Injectable bioadhesive hydrogels with innate antibacterial properties.

Injectable bioadhesive hydrogels with innate antibacterial properties.
复制标题

DOI:
10.1038/ncomms5095
复制
发表时间:
2014-06-24
影响因子:
16.6
通讯作者:
Schneider, Joel P.
Schneider, Joel P.
中科院分区:
综合性期刊1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.

文献摘要

参考文献

被引文献

相似文献

手术部位感染会导致严重的术后发病率和增加的医疗费用。用于填补手术空白和支持伤口愈合的生物粘合剂通常缺乏抗菌活性。在这里,我们报道了由聚葡聚糖醛(PDA)和支化聚乙烯亚胺(PEI)混合而成的具有固有抗菌性能的新型注射器可注射生物黏附水凝胶。这些粘合剂既能杀死革兰氏阴性细菌,也能杀死革兰氏阳性细菌,同时还能保护人类红细胞。2.5wt%氧化葡聚糖和6.9wt%PEI的最佳组合在几秒钟内形成机械刚性(~1700Pa.)凝胶,最大粘结应力为~2.8kPa.小鼠感染模型表明,该粘合剂能够杀死生物粘合剂表面皮下感染的化脓性链球菌,炎症反应最小。这种粘合剂在盲肠结扎和穿孔模型中也是有效的,防止了脓毒症并显著提高了存活率。这些生物粘合剂代表了用于伤口填充应用的新型、固有的抗菌材料。
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.
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
DOI: 10.1128/aac.05463-11
发表时间: 2012-01-01
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
DOI: 10.1038/nature05968
发表时间: 2007-07-19
期刊: NATURE
影响因子: 64.8
作者:
Lee, Haeshin;Lee, Bruce P.;Messersmith, Phillip B.
通讯作者: Messersmith, Phillip B.
DOI: 10.1021/la048347t
发表时间: 2004-11-23
期刊: LANGMUIR
影响因子: 3.9
作者:
Ignatova, M;Voccia, S;Jérôme, C
通讯作者: Jérôme, C