Nandakumar Kanavillil, Obika Hideki, Utsumi Akihiro, Ooie Toshihiko, Yano Tetsuo
Great Lakes Institute for Environmental Research, University of Windsor, Ontario, Canada.
Appl Environ Microbiol. 2004 Nov;70(11):6905-8. doi: 10.1128/AEM.70.11.6905-6908.2004.
We studied the efficiency of pulsed low-power laser irradiation of 532 nm from an Nd:YAG (neodymium-doped yttrium-aluminum-garnet) laser to remove marine biofilm developed on titanium and glass coupons. Natural biofilms with thicknesses of 79.4 +/- 27.8 microm (titanium) and 107.4 +/- 28.5 microm (glass) were completely disrupted by 30 s of laser irradiation (fluence, 0.1 J/cm2). Laser irradiation significantly reduced the number of diatoms and bacteria in the biofilm (paired t test; P < 0.05). The removal was better on titanium than on glass coupons.
我们研究了掺钕钇铝石榴石(Nd:YAG)激光产生的532纳米脉冲低功率激光照射去除钛片和玻璃片上形成的海洋生物膜的效率。厚度为79.4±27.8微米(钛片)和107.4±28.5微米(玻璃片)的天然生物膜在30秒激光照射(能量密度,0.1 J/cm²)后被完全破坏。激光照射显著减少了生物膜中硅藻和细菌的数量(配对t检验;P<0.05)。在钛片上的去除效果比在玻璃片上更好。