Results 81 to 90 of about 224,313 (333)

A temperature-monitoring vaginal ring for measuring adherence.

open access: yesPLoS ONE, 2015
BackgroundProduct adherence is a pivotal issue in the development of effective vaginal microbicides to reduce sexual transmission of HIV. To date, the six Phase III studies of vaginal gel products have relied primarily on self-reporting of adherence ...
Peter Boyd   +9 more
doaj   +1 more source

Scaling properties of a low-actuation pressure microfluidic valve [PDF]

open access: yes, 2004
Using basic physical arguments, we present a design and method for the fabrication of microfluidic valves using multilayer soft lithography. These on-off valves have extremely low actuation pressures and can be used to fabricate active functions, such as
Anna Pandolfi   +10 more
core   +1 more source

Temporally Delayed Deployment of Photo‐Responsive Liquid Crystal Polymer Networks Toward Neural Interfaces

open access: yesAdvanced Healthcare Materials, EarlyView.
Deployable medical devices typically need external stimuli to trigger deployment. However, external stimuli are difficult to supply within tissues. Here, we describe a strategy to deploy small‐scale structures into soft tissues after insertion without the need for any stimulus. We demonstrate deployment within a tissue phantom.
Yeh‐Chia Tseng   +13 more
wiley   +1 more source

Hazards protection for space suits and spacecraft [PDF]

open access: yes, 1990
A flexible multi-layered covering article for protection against the hazards of exposure to the environment of outer space is disclosed. The covering includes an outer layer section comprising an outermost lamina of woven expanded tetrafluoroethylene ...
Dawn, Frederic S., Kosmo, Joseph J.
core   +1 more source

Fatigue life performances of silicone elastomer membranes for dielectric elastomer transducers: preliminary results

open access: yesSmart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2019
Dielectric Elastomer Transducers (DETs) are a promising technology for the development of actuators, generators and sensors with high performance and low cost. Practical application and economic viability of DETs is strongly affected by their reliability
Yi Chen   +5 more
semanticscholar   +1 more source

A Physiological Microfluidic Blood–Brain‐Barrier Model for In Vitro Study of Nanoparticle Trafficking and Accumulation

open access: yesAdvanced Healthcare Materials, EarlyView.
A human microfluidic blood‐brain barrier (mBBB) model enables spatially resolved comparison of nanoparticle trafficking. Extracellular vesicles (EVs), liposomes, and nanoplastics exhibit distinct transport and disruption behaviors, revealing that membrane composition and uptake pathways govern BBB interaction.
Bryan B. Nguyen   +9 more
wiley   +1 more source

Research of the deformation of a thin body with a magnetizable elastomer in the magnetic field of a coil

open access: yesEPJ Web of Conferences, 2018
Deformation of a thin cylindrical body with a magnetizable elastomer based on silicone in the magnetic field of an electromagnetic coil is investigated experimentally and theoretically. It is observed that a bistability of the thin body equilibrium shape
Merkulov Dmitrii
doaj   +1 more source

Epidermal Patch Technologies for Integrated Healthcare and Infection Management

open access: yesAdvanced Healthcare Materials, EarlyView.
Epidermal patches have evolved from simple wound coverings into multifunctional, skin‐conformable platforms integrating drug delivery, biosensing, and therapeutic functionalities. This review highlights their material innovations, fabrication strategies, and intelligent designs, including hydrogels, microneedles, and flexible electronics, while ...
Yuqi Wang   +7 more
wiley   +1 more source

Bioinspired Adaptive Sensors: A Review on Current Developments in Theory and Application

open access: yesAdvanced Materials, EarlyView.
This review comprehensively summarizes the recent progress in the design and fabrication of sensory‐adaptation‐inspired devices and highlights their valuable applications in electronic skin, wearable electronics, and machine vision. The existing challenges and future directions are addressed in aspects such as device performance optimization ...
Guodong Gong   +12 more
wiley   +1 more source

The effect of different surface characterization on bonding strength of maxillofacial silicone elastomer to two different framework materials.

open access: yesErbil Dental Journal, 2022
Background and Objective: The objective of the study was to compare the bonding strength between silicone elastomer and two types of framework materials (acrylic resin and metal chrome cobalt) with different surface characterization.
Zhala Meran, Omar Kamaran Anwar
doaj  

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