Commonality of elastic relaxation times in biofilms
Commonality of elastic relaxation times in biofilms
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DOI：
10.1103/physrevlett.93.098102
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发表时间：
2004-08-27
影响因子：
8.6
通讯作者：
Stoodley, P
中科院分区：
文献类型：
--
作者：
Shaw, T;Winston, M;Stoodley, P
生物膜是微生物和细胞外聚合物的粘性聚集体，是地球上最常见的生命形式之一。它们生存的一个组成部分是承受外部机械应力的能力。测量表明，生物膜弹性松弛时间在生物膜的宽样品上大致相同（约18分钟），尽管其他材料性质显著变化。该时间尺度的可能的存活意义在于，它是生物膜可以对瞬时机械应力产生表型响应的最短时期。
Biofilms, sticky conglomerations of microorganisms and extracellular polymers, are among the Earth's most common life forms. One component for their survival is an ability to withstand external mechanical stress. Measurements indicate that biofilm elastic relaxation times are approximately the same (about 18 min) over a wide sample of biofilms though other material properties vary significantly. A possible survival significance of this time scale is that it is the shortest period over which a biofilm can mount a phenotypic response to transient mechanical stress.