热导率
赫拉
材料科学
活力测定
电导率
热阻
热的
表征(材料科学)
细胞
生物物理学
化学
纳米技术
热力学
生物
物理
复合材料
生物化学
物理化学
作者
Byoung Kyoo Park,Namwoo Yi,Jaesung Park,Dongsik Kim
摘要
This paper presents measurements of effective thermal conductivity of single biological cells (HeLa, NIH-3T3 J2, and hepatocyte). Such cellular-level measurements have not been performed previously, due to the small size (∼10 pl) of cells. The measurement uses the three-omega method with a nanoscale thermal sensor and a micro-well structure that confines the cell. The results provide a fundamental property to investigate the thermodynamics of cells. We also measured thermal conductivity of dead cells; results were significantly different from those of live cells. The difference means that thermal conductivity can be used for probing cell viability.
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