Injectable bioadhesive hydrogels with innate antibacterial properties.
Injectable bioadhesive hydrogels with innate antibacterial properties.
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DOI:
10.1038/ncomms5095
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发表时间:
2014-06-24
影响因子:
16.6
通讯作者:
Schneider, Joel P.
中科院分区:
文献类型:
--
作者:
Giano, Michael C.;Ibrahim, Zuhaib;Medina, Scott H.;Sarhane, Karim A.;Christensen, Joani M.;Yamada, Yuji;Brandacher, Gerald;Schneider, Joel P.
Surgical site infections cause significant postoperative morbidity and increased healthcare costs. Bioadhesives used to fill surgical voids and support wound healing are typically devoid of antibacterial activity. Here, we report novel syringe-injectable bioadhesive hydrogels with inherent antibacterial properties prepared from mixing polydextran aldehyde (PDA) and branched polyethylenimine (PEI). These adhesives kill both Gram-negative and Gram–positive bacteria, while sparing human erythrocytes. An optimal composition of 2.5 wt % oxidized dextran and 6.9 wt % PEI sets within seconds forming a mechanically rigid (~1700 Pa) gel offering a maximum adhesive stress of ~ 2.8 kPa. A murine infection model showed that the adhesive is capable of killing S. pyogenes introduced subcutaneously at the bioadhesive’s surface, with minimal inflammatory response. The adhesive was also effective in a cecal ligation and puncture model, preventing sepsis and significantly improving survival. These bioadhesives represent novel, inherently antibacterial materials for wound filling applications.
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DOI:
10.1099/00221287-143-10-3193
发表时间:
1997-10-01
期刊:
MICROBIOLOGY-UK
影响因子:
--
作者:
Helander, IM;Alakomi, HL;Koski, P
通讯作者:
Koski, P
影响因子:
4.9
作者:
Aziz, Manal A.;Cabral, Jaydee D.;Hanton, Lyall R.
通讯作者:
Hanton, Lyall R.
DOI:
10.1007/978-1-60761-058-8_23
发表时间:
2010-01-01
期刊:
MOUSE MODELS FOR DRUG DISCOVERY: METHODS AND PROTOCOLS
影响因子:
--
作者:
Medina, Eva
通讯作者:
Medina, Eva
影响因子:
64.8
作者:
Lee, Haeshin;Lee, Bruce P.;Messersmith, Phillip B.
通讯作者:
Messersmith, Phillip B.
影响因子:
3.9
作者:
Ignatova, M;Voccia, S;Jérôme, C
通讯作者:
Jérôme, C