TY - JOUR
T1 - Tracer diffusion in nanofluids measured by fluorescence correlation spectroscopy
AU - Hoffmann, Peter M.
AU - Subba-Rao, Venkatesh
AU - Mukhopadhyay, Ashis
N1 - Nanofluids exhibit some intriguing thermal properties, and have great potential to increase efficiency in various heat technological applications in micro- and nano-technology. Recent studies on mass transport in nanofluids yielded some interesting but controversial results. In this communication, we report the tracer diffusion of fluorescent dye in different nanofluids.
PY - 2011
Y1 - 2011
N2 - Nanofluids exhibit some intriguing thermal properties, and have great potential to increase efficiency in various heat technological applications in micro- and nano-technology. Recent studies on mass transport in nanofluids yielded some interesting but controversial results. In this communication, we report the tracer diffusion of fluorescent dye in different nanofluids. Measurements were performed using fluorescence correlation spectroscopy (FCS). Nanoparticle concentration in the nanofluid varied up to 1.7 vol%, and the diffusion coefficient of fluorescent dye was measured. Our results showed no significant changes in diffusion of dyes in the concentration range used, and the results indicate that more research is needed to completely understand the diffusion in nanofluids. This communication brings upon the powerful FCS technique for the first time to study the dynamics of nanofluids.
AB - Nanofluids exhibit some intriguing thermal properties, and have great potential to increase efficiency in various heat technological applications in micro- and nano-technology. Recent studies on mass transport in nanofluids yielded some interesting but controversial results. In this communication, we report the tracer diffusion of fluorescent dye in different nanofluids. Measurements were performed using fluorescence correlation spectroscopy (FCS). Nanoparticle concentration in the nanofluid varied up to 1.7 vol%, and the diffusion coefficient of fluorescent dye was measured. Our results showed no significant changes in diffusion of dyes in the concentration range used, and the results indicate that more research is needed to completely understand the diffusion in nanofluids. This communication brings upon the powerful FCS technique for the first time to study the dynamics of nanofluids.
UR - https://link.springer.com/article/10.1007/s11051-011-0607-5
U2 - 10.1007/s11051-011-0607-5
DO - 10.1007/s11051-011-0607-5
M3 - Article
SN - 1572-896X
JO - Journal of Nanoparticle Research
JF - Journal of Nanoparticle Research
ER -