Results 111 to 120 of about 76,500 (155)

Bombardier beetle based biosensor

open access: yesBiosensors and Bioelectronics, 1996
A biosensor constructed by combining an oxygen electrode with the liquid ejected by bombardier beetles (Pheropsophus aequinoctialis) immobolized on a collagen membrane is developed for hydrogen peroxide. The sensor presents a linear range of 2.0 x 10(-4)-2.0 x 10(-3) M and a reproductibility of approximately 2%.
H S, Nakatani   +4 more
openaire   +3 more sources

Spray mechanism of crepidogastrine bombardier beetles (Carabidae; Crepidogastrini)

Chemoecology, 2001
The defensive glandular apparatus of primitive bombardier beetles of the tribe Crepidogastrini (Carabidae) is described for the first time. As exemplified by two African species (Crepidogaster ambreana and C. atrata), the apparatus conforms to the basic bombardier plan, in that the glands are bicompartmented and the secretion is quinonoid (it contains ...
Jayne E Yack   +2 more
exaly   +2 more sources

Biosynthetic origin of benzoquinones in the explosive discharge of the bombardier beetle Brachinus elongatulus

Die Naturwissenschaften, 2020
Bombardier beetles are well-known for their remarkable defensive mechanism. Their defensive apparatus consists of two compartments known as the reservoir and the reaction chamber. When challenged, muscles surrounding the reservoir contract sending chemical precursors into the reaction chamber where they mix with enzymes resulting in an explosive ...
Athula Attygalle   +2 more
exaly   +3 more sources

Functional anatomy of the explosive defensive system of bombardier beetles (Coleoptera, Carabidae, Brachininae)

Arthropod Structure and Development, 2015
This paper provides the first comparative anatomical study of the explosive pygidial defensive system of bombardier beetles in species classified in three brachinine subtribes: Brachinus (Brachinina), Pheropsophus (Pheropsophina) and Aptinus (Aptinina).
Roberto Romani, Andrea di Giulio
exaly   +4 more sources

Acoustic concomitants of the defensive discharges of a primitive bombardier beetle (Metrius contractus)

Chemoecology, 2001
Metrius contractus, a primitive paussoid bombardier beetle, emits its defensive quinonoid froth with accompanying sound (a faint “hiss”), but the sound is not pulsed, indicating that the secretory emission itself is not pulsed. Pulsed secretory delivery in bombardier beetles appears to occur in Brachinini only.
Jayne E Yack   +2 more
exaly   +2 more sources

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