The exposure system [Schonborn et al., 2000] located inside an incubator consisted of two 128.5 x 65 x 424 mm³ brass single-mode waveguide resonators (equipped with DC ventilators) that were assigned to exposure or sham condition by the computer-controlled signal unit ensuring blind conditions for the experiment.
Each resonator was equipped with a plastic holder holding six 35-mm Petri dishes arranged in two stacks in the H-field maxima of the standing wave (E-polarization).
The temperature of the monolayer cells was uniformly distributed without localized "hot spots". The increase in temperature due to the RF EMF was well below 0.1°C per unit SAR. The temperature difference between sham and exposed cells was less than 0.1°C. The absolute uncertainty of the SAR was 20%, and the variation due to the nonuniformity was 29%. The temperature remained at 36.64 ± 0.12°C during the period of measurement, ensuring no thermal effects.
Mess- und Berechnungsdetails
The system was characterized using an FDTD simulation program, and the results were verified by Schuderer et al.  using a DASY3 near-field scanner equipped with dosimetric field and temperature probes.
Schuderer J et al.
High Peak SAR Exposure Unit With Tight Exposure and Environmental Control for In Vitro Experiments at 1800 MHz
Schönborn F et al.
Design, optimization, realization, and analysis of an in vitro system for the exposure of embryonic stem cells at 1.71 GHz
Lee JS et al.
Radiofrequency radiation does not induce stress response in human T-lymphocytes and rat primary astrocytes
Scarfi MR et al.
Exposure to radiofrequency radiation (900 MHz, GSM signal) does not affect micronucleus frequency and cell proliferation in human peripheral blood lymphocytes: an interlaboratory study
Qutob SS et al.
Microarray gene expression profiling of a human glioblastoma cell line exposed in vitro to a 1.9 GHz pulse-modulated radiofrequency field
Chauhan V et al.
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Lantow M et al.
Free radical release and HSP70 expression in two human immune-relevant cell lines after exposure to 1800 MHz radiofrequency radiation
Nikolova T et al.
Electromagnetic fields affect transcript levels of apoptosis-related genes in embryonic stem cell-derived neural progenitor cells
Diem E et al.
Non-thermal DNA breakage by mobile-phone radiation (1800 MHz) in human fibroblasts and in transformed GFSH-R17 rat granulosa cells in vitro
Biological stress responses to radio frequency electromagnetic radiation: are mobile phones really so (heat) shocking?
Lim HB et al.
Effect of 900 MHz electromagnetic fields on nonthermal induction of heat-shock proteins in human leukocytes
Czyz J et al.
High frequency electromagnetic fields (GSM signals) affect gene expression levels in tumor suppressor p53-deficient embryonic stem cells
Tian F et al.
Exposure to 2.45 GHz electromagnetic fields induces hsp70 at a high SAR of more than 20 W/kg but not at 5W/kg in human glioma MO54 cells
Leszczynski D et al.
Non-thermal activation of the hsp27/p38MAPK stress pathway by mobile phone radiation in human endothelial cells: Molecular mechanism for cancer- and blood-brain barrier-related effects
Kwee S et al.
Changes in cellular proteins due to environmental non-ionizing radiation. I. Heat-shock proteins
Kerbacher JJ et al.
Influence of radiofrequency radiation on chromosome aberrations in CHO cells and its interaction with DNA-damaging agents
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