Anodized titania nanotubes have shown tremendous potential in tuning the properties of oxide based catalysis and photocatalysis. Their application is mostly restricted to thin films which can be grown by a variety of thin film deposition method. Titanium films were grown using DC magnetron sputtering at RWTH Aachen University in Germany. The films grown using different deposition conditions showed remarkably different stress levels characterized by Multibeam optical stress sensor (MOS). The thin films were then anodized using similar anodization conditions and the effect of different stress levels in tuning the shape and property of anodized titania nanotubes was observed. Preliminary experiments suggest that both the diameter and the thickness of the titania nanotubes can be altered by different deposition conditions. The current voltage transients and Scanning Electron Microscopy (SEM) were used to characterize the anodized titania nanotubes.

Ajay S Karakoti received the Masters degree in Chemistry from the University of Delhi, India in 2001. He received his Masters in Technology from Indian Institute of Technology (IIT) Bombay, India in 2003 following which he gained 1 year of research experience in a Powder Metallurgy industry. He then moved to University of Central Florida to complete his PhD in materials science and has been working with Dr. Sudipta Seal in Surface Science and Engineering Laboratory since August 2005. He is awarded the presidential research fellowship for completing the PhD from UCF.
S. Seal (Ph.D.) is a Professor at AMPAC, Mechanical, Materials, Aerospace Eng, Nanoscience and Technology Center at University of Central Florida. His current research is focussed on materials processing, surface chemistry, nanoenergetics, sensors, and nano-biotechnology including novel nanomedicine. He has a BTech in Metallurgical Eng, MS in Materials Eng and PhD in Materials Sci and Eng with Biochemistry and Surface chemistry as Minor. E is the recipient of ONR Young Investigator Award, JSPS fellowship, ASM IIM Lecture Award, and Alexander Von Humboldt fellowship. He has won various Research and Teaching Incentive award at UCF. He has written more than 200 journal papers, 3 books, including 1 text book on Structural Nanomaterials. He has also published an edited book on Nanoscience and Technology Education (first of its kind).
W. Self (Ph.D.) is an Assistant Professor in Molecular and Microbiology at University of Central Florida. His current research is in nano-bio medicince, selenium and arsenic interaction with bio-organisms.

NSF CBET-0541516

Researchers should cite this work as follows:

Ajay S Karakoti, Sudipta Seal and William Self, "Biologically compatible engineered nanoparticles to prevent UV radiation induced damage: NSF CBET: 0541516", Trip report presented at the NSF IREE 2007 Grantees Conference, October 30 - November 1, 2007, Purdue University, West Lafayette, Indiana

• (2009), "Biologically compatible engineered nanoparticles to prevent UV radiation induced damage: NSF CBET: 0541516," http://globalhub.org/resources/973.

1. Germany 18
2. iree 2007 109
3. trip report 221