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Laser‐Assisted Processing and Modification of Bioactive Glasses: A Review

Advanced Healthcare Materials, EarlyView.
Laser technologies provide powerful tools to process and transform bioactive glasses for advanced biomedical applications. This review discusses laser‐matter interaction mechanisms, laser surface engineering, and laser‐assisted fabrication of scaffolds and nanofibers.
Antonio Riveiro, Mario González‐Quintas, Mónica Fernández‐Arias, Jesús del Val, Félix Quintero, Rafael Comesaña, Fernando Lusquiños, Julian R. Jones, Juan Pou   +8 more
wiley   +1 more source

Understanding the Effects of Conductive Polymer Electrode Coating on Recorded Neural Signals

Advanced Healthcare Materials, EarlyView.
Conductive polymer coatings are widely explored to improve the quality of signals recorded with chronically implanted neural electrodes, offering enhanced biocompatibility along with reduced electrode impedance. Combining computational modelling and data from PEDOT:PTS coated and PtIr electrodes in rats, we show that improvements in signal quality with
Karthik Sridhar, Judith Evers, Alexandre Trotier, Manus Biggs, Madeleine M. Lowery   +4 more
wiley   +1 more source

Biomimetic Copper‐Doped Nano‐Aluminum Adjuvant Potentiates Therapy in Chemoresistant Acute Myeloid Leukemia

Advanced Healthcare Materials, EarlyView.
We developed a novel copper‐doped aluminum nano‐adjuvant (CuNA) to overcome cytarabine resistance in acute myeloid leukemia (AML). CuNA effectively sensitizes drug‐resistant AML cells to cytarabine by inducing mitochondrial dysfunction and inhibiting HMGCR/GPX4 to amplify ferroptosis.
Chao He, Lingxiao Zhang, Yue Xiong, Yu Wang, Yuqing Zeng, Dandan Su, Ran Wang, Ying Li, Hongbo Chen, Fang Cheng, Zhi Ping Xu   +10 more
wiley   +1 more source

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Bifunctional nanoprecipitates strengthen and ductilize a medium-entropy alloy

Nature, 2021
Single-phase high- and medium-entropy alloys with face-centred cubic (fcc) structure can exhibit high tensile ductility1,2 and excellent toughness2,3, but their room-temperature strengths are low1-3. Dislocation obstacles such as grain boundaries4, twin boundaries5, solute atoms6 and precipitates7-9 can increase strength.
Ying Yang, Tianyi Chen, Lizhen Tan, Jonathan D. Poplawsky, Ke An, Yanli Wang, German D. Samolyuk, Ken Littrell, Andrew R. Lupini, Albina Borisevich, Easo P. George   +10 more
openaire   +4 more sources

Deformation twinning in Ti48.9Zr32.0Nb12.6Ta6.5 medium entropy alloy

Materials Science and Engineering: A, 2021
Abstract The {112} β deformation twinning has never been confirmed in refractory high or medium entropy alloys (HEAs or MEAs) at room temperature. Here a Ti48.9Zr32.0Nb12.6Ta6.5 MEA shows {112} β twins was designed based on the d-electron alloy design method learned from β Ti alloys.
Xianbing Zhang, Weilin Wang, Jialin Wu, Shubin Wang, Jian Sun, Jing Yang Chung, Stephen J. Pennycook   +6 more
openaire   +1 more source

Shock-induced amorphization in medium entropy alloy CoCrNi

Scripta Materialia, 2022
Abstract We perform molecular dynamics simulations to investigate shock-induced amorphization in CoCrNi, a medium entropy alloy (MEA) and its mean-field variant without lattice distortion. We show that a critical velocity exists above which amorphization occurs. At a low shock velocity of 800 m/s, dislocation slip and twins dominate and amorphization
Wu-Rong Jian, Zhuocheng Xie, Shuozhi Xu, Xiaohu Yao, Irene J. Beyerlein   +4 more
openaire   +1 more source

AlxCrFeNi medium entropy alloys with high damping capacity

Journal of Alloys and Compounds, 2021
Abstract In this paper, the phase constituent, damping and compressive properties of as-cast AlxCrFeNi (x = 0.3, 0.35, 0.37, 0.4, 0.5) medium entropy alloys (MEAs) were studied. The results show that the phase constituent changes gradually from a face-centered cubic (FCC) dominated structure to a single body-centered cubic (BCC) structure when x ...
Hongding Wang, Wei Zhang, Peng Gao, Qingchun Xiang, Yingdong Qu, Jingchang Cheng, Yinglei Ren, Bo Yu, Keqiang Qiu   +8 more
openaire   +1 more source

Plastic deformation mechanism of CoCrxNi medium entropy alloys

Materials Science and Engineering: A, 2021
Abstract The mechanical properties of multi-principal element alloys show a big difference with or without Cr additions. In this work, the roles of Cr on the mechanical properties, especially the plastic deformation mechanism of CoCrxNi alloys are systematically investigated.
Jiaohui Yan, Wei Fang, Jiaxin Huang, Jinfei Zhang, Ruobin Chang, Xin Zhang, Baoxi Liu, Jianhang Feng, Fuxing Yin   +8 more
openaire   +1 more source

Microstructural Characterization of Medium Entropy Alloy Thin Films

SSRN Electronic Journal, 2019
This study presents detailed microstructural investigations on single and bilayer thin films of two medium entropy alloys (MEAs) synthesized using magnetron sputter deposition. Single layer thin films of CoCrFeNi and AlCoCrFe show single-phase face-centered cubic (fcc) and body-centered (bcc) structure, respectively. The bilayer thin film consisting of
Chawake, N.Zalesak, J.Gammer, Ch.Franz, R.Cordill, M.Kim, J.Eckert, J.   +7 more
openaire   +1 more source