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Self-Assembly of Glass-Ceramic / CdSe / Protein Aggregations in the Optical Trap

Published online by Cambridge University Press:  11 February 2011

Andrey Zavalin ,
W. Eugene Collins  and
Steven Morgan
Andrey Zavalin
Affiliation:
Physics Department, Fisk University, Nashville, TN37208, U.S.A.
W. Eugene Collins
Affiliation:
Physics Department, Fisk University, Nashville, TN37208, U.S.A.
Steven Morgan
Affiliation:
Physics Department, Fisk University, Nashville, TN37208, U.S.A.
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Abstract

Aggregations, created in 2-component suspension inside the optical trap zone were studied. Particles of porous glass-ceramic of CaO-TiO2-P2O5 composition and 1–50 um size were mixed with BSA molecules in water or with CdSe-TOPO 20 nm particles in toluene. Dynamic aggregations up to 300 um size were created inside the optical trap. These aggregations in comparison with one-component aggregations have a 30% higher growth rate. This effect could be explained by the stronger bonding of the protein molecules and CdSe-TOPO particles inside the glass-ceramic particle aggregations. Micro-Raman spectra, taken from dynamic and stable permanent aggregations show several new peaks, possibly associated with creation of chemical bonds.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 735: Symposium C – Bioinspired Nanoscale Hybrid Systems , 2002 , C11.44
Copyright
Copyright © Materials Research Society 2003

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References

REFERENCES

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