Degradability and biocompatibility of Mg–Zn–Ca alloy wires for surgical staple with fine-grained microstructure and dispersed nanoprecipitates
Source abstract
Abstract
This study successfully fabricated Mg-Zn-Ca alloy wires with a refined grain structure and dispersed nano-sized secondary phases through a process combining hot extrusion with multi-pass cold drawing and intermediate annealing. Microstructural analysis confirmed significant grain refinement and the formation of nano-scale Mg-Zn phases. Degradation tests in simulated intestinal fluid (SIF) demonstrated that the continuous and dense protective layer formed by nano-sized secondary phases effectively regulated the degradation rate, leading to a steady and controllable degradation behavior. In vitro biocompatibility evaluation revealed that the Mg alloy wires exhibited no significant cytotoxicity toward colonic epithelial cells and demonstrated favorable hemocompatibility. This study confirms that the synergistic regulation of fine grains and nano-phases is an effective strategy for improving the overall performance of biodegradable Mg alloy wires, providing both theoretical and experimental support for their application in surgical staples.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Magnesium Alloys: Properties and Applications · Orthopaedic implants and arthroplasty · Bone Tissue Engineering Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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