Abstract
Recent progress has been made in the development of terahertz (THz) waves for practical applications. Few studies that have assessed the biological effects of THz waves have been reported, and the data currently available regarding the safety of THz waves is inadequate. In this study, the effect of THz wave exposure on two cultured cells was assessed using a widely tunable THz source with a 0.3–0.6 THz frequency range, which can be used and increased in one GHz increments. The THz waves applied to the cultured cells were weak enough such that any thermal effects could be disregarded. The influence of THz wave exposure on both the proliferative and metabolic activities of these cells was investigated, as well as the extent of the thermal stress placed on the cells. In this work, no measurable effect on the proliferative or metabolic activities of either cell type was observed following the exposure to THz waves. No differences in the quantity of cDNA related to heat shock protein 70 was detected in either the sham or exposure group. As such, no differences in cellular activity between cells exposed to THz waves and those not exposed were observed.
Highlights
The number of devices that use electromagnetic waves has increased in recent years, with rapid progress being made in the development of applications for waves such as in high-speed communication and security scanning technologies in the millimeter and terahertz (THz) frequency ranges [1], including wireless data transmission at 24 and 40 Gbit/s at 300 GHz using a
The number of studies concerning the biological effect of THz wave exposure has the number of studies concerning the biological effect of THz wave exposure has risen risen in recent years, the number of completed studies remains small
In our study the same cell lines were used, we investigated the non-thermal effects of 0.3–0.6 THz weak continuous wave (CW)
Summary
The number of devices that use electromagnetic waves has increased in recent years, with rapid progress being made in the development of applications for waves such as in high-speed communication and security scanning technologies in the millimeter and terahertz (THz) frequency ranges [1], including wireless data transmission at 24 and 40 Gbit/s at 300 GHz using aUni-Travelling-Carrier Photodiode (UTC-PD) [2,3]. The number of devices that use electromagnetic waves has increased in recent years, with rapid progress being made in the development of applications for waves such as in high-speed communication and security scanning technologies in the millimeter and terahertz (THz) frequency ranges [1], including wireless data transmission at 24 and 40 Gbit/s at 300 GHz using a. As THz technology advances, studies of the biological effects of exposure to THz waves are required. Identified Health Risks (SCENIHR) of the European Commission [6], there have been few studies to date that investigate the biological effects of the THz frequency range (0.1–1.0 THz). In recent years, increasing research attention has been focused on the frequency range near 0.1 THz
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