title: Biopsy with thermally-responsive untethered microtools.
abstract: Thermally activated, untethered microgrippers can reach narrow conduits in the body and be used to excise tissue for diagnostic analyses. As depicted in the figure, the feasibility of an in vivo biopsy of the porcine bile duct using untethered microgrippers is demonstrated.
authors.affiliation: Department of Chemical and Biomolecular Engineering, The Johns Hopkins University, Baltimore, MD 21218, USA.
authors.forename: Evin
authors.initials: E
authors.lastname: Gultepe
authors.forename: Jatinder S
authors.initials: JS
authors.lastname: Randhawa
authors.forename: Sachin
authors.initials: S
authors.lastname: Kadam
authors.forename: Sumitaka
authors.initials: S
authors.lastname: Yamanaka
authors.forename: Florin M
authors.initials: FM
authors.lastname: Selaru
authors.forename: Eun J
authors.initials: EJ
authors.lastname: Shin
authors.forename: Anthony N
authors.initials: AN
authors.lastname: Kalloo
authors.forename: David H
authors.initials: DH
authors.lastname: Gracias
mesh_terms: D000818:Animals; D001652:Bile Ducts / Q000378:metabolism / Q000473:pathology*; D001706:Biopsy; D055264:Mucin-4 / Q000235:genetics / Q000378:metabolism; D012371:Robotics / Q000295:instrumentation*; D013552:Swine
chemical_list: D055264:Mucin-4