1
|
Jain S, Sonia J, Prashanth S, Sanjeeva SG, Prasad KS, Johnson RP. Polytyrosine-Coated Paper Electrode for Sensitive and Selective Sensing of NADH. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2024; 40:13144-13154. [PMID: 38869442 DOI: 10.1021/acs.langmuir.4c01125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2024]
Abstract
Reduced nicotinamide adenine dinucleotide (NADH)-detecting electrochemical sensors are attractive in monitoring and diagnosing various physiological disorders of NADH abnormalities. The NADH detection methods using conventional electrodes are challenging due to slow electron transfer and fouling effect. Interestingly, paper-based flexible and disposable electrodes (PE) are superior for sensing biomolecules through simple detection procedures with excellent sensitivity and selectivity. Herein, to construct a conducting polypeptide-modified paper electrode, initially, polytyrosine (PTyr) is synthesized from l-tyrosine N-carboxy anhydride through ring-opening polymerization, and PTyr is drop-coated on the PE. The PTyr-modified paper electrode (PMPE) demonstrated excellent electrochemical properties and facilitated the electrooxidation of NADH at a lower potential of 576 mV. The PMPE displayed a linear detection between 25 and 145 μM of NADH concentration, with a lower detection limit of 0.340 μM. Under ideal circumstances, the sensor developed displayed an excellent NADH detection capability without interference with the most common electroactive species, ascorbic acid. The PMPE facilitates good electrocatalytic activity toward NADH, which can also be employed as a substrate material for biofuel cells.
Collapse
Affiliation(s)
- Supriya Jain
- Polymer Nanobiomaterial Research Laboratory, Smart Materials and Devices, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore 575 018, India
| | - Joseph Sonia
- Nanomaterial Research Laboratory (NMRL), Smart Materials and Devices, Yenepoya Research Centre, Yenepoya (Deemed to be University), Deralakatte, Mangalore 575 018, India
| | - Sharmila Prashanth
- Nanomaterial Research Laboratory (NMRL), Smart Materials and Devices, Yenepoya Research Centre, Yenepoya (Deemed to be University), Deralakatte, Mangalore 575 018, India
| | - Sandesh G Sanjeeva
- Polymer Nanobiomaterial Research Laboratory, Smart Materials and Devices, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore 575 018, India
| | - K Sudhakara Prasad
- Nanomaterial Research Laboratory (NMRL), Smart Materials and Devices, Yenepoya Research Centre, Yenepoya (Deemed to be University), Deralakatte, Mangalore 575 018, India
- Centre for Nutrition Studies, Yenepoya (Deemed to be University), Deralakatte, Mangalore 575 018, India
| | - Renjith P Johnson
- Polymer Nanobiomaterial Research Laboratory, Smart Materials and Devices, Yenepoya Research Centre, Yenepoya (Deemed to be University), Mangalore 575 018, India
| |
Collapse
|
2
|
Fall I, Doumèche B, Abdellaoui S, Rémond C, Rakotoarivonina H, Ochs M. Paper-based electrodes as a tool for detecting ligninolytic enzymatic activities. Bioelectrochemistry 2024; 156:108609. [PMID: 37995505 DOI: 10.1016/j.bioelechem.2023.108609] [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: 09/16/2022] [Revised: 11/15/2023] [Accepted: 11/15/2023] [Indexed: 11/25/2023]
Abstract
Lignin is the most important natural source of aromatic compounds. The valorisation of lignin into aromatics requires fractionation steps that can be catalysed by ligninolytic enzymes. However, one of the main limitations of biological lignin fractionation is the low efficiency of biocatalysts; it is therefore crucial to enhance or to identify new ligninolytic enzymes. Currently, the screening of ligninolytic activities on lignin polymers represents a technological bottenleck and hinders the characterization and the discovery of efficient ligninolytic biocatalysts. An efficient and fast method for the measurement of such enzymatic activities is therefore required. In this work, we present a new electrochemical tool based on lignin-coated paper electrodes for the detection and the characterization of ligninolytic activity. The suitability of this method is demonstrated using a catalase-peroxidase isolated from Thermobacillus xylanilyticus.
Collapse
Affiliation(s)
- Issa Fall
- Université de Reims Champagne-Ardenne, INRAE, FARE, UMR A 614, AFERE, Reims, France
| | - Bastien Doumèche
- Université Lyon, Université Claude Bernard Lyon 1, CNRS, INSA, CPE-Lyon, UMR 5246, ICBMS (Institut de Chimie et Biochimie Moléculaires et Supramoléculaires), F-69622, Villeurbanne, France
| | - Sofiene Abdellaoui
- Université de Reims Champagne-Ardenne, INRAE, FARE, UMR A 614, AFERE, Reims, France
| | - Caroline Rémond
- Université de Reims Champagne-Ardenne, INRAE, FARE, UMR A 614, AFERE, Reims, France
| | | | - Marjorie Ochs
- Université Lyon, Université Claude Bernard Lyon 1, CNRS, INSA, CPE-Lyon, UMR 5246, ICBMS (Institut de Chimie et Biochimie Moléculaires et Supramoléculaires), F-69622, Villeurbanne, France.
| |
Collapse
|
3
|
du Plooy J, Jahed N, Iwuoha E, Pokpas K. Advances in paper-based electrochemical immunosensors: review of fabrication strategies and biomedical applications. ROYAL SOCIETY OPEN SCIENCE 2023; 10:230940. [PMID: 38034121 PMCID: PMC10685120 DOI: 10.1098/rsos.230940] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Accepted: 11/03/2023] [Indexed: 12/02/2023]
Abstract
Cellulose paper-based sensing devices have shown promise in addressing the accuracy, sensitivity, selectivity, analysis time and cost of current disease diagnostic tools owing to their excellent physical and physiochemical properties, high surface-area-to-volume ratio, strong adsorption capabilities, ease of chemical functionalization for immobilization, biodegradability, biocompatibility and liquid transport by simple capillary action. This review provides a comprehensive overview of recent advancements in the field of electrochemical immunosensing for various diseases, particularly in underdeveloped regions and globally. It highlights the significant progress in fabrication techniques, fluid control, signal transduction and paper substrates, shedding light on their respective advantages and disadvantages. The primary objective of this review article is to compile recent advances in the field of electrochemical immunosensing for the early detection of diseases prevalent in underdeveloped regions and globally, including cancer biomarkers, bacteria, proteins and viruses. Herein, the critical need for new, simplistic early detection strategies to combat future disease outbreaks and prevent global pandemics is addressed. Moreover, recent advancements in fabrication techniques, including lithography, printing and electrodeposition as well as device orientation, substrate type and electrode modification, have highlighted their potential for enhancing sensitivity and accuracy.
Collapse
Affiliation(s)
- Jarid du Plooy
- SensorLab, Department of Chemistry, University of the Western Cape, Robert Sobukwe Road, Bellville 7535, South Africa
| | - Nazeem Jahed
- SensorLab, Department of Chemistry, University of the Western Cape, Robert Sobukwe Road, Bellville 7535, South Africa
| | - Emmanuel Iwuoha
- SensorLab, Department of Chemistry, University of the Western Cape, Robert Sobukwe Road, Bellville 7535, South Africa
| | - Keagan Pokpas
- SensorLab, Department of Chemistry, University of the Western Cape, Robert Sobukwe Road, Bellville 7535, South Africa
| |
Collapse
|
4
|
Abdelaziz AA, Kamer AMA, Al-Monofy KB, Al-Madboly LA. Pseudomonas aeruginosa's greenish-blue pigment pyocyanin: its production and biological activities. Microb Cell Fact 2023; 22:110. [PMID: 37291560 DOI: 10.1186/s12934-023-02122-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2023] [Accepted: 05/25/2023] [Indexed: 06/10/2023] Open
Abstract
A subject of great interest is the bioprospecting of microorganisms and their bioactive byproducts, such as pigments. Microbial pigments have various benefits, including being safe to use due to their natural makeup, having therapeutic effects, and being produced all year round, regardless of the weather or location. Pseudomonas aeruginosa produces phenazine pigments that are crucial for interactions between Pseudomonas species and other living things. Pyocyanin pigment, which is synthesized by 90-95% of P. aeruginosa, has potent antibacterial, antioxidant, and anticancer properties. Herein, we will concentrate on the production and extraction of pyocyanin pigment and its biological use in different areas of biotechnology, engineering, and biology.
Collapse
Affiliation(s)
- Ahmed A Abdelaziz
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Amal M Abo Kamer
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| | - Khaled B Al-Monofy
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Tanta University, Tanta, Egypt.
| | - Lamiaa A Al-Madboly
- Department of Pharmaceutical Microbiology, Faculty of Pharmacy, Tanta University, Tanta, Egypt
| |
Collapse
|
5
|
Swetha PDP, Nikitha A, Shenoy MM, Shim YB, Prasad KS. Ni/Ni(OH) 2-rGO nanocomposites sensor for the detection of long forgotten mycotoxin, xanthomegnin. Talanta 2023; 253:123953. [PMID: 36179558 DOI: 10.1016/j.talanta.2022.123953] [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: 06/21/2022] [Revised: 09/10/2022] [Accepted: 09/17/2022] [Indexed: 12/13/2022]
Abstract
Xanthomegnin, a known fungal toxin, secondary metabolite, and pigment diffuses from the dermatophytes has gained attention as local virulence factor because of the mutagenicity, toxicity, cytocidal, and immunosuppressive properties. Not only as a dermatophyte in skin related disorders, the production of xanthomegnin is implicated as a powerful diagnostic marker in patients suffering from ocular mycoses. Incidentally also attributed to death in livestock's majorly by exposing themselves to food-borne fungi like Aspergillus and Penicillium. The production of xanthomegnin in dermetophytic species Trichophyton rubrum, found commonly in infected skin and nails. In this study nickel/nickel hydroxide nanoparticles decorated reduced graphene oxide (Ni/Ni(OH)2-rGO) modified glassy carbon electrode has been successfully used for non-enzymatic detection of xanthomegnin. The Ni/Ni(OH)2-rGO composites were synthesized through a simple microwave assisted technique with less harmful reducing agent. The UV-visible spectroscopy (UV-vis), X-ray photoelectron spectroscopy (XPS), Scanning electron microscopy - energy dispersive X-ray spectroscopy (SEM-EDS), and electrochemical investigations demonstrated the robust formation of the sensor. The sensor exhibited improved electrochemical properties with enhanced electrochemical active area and excellent electrochemical behavior towards xanthomegnin detection with a limit of detection of 0.12 μM. The selectivity, stability, and analytical recovery studies proved the potential use of the sensor for the detection of xanthomegnin in real samples. Further, the sensor successfully detected xanthomegnin produced by the Trichophyton rubrum, the most common superficial fungus, accounting for at least 60% of all superficial fungal infections in humans. Validation studies showed satisfiable and quantifiable amount of xanthomegnin in comparison with common bench mark UV-Vis studies meant for fungal mycotoxin detection.
Collapse
Affiliation(s)
- P D Priya Swetha
- Nanomaterial Research Laboratory (NMRL), Nano Division, Yenepoya Research Centre, Yenepoya (Deemed to be University), Deralakatte, Mangalore, 575 018, India
| | - A Nikitha
- Department of Dermatology,Venereology and Leprosy, Yenepoya Medical College, Deralakatte, Mangalore, 575018, India
| | - M Manjunath Shenoy
- Department of Dermatology,Venereology and Leprosy, Yenepoya Medical College, Deralakatte, Mangalore, 575018, India
| | - Yoon-Bo Shim
- Department of Chemistry and Institute of Biophysio Sensor Technology, Pusan National University, Busan, 46241, Republic of Korea
| | - K Sudhakara Prasad
- Nanomaterial Research Laboratory (NMRL), Nano Division, Yenepoya Research Centre, Yenepoya (Deemed to be University), Deralakatte, Mangalore, 575 018, India; Centre for Nutrition Studies, Yenepoya (Deemed to be University), Deralakatte, Mangalore, 575018, India.
| |
Collapse
|
6
|
Li WR, Zeng TH, Zhang ZQ, Shi QS, Xie XB. Geraniol attenuates virulence factors by inhibiting quorum sensing of Pseudomonas aeruginosa. Front Microbiol 2023; 14:1190619. [PMID: 37180245 PMCID: PMC10172488 DOI: 10.3389/fmicb.2023.1190619] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Accepted: 04/06/2023] [Indexed: 05/16/2023] Open
Abstract
Pseudomonas aeruginosa is a ubiquitous opportunistic pathogen that can cause severe respiratory tract infections. Geraniol, a chemical component of essential oils, has antimicrobial and anti-inflammatory activities, along with low toxicity. However, the effect and mechanism of geraniol against P. aeruginosa virulence factors are rarely studied. In this study, we investigated the quorum sensing (QS) inhibitory effects and mechanisms of geraniol against P. aeruginosa PAO1, using physiological and biochemical techniques, quantitative reverse transcription polymerase chain reaction, and transcriptomics. Geraniol slightly affected P. aeruginosa PAO1 growth, prolonged the lag phase, and delayed growth periods in a concentration-dependent manner. Geraniol inhibited three QS systems of P. aeruginosa, las, rhl, and pqs by suppressing the expression level of their key genes, including the three signal synthetase encoding genes of lasI, rhlI, and pqsABCDEH, and the corresponding signal receptor encoding genes of lasR, rhlR, and pqsR. Geraniol also suppressed certain virulence genes regulated by these three QS systems, including rhlABC, lasAB, lecAB, phzABMS, and pelABG, resulting in the attenuation of the related virulence factors, rhamnolipids, exoprotease LasA, elastase, lectin, pyocyanin, and biofilm. In conclusion, geraniol can suppress the virulence factors of P. aeruginosa PAO1 by inhibiting the three QS systems of las, rhl, and pqs. This study is significant for improving the treatment of bacterial infections caused by P. aeruginosa.
Collapse
|
7
|
McLean C, Brown K, Windmill J, Dennany L. Innovations In Point-Of-Care Electrochemical Detection Of Pyocyanin. J Electroanal Chem (Lausanne) 2022. [DOI: 10.1016/j.jelechem.2022.116649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|