology and System, National Center for International Research on Green Optoelectronics, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, PR China
| | - Zhenping Liu
- Joint Laboratory of Optofluidic Technology and System, National Center for International Research on Green Optoelectronics, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, PR China.
| | - Wenbin Pang
- Joint Laboratory of Optofluidic Technology and System, National Center for International Research on Green Optoelectronics, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, PR China
| | - Shijian Huang
- Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou, 510006, PR China
| | - Mengxin Deng
- Joint Laboratory of Optofluidic Technology and System, National Center for International Research on Green Optoelectronics, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, PR China
| | - Jiyuan Yao
- Joint Laboratory of Optofluidic Technology and System, National Center for International Research on Green Optoelectronics, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, PR China
| | - Qiuju Huang
- Guangxi Key Laboratory of Bioactive Molecules Research and Evaluation, College of Pharmacy, Guangxi Medical University, Nanning, 530021, PR China.
| | - Mingliang Jin
- Joint Laboratory of Optofluidic Technology and System, National Center for International Research on Green Optoelectronics, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, PR China; International Academy of Optoelectronics at Zhaoqing, South China Normal University, Zhaoqing, 526238, PR China
| | - Lingling Shui
- Joint Laboratory of Optofluidic Technology and System, National Center for International Research on Green Optoelectronics, South China Academy of Advanced Optoelectronics, South China Normal University, Guangzhou, 510006, PR China; Guangdong Provincial Key Laboratory of Nanophotonic Functional Materials and Devices, School of Information and Optoelectronic Science and Engineering, South China Normal University, Guangzhou, 510006, PR China.
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2
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Li W, Sun Z, Che X, Ma Y, Guo Y, Chen G, Zhu X, Feng C. Liquid-colloid-solid modular assembly for three-dimensional electrochemical biosensing of small molecules. Biosens Bioelectron 2024; 259:116396. [PMID: 38772247 DOI: 10.1016/j.bios.2024.116396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2024] [Revised: 05/13/2024] [Accepted: 05/14/2024] [Indexed: 05/23/2024]
Abstract
Electrochemical biosensors hold promise for advanced analytical applications in modern life analysis due to their miniaturization and cost-effectiveness. Nevertheless, their implementation in complex biological systems necessitates overcoming challenges related to timeliness, sensitivity, and interference resistance. Here, we developed a novel DNA hydrogel three-dimensional electron transporter through liquid-colloid-solid assembly, integrating electronic mediators and employing porous electrode covers with 3D printing technology. Our approach facilitated the fabrication of a high-performance electrochemical sensor for small molecule detection, leveraging target-specific aptamers and catalytic hairpin assembly (CHA) elements within the DNA hydrogel, which exhibited outstanding selectivity, sensitivity, and universality, achieving detection limits of 0.047 nM for kanamycin and 2.67 pM for ATP. Furthermore, this sensor could detect kanamycin in real samples, demonstrating good accuracy and robust anti-interference capabilities in human serum. Our work not only possesses substantial application value in clinical sample analysis but also represents a breakthrough in traditional strategies, thereby contributing to advancements in the application of electrochemical biosensors for life analysis.
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Affiliation(s)
- Wenxing Li
- Department of Clinical Laboratory Medicine, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, PR China
| | - Zijiu Sun
- Department of Clinical Laboratory Medicine, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, PR China
| | - Xinran Che
- Center for Molecular Recognition and Biosensing, Shanghai Engineering Research Center of Organ Repair, School of Life Sciences, Shanghai University, Shanghai, 200444, PR China
| | - Yonggeng Ma
- Center for Molecular Recognition and Biosensing, Shanghai Engineering Research Center of Organ Repair, School of Life Sciences, Shanghai University, Shanghai, 200444, PR China
| | - Yi Guo
- Center for Molecular Recognition and Biosensing, Shanghai Engineering Research Center of Organ Repair, School of Life Sciences, Shanghai University, Shanghai, 200444, PR China
| | - Guifang Chen
- Center for Molecular Recognition and Biosensing, Shanghai Engineering Research Center of Organ Repair, School of Life Sciences, Shanghai University, Shanghai, 200444, PR China.
| | - Xiaoli Zhu
- Department of Clinical Laboratory Medicine, Shanghai Tenth People's Hospital, School of Medicine, Tongji University, Shanghai, 200072, PR China.
| | - Chang Feng
- Center for Molecular Recognition and Biosensing, Shanghai Engineering Research Center of Organ Repair, School of Life Sciences, Shanghai University, Shanghai, 200444, PR China.
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3
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Hari Gupta G, Mohan K, Ghosh S, Sarath Babu S, Velyutham R, Kapusetti G. Label-Free detection of Poly-Cystic Ovarian Syndrome using a highly conductive 2-D rGO/MoS 2/PANI nanocomposite based immunosensor. Bioelectrochemistry 2024; 158:108681. [PMID: 38493574 DOI: 10.1016/j.bioelechem.2024.108681] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2024] [Revised: 03/11/2024] [Accepted: 03/13/2024] [Indexed: 03/19/2024]
Abstract
Polycystic ovarian syndrome (PCOS) is an endocrinal disorder characterized by multiple tiny cysts, amenorrhea, dysmenorrhea, hirsutism, and infertility. The current diagnostic tools comprise of expensive, time-consuming ultrasonography to serological test, which have low patient compliance. To address these limitations, we have developed a highly sensitive, cost effective and ultrafast immunosensor for the diagnosis of PCOS. Herein, we have fabricated a 2-D electro conductive composites of reduced Graphene oxide (rGO), Molybdenum disulfide (MoS2), and Polyaniline (PANI) as electrode material. Furthermore, for detecting an early and non-cyclic biomarker of PCOS, i.e. anti-Mullerian hormone (AMH). We utilize the specific antigen-antibody mechanism, in which monoclonal Anti-AMH antibodies were covalently immobilized using EDC-NHS chemistry on electrode. The developed biosensor was physicochemical and electrochemically characterized to demonstrate its efficiency. Further we have investigated the biosensor's performance with Cyclic Voltammetry, Differential Pulse Voltammetry, and Electrochemical Impedance Spectroscopy. We have validated that under the optimized condition the immunosensor exhibits higher sensitivity with a LOD of ∼ 2.0 ng/mL with a linear range up to 100 ng/mL. Furthermore, this immunosensor works efficiently with a lower sample volume (>5 μL), which provides a sensitive, reproducible, low-cost, rapid analysis to detect AMH level in PCOS diagnosis.
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Affiliation(s)
- Gourang Hari Gupta
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research (NIPER)- Ahmedabad, India
| | - Keerthana Mohan
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research (NIPER)- Ahmedabad, India
| | - Sumanta Ghosh
- Department of Medical Devices, National Institute of Pharmaceutical Education and Research (NIPER)- Ahmedabad, India
| | | | | | - Govinda Kapusetti
- National Institute of Pharmaceutical Education and Research (NIPER), Kolkata, India; Department of Medical Devices, National Institute of Pharmaceutical Education and Research (NIPER)- Ahmedabad, India.
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4
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Alsoghier HM, Abd-Elsabour M, Alhamzani AG, Abou-Krisha MM, Assaf HF. Real samples sensitive dopamine sensor based on poly 1,3-benzothiazol-2-yl((4-carboxlicphenyl)hydrazono)acetonitrile on a glassy carbon electrode. Sci Rep 2024; 14:16601. [PMID: 39025924 PMCID: PMC11258363 DOI: 10.1038/s41598-024-65192-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2024] [Accepted: 06/18/2024] [Indexed: 07/20/2024] Open
Abstract
Herein, a novel electrochemical sensor that was used for the first time for sensitive and selective detection of dopamine (DA) was fabricated. The new sensor is based on the decoration of the glassy carbon electrode surface (GC) with a polymer film of 1,3-Benzothiazol-2-yl((4-carboxlicphenyl)hydrazono)) acetonitrile (poly(BTCA). The prepared (poly(BTCA) was examined by using different techniques such as 1H NMR, 13C NMR, FTIR, and UV-visible spectroscopy. The electrochemical investigations of DA were assessed using cyclic voltammetry (CV) and differential pulse voltammetry (DPV). The results obtained showed that the modifier increased the electrocatalytic efficiency with a noticeable increase in the oxidation peak current of DA in 0.1 M phosphate buffer solution (PBS) at an optimum pH of 7.0 and scan rate of 200 mV/s when compared to unmodified GC. The new sensor displays a good performance for detecting DA with a limit of detection (LOD 3σ), and limit of quantification (LOQ 10σ) are 0.28 nM and 94 nM respectively. The peak current of DA is linearly proportional to the concentration in the range from 0.1 to 10.0 µM. Additionally, the fabricated electrode showed sufficient reproducibility, stability, and selectivity for DA detection in the presence of different interferents. The proposed poly(BTCA)/GCE sensor was effectively applied to detect DA in the biological samples.
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Affiliation(s)
- Hesham M Alsoghier
- Chemistry Department, Faculty of Science, South Valley University, Qena, 83523, Egypt.
| | - Mohamed Abd-Elsabour
- Chemistry Department, Faculty of Science, Luxor University, Luxor, 85951, Egypt.
| | - Abdulrahman G Alhamzani
- Chemistry Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), 11623, Riyadh, Saudi Arabia
| | - Mortaga M Abou-Krisha
- Chemistry Department, Faculty of Science, South Valley University, Qena, 83523, Egypt
- Chemistry Department, College of Science, Imam Mohammad Ibn Saud Islamic University (IMSIU), 11623, Riyadh, Saudi Arabia
| | - Hytham F Assaf
- Chemistry Department, Faculty of Science, South Valley University, Qena, 83523, Egypt
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5
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Cai C, Hao L, Wang R, Su M, Wang H, Zhang Y. Oatmeal-derived carbon loaded with Pt nanoparticles using a "two-fold benefit approach" for sensitive detection of the biomolecule adrenaline. J Colloid Interface Sci 2024; 675:84-93. [PMID: 38964127 DOI: 10.1016/j.jcis.2024.07.003] [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: 05/24/2024] [Revised: 06/22/2024] [Accepted: 07/01/2024] [Indexed: 07/06/2024]
Abstract
In this study, we innovatively synthesized nitrogen-doped carbon microspheres (NCS) derived from oatmeal. By utilizing polyoxometalates (POM) as both reducing and linking agents, we achieved uniform loading of platinum nanoparticles (Pt NPs) onto the surface of the NCS. The composite nanoparticles constructed from Pt/polyoxometalate/nitrogen-doped carbon microspheres (Pt/POM/NCS) fully exploit the synergistic catalytic effect, demonstrating superior performance in adrenaline detection. The method has a linear range of 2.59 to 1109.59 μM, a detection limit as low as 0.25 μM (S/N = 3), and a sensitivity of 0.74 μA μM-1 cm-2. Additionally, it exhibits high stability and strong anti-interference ability. The recoveries in human serum were 98.51 % to 101.25 %.
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Affiliation(s)
- Chong Cai
- State Key Laboratory of New Pharmaceutical Preparations and Excipients, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, 071002 Baoding, PR China
| | - Lin Hao
- College of Science, Hebei Agricultural University, 071001 Baoding, PR China
| | - Runyan Wang
- State Key Laboratory of New Pharmaceutical Preparations and Excipients, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, 071002 Baoding, PR China
| | - Ming Su
- State Key Laboratory of New Pharmaceutical Preparations and Excipients, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, 071002 Baoding, PR China
| | - Huan Wang
- State Key Laboratory of New Pharmaceutical Preparations and Excipients, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, 071002 Baoding, PR China
| | - Yufan Zhang
- State Key Laboratory of New Pharmaceutical Preparations and Excipients, Key Laboratory of Medicinal Chemistry and Molecular Diagnosis of the Ministry of Education, Key Laboratory of Analytical Science and Technology of Hebei Province, College of Chemistry and Materials Science, Hebei University, 071002 Baoding, PR China.
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6
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Ayyandurai N, Venkatesan S, Raman S. A Sensitive Enzymatic Electrochemical Biosensor for Cholesterol Based on Cobalt Ferrite@Molybdenum Disulfide/Gold Nanoparticles. ACS APPLIED BIO MATERIALS 2024; 7:4080-4092. [PMID: 38771954 DOI: 10.1021/acsabm.4c00412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/23/2024]
Abstract
Cholesterol is essential in biological systems, and the level of cholesterol in the body of a person acts as a diagnostic marker for a variety of diseases. So, in this work, we fabricated an enzymatic electrochemical biosensor for cholesterol using cobalt ferrite@molybdenum disulfide/gold nanoparticles (CoFe2O4@MoS2/Au). The synthesized composite was used for the determination of cholesterol by voltametric methods. The electroactive material CoFe2O4@MoS2/Au was successfully verified from the physiochemical studies such as XRD, Raman, FT-IR, and XPS spectroscopy along with morphological FESEM and HRTEM characterization. CoFe2O4@MoS2/Au showed outstanding dispersion in the aqueous phase, a large effective area, good biological compatibility, and superior electronic conductivity. The microflower-like CoFe2O4@MoS2/Au was confirmed by scanning electron microscopy. The image of transmission electron microscopy showed decoration of gold nanoparticles on CoFe2O4@MoS2 surfaces. Furthermore, a one-step dip-coating technique was used to build the biosensor used for cholesterol detection. In addition to acting as an enabling matrix to immobilize cholesterol oxidase (ChOx), CoFe2O4@MoS2/Au contributes to an increase in electrical conductivity. The differential pulse voltammetry method was used for the quantitative measurement of cholesterol. The calibration curve for cholesterol was linear in the concentration range of 5 to 100 μM, with a low limit of detection of 0.09 μM and sensitivity of 0.194 μA μM-1 cm-2. Furthermore, the biosensor demonstrates good practicability, as it was also employed for identifying cholesterol in real samples with acceptable selectivity and stability.
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Affiliation(s)
- Nagarajan Ayyandurai
- Department of Physical Chemistry, University of Madras, Guindy Campus, Chennai 600025, Tamil Nadu, India
| | - Sethuraman Venkatesan
- Research and Development, New Energy Technology Centre, Lithium-Ion Division, Amara Raja Battery Ltd., Karakambadi 517520, Tirupati, Andhra Pradesh, India
| | - Sasikumar Raman
- Department of Physical Chemistry, University of Madras, Guindy Campus, Chennai 600025, Tamil Nadu, India
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7
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Abbas EE, Fayed AS, Hegazy MA, Salama NN, Mohamed MA. Toward an Improved Electrocatalytic Determination of Immunomodulator COVID Medication Baricitinib Using Multiwalled Carbon Nanotube Nickel Hybrid. ACS APPLIED BIO MATERIALS 2024; 7:3865-3876. [PMID: 38780243 DOI: 10.1021/acsabm.4c00233] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/25/2024]
Abstract
The study presents a first electrochemical method for the determination of the immunomodulator drug Baricitinib (BARI), crucial in managing COVID-19 patients requiring oxygen support. A unique electrode was developed by modifying graphite carbon nickel nanoparticles (NiNPs) with functionalized multiwalled carbon nanotubes (f.MWCNTs), resulting in nanohybrids tailored for highly sensitive BARI detection. Comparative analysis revealed the superior electrocatalytic performance of the nanohybrid-modified electrode over unmodified counterparts and other modifications, attributed to synergistic interactions between f.MWCNTs and nickel nanoparticles. Under optimized conditions, the sensors exhibited linear detection within a concentration range from 4.00 × 10-8 to 5.56 × 10-5 M, with a remarkably low detection limit of 9.65 × 10-9 M. Notably, the modified electrode displayed minimal interference from common substances and demonstrated high precision in detecting BARI in plasma and medicinal formulations, underscoring its clinical relevance and potential impact on COVID-19 treatment strategies.
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Affiliation(s)
- Enas E Abbas
- Pharmaceutical Chemistry Department, Egyptian Drug Authority, Giza 12512, Egypt
| | - Ahmed S Fayed
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr Elaini St., P.O. Box 11562 Cairo, Egypt
| | - Maha A Hegazy
- Analytical Chemistry Department, Faculty of Pharmacy, Cairo University, Kasr Elaini St., P.O. Box 11562 Cairo, Egypt
| | - Nahla N Salama
- Pharmaceutical Chemistry Department, Egyptian Drug Authority, Giza 12512, Egypt
| | - Mona A Mohamed
- Pharmaceutical Chemistry Department, Egyptian Drug Authority, Giza 12512, Egypt
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8
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Archana, Kumar A, Solanki PR. 4-Ethylphenyl Sulfate Detection by an Electrochemical Sensor Based on a MoS 2 Nanosheet-Modified Molecularly Imprinted Biopolymer. ACS APPLIED BIO MATERIALS 2024; 7:3841-3853. [PMID: 38836520 DOI: 10.1021/acsabm.4c00227] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/06/2024]
Abstract
One of the gut-derived uremic toxins 4-ethylphenyl sulfate (4-EPS) exhibits significantly elevated plasma levels in chronic kidney diseases and autism, and its early quantification in bodily fluids is important. Therefore, the development of rapid and sensitive technologies for 4-EPS detection is of significant importance for clinical diagnosis. In the current work, the synthesis of a molecularly imprinted biopolymer (MIBP) carrying 4-EPS specific cavities only using the biopolymer polydopamine (PDA) and molybdenum disulfide (MoS2) nanosheets has been reported. The fabricated electrode was prepared using screen-printed carbon electrodes on a polyvinyl chloride substrate. The synthesized material was characterized using several techniques, and electrochemical studies were performed using cyclic voltammetry (CV) and differential pulse voltammetry (DPV) techniques. The DPV technique for the electrochemical sensing of 4-EPS using the fabricated sensor (PDA@MoS2-MIBP) determined a sensitivity of 0.012 μA/ng mL/cm2 and a limit of detection of 30 ng/mL in a broad linear range of 1-2200 ng/mL. Also, the interferent study was performed to evaluate the selectivity of the fabricated sensor along with the control and stability study. Moreover, the performance of the sensor was evaluated in the spiked urine sample, and a comparison was made with the data obtained by ultraperformance liquid chromatography-tandem mass spectroscopy.
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Affiliation(s)
- Archana
- Special Centre for Nanoscience, Jawaharlal Nehru University, New Delhi 110067, India
| | - Anil Kumar
- National Institute of Immunology, New Delhi 110067, India
| | - Pratima R Solanki
- Special Centre for Nanoscience, Jawaharlal Nehru University, New Delhi 110067, India
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9
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Ganesh PS, Eluwale Elugoke S, Kim SY, Kaya S, Ebenso EE. Role of electron transfer between bare electrode and benzoguanamine to fabricate an electrochemical sensor for drugs: Theoretical and electrochemical approach. Microchem J 2024; 201:110731. [DOI: 10.1016/j.microc.2024.110731] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 07/23/2024]
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10
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Subak H, Talay Pınar P. Electrochemical Behavior of Janus Kinase Inhibitor Ruxolitinib at a Taurine-Electropolymerized Carbon Paste Electrode: Insights into Sensing Mechanisms. ACS APPLIED BIO MATERIALS 2024; 7:3179-3189. [PMID: 38581305 PMCID: PMC11110052 DOI: 10.1021/acsabm.4c00186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2024] [Revised: 03/24/2024] [Accepted: 03/25/2024] [Indexed: 04/08/2024]
Abstract
Ruxolitinib (RXL) is a Janus kinase inhibitor used for treating intermediate- or high-risk myelofibrosis. This study presents an electrode modified with electrochemically polymerized taurine on a carbon paste electrode via cyclic voltammetry (CV). The surface characterization of the poly(taurine)-CP electrode was evaluated by using electrochemical (electrochemical impedance spectroscopy─EIS, CV), morphological (scanning electron microscope─SEM), and spectroscopic (Fourier-transform infrared spectroscopy─FT-IR) techniques. Under optimized conditions, RXL exhibited good linearity within the 0.01-1.0 μM concentration range, with a limit of detection (LOD) of 0.005 μM. The proposed electrochemical sensor demonstrated excellent selectivity, accuracy, precision, and repeatability. Furthermore, it effectively detected RXL in human urine and pharmaceutical samples.
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Affiliation(s)
- Hasret Subak
- Department of Analytical
Chemistry, Faculty of Pharmacy, Van Yuzuncü
Yil University, Zeve Campus, 65080 Van, Turkey
| | - Pınar Talay Pınar
- Department of Analytical
Chemistry, Faculty of Pharmacy, Van Yuzuncü
Yil University, Zeve Campus, 65080 Van, Turkey
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11
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Bhimaraya K, Manjunatha JG, Nagarajappa H, Tighezza AM, Albaqami MD, Sillanpää M. Development of a sensitive and inexpensive electrochemical sensor for indigotin using poly(valine) modified carbon paste electrode. Heliyon 2023; 9:e20937. [PMID: 37928007 PMCID: PMC10623149 DOI: 10.1016/j.heliyon.2023.e20937] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2023] [Revised: 09/22/2023] [Accepted: 10/11/2023] [Indexed: 11/07/2023] Open
Abstract
In this study, an electro-polymerized valine (VLN) stimulated carbon paste electrode (CPE) was used to create a straightforward, inexpensive, and renewable electrochemical sensor for accurate and selective indigotin (IGN) determination. Comparing the CPE, to the modified electrode, it exhibits excellent sensibility for the IGN oxidation-reduction reaction. Multiple techniques, including cyclic voltammetry (CV), differential pulse voltammetry (DPV), electrochemical impedance spectroscopy (EIS), and scanning electron microscopy (SEM) were utilized in this case to characterize the electrode materials. IGN was analyzed using CPE and poly(valine) modified carbon paste electrodes (P(VLN)MCPE) taking a 6.5 pH in 0.2 M phosphate buffer solution (PBS). Because it has more active spots than the CPE and a strong electrocatalytic nature, P(VLN)MCPE exhibits excellent electrochemical performance. The impact of pH, scan rate, numerous interferents, and fluctuation in analyte concentration were only a few of the important electrochemical factors that were investigated. The variation in scan rate proves that the IGN oxidation-reduction reaction on the surface of P(VLN)MCPE is as follows an adsorption-controlled pathway. The P(VLN)MCPE displays a good electrochemical nature for IGN in the 0.2 to 5.0 μM range, with a low limit of detection (LOD) is 0.0069 μM and a limit of quantification (LOQ) is 0.023 μM. P(VLN)MCPE shows good reproducibility, stability, and repeatability for the detection of IGN. Additionally, P(VLN)MCPE's analytical applicability for IGN detection in water sample was assessed with impressive recovery.
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Affiliation(s)
- Kanthappa Bhimaraya
- Department of Chemistry FMKMC, College, Madikeri, Mangalore University Constituent College, Karnataka, 571201, India
| | - Jamballi G. Manjunatha
- Department of Chemistry FMKMC, College, Madikeri, Mangalore University Constituent College, Karnataka, 571201, India
| | - Hareesha Nagarajappa
- Department of Chemistry FMKMC, College, Madikeri, Mangalore University Constituent College, Karnataka, 571201, India
| | - Ammar M. Tighezza
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Munirah D. Albaqami
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mika Sillanpää
- Department of Biological and Chemical Engineering, Aarhus University, Norrebrogade 44, 8000 Aarhus C, Denmark
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12
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Sukanya SD, Swamy BEK, Shashikumara JK, Sharma SC, Hariprasad SA. A novel, extreme low-cost poly (Erythrosine) modified pencil graphite electrode for determination of Adrenaline. Sci Rep 2023; 13:4523. [PMID: 36941302 PMCID: PMC10027675 DOI: 10.1038/s41598-023-31068-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2022] [Accepted: 03/06/2023] [Indexed: 03/23/2023] Open
Abstract
A simple, novel, and less cost yellow (Erythrosine) modified pencil graphite electrode (Po-ERY/MGPE) was successfully fabricated via electropolymerization method using cyclic voltammetric techniques. The fabricated Po-ERY/MGPE opted as a sensor for the detection of Adrenaline (ADR) in 0.2 M PBS (7.4 pH). This reported senor displayed excellent electrocatalytic activity, increased sensitivity, high stability, superior electron transfer kinetics in the oxidation of ADR once relative to BGPE. The significance of pH, scan rate, and impact of concentration was assessed at the sensor. As per the pH and scan rate study, redox routes carry the same number of electrons and protons, and electro-oxidation of ADR was adsorption controlled respectively. The LOD of ADR was found to be 0.499 µM. The DPV data indicate that there is a significant peak divergence among ADR and uric acid (UA) which could make it easier to determine them alone and simultaneously on the sensor. The described method has been employed for the determination of ADR in injection sample. Good recovery values indicate the efficacy and applicability of the sensor in detecting ADR.
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Affiliation(s)
- S D Sukanya
- Department of P.G. Studies and Research in Analytical Chemistry, Alva's College, Moodubidire, Dakshina Kannada, Karnataka, 574227, India
| | - B E Kumara Swamy
- Department of P.G. Studies and Research in Industrial Chemistry, Kuvempu University, Jnana Sahyadri, Shankaraghatta, Shivmoga, Karnataka, 577451, India.
| | - J K Shashikumara
- Department of P.G. Studies and Research in Industrial Chemistry, Kuvempu University, Jnana Sahyadri, Shankaraghatta, Shivmoga, Karnataka, 577451, India
| | - S C Sharma
- National Assessment and Accreditation Council (Work Carried Out as Honorary Professor), Jain University, Bangalore, Karnataka, 560 069, India.
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Hareesha N, Manjunatha J, Tighezza AM, Albaqami MD, Sillanpää M. Electrochemical detection and quantification of catechol based on a simple and sensitive poly(riboflavin) modified carbon nanotube paste electrode. Heliyon 2023; 9:e14378. [PMID: 36942251 PMCID: PMC10023950 DOI: 10.1016/j.heliyon.2023.e14378] [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: 09/24/2022] [Revised: 03/02/2023] [Accepted: 03/03/2023] [Indexed: 03/09/2023] Open
Abstract
In the present research work, selective and sensitive catechol (CT) detection and quantification were shown in the presence of resorcinol (RS) in 0.2 M phosphate buffer (PB) solution by preparing a low-cost, simple, and green carbon nanotube paste electrode (CNTPE) surface activated with electropolymerized riboflavin (PRF). The morphological, conductivity, and electrochemical features of the modified electrode (PRFMCNTPE) and bare carbon nanotube paste electrode (BCNTPE) materials were analyzed using electrochemical impedance spectroscopy (EIS), field emission scanning electron microscopy (FE-SEM), cyclic voltammetry (CV), and differential pulse voltammetry (DPV). The PRF-activated electrode displays outstanding sensitivity, stability, selectivity, reproducibility, and repeatability for the redox feature of CT with improved electrochemical current and declined electrochemical potential compared to BCNTPE. The peak currents of CT are correlated to the different CT concentrations (CV method: 6.0-60.0 μM & DPV method: 0.5-7.0 μM), and the obtained detection limit (DL) and quantification limit (QL) are found to be 0.025 μM and 0.085 μM (CV method) and 0.0039 μM and 0.0132 μM (DPV method), respectively. The prepared PRFMCNTPE material was advantageous for the examination of CT in environmentally important tap water sample as a real-time application.
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Affiliation(s)
- N. Hareesha
- Department of Chemistry, FMKMC College, Constituent College of Mangalore University, Madikeri, Karnataka, India
| | - J.G. Manjunatha
- Department of Chemistry, FMKMC College, Constituent College of Mangalore University, Madikeri, Karnataka, India
- Corresponding author.
| | - Ammar M. Tighezza
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Munirah D. Albaqami
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mika Sillanpää
- Department of Biological and Chemical Engineering, Aarhus University, Norrebrogade 44, 8000 Aarhus C, Denmark
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Kanthappa B, Manjunatha JG, Hareesha N, Tighezza AM, Albaqami MD, Sillanpää M. Electrochemically Polymerized DL‐Phenylalanine‐Deposited Graphene Paste Electrode for the Detection of Rutin. ChemistrySelect 2023. [DOI: 10.1002/slct.202204147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Affiliation(s)
- B. Kanthappa
- Department of Chemistry FMKMC College Madikeri Mangalore University Constituent College 571201 Karnataka India
| | - J. G. Manjunatha
- Department of Chemistry FMKMC College Madikeri Mangalore University Constituent College 571201 Karnataka India
| | - N. Hareesha
- Department of Chemistry FMKMC College Madikeri Mangalore University Constituent College 571201 Karnataka India
| | - Ammar M. Tighezza
- Department of Chemistry College of Science King Saud University 11451 Riyadh Saudi Arabia
| | - Munirah D. Albaqami
- Department of Chemistry College of Science King Saud University 11451 Riyadh Saudi Arabia
| | - Mika Sillanpää
- Department of Biological and Chemical Engineering Aarhus University Norrebrogade 44 8000 Aarhus C Denmark
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Insights into the Design of An Enzyme Free Sustainable Sensing Platform for Efavirenz. Catalysts 2022. [DOI: 10.3390/catal12080830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
In this study, a new hybrid sensor was developed using titanium oxide nanoparticles (TiO2-NPs) and nafion as an anchor agent on a glassy carbon electrode (GCE/TiO2-NPs-nafion) to detect efavirenz (EFV), an anti-HIV medication. TiO2-NPs was synthesized using Eucalyptus globulus leaf extract and characterized using ultraviolet–visible spectroscopy (UV–VIS), scanning electron microscopy (SEM), X-ray diffraction (XRD), and energy-dispersive spectroscopy (EDS). The electrochemical and sensing properties of the developed sensor for EFV were assessed using cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS). The current response of GCE/TiO2-NPs-nafion electrode towards the oxidation of EFV was greater compared to the bare GCE and GCE/TiO2-NPs electrodes. A linear dynamic range of 4.5 to 18.7 µM with 0.01 µM limit of detection was recorded on the electrode using differential pulse voltammetry (DPV). The electrochemical sensor demonstrated good selectivity and practicality for detecting EFV in pharmaceuticals (EFV drugs) with excellent recovery rates, ranging from 92.0–103.9%. The reactive sites of EFV have been analyzed using quantum chemical calculations based on density functional theory (DFT). Monte Carlo (MC) simulations revealed a strong electrostatic interaction on the substrate-adsorbate (GCE/TiO2-NPs-nafion-EFV) system. Results show good agreement between the MC computed adsorption energies and the experimental CV results for EFV. The stronger adsorption energy of nafion onto the GCE/TiO2-NPs substrate contributed to the catalytic role in the signal amplification for sensing of EFV. Our results provide an effective way to explore the design of new 2D materials for sensing of EFV, which is highly significant in medicinal and materials chemistry.
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Nagarajappa H, Manjunatha JG, Al‐Kahtani AA, Tighezza AM, Ataollahi N. Electrochemical Determination of Riboflavin using a Poly(Titan Yellow) Modified Carbon Nanotube Paste Electrode in the Presence of Dopamine. ChemistrySelect 2022. [DOI: 10.1002/slct.202200537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Hareesha Nagarajappa
- Department of Chemistry FMKMC College Constituent College of Mangalore University, Madikeri Karnataka India
| | - Jamballi G. Manjunatha
- Department of Chemistry FMKMC College Constituent College of Mangalore University, Madikeri Karnataka India
| | - Abdullah A. Al‐Kahtani
- Chemistry Department College of Science King Saud University P. O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Ammar M. Tighezza
- Chemistry Department College of Science King Saud University P. O. Box 2455 Riyadh 11451 Saudi Arabia
| | - Narges Ataollahi
- Department of Civil Environmental and Mechanical Engineering University of Trento Via Mesiano, 77 38123 Trento Italy
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Simple and affordable graphene nano-platelets and carbon nanocomposite surface decorated with cetrimonium bromide as a highly responsive electrochemical sensor for rutin detection. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116388] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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18
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Tigari G, Manjunatha JG, Souza ED, Raril C, Hareesha N, Charithra MM. Electrochemical determination of levofloxacin drug at poly(clayton yellow)/carbon paste electrode. MONATSHEFTE FUR CHEMIE 2022. [DOI: 10.1007/s00706-022-02910-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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19
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Analysis of Staphylococcus aureus Molecules in Non-Treated Blood Using Mercury Immobilized Carbon Nanotube Sensor. Molecules 2022; 27:molecules27061837. [PMID: 35335199 PMCID: PMC8953576 DOI: 10.3390/molecules27061837] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2022] [Revised: 02/26/2022] [Accepted: 03/08/2022] [Indexed: 02/04/2023] Open
Abstract
Staphylococcus aureus bacteria is a ubiquitous Gram-positive microorganism that causes infections related to the sudden infant death syndrome. Recently, basic detection methods depend on complicated PCR amplification, electric separation, spectric adsorption and other detection systems. However, in this study, simplified sensitive voltammetric skills are developed. To identify an effective diagnostic method for Staphylococcus aureus (SA), a voltammetric sensing probe was sought using mercury immobilized on a carbon nanotube sensor (MCN). The voltammetric MCN conditions were optimized through stripping and cyclic voltammetry. Diagnostic electrolyte was used on non-treated blood sera as an electrolyte solution. The optimum cyclic and stripping analytical working range was 0.5–4.0 mL (3 × 102~5 × 102 CFU/0.5 mL) SA. The statistic relative standard deviation of 0.1 mL SA was observed to be 0.0078 (n = 5). Using the optimum parameters, a diagnostic test was performed by the direct assay of SA in non-treated human blood and patient sera. Here, the developed results can be used for the direct assay of non-treated blood sera, organ monitoring, in-vivo diagnosis, and other assays requiring SA detection.
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Ebube. Uwaya G, Wen Y, Bisetty K. A combined experimental-computational approach for electrocatalytic detection of epinephrine using nanocomposite sensor based on polyaniline/nickel oxide. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116204] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Pushpanjali PA, Manjunatha JG, Hareesha N, Girish T, Al-Kahtani AA, Tighezza AM, Ataollahi N. Electrocatalytic Determination of Hydroxychloroquine Using Sodium Dodecyl Sulphate Modified Carbon Nanotube Paste Electrode. Top Catal 2022:1-9. [PMID: 35075339 PMCID: PMC8769944 DOI: 10.1007/s11244-022-01568-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/31/2021] [Indexed: 12/19/2022]
Abstract
Selective, sensitive, easy, and fast voltammetric techniques were developed for the analysis of Hydroxychloroquine (HCQ). These analysis were carried out at sodium dodecyl sulphate modified carbon nanotube paste electrode (SDSMCNTPE) using an aqueous 0.2 M phosphate buffer solution as supporting electrolyte. The field emission-scanning electron microscopy, cyclic voltammetry (CV), and electrochemical impedance spectroscopy were used for material characterization. A minute quantity of the SDS surfactant was sufficient to convey an outstanding electrocatalytic action to the electrochemical oxidation nature of HCQ. The HCQ molecule parades only electrochemical oxidation (irreversible) with the transfer of two electrons. The detection of HCQ was carried out through CV method at SDSMCNTPE and bare carbon nanotube paste electrode (BCNTPE). The corresponding analytical curve offered a decent linear nature in the considered HCQ concentration range (10-40 µM) and the detection limit was found to be 0.85 µM. The significant peak to peak split-up was observed between HCQ and interferents with a decent sensitivity and stability. The SDSMCNTPE to be an approachable electrode for the usage in the examination of HCQ independently and in the presence of paracetamol (PC) and ascorbic acid (AA). Thus, they were used to determine HCQ in pharmaceutical formulations and the results that showed good agreement with comparative methods. Furthermore, a mechanism for HCQ electro-oxidation was proposed.
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Affiliation(s)
- P. A. Pushpanjali
- Department of Chemistry, FMKMC College, Constituent College of Mangalore University, Madikeri, Karnataka India
| | - J. G. Manjunatha
- Department of Chemistry, FMKMC College, Constituent College of Mangalore University, Madikeri, Karnataka India
| | - N. Hareesha
- Department of Chemistry, FMKMC College, Constituent College of Mangalore University, Madikeri, Karnataka India
| | - T. Girish
- Department of Chemistry, FMKMC College, Constituent College of Mangalore University, Madikeri, Karnataka India
| | - Abdullah A. Al-Kahtani
- Chemistry Department, College of Science, King Saud University, P. O. Box 2455, Riyadh, 11451 Saudi Arabia
| | - Ammar Mohamed Tighezza
- Chemistry Department, College of Science, King Saud University, P. O. Box 2455, Riyadh, 11451 Saudi Arabia
| | - Narges Ataollahi
- Department of Civil, Environmental and Mechanical Engineering, University of Trento, Via Mesiano, 77, 38123 Trento, Italy
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22
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Electrochemical sensing of antibiotic drug amoxicillin in the presence of dopamine at simple and selective carbon paste electrode activated with cetyltrimethylammonium bromide surfactant. MONATSHEFTE FUR CHEMIE 2021. [DOI: 10.1007/s00706-021-02870-z] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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23
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Sukanya SD, Swamy BEK, Shashikumara JK, Sharma SC, Hariprasad SA. Poly (Orange CD) sensor for paracetamol in presence of folic acid and dopamine. Sci Rep 2021; 11:22332. [PMID: 34785686 PMCID: PMC8595450 DOI: 10.1038/s41598-021-01311-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2021] [Accepted: 10/08/2021] [Indexed: 11/24/2022] Open
Abstract
In the present work, Orange CD was chosen as an intriguing modifier for the electropolymerization on the surface of CPE by the CV technique. A novel, sensitive, and cost-effective poly (Orange CD) MCPE (PoOCD/MCPE) sensor was utilized for the selective detection of paracetamol (PA) in 0.2 M phosphate buffer solution (PBS) of pH 7.4. The oxidation peak current of PA was vastly enhanced at the sensor. The scan rate study is suggested that electro-oxidation of PA was adsorption-controlled. The pH study testifies the redox pathways transport with the same quantity of electrons and protons. The detection limit of PA is found to be 2.64 µM. DPV results show that substantial peak separation between PA, folic acid (FA), and dopamine (DA) could be facilitating their individual and simultaneous determination on the sensor. The decorated sensor demonstrates high sensitivity, stability, reproducibility, repeatability and has been successfully exploited for the detection of PA in a tablet with promising results.
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Affiliation(s)
- S D Sukanya
- Department of P.G. Studies and Research in Industrial Chemistry, Kuvempu University, Jnana Sahyadri, Shankaraghatta, Shivamogga, Karnataka, 577451, India
| | - B E Kumara Swamy
- Department of P.G. Studies and Research in Industrial Chemistry, Kuvempu University, Jnana Sahyadri, Shankaraghatta, Shivamogga, Karnataka, 577451, India.
| | - J K Shashikumara
- Department of P.G. Studies and Research in Industrial Chemistry, Kuvempu University, Jnana Sahyadri, Shankaraghatta, Shivamogga, Karnataka, 577451, India
| | - S C Sharma
- National Assessment and Accreditation Council (Work Carried Out as Honorary Professor), Jain University, Bangalore, Karnataka, 560 069, India.
- School of Energy Science and Engineering, Indian Institute of Technology Guwahati, Guwahati, India.
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Varun DN, Manjunatha JG, Hareesha N, Sandeep S, Mallu P, Karthik CS, Prinith NS, Sreeharsha N, Asdaq SMB. Simple and sensitive electrochemical analysis of riboflavin at functionalized carbon nanofiber modified carbon nanotube sensor. MONATSHEFTE FUR CHEMIE 2021. [DOI: 10.1007/s00706-021-02839-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
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25
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Electro-Polymerized Titan Yellow Modified Carbon Paste Electrode for the Analysis of Curcumin. SURFACES 2021. [DOI: 10.3390/surfaces4030017] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
A modest, efficient, and sensitive chemically modified electrode was fabricated for sensing curcumin (CRC) through an electrochemically polymerized titan yellow (TY) modified carbon paste electrode (PTYMCPE) in phosphate buffer solution (pH 7.0). Cyclic voltammetry (CV) linear sweep voltammetry (LSV) and differential pulse voltammetry (DPV) approaches were used for CRC detection. PTYMCPE interaction with CRC suggests that the electrode exhibits admirable electrochemical response as compared to bare carbon paste electrode (BCPE). Under the optimized circumstances, a linear response of the electrode was observed for CRC in the concentration range 2 × 10−6 M to 10 × 10−6 M with a limit of detection (LOD) of 10.94 × 10−7 M. Moreover, the effort explains that the PTYMCPE electrode has a hopeful approach for the electrochemical resolution of biologically significant compounds. Additionally, the proposed electrode has demonstrated many advantages such as easy preparation, elevated sensitivity, stability, and enhanced catalytic activity, and can be successfully applied in real sample analysis.
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