Studying Gold Nanoparticles in Cockroach Brains
Author Information
Author(s): Rocha Aracely, Zhou Yan, Kundu Subrata, González Jorge M, Vinson S Bradleigh, Liang Hong
Primary Institution: Texas A&M University
Hypothesis
Can negatively charged gold nanoparticles interact with the central nervous system of Blaberus discoidalis?
Conclusion
The study found that gold nanoparticles affected the locomotion of cockroaches but did not significantly impact their life expectancy over two months.
Supporting Evidence
- The negatively charged gold nanoparticles were successfully injected into the cockroach's central nervous system.
- Cockroaches treated with nanoparticles showed increased activity for 17 days post-treatment.
- After two months, the survival rate was 67% for treated cockroaches and 78% for control cockroaches.
Takeaway
Researchers injected tiny gold particles into cockroaches to see how they affect their movement and found that the particles changed how the roaches moved but didn't really hurt them.
Methodology
The study involved injecting negatively charged gold nanoparticles into the cockroach's central nervous system and observing their effects on locomotion and behavior over two months.
Limitations
The study only observed the cockroaches for two months, which may not be sufficient to assess long-term effects of the nanoparticles.
Participant Demographics
Male Blaberus discoidalis cockroaches, approximately 2.1 grams in weight.
Digital Object Identifier (DOI)
Want to read the original?
Access the complete publication on the publisher's website