Instantaneous physico-chemical analysis of suspension-based nanomaterials.

ABSTRACT: High-throughput manufacturing of nanomaterial-based products demands robust online characterization and quality control tools capable of continuously probing the in-suspension state. But existing analytical techniques are challenging to deploy in production settings because they are primarily geared toward small-batch ex-situ operation in research laboratory environments. Here we introduce an approach that overcomes these limitations by exploiting surface complexation interactions that emerge when a micron-scale chemical discontinuity is established between suspended nanoparticles and a molecular tracer. The resulting fluorescence signature is easily detectable and embeds surprisingly rich information about composition, quantity, size, and morphology of nanoparticles in suspension independ

SUBMITTER: Meng F 

PROVIDER: S-EPMC4413878 | biostudies-literature | 2015 Apr

REPOSITORIES: biostudies-literature