Results 191 to 200 of about 712,331 (305)

Cilia-driven epithelial folding and unfolding in an early diverging animal. [PDF]

Proc Natl Acad Sci U S A
Brannon CM, Prakash M.
europepmc   +1 more source

Compliant Pneumatic Feet with Real‐Time Stiffness Adaptation for Humanoid Locomotion

Advanced Robotics Research, EarlyView.
A compliant pneumatic foot with real‐time variable stiffness enables humanoid robots to adapt to changing terrains. Using onboard vision and pressure control, the foot modulates stiffness within each gait cycle, reducing impact forces and improving balance. The design, cast in soft silicone with embedded air chambers and Kevlar wrapping, offers durable,
Irene Frizza, Hiroshi Kaminaga, Philippe Fraisse, Gentiane Venture   +3 more
wiley   +1 more source

Origami‐Inspired Structural Design for Aquatic‐Terrestrial Amphibious Robots

Advanced Robotics Research, EarlyView.
This work presents a lightweight amphibious origami robot actuated by a single shape memory alloy wire. A rigid foldable origami structure with displacement amplification enables efficient terrestrial crawling and aquatic swimming. The addition of fan‐shaped units allows controllable turning in both environments.
Weiqi Liu, Chunlong Wang, Xiaohang Sun, Hongwei Guo, Jiayao Ma, Yan Chen   +5 more
wiley   +1 more source

<i>De Novo</i> Design of Glycan Foldamers with Programmable Tertiary Structure. [PDF]

J Am Chem Soc
Vázquez-Mena Y, Yadav N, Rosenthal M, Ogawa Y, Delbianco M.   +4 more
europepmc   +1 more source

A Soft Robotic Fish With a Dielectric Elastomer Actuator Body and Negative Stiffness Spine

Advanced Robotics Research, EarlyView.
This work introduces a bio‐mimetic soft robotic fish driven by fiber‐reinforced dielectric elastomer actuators integrated as its body. By prestretching this active skin against a flexible spine, a negative stiffness system is created, enabling large‐amplitude bending.
Markus Koenigsdorff, Simon Holzer, Stefania Konstantinidi, Yoan Civet, Yves Perriard   +4 more
wiley   +1 more source

Toughening Artificial Spider Silk via Glue-Like Nanoparticle Crosslinks. [PDF]

Adv Mater
Mei G, Zhang Z, Fang S, Zhou B, Liu Y, Zhou Z, Jia Y, Zhao W, Guo W, Zhai W, Zhou X, Liu Z.   +11 more
europepmc   +1 more source

Introducing PNEUMA: A Hybrid Soft Pneumatic Fabric Bidirectional Actuation Module for Wearable Robotics

Advanced Robotics Research, EarlyView.
This study presents a soft pneumatic fabric bidirectional actuation module (PNEUMA) capable of generating high torque in both bending directions within a single integrated architecture. PNEUMA achieves up to 50 Nm with reduced inflation volume and a lightweight design.
Odysseas Simatos, Nikolaos Charalampous, Panagiotis Polygerinos   +2 more
wiley   +1 more source

Evolution of N-terminal mechanical lability as a determinant for Type III secretion. [PDF]

Protein Sci
DaPron KE, Plastow AM, Fink MR, Dzuba B, LeBlanc MA, Perkins TT, Tajkhorshid E, Sousa MC.   +7 more
europepmc   +1 more source

Stiffness‐Programmable Origami Robots With Tendon‐Driven Actuation via Multimaterial 3D Printing

Advanced Robotics Research, EarlyView.
Motion diversity is achieved in a tendon‐driven origami robot through programmable stiffness rather than modified actuation. Multimaterial 3D printing embeds soft creases, modular inserts redirect identical tendon inputs into distinct behaviors, and variable‐stiffness inserts enable real‐time switching.
Elisha Lerner, Jianguo Zhao
wiley   +1 more source

Impact of Strand Edge N-Amination on the Stability of a Parallel β-Hairpin Fold. [PDF]

J Org Chem
Starnes SK, Horne WS, Del Valle JR.
europepmc   +1 more source