Double-Network Hydrogels Including Enzymatically Crosslinked Poly-(2-alkyl-2-oxazoline)s for 3D Bioprinting of Cartilage-Engineering Constructs was written by Trachsel, Lucca;Johnbosco, Castro;Lang, Thamar;Benetti, Edmondo M.;Zenobi-Wong, Marcy. And the article was included in Biomacromolecules in 2019.Formula: C8H15NO2 This article mentions the following:
Double-network (DN) hydrogels are fabricated from poly(2-ethyl-2-oxazoline) (PEOXA)-peptide conjugates, which can be enzymically crosslinked in the presence of Sortase A (SA), and phys. networks of alginate (Alg), yielding matrixes with improved mech. properties with respect to the corresponding PEOXA and Alg single networks and excellent cell viability of encapsulated human auricular chondrocytes (hACs). The addition of a low content of cellulose nanofibrils (CNFs) within DN hydrogel formulations provides the rheol. properties needed for extrusion-based three-dimensional (3D) printing, generating constructs with a good shape fidelity. In the presence of hACs, PEOXA-Alg-CNF prehydrogel mixtures can be bioprinted, finally generating 3D-structured DN hydrogel supports showing a cell viability of more than 90%. Expanding the application of poly(2-alkyl-2-oxazoline)-based formulations in the design of tissue-engineering constructs, this study further demonstrates how SA-mediated enzymic crosslinking represents a suitable and fully orthogonal method to generate biocompatible hydrogels with fast kinetics. In the experiment, the researchers used many compounds, for example, Ethyl piperidine-4-carboxylate (cas: 1126-09-6Formula: C8H15NO2).
Ethyl piperidine-4-carboxylate (cas: 1126-09-6) belongs to piperidine derivatives. The piperidine moiety constitutes an important building block for the synthesis of a variety of bioactive natural products, alkaloids and other drugs. Piperidine derivatives bearing a masked aldehyde function in the 蔚-position are easily transformed into quinolizidine compounds through intramolecular reductive amination.Formula: C8H15NO2
Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem