Polyetheretherketone implants with hierarchical porous structure for boosted osseointegration DOI Creative Commons
Zhiyong Chen, Yu Chen, Yang Wang

и другие.

Biomaterials Research, Год журнала: 2023, Номер 27(1)

Опубликована: Фев. 9, 2023

Good osseointegration is the key to long-term stability of bone implants. Thermoplastic polyetheretherketone (PEEK) has been widely used in orthopedics; however, its inherent biological inertia causes fibrous tissue wrap surface, which leads poor and thus greatly limits clinical applications.Herein, we developed a facile yet effective surface modification strategy. A commonly sulfonation coupled with "cold pressing" treatment presence porogenic agent formed three-dimensional hierarchical porous structure on PEEK surface. Subsequently, effects vitro adhesion, proliferation differentiation rat marrow-derived mesenchymal stem cells (BMSCs) were evaluated. Finally, osteoinduction surface-porous implant examined distal femoral defect model.In results showed that did not significantly affect mechanical performance cytocompatibility substance, modified substrate provided space for cellular ingrowth enhanced osteogenic mineralization BMSCs. In vivo tests demonstrated could effectively promote new formation had higher bone-implant contact rate, thereby achieving good integration surrounding host bone. addition, this technique was also successfully medical interbody fusion cage.The present study indicates topological morphology plays pivotal role determining strategy by us expected achieve practical applications quickly.

Язык: Английский

Recent advances in regenerative biomaterials DOI
Dinglingge Cao, Jiandong Ding

Regenerative Biomaterials, Год журнала: 2022, Номер 9

Опубликована: Янв. 1, 2022

Nowadays, biomaterials have evolved from the inert supports or functional substitutes to bioactive materials able trigger promote regenerative potential of tissues. The interdisciplinary progress has broadened definition 'biomaterials', and a typical new insight is concept tissue induction biomaterials. term 'regenerative biomaterials' thus contents this article are relevant yet beyond This review summarizes recent medical including metals, ceramics, hydrogels, other polymers bio-derived materials. As application aspects concerned, introduces for bone cartilage regeneration, cardiovascular repair, 3D bioprinting, wound healing cosmetology. Cell-biomaterial interactions highlighted. Since global pandemic coronavirus disease 2019, particularly mentions public health emergency. In last section, perspectives suggested: (i) creation source innovation; (ii) modification existing an effective strategy performance improvement; (iii) biomaterial degradation regeneration required be harmonious with each other; (iv) host responses can significantly influence clinical outcomes; (v) long-term outcomes should paid more attention to; (vi) noninvasive approaches monitoring

Язык: Английский

Процитировано

146

Biomaterials for Tissue Engineering Applications and Current Updates in the Field: A Comprehensive Review DOI Creative Commons
Alaa Emad Eldeeb,

Salwa Salah,

Nermeen A. Elkasabgy

и другие.

AAPS PharmSciTech, Год журнала: 2022, Номер 23(7)

Опубликована: Сен. 26, 2022

Abstract Tissue engineering has emerged as an interesting field nowadays; it focuses on accelerating the auto-healing mechanism of tissues rather than organ transplantation. It involves implanting In Vitro cultured initiative tissue or a scaffold loaded with regenerating ingredients at damaged area. Both techniques are based use biodegradable , biocompatible polymers scaffolding materials which either derived from natural (e.g. alginates, celluloses, and zein) synthetic sources PLGA, PCL, PLA). This review discusses in detail recent applications different biomaterials highlighting targeted besides vitro vivo key findings. As well, smart chitosan) fascinating candidates they capable elucidating chemical physical transformation response to external stimuli temperature, pH, magnetic electric fields). Recent trends summarized this stem cells, 3D printing techniques, most 4D approach relies produce dynamic resembling tissue. Furthermore, application advanced provides hope for researchers recognize COVID-19/host interaction, also, presents promising solution rejuvenate destroyed lung tissues. Graphical abstract

Язык: Английский

Процитировано

94

Magnesium Gradient‐Based Hierarchical Scaffold for Dual‐Lineage Regeneration of Osteochondral Defect DOI
Chenyuan Gao, Wenli Dai, Xinyu Wang

и другие.

Advanced Functional Materials, Год журнала: 2023, Номер 33(43)

Опубликована: Июль 2, 2023

Abstract Osteochondral regeneration remains a great challenge due to the limited self‐healing ability and complexity of its hierarchical structure composition. Mg 2+ hypoxia are two effective modulators in boosting chondrogenesis. To this end, double‐layered scaffold (D) consisting hydrogel layer on porous cryogel is fabricated mimic osteochondral tissue. An gradient incorporated into with hypoxia‐mimicking deferoxamine (DFO) embedded (D‐Mg‐DFO), which remarkably augments dual‐lineage both cartilage subchondral bone. The higher supplementation from upper hydrogel, associated situation small pore size, exhibits promotive effects chondrogenic differentiation. lower bottom cryogel, interconnected macroporous structure, achieves multiple contributions stem cell migration bone marrow cavity, matrix mineralization, osteogenesis. Furthermore, rabbits’ trochlea defects established evaluate regenerative outcome. Compared control scaffolds containing only or DFO, D‐Mg‐DFO presents best effect under synergistic contribution factors. Overall, work provides new design toward an repair defect.

Язык: Английский

Процитировано

65

Electrospun organic/inorganic hybrid nanofibers for accelerating wound healing: a review DOI
Sai Yan,

Yuqi Qian,

Marjan Haghayegh

и другие.

Journal of Materials Chemistry B, Год журнала: 2024, Номер 12(13), С. 3171 - 3190

Опубликована: Янв. 1, 2024

This review summarizes fabrication strategies and manifold applications of electrospun organic/inorganic hybrid nanofibers in promoting the wound healing process.

Язык: Английский

Процитировано

39

Extracellular matrix-derived materials for tissue engineering and regenerative medicine: A journey from isolation to characterization and application DOI Creative Commons
Helena Vilaça-Faria, Jennifer Noro, Rui L. Reis

и другие.

Bioactive Materials, Год журнала: 2024, Номер 34, С. 494 - 519

Опубликована: Янв. 21, 2024

Biomaterial choice is an essential step during the development tissue engineering and regenerative medicine (TERM) applications. The selected biomaterial must present properties allowing physiological-like recapitulation of several processes that lead to reestablishment homeostatic or organ function. Biomaterials derived from extracellular matrix (ECM) many such their use in field has been steadily increasing. Considering this growing importance, it becomes imperative provide a comprehensive overview ECM biomaterials, encompassing sourcing, processing, integration into TERM This review compiles main strategies used isolate process ECM-derived biomaterials as well different techniques for its characterization, namely biochemical chemical, physical, morphological, biological. Lastly, some applications are explored discussed.

Язык: Английский

Процитировано

35

Effects of Silk Fibroin Hydrogel Degradation on the Proliferation and Chondrogenesis of Encapsulated Stem Cells DOI

Tianhao Zhu,

Guolong Cai,

Weikun Zhao

и другие.

Biomacromolecules, Год журнала: 2025, Номер unknown

Опубликована: Янв. 22, 2025

Silk fibroin (SF) hydrogels are widely used in three-dimensional (3D) cell culture and tissue repair. Despite their importance, few studies have focused on regulating degradation further revealing the effects of process encapsulated behaviors. Herein, SF with equivalent initial properties different rates were prepared by adjusting ratios between hydrogel-encapsulated normal microspheres (MSN) enzyme-loaded (MSE). Further, experiments revealed that moderately accelerating hydrogel obviously improved proliferation MSCs during 7 days culture. Slightly promoted MSC chondrogenesis. However, too rapid a was unfavorable for these The relevant expected to provide useful strategies also afford new references development excellent other protein-based biomaterials cartilage regeneration.

Язык: Английский

Процитировано

4

3D-Printed Porous Scaffolds of Hydrogels Modified with TGF-β1 Binding Peptides to Promote In Vivo Cartilage Regeneration and Animal Gait Restoration DOI
Xiaoquan Ding, Jingming Gao,

Xiaoye Yu

и другие.

ACS Applied Materials & Interfaces, Год журнала: 2022, Номер 14(14), С. 15982 - 15995

Опубликована: Апрель 1, 2022

The treatment of cartilage injury and osteoarthritis has been a classic problem for many years. idea in situ tissue regeneration paves way osteochondral repair vivo. Herein, hydrogel scaffold linked with bioactive peptides that can selectively adsorb transforming growth factor β1 (TGF-β1) was hypothesized to not only afford cell ingrowth space but also induce the endogenous TGF-β1 recruitment chondrogenesis promotion. In this study, bilayered porous scaffolds gelatin methacryloyl (GelMA) hydrogels as matrix were constructed via three-dimensional (3D) printing, which upper layer covalently bound lower blended hydroxyapatite subchondral regeneration. showed promising therapeutic efficacy proved by osteogenic induction vitro rats particular, animal gait behavior recovered after regeneration, corresponding analysis demonstrated promotion induced binding peptides.

Язык: Английский

Процитировано

59

Blending strategy to modify PEEK-based orthopedic implants DOI
Zhiyong Chen, Yu Chen, Jiandong Ding

и другие.

Composites Part B Engineering, Год журнала: 2022, Номер 250, С. 110427 - 110427

Опубликована: Ноя. 17, 2022

Язык: Английский

Процитировано

45

Is polydopamine beneficial for cells on the modified surface? DOI Creative Commons
Yue Yu, Xiu‐Li Wang, Yi Zhu

и другие.

Regenerative Biomaterials, Год журнала: 2022, Номер 9

Опубликована: Янв. 1, 2022

Abstract Since the pioneering work of Messersmith’s group discovering that polydopamine (PDA) can serve to adhere many types materials, PDA coating has, as a biomimetic approach, been widely used enhance cell adhesion by surface modification bind biologically active substances bioinert substrate. Nevertheless, it is unclear whether or not itself beneficial for cells. Herein, we report decreases viability cells under normal culture and observation conditions. Such an inhibition effect was caused free any inherent cytotoxicity this chemical substance but contact-dependent phenomenon. Human bone marrow mesenchymal stem were employed default type tissue plates substrate, although some other substrates also examined confirm universality such ‘abnormal’ phenomenon superstar molecule. The on exhibited time dependence, decreased during found come from decrease number instead average per cell. led less global migration yet more local motility Based concept ‘background adhesion’ without significant motifs specific adhesion, supposed adhered better, which influenced mobility eventually proliferation. Hence, behaviors are reasonable, albeit bit complicated.

Язык: Английский

Процитировано

43

Mechanism of polymer composite-based nanomaterial for biomedical applications DOI Creative Commons

Nadeem Hussain Solangi,

Rama Rao Karri, Nabisab Mujawar Mubarak

и другие.

Advanced Industrial and Engineering Polymer Research, Год журнала: 2023, Номер unknown

Опубликована: Сен. 1, 2023

Recent developments in nanomaterials have come to extensive use various fields, especially the biomedical industry. Numerous significant obstacles still need be overcome, particularly those about utilizing science, before they can used for medicinal purposes. Major issues biomedicine include biological functioning, harmony, toxic effects, and nano-bio surface properties. Thus, researchers may cutting-edge characterization approaches study applications. Two-dimensional polymers are crucial components of systems. Polymer-based flexible more resistant chemical attack than other NPs. Polymers easily form composite or functionalization with NPs improve their performance compared traditional The current review article discussed nanomaterial performance, including carbon nanotubes (CNTs), graphene, MXene polymers-based state area is illustrated this summary article, along applications significance approaches. advanced methods examining interior geometry, structure, morphology piece writing, Transmission electron microscopy (TEM), Scanning electronic (SEM), Atomic Force Microscopy (AFM), Magnetic resonance force (MRFM) X-ray diffraction (XRD). Finally, authors associated

Язык: Английский

Процитировано

41