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10-Minute Paper

Physiology, Biochemistry, and Toxicology

PBT: Behavior Physiology

Using microfabricated hooks to impede the locomotion of bed bugs

Wednesday, November 8, 2023
2:00 PM – 2:12 PM ET
Location: Gaylord National Resort & Convention Center, National Harbor 10
In-Person
Bed bugs (Hemiptera: Cimicidae) are persistent pests that have surged in infestations in recent decades due to increases in travel. There is an interest in developing an environmentally-friendly and non-chemical method of controlling these pests that could be safely used long term. The microscopic hooked hairs (trichomes) of bean leaves have been observed to physically and permanently entrap bed bugs. We produced synthetic hooks inspired by the action of the bean leaf hooks, with the aim of reproducing the bug entrapment phenomenon, while also lasting much longer. Hooks are microfabricated via sub-micron two-photon polymerization 3D printing on a glass surface using photoresin. High-speed videography and analysis revealed that the locomotion of Harlan strain bed bugs (Cimex lectularius) was impeded. The artificial hooks were able to temporarily prevent the legs of bed bugs from moving by snagging their tarsi. Our findings show the potential of 3D-printed hooks in providing a solution for bed bug prevention.