Xiao-Hong Nancy Xu

TL;DR: The transport of single silver nanoparticles into an in vivo model system (zebrafish embryos) and investigated their effects on early embryonic development at single-nanoparticle resolution in real time found that single Ag nanoparticles are transported into and out of embryos through chorion pore canals and exhibit Brownian diffusion (not active transport).

TL;DR: Assessment of real-time change of membrane permeability and pore sizes of P. aeruginosa using the intrinsic color index (surface plasmon resonance spectra) of silver (Ag) nanoparticles as the nanometer size index probes shows that Ag nanoparticles with sizes ranging up to 80 nm are accumulated in living microbial cells, demonstrating that these Ag nanoparticle transport through the inner and outer membrane of the cells.

TL;DR: This study synthesized twelve colloids of Ag NPs and correlated the sizes and shapes of single NPs determined by high-resolution transmission electron microscopy with scattering localized surface plasmon resonance (LSPR) spectra ofsingle NPs characterized by dark-field optical microcopy and spectroscopy (DFOMS).

TL;DR: The motion of single, dye-labeled protein molecules was monitored at various pH and ionic strengths within the 180-nanometer-thick evanescent-field layer at a fused-silica surface, implying that surface charge can influence the charged protein at distances beyond that of the electrical double-layer thickness.

TL;DR: The results show that Au nanoparticles are much more biocompatible with (less toxic to) the embryos than the Ag nanoparticles that were reported previously, suggesting that they are better suited as biocombatible probes for imaging embryos in vivo.