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Li Y, Fan Y, Zhao S, Cheng B. Ultrasound-triggered piezoelectric polyetheretherketone with boosted osteogenesis via regulating Akt/GSK3β/β-catenin pathway. J Nanobiotechnology 2024; 22:539. [PMID: 39237993 PMCID: PMC11375992 DOI: 10.1186/s12951-024-02814-9] [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: 07/07/2024] [Accepted: 08/27/2024] [Indexed: 09/07/2024] Open
Abstract
Maxillofacial bone defects can severely impact quality of life by impairing physiological functions such as chewing, breathing, swallowing, and pronunciation. Polyether ether ketone (PEEK) is commonly used for the repair of maxillofacial defects due to its mechanical adaptability, while its osteogenic properties still need refinement. Herein, we have utilized the piezoelectric effect exhibited by barium titanate (BTO) under low-intensity pulsed ultrasound (LIPUS) to develop an ultrasound responsive PEEK (PDA@BTO-SPEEK, PBSP) through the mediating effect of polydopamine (PDA), for repairing maxillofacial bone defects. After modification by PDA@BTO, PBSP possesses better hydrophilicity, which is conducive to cell growth and adhesion. Simultaneously, by virtue of the piezoelectric characteristics of BTO, PBSP obtains a piezoelectric coefficient that matches the bone cortex. Notably, when PBSP is stimulated by LIPUS, it can generate stable electricity and effectively accelerate the osteogenic differentiation of osteoblasts through the regulation of the Piezo1-induced calcium (Ca2+) influx and Akt/GSK3β/β-catenin pathway. In addition, PBSP presents satisfactory therapeutic effects in rat skull defect models, and its osteogenic efficiency can be further improved under LIPUS stimulation with high tissue penetration. Collectively, PBSP + LIPUS exhibits great potential as a promising alternative strategy for the repair of maxillofacial bone defects.
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Affiliation(s)
- Yue Li
- Department of Stomatology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, 430071, China
| | - Yingying Fan
- Department of Stomatology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, 430071, China
| | - Siyu Zhao
- Department of Stomatology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, 430071, China.
| | - Bo Cheng
- Department of Stomatology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, 430071, China.
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2
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Nagles E, Riesco F, Roldan-Tello L. Electrochemical Determination of Dopamine with a Carbon Paste-Lanthanum (III) Oxide Micro-Composite Electrode: Effect of Cetyl Trimethyl Ammonium Bromide Surfactanton Selectivity. SENSORS (BASEL, SWITZERLAND) 2024; 24:5420. [PMID: 39205114 PMCID: PMC11359863 DOI: 10.3390/s24165420] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/22/2024] [Revised: 08/12/2024] [Accepted: 08/19/2024] [Indexed: 09/04/2024]
Abstract
This paper presents a new application of a lanthanum oxide (III)-modified carbon paste electrode (LaOX/CPE) for dopamine (DP) detection in the presence of ascorbic acid (AA). The presence of cetyl trimethyl ammonium bromide (CTAB) facilitated the LaOX/CPE electrode's ability to detect DP amidst AA interference, resulting in a substantial 70.0% increase in the anodic peak current for DP when compared to the unmodified carbon paste electrode (CPE). CTAB enabled clear separation of the anodic peaks for DP and AA by nearly 0.2 V, despite their initially overlapping potential values, through the ion-dipole interaction of AA and CTAB. The electrode was characterized using cyclic voltammetry (CV) and energy-dispersive spectroscopy (EDS). The method demonstrated a detection limit of 0.06 µmol/L with a relative standard deviation (RSD) of 6.0% (n = 15). Accuracy was assessed through the relative error and recovery percent, using urine samples spiked with known quantities of DP.
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Affiliation(s)
- Edgar Nagles
- Facultad de Química e Ingeniería Química, Universidad Nacional Mayor de San Marcos, Lima 15081, Peru; (F.R.); (L.R.-T.)
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3
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Boruah PK, Sharma N, Das MR, Ohtani R, Le Ouay B, Ohba M. Metal-organic framework/Nb 4C 3T x MXene composites for ultrasensitive detection of dopamine. Chem Commun (Camb) 2024; 60:7307-7310. [PMID: 38758095 DOI: 10.1039/d4cc00694a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/18/2024]
Abstract
An easy, in situ growth approach led to the formation of several composites of metal-organic framewoks and Nb4C3Tx MXenes mixed intimately at the submicron scale. The high affinity of MXene surface for dopamine, enhanced by a nanostructuration induced by MOFs, resulted in superior sensing performances. The system exhibited good linearity over the 1-100 nM range, with an excellent limit of detection of 0.2 nM.
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Affiliation(s)
- Purna K Boruah
- Department of Chemistry, Faculty of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Nidhi Sharma
- Materials Sciences and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, Assam, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Manash R Das
- Materials Sciences and Technology Division, CSIR-North East Institute of Science and Technology, Jorhat 785006, Assam, India
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad 201002, India
| | - Ryo Ohtani
- Department of Chemistry, Faculty of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Benjamin Le Ouay
- Department of Chemistry, Faculty of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
| | - Masaaki Ohba
- Department of Chemistry, Faculty of Science, Kyushu University, 744 Motooka, Nishi-ku, Fukuoka 819-0395, Japan.
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4
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Kamaha Tchekep AG, Suryanarayanan V, Pattanayak DK. New insight into interference-free and highly sensitive dopamine electroanalysis. Anal Chim Acta 2024; 1291:342234. [PMID: 38280788 DOI: 10.1016/j.aca.2024.342234] [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: 08/30/2023] [Revised: 11/12/2023] [Accepted: 01/09/2024] [Indexed: 01/29/2024]
Abstract
Early diagnosis of Parkinson's disease and hyperprolactinemia based on electrochemical dopamine (DA) sensing appears as an efficient and promising practical diagnostic method. However, the coexistence of DA in real samples with ascorbic acid (AA) and uric acid (UA), which oxidize at potentials close to its own, prevents the accurate electrochemical DA sensing and therefore, hinders the effective diagnosis of these diseases. In this work, we successfully combined the electrostatic proprieties of GO, the electron transfer properties of an AuNPs@MWCNTs nanocomposite and the ability of thiol group of the amino acid l-cysteine to react chemically with carbonyl groups of UA, to develop a novel approach that enabled complete suppression of interference from AA and UA and hence, accurate DA electroanalysis in the conditions close to those of human blood serum. The chemical reaction between l-cysteine and UA was evidenced by monitoring the DPV responses of UA under different conditions. XRD, Raman spectroscopy, XPS and FE-SEM revealed the successful synthesis of GO and AuNPs@MWCNTs. The study of the electrode material (GO-AuNPs@MWCNTs) morphology via FE-SEM and HR-TEM showed that AuNPs@MWCNTs are distributed throughout the exfoliated GO layers. The fabricated sensor was calibrated in the concentration range of 0.5-5 μM, in the presence of the highest blood concentrations of AA and UA for healthy individuals. A linear relationship was observed and the LOD was found to be 1.31 nM (S/N = 3). Furthermore, the sensor showed good electron transfer kinetics, good repeatability and reproducibility, satisfactory long-term stability, and recoveries in human blood serum.
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Affiliation(s)
- A G Kamaha Tchekep
- Electrochemical Process Engineering Division, CSIR-Central Electrochemical Research Institute, Karaikudi, 630003, Tamil Nadu, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India
| | - V Suryanarayanan
- Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India; Electro Organic & Materials Electrochemistry Division, CSIR-Central Electrochemical Research Institute, Karaikudi, 630003, Tamil Nadu, India
| | - Deepak K Pattanayak
- Electrochemical Process Engineering Division, CSIR-Central Electrochemical Research Institute, Karaikudi, 630003, Tamil Nadu, India; Academy of Scientific and Innovative Research (AcSIR), Ghaziabad, 201002, India.
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5
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Sipuka D, Olorundare FOG, Makaluza S, Midzi N, Sebokolodi TI, Arotiba OA, Nkosi D. Dendrimer-Gold Nanocomposite-Based Electrochemical Aptasensor for the Detection of Dopamine. ACS OMEGA 2023; 8:33403-33411. [PMID: 37744816 PMCID: PMC10515171 DOI: 10.1021/acsomega.3c03133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/06/2023] [Accepted: 07/07/2023] [Indexed: 09/26/2023]
Abstract
Dopamine is an important neurotransmitter and biomarker that plays a vital role in our neurological system and body. Thus, it is important to monitor the concentration levels of dopamine in our bodies. We report an aptamer-based sensor fabricated through an electro-co-deposition of a generation 3 poly(propylene imine) (PPI) dendrimer and gold nanoparticles (AuNPs) on a glassy carbon (GC) electrode by cyclic voltammetry. Through self-assembly, a single-stranded thiolated dopamine aptamer was immobilized on the GC/PPI/AuNPs electrode to prepare an aptasensor. Voltammetry and electrochemical impedance spectroscopy (EIS) were used to characterize the modified electrodes. The readout for the biorecognition event between the aptamer and various dopamine concentrations was attained from square wave voltammetry and EIS. The aptasensor detected dopamine from the range of 10-200 nM, with a limit of detection of 0.26 and 0.011 nM from SWV and EIS, respectively. The aptasensor was selective toward dopamine when different amounts of epinephrine and ascorbic acid were present. The aptasensor was applicable in a more complex matrix of human serum.
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Affiliation(s)
- Dimpo
S. Sipuka
- Department
of Chemical Sciences, University of Johannesburg, Doornfontein, 2028 Johannesburg, South Africa
- Centre
for Nanomaterials Science Research, University
of Johannesburg, 2028 Johannesburg, South Africa
| | - Foluke O. G. Olorundare
- Department
of Chemical Sciences, University of Johannesburg, Doornfontein, 2028 Johannesburg, South Africa
| | - Sesethu Makaluza
- Department
of Chemical Sciences, University of Johannesburg, Doornfontein, 2028 Johannesburg, South Africa
- Centre
for Nanomaterials Science Research, University
of Johannesburg, 2028 Johannesburg, South Africa
| | - Nyasha Midzi
- Department
of Chemical Sciences, University of Johannesburg, Doornfontein, 2028 Johannesburg, South Africa
| | - Tsholofelo I. Sebokolodi
- Department
of Chemical Sciences, University of Johannesburg, Doornfontein, 2028 Johannesburg, South Africa
- Centre
for Nanomaterials Science Research, University
of Johannesburg, 2028 Johannesburg, South Africa
| | - Omotayo A. Arotiba
- Department
of Chemical Sciences, University of Johannesburg, Doornfontein, 2028 Johannesburg, South Africa
- Centre
for Nanomaterials Science Research, University
of Johannesburg, 2028 Johannesburg, South Africa
| | - Duduzile Nkosi
- Department
of Chemical Sciences, University of Johannesburg, Doornfontein, 2028 Johannesburg, South Africa
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6
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Ravariu C. From Enzymatic Dopamine Biosensors to OECT Biosensors of Dopamine. BIOSENSORS 2023; 13:806. [PMID: 37622892 PMCID: PMC10452593 DOI: 10.3390/bios13080806] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/17/2023] [Revised: 08/04/2023] [Accepted: 08/09/2023] [Indexed: 08/26/2023]
Abstract
Neurotransmitters are an important category of substances used inside the nervous system, whose detection with biosensors has been seriously addressed in the last decades. Dopamine, a neurotransmitter from the catecholamine family, was recently discovered to have implications for cardiac arrest or muscle contractions. In addition to having many other neuro-psychiatric implications, dopamine can be detected in blood, urine, and sweat. This review highlights the importance of biosensors as influential tools for dopamine recognition. The first part of this article is related to an introduction to biosensors for neurotransmitters, with a focus on dopamine. The regular methods in their detection are expensive and require high expertise personnel. A major direction of evolution of these biosensors has expanded with the integration of active biological materials suitable for molecular recognition near electronic devices. Secondly, for dopamine in particular, the miniaturized biosensors offer excellent sensitivity and specificity and offer cheaper detection than conventional spectrometry, while their linear detection ranges from the last years fall exactly on the clinical intervals. Thirdly, the applications of novel nanomaterials and biomaterials to these biosensors are discussed. Older generations, metabolism-based or enzymatic biosensors, could not detect concentrations below the micro-molar range. But new generations of biosensors combine aptamer receptors and organic electrochemical transistors, OECTs, as transducers. They have pushed the detection limit to the pico-molar and even femto-molar ranges, which fully correspond to the usual ranges of clinical detection of human dopamine in body humors that cover 0.1 ÷ 10 nM. In addition, if ten years ago the use of natural dopamine receptors on cell membranes seemed impossible for biosensors, the actual technology allows co-integrate transistors and vesicles with natural receptors of dopamine, like G protein-coupled receptors. The technology is still complicated, but the uni-molecular detection selectivity is promising.
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Affiliation(s)
- Cristian Ravariu
- Biodevices and Nano-Electronics of Cell Group, Department of Electronic Devices Circuits and Architectures, Polytechnic University of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania
- EduSciArt SRL, Iovita 2, 050686 Bucharest, Romania
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7
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Li G, Wang B, Li L, Li X, Yan R, Liang J, Zhou X, Li L, Zhou Z. H-rGO-Pd NPs Nanozyme Enhanced Silver Deposition Strategy for Electrochemical Detection of Glypican-3. Molecules 2023; 28:molecules28052271. [PMID: 36903516 PMCID: PMC10004744 DOI: 10.3390/molecules28052271] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 02/11/2023] [Accepted: 02/15/2023] [Indexed: 03/05/2023] Open
Abstract
Glypican-3 (GPC3), as an emerging biomarker, has been shown to be beneficial for the early diagnosis and treatment of hepatocellular carcinoma (HCC). In this study, an ultrasensitive electrochemical biosensor for GPC3 detection has been constructed based on the hemin-reduced graphene oxide-palladium nanoparticles (H-rGO-Pd NPs) nanozyme-enhanced silver deposition signal amplification strategy. When GPC3 specifically interacted with GPC3 antibody (GPC3Ab) and GPC3 aptamer (GPC3Apt), an "H-rGO-Pd NPs-GPC3Apt/GPC3/GPC3Ab" sandwich complex was formed with peroxidase-like properties which enhanced H2O2 to reduce the silver (Ag) ions in solution to metallic Ag, resulting in the deposition of silver nanoparticles (Ag NPs) on the surface of the biosensor. The amount of deposited Ag, which was derived from the amount of GPC3, was quantified by the differential pulse voltammetry (DPV) method. Under ideal circumstances, the response value was linearly correlated with GPC3 concentration at 10.0-100.0 μg/mL with R2 of 0.9715. When the GPC3 concentration was in the range from 0.01 to 10.0 μg/mL, the response value was logarithmically linear with the GPC3 concentration with R2 of 0.9941. The limit of detection was 3.30 ng/mL at a signal-to-noise ratio of three and the sensitivity was 1.535 μAμM-1cm-2. Furthermore, the electrochemical biosensor detected the GPC3 level in actual serum samples with good recoveries (103.78-106.52%) and satisfactory relative standard deviations (RSDs) (1.89-8.81%), which confirmed the applicability of the sensor in practical applications. This study provides a new analytical method for measuring the level of GPC3 in the early diagnosis of HCC.
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Affiliation(s)
- Guiyin Li
- Guangxi Key Laboratory of Information Materials, School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin 541004, China
- College of Chemistry, Guangdong University of Petrochemical Technology, Guandu Road, Maoming 525000, China
| | - Bo Wang
- Guangxi Key Laboratory of Information Materials, School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin 541004, China
| | - Ling Li
- Guangxi Key Laboratory of Information Materials, School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin 541004, China
| | - Xinhao Li
- Guangxi Key Laboratory of Information Materials, School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin 541004, China
| | - Ruijie Yan
- Guangxi Key Laboratory of Information Materials, School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin 541004, China
| | - Jintao Liang
- Guangxi Key Laboratory of Information Materials, School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin 541004, China
| | - Xinchun Zhou
- Guangdi Maoming Chemical Co., Ltd., Maoming High-Tech Industrial Development Zone, Maoming 525000, China
- Correspondence: (X.Z.); (L.L.); (Z.Z.)
| | - Liuxun Li
- Solid Tumour Target Discovery Laboratory, Translational and Clinical Research Institute, Newcastle University Centre for Cancer, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne NE2 4HH, UK
- Correspondence: (X.Z.); (L.L.); (Z.Z.)
| | - Zhide Zhou
- Guangxi Key Laboratory of Information Materials, School of Life and Environmental Sciences, Guilin University of Electronic Technology, Guilin 541004, China
- Correspondence: (X.Z.); (L.L.); (Z.Z.)
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8
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Flexible electroactive membranes for the electrochemical detection of dopamine. Eur Polym J 2023. [DOI: 10.1016/j.eurpolymj.2023.111915] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/13/2023]
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9
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Liu Y, Xu L. Layer-by-Layer Assembly of Two-Dimensional Monolayer Films of Gold Nanoparticles for Electrochemical Determination of Melamine. ANAL LETT 2023. [DOI: 10.1080/00032719.2023.2174132] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Affiliation(s)
- Yijing Liu
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, China
| | - Lan Xu
- School of Chemistry and Chemical Engineering, Southwest University, Chongqing, China
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Wasiewska LA, Diaz FG, Teixeira SR, Burgess CM, Duffy G, O'Riordan A. Amplification-free, highly sensitive electrochemical DNA-based sensor for simultaneous detection of stx1 and stx2 genes of Shiga toxin-producing E. coli (STEC). Electrochim Acta 2023. [DOI: 10.1016/j.electacta.2023.141814] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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11
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Patella B, Narayan T, O'Sullivan B, Daly R, Zanca C, Lovera P, Inguanta R, O'Riordan A. Simultaneous detection of copper and mercury in water samples using in-situ pH control with electrochemical stripping techniques. Electrochim Acta 2022. [DOI: 10.1016/j.electacta.2022.141668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/04/2022]
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12
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Wang Y, Zhao P, Gao B, Yuan M, Yu J, Wang Z, Chen X. Self-reduction of bimetallic nanoparticles on flexible MXene-graphene electrodes for simultaneous detection of ascorbic acid, dopamine, and uric acid. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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13
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Wan M, Jimu A, Yang H, Zhou J, Dai X, Zheng Y, Ou J, Yang Y, Liu J, Wang L. MXene quantum dots enhanced 3D-printed electrochemical sensor for the highly sensitive detection of dopamine. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108180] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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14
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Lopresti F, Patella B, Divita V, Zanca C, Botta L, Radacsi N, O’Riordan A, Aiello G, Kersaudy-Kerhoas M, Inguanta R, La Carrubba V. Green and Integrated Wearable Electrochemical Sensor for Chloride Detection in Sweat. SENSORS (BASEL, SWITZERLAND) 2022; 22:8223. [PMID: 36365929 PMCID: PMC9654961 DOI: 10.3390/s22218223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/28/2022] [Revised: 10/23/2022] [Accepted: 10/24/2022] [Indexed: 06/16/2023]
Abstract
Wearable sensors for sweat biomarkers can provide facile analyte capability and monitoring for several diseases. In this work, a green wearable sensor for sweat absorption and chloride sensing is presented. In order to produce a sustainable device, polylactic acid (PLA) was used for both the substrate and the sweat absorption pad fabrication. The sensor material for chloride detection consisted of silver-based reference, working, and counter electrodes obtained from upcycled compact discs. The PLA substrates were prepared by thermal bonding of PLA sheets obtained via a flat die extruder, prototyped in single functional layers via CO2 laser cutting, and bonded via hot-press. The effect of cold plasma treatment on the transparency and bonding strength of PLA sheets was investigated. The PLA membrane, to act as a sweat absorption pad, was directly deposited onto the membrane holder layer by means of an electrolyte-assisted electrospinning technique. The membrane adhesion capacity was investigated by indentation tests in both dry and wet modes. The integrated device made of PLA and silver-based electrodes was used to quantify chloride ions. The calibration tests revealed that the proposed sensor platform could quantify chloride ions in a sensitive and reproducible way. The chloride ions were also quantified in a real sweat sample collected from a healthy volunteer. Therefore, we demonstrated the feasibility of a green and integrated sweat sensor that can be applied directly on human skin to quantify chloride ions.
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Affiliation(s)
- Francesco Lopresti
- Department of Engineering, University of Palermo, RU INSTM of Palermo, Viale delle Scienze, 90128 Palermo, Italy
| | - Bernardo Patella
- Department of Engineering, University of Palermo, RU INSTM of Palermo, Viale delle Scienze, 90128 Palermo, Italy
| | - Vito Divita
- Department of Engineering, University of Palermo, RU INSTM of Palermo, Viale delle Scienze, 90128 Palermo, Italy
| | - Claudio Zanca
- Department of Engineering, University of Palermo, RU INSTM of Palermo, Viale delle Scienze, 90128 Palermo, Italy
| | - Luigi Botta
- Department of Engineering, University of Palermo, RU INSTM of Palermo, Viale delle Scienze, 90128 Palermo, Italy
| | - Norbert Radacsi
- School of Engineering, Institute for Materials and Processes, The University of Edinburgh, King’s Buildings, Robert Stevenson Road, Edinburgh EH9 3FB, UK
| | - Alan O’Riordan
- Nanotechnology Group, Tyndall National Institute, University College Cork, T12R5CP Cork, Ireland
| | - Giuseppe Aiello
- Department of Engineering, University of Palermo, RU INSTM of Palermo, Viale delle Scienze, 90128 Palermo, Italy
| | - Maïwenn Kersaudy-Kerhoas
- Institute of Biological Chemistry, Biophysics and Bioengineering, Heriot-Watt University, Edinburgh EH14 4AS, UK
| | - Rosalinda Inguanta
- Department of Engineering, University of Palermo, RU INSTM of Palermo, Viale delle Scienze, 90128 Palermo, Italy
| | - Vincenzo La Carrubba
- Department of Engineering, University of Palermo, RU INSTM of Palermo, Viale delle Scienze, 90128 Palermo, Italy
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15
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Patella B, Vincenzo SD, Zanca C, Bollaci L, Ferraro M, Giuffrè MR, Cipollina C, Bruno MG, Aiello G, Russo M, Inguanta R, Pace E. Electrochemical Quantification of H 2O 2 Released by Airway Cells Growing in Different Culture Media. MICROMACHINES 2022; 13:1762. [PMID: 36296115 PMCID: PMC9611932 DOI: 10.3390/mi13101762] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 10/11/2022] [Accepted: 10/12/2022] [Indexed: 05/30/2023]
Abstract
Quantification of oxidative stress is a challenging task that can help in monitoring chronic inflammatory respiratory airway diseases. Different studies can be found in the literature regarding the development of electrochemical sensors for H2O2 in cell culture medium to quantify oxidative stress. However, there are very limited data regarding the impact of the cell culture medium on the electrochemical quantification of H2O2. In this work, we studied the effect of different media (RPMI, MEM, DMEM, Ham's F12 and BEGM/DMEM) on the electrochemical quantification of H2O2. The used electrode is based on reduced graphene oxide (rGO) and gold nanoparticles (AuNPs) and was obtained by co-electrodeposition. To reduce the electrode fouling by the medium, the effect of dilution was investigated using diluted (50% v/v in PBS) and undiluted media. With the same aim, two electrochemical techniques were employed, chronoamperometry (CH) and linear scan voltammetry (LSV). The influence of different interfering species and the effect of the operating temperature of 37 °C were also studied in order to simulate the operation of the sensor in the culture plate. The LSV technique made the sensor adaptable to undiluted media because the test time is short, compared with the CH technique, reducing the electrode fouling. The long-term stability of the sensors was also evaluated by testing different storage conditions. By storing the electrode at 4 °C, the sensor performance was not reduced for up to 21 days. The sensors were validated measuring H2O2 released by two different human bronchial epithelial cell lines (A549, 16HBE) and human primary bronchial epithelial cells (PBEC) grown in RPMI, MEM and BEGM/DMEM media. To confirm the results obtained with the sensor, the release of reactive oxygen species was also evaluated with a standard flow cytometry technique. The results obtained with the two techniques were very similar. Thus, the LSV technique permits using the proposed sensor for an effective oxidative stress quantification in different culture media and without dilution.
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Affiliation(s)
- Bernardo Patella
- Department of Engineering, University of Palermo, 90128 Palermo, Italy
| | - Serena Di Vincenzo
- Institute of Traslational Pharmacology (IFT), National Research Council of Italy (CNR), 90146 Palermo, Italy
| | - Claudio Zanca
- Department of Engineering, University of Palermo, 90128 Palermo, Italy
| | - Luciano Bollaci
- Department of Engineering, University of Palermo, 90128 Palermo, Italy
| | - Maria Ferraro
- Institute of Traslational Pharmacology (IFT), National Research Council of Italy (CNR), 90146 Palermo, Italy
| | | | - Chiara Cipollina
- Institute of Traslational Pharmacology (IFT), National Research Council of Italy (CNR), 90146 Palermo, Italy
- Ri.MED Foundation, 90146 Palermo, Italy
| | | | - Giuseppe Aiello
- Department of Engineering, University of Palermo, 90128 Palermo, Italy
| | | | | | - Elisabetta Pace
- Institute of Traslational Pharmacology (IFT), National Research Council of Italy (CNR), 90146 Palermo, Italy
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16
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Zanca C, Carbone S, Patella B, Lopresti F, Aiello G, Brucato V, Carfì Pavia F, La Carrubba V, Inguanta R. Composite Coatings of Chitosan and Silver Nanoparticles Obtained by Galvanic Deposition for Orthopedic Implants. Polymers (Basel) 2022; 14:3915. [PMID: 36146057 PMCID: PMC9504697 DOI: 10.3390/polym14183915] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2022] [Revised: 09/06/2022] [Accepted: 09/12/2022] [Indexed: 01/18/2023] Open
Abstract
In this work, composite coatings of chitosan and silver nanoparticles were presented as an antibacterial coating for orthopedic implants. Coatings were deposited on AISI 304L using the galvanic deposition method. In galvanic deposition, the difference of the electrochemical redox potential between two metals (the substrate and a sacrificial anode) has the pivotal role in the process. In the coupling of these two metals a spontaneous redox reaction occurs and thus no external power supply is necessary. Using this process, a uniform deposition on the exposed area and a good adherence of the composite coating on the metallic substrate were achieved. Physical-chemical characterizations were carried out to evaluate morphology, chemical composition, and the presence of silver nanoparticles. These characterizations have shown the deposition of coatings with homogenous and porous surface structures with silver nanoparticles incorporated and distributed into the polymeric matrix. Corrosion tests were also carried out in a simulated body fluid at 37 °C in order to simulate the same physiological conditions. Corrosion potential and corrosion current density were obtained from the polarization curves by Tafel extrapolation. The results show an improvement in protection against corrosion phenomena compared to bare AISI 304L. Furthermore, the ability of the coating to release the Ag+ was evaluated in the simulated body fluid at 37 °C and it was found that the release mechanism switches from anomalous to diffusion controlled after 3 h.
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Affiliation(s)
- C. Zanca
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90133 Palermo, Italy
| | - S. Carbone
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90133 Palermo, Italy
| | - B. Patella
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90133 Palermo, Italy
| | - F. Lopresti
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90133 Palermo, Italy
| | - G. Aiello
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90133 Palermo, Italy
| | - V. Brucato
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90133 Palermo, Italy
| | - F. Carfì Pavia
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90133 Palermo, Italy
- Consorzio Universitario di Caltanissetta, Corso Vittorio Emanuele 92, 93100 Caltanissetta, Italy
| | - V. La Carrubba
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90133 Palermo, Italy
- ATeN Center, University of Palermo, Viale delle Scienze, 90133 Palermo, Italy
| | - R. Inguanta
- Department of Engineering, University of Palermo, RU INSTM, Viale delle Scienze, 90133 Palermo, Italy
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17
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Evtugyn GA, Porfireva AV, Belyakova SV. Electrochemical DNA sensors for drug determination. J Pharm Biomed Anal 2022; 221:115058. [PMID: 36179503 DOI: 10.1016/j.jpba.2022.115058] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2022] [Revised: 09/13/2022] [Accepted: 09/14/2022] [Indexed: 11/16/2022]
Abstract
In this review, recent achievements in the development of the DNA biosensors developed for the drug determination have been presented with particular emphasis to the main principles of their assembling and signal measurement approaches. The design of the DNA sensors is considered with characterization of auxiliary components and their necessity for the biosensor operation. Carbon nanomaterials, metals and their complexes as well as electropolymerized polymers are briefly described in the assembly of DNA sensors. The performance of the DNA sensors is summarized within 2017-2022 for various drugs and factors influencing the sensitivity and selectivity of the response are discussed. Special attention is paid to the mechanism of the signal generation and possible drawbacks in the analysis of real samples.
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Affiliation(s)
- G A Evtugyn
- A.M. Butlerov' Chemistry Institute of Kazan Federal University, 18 Kremlevskaya Street, 420008 Kazan, Russian Federation; Analytical Chemistry Department of Chemical Technology Institute of Ural Federal University, 19 Mira Street, Ekaterinburg 620002, Russian Federation.
| | - A V Porfireva
- A.M. Butlerov' Chemistry Institute of Kazan Federal University, 18 Kremlevskaya Street, 420008 Kazan, Russian Federation
| | - S V Belyakova
- A.M. Butlerov' Chemistry Institute of Kazan Federal University, 18 Kremlevskaya Street, 420008 Kazan, Russian Federation
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18
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Chang JL, Liao CW, Arthisree D, Senthil Kumar A, Zen JM. A Size-Controlled Graphene Oxide Materials Obtained by One-Step Electrochemical Exfoliation of Carbon Fiber Cloth for Applications to In Situ Gold Nanoparticle Formation and Electrochemical Sensors—A Preliminary Study. BIOSENSORS 2022; 12:bios12060360. [PMID: 35735508 PMCID: PMC9221386 DOI: 10.3390/bios12060360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2022] [Revised: 05/17/2022] [Accepted: 05/17/2022] [Indexed: 11/16/2022]
Abstract
A simple, one-step and facile method has been introduced to prepare fluorescent and electrochemically active carbon nanoparticles with single-size distribution and good long-term stability by electrochemical exfoliation of polyacrylonitrile-based carbon fibers in an alkaline solution-phase condition. The preparation condition was systematically optimized by studying the effect of temperature and electrolytes. It has been found that an electrochemical exfoliation reaction carried out at an applied potential of 2 V vs. Ag/AgCl in a phosphate-ion-containing alkaline solution at a temperature of 40 °C is an ideal condition for the preparation of 14 ± 4 nm-sized carbon nanoparticles. Unlike the literature protocols, there are no filtration and membrane dialysis-based off-line sample pretreatments adopted in this work. The as-prepared carbon nanoparticles were characterized by fluorescence, Raman spectrum, transmission electron microscope, and X-ray photoelectron spectroscopic characterization methods. It was found that the carbon–oxygen functional group rich in graphene–oxide quantum dots (GOQDs) such as carbon nanoparticles were formed in this work. A preliminary study relating to simultaneous electrochemical oxidation and the sensing of uric acid and ascorbic acid with well-resolved peaks was demonstrated as a model system to extend the new carbon material for electroanalytical applications. Furthermore, in situ synthesis of 2 nm-sized gold nanoparticles stabilized by GOQDs was presented. The carbon nanoparticles prepared by the direct method in this work have shown good stability over 6 months when stored at room temperature. The electrochemical exfoliation reaction has been found to be highly reproducible and suitable for bulk synthesis of luminescence-effective carbon nanoparticles to facilitate fundamental studies and practical applications.
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Affiliation(s)
- Jen-Lin Chang
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan; (J.-L.C.); (C.-W.L.)
| | - Chen-Wei Liao
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan; (J.-L.C.); (C.-W.L.)
| | - D. Arthisree
- Nano and Bioelectrochemistry Research Laboratory, Carbon Dioxide Research and Green Technology Centre, Vellore Institute of Technology, Vellore 632 014, India;
| | - Annamalai Senthil Kumar
- Nano and Bioelectrochemistry Research Laboratory, Carbon Dioxide Research and Green Technology Centre, Vellore Institute of Technology, Vellore 632 014, India;
- Department of Chemistry, School of Advanced Sciences, Vellore Institute of Technology, Vellore 632 014, India
- Correspondence: or (A.S.K.); (J.-M.Z.)
| | - Jyh-Myng Zen
- Department of Chemistry, National Chung Hsing University, Taichung 402, Taiwan; (J.-L.C.); (C.-W.L.)
- Correspondence: or (A.S.K.); (J.-M.Z.)
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19
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Mahmoudi-Moghaddam H, Amiri M, Javar HA, Yousif QA, Salavati-Niasari M. A facile green synthesis of a perovskite-type nanocomposite using Crataegus and walnut leaf for electrochemical determination of morphine. Anal Chim Acta 2022; 1203:339691. [DOI: 10.1016/j.aca.2022.339691] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Revised: 03/02/2022] [Accepted: 03/05/2022] [Indexed: 11/25/2022]
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Electrochemical Detection of Ascorbic Acid in Oranges at MWCNT-AONP Nanocomposite Fabricated Electrode. NANOMATERIALS 2022; 12:nano12040645. [PMID: 35214973 PMCID: PMC8877794 DOI: 10.3390/nano12040645] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Revised: 02/07/2022] [Accepted: 02/11/2022] [Indexed: 01/22/2023]
Abstract
Ascorbic acid (AA) is an essential vitamin in the body, influencing collagen formation, as well as norepinephrine, folic acids, tryptophan, tyrosine, lysine, and neuronal hormone metabolism. This work reports on electrochemical detection of ascorbic acid (AA) in oranges using screen-print carbon electrodes (SPCEs) fabricated with multi-walled carbon nanotube- antimony oxide nanoparticle (MWCNT-AONP) nanocomposite. The nanocomposite-modified electrode displayed enhanced electron transfer and a better electrocatalytic reaction towards AA compared to other fabricated electrodes. The current response at the nanocomposite-modified electrode was four times bigger than the bare electrode. The sensitivity and limit of detection (LOD) at the nanocomposite modified electrode was 0.3663 [AA]/µM and 140 nM, respectively, with linearity from 0.16–0.640 μM and regression value R2 = 0.985, using square wave voltammetry (SWV) for AA detection. Two well-separated oxidation peaks were observed in a mixed system containing AA and serotonin (5-HT); and the sensitivity and LOD were 0.0224 [AA]/µA, and 5.85 µΜ, respectively, with a concentration range from 23 to 100 µM (R2 = 0.9969) for AA detection. The proposed sensor outperformed other AA sensors reported in the literature. The fabricated electrode showed great applicability with excellent recoveries ranging from 99 to 107 %, with a mean relative standard deviation (RSD) value of 3.52 % (n = 3) towards detecting AA in fresh oranges.
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21
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Role of Silver Nanoparticle-Doped 2-Aminodiphenylamine Polymeric Material in the Detection of Dopamine (DA) with Uric Acid Interference. MATERIALS 2022; 15:ma15041308. [PMID: 35207848 PMCID: PMC8875575 DOI: 10.3390/ma15041308] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Revised: 02/03/2022] [Accepted: 02/08/2022] [Indexed: 02/01/2023]
Abstract
A viable electrochemical approach for the detection of dopamine (DA) in uric acid (UA) utilizing a silver nanoparticle-doped 2-aminodiphenylamine (AgNPs-2ADPA) electrode was invented. The electrochemical performance of DA showed that the incorporated electrode displayed outstanding electrocatalytic performance to the electrochemical oxidation of DA. In our study, the AgNPs-2ADPA exhibits remarkable catalytic activity, retaining high current value and resilience when employed as a working electrode component for electrocatalytic detection of DA. We have also utilized the bare and polymeric-2ADPA in DA detection for a comparison study. This method offers a facile route with extraordinary sensitivity, selectivity, and strength for the voltammetric detection of DA, even in the presence of UA and ascorbic acid (AA) as interferents, that can be employed for pharmaceutical and biological specimens.
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22
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Patella B, Moukri N, Regalbuto G, Cipollina C, Pace E, Di Vincenzo S, Aiello G, O’Riordan A, Inguanta R. Electrochemical Synthesis of Zinc Oxide Nanostructures on Flexible Substrate and Application as an Electrochemical Immunoglobulin-G Immunosensor. MATERIALS (BASEL, SWITZERLAND) 2022; 15:713. [PMID: 35160668 PMCID: PMC8837124 DOI: 10.3390/ma15030713] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Revised: 01/10/2022] [Accepted: 01/11/2022] [Indexed: 11/17/2022]
Abstract
Immunoglobulin G (IgG), a type of antibody, represents approximately 75% of serum antibodies in humans, and is the most common type of antibody found in blood circulation. Consequently, the development of simple, fast and reliable systems for IgG detection, which can be achieved using electrochemical sandwich-type immunosensors, is of considerable interest. In this study we have developed an immunosensor for human (H)-IgG using an inexpensive and very simple fabrication method based on ZnO nanorods (NRs) obtained through the electrodeposition of ZnO. The ZnO NRs were treated by electrodepositing a layer of reduced graphene oxide (rGO) to ensure an easy immobilization of the antibodies. On Indium Tin Oxide supported on Polyethylene Terephthalate/ZnO NRs/rGO substrate, the sandwich configuration of the immunosensor was built through different incubation steps, which were all optimized. The immunosensor is electrochemically active thanks to the presence of gold nanoparticles tagging the secondary antibody. The immunosensor was used to measure the current density of the hydrogen development reaction which is indirectly linked to the concentration of H-IgG. In this way the calibration curve was constructed obtaining a logarithmic linear range of 10-1000 ng/mL with a detection limit of few ng/mL and good sensitivity.
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Affiliation(s)
- Bernardo Patella
- Dipartimento di Ingegneria, Università degli Studi di Palermo, 90128 Palermo, Italy; (B.P.); (N.M.); (G.R.); (G.A.)
| | - Nadia Moukri
- Dipartimento di Ingegneria, Università degli Studi di Palermo, 90128 Palermo, Italy; (B.P.); (N.M.); (G.R.); (G.A.)
| | - Gaia Regalbuto
- Dipartimento di Ingegneria, Università degli Studi di Palermo, 90128 Palermo, Italy; (B.P.); (N.M.); (G.R.); (G.A.)
| | - Chiara Cipollina
- Fondazione Ri.MED, 90133 Palermo, Italy;
- Istituto per la Ricerca e l’Innovazione Biomedica (IRIB)-Consiglio Nazionale delle Ricerche, 90153 Palermo, Italy; (E.P.); (S.D.V.)
| | - Elisabetta Pace
- Istituto per la Ricerca e l’Innovazione Biomedica (IRIB)-Consiglio Nazionale delle Ricerche, 90153 Palermo, Italy; (E.P.); (S.D.V.)
| | - Serena Di Vincenzo
- Istituto per la Ricerca e l’Innovazione Biomedica (IRIB)-Consiglio Nazionale delle Ricerche, 90153 Palermo, Italy; (E.P.); (S.D.V.)
| | - Giuseppe Aiello
- Dipartimento di Ingegneria, Università degli Studi di Palermo, 90128 Palermo, Italy; (B.P.); (N.M.); (G.R.); (G.A.)
| | - Alan O’Riordan
- Tyndall National Institute, University College Cork, T12 R5CP Cork, Ireland;
| | - Rosalinda Inguanta
- Dipartimento di Ingegneria, Università degli Studi di Palermo, 90128 Palermo, Italy; (B.P.); (N.M.); (G.R.); (G.A.)
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Baig N, Kawde AN, Elgamouz A, Morsy M, Abdelfattah AM, Othaman R. Graphene nanosheet-sandwiched platinum nanoparticles deposited on a graphite pencil electrode as an ultrasensitive sensor for dopamine. RSC Adv 2022; 12:2057-2067. [PMID: 35425276 PMCID: PMC8979215 DOI: 10.1039/d1ra08464j] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2021] [Accepted: 12/30/2021] [Indexed: 01/22/2023] Open
Abstract
An ultra-sensitive sensor of dopamine is introduced. The sensor is constructed by encapsulating platinum nanoparticles (PtNPs) between reduced graphene oxide (GR) nanosheets. The sandwiched PtNPs between GR layers acted as a spacer to prevent aggregation and provided a fine connection between the GR nanosheets to provide fast charge transfer. This specific orientation of the GR nanosheets and PtNPs on the graphite pencil electrode (GPE) substantially improved the electrocatalytic activity of the sensor. The synthesized graphene oxide and the fabricated sensor were comprehensively characterized by Fourier-transform infrared spectroscopy (FTIR), Raman spectroscopy, field emission-scanning electron microscopy (FE-SEM), electrochemical impedance spectroscopy (EIS), cyclic voltammetry (CV), and square wave voltammetry (SWV). The value of the charge transfer coefficient (α), apparent heterogeneous electron transfer rate constant (k s), and electroactive surface area for dopamine were found to be about 0.57, 8.99 s-1, and 0.81 cm2, respectively. The developed sensor is highly sensitive towards dopamine, and the detection limit is 9.0 nM. The sensor response is linear for dopamine concentration from 0.06 to 20 μM (R 2 = 0.9991). The behavior of the sensor for dopamine in the presence of a high concentration of l(+) Ascorbic acid and other potential interferents was satisfactory. High recovery percentage between 90% and 105% in the human urine sample, good reproducibility, and facile fabrication of the electrode make it a good candidate for dopamine sensing.
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Affiliation(s)
- Nadeem Baig
- Interdisciplinary Research Center for Membranes and Water Security, King Fahd University of Petroleum and Minerals Dhahran 31261 Saudi Arabia
| | - Abdel-Nasser Kawde
- Department of Chemistry, College of Sciences, University of Sharjah P. O. Box 27272 United Arab Emirates
| | - Abdelaziz Elgamouz
- Department of Chemistry, College of Sciences, University of Sharjah P. O. Box 27272 United Arab Emirates
| | - Mohamed Morsy
- Chemistry Department, King Fahd University of Petroleum and Minerals Dhahran 31261 Saudi Arabia
| | - Ahmed Mohsen Abdelfattah
- Department of Architecture, King Fahd University of Petroleum & Minerals Dhahran 31261 Saudi Arabia
| | - Rizafizah Othaman
- Polymer Research Center, Faculty of Science and Technology, Universiti Kebangsaan Malaysia Bangi Selangor 43600 Malaysia
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24
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Enzyme-like Fe-N5 single atom catalyst for simultaneous electrochemical detection of dopamine and uric acid. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2021.115956] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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