Exploring the Zein/58S Bioactive Glass Nanocomposite for Enhanced Bone Tissue Engineering: A Comprehensive Investigation of Structural, Chemical, Biological, and Osteogenic Properties through in Vitro and in Vivo Studies
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引用次数: 0
Abstract
Bone tissue engineering has emerged as an innovative approach for repairing and regenerating bone defects. This study focuses on the development of new scaffolds with key attributes, including biocompatibility, bioactivity, biodegradability, cost effectiveness, and safety. In this investigation, we designed and synthesized a novel nanofibrous scaffold using the electrospinning method, incorporating zein/58S bioactive glass. The manufactured scaffolds underwent comprehensive characterization for morphology, sustainability, and chemical structure. Moreover, to demonstrate their efficacy in bone healing, we quantified essential factors such as biodegradation rate, contact angle, mechanical strength, bioactivity, cytotoxicity, and cell adherence. Following that, the osteogenesis effect of scaffolds was evaluated in vitro as well as in vivo through implanting them in the calvarium of the rats. Specifically, we conducted detailed investigations using alizarin red staining, real-time PCR, and histopathology, along with immunohistochemistry assessments. Based on our results, the fiber diameters were about 160.2 ± 7 nm, 163.5 ± 38.3 nm, and 164 ± 39.3 nm, respectively for zein, 2%BG, and 4%BG mats. Incorporation of 58 S increased contact angle from 96.03 ± 0.7° to 51.7 ± 2.02°, and consequently improved cell adhesion. The degradation rate of all scaffolds was about 20%, and chemical analysis (FTIR) confirmed the presence of 58 S in zein nanoscale mats. Tensile analysis presented that applying bioactive glass rescued Young’s modulus from 0.34 ± 0.07 to 0.08 ± 0.009 MPa. Meanwhile, other results revealed that 4%BG scaffolds exhibit desirable properties, being porous, safe, bioactive, and osteogenic. These findings robustly affirm the competence and potential of the manufactured nanofibrous scaffold containing 4%BG for applications in bone tissue engineering.
Graphical Abstract
The schematic diagram illustrating different stages of the study, including; zein/BG scaffold synthesis, characterizations and osteogenesis evaluation in vitro and in vivo
期刊介绍：
The Journal of Polymers and the Environment fills the need for an international forum in this diverse and rapidly expanding field. The journal serves a crucial role for the publication of information from a wide range of disciplines and is a central outlet for the publication of high-quality peer-reviewed original papers, review articles and short communications. The journal is intentionally interdisciplinary in regard to contributions and covers the following subjects - polymers, environmentally degradable polymers, and degradation pathways: biological, photochemical, oxidative and hydrolytic; new environmental materials: derived by chemical and biosynthetic routes; environmental blends and composites; developments in processing and reactive processing of environmental polymers; characterization of environmental materials: mechanical, physical, thermal, rheological, morphological, and others; recyclable polymers and plastics recycling environmental testing: in-laboratory simulations, outdoor exposures, and standardization of methodologies; environmental fate: end products and intermediates of biodegradation; microbiology and enzymology of polymer biodegradation; solid-waste management and public legislation specific to environmental polymers; and other related topics.
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