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Updated: Aug 2, 2026

Single Cell Transfection in Chick Embryos
Published on: September 25, 2010
Microapplicator and micropipette for inoculation of the embryonated chicken egg
Abstract:
Aflatoxin G2 was used to test the speed and accuracy of the microapplicator and the micropipette. The 50% lethal dose of both assay systems was approximately the same, and 4.0 mug of G2 had an 85% lethal effect in both systems. The 50% lethal dose of the microapplicator and the micropipette was lower than that of the syringe but, of these, only the micropipette can combine the accuracy of the microapplicator and the speed of the syringe.
Insights
The micropipette offers a balance of speed and accuracy, outperforming traditional syringes in delivering precise doses of Aflatoxin G2. This finding is crucial for accurate toxicological studies.
Area of Science:
- Toxicology
- Analytical Chemistry
- Biotechnology
Background:
- Aflatoxin G2 is a potent mycotoxin requiring precise handling in laboratory settings.
- Accurate and efficient delivery systems are critical for reproducible toxicological assays.
Purpose of the Study:
- To compare the speed and accuracy of microapplicator and micropipette systems for Aflatoxin G2 delivery.
- To evaluate the performance of these systems against traditional syringes.
Main Methods:
- Aflatoxin G2 was used as a test substance.
- The 50% lethal dose (LD50) was determined for microapplicator, micropipette, and syringe systems.
- The lethal effect of a specific dose (4.0 mug) was assessed for G2 in both assay systems.
Main Results:
- The 50% lethal dose for both the microapplicator and micropipette were comparable.
- Aflatoxin G2 at 4.0 mug demonstrated an 85% lethal effect in both systems.
- The LD50 for microapplicator and micropipette was lower than that of the syringe.
Conclusions:
- The micropipette system uniquely combines the accuracy of the microapplicator with the speed of the syringe.
- Micropipettes represent an advancement in precise toxicological assay delivery systems.
- These findings support the use of micropipettes for enhanced accuracy and efficiency in mycotoxin research.

