Bryan C. Petzold
Stanford University
15 Papers
304 Citations
Bryan C. Petzold is an academic researcher from Stanford University. The author has contributed to research in topics: Nitride & Piezoresistive effect. The author has an hindex of 8, co-authored 15 publications.
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Papers
Aluminum nitride on titanium for CMOS compatible piezoelectric transducers
TL;DR: A post-CMOS compatible fabrication process for piezoelectric sensors and actuators on silicon using only standard CMOS metals is reported and microcantilever actuators are demonstrated.
SU-8 force sensing pillar arrays for biological measurements
Joseph C. Doll,N. Harjee,N. Klejwa,Ronald Y. Kwon,Sarah M. Coulthard,Bryan C. Petzold,Miriam B. Goodman,Beth L. Pruitt +7 more
TL;DR: A two-axis micro strain gauge force sensor constructed from multiple layers of SU-8 and metal on quartz substrates is presented, and the scale of interaction forces generated in wild-type C. elegans is characterized for the first time.
Tissue mechanics govern the rapidly adapting and symmetrical response to touch
Amy L. Eastwood,Alessandro Sanzeni,Alessandro Sanzeni,Bryan C. Petzold,Sung-Jin Park,Massimo Vergassola,Beth L. Pruitt,Miriam B. Goodman +7 more
TL;DR: It is shown that current amplitude increases with indentation, not force, and that fast stimuli evoke larger currents than slower stimuli producing the same or smaller indentation - a general mechanism for symmetrical and rapidly adapting MeT channel activation relevant to somatosensory neurons across phyla and submodalities.
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Caenorhabditis elegans Body Mechanics Are Regulated by Body Wall Muscle Tone
Bryan C. Petzold,Sung-Jin Park,Pierre Ponce,C. L. Roozeboom,Chloé Powell,Miriam B. Goodman,Beth L. Pruitt +6 more
TL;DR: The idea that body wall muscle activation contributes significantly to and can modulate C.elegans body mechanics is supported by modulating muscle tone using optogenetic and pharmacological tools and measuring animal stiffness using piezoresistive microcantilevers.
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MEMS-based force-clamp analysis of the role of body stiffness in C. elegans touch sensation
TL;DR: The theoretical body deformation predicted under applied force is investigated and it is concluded that local mechanical loads induce inward bending deformation of the skin to drive touch sensation in C. elegans.
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