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The regeneration of periodontal bone defects continues to be an essential therapeutic concern in dental biomaterials. Numerous biomaterials have been utilized in this sector so far. However, the immune response and vascularity in defect regions may be disregarded when evaluating the effectiveness of biomaterials for bone repair. Among several regenerative treatments, the most recent technique of in situ tissue engineering stands out for its ability to replicate endogenous restorative processes by combining scaffold with particular growth factors. Regenerative medicine solutions that combine biomaterials/scaffolds, cells, and bioactive substances have attracted significant interest, particularly for bone repair and regeneration. Dental stem cells (DSCs) share the same progenitor and immunomodulatory properties as other types of MSCs, and because they are easily isolable, they are regarded as desirable therapeutic agents in regenerative dentistry. Recent research has demonstrated that DSCs sown on newly designed synthetic bio-material scaffolds preserve their proliferative capacity while exhibiting increased differentiation and immuno-suppressive capabilities. As researchers discovered how short peptide sequences modify the adhesion and proliferative capacities of scaffolds by activating or inhibiting conventional osteogenic pathways, the scaffolds became more effective at priming MSCs. In this review, the many components of tissue engineering applied to bone engineering will be examined, and the impact of biomaterials on periodontal regeneration and bone cellular biology/molecular genetics will be addressed and updated.
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http://dx.doi.org/10.3390/medicina60050773 | DOI Listing |
ACS Appl Mater Interfaces
September 2025
Department of Materials Science and Engineering, College of Engineering, Texas A&M University, College Station, Texas 77843, United States.
Hydrogel-based bioinks are widely adopted in digital light processing (DLP) 3D printing. Modulating their mechanical properties is especially beneficial in biomedical applications, such as directing cell activity toward tissue regeneration and healing. However, in both monolithic and granular hydrogels, the tunability of mechanical properties is limited to parameters such as cross-linking or packing density.
View Article and Find Full Text PDFJ Am Chem Soc
September 2025
Department of Chemistry and the Hong Kong Branch of Chinese National Engineering Research Centre for Tissue Restoration & Reconstruction, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong SAR 999077, China.
Described here is an efficient protocol for intermolecular [2 + 2] cycloaddition of unactivated and unsymmetrical allenes and alkynes with unusual regioselectivity, counterintuitively favoring the most hindered isomer. CpRu(MeCN)PF served as a uniquely effective catalyst, providing diverse 3-alkylidenecyclobutenes with a broad scope and good functional group compatibility. Both experiments and DFT studies provided important insights into the mechanism, particularly the unusual regioselectivity.
View Article and Find Full Text PDFJ Vis Exp
August 2025
Department of Oncology, Division of Pediatric Oncology and Institute for Cell Engineering, The Johns Hopkins University School of Medicine;
Human cord blood (CB) myeloid progenitor reprogramming to a high-fidelity human induced pluripotent stem cell (hiPSC) state can be achieved using non-integrating episomal vectors and stromal signals. These conventional, primed CB-hiPSC lines can subsequently be chemically reverted with high efficiencies to a blastomere-like Tankyrase/PARP Inhibitor-Regulated Naive Stem Cell (TIRN-SC) state with functional totipotency. PARP-regulated TIRN-SCs are human stem cells with high epigenetic plasticity, stable epigenomic imprints, and have greater differentiation potency than conventional, lineage-primed hiPSCs.
View Article and Find Full Text PDFMacromol Rapid Commun
September 2025
Key Laboratory of Bio-based Material Science and Technology of Ministry of Education, Northeast Forestry University, Harbin, P. R. China.
Rapid advancement of flexible electronics has generated a demand for sustainable materials. Cellulose, a renewable biopolymer, exhibits exceptional mechanical strength, customizable properties, biodegradability, and biocompatibility. These attributes are largely due to its hierarchical nanostructures and modifiable surface chemistry.
View Article and Find Full Text PDFACS Nano
September 2025
Department of Electrical and Computer Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea.
Vagus nerve stimulation (VNS) is a promising therapy for neurological and inflammatory disorders across multiple organ systems. However, conventional rigid interfaces fail to accommodate dynamic mechanical environments, leading to mechanical mismatches, tissue irritation, and unstable long-term interfaces. Although soft neural interfaces address these limitations, maintaining mechanical durability and stable electrical performance remains challenging.
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