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Veríssimo de Oliveira WB, Couto da Silva G, Oliveira RS, Henrique de Souza Leite Rocha P, Cunha de Souza C, Costa Matos MA, Lisboa TP, Matos RC. A cost-effective method for the sensitive detection of levofloxacin using a 3D composite electrode composed of nail polish, graphite and aluminium oxide. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2024. [PMID: 39171860 DOI: 10.1039/d4ay01231c] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 08/23/2024]
Abstract
The potential impact on human health and the environment has spurred significant interest in detecting and quantifying pharmaceutical compounds across various matrices, from environmental to biological samples. Here, we present an electrochemical approach for determining levofloxacin in drug, synthetic urine, water, and breast milk samples. An affordable sensor was constructed using 3D printing and composite material based on nail polish, graphite, and aluminum oxide. The conductive composite material was characterized spectroscopically, electrochemically, and by imaging techniques. Subsequently, an electrochemical method based on square wave voltammetry was optimized and applied. The method exhibited good sensitivity (5.11 ± 0.0912 μA L μmol-1 cm-2) and enhanced stability (RSD = 7.2%), with electrochemical responses correlating with the concentration of levofloxacin in the samples tested, yielding recovery values in the range of 98 to 111%. The developed method demonstrated a robust linear working range from 2 to 100 μmol L-1 and a nanomolar detection limit of 128 nmol L-1, rendering it suitable for quantitative analysis. The sensor also shows promise as a platform for the sensitive detection of pharmaceutical compounds, contributing to greater safety and sustainability in these domains.
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Affiliation(s)
| | - Gabriela Couto da Silva
- Chemistry Department, Federal University of Juiz de Fora, 36026-900, Juiz de Fora, MG, Brazil.
| | - Raylla Santos Oliveira
- Chemistry Department, Federal University of Juiz de Fora, 36026-900, Juiz de Fora, MG, Brazil.
| | | | - Cassiano Cunha de Souza
- Chemistry Department, Federal University of Juiz de Fora, 36026-900, Juiz de Fora, MG, Brazil.
| | | | - Thalles Pedrosa Lisboa
- College of Exact Sciences and Technology, Federal University of Grande Dourados, 79804-970, Dourados, MS, Brazil
| | - Renato Camargo Matos
- Chemistry Department, Federal University of Juiz de Fora, 36026-900, Juiz de Fora, MG, Brazil.
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Olejnik A, Polaczek K, Szkodo M, Stanisławska A, Ryl J, Siuzdak K. Laser-Induced Graphitization of Polydopamine on Titania Nanotubes. ACS APPLIED MATERIALS & INTERFACES 2023; 15. [PMID: 37915241 PMCID: PMC10658452 DOI: 10.1021/acsami.3c11580] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/05/2023] [Revised: 10/17/2023] [Accepted: 10/17/2023] [Indexed: 11/03/2023]
Abstract
Since the discovery of laser-induced graphite/graphene, there has been a notable surge of scientific interest in advancing diverse methodologies for their synthesis and applications. This study focuses on the utilization of a pulsed Nd:YAG laser to achieve graphitization of polydopamine (PDA) deposited on the surface of titania nanotubes. The partial graphitization is corroborated through Raman and XPS spectroscopies and supported by water contact angle, nanomechanical, and electrochemical measurements. Reactive molecular dynamics simulations confirm the possibility of graphitization in the nanosecond time scale with the evolution of NH3, H2O, and CO2 gases. A thorough exploration of the lasing parameter space (wavelength, pulse energy, and number of pulses) was conducted with the aim of improving either electrochemical activity or photocurrent generation. Whereas the 532 nm laser pulses interacted mostly with the PDA coating, the 365 nm pulses were absorbed by both PDA and the substrate nanotubes, leading to a higher graphitization degree. The majority of the photocurrent and quantum efficiency enhancement is observed in the visible light between 400 and 550 nm. The proposed composite is applied as a photoelectrochemical (PEC) sensor of serotonin in nanomolar concentrations. Because of the suppressed recombination and facilitated charge transfer caused by the laser graphitization, the proposed composite exhibits significantly enhanced PEC performance. In the sensing application, it showed superior sensitivity and a limit of detection competitive with nonprecious metal materials.
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Affiliation(s)
- Adrian Olejnik
- Department
of Metrology and Optoelectronics, Faculty of Electronics, Telecommunications
and Informatics, Gdańsk University
of Technology, Narutowicza 11/12 St., Gdańsk 80-233, Poland
- Centre
for Plasma and Laser Engineering, The Szewalski
Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Fiszera 14 St., Gdańsk 80-231, Poland
| | - Krzysztof Polaczek
- Centre
for Plasma and Laser Engineering, The Szewalski
Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Fiszera 14 St., Gdańsk 80-231, Poland
- Department
of Biomedical Chemistry, Faculty of Chemistry
University of Gdansk, Wita Stwosza 63 St, Gdańsk 80-308, Poland
| | - Marek Szkodo
- Institute
of Manufacturing and Materials Technology, Faculty of Mechanical Engineering
and Ship Technology, Gdańsk University
of Technology, Narutowicza 11/12 St., Gdańsk 80-233, Poland
| | - Alicja Stanisławska
- Institute
of Manufacturing and Materials Technology, Faculty of Mechanical Engineering
and Ship Technology, Gdańsk University
of Technology, Narutowicza 11/12 St., Gdańsk 80-233, Poland
| | - Jacek Ryl
- Institute
of Nanotechnology and Materials Engineering and Advanced Materials
Center, Gdańsk University of Technology, Narutowicza 11/12, Gdańsk 80-233, Poland
| | - Katarzyna Siuzdak
- Centre
for Plasma and Laser Engineering, The Szewalski
Institute of Fluid-Flow Machinery, Polish Academy of Sciences, Fiszera 14 St., Gdańsk 80-231, Poland
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Navada MK, Karnikkar NG, D'Souza JN, Kouser S, Aroor G, Kudva J, Jayappa MD. Biosynthesis of phyto functionalized cerium oxide nanoparticles mediated from Scoparia dulsis L. for appraisal of anti-cancer potential against adenocarcinomic lung cancer cells and paracetamol sensing potentiality. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:18901-18920. [PMID: 36217050 DOI: 10.1007/s11356-022-23500-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2022] [Accepted: 10/04/2022] [Indexed: 06/16/2023]
Abstract
This research work aims at the eco-friendly preparation of cerium oxide nanoparticles (CeSD NPs) utilizing the natural extract of Scoparia dulsis L. An attempt was made to analyze the influence of the fuel load on the size, shape, and optical properties of the nanoparticles. The p-XRD studies revealed the controlled formation of NPs with a size not more than 12.74 nm. The surface area studies appraise the mesoporous nature of the synthesized ceria particles, with the maximum specific surface area of 36.06 m2g-1. The nano-regime CeO2 nanoparticles had a definite impact on biomedical and electrochemical studies. The CeSD NPs with minuscule size (10.69 nm) manifested promising antioxidant and human RBC protection activity. The antioxidant properties were evaluated using % DPPH inhibition with of maximum of 83.38. The stabilization of RBC's by CeSD NPs was maximum at 94.97%. However, the CeSD NPs with apparent size (12.74 nm) that utilized greater volume fuel (25 mL) had noticeable results on adenocarcinomic lung (A549) cancer cell viability and antidiabetic study which was maximum of 70.16% at concentration 500 μg/mL. A satisfactory antibacterial application was proffered against chosen bacterial stains. The smallest size CeO2 NPs exhibited the best proton diffusion coefficient (8.16 × 10-6 cm2s-1), and the capacitance values of the CeSD NPs are near in all samples (~ 1.17 to 2.00 F) manifest their compact nano-regime sizes. The paracetamol drug was chosen as analyte to appreciating the superlative efficiency for sensing paracetamol drug with the lowest detection limit.
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Affiliation(s)
- Meghana K Navada
- Department of Studies in Chemistry, Mangalore University, Mangalagangothri, 574199, Karnataka, India
| | - Nagaraja G Karnikkar
- Department of Studies in Chemistry, Mangalore University, Mangalagangothri, 574199, Karnataka, India.
| | - Josline Neetha D'Souza
- Department of Studies in Chemistry, Mangalore University, Mangalagangothri, 574199, Karnataka, India
| | - Sabia Kouser
- Department of Studies in Chemistry, Mangalore University, Mangalagangothri, 574199, Karnataka, India
| | - Ganesha Aroor
- Department of Mechanical and Manufacturing Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, India
| | - Jyothi Kudva
- Department of Chemistry, St Joseph Engineering College, Mangaluru, 575028, Karnataka, India
| | - Manasa D Jayappa
- Department of Studies in Botany, Davangere University, Shivagangothri, Davangere, 577007, Karnataka, India
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Wong A, Santos AM, Proença CA, Baldo TA, Feitosa MHA, Moraes FC, Sotomayor MDPT. Voltammetric Determination of 3-Methylmorphine Using Glassy Carbon Electrode Modified with rGO and Bismuth Film. BIOSENSORS 2022; 12:860. [PMID: 36290997 PMCID: PMC9599292 DOI: 10.3390/bios12100860] [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: 09/21/2022] [Revised: 10/08/2022] [Accepted: 10/09/2022] [Indexed: 06/16/2023]
Abstract
This work reports the development and application of a simple, rapid and low-cost voltammetric method for the determination of 3-methylmorphine at nanomolar levels in clinical and environmental samples. The proposed method involves the combined application of a glassy carbon electrode modified with reduced graphene oxide, chitosan and bismuth film (Bi-rGO-CTS/GCE) via square-wave voltammetry using 0.04 mol L-1 Britton-Robinson buffer solution (pH 4.0). The application of the technique yielded low limit of detection of 24 × 10-9 mol L-1 and linear concentration range of 2.5 × 10-7 to 8.2 × 10-6 mol L-1. The Bi-rGO-CTS/GCE sensor was successfully applied for the detection of 3-methylmorphine in the presence of other compounds, including paracetamol and caffeine. The results obtained also showed that the application of the sensor for 3-methylmorphine detection did not experience any significant interference in the presence of silicon dioxide, povidone, cellulose, magnesium stearate, urea, ascorbic acid, humic acid and croscarmellose. The applicability of the Bi-rGO-CTS/GCE sensor for the detection of 3-methylmorphine was evaluated using synthetic urine, serum, and river water samples through addition and recovery tests, and the results obtained were found to be similar to those obtained for the high-performance liquid chromatography method (HPLC)-used as a reference method. The findings of this study show that the proposed voltammetric method is a simple, fast and highly efficient alternative technique for the detection of 3-methylmorphine in both biological and environmental samples.
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Affiliation(s)
- Ademar Wong
- Institute of Chemistry, State University of São Paulo (UNESP), Araraquara 14801-970, Brazil
| | - Anderson M. Santos
- Department of Chemistry, Federal University of São Carlos (UFSCar), São Carlos 13560-970, Brazil
| | - Camila A. Proença
- Department of Chemistry, Federal University of São Carlos (UFSCar), São Carlos 13560-970, Brazil
| | - Thaísa A. Baldo
- Department of Chemistry, Federal University of São Carlos (UFSCar), São Carlos 13560-970, Brazil
| | - Maria H. A. Feitosa
- Department of Chemistry, Federal University of São Carlos (UFSCar), São Carlos 13560-970, Brazil
| | - Fernando C. Moraes
- Department of Chemistry, Federal University of São Carlos (UFSCar), São Carlos 13560-970, Brazil
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Khairy M. Facile synthesis of nanostructured Prussian blue analogue for high performance symmetric supercapacitor device. J IND ENG CHEM 2022. [DOI: 10.1016/j.jiec.2022.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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