Mishra, Y. K. and Mohapatra, S. and Avasthi, D. K. and Kabiraj, D. and Lalla, N. P. and Pivin, J. C. and Sharma, Himani and Kar, Rajarshi and Singh, Neeta (2007) Gold-silica nanocomposites for the detection of human ovarian cancer cells: a preliminary study. NANOTECHNOLOGY, 18 (34).
Full text is not hosted in this archive but may be available via the Official URL, or by requesting a copy from the corresponding author.
Official URL: http://dx.doi.org/10.1088/0957-4484/18/34/345606
We report the structural and optical properties of Au nanoparticles embedded in a silica matrix synthesized by atom beam co-sputtering. The presence of surface plasmon resonant absorption indicates the formation of Au nanoparticles. Transmission electron microscopy (TEM) studies show the presence of Au nanoparticles with an average size ranging from similar to 1.8 to 5.4 nm with narrow size distributions depending on the relative areas of Au and SiO2. We discuss the process of nucleation and growth of Au nanoparticles in the nanocomposite films formed by co-sputtering. The present method of nanoparticle synthesis is compared with other ion beam based techniques such as ion implantation and ion beam mixing. Preliminary experiments for the detection of human ovarian cancer cells using these Au nanoparticles are described.
|Subjects:||Analytical Science > Microscopy and probe methods|
Biomedical Science > Nanotechnology for human health
Biomedical Science > Nanomedicine
|Deposited By:||Farnush Anwar|
|Deposited On:||15 Jan 2009 15:47|
|Last Modified:||15 Jan 2009 15:47|
Repository Staff Only: item control page