Research Activities
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Research Projects

*Photodynamics of dopant in sol-gel matrix


*Conjugation of protein on the gold nanoparticles

 

 

Recent Publications

 

K. Yokoyama "Nanoscale Protein Conjugation” in Advances in Nanotechnology Vol. 1 , Eds. E. J. Chen and N. Peng (Nova Science Publishing), in press.

K. Yokoyama and D. R. Welchons, "Thermal Stability of Congo Red Dye-Amyloid b Peptide Complexes”, Amyloid, submitted (2009).

K. Yokoyama, H. Cho, S. P. Cullen, M. Kowalik, N. M. Briglio, H. J. Hoops, Z. Zhao and M. A. Carpenter " Microscopic Investigation of Reversible Nanoscale Surface Size Dependent Protein Conjugation”, International Journal of Molecular Science (Special Issue on Bioactive Nanoparticle), 10, 2348-66 (2009).

K. Yokoyama J. R. Swana, T. M. Gilbert, D. D. Chen, L. Chen and P. Kogan, " The Nanoscale Description of Acid Penetration to the Gold Colloids Encapsulated in Silica Sol-Gel Matrix”, Journal of Sol-Gel Science and Technology, 50, 48-57 (2009).
K. Yokoyama, N. M. Briglio, D. Sri Hartati, W. S. M. Tsang, J. E. MacCormac, and D. R. Welchons, "Nano-scale Size Dependence in the Conjugation of Amyloid Beta and Ovalbumin Proteins on the Surface of Gold Colloidal Particles”, Nano-Technolog, 19, 375101-375108 (2008).

• D. Sri Hartati, W. Tsang, N.M. Briglio, J.E. MacCormac and K. Yokoyama, “Size Dependence Of Conjugation of Amyloid Beta Protein On Gold Colloidal Nanoparticles’ Surfaces”, Technical Proceedings of the 2007 NSTI Nanotechnology Conference and Trade Show, Vol. 4, 169-172 (2007)

K. Yokoyama, B. E. Johnson and J. W. Bourne, "The Photodynamics of [Ru(bpy)3]2+ Ion Dopant in a Solvent Exposed Silica Sol-gel Thin Film”, Journal of Sol-Gel Science and Technology, 43, pp.259-268 (2007).

K. Yokoyama and D. R Welchons, "The Conjugation of Amyloid Beta Protein on the Gold Colloidal Nanoparticles’ Surface”, Nano-Technology, 18(10) 105101-105107 (2007).

 

Recent Selected Presentations

 

K. Yokoyama, “The Nanoscale Description of Solvent Diffusion to the Gold Colloids Encapsulated in Silica Sol-Gel” Poster Presentation, NSTI Nanotech 2008, June 4 (2008) Boston, MA.

K. Yokoyama, “Size Dependence Of Conjugation of Amyloid Beta Protein On Gold Colloidal Nanoparticles’ Surfaces” Poster Presentation, NSTI Nanotech 2007, May 20-24 (2007) Santa Clara, CA.

•Paul Kogan, Jeff Swana and K. Yokoyama, "Study of Acid Penetration Into Gold nanoparticles Embedded in Silica Sol Gel", Poster Presentation, ACS Nantional Meeting, March 25-March29 (2007), Chicago,IL.

• Winnie Tsang, Dewi Sri Hartati and K. Yokoyama, "Conjugation of the Amyloid Beta Protein on the Surface of Gold Colloidal Nanoparticles", Poster Presentation, ACS Nantional Meeting, March 25-March29 (2007), Chicago, IL.

•Tonya Gilbert and K. Yokoyama, "Investigation of Gold Colloid Nanoparticles Embedded in a Silica Based Sol-Gel", Poster Presentation 21st National Conference on Undergraduate Research, April 12-April 14 (2007), Dominican University of California, San Francisco, CA.

•Jessica MacCormac, Nicole Briglio, Dewi Sri Hartati and K. Yokoyama, "Conjugation of the Amyloid Beta Protein on the Surface of Gold Colloidal Nanoparticles", Poster Presentation, 21st National Conference on Undergraduate Research, April 12-April 14 (2007), Dominican University of California, San Francisco, CA.
K. Yokoyama "The pH Dependence of Conjugation of Amyloid Beta Proteins on the Gold Colloidal Nanoparticles’ Surfaces”, Oral, NERM 2006, October 5-7 (2006), Binghamton, NY.

K. Yokoyama "The Probing of Solvent Intrusion into a Sol-gel Thin Film”, Oral, NERM 2006, October 5-7 (2006), Binghamton, NY.

K. Yokoyama and D. R. Welchons, "The Conformational Change of Amyloid Beta Protein on the Gold Colloidal Nnanoparticles' Surfaces", 3rd IUPAC International Symposium on Macro- and Supramolecular Architectures and materials (MAM-06): Practical Nano-Chemistry and Novel Approaches, May 28-June 1, (2006) Tokyo, Japan.

K. Yokoyama, D. R. Welchons, and B.E. Johnson , "Marking a Conformational Change in Amyloid Beta Protein by Gold Colloidal Nanoparticles ", NSTI Nanotech Conference, May 7-11 (2006). Boston.

K. Yokoyama, B. E. Johnson, and D. R. Welchons , "The Conformational Change of Amyloid Beta Protein on Gold Colloidal Nanoparticles' Surfaces", Second International Nanotechnology Conference on Communication and Cooperation, NSF-NNI 2006 & INC2, May 10 (2006) Arlington, VA.

D. R. Welchons, B. E. Johnson, and K. Yokoyama, "Marking a Conformational Change in Amyloid Beta Protein by Gold Colloidal Nanoparticles" , bibl. , (2006). Council on Undergraduate Research 2006 Posters on the Hill, April 25 (2006) Washington D.C.

 

$upports

External Grants

•NSF-Nanoscale Exploratory Research #0508240 (2005-2006)

Dreyfus Foundation Special Program in Chemistry (2002-2005)

ACS-PRF Summer Research Fellowship #36998-G4-SF02 (2002)

•NSF-CCLI #0196409 (2001-2004)

 

Geneseo Internal Grants

•SUNY-Geneseo Presidential Summer Fellowship 2003

•SUNY-Geneseo Research Development Scholarship 2001

 

 

 

 

 

 

 

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