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Implant Corrosion Protection
In article number 2106056, Yufeng Zheng, Pan Xiong, Yunsong Liu, Yongsheng Zhou, and co‐workers construct a pH stimuli‐responsive silk‐based halloysite nanotube/phytic acid self‐healing coating to slow down the corrosion rate of Mg‐1Ca alloy. The coating exhibits appealing active corrosion protection, superior biocompatibility and osteogenic ability.
Mg‐Ca alloys have emerged as a promising research direction for biomedical implants in the orthopedic field. However, their clinical use is deterred by their fast corrosion rate. In this work, a pH stimuli‐responsive silk‐halloysite (HNT)/phytic acid (PA) self‐healing coating (Silk‐HNT/PA) is constructed to slow down the corrosion rate of Mg‐1Ca alloy and its cell viability and osteogenic differentiation...
The rational synthesis of single‐layer noble metal directly anchored on support materials is an elusive target to accomplish for a long time. This paper reports well‐defined single‐layer Pt (Pt‐SL) clusters anchored on ultrathin TiO2 nanosheets—as a new frontier in electrocatalysis. The structural evolution of Pt‐SL/TiO2 via self‐assembly of single Pt atoms (Pt‐SA) is systematically recorded. Significantly,...
The safety of metal oxide (MOx) nanoparticles (NPs) has been highly concerned because of their wide application and potential toxicological injury. The safe‐by‐design strategy is usually developed to make safer MOx NPs based on regulation of their physicochemical properties. In the present study, manganese oxide (Mn3O4) NPs, as a representative of insoluble toxic MOx NPs, are doped with a series of...
Ice accumulation poses a series of severe issues in daily life. Inspired by the nature, superwettability surfaces have attracted great interests from fundamental research to anti‐icing and ice‐phobic applications. Here, recently published literature about the mechanism of ice prevention is reviewed, with a focus on the anti‐icing and ice‐phobic mechanisms, encompassing the behavior of condensate microdrops...
Simulated sunlight has promise as a light source able to alleviate the severe pain associated with patients during photodynamic therapy (PDT); however, low sunlight utilization efficiency of traditional photosensitizers dramatically limits its application. Titanium‐dioxide‐nanoparticle–gold‐nanocluster–graphene (TAG) heterogeneous nanocomposites are designed to efficiently utilize simulated sunlight...
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