Toward High-Throughput Fish Embryo Toxicity Tests in Aquatic Toxicology

Area of Science:

• Aquatic toxicology
• Environmental science
• Biotechnology

Background:

• Classical animal testing faces challenges with the shift towards in vitro and simplified in vivo models.
• The fish embryo toxicity test (FET) is a standardized, sensitive alternative to acute fish toxicity tests for chemical risk assessment.
• Current FET methods are labor-intensive and may be inadequate for certain toxicants due to static conditions.

Purpose of the Study:

• To review emerging advances in fluidic and laboratory automation for high-throughput FET (HT-FET).
• To explore how automation can address the labor-intensive nature of current FET protocols.
• To outline challenges and future opportunities in automating embryo toxicity testing.

Main Methods:

• Review of recent technological advances in mechatronics, fluidics, and digital vision systems.
• Analysis of automation opportunities in embryo toxicity testing.
• Discussion of fluidic technologies applicable to high-throughput screening.

Main Results:

• Technological advances offer promising opportunities for automating analytical stages in embryo toxicity testing.
• Fluidic and laboratory automation systems can enable high-throughput FET (HT-FET) testing.
• Automation can potentially overcome limitations of current static FET methods.

Conclusions:

• Automation of FET using fluidics and laboratory systems is crucial for advancing aquatic toxicology.
• High-throughput FET (HT-FET) can enhance efficiency and applicability in chemical risk assessment.
• Further development in fluidic technologies is essential for the future of automated embryo toxicity testing.