K
Kenneth R. Brown
Researcher at Pennsylvania State University
Publications - 10
Citations - 2190
Kenneth R. Brown is an academic researcher from Pennsylvania State University. The author has contributed to research in topics: Nanoparticle & Particle. The author has an hindex of 8, co-authored 10 publications receiving 2127 citations.
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Journal ArticleDOI
Seeding of Colloidal Au Nanoparticle Solutions. 2. Improved Control of Particle Size and Shape
TL;DR: In this article, the surface of preformed 12-nm-diameter Au nanoparticles is reduced by boiling sodium citrate, producing particles highly uniform in size and shape, and a similar procedure, utilizing the reductant NH2OH at room temperature, produces two populations of particles.
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Two-dimensional arrays of colloidal gold particles : A flexible approach to macroscopic metal surfaces
Katherine C. Grabar,Keith J. Allison,Bonnie E. Baker,Robin M. Bright,Kenneth R. Brown,R. Griffith Freeman,Audrey P. Fox,Christine D. Keating,and Michael D. Musick,Michael J. Natan +9 more
TL;DR: In this article, a flexible and general approach to formation of macroscopic colloidal Au surfaces that have well-defined nanostructure is presented. But the assembly method described in this paper is compared with previous methods for controlling the na...
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Morphology-dependent electrochemistry of cytochrome c at au colloid-modified sno2 electrodes
TL;DR: In this paper, reversible electrochemistry of horse heart cytochrome c (Cc) was obtained at SnO2 electrodes modified with 12-nm-diameter colloidal Au particles.
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Nanoscale characterization of gold colloid monolayers: a comparison of four techniques.
Katherine C. Grabar,Kenneth R. Brown,Christine D. Keating,S. J. Stranick,Sau Lan Tang,Michael J. Natan +5 more
TL;DR: For colloidal Au arrays, TEM gives the most reliable size and spacing information but exhibits the greatest constraints with regard to sample preparation; in contrast, AFM is widely applicable but yields data that are the least straightforward to interpret.
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Hydroxylamine Seeding of Colloidal Au Nanoparticles. 3. Controlled Formation of Conductive Au Films
TL;DR: An approach to enlarge preformed colloidal Au nanoparticles in solution based on the Au colloidal surface-catalyzed reduction of Au3+ by NH2OH (seeding) has been adapted to 12-nm-diameter colloidal AU nanoparticles immobilized in monolayers and multilayers.