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Browsing Duke Faculty Scholarship by Duke-affiliated Author

Browsing Duke Faculty Scholarship by Duke-affiliated Author "Wiesner, Mark"

Now showing items 1-5 of 5

Comparison of Methods for Fullerene Detection and Measurements of Reactive Oxygen Production in Cosmetic Products

Chae, So-Ryong; Xiao, Yao; Wiesner, Mark (MARY ANN LIEBERT INC, 2010)

Numerous commercial products incorporate novel engineered nanomaterials such as gold, silica, zinc oxide, and fullerenes in complex matrices such as polymer composites, creams, and textiles. Analytical methods for detecting ...
Concurrent Aggregation and Deposition of TiO2 Nanoparticles in a Sandy Porous Media

Wiesner, Mark (AMER CHEMICAL SOC, 2010)

The possibility of simultaneous particle aggregation and deposition in a porous medium was examined for the case of TiO2 nanoparticles (NPs). While potential for particle aggregation is typically assumed to be negligible ...
Exact Analytical Expressions for the Potential of Electrical Double Layer Interactions for a Sphere-Plate System

Lin, Shihong; Wiesner, Mark (AMER CHEMICAL SOC, 2010)

Exact, closed-form analytical expressions are presented for evaluating the potential energy of electrical double layer (EDL) interactions between a sphere and an infinite Bat plate for three different types of interactions: ...
Heterogeneities in Fullerene Nanoparticle Aggregates Affecting Reactivity, Bioactivity, and Transport

Chae, So-Ryong; Badireddy, Appala Raju; Budarz, Jeffrey Farner; Lin, Shihong; Xiao, Yao; Therezien, Mathieu; Wiesner, Mark (AMER CHEMICAL SOC, 2010)

Properties of nanomaterial suspensions are typically summarized by average values for the purposes of characterizing these materials and interpreting experimental results. We show in this work that the heterogeneity in ...
Theoretical Framework for Nanoparticle Reactivity as a Function of Aggregation State

Hotze, Ernest M.; Wiesner, Mark (AMER CHEMICAL SOC, 2010)

Theory is developed that relates the reactivity of nanoparticles to the structure of aggregates they may form in suspensions. This theory is applied to consider the case of reactive oxygen species (ROS) generation by ...