Results 71 to 80 of about 923,815 (244)

A Bio‐Functional Mimetic Robot for Versatile Tasks From Cross‐Scale Manipulation to Limb‐Tool Integration

open access: yesAdvanced Science, EarlyView.
A functionally biomimetic design methodology is presented, enabling a single robot to perform eight distinct functions and manipulate objects across a size range exceeding 2300‐fold. The robot exceeds basic human hand functions and demonstrates remote operation, multi‐object manipulation, humanoid‐robot hand interaction, and narrow‐space inspection ...
Xin Tong   +7 more
wiley   +1 more source

A circumferentially flanged tibial tray minimizes bone-tray shear micromotion [PDF]

open access: yes, 2005
Aseptic loosening of the tibial component is the major complication of total knee arthroplasty. There is an association between early excessive shear micromotion between the bone and the tray of the tibial component and late aseptic loosening.
Ryd, Leif   +8 more
core   +1 more source

Neuropeptide Y—Graphene Oxide Complexes Inhibit Amygdala NPY‐Receptor Expressing Glutamatergic Pathways and Selectively Remove Aversive Memory In Vivo

open access: yesAdvanced Science, EarlyView.
A graphene oxide nanocarrier presents neuropeptide Y specifically to NPY receptor‐expressing pathways in the amygdala, whose activation selectively suppresses aversive memory formation, without modulating anxiety responses. This circuit‐restricted drug release strategy may impact future design of neuropsychiatric therapies with limited off‐target ...
Elisa Pati   +10 more
wiley   +1 more source

Engineered Xenogeneic Bone Scaffold with IL‐10 Nanodelivery System: Immunomodulation and BMSC Fate Programming for Skull Defect Repair

open access: yesAdvanced Science, EarlyView.
A multifunctional regenerative composite is constructed by 3D‐printing thermosensitive PNIPAM hydrogel embedded with MPDA@IL‐10 nanoparticles and autologous BMSCs onto antigen‐depleted porcine bone matrix for beagle critical‐sized skull defect reconstruction.
Weihao Lv   +16 more
wiley   +1 more source

Desenvolvimento de parafusos de osso bovino: método de usinagem e estudo metrológico com projetor de perfil Bovine bone screws development: machining method and metrological study with profile projector

open access: yesActa Ortopédica Brasileira, 2006
Parafusos confeccionados de osso são pouco estudados na literatura. Aspectos estruturais, mecânicos e relativos a osteointegração e osteoindução são importantes tópicos de pesquisa a serem abrangidos previamente ao uso in vivo de implantes de osso ...
Davi P. Haje, José B. Volpon
doaj   +1 more source

In vivo degradation of a new concept of magnesium-based rivet-screws in the minipig mandibular bone [PDF]

open access: yes, 2016
Self-tapping of magnesium screws in hard bone may be a challenge due to the limited torsional strength of magnesium alloys in comparison with titanium.
Saulacic, Nikola   +7 more
core   +1 more source

Bioadhesive‐Integrated 3D‐Printed Multilayer Scaffolds Secure a Mechanically‐Stable Osteoimmune Niche for Enhanced Bone Augmentation

open access: yesAdvanced Science, EarlyView.
A 3D‑printed multilayer adhesive scaffold, firmly anchored to bone defects by simple finger pressing, suppresses micromotion and secures mechanical stability of the osteogenic niche. This stabilization likely contributes to the enhanced bone augmentation by fostering a pro‑regenerative mechano‐immune profile—characterized by M2‑like macrophage ...
Delu Zhao   +7 more
wiley   +1 more source

Electronic Chip‐Mimetic Medical Implants for Controllable Sonothermal Treatments

open access: yesAdvanced Science, EarlyView.
Inspired by the thermal effect of working electronic chips, which consist of various heterostructures, an sonothermal‐responsive platform has been developed through constructing metal‐semiconductor interface on implants. Biofilm infection and deep vein thrombosis can be successfully treated by controllable ultrasound treatments.
Zhengdong Zhang   +10 more
wiley   +1 more source

The design, manufacture and analysis of a new implant for fracture fixation in human and veterinary orthopaedic surgery: the bone fastenerod [PDF]

open access: yes, 2002
Fracture fixation in humans and animals has troubled surgeons and scientists since first it was attempted right up to the present day. At every milestone of achievement in the understanding and practice of fracture repair there has remained a significant
McCartney, William T.
core   +2 more sources

Osseointegration of Self-Drilling Titanium Screws in the Hole Smaller than the Screw Core in the Male Rabbit

open access: yesBulletin of University of Agricultural Sciences and Veterinary Medicine Cluj-Napoca: Veterinary Medicine
Inserting orthopedic screws into a hole that is too small can produce excessive mechanical forces that cause osteocyte death and difficulty carrying out bone repair processes. The aim of the study was to evaluate the osseointegration of titanium screws 6
Vasile DUMA   +8 more
doaj   +1 more source

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