Results 231 to 240 of about 568,260 (340)

Ultrasound‐Powered, Battery‐Free Implants via Triboelectric Energy Harvesting

Advanced Materials Technologies, EarlyView.
Ultrasound‐driven triboelectric nanogenerators (US‐TENGs) present a promising approach to battery‐free implants by combining body‐safe ultrasound with the material and structural versatility of TENGs. This review categorizes current US‐TENG research into long‐term and transient short‐term applications and discusses key challenges in materials, device ...
Youngwook Chung, Saswat Choudhury, Young‐Jun Kim, In‐Yong Suh, Keren Dai, Sang‐Woo Kim   +5 more
wiley   +1 more source

Cardiovascular Effects of Tourniquet Application with Cardiac Cycle Efficiency: A Prospective Observational Study. [PDF]

J Clin Med
Seker M, Aktas Yildirim S, Ulugol H, Gucyetmez B, Toraman F.   +4 more
europepmc   +1 more source

Laser Micromachining of Liquid Metal Patterns for Stretchable Electronic Circuits

Advanced Materials Technologies, EarlyView.
A cleanroom‐free fabrication strategy combines UV‐laser micromachining with a copper foil wetting layer to rapidly produce high resolution, liquid metal based stretchable electronic circuits on diverse substrates. The scalable, maskless process enables complex circuit designs (<$<$3 h, ∼$\sim$15/device) with excellent electrical stability under strain,
Merjen Palvanova, Patrick McManigal, Grace Fredrickson, Eric J. Markvicka   +3 more
wiley   +1 more source

Timing along the cardiac cycle modulates neural signals of reward-based learning. [PDF]

Nat Commun
Fouragnan EF, Hosking B, Cheung Y, Prakash B, Rushworth M, Sel A.   +5 more
europepmc   +1 more source

Wireless Power Transfer Modalities for Implantable Bioelectronics: Electromagnetic, Acoustic, and Magneto‐Dynamic Perspectives

Advanced Materials Technologies, EarlyView.
This review traces the evolution of wireless power transfer (WPT) for implantable medical devices, spanning electromagnetic, magnetoelectric, acoustic, and magneto‐dynamic systems. Quantitative comparisons of power, distance, and device scale highlight trade‐offs across modalities, while emerging hybrid mechanisms reveal strategies to overcome ...
Junyeop Kim, Yoonseok Park
wiley   +1 more source

Influence of cardiac cycle on myocardial extracellular volume fraction measurements with dual-layer computed tomography. [PDF]

Quant Imaging Med Surg
Nishigake D, Yamasaki Y, Hida T, Shirasaka T, Funatsu R, Kato T, Ishigami K.   +6 more
europepmc   +1 more source

The volume-dependency of parallel conductance throughout the cardiac cycle and its consequence for volume estimation of the left ventricle in patients [PDF]

, 2001
Lilian Kornet
openalex   +1 more source

Laser‐Written Ruby Emitters in MXenes: Transforming Residual Impurities Into Integrated Narrowband Luminescent Probes

Advanced Optical Materials, EarlyView.
Laser writing converts residual aluminum in MXenes into bright ruby emitters with laser‐like photoluminescence. This approach provides a universal optical tool for mapping material purity. Luminescence sensitivity to temperature, pressure and chemical environment turns synthesis liabilities into assets, enabling the formation of built‐in optical probes
Ilya A. Zavidovskiy, Alexander V. Syuy, Dmitry I. Yakubovsky, Andrey A. Vyshnevyy, Georgy A. Ermolaev, Gleb I. Tselikov, Valery G. Yakunin, Pavel V. Evdokimov, Alexey Kuznetsov, Valeriy M. Kondratev, Dmitrii S. Zimbovskii, Olesya O. Kapitanova, Mikhail S. Gurin, Vladislav V. Burdin, Fedor M. Maksimov, Vladimir G. Leiman, Dmitry S. Shtarev, Alexander I. Chernov, Victor Yu. Timoshenko, Aleksey V. Arsenin, Valentyn S. Volkov, Sergey M. Novikov, Alexey D. Bolshakov   +22 more
wiley   +1 more source

Quantification of morpho-hemodynamic changes in unruptured intracranial aneurysms with irregular pulsation during the cardiac cycle using 4D-CTA. [PDF]

Front Neurol
Chen S, Zhang W, Cheng Y, Wang G, Lv N.
europepmc   +1 more source

Interplay between Ca2+ cycling and mitochondrial permeability transition pores promotes reperfusion-induced injury of cardiac myocytes

, 2010
Yaser Abdallah, S KASSECKERT, Wisam Iraqi, Maher Said, Tayyab Shahzad, Ali Erdoğan, Christiane Neuhof, Dursun Gündüz, Klaus‐Dieter Schlüter, Harald Tillmanns, H. M. Piper, H. Peter Reusch, Yury Ladilov   +12 more
openalex   +1 more source