1
|
Chopade RL, Pandit PP, Nagar V, Aseri V, Mavry B, Sharma A, Singh A, Verma RK, Awasthi G, Awasthi KK, Sankhla MS. Carbon nanotube-based nano-biosensors for detecting heavy metals in the aquatic environment. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2023; 30:11199-11209. [PMID: 36509954 DOI: 10.1007/s11356-022-24388-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2022] [Accepted: 11/20/2022] [Indexed: 06/17/2023]
Abstract
The identification of harmful metal ions in aquatic environments is a global concern since these contaminants can have serious consequences for plants, animals, humans, and ecosystems. A biosensor is a type of analytical equipment that combines a biological recognition element and a physical transducer to detect biological signals to produce a detectable indication proportionate to the concentration of the samples being analysed. The analyte spreads from the fluid to the biosensor's superficial. The analyte responds precisely and competently with the biosensor's biological component. The physicochemical properties of the transducer surface change as a result of this process. The visual or electric properties of the transducer surface alter as a result of this. The signal that is detected is an electrical signal. With the help of carbon-based nano-biosensors, metals from the aquatic environment can easily be detected, which is much simpler, less time-consuming, and less expensive as well.
Collapse
Affiliation(s)
- Rushikesh L Chopade
- Department of Forensic Science, Vivekananda Global University, Jaipur, Rajasthan, India
| | - Pritam P Pandit
- Department of Forensic Science, Vivekananda Global University, Jaipur, Rajasthan, India
| | - Varad Nagar
- Department of Forensic Science, Vivekananda Global University, Jaipur, Rajasthan, India
| | - Vinay Aseri
- Department of Forensic Science, Vivekananda Global University, Jaipur, Rajasthan, India
| | - Badal Mavry
- Department of Forensic Science, Vivekananda Global University, Jaipur, Rajasthan, India
| | - Anuj Sharma
- Department of Forensic Science, Vivekananda Global University, Jaipur, Rajasthan, India
| | - Apoorva Singh
- Department of Forensic Science, Vivekananda Global University, Jaipur, Rajasthan, India
| | - Rohit Kumar Verma
- Dr. APJ Abdul Kalam Institute of Forensic Science & Criminology, Bundelkhand University, Uttar Pradesh, Jhansi, India
| | - Garima Awasthi
- Department of Life Sciences, Vivekananda Global University, Jaipur, Rajasthan, India
| | - Kumud Kant Awasthi
- Department of Forensic Science, Vivekananda Global University, Jaipur, Rajasthan, India
- Dr. APJ Abdul Kalam Institute of Forensic Science & Criminology, Bundelkhand University, Uttar Pradesh, Jhansi, India
- Department of Life Sciences, Vivekananda Global University, Jaipur, Rajasthan, India
| | - Mahipal Singh Sankhla
- Department of Forensic Science, Vivekananda Global University, Jaipur, Rajasthan, India.
| |
Collapse
|
2
|
Basumatary D, Saikia S, Yadav HS, Yadav M. In silico analysis of peroxidase from Luffa acutangula. 3 Biotech 2023; 13:25. [PMID: 36575654 PMCID: PMC9789927 DOI: 10.1007/s13205-022-03432-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2022] [Accepted: 12/07/2022] [Indexed: 12/26/2022] Open
Abstract
Peroxidases are oxidoreductase enzymes that widely gained attention as biocatalysts for their robust catalytic activity, specificity, and regioselective functionality for phenolic compounds. The study of molecular aspects of peroxidases is as crucial as that of the physicochemical aspects. A bioinformatics approach is utilized in this study to investigate the structural aspects and functions of luffa peroxidase (LPrx) from Luffa acutangula. The evolutionary relationship of LPrx with other class III peroxidases was studied by constructing a neighbour-joining phylogenetic tree. An analysis of the phylogenetic tree revealed that plant peroxidases share a common ancestor. The gene ontology term showed that LPrx had a molecular functionality of the oxidation-reduction process, heme binding and peroxidase-like activity, and the biological function of hydrogen peroxide scavenging activity. The enzyme-ligand interactions were studied from a catalytic point of view using the molecular docking technique. The molecular docking was carried out with LPrx as a receptor and guaiacol, m-cresol, p-cresol, catechol, quinol, pyrogallol, 2,4-dimethoxyphenol, gallic acid, aniline, and o-phenylenediamine as ligands. The results presented in the current communication will have a significant implication in proteomics, biochemistry, biotechnology, and the potential applications of peroxidases in the biotransformations of organic compounds. Supplementary Information The online version contains supplementary material available at 10.1007/s13205-022-03432-8.
Collapse
Affiliation(s)
- Dencil Basumatary
- Department of Chemistry, North Eastern Regional Institute of Science and Technology, Nirjuli, Arunachal Pradesh 791109 India
| | - Shilpa Saikia
- Department of Chemistry, North Eastern Regional Institute of Science and Technology, Nirjuli, Arunachal Pradesh 791109 India
| | - Hardeo Singh Yadav
- Department of Chemistry, North Eastern Regional Institute of Science and Technology, Nirjuli, Arunachal Pradesh 791109 India
| | - Meera Yadav
- Department of Chemistry, North Eastern Regional Institute of Science and Technology, Nirjuli, Arunachal Pradesh 791109 India
| |
Collapse
|
3
|
Okpara EC, Fayemi OE, Wojuola OB, Onwudiwe DC, Ebenso EE. Electrochemical detection of selected heavy metals in water: a case study of African experiences. RSC Adv 2022; 12:26319-26361. [PMID: 36275116 PMCID: PMC9475415 DOI: 10.1039/d2ra02733j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/29/2022] [Accepted: 08/30/2022] [Indexed: 11/21/2022] Open
Abstract
The safety of water resources throughout the globe has been compromised by various human activities and climate change over the last decades. Consequently, the world is currently confronted with a severe shortage of water supply and a water safety crisis, amidst a growing population. With poor environmental regulations, indiscriminate budding of urban slums, poverty, and a lack of basic knowledge of hygiene and sanitation, the African water supply has been critically threatened by different organic and inorganic contaminants, which results in several health issues. Inorganic pollutants such as heavy metals are particularly of interest because they are mostly stable and non-biodegradable. Therefore, they are not easily removed from water. In different parts of the continent, the concentration of heavy metals in drinking water far exceeds the permissible level recommended by the World Health Organization (WHO). Worse still, this problem is expected to increase with growing population, industrialization, urbanization, and, of course, corruption of government and local officials. Most of the African population is ignorant of the standards of safe water. In addition, the populace lack access to affordable and reliable technologies and tools that could be used in the quantification of these pollutants. This problem is not only applicable to domestic, but also to commercial, communal, and industrial water sources. Hence, a global campaign has been launched to ensure constant assessment of the presence of these metals in the environment and to promote awareness of dangers associated with unsafe exposure to them. Various conventional spectroscopic heavy metal detection techniques have been used with great success across the world. However, such techniques suffer from some obvious setbacks, such as the cost of procurement and professionalism required to operate them, which have limited their applications. This paper, therefore, reviews the condition of African water sources, health implications of exposure to heavy metals, and the approaches explored by various indigenous electrochemists, to provide a fast, affordable, sensitive, selective, and stable electrochemical sensors for the quantification of the most significant heavy metals in our water bodies.
Collapse
Affiliation(s)
- Enyioma C Okpara
- Department of Physics, School of Physical and Chemical Sciences, Faculty of Natural and Agricultural Sciences, North-West University (Mafikeng Campus) Private Bag X2046 Mmabatho 2735 South Africa
| | - Omolola E Fayemi
- Department of Chemistry, School of Physical and Chemical Sciences, Faculty of Natural and Agricultural Sciences, North-West University (Mafikeng Campus) Private Bag X2046 Mmabatho 2735 South Africa
- Material Science Innovation and Modelling (MaSIM) Research Focus Area, Faculty of Natural and Agricultural Sciences, North-West University (Mafikeng Campus) Private Bag X2046 Mmabatho 2735 South Africa
| | - Olanrewaju B Wojuola
- Department of Physics, School of Physical and Chemical Sciences, Faculty of Natural and Agricultural Sciences, North-West University (Mafikeng Campus) Private Bag X2046 Mmabatho 2735 South Africa
| | - Damian C Onwudiwe
- Department of Chemistry, School of Physical and Chemical Sciences, Faculty of Natural and Agricultural Sciences, North-West University (Mafikeng Campus) Private Bag X2046 Mmabatho 2735 South Africa
- Material Science Innovation and Modelling (MaSIM) Research Focus Area, Faculty of Natural and Agricultural Sciences, North-West University (Mafikeng Campus) Private Bag X2046 Mmabatho 2735 South Africa
| | - Eno E Ebenso
- College of Science, Engineering and Technology, University of South Africa Johannesburg 1710 South Africa
| |
Collapse
|
4
|
Karthik V, Karuna B, Kumar PS, Saravanan A, Hemavathy RV. Development of lab-on-chip biosensor for the detection of toxic heavy metals: A review. CHEMOSPHERE 2022; 299:134427. [PMID: 35358561 DOI: 10.1016/j.chemosphere.2022.134427] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/11/2021] [Revised: 03/09/2022] [Accepted: 03/23/2022] [Indexed: 06/14/2023]
Abstract
Recently, a decrease in water availability and quality has been raised due to rapid industrialization, unsustainable agricultural activities and anthropogenic activities. Heavy metals are considered significant pollutants in the water environment, cause environmental hazards and health effects to humans. For monitoring water contaminants utilized different conventional techniques. Still, they have some drawbacks, such as cost expensive, ecological issues, and processing time, requiring technicians and researchers to operate them effectively. Biosensors have become reasonable devices for screening and identifying environmental contaminants because of their different benefits contrasted with other detecting techniques. This review summarizes the toxic effect of heavy metal and their source, occurrence. A detailed discussion is provided on the heavy metal recognition materials for detecting heavy metals in wastewater. Lab on chip (LOC) is an emerging micro-electrical mechanical system (MEMS) device that intakes liquid and makes it move through the micro-channels, to accomplish fast, cost-effective and profoundly sensitive analysis with significant yield. LOC also provided a discussion on numerous laboratory functions on a single platform. This article attempts to discuss the detection of heavy metals using lab on a chip by suitable recognition materials. Further, the design and fabrication mechanism and their recognition abilities of LOC were also reviewed. The review mainly focuses on the application of LOC biosensors, pros, and cons, and suggests a roadmap towards future development to enhance the practical use in pollutant monitoring.
Collapse
Affiliation(s)
- V Karthik
- Department of Industrial Biotechnology, Government College of Technology, Coimbatore, India
| | - B Karuna
- Department of Industrial Biotechnology, Government College of Technology, Coimbatore, India
| | - P Senthil Kumar
- Department of Chemical Engineering, Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India; Centre of Excellence in Water Research (CEWAR), Sri Sivasubramaniya Nadar College of Engineering, Chennai, 603110, India.
| | - A Saravanan
- Department of Energy and Environmental Engineering, Saveetha School of Engineering, SIMATS, Chennai, 602105, India
| | - R V Hemavathy
- Department of Biotechnology, Rajalakshmi Engineering College, Chennai, 602105, India
| |
Collapse
|
5
|
Mukherjee S, Bhattacharyya S, Ghosh K, Pal S, Halder A, Naseri M, Mohammadniaei M, Sarkar S, Ghosh A, Sun Y, Bhattacharyya N. Sensory development for heavy metal detection: A review on translation from conventional analysis to field-portable sensor. Trends Food Sci Technol 2021. [DOI: 10.1016/j.tifs.2021.01.062] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
|
6
|
Ivanov YD, Pleshakova TO, Shumov ID, Kozlov AF, Valueva AA, Ivanova IA, Ershova MO, Larionov DI, Repnikov VV, Ivanova ND, Tatur VY, Stepanov IN, Ziborov VS. AFM and FTIR Investigation of the Effect of Water Flow on Horseradish Peroxidase. Molecules 2021; 26:E306. [PMID: 33435278 PMCID: PMC7826892 DOI: 10.3390/molecules26020306] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2020] [Revised: 01/04/2021] [Accepted: 01/05/2021] [Indexed: 11/17/2022] Open
Abstract
Atomic force microscopy (AFM)-based fishing is a promising method for the detection of low-abundant proteins. This method is based on the capturing of the target proteins from the analyzed solution onto a solid substrate, with subsequent counting of the captured protein molecules on the substrate surface by AFM. Protein adsorption onto the substrate surface represents one of the key factors determining the capturing efficiency. Accordingly, studying the factors influencing the protein adsorbability onto the substrate surface represents an actual direction in biomedical research. Herein, the influence of water motion in a flow-based system on the protein adsorbability and on its enzymatic activity has been studied with an example of horseradish peroxidase (HRP) enzyme by AFM, attenuated total reflection Fourier-transform infrared spectroscopy (ATR-FTIR) and conventional spectrophotometry. In the experiments, HRP solution was incubated in a setup modeling the flow section of a biosensor communication. The measuring cell with the protein solution was placed near a coiled silicone pipe, through which water was pumped. The adsorbability of the protein onto the surface of the mica substrate has been studied by AFM. It has been demonstrated that incubation of the HRP solution near the coiled silicone pipe with flowing water leads to an increase in its adsorbability onto mica. This is accompanied by a change in the enzyme's secondary structure, as has been revealed by ATR-FTIR. At the same time, its enzymatic activity remains unchanged. The results reported herein can be useful in the development of models describing the influence of liquid flow on the properties of enzymes and other proteins. The latter is particularly important for the development of biosensors for biomedical applications-particularly for serological analysis, which is intended for the early diagnosis of various types of cancer and infectious diseases. Our results should also be taken into account in studies of the effects of protein aggregation on hemodynamics, which plays a key role in human body functioning.
Collapse
Affiliation(s)
- Yuri D. Ivanov
- Institute of Biomedical Chemistry, Moscow 119121, Russia; (T.O.P.); (I.D.S.); (A.F.K.); (A.A.V.); (I.A.I.); (M.O.E.); (D.I.L.); (V.S.Z.)
| | - Tatyana O. Pleshakova
- Institute of Biomedical Chemistry, Moscow 119121, Russia; (T.O.P.); (I.D.S.); (A.F.K.); (A.A.V.); (I.A.I.); (M.O.E.); (D.I.L.); (V.S.Z.)
| | - Ivan D. Shumov
- Institute of Biomedical Chemistry, Moscow 119121, Russia; (T.O.P.); (I.D.S.); (A.F.K.); (A.A.V.); (I.A.I.); (M.O.E.); (D.I.L.); (V.S.Z.)
| | - Andrey F. Kozlov
- Institute of Biomedical Chemistry, Moscow 119121, Russia; (T.O.P.); (I.D.S.); (A.F.K.); (A.A.V.); (I.A.I.); (M.O.E.); (D.I.L.); (V.S.Z.)
| | - Anastasia A. Valueva
- Institute of Biomedical Chemistry, Moscow 119121, Russia; (T.O.P.); (I.D.S.); (A.F.K.); (A.A.V.); (I.A.I.); (M.O.E.); (D.I.L.); (V.S.Z.)
| | - Irina A. Ivanova
- Institute of Biomedical Chemistry, Moscow 119121, Russia; (T.O.P.); (I.D.S.); (A.F.K.); (A.A.V.); (I.A.I.); (M.O.E.); (D.I.L.); (V.S.Z.)
| | - Maria O. Ershova
- Institute of Biomedical Chemistry, Moscow 119121, Russia; (T.O.P.); (I.D.S.); (A.F.K.); (A.A.V.); (I.A.I.); (M.O.E.); (D.I.L.); (V.S.Z.)
| | - Dmitry I. Larionov
- Institute of Biomedical Chemistry, Moscow 119121, Russia; (T.O.P.); (I.D.S.); (A.F.K.); (A.A.V.); (I.A.I.); (M.O.E.); (D.I.L.); (V.S.Z.)
| | | | - Nina D. Ivanova
- Skryabin Moscow State Academy of Veterinary Medicine and Biotechnology, Moscow 109472, Russia;
| | - Vadim Yu. Tatur
- Foundation of Perspective Technologies and Novations, Moscow 115682, Russia; (V.Y.T.); (I.N.S.)
| | - Igor N. Stepanov
- Foundation of Perspective Technologies and Novations, Moscow 115682, Russia; (V.Y.T.); (I.N.S.)
| | - Vadim S. Ziborov
- Institute of Biomedical Chemistry, Moscow 119121, Russia; (T.O.P.); (I.D.S.); (A.F.K.); (A.A.V.); (I.A.I.); (M.O.E.); (D.I.L.); (V.S.Z.)
- Joint Institute for High Temperatures of the Russian Academy of Sciences, Moscow 125412, Russia
| |
Collapse
|
7
|
Daniyal WMEMM, Fen YW, Anas NAA, Omar NAS, Ramdzan NSM, Nakajima H, Mahdi MA. Enhancing the sensitivity of a surface plasmon resonance-based optical sensor for zinc ion detection by the modification of a gold thin film. RSC Adv 2019; 9:41729-41736. [PMID: 35541586 PMCID: PMC9076571 DOI: 10.1039/c9ra07368j] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2019] [Accepted: 11/12/2019] [Indexed: 12/12/2022] Open
Abstract
Surface plasmon resonance (SPR) sensors as novel optical sensors for the detection of a variety of analytes have been receiving increasing attention and their sensitivity has become the research hotspot recently. In this study, the sensitivity of an SPR optical sensor was enhanced by modifying a gold thin film with a nanocrystalline cellulose (NCC)-based material for zinc ion (Zn2+) detection that exists in the environment due to industrial processing. By replacing the gold thin film with a novel modified-gold thin film, Zn2+ can be detected from the range of 0 to 10 ppm using SPR. It is believed that the Zn2+ may interact with the negative charge molecules that exist on the modified-gold thin film, and this was confirmed via X-ray photoelectron spectroscopy (XPS). Moreover, this modified-gold-SPR has a high sensitivity of 1.892° ppm-1 up to 0.1 ppm with an enhanced detection of Zn2+ as low as 0.01 ppm. The SPR results also followed the Langmuir isotherm model with a binding affinity of 1.927 × 103 M-1, which further confirmed the sensitivity of the SPR sensor. In addition, using the modified-gold thin film, SPR has a higher affinity towards Zn2+ compared to other metal ions, i.e. Ni2+, Fe2+, Cr2+, Mn2+, and Co2+.
Collapse
Affiliation(s)
| | - Yap Wing Fen
- Institute of Advanced Technology, Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia
- Department of Physics, Faculty of Science, Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia
| | - Nur Ain Asyiqin Anas
- Institute of Advanced Technology, Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia
| | - Nur Alia Sheh Omar
- Institute of Advanced Technology, Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia
| | - Nur Syahira Md Ramdzan
- Department of Physics, Faculty of Science, Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia
| | - Hideki Nakajima
- Synchrotron Light Research Institute Maung Nakhon Ratchasima 30000 Thailand
| | - Mohd Adzir Mahdi
- Wireless and Photonics Networks, Faculty of Engineering, Universiti Putra Malaysia 43400 UPM Serdang Selangor Malaysia
| |
Collapse
|
8
|
A novel zinc finger protein–based amperometric biosensor for miRNA determination. Anal Bioanal Chem 2019; 412:5031-5041. [DOI: 10.1007/s00216-019-02219-w] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2019] [Revised: 10/04/2019] [Accepted: 10/15/2019] [Indexed: 10/25/2022]
|
9
|
Verma N, Kaur G. Zinc finger peptide based optic sensor for detection of zinc ions. Biosens Bioelectron 2016; 86:466-471. [DOI: 10.1016/j.bios.2016.06.088] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2016] [Revised: 06/30/2016] [Accepted: 06/30/2016] [Indexed: 02/07/2023]
|
10
|
Verma N, Kaur G. Trends on Biosensing Systems for Heavy Metal Detection. BIOSENSORS FOR SUSTAINABLE FOOD - NEW OPPORTUNITIES AND TECHNICAL CHALLENGES 2016. [DOI: 10.1016/bs.coac.2016.04.001] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
|
11
|
Ayenimo JG, Adeloju SB. Rapid amperometric detection of trace metals by inhibition of an ultrathin polypyrrole-based glucose biosensor. Talanta 2015; 148:502-10. [PMID: 26653478 DOI: 10.1016/j.talanta.2015.11.024] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2015] [Revised: 11/06/2015] [Accepted: 11/07/2015] [Indexed: 10/22/2022]
Abstract
A sensitive and reliable inhibitive amperometric glucose biosensor is described for rapid trace metal determination. The biosensor utilises a conductive ultrathin (55 nm thick) polypyrrole (PPy) film for entrapment of glucose oxidase (GOx) to permit rapid inhibition of GOx activity in the ultrathin film upon exposure to trace metals, resulting in reduced glucose amperometric response. The biosensor demonstrates a relatively fast response time of 20s and does not require incubation. Furthermore, a complete recovery of GOx activity in the ultrathin PPy-GOx biosensor is quickly achieved by washing in 2mM EDTA for only 10s. The minimum detectable concentrations achieved with the biosensor for Hg(2+), Cu(2+), Pb(2+) and Cd(2+) by inhibitive amperometric detection are 0.48, 1.5, 1.6 and 4.0 µM, respectively. Also, suitable linear concentration ranges were achieved from 0.48-3.3 µM for Hg(2+), 1.5-10 µM for Cu(2+), 1.6-7.7 µM for Pb(2+) and 4-26 µM for Cd(2+). The use of Dixon and Cornish-Bowden plots revealed that the suppressive effects observed with Hg(2+) and Cu(2+) were via non-competitive inhibition, while those of Pb(2+) and Cd(2+) were due to mixed and competitive inhibition. The stronger inhibition exhibited by the trace metals on GOx activity in the ultrathin PPy-GOx film was also confirmed by the low inhibition constant obtained from this analysis. The biosensor was successfully applied to the determination of trace metals in tap water samples.
Collapse
Affiliation(s)
- Joseph G Ayenimo
- NanoScience and Sensor Technology Research Group, School of Chemistry, Monash University, Clayton, VIC 3800, Australia
| | - Samuel B Adeloju
- NanoScience and Sensor Technology Research Group, School of Chemistry, Monash University, Clayton, VIC 3800, Australia.
| |
Collapse
|
12
|
Khedimallah N, Zazoua A, Sbartai A, Jaffrezic-Renault N. A High Sensitivity Impedimetric Biosensor Using the Tannin From Quercusmacrolepis as Biorecognition Element for Heavy Metals Detection. IEEE Trans Nanobioscience 2015; 14:694-9. [DOI: 10.1109/tnb.2015.2461444] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
13
|
Sharaf MS, van den Heuvel MR, Stevens D, Kamunde C. Zinc and calcium modulate mitochondrial redox state and morphofunctional integrity. Free Radic Biol Med 2015; 84:142-153. [PMID: 25841782 DOI: 10.1016/j.freeradbiomed.2015.03.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/22/2014] [Revised: 03/03/2015] [Accepted: 03/08/2015] [Indexed: 01/08/2023]
Abstract
Zinc and calcium have highly interwoven functions that are essential for cellular homeostasis. Here we first present a novel real-time flow cytometric technique to measure mitochondrial redox state and show it is modulated by zinc and calcium, individually and combined. We then assess the interactions of zinc and calcium on mitochondrial H2O2 production, membrane potential (ΔΨm), morphological status, oxidative phosphorylation (OXPHOS), complex I activity, and structural integrity. Whereas zinc at low doses and both cations at high doses individually and combined promoted H2O2 production, the two cations individually did not alter mitochondrial redox state. However, when combined at low and high doses the two cations synergistically suppressed and promoted, respectively, mitochondrial shift to a more oxidized state. Surprisingly, the antioxidants vitamin E and N-acetylcysteine showed pro-oxidant activity at low doses, whereas at high antioxidant doses NAC inhibited OXPHOS and dyscoupled mitochondria. Individually, zinc was more potent than calcium in inhibiting OXPHOS, whereas calcium more potently dissipated the ΔΨm and altered mitochondrial volume and ultrastructure. The two cations synergistically inhibited OXPHOS but antagonistically dissipated ΔΨm and altered mitochondrial volume and morphology. Overall, our study highlights the importance of zinc and calcium in mitochondrial redox regulation and functional integrity. Importantly, we uncovered previously unrecognized bidirectional interactions of zinc and calcium that reveal distinctive foci for modulating mitochondrial function in normal and disease states because they are potentially protective or damaging depending on conditions.
Collapse
Affiliation(s)
- Mahmoud S Sharaf
- Department of Biomedical Sciences, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PE C1A 4P3, Canada; Faculty of Veterinary Medicine, Cairo University, Giza 12211, Egypt
| | - Michael R van den Heuvel
- Department of Biomedical Sciences, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PE C1A 4P3, Canada; Canadian Rivers Institute, Department of Biology, University of Prince Edward Island, Charlottetown, PE C1A 4P3, Canada
| | - Don Stevens
- Department of Biomedical Sciences, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PE C1A 4P3, Canada
| | - Collins Kamunde
- Department of Biomedical Sciences, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PE C1A 4P3, Canada.
| |
Collapse
|
14
|
Guzik U, Hupert-Kocurek K, Wojcieszyńska D. Immobilization as a strategy for improving enzyme properties-application to oxidoreductases. Molecules 2014; 19:8995-9018. [PMID: 24979403 PMCID: PMC6271243 DOI: 10.3390/molecules19078995] [Citation(s) in RCA: 305] [Impact Index Per Article: 30.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2014] [Revised: 06/13/2014] [Accepted: 06/16/2014] [Indexed: 01/05/2023] Open
Abstract
The main objective of the immobilization of enzymes is to enhance the economics of biocatalytic processes. Immobilization allows one to re-use the enzyme for an extended period of time and enables easier separation of the catalyst from the product. Additionally, immobilization improves many properties of enzymes such as performance in organic solvents, pH tolerance, heat stability or the functional stability. Increasing the structural rigidity of the protein and stabilization of multimeric enzymes which prevents dissociation-related inactivation. In the last decade, several papers about immobilization methods have been published. In our work, we present a relation between the influence of immobilization on the improvement of the properties of selected oxidoreductases and their commercial value. We also present our view on the role that different immobilization methods play in the reduction of enzyme inhibition during biotechnological processes.
Collapse
Affiliation(s)
- Urszula Guzik
- University of Silesia in Katowice, Faculty of Biology and Environmental Protection, Department of Biochemistry, Jagiellonska 28, 40-032 Katowice, Poland.
| | - Katarzyna Hupert-Kocurek
- University of Silesia in Katowice, Faculty of Biology and Environmental Protection, Department of Biochemistry, Jagiellonska 28, 40-032 Katowice, Poland.
| | - Danuta Wojcieszyńska
- University of Silesia in Katowice, Faculty of Biology and Environmental Protection, Department of Biochemistry, Jagiellonska 28, 40-032 Katowice, Poland.
| |
Collapse
|