Related Experiment Video
Updated: Jun 1, 2026

08:06
The Use of a β-lactamase-based Conductimetric Biosensor Assay to Detect Biomolecular Interactions
Published on: February 1, 2018
Books and Software: The essential guide for biosensors.
Analytical Chemistry
|June 10, 2011
Summary
This review covers affinity biosensors, detailing various techniques and protocols. It provides a comprehensive overview for researchers in the field.
Area of Science:
- Biomedical Engineering
- Analytical Chemistry
- Biotechnology
Background:
- Affinity biosensors are crucial for detecting biological molecules.
- Advancements in sensor technology have expanded their applications.
- Standardized protocols are needed for reliable results.
Purpose of the Study:
- To review current affinity biosensor technologies.
- To discuss established and emerging techniques.
- To outline key protocols for biosensor development and application.
Main Methods:
- Literature review of scientific databases (e.g., PubMed, Scopus).
- Analysis of peer-reviewed articles on affinity biosensor design, fabrication, and performance.
- Synthesis of information on various detection principles and immobilization strategies.
Main Results:
- Overview of diverse affinity ligands (antibodies, aptamers, enzymes).
- Comparison of transduction methods (electrochemical, optical, piezoelectric).
- Compilation of common protocols for sample preparation, assay development, and data analysis.
Conclusions:
- Affinity biosensors offer sensitive and selective detection.
- Standardization of techniques and protocols is essential for reproducibility.
- Future research should focus on multiplexing and real-time monitoring.
Related Concept Videos
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...
Enzyme-Linked Immunosorbent Assay
In 1971, Peter Perlman and Eva Engvall developed an Enzyme-linked immunosorbent assay (ELISA or EIA). ELISA differs from western blot in that the assays are conducted in microtiter plates or in vivo rather than on an absorbent membrane.
There are many different types of ELISAs, but they all involve an antibody molecule whose constant region binds an enzyme, leaving the variable region free to bind its specific antigen. Enzyme-substrate reaction allows the antigen to be visualized or quantified.
There are many different types of ELISAs, but they all involve an antibody molecule whose constant region binds an enzyme, leaving the variable region free to bind its specific antigen. Enzyme-substrate reaction allows the antigen to be visualized or quantified.

