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Author: natalia farkas
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1. Cellulose Nanocrystals the Next Big Nano-thing?
Michael T Postek, Andras Vladar, John A. Dagata, Natalia Farkas, Bin Ming, Ronald Sabo, Theodore H Wegner
Biomass surrounds us from the smallest alga to the largest redwood tree. Even the largest trees owe their strength to a newly-appreciated class of nanomaterials known as cellulose nanocrystals (CNC). Cellulose, the world s most abundant natural, rene ...
2. Development of the Metrology and Imaging of Cellulose Nanocrystals
Michael T Postek, Andras Vladar, John A. Dagata, Natalia Farkas, Bin Ming, Ryan Wagner, Arvind Raman, Robert J Moon, Ronald Sabo, Theodore H Wegner, James Beecher
The development of metrology for nanoparticles is a significant challenge. Cellulose nanocrystals
(CNC) are one group of nanoparticles that have high potential economic value
but present substantial challenges to the development of the measurement ...
3. High-voltage Nanoimprint Lithography of Refractory Metal Film
John A. Dagata, Natalia Farkas, R Ramsier
Local oxidation of metal, semiconductor, and polymer surfaces has provided a common basis from which to explore fundamental principles of nanolithography and prototype functional nanostructures for many years now. This article summarizes an investiga ...
4. Nanoscale Oxidation of Zirconium Surfaces: Kinetics and Mechanisms
Natalia Farkas, Li Zhang, E A Evans, R Ramsier, John A. Dagata
We show that AFM-induced oxide features can be reproducibly formed on both Zr and ZrN surfaces, and that the growth rate decreases rapidly with increasing time. There is an increase in oxide-feature height with humidity for both systems, and an appro ...
5. Physical characterization methods for iron-oxide contrast agents encapsulated within a targeted liposome-based delivery system
John A. Dagata, Natalia Farkas, Cindi L Dennis, Robert D Shull, Vincent A Hackley, Charles W Yang, Kathleen F Pirollo, Esther H Chang
Intact liposome-based targeted nanoparticle delivery systems (NDS) are immobilized by nonselective binding and characterized by scanning probe microscopy (SPM) in a fluid imaging environment. The size, size distribution, functionality, and stability ...