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

Interfacial Electrochemical Methods: Overview

Interfacial Electrochemical Methods: Overview

Interfacial electrochemical methods focus on the phenomena occurring at the boundary between an electrode and a solution, as opposed to bulk methods that concentrate on the solution's overall properties. These interfacial methods are classified as either static or dynamic based on the presence of a nonzero current in the electrochemical cell and the consistency of analyte concentrations. Static methods, such as potentiometry, measure the cell's potential without any significant current passing...

Biasing of P-N Junction

Biasing of P-N Junction

The operation of a p-n junction diode involves various biasing conditions, including forward bias, reverse bias, and equilibrium.
In equilibrium, no external voltage is applied across the p-n junction. The depletion region is formed at the junction interface due to the diffusion of carriers, which leaves behind charged dopants, acceptors on the p-side, and donors on the n-side. These immobile charges create an electric field that prevents further diffusion of carriers. The related energy band...

Metal-Semiconductor Junctions

Metal-Semiconductor Junctions

The contact of metal and semiconductor can lead to the formation of a junction with either Schottky or Ohmic behavior.
Schottky Barriers
Schottky barriers arise when a metal with a work function (Φm) contacts a semiconductor with a different work function (Φs). Initially, electrons transfer until the Fermi levels of the metal and semiconductor align at equilibrium. For instance, if Φm > Φs, the semiconductor Fermi level is higher than the metal's before contact. The semiconductor's...

Biasing of Metal-Semiconductor Junctions

Biasing of Metal-Semiconductor Junctions

Biasing metal-semiconductor junctions involves applying a voltage across the junction. Specifically, the metal is connected to a voltage source, while the semiconductor is grounded. This technique is essential for controlling the direction and magnitude of current flow in electronic devices, including diodes, transistors, and photovoltaic cells.
In Schottky junctions, where the semiconductor is n-type, applying a positive voltage to the metal relative to the semiconductor reduces its Fermi...

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

Unveiling Secrets of Quantum Materials and Devices Using Raman Imaging: A Technique Combining Microscopy and Spectroscopy.

The journal of physical chemistry letters·2026

Same author

Quantum confinement dominates band gaps while defects lead the photoluminescence in silicon nanowires.

RSC advances·2026

Same author

Thermal Dephasing of Localized Vibrations and Quasi-Elastic Scattering in Heavily Doped Silicon: Raman Spectroscopic Evidence.

The journal of physical chemistry letters·2026

Same author

Photo-supercapacitors for the Future: Integrating Solar Conversion and Energy Storage into a Single Platform.

The journal of physical chemistry letters·2026

Same author

Synergizing Color Modulation with Energy Storage Capabilities through MXene Doping: Hybrid Electrochromic Supercapacitor and the Mechanism Therein.

ACS applied materials & interfaces·2026

Same author

Fast self-healing in a layered molecular crystal mediated by stress-induced symmetry breaking.

Nature communications·2026

Search research articles

Related Experiment Video

Updated: Jun 18, 2026

Microfluidic On-chip Capture-cycloaddition Reaction to Reversibly Immobilize Small Molecules or Multi-component Structures for Biosensor Applications

Microfluidic On-chip Capture-cycloaddition Reaction to Reversibly Immobilize Small Molecules or Multi-component Structures for Biosensor Applications

Published on: September 23, 2013

Insight of Employing Molecular Junctions for Sensor Applications.

Abhishek S Shekhawat¹, Bhumika Sahu², Aarti Diwan¹

¹Department of Physics and Nanotechnology, SRM Institute of Science and Technology, Kattankulathur 603203, India.

|October 14, 2024

Summary

This summary is machine-generated.

Molecular junctions (MJs) offer advanced sensing capabilities for diverse applications. This review highlights their potential in developing sensitive and specific sensors for real-time, on-site detection of various analytes.

Keywords:

Biosensors Charge Transport Chemical Sensor Coupling Molecular Electronics Molecular Junctions Photosensor Tunneling

More Related Videos

A Polyaniline-based Sensor of Nucleic Acids

A Polyaniline-based Sensor of Nucleic Acids

Published on: November 1, 2016

Exploring Biomolecular Interaction Between the Molecular Chaperone Hsp90 and Its Client Protein Kinase Cdc37 using Field-Effect Biosensing Technology

Exploring Biomolecular Interaction Between the Molecular Chaperone Hsp90 and Its Client Protein Kinase Cdc37 using Field-Effect Biosensing Technology

Published on: March 31, 2022

Related Experiment Videos

Last Updated: Jun 18, 2026

Microfluidic On-chip Capture-cycloaddition Reaction to Reversibly Immobilize Small Molecules or Multi-component Structures for Biosensor Applications

Microfluidic On-chip Capture-cycloaddition Reaction to Reversibly Immobilize Small Molecules or Multi-component Structures for Biosensor Applications

Published on: September 23, 2013

A Polyaniline-based Sensor of Nucleic Acids

A Polyaniline-based Sensor of Nucleic Acids

Published on: November 1, 2016

Exploring Biomolecular Interaction Between the Molecular Chaperone Hsp90 and Its Client Protein Kinase Cdc37 using Field-Effect Biosensing Technology

Exploring Biomolecular Interaction Between the Molecular Chaperone Hsp90 and Its Client Protein Kinase Cdc37 using Field-Effect Biosensing Technology

Published on: March 31, 2022

Area of Science:

Nanotechnology and Materials Science
Molecular Electronics
Chemical Sensing

Background:

Molecular junctions (MJs) possess unique charge transport properties, positioning them as key components for future electronic devices.
The practical application of molecular electronics, particularly in sensor technology, is critical for technological advancement.

Purpose of the Study:

To review the advances and potential of molecular junctions (MJs) as sensors for a wide range of analytes.
To examine the fundamental principles of MJ formation and their sensing mechanisms.
To provide insights into current research and future directions for MJ-based sensors.

Main Methods:

Literature review of molecular junction formation and sensing mechanisms.
Analysis of MJ applications in various sensor types.
Examination of sensitivity, specificity, and detection capabilities.

Main Results:

MJs demonstrate exceptional sensitivity and specificity for detecting diverse analytes.
Applications span photosensors, explosives, cancer biomarkers (DNA, mRNA), COVID-19, biogases (CO, NO, NH), environmental pH, chemicals, and water pollutants.
MJ-based sensors show significant promise for real-time, on-site detection.

Conclusions:

Molecular junction-based sensors offer a promising platform for sensitive and specific analyte detection.
Further research can advance MJ sensors for practical, real-time, and on-site applications.
This review provides a comprehensive overview and future outlook for the field.