Results 61 to 70 of about 197,962 (295)

Preferential Interfacial Engineering of Hydrogels via Interdigitated Nanoparticle Assembly

open access: yesAdvanced Functional Materials, EarlyView.
Robust surface functionalization of hydrogel surfaces is performed via interdigitated metal nanoparticle assembly, inducing strong affinity with the hydrogel matrix. The partially exposed nanoparticle domains act as interfacial nanobridges that mediate both chemical and physical bonding with diverse materials, including small molecules, fluorous ...
Hyeonjin Kim   +11 more
wiley   +1 more source

An Integrated Oxygen‐Supplying Device and Predictive Multiphysics Model for Extended Ambient Transport of Insulin‐Producing Cells

open access: yesAdvanced Functional Materials, EarlyView.
Cell therapies typically rely on cold‐chain logistics and cryopreservation, limiting access and compromising cell quality. Here, a dual‐chamber device separates an oxygen‐supplying chamber from a hyaluronic acid cargo chamber, sustaining oxygen delivery for over 70 h and enabling ambient‐temperature shipment.
Daniel A. Domingo‐Lopez   +9 more
wiley   +1 more source

Broadband Tissue Mimicking Phantoms and a Patch Resonator for Evaluating Noninvasive Monitoring of Blood Glucose Levels [PDF]

open access: yes, 2014
(c) 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, including reprinting/ republishing this material for advertising or promotional purposes, creating new collective works for resale or ...
Yilmaz, T, Hao, Y, Foster, R
core   +1 more source

Miniaturized Mechanical Antennas: Advances, Challenges, and Future Directions

open access: yesAdvanced Physics Research
In the past decade, miniaturized mechanical antennas have become a research focus. Several types of mechanical antennas based on different operation principles, including mechanical antennas based on magnetoelectric effect, mechanical antennas based on ...
Hao Ren
doaj   +1 more source

A Small Implantable Compact Antenna for Wireless Telemetry Applied to Wireless Body Area Networks

open access: yesApplied Sciences
Wireless Body Area Networks (WBANs) are human-centric wireless networks, and implantable antennas represent a vital communication component within WBANs.
Zongsheng Gan   +5 more
doaj   +1 more source

A Triple-Band Broadband Miniature Antenna Design for Implantable Continuous Glucose Monitoring

open access: yesInternational Journal of Antennas and Propagation, 2023
This paper presents a miniaturized triband implantable planar antenna that covers the industrial, scientific, and medical (ISM) band and the Wireless Medical Telemetry Service (WMTS) band which can be used in a continuous blood glucose monitoring device.
Zhiwei Song   +3 more
doaj   +1 more source

Genetically Programmed Shape‐Morphing of Engineered Living Materials

open access: yesAdvanced Functional Materials, EarlyView.
Here, bacterial and mammalian engineered living materials (ELMs) are presented, in which living cells direct genetically programmed and enzymatically mediated shape‐morphing. The resulting deformation and shape‐recovery can be actuated in a genetically controlled manner by an ELM incorporating out‐of‐equilibrium counteracting biochemical reactions with
Jan Becker   +7 more
wiley   +1 more source

Electromagnetic radiation from ingested sources in the human intestine between 150 MHz and 1.2 GHz [PDF]

open access: yes, 2003
The conventional method of diagnosing disorders of the human gastro-intestinal (GI) tract is by sensors embedded in cannulae that are inserted through the anus, mouth, or nose.
Hammond, P.A.   +3 more
core   +1 more source

Unique Role of Microstructure of a Bioimplant Zinc Alloy and Protein Content of Simulated Body Fluid in Corrosion and Fracture

open access: yesAdvanced Functional Materials, EarlyView.
BSA addition to physiological solutions enhances resistance of a Zn alloy to stress corrosion cracking (SCC) but reduces its corrosion resistance. Extended surface characterization explains the contrasting influences on corrosion and SCC. Unexpectedly, the alloy suffers transgranular SCC (TGSCC), despite extensive grain boundary precipitation. Thorough
RK Singh Raman   +9 more
wiley   +1 more source

Link Budget Estimation for Implantable Antennas: From In-Body Coupling to Free-Space Radiation [PDF]

open access: yes
In wireless communication systems, the Friis transmission equation is commonly used to quickly estimate wireless transmission efficiency between the transmitter and the receiver.
Gao, Mingxiang   +4 more
core   +1 more source

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