Results 71 to 80 of about 2,804,406 (287)

Laser‐Induced Graphene from Waste Almond Shells

open access: yesAdvanced Functional Materials, EarlyView.
Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova   +9 more
wiley   +1 more source

Ultrasound-responsive phase-transitional nanomedicine enables intensity-tunable postoperative analgesia

open access: yesFrontiers in Bioengineering and Biotechnology
IntroductionEffective handling of pain after surgery is a major clinical issue, since insufficient pain relief is associated with extended recovery, excessive opioid use, and increased healthcare.
Xinye Song   +3 more
doaj   +1 more source

Biomass Native Structure Into Functional Carbon‐Based Catalysts for Fenton‐Like Reactions

open access: yesAdvanced Functional Materials, EarlyView.
This study indicates that eight biomasses with 2D flaky and 1D acicular structures influence surface O types, morphology, defects, N doping, sp2 C, and Co nanoparticles loading in three series of carbon, N‐doped carbon, and cobalt/graphitic carbon. This work identifies how these structural factors impact catalytic pathways, enhancing selective electron
Wenjie Tian   +7 more
wiley   +1 more source

Composites of Shellac and Silver Nanowires as Flexible, Biobased, and Corrosion‐Resistant Transparent Conductive Electrodes

open access: yesAdvanced Functional Materials, EarlyView.
Shellac, a centuries‐old natural resin, is reimagined as a green material for flexible electronics. When combined with silver nanowires, shellac films deliver transparency, conductivity, and stability against humidity. These results position shellac as a sustainable alternative to synthetic polymers for transparent conductors in next‐generation ...
Rahaf Nafez Hussein   +4 more
wiley   +1 more source

Application of Ultrasound in Primary Vesicoureteral Reflux: From Diagnosis to Follow Up

open access: yesChildren
Background and Objectives: Primary vesicoureteral reflux (VUR) is a common pediatric urological disorder that can lead to significant renal morbidity if undetected or improperly managed. Ultrasound (US) plays a pivotal role in its assessment, providing a
Marco Pensabene   +10 more
doaj   +1 more source

Wearable Smart Patches on Sustainable Chitosan With Reversible Microbial Growth‐Inhibitory Properties

open access: yesAdvanced Functional Materials, EarlyView.
ABSTRACT Chitosan, a polysaccharide upcycled from biowaste, has long promised sustainable, biocompatible, and antimicrobial films and devices, an appeal reinforced by its recent regulatory recognition, with several chitosan‐based antibacterial dressings gaining clearance through the Food and Drug Administration's 510(k) pathway.
Jacopo Nicoletti   +16 more
wiley   +1 more source

Diagnosis and biopsy of liver metastases using ultrasound contrast agent

open access: yes, 2009
In the presented case, liver metastases were not visible on conventional ultrasound imaging. After a contrast agent was given, multiple metastases were seen, and an ultrasound-guided biopsy was performed, guided by the contrast image.
Skjoldbye, Bjørn, Lorentzen, Torben
core   +1 more source

Superparamagnetic Oxygen-Loaded Nanobubbles to Enhance Tumor Oxygenation During Hyperthermia

open access: yesFrontiers in Pharmacology, 2019
Tumor oxygenation is a critical issue for enhancing radiotherapy (RT) effectiveness. Alternating RT with hyperthermia improves tumor radiosensitivity by inducing a massive vasodilation of the neoangiogenic vasculature provided the whole tumor is properly
Sara Zullino   +8 more
doaj   +1 more source

Contrast-Agent-Enhanced Ultrasound Thermal Ablation

open access: yes, 2008
The small thermal lesions induced when using high-intensity focused ultrasound (HIFU) to ablate tumors results in long treatment duration. In this study. the effect of using ultrasound contrast agent (UCA.
CHEN, WEN-SHIANG;LIN, WIN-LI   +1 more
core  

Acoustic Sizing of an Ultrasound Contrast Agent [PDF]

open access: yes, 2010
Because the properties of ultrasound contrast agent populations after administration to patients are largely unknown, methods able to study them noninvasively are required.
Emmer, Marcia   +21 more
core   +1 more source

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