To study the influence of 864 MHz and 935 MHz radiofrequency fields on the cell growth, colony forming ability, and cell viability of V79 cells.
Cell growth curves were determined 24, 48, 72, 96, and 120 hours after exposure.
Cf. publication 13986.
| Exposure | Parameters |
|---|---|
|
Exposure 1:
864 MHz
Modulation type:
CW
Exposure duration:
continuous for 1, 2, and 3 h
|
|
|
Exposure 2:
935 MHz
Modulation type:
CW
Exposure duration:
continuous for 1, 2, and 3 h
|
|
| Frequency | 864 MHz |
|---|---|
| Type | |
| Charakteristic |
|
| Exposure duration | continuous for 1, 2, and 3 h |
| Modulation type | CW |
|---|
| Exposure source |
|
|---|---|
| Setup | Cells were plated on 24-well plates (10,000 in 1 ml) for determining cell growth or on 10-cm Petri dishes (200 in 5 ml) for colony-forming ability. |
| Sham exposure | A sham exposure was conducted. |
| Measurand | Value | Type | Method | Mass | Remarks |
|---|---|---|---|---|---|
| power density | 0.14 W/m² | - | - | - | ± 0.024 W/m² |
| SAR | 0.08 W/kg | mean | calculated | - | - |
| Frequency | 935 MHz |
|---|---|
| Type | |
| Charakteristic |
|
| Exposure duration | continuous for 1, 2, and 3 h |
| Modulation type | CW |
|---|
| Exposure source | |
|---|---|
| Sham exposure | A sham exposure was conducted. |
| Measurand | Value | Type | Method | Mass | Remarks |
|---|---|---|---|---|---|
| power density | 0.17 W/m² | - | - | - | ± 0.002 W/m² |
| SAR | 0.12 W/kg | mean | calculated | - | - |
Cell growth impact was time-dependent for both fields: The growth of the 864 MHz exposed cells was significant decreased after 2 h and 3 h exposure 72 h after irradiation. A similar effect was observed 72 h after exposure for cells exposed to 935 MHz microwaves for 3 h.
Colony forming ability and cell viability in cells exposed to 864 MHz or 935 MHz microwaves did not significantly differ from control cells.
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