Bioassay
A bioassay (abbreviated from biological assay) represents a specific type of scientific experiment employed in the estimation of the potency or the nature of a substance by evaluating its effects on living entities. Utilized extensively in pharmaceutical research and environmental monitoring, bioassays serve a pivotal role in understanding biological interactions and impacts.
Definition[edit | edit source]
A bioassay is a procedure used to determine the biological activity of a substance, often a hormone or drug, by assessing its effects on living organisms or tissues. These effects can help researchers identify the potency, concentration, and nature of the substance being tested.
Types of Bioassays[edit | edit source]
Bioassays can be categorized based on the biological system used:
- In vivo bioassay: Uses live animals for the test. This provides a holistic understanding of the substance's effects within a living organism's complex system.
- In vitro bioassay: Involves the use of tissues or cells rather than whole organisms. This method is often used for more controlled experiments and when testing on animals is not feasible or ethical.
Applications[edit | edit source]
- Drug Development: Bioassays are crucial during the early stages of drug development to test the effects of potential new drugs on living systems.
- Environmental Monitoring: Bioassays help in detecting and measuring the presence and effect of pollutants in the environment.
- Determination of Mixture Concentration: A bioassay can determine the concentration of a specific constitution within a mixture, aiding in quantitative analysis.
Significance[edit | edit source]
Bioassays provide essential data and insights into the interactions between substances and living organisms. They are instrumental in ensuring the safety and efficacy of new drugs, understanding potential environmental hazards, and providing foundational knowledge for many areas of biological research.
See Also[edit | edit source]
- Pharmacology
- Toxicology
- In vitro
- In vivo
- Drug discovery
- Dilution assay
- Pharmacodynamics
- Pharmacokinetics
- Water quality
- Bioassay-directed fractionation
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