Search results for fast actuation

Nanophysics May 19, 2020

Scientists lead development of novel acoustofluidic technology that isolates submicron particles

Acoustofluidics is the fusion of acoustics and fluid mechanics that provides a contact-free, rapid and effective manipulation of fluids and suspended particles. The applied acoustic wave can produce a non-zero time-averaged ...

Analytical Chemistry Apr 29, 2020

Molecular engineering metal coordination interactions for strong, tough, fast-recovery hydrogels

Load bearing tissues such as muscles and cartilages typically show high elasticity, toughness and fast recovery rates. However, combining such mechanical properties in the lab to build synthetic biomaterials is fundamentally ...

Nanophysics Apr 09, 2020

Sliding walls – a new paradigm for microfluidic devices

A research team recently developed "sliding walls" as a new technique for fluid control in microfluidic devices, allowing semi-rigid or rigid walls to slide inside a microfluidic chip. In a new report now on Nature: Microsystems ...

Nanomaterials Apr 01, 2020

Graphene-based actuator swarm enables programmable deformation

Actuators that can convert various environmental stimuli to mechanical work have revealed great potential for developing smart devices such as soft robots, micro-electromechanical systems (MEMS), and automatic lab-on-a-chip ...

Plants & Animals Feb 25, 2020

Powerful mantis shrimp pull punches in air for self-preservation

Mantis shrimp (Squilla mantis) don't take kindly to captivity. "They have a general baseline of being angry," chuckles Kate Feller, currently at the University of Minnesota, USA, recalling how the contrary stomatopods are ...

General Physics Feb 19, 2020

Five millimeter diameter motor is powered directly with light

Researchers at the Faculty of Physics at the University of Warsaw, with colleagues from Poland and China used liquid crystal elastomer technology to demonstrate a rotary micromotor powered with light. The 5-millimeter diameter ...

General Physics Feb 18, 2020

In acoustic waves, engineers break reciprocity with 'spacetime-varying metamaterials'

Reciprocity isn't always a good thing.

Biotechnology Jan 29, 2020

Molecular machine tears toxic protein clumps apart

How do cells disentangle proteins that are clumped together? Researchers from AMOLF in Amsterdam and Heidelberg University now show that the molecular chaperone ClpB can forcibly pull on exposed loops of protein chains, and ...

General Physics Dec 09, 2019

Shape-programmable dielectric liquid crystal elastomer actuators

Materials scientists aim to use bioinspired soft robots to carry out advanced interactions between humans and robots, but the associated technology remains to be developed. For example, soft actuators must perform quickly ...

Bio & Medicine Oct 28, 2019

Microscale rockets can travel through cellular landscapes

A new study from the lab of Thomas Mallouk shows how microscale "rockets," powered by acoustic waves and an onboard bubble motor, can be driven through 3-D landscapes of cells and particles using magnets. The research was ...

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