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Casimero C, Smith RB, Davis J. Integration of Riboflavin-Modified Carbon Fiber Mesh Electrode Systems in a 3D-Printed Catheter Hub. MICROMACHINES 2023; 15:79. [PMID: 38258198 PMCID: PMC10818592 DOI: 10.3390/mi15010079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/29/2023] [Revised: 12/27/2023] [Accepted: 12/29/2023] [Indexed: 01/24/2024]
Abstract
BACKGROUND Catheter line infection is a common complication within clinical environments, and there is a pressing need for technological options to aid in reducing the possibility of sepsis. The early identification of contamination could be pivotal in reducing cases and improving outcomes. METHOD A sensing rationale based on a riboflavin-modified electrode system integrated within a modified 3D-printed catheter needle-free connector is proposed, which can monitor changes in pH brought about by bacterial contamination. RESULTS Riboflavin, vitamin B2, is a biocompatible chemical that possesses a redox-active flavin core that is pH dependent. The oxidation peak potential of the adsorbed riboflavin responds linearly to changes in pH with a near-Nernstian behavior of 63 mV/pH unit and is capable of accurately monitoring the pH of an authentic IV infusate. CONCLUSIONS The proof of principle is demonstrated with an electrode-printed hub design offering a valuable foundation from which to explore bacterial interactions within the catheter lumen with the potential of providing an early warning of contamination.
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Affiliation(s)
| | - Robert B. Smith
- Institute for Materials and Investigative Sciences, University of Central Lancashire, Preston PR1 2HE, UK;
| | - James Davis
- School of Engineering, Ulster University, Belfast BT15 1ED, UK;
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McCann C, Gilpin V, Scott C, Pourshahidi LK, Gill CIR, Davis J. Moving towards in pouch diagnostics for ostomy patients: exploiting the versatility of laser induced graphene sensors. JOURNAL OF MATERIALS SCIENCE 2023; 58:14207-14219. [PMID: 37745186 PMCID: PMC10511578 DOI: 10.1007/s10853-023-08881-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 08/18/2023] [Indexed: 09/26/2023]
Abstract
The development of a 3D printed sensor for direct incorporation within stoma pouches is described. Laser induced graphene scribed on either side of polyimide film served as the basis of a 2 electrode configuration that could be integrated within a disposable pouch sensor for the periodic monitoring of ileostomy fluid pH. The graphene sensors were characterised using electron microscopy, Raman spectroscopy, DekTak profilometry with the electrochemical properties investigated using both cyclic and square wave voltammetry. Adsorbed riboflavin was employed as a biocompatible redox probe for the voltammetric measurement of pH. The variation in peak position with pH was found to be linear over pH 3-8 with a sub Nernstian response (43 mV/pH). The adsorbed probe was found to be reversible and exhibited minimal leaching through repeated scanning. The performance of the system was assessed in a heterogeneous bacterial fermentation mixture simulating ileostomy fluid with the pH recorded before and after 96 h incubation. The peak profile in the bacterial medium provided an unambiguous signal free from interference with the calculated pH before and after incubation (pH 5.3 to 3.66) in good agreement with that obtained with commercial pH probes. Graphical abstract Supplementary Information The online version contains supplementary material available at 10.1007/s10853-023-08881-x.
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Affiliation(s)
- Conor McCann
- School of Engineering, Ulster University, Belfast, Northern Ireland
| | - Victoria Gilpin
- School of Engineering, Ulster University, Belfast, Northern Ireland
| | - Cameron Scott
- School of Engineering, Ulster University, Belfast, Northern Ireland
| | | | - Chris. I. R. Gill
- School of Biomedical Sciences, Ulster University, Coleraine, Northern Ireland
| | - James Davis
- School of Engineering, Ulster University, Belfast, Northern Ireland
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Karazan ZM, Roushani M. Selective determination of cadmium and lead ions in different food samples by poly (riboflavin)/carbon black-modified glassy carbon electrode. Food Chem 2023; 423:136283. [PMID: 37187010 DOI: 10.1016/j.foodchem.2023.136283] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2022] [Revised: 04/27/2023] [Accepted: 04/27/2023] [Indexed: 05/17/2023]
Abstract
In this research, a poly (riboflavin)/carbon black-modified glassy carbon electrode (PRF/CB/GCE) is introduced as a novel electrochemical sensor toward Cd2+ and Pb2+ simultaneous measurement in presence of bismuth ions, applying differential pulse anodic stripping voltammetry (DPASV). Regarding the optimized conditions, the linear ranges were achieved from 0.5 to 600 nM for Cd2+ and Pb2+. The detection limit (LOD) was found to be 0.16 nM for Cd2+ and 0.13 nM for Pb2+. In order to perform the technique in real application, the proposed electrode was used to simultaneously detect ions in rice, honey, and vegetable samples with satisfactory recoveries - indicating that the sensor possesses good practicability to determine Cd2+ and Pb2+. Moreover, an atomic absorption spectrometry (AAS) was used in order to detect the concentration of ions as a reference technique in rice, honey, and vegetable samples.
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Affiliation(s)
| | - Mahmoud Roushani
- Department of Chemistry, Faculty of Sciences, Ilam University, Ilam 69315-516, Iran.
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Goethite and riboflavin synergistically enhance Cr(VI) reduction by Shewanella oneidensis MR-1. Biodegradation 2023; 34:155-167. [PMID: 36592293 DOI: 10.1007/s10532-022-10010-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Accepted: 12/14/2022] [Indexed: 01/03/2023]
Abstract
Bioreduction of Cr(VI) is cost-effective and environmentally friendly, however, the slow bioreduction rate limits its application. In this study, the potential synergistic enhancement of Cr(VI) bioreduction by shewanella oneidensis MR-1 (S. oneidensis) with goethite and riboflavin (RF) was investigated. The results showed that the S. oneidensis reaction system reduce 29.2% of 20 mg/L Cr(VI) after 42 h reaction, while the S. oneidensis/goethite/RF reaction system increased the Cr(VI) reduction rate to 87.74%. RF as an efficient electron shuttle and Fe(II) from goethite bioreduction were identified as the crucial components in Cr(VI) reduction. XPS analysis showed that the final precipitates of Cr(VI) reduction were Cr(CH3C(O)CHC(O)CH3)3 and Cr2O3 and adhered to the bacterial cell surface. In this process, the microbial surface functional groups such as hydroxyl and carboxyl groups participated in the adsorption and reduction of Cr(VI). Meanwhile, an increase in cytochrome c led to an increase in electron transfer system activity (ETSA), causing a significant enhancement in extracellular electron transfer efficiency. This study provides insight into the mechanism of Cr(VI) reduction in a complex environment where microorganisms, iron minerals and RF coexist, and the synergistic treatment method of Fe(III) minerals and RF has great potential application for Cr(VI) detoxification in aqueous environment.
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Shell-Isolated Nanoparticle-Enhanced Raman Spectroscopy for Probing Riboflavin on Graphene. MATERIALS 2022; 15:ma15051636. [PMID: 35268866 PMCID: PMC8911488 DOI: 10.3390/ma15051636] [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: 01/26/2022] [Revised: 02/18/2022] [Accepted: 02/19/2022] [Indexed: 02/01/2023]
Abstract
Graphene research and technology development requires to reveal adsorption processes and understand how the defects change the physicochemical properties of the graphene-based systems. In this study, shell-isolated nanoparticle-enhanced Raman spectroscopy (SHINERS) and graphene-enhanced Raman spectroscopy (GERS) coupled with density functional theory (DFT) modeling were applied for probing the structure of riboflavin adsorbed on single-layer graphene substrate grown on copper. Intense and detailed vibrational signatures of the adsorbed riboflavin were revealed by SHINERS method. Based on DFT modeling and detected downshift of prominent riboflavin band at 1349 cm−1 comparing with the solution Raman spectrum, π-stacking interaction between the adsorbate and graphene was confirmed. Different spectral patterns from graphene-riboflavin surface were revealed by SHINERS and GERS techniques. Contrary to GERS method, SHINERS spectra revealed not only ring stretching bands but also vibrational features associated with ribityl group of riboflavin and D-band of graphene. Based on DFT modeling it was suggested that activation of D-band took place due to riboflavin induced tilt and distortion of graphene plane. The ability to explore local perturbations by the SHINERS method was highlighted. We demonstrated that SHINERS spectroscopy has a great potential to probe adsorbed molecules at graphene.
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Prinith NS, Manjunatha JG, Tigari G, ALOthman ZA, Alanazi AM, Pandith A. Mechanistic Insights into the Voltammetric Determination of Riboflavin at Poly (Serine) Modified Graphite and Carbon Nanotube Composite Paste Electrode. ChemistrySelect 2021. [DOI: 10.1002/slct.202103184] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Nambudumada S. Prinith
- 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
| | - Girish Tigari
- Department of Chemistry FMKMC College Constituent College of Mangalore University, Madikeri, Karnataka India
| | - Zeid A. ALOthman
- Department of Chemistry College of Science King Saud University Riyadh 11451 Saudi Arabia
| | - Amer M. Alanazi
- Pharmaceutical Chemistry Department College of Pharmacy King Saud University Riyadh 11451 Saudi Arabia
| | - Anup Pandith
- Department of Chemistry Kyung Hee University, Seoul Campus 02447 Republic of Korea
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Pauliukaite R, Voitechovič E. Multisensor Systems and Arrays for Medical Applications Employing Naturally-Occurring Compounds and Materials. SENSORS (BASEL, SWITZERLAND) 2020; 20:E3551. [PMID: 32585936 PMCID: PMC7349305 DOI: 10.3390/s20123551] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/21/2020] [Revised: 06/17/2020] [Accepted: 06/20/2020] [Indexed: 12/14/2022]
Abstract
The significant improvement of quality of life achieved over the last decades has stimulated the development of new approaches in medicine to take into account the personal needs of each patient. Precision medicine, providing healthcare customization, opens new horizons in the diagnosis, treatment and prevention of numerous diseases. As a consequence, there is a growing demand for novel analytical devices and methods capable of addressing the challenges of precision medicine. For example, various types of sensors or their arrays are highly suitable for simultaneous monitoring of multiple analytes in complex biological media in order to obtain more information about the health status of a patient or to follow the treatment process. Besides, the development of sustainable sensors based on natural chemicals allows reducing their environmental impact. This review is concerned with the application of such analytical platforms in various areas of medicine: analysis of body fluids, wearable sensors, drug manufacturing and screening. The importance and role of naturally-occurring compounds in the development of electrochemical multisensor systems and arrays are discussed.
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Affiliation(s)
- Rasa Pauliukaite
- Department of Nanoengineering, Center for Physical Sciences and Technology, Savanoriu Ave. 231, LT-02300 Vilnius, Lithuania;
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Sensitive voltammetric determination of riboflavin in pharmaceutical and biological samples using FSN-Zonyl-Nafion modified carbon paste electrode. Microchem J 2020. [DOI: 10.1016/j.microc.2020.104729] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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Hareesha N, Manjunatha JG. Elevated and rapid voltammetric sensing of riboflavin at poly(helianthin dye) blended carbon paste electrode with heterogeneous rate constant elucidation. JOURNAL OF THE IRANIAN CHEMICAL SOCIETY 2020. [DOI: 10.1007/s13738-020-01876-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Laurinavičius L, Radzevič A, Ignatjev I, Niaura G, Vitkutė K, Širšinaitis T, Trusovas R, Pauliukaite R. Investigation of electrochemical polymerisation of L-lysine and application for immobilisation of functionalised graphene as platform for electrochemical sensing. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2019.01.079] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Zou L, Wu X, Huang Y, Ni H, Long ZE. Promoting Shewanella Bidirectional Extracellular Electron Transfer for Bioelectrocatalysis by Electropolymerized Riboflavin Interface on Carbon Electrode. Front Microbiol 2019; 9:3293. [PMID: 30697199 PMCID: PMC6340934 DOI: 10.3389/fmicb.2018.03293] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 12/18/2018] [Indexed: 11/13/2022] Open
Abstract
The extracellular electron transfer (EET) that connects the intracellular metabolism of electroactive microorganisms to external electron donors/acceptors, is the foundation to develop diverse microbial electrochemical technologies. For a particular microbial electrochemical device, the surface chemical property of an employed electrode material plays a crucial role in the EET process owing to the direct and intimate biotic-abiotic interaction. The functional modification of an electrode surface with redox mediators has been proposed as an effectual approach to promote EET, but the underlying mechanism remains unclear. In this work, we investigated the enhancement of electrochemically polymerized riboflavin interface on the bidirectional EET of Shewanella putrefaciens CN32 for boosting bioelectrocatalytic ability. An optimal polyriboflavin functionalized carbon cloth electrode achieved about 4.3-fold output power density (∼707 mW/m2) in microbial fuel cells and 3.7-fold cathodic current density (∼0.78 A/m2) for fumarate reduction in three-electrode cells compared to the control, showing great increases in both outward and inward EET rates. Likewise, the improvement was observed for polyriboflavin-functionalized graphene electrodes. Through comparison between wild-type strain and outer-membrane cytochrome (MtrC/UndA) mutant, the significant improvements were suggested to be attributed to the fast interfacial electron exchange between the polyriboflavin interface with flexible electrochemical activity and good biocompatibility and the outer-membrane cytochromes of the Shewanella strain. This work not only provides an effective approach to boost microbial electrocatalysis for energy conversion, but also offers a new demonstration of broadening the applications of riboflavin-functionalized interface since the widespread contribution of riboflavin in various microbial EET pathways together with the facile electropolymerization approach.
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Affiliation(s)
| | | | | | | | - Zhong-er Long
- College of Life Science, Jiangxi Normal University, Nanchang, China
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12
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Casimero C, McConville A, Fearon JJ, Lawrence CL, Taylor CM, Smith RB, Davis J. Sensor systems for bacterial reactors: A new flavin-phenol composite film for the in situ voltammetric measurement of pH. Anal Chim Acta 2018; 1027:1-8. [PMID: 29866258 DOI: 10.1016/j.aca.2018.04.053] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2018] [Revised: 04/19/2018] [Accepted: 04/20/2018] [Indexed: 11/15/2022]
Abstract
Monitoring pH within microbial reactors has become an important requirement across a host of applications ranging from the production of functional foods (probiotics) to biofuel cell systems. An inexpensive and scalable composite sensor capable of monitoring the pH within the demanding environments posed by microbial reactors has been developed. A custom designed flavin derivative bearing an electropolymerisable phenol monomer was used to create a redox film sensitive to pH but free from the interferences that can impede conventional pH systems. The film was integrated within a composite carbon-fibre-polymer laminate and was shown to exhibit Nernstian behaviour (55 mV/pH) with minimal drift and robust enough to operate within batch reactors.
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Affiliation(s)
- Charnete Casimero
- School of Engineering, Ulster University, Jordanstown, Northern Ireland, BT37 0QB, UK
| | - Aaron McConville
- School of Engineering, Ulster University, Jordanstown, Northern Ireland, BT37 0QB, UK
| | - John-Joe Fearon
- School of Engineering, Ulster University, Jordanstown, Northern Ireland, BT37 0QB, UK
| | - Clare L Lawrence
- Centre for Materials Science, Physical Sciences and Computing, University of Central Lancashire, Preston, PR1 2HE, UK
| | - Charlotte M Taylor
- School of Pharmacy and Biomedical Sciences, Faculty of Clinical and Biomedical Sciences, University of Central Lancashire, Preston, PR1 2HE, UK
| | - Robert B Smith
- Centre for Materials Science, Physical Sciences and Computing, University of Central Lancashire, Preston, PR1 2HE, UK
| | - James Davis
- School of Engineering, Ulster University, Jordanstown, Northern Ireland, BT37 0QB, UK.
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Celiešiūtė R, Radzevič A, Žukauskas A, Vaitekonis Š, Pauliukaite R. A Strategy to Employ Polymerised Riboflavin in the Development of Electrochemical Biosensors. ELECTROANAL 2017. [DOI: 10.1002/elan.201700218] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Raimonda Celiešiūtė
- Department of Material Science and Technology; Center for Physical Sciences and Technology; Sauletekio Ave. 3 LT-10222 Vilnius Lithuania
- Department of Nanoengineering; Center for Physical Sciences and Technology; Savanoriu Ave. 231 LT-02300 Vilnius Lithuania
| | - Aneta Radzevič
- Department of Nanoengineering; Center for Physical Sciences and Technology; Savanoriu Ave. 231 LT-02300 Vilnius Lithuania
| | - Airidas Žukauskas
- Department of Nanoengineering; Center for Physical Sciences and Technology; Savanoriu Ave. 231 LT-02300 Vilnius Lithuania
- Department of Laser Technologies; Center for Physical Sciences and Technology; Savanoriu Ave. 231 LT-02300 Vilnius Lithuania
| | - Šarūnas Vaitekonis
- Department of Nanoengineering; Center for Physical Sciences and Technology; Savanoriu Ave. 231 LT-02300 Vilnius Lithuania
| | - Rasa Pauliukaite
- Department of Nanoengineering; Center for Physical Sciences and Technology; Savanoriu Ave. 231 LT-02300 Vilnius Lithuania
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