An investigation on the aggregation phenomena of Titanium dioxide nanoparticles in natural waters: role of ionic strength, organic matter and natural colloidal particles

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The aggregation behavior of TiO2 nanoparticles under conditions normally encountered in natural waters was investigated. Aggregation kinetics and size distribution was determined by DLS using a Nanosizer ZS, Malvern, UK. SEM images were also collected. [...]

Synthesis, Encapsulation and Functionization of Composite Organic-Inorganic Nanoparticles with Distinctive Surface Enhanced Raman Signatures

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Composite organic-inorganic nanoparticle (COIN) is a new type of optical label for multiplex biomolecule detection. It has strong Raman signal intensity and potentials for a large number of unique Raman signatures. We have developed methods [...]