Frenz M, Mathezloic F, Stoffel M H, Zweig A D, Romano V, Weber H P
Institute of Applied Physics, University of Berne, Switzerland.
Lasers Surg Med. 1988;8(6):562-6. doi: 10.1002/lsm.1900080604.
The transport of biologically active material during laser cutting with CO2 and Er lasers is demonstrated. This transport mechanism removes particles from the surface of gelatin, agar, and liver samples into the depth of the laser-formed craters. The transport phenomenon is explained by a contraction and condensation of enclosed hot water vapor. We show by cultivating transported bacteria in agar that biological particles can survive the shock of the transport. Determination of the numbers of active cells evidences a more pronounced activity of the cultivated bacteria after impact with an Er laser than with a CO2 laser.
演示了在使用二氧化碳激光和铒激光进行激光切割过程中生物活性物质的传输。这种传输机制将明胶、琼脂和肝脏样本表面的颗粒移除到激光形成的弹坑深处。这种传输现象是由封闭的热水蒸气的收缩和凝结来解释的。我们通过在琼脂中培养传输的细菌表明，生物颗粒能够在传输的冲击中存活。活性细胞数量的测定表明，与二氧化碳激光相比，铒激光冲击后培养的细菌具有更显著的活性。
