TY - JOUR
T1 - Tears of venom
T2 - Hydrodynamics of reptilian envenomation
AU - Young, Bruce A.
AU - Herzog, Florian
AU - Friedel, Paul
AU - Rammensee, Sebastian
AU - Bausch, Andreas
AU - Van Hemmen, J. Leo
PY - 2011/5/12
Y1 - 2011/5/12
N2 - In the majority of venomous snakes, and in many other reptiles, venom is conveyed from the animal's gland to the prey's tissue through an open groove on the surface of the teeth and not through a tubular fang. Here we focus on two key aspects of the grooved delivery system: the hydrodynamics of venom as it interacts with the groove geometry, and the efficiency of the tooth-groove-venom complex as the tooth penetrates the prey's tissue. We show that the surface tension of the venom is the driving force underlying the envenomation dynamics. In so doing, we explain not only the efficacy of the open groove, but also the prevalence of this mechanism among reptiles.
AB - In the majority of venomous snakes, and in many other reptiles, venom is conveyed from the animal's gland to the prey's tissue through an open groove on the surface of the teeth and not through a tubular fang. Here we focus on two key aspects of the grooved delivery system: the hydrodynamics of venom as it interacts with the groove geometry, and the efficiency of the tooth-groove-venom complex as the tooth penetrates the prey's tissue. We show that the surface tension of the venom is the driving force underlying the envenomation dynamics. In so doing, we explain not only the efficacy of the open groove, but also the prevalence of this mechanism among reptiles.
UR - http://www.scopus.com/inward/record.url?scp=79960636538&partnerID=8YFLogxK
U2 - 10.1103/PhysRevLett.106.198103
DO - 10.1103/PhysRevLett.106.198103
M3 - Article
AN - SCOPUS:79960636538
SN - 0031-9007
VL - 106
JO - Physical Review Letters
JF - Physical Review Letters
IS - 19
M1 - 198103
ER -