Publications by authors named "R Vasita"

Article Synopsis
  • - The study highlights the importance of scaffold design in tissue engineering, specifically focusing on how different micropatterned substrates influence cell behavior, particularly pre-osteoblasts (MC3T3-E1 cells).
  • - Researchers fabricated grid-lined micropatterned PCL-Collagen nanofibers (GLMPCnfs) to observe their effects on cell alignment and differentiation compared to unpatterned controls (NPPCnfs), finding that GLMPCnfs led to greater cellular alignment and osteogenic activity.
  • - Results showed a significant reduction in the area of GLMPCnfs due to electrofocusing during fabrication, and aligned cells displayed increased alkaline phosphatase activity and upregulation of osteogenic markers
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Despite of being in different microenvironment, breast cancer cells influence the bone cells and persuade cancer metastasis from breast to bone. Multiple co-culture approaches have been explored to study paracrine signaling between these cells and to study the progression of cancer. However, lack of native tissue microenvironment remains a major bottleneck in existing co-culture technologies.

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Scaffolds for bone tissue engineering require considerable mechanical strength to repair damaged bone defects. In this study, we designed and developed mechanically competent composite shape memory triphasic bone scaffolds using fused filament fabrication (FFF) three dimensional (3D) printing. Wollastonite particles (WP) were incorporated into the poly lactic acid (PLA)/polycaprolactone (PCL) matrix as a reinforcing agent (up to 40 wt%) to harness osteoconductive and load-bearing properties from the 3D printed scaffolds.

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The extensive research work in the exhilarating area of foldamers (artificial oligomers possessing well-defined conformation in solution) has shown them to be promising candidates in biomedical research and materials science. The post-modification approach is successful in peptides, proteins, and polymers to modulate their functions. To the best of our knowledge, site-selective post-modification of a foldamer affording molecules with different pendant functional groups within a molecular scaffold has not yet been reported.

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Article Synopsis
  • - Physiological inflammation is beneficial for bone regeneration in moderation, but excessive inflammation hinders bone repair; this study focuses on creating a nanofibrous scaffold to enhance bone healing by managing inflammation and promoting the differentiation of mesenchymal stromal cells (MSCs).
  • - The custom scaffold, made of polycaprolactone (PCL) and collagen, incorporates the drugs dexamethasone and simvastatin, and its effectiveness is confirmed through tests showing immunocompatibility and anti-inflammatory responses in human monocytes.
  • - After 17 days of culture, the scaffolds significantly boosted the osteogenic differentiation of MSCs, as evidenced by increased alkaline phosphatase activity and mineral deposition, indicating strong potential for application in
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