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Related Concept Videos

Microbial Biosensors01:17

Microbial Biosensors

Microbial biosensors are analytical devices that utilize living microbes to detect specific substances through measurable signals. These devices consist of two main components: biosensing organisms and signal-transducing elements. Biosensing organisms, such as Escherichia coli or Saccharomyces cerevisiae, are typically housed in multiwell plates connected to transducers, enabling rapid, real-time detection of target analytes.Signal Generation MechanismWhen a target analyte—such as...
Automated Microbial Diagnostics01:24

Automated Microbial Diagnostics

Automated diagnostic analyzers have transformed clinical microbiology by providing rapid and reliable methods for pathogen identification and antibiotic susceptibility testing. Among these systems, the Vitek 2 is widely used because it automates the traditionally labor-intensive processes of microbial identification (ID) and antibiotic susceptibility testing (AST), delivering standardized and timely results that are essential for effective patient care.Microbial Identification with ID CardsThe...
Microbial Corrosion01:24

Microbial Corrosion

Microbiologically Influenced Corrosion (MIC) is a significant form of material degradation caused by the metabolic activities of microorganisms. This phenomenon poses substantial challenges across various industries, including oil and gas, maritime, and water treatment sectors.MIC occurs when microorganisms, such as bacteria, archaea, and fungi, colonize metal surfaces, forming biofilms that alter the local electrochemical environment. These biofilms can lead to the production of corrosive...
Biological Methods for Microbial Control01:28

Biological Methods for Microbial Control

Biological agents offer an effective means of controlling microbial growth by leveraging natural processes like predation, competition, and the secretion of antimicrobial substances.Predatory bacteria such as Bdellovibrio species target and kill pathogens like Salmonella and E. coli. They are widely used in poultry farms to control infections. Myxococcus species help combat plant-pathogenic fungi. These naturally occurring predators serve as eco-friendly alternatives to chemical pesticides and...
Methods to Assess Microbial Communities01:19

Methods to Assess Microbial Communities

Microbial communities, comprising bacteria, archaea, and eukaryotic microorganisms, inhabit diverse ecosystems and play crucial roles in environmental and biological processes. Their diversity is defined by three main parameters: species richness (the number of distinct species), species abundance (the relative quantity of each species), and species evenness (how uniformly individual species are distributed in various locations). These factors together shape the structure and ecological balance...
Methods to Assess Microbial Populations01:30

Methods to Assess Microbial Populations

Assessing microbial populations is crucial for understanding microbial roles in health, ecology, and industry. Various complementary techniques—both culture-based and molecular—enable detailed analysis of microbial abundance, diversity, and function.Viable Plate CountThe viable plate count is a traditional culture-based method used to estimate the number of living microbes in a sample. After serial dilution, the sample is spread onto nutrient agar plates. Each viable cell forms a visible...

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Optical Detection of E. coli Bacteria by Mesoporous Silicon Biosensors
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Optical Detection of E. coli Bacteria by Mesoporous Silicon Biosensors

Published on: November 20, 2013

Microbial biosensors: a review.

Liang Su1, Wenzhao Jia, Changjun Hou

  • 1Department of Chemical, Materials and Biomolecular Engineering, University of Connecticut, 191 Auditorium Road, Storrs, CT 06269, USA. lis08001@engr.uconn.edu

Biosensors & Bioelectronics
|October 19, 2010
PubMed
Summary
This summary is machine-generated.

This review summarizes microbial biosensors, analytical devices using microorganisms and transducers to detect analytes. It covers recent advances in fabrication and applications across various sensing techniques for environmental and biomedical uses.

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Area of Science:

  • Analytical Chemistry
  • Biotechnology
  • Environmental Science

Background:

  • Microbial biosensors integrate microorganisms with physical transducers for analyte detection.
  • These biosensors are increasingly vital in environmental monitoring, food safety, and biomedical diagnostics.

Purpose of the Study:

  • To review recent advancements in microbial biosensor fabrication and applications.
  • To discuss various sensing techniques employed in microbial biosensing.
  • To explore future design strategies for enhanced microbial biosensors.

Main Methods:

  • Summarization of sensing techniques including amperometry, potentiometry, conductometry, and voltammetry.
  • Review of microbial fuel cell-based biosensors.
  • Analysis of optical methods like fluorescence, bioluminescence, and colorimetry.

Main Results:

  • Recent progress in fabricating and applying microbial biosensors across diverse sensing platforms.
  • Demonstrated utility in environmental, food, and biomedical fields.
  • Identification of key trends in microbial biosensor development.

Conclusions:

  • Microbial biosensors offer versatile analytical capabilities.
  • Continued innovation in sensing techniques and transducer integration is crucial.
  • Future research should focus on optimizing designs for specific applications and improving sensitivity and selectivity.