Mechanically robust and bioadhesive collagen and photocrosslinkable hyaluronic acid semi-interpenetrating networks.
Mechanically robust and bioadhesive collagen and photocrosslinkable hyaluronic acid semi-interpenetrating networks.
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DOI:
10.1089/ten.tea.2008.0441
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发表时间:
2009-07
影响因子:
--
通讯作者:
Khademhosseini A
中科院分区:
文献类型:
--
作者:
Brigham MD;Bick A;Lo E;Bendali A;Burdick JA;Khademhosseini A
In this work, we present a class of hydrogels that leverage the favorable properties of the photocrosslinkable hyaluronic acid (HA) and semi-interpenetrating collagen components. The mechanical properties of the semi-interpenetrating network (semi-IPN) hydrogels far surpass those achievable with collagen gels or collagen gel based semi-IPNs. Furthermore, the inclusion of the semi-interpenetrating collagen chains provides a synergistic mechanical improvement in comparison to unmodified HA hydrogels. Collagen-HA semi-IPNs supported fibroblast adhesion and proliferation and were shown to be suitable for cell encapsulation at high levels of cell viability. To demonstrate the utility of the semi-IPNs as a microscale tissue engineering material, cell laden microstructures and microchannels were fabricated via soft lithographic techniques. Given their enhanced mechanical and biomimetic properties, we anticipate that these materials will be of value in tissue engineering and 3D cell culture applications.
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