Methods for post-fabrication functionalization of poly(ester ureas)

    公开(公告)号:US09988492B2

    公开(公告)日:2018-06-05

    申请号:US15026069

    申请日:2014-09-30

    摘要: Amino acid-based poly(ester urea)s (PEU) are emerging as a class of polymers that have shown promise in regenerative medicine applications. Embodiments of the invention relate to the synthesis of PEUs carrying pendent “clickable” groups on modified tyrosine amino acids. The pendent species include alkyne, azide, alkene, tyrosine-phenol, and ketone groups. PEUs with Mw exceeding 100k Da were obtained via interfacial polycondensation methods and the concentration of pendent groups was varied by copolymerization. The incorporation of derivatizable functionalities is demonstrated using 1H NMR and UV-Vis spectroscopy methods. Electrospinning was used to fabricate PEU nanofibers with a diameters ranging from 350 nm to 500 nm. The nanofiber matricies possess mechanical strengths suitable for tissue engineering (Young's modulus: 300±45 MPa; tensile stress: 8.5±1.2 MPa). A series of bioactive peptides and fluorescent molecules were conjugated to the surface of the nanofibers following electrospinning using bio-orthogonal reactions in aqueous media.

    Modified Amino Acids
    40.
    发明申请
    Modified Amino Acids 有权
    改性氨基酸

    公开(公告)号:US20140066598A1

    公开(公告)日:2014-03-06

    申请号:US14015893

    申请日:2013-08-30

    摘要: Provided herein are modified amino acids comprising an azido group, polypeptides, antibodies and conjugates comprising the modified amino acids, and methods of producing the polypeptides, antibodies and conjugates comprising the modified amino acids. The polypeptides, antibodies and conjugates are useful in methods of treatment and prevention, methods of detection and methods of diagnosis.

    摘要翻译: 本文提供了包含叠氮基,多肽,抗体和包含修饰的氨基酸的缀合物的修饰的氨基酸,以及制备包含修饰的氨基酸的多肽,抗体和缀合物的方法。 多肽,抗体和缀合物可用于治疗和预防的方法,检测方法和诊断方法。