Transport of biologically active material in laser cutting

✍ Scribed by Martin Frenz; Fabien Mathezloic; Michael H. S. Stoffel; Adrian D. Zweig; Valerio Romano; Heinz P. Weber

• Publisher: John Wiley and Sons
• Year: 1988
• Tongue: English
• Weight: 653 KB
• Volume: 8
• Category: Article
• ISSN: 0196-8092
• DOI: 10.1002/lsm.1900080604

✦ Synopsis

The transport of biologically active material during laser cutting with COz 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 COZ laser.