Results 121 to 130 of about 63,723 (218)

A Pathology‐Instructed Theranostic Platform with Mechanoadaptive and ROS‐Powered Nanobreathing Functions for Precision Myocardial Repair

Advanced Science, EarlyView.
We developed a pH responsive theranostic serum albumin hydrogel named BST, functionalized with MRI and CT probes and loaded with mitochondria targeted CAT‐SOD nanogels, that rapidly self repairs and mechanically stabilizes the infarcted myocardium, releases therapeutic nanogels and albumin under hypoxia induced acidosis to clear mitochondrial ROS ...
Zheng Luo, Cui Yang, Liuzhou Mao, Panqin Ma, Chiyu Jia, Karen Yuanting Tang, Xian Jun Loh, Yun‐Long Wu   +7 more
wiley   +1 more source

Diagnostic performance of vector flow imaging-derived wall shear stress and radiofrequency echo-tracking-derived arterial stiffness indices in severe carotid stenosis. [PDF]

Ultrasonography
Yaylı N, Kılıç ACK, Biçer BK, Öncü F, Altıparmak T, Cerit MN, Şendur HN, Çağlayan HZB, Akkan MK, Kılıç HK, Oktar SÖ, Önal AB, Nazlıel B, Ilgıt ET.   +13 more
europepmc   +1 more source

A Hydrogen Sulfide–Releasing Dynamic Hydrogel Modulates Coordinated Neurovascular, Immune, and Angiogenic Responses for Scar‐Suppressed Diabetic Wound Repair

Advanced Science, EarlyView.
ROS‐Responsive H2S Hydrogel (HAPPF) Coordinated Regeneration for High‐Quality Diabetic Wound Repair.A self‐regulating dynamic hydrogel is developed to deliver a fluorogenic H2S donor in response to excessive ROS. Released H2S acts as a master regulator to resolve chronic inflammation (M2 polarization), restore VEGF‐driven angiogenesis, and rebalance ...
Xuyang Ning, Ziqiang Zhou, Bangming Li, Hong Lu, Haoyang Wen, Zhoulong Huang, Gang Li, Ping Hu   +7 more
wiley   +1 more source

Experimental comparisons of optical coherence tomography-based versus angiography-based time-averaged wall shear stress estimations. [PDF]

Int J Cardiovasc Imaging
Naser J, Fogell NA, Patel M, Yang P, Kalaravy M, Savvopoulos F, Krams R, Aben JP, de Silva R.   +8 more
europepmc   +1 more source

Bioinspired Passive Flow Routing to Mitigate Thrombosis in Prosthetic Heart Valves and Cardiovascular Devices

Advanced Science, EarlyView.
Bioinspired passive flow routing mitigates thrombosis in cardiovascular devices by redirecting a small fraction of forward flow into stagnation‐prone regions. Inspired by avian alula and aircraft slat mechanisms, strategically placed routing channels restore washout around mechanical heart valves, reducing low‐shear exposure by four orders of magnitude
Yevgeniy Kreinin, Mark Epshtein, Yahel Talmon, Tirosh Mekler, Itay Or, Mahli Raad, Gil Bolotin, Josué Sznitman, Netanel Korin   +8 more
wiley   +1 more source

Integrated Assessment of Wall Shear Stress-Related Hemodynamic Parameters in Abdominal Aortic Aneurysms: A Retrospective Cross-Sectional Study on Ruptured Cases. [PDF]

Int J Numer Method Biomed Eng
Mutlu O, Khan RA, Salman HE, El-Menyar A, Yavuz MM, Chowdhury MEH, Al-Thani H, Yalcin HC.   +7 more
europepmc   +1 more source

Chemically Gradient Ordered Nanodomains Enable Large Tensile Ductility in Gigapascal Lightweight Refractory High‐Entropy Alloys

Advanced Science, EarlyView.
A high‐strength lightweight refractory high‐entropy alloy achieves extraordinary ductility owing to the introduction of coherent chemically gradient ordered nanodomains (CGONs). The CGONs not only serve as effective barriers to dislocation motion (strengthening) but also significantly promote dislocation nucleation and multiplication (ductilizing) upon
Wei Zhang, Dingshun Yan, Yong Zhang, Zhiming Li   +3 more
wiley   +1 more source

Low Wall Shear Stress Promotes Atheroma via Arterial Iron Accumulation. [PDF]

Arterioscler Thromb Vasc Biol
Zheng L, Zhang Z, Liu Y, Cheng C, Zhao B, Ji R, Chen Z, Yang L, Cai J, Li K, Qiao T.   +10 more
europepmc   +1 more source

A Smart Fluid‐Hydraulic System Based on MRF Valve Control and Its Application in Flexible Grasping

Advanced Science, EarlyView.
This study introduces a smart fluid hydraulic system using MRF valve control for flexible gripping. An MRF‐MSV with an integrated excitation coil and micro‐textured damping channels is designed and validated; micro‐texturing increases hydraulic resistance. Coupled with a soft actuator, the MRF‐MSV enables dynamic bending and grasping.
Linfeng Huo, Hui Ji, Ruidong Hong, Songlin Nie, Fanglong Yin, Zhonghai Ma   +5 more
wiley   +1 more source

On the Numerical Evaluation of Wall Shear Stress Using the Finite Element Method. [PDF]

Int J Numer Method Biomed Eng
Brunátová J, Dokken JS, Valen-Sendstad K, Hron J.   +3 more
europepmc   +1 more source