Tai, Benjamin C. U. published the artcileSynthetic Poly(Vinylalcohol)-Based Membranes for Cartilage Surgery and Repair, Quality Control of 6346-09-4, the publication is Biotechnology Journal (2017), 12(12), n/a, database is CAplus and MEDLINE.
Cell-based therapies for cartilage repair are continually being developed to treat osteoarthritis. The cells are either introduced directly by intra-articular injection or via a cell-seeded matrix scaffold. Here, poly(vinylalc.)-based membranes are developed to be used for mesenchymal stem cell implantation in cartilage repair procedures, having controllable physicochem. properties such as porosity, mech. strength, and permeability, and a unique self-sealing property. The membranes possess a bilayer structure with a less porous layer providing mech. strength and selective permeability, exhibit an elastic modulus of between 0.3 and 0.9 MPa, and are permeable to mols. <40 kDa, which is in the range of cartilage permeability. Three different peptide ligands with the sequences Ac-GCGYGRGDSPG, Ac-GCG(OPG)4REGOFG(OPG)4, and Ac-GCG(OPG)7, resp., are conjugated to the membranes and subject to in vitro cell adhesion and differentiation assays. Col I/Col II gene expression ratios indicated that the collagen-mimetic peptide, Ac-GCG(OPG)7, best supported mesenchymal stem cell differentiation into the chondrogenic lineage. Although low retention of the membrane is observed in vivo in a rabbit knee model, results suggest that the membrane was able to facilitate mesenchymal stem cell implantation and differentiation to chondrocytes. These PVA-based membranes provide a feasible, synthetic, off-the-shelf material for the delivery of stem cells, and can be modified for other surgical applications.
Biotechnology Journal published new progress about 6346-09-4. 6346-09-4 belongs to alcohols-buliding-blocks, auxiliary class Amine,Aliphatic hydrocarbon chain,Ether, name is 4,4-Diethoxybutan-1-amine, and the molecular formula is C19H21N3O3S, Quality Control of 6346-09-4.
Referemce:
https://en.wikipedia.org/wiki/Alcohol,
Alcohols – Chemistry LibreTexts