Search research articles

ABOUT JoVE

Overview Leadership Blog JoVE Help Center

AUTHORS

Publishing Process Editorial Board Scope & Policies Peer Review FAQ Submit

LIBRARIANS

Testimonials Subscriptions Access Resources Library Advisory Board FAQ

RESEARCH

JoVE Journal Methods Collections JoVE Encyclopedia of Experiments Archive

EDUCATION

JoVE Core JoVE Business JoVE Science Education JoVE Lab Manual Faculty Resource Center Faculty Site

Terms & Conditions of Use

Related Concept Videos

Microbial Biosensors

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...

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by

Same author

TENG-Driven Electrotherapy: A Self-Powered Approach to Inducing Cancer Cell Apoptosis.

ACS applied bio materials·2026

Same author

A low-cost titanium suboxide pH sensor with competitive operational lifetime assessed with electrochemical impedance spectroscopy.

Journal of materials chemistry. B·2026

Same author

Flexible and Self-Powered Wearable Sensors for Tremor Monitoring in Parkinson'S Disease: Recent Advances in Materials and Device Architectures.

Advanced healthcare materials·2026

Same author

SAFE: a Mix-and-Read Assay for miRNA Detection in Extracellular Vesicles From Unprocessed Plasma Toward Clinical Disease Diagnosis.

Small (Weinheim an der Bergstrasse, Germany)·2026

Same author

Interfacial field-driven self-poling in a lead-free P(VDF-TrFE)/BCZT nanogenerator: achieving high-performance energy harvesting <i>via</i> percolation-optimized dielectric coupling.

Nanoscale·2026

Same author

Beyond Molecular Determinism: State-Convergent Polymerization as a Functional Design Principle Under Chemical Complexity.

Advanced science (Weinheim, Baden-Wurttemberg, Germany)·2026

Search research articles

Related Experiment Video

Updated: Jun 13, 2026

Optical Detection of E. coli Bacteria by Mesoporous Silicon Biosensors

Optical Detection of E. coli Bacteria by Mesoporous Silicon Biosensors

Published on: November 20, 2013

Carbohydrate-protein interaction-based detection of pathogenic bacteria using a biodegradable self-powered biosensor.

Swati Panda¹, Sugato Hajra¹, Hang Gyeom Kim¹

¹Department of Robotics and Mechatronics Engineering, Daegu Gyeongbuk Institute of Science and Technology (DGIST), Daegu-42988, Republic of Korea. joonkim@dgist.ac.kr.

Journal of Materials Chemistry. B

|October 18, 2023

Summary

This study presents a battery-free, biodegradable sensor using a triboelectric nanogenerator (TENG) to detect E. coli bacteria. The novel sensor offers a sustainable solution for environmental monitoring and diagnostics.

More Related Videos

The Use of a β-lactamase-based Conductimetric Biosensor Assay to Detect Biomolecular Interactions

The Use of a β-lactamase-based Conductimetric Biosensor Assay to Detect Biomolecular Interactions

Published on: February 1, 2018

Development of an Electrochemical DNA Biosensor to Detect a Foodborne Pathogen

Development of an Electrochemical DNA Biosensor to Detect a Foodborne Pathogen

Published on: June 3, 2018

Related Experiment Videos

Last Updated: Jun 13, 2026

Optical Detection of E. coli Bacteria by Mesoporous Silicon Biosensors

Optical Detection of E. coli Bacteria by Mesoporous Silicon Biosensors

Published on: November 20, 2013

The Use of a β-lactamase-based Conductimetric Biosensor Assay to Detect Biomolecular Interactions

The Use of a β-lactamase-based Conductimetric Biosensor Assay to Detect Biomolecular Interactions

Published on: February 1, 2018

Development of an Electrochemical DNA Biosensor to Detect a Foodborne Pathogen

Development of an Electrochemical DNA Biosensor to Detect a Foodborne Pathogen

Published on: June 3, 2018

Area of Science:

Materials Science
Biotechnology
Environmental Science

Background:

Battery-free sensors are crucial for remote environmental monitoring.
Triboelectric nanogenerators (TENGs) convert mechanical energy into electricity, potentially replacing batteries.
Biodegradable sensors offer sustainable solutions for detecting biological contaminants.

Purpose of the Study:

To develop a biodegradable sensor system integrated with TENG for detecting E. coli.
To utilize a D-mannose functionalized polylactic acid (PLA) material for bacterial detection.
To demonstrate a sustainable and efficient method for environmental bacterial screening.

Main Methods:

Fabrication of a D-mannose functionalized 3D printed PLA sensor with a silver electrode.
Integration of the sensor with a TENG for power generation and detection.
Detection of E. coli based on carbohydrate-protein interactions and changes in electrical resistance.
Testing the sensor's performance in environmental samples like tap water and milk.
Evaluation of the biosensor's biodegradability in soil compost.

Main Results:

The PLA TENG generated a significant output (70 V, 800 nA, 22 nC).
The biosensor successfully detected E. coli in tap water (6 μA) and unpasteurized milk (5 μA).
The sensor demonstrated measurable changes in output current corresponding to bacterial concentration.
The biosensor exhibited biodegradability under controlled soil compost conditions.

Conclusions:

A novel, battery-free, and biodegradable TENG-based biosensor for E. coli detection was successfully developed.
The D-mannose functionalized PLA sensor provides an efficient and rapid method for bacterial screening.
The study highlights the potential of TENG-based platforms for reliable and sustainable environmental monitoring.