Biosensors a promising future in measurements

Saleem, Muhammad

doi:10.1088/1757-899x/51/1/012012

Cited by 13 publications

(10 citation statements)

References 40 publications

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“…In this section, some of these aspects are discussed. For the determination of toxicity and genotoxicity, cellsense (an amperometric sensor that integrates bacterial cells, E. coli) is used for rapid toxicity measurement (Rodriguez-Mozaz, Alda, & Barcelo, 2006;Saleem, 2013). A similar configuration was used by Kvatinsky, Leibowitch, and Farkas (2008).…”

Section: Offline Sensing Technologies For Monitoring Water Qualitymentioning

confidence: 99%

Biosensors for on-line water quality monitoring – a review

Hossain

Mansour

2019

Arab Journal of Basic and Applied Sciences

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Biosensors are analytical tools that convert a bio-signal into a measurable response. The applicability of these devices is rapidly expanding and their fabrication for continuous and real-time detection is gaining increased attention. Current research continues to further improve their features. Some of the major advantages of these devices are that they are portable and easy to operate, provide a rapid response, can be miniaturized, have a long-life cycle and a short response time and possess a high sensitivity, selectivity and specificity. Biosensors are more efficient and economical than conventional detection methods for a wide range of applications. This article is a tutorial review on the basic concepts of biosensors and their application in water quality monitoring, especially on-line detection systems. The following topics are discussed: (i) basic concepts of biosensors, (ii) biosensing elements and transducers, (iii) biosensor types and performance criteria and (iv) specific applications on water quality monitoring. In addition, this review highlights the various aspects of portable paper-based sensors for on-site detection of pesticides, heavy metals and bacteria in water. Online sensing technologies for water quality monitoring are preferable than offline/ onsite detecting technologies, considering that online systems provide real-time data.

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Section: Offline Sensing Technologies For Monitoring Water Qualitymentioning

confidence: 99%

Biosensors for on-line water quality monitoring – a review

Hossain

Mansour

2019

Arab Journal of Basic and Applied Sciences

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“…In this way, biosensors can be applied in environmental monitoring and offer several advantages such as specificity, sensitivity, portability, and miniaturization. They require minimal sample preparation ( Rodriguez-Mozaz et al, 2006 ; Palchetti and Mascini, 2008 ) and allow rapid and reliable detection of the target substance ( Saleem, 2013 ). Basically, in a biosensor occurs the recognition of a target by a biological sensing element and this event is turned into a measurable signal.…”

Section: Introductionmentioning

confidence: 99%

Metal-Pseudomonas veronii 2E Interactions as Strategies for Innovative Process Developments in Environmental Biotechnology

et al. 2021

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The increase of industrial discharges is the first cause of the contamination of water bodies. The bacterial survival strategies contribute to the equilibrium restoration of ecosystems being useful tools for the development of innovative environmental biotechnologies. The aim of this work was to study the Cu(II) and Cd(II) biosensing, removal and recovery, mediated by whole cells, exopolymeric substances (EPS) and biosurfactants of the indigenous and non-pathogenic Pseudomonas veronii 2E to be applied in the development of wastewater biotreatments. An electrochemical biosensor was developed using P. veronii 2E biosorption mechanism mediated by the cell surface associated to bound exopolymeric substances. A Carbon Paste Electrode modified with P. veronii 2E (CPEM) was built using mineral oil, pre-washed graphite power and 24 h-dried cells. For Cd(II) quantification the CPEM was immersed in Cd(II) (1–25 μM), detected by Square Wave Voltammetry. A similar procedure was used for 1–50 μM Cu(II). Regarding Cd(II), removal mediated by immobilized EPS was tested in a 50 ml bioreactor with 0.13 mM Cd(II), pH 7.5. A 54% metal retention by EPS was achieved after 7 h of continuous operation, while a 40% was removed by a control resin. In addition, surfactants produced by P. veronii 2E were studied for recovery of Cd(II) adsorbed on diatomite, obtaining a 36% desorption efficiency at pH 6.5. Cu(II) adsorption from a 1 mM solution was tested using P. veronii 2E purified soluble EPS in 50 mL- batch reactors (pH = 5.5, 32°C). An 80% of the initial Cu(II) was retained using 1.04 g immobilized EPS. Focusing on metal recovery, Cu nanoparticles (NPs) biosynthesis by P. veronii 2E was carried out in Cu(II)-PYG Broth at 25°C for 5 days. Extracellular CuNPs were characterized by UV-Vis spectral analysis while both extracellular and intracellular NPs were analyzed by SEM and TEM techniques. Responses of P. veronii 2E and its products as biosurfactants, bound and soluble EPS allowed Cu(II) and Cd(II) removal, recovery and biosensing resulting in a multiple and versatile tool for sustainable wastewater biotreatments.

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“…The progress in biosensor development is a promising field of application in the antimicrobial research, as useful tool in the discovery of new antimicrobial compounds [8]. Also, biosensors can also be used to develop new diagnostic techniques more specific to detect the emergence of antimicrobial resistance in hospital environment and clinical samples [8][9][10][11]. As well as the analysis and detection of microbial food contaminants [12].…”

Section: Introductionmentioning

confidence: 99%

Biosensors in Antimicrobial Drug Discovery: Since Biology until Screening Platforms

2015

J Microb Biochem Technol

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Antimicrobial drug resistance is a current public health problem, which is compounded by the misuse of antibiotics in medical practice and the emergence of Multidrug-Resistant (MDR) microorganisms. Therefore it is necessary to develop new anti-infective drugs and implement new methodologies able to establish the Antimicrobial Susceptibility (AST) in field and the point-of-care. In this sense biosensors is a promising technology that can detect MDR strains and small molecules in various samples, these devices have the advantages that can be miniaturized for obtain portability, rapidity, and cost-effectiveness. The aim of this work is to present the applications of biosensors technology in antimicrobial drug discovery, since cell based biosensors and cell culture on chips, considering metabolic interactions of the microbial world and the pharmacological response to be inhibited by compounds with promising activity with the end of design antimicrobial drug screening platforms robust, automatable and reproducible

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Biosensors a promising future in measurements

Cited by 13 publications

References 40 publications

Biosensors for on-line water quality monitoring – a review

Biosensors for on-line water quality monitoring – a review

Metal-Pseudomonas veronii 2E Interactions as Strategies for Innovative Process Developments in Environmental Biotechnology

Biosensors in Antimicrobial Drug Discovery: Since Biology until Screening Platforms

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