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ISPDI 2013

Lin Li (The University of Manchester, UK)

Picosecond Laser Generation of Nanoparticles for Antibacterial Application

Lin Li1, Abubaker Hamad1,  Zhu Liu2, Shianli Zhong2Tao Wang3

1 Laser Processing Research Centre, School of Mechanical, Aerosapce and Civil Engineering, The University of Manchester, UK
2School of Materials, The University of Manchester, UK
3 School of Medicine, The University of Manchester, UK

Drug resistant by bacteria to antibiotics is one of the biggest threats to humanity. Over the past decade, many potential antibacterial agents—including noble metallic nanoparticles and nano metal-oxides have been found to be toxic against bacteria but not against human cells.  This opens a new way for their medical applications. This presentation reports recent work by the authors in developing and understanding of laser generated nanoparticles for antibacterial applications.  The characteristics of these laser generated nanoparticles including Ag,  TiO2 and Ag/TiO2 and their antibacterial functions are reported.  The new Ag/TiO2compound nanoparticles have been found to be effective in killing bacteria even in the dark.A comparison between nanosecond pulsed, picosecond pulsed and femtosecond pulsed laser generation of nanoparticles is made and how they affect the particle size and antibacterial functions are discussed.  The application of the nanoparticles as a coating for antibacterial functions is presented.

Brief Biography
Professor Lin Li, Fellow of Royal Academy of Engineering,is the Director of Laser Processing Research Centre at The University of Manchester, UK. He has over 550 publications in peer-reviewed journals and conference proceedings and 47 patents in laser processing. He serves on the editorial boards of 12 international journals and is President-Elect of Laser Institute of America, President of International Academy of Photonics and Laser Engineering. Professor Li received Sir Frank Whittle Medal from the Royal Academy of Engineering in 2013 for his outstanding achievements in engineering innovations in manufacturing and received Wolfson Research Merit Award from the Royal Society in 2014. He has been voted as Researcher of the Year at The University of Manchester in 2014.

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