Fibroblasts cell number density based human skin characterization at THz for in-body nanonetworks

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• 作者：Nishtha Chopra^a ; ^{n.chopra@qmul.ac.uk}Author Vitae ; Ke Yang^aAuthor Vitae ; Jamie Upton^a ; Qammer Hussain Abbasi^a ; ^bAuthor Vitae ; Khalid Qaraqe^bAuthor Vitae ; Mike Philpott^aAuthor Vitae ; Akram Alomainy^aAuthor Vitae
• 关键词：Nano-communication ; In-body nanonetworks ; Human skin ; Collagen ; Terahertz time domain spectroscopy ; Channel modeling
• 刊名：Nano Communication Networks
• 出版年：2016
• 出版时间：December 2016
• 年：2016
• 卷：10
• 期：Complete
• 页码：60-67
• 全文大小：1777 K
• 卷排序：10

文摘

This paper presents the investigation of the electromagnetic properties of human skin tissues using Terahertz Time Domain Spectroscopy (THz-TDS). The material parameters i.e., refractive index and absorption coefficient are extracted for artificially synthesized skin cultured using fibroblast cells and collagen type I reagent. The increase in cell count number by 200% causes a distinctive decrease in refractive index and absorption coefficient values. In addition to material parameters, in-body channel parameters i.e., total pathloss and molecular noise temperature of the skin are also calculated. The results show the dependency of channel parameters on molecular features and hydration level of the skin. Such findings will pave the way for more rigorous THz channel analysis and network modeling to be applied for body-centric nano-communication specifically in the bioengineering domain.