A scaffold is a crucial biological substitute designed to aid the treatment of damaged tissue caused by trauma and disease. Various scaffolds are developed with different materials, known as biomaterials, and have shown to be a potential tool to facilitate in vitro cell growth, proliferation, and differentiation. Among the materials studied, carbon materials are potential biomaterials that can be used to develop scaffolds for cell growth. Recently, many researchers have attempted to build a scaffold following the origin of the tissue cell by mimicking the pattern of their extracellular matrix (ECM). In addition, extensive studies were performed on the various parameters that could influence cell behaviour. Previous studies have shown that various factors should be considered in scaffold production, including the porosity, pore size, topography, mechanical properties, wettability, and electroconductivity, which are essential in facilitating cellular response on the scaffold. These interferential factors will help determine the appropriate architecture of the carbon-based scaffold, influencing stem cell (SC) response. Hence, this paper reviews the potential of carbon as a biomaterial for scaffold development. This paper also discusses several crucial factors that can influence the feasibility of the carbon-based scaffold architecture in supporting the efficacy and viability of SCs.
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http://dx.doi.org/10.3390/polym13234058 | DOI Listing |
Nat Commun
January 2025
Department of Chemistry, HKU-CAS Joint Laboratory on New Materials and Shanghai-Hong Kong Joint Laboratory on Chemical Synthesis, The University of Hong Kong, Hong Kong, China.
High-spin carbon-based polyradicals exhibit significant potential for applications in quantum information storage and sensing; however, their practical application is hampered by limited structural diversity and chemical instability. Here, we report a straightforward synthetic and isolation method for synthesizing a nonalternant nanographene (1) with a triplet ground state. Moving beyond the classic m-xylylene scaffold for high-spin organic molecules, seven-five-seven (7-5-7)-membered rings are introduced to create stable high-spin diradicals with half-lives (t) as long as 101 days.
View Article and Find Full Text PDFACS Biomater Sci Eng
January 2025
Department of Orthopedics, Suzhou Wujiang District Hospital of Traditional Chinese Medicine (Suzhou Wujiang District Second People's Hospital), Suzhou 215200, China.
Rotator cuff tears are the most common conditions in sports medicine and attract increasing attention. Scar tissue healing at the tendon-bone interface results in a high rate of retears, making it a major challenge to enhance the healing of the rotator cuff tendon-bone interface. Biomaterials currently employed for tendon-bone healing in rotator cuff tears still exhibit limited efficacy.
View Article and Find Full Text PDFACS Nano
January 2025
Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials and Devices, Soochow University, Suzhou 215123, China.
Thermally activated delayed fluorescence (TADF)-based nanoprobes are promising candidates as bioimaging agents, yet the fine-tuning of their photophysical properties through the modulation of the surrounding matrices remains largely unexplored. Herein, we report the development of polypeptide-TADF nanoprobes, where the rigid, α-helical polypeptide scaffold plays a critical role in enhancing the emission intensity and lifetime of the TADF fluorophore for bioimaging. The α-helical scaffolds not only spatially separated TADF molecules to avoid self-quenching but also anchored the dyes with minimized rotation and vibration.
View Article and Find Full Text PDFPolymers (Basel)
November 2024
Department of Biomedical Engineering & Biotechnology, Khalifa University of Science and Technology, Abu Dhabi 127788, United Arab Emirates.
Carbon-based polymeric nanocomposite hydrogels (NCHs) represent a groundbreaking advancement in biomedical materials by integrating nanoparticles such as graphene, carbon nanotubes (CNTs), carbon dots (CDs), and activated charcoal (AC) into polymeric matrices. These nanocomposites significantly enhance the mechanical strength, electrical conductivity, and bioactivity of hydrogels, making them highly effective for drug delivery, tissue engineering (TE), bioinks for 3D Bioprinting, and wound healing applications. Graphene improves the mechanical and electrical properties of hydrogels, facilitating advanced tissue scaffolding and drug delivery systems.
View Article and Find Full Text PDFChemistry
January 2025
Department of Chemistry and Pharmacy, Friedrich-Alexander-University Erlangen-Nuremberg, Organic Chemistry, Nikolaus-Fiebiger-Str. 10, 91058, Erlangen, Germany.
The synthesis of unprecedented triskelion-shaped hexa-peri-hexabenzocoronenes with C, C or D symmertry is reported. We present a new, five step synthetic access to tris-iodinated HBC derivatives carrying different solubilizing moieties (tert-butyl and mesityl), which serve as suitable building blocks for further functionalization. These molecules can undergo Sonogashira cross coupling reactions to obtain a series of seven ethynyl tris-substituted HBCs.
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