Results 161 to 170 of about 44,365 (244)

Influenza activity in the Eastern Mediterranean Region (EMR) in 2020–2021 amidst the COVID-19 pandemic

open access: yesBMJ Global Health, 2022
Wasiq Khan   +6 more
doaj   +1 more source

Additive Manufacturing of Stretchable Zipping Electrostatic Actuators through Spray Encapsulation of a Frozen Liquid

open access: yesAdvanced Materials Technologies, EarlyView.
This work presents a method to print multi‐layer elastomer structures containing liquid cavities, where the fluid is incorporated as part of the printing process by freezing it, thus avoiding the conventional final filling step. We demonstrate this process by fabricating and characterizing dense arrays of zipping electrostatic actuators.
Giulio Grasso   +2 more
wiley   +1 more source

A Protocol Using Compact 3D Printed Micro‐Optical Elements for Protein Identification from Low‐Intensity Amino‐Acid Raman Signals

open access: yesAdvanced Materials Technologies, EarlyView.
High speed Raman spectroscopy has various applications, e.g. the sequencing of proteins. However, low signal intensity coincides with the low measurement time. The study presents a protocol using only a small number of sensitive single‐photon detectors measuring optimized spectral regions.
Jannis Weinacker   +8 more
wiley   +1 more source

Tough and Fast Thermoresponsive Hydrogel Soft Actuators

open access: yesAdvanced Materials Technologies, EarlyView.
This work develops tough, fast‐responding thermoresponsive double‐network hydrogels that combine excellent mechanical strength with rapid actuation. Composed of PNIPAm and ether‐based polyurethane, the hydrogels achieve ≈8 MPa compressive stress and ≈30% contractile stroke within 2 min at 50 °C, enabling temperature‐responsive fluid flow switching for ...
Xi Zhang, Shazed Aziz, Zhonghua Zhu
wiley   +1 more source

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