Results 91 to 100 of about 492,457 (346)
Transient Stiffness Patterning in Hydrogels Driven by Dissipative Mechanochemical Coupling
Advanced Functional Materials, EarlyView.Force‐induced disulfide bond rupture in a polymer‐based hydrogel, coupled with chemical or electrochemical reoxidation, leads to the transient modulation of the hydrogel's stiffness properties. High spatiotemporal control is achieved by this dissipative process, enabling the development of out‐of‐equilibrium stiffness patterns and transient, dose ...
Roberto Baretta +2 more
wiley +1 more source
Ultrasound Measurement Technique for Validation of Cryogenic Flows
Proceedings, 2018 An ultrasound sensor system based on the transmission-mode approach is developed to enable the monitoring and sensing of cryogenic liquids and gases—especially gaseous bubbles and gas-liquid interfaces in liquid nitrogen (LN2). Common sensors do not meet
David Becker +3 more
doaj +1 more source
A chaotic self-oscillating sunlight-driven polymer actuator
Nature Communications, 2016 Nature provides much inspiration for the design of materials capable of motion upon exposure to external stimuli, and many examples of such active systems have been created in the laboratory. However, to achieve continuous motion driven by an unchanging,
Kamlesh Kumar +8 more
semanticscholar +1 more source
Nature Chemistry, 2010 A tiny claw that opens and closes in response to two different enzymes has been fabricated and used to perform a biopsy on a model liver.
openaire +2 more sources
Optical Control of Ferroelectric Imprint in BiFeO3
Advanced Functional Materials, EarlyView.Above‐bandgap irradiation at room temperature enables on‐demand optical control of defect‐driven built‐in electric fields in BiFeO₃ thin films, fabricated via scalable, chemical spray pyrolysis. These fields, otherwise “frozen‐in,” can cause severe device degradation, including non‐switchable polarization, dead layers near interfaces, and polarization ...
Haoze Zhang +8 more
wiley +1 more source
Advanced Functional Materials, EarlyView.An environmentally friendly transfer printing method of nm‐thick giant magnetoresistive (GMR) sensors is demonstrated. This method, relying on water and biocompatible polyvinyl alcohol (PVA) polymer without the need of complex treatments, allows transferring thin films to a wide range of biological, organic, and inorganic substrates.
Olha Bezsmertna +7 more
wiley +1 more source
Mimosa inspired bilayer hydrogel actuator functioning in multi-environments
, 2018 Hydrogel-based actuators have attracted significant attention and shown promising applications in many fields. However, most hydrogel actuators can only act in aqueous media, which dramatically limits their applications.
Jing Zheng +9 more
semanticscholar +1 more source
A Structural Optimisation Method for a Soft Pneumatic Actuator
Robotics, 2018 This study aims to investigate the effects of various design parameters on the actuation performance of a pneumatic network actuator (PNA), optimise its structure using the finite element method (FEM), and subsequently quantify the performance of the ...
Weiping Hu +3 more
semanticscholar +1 more source
Advanced Functional Materials, EarlyView.A photocurable latex system enables high‐resolution vat photopolymerization of water‐dispersed thermoplastics, yielding pseudothermoplastic materials with recyclability. The formulation permits precise control over mechanical properties and supports reprocessing through conventional and extrusion‐based methods. Compatibility with two‐photon 3D printing
Jon Ayestaran +12 more
wiley +1 more source