Specific attachment of molecularly defined gold nanoparticles enables precise localization, critical for structural studies in vivo, of proteins of unknown structure within the cellular milieu by cryo-electron tomography.

A simple, yet elegant method for robust self-assembly of diverse membrane proteins into soluble peptide nanoparticles for their structural and functional analysis in detergent-free solutions.

A new technique for biodistribution and targeted uptake studies of nanoparticle imaging agents is demonstrated and used to achieve levels of detail that are inaccessible through existing methods.

A new method allows silver- and gold-labeled tissues to be imaged with confocal microscopy, avoiding the problem of fluorescence photobleaching.

A near-infrared light-stimulable optogenetic platform enables remote and wireless manipulation of calcium signaling and immune responses both in vitro and in vivo to achieve tailored function.

The accumulation of carbon black nanoparticles in smokers' lungs causes sterile inflammation, double-strand DNA breaks and emphysema.

Cuticulosomes are organelles found in the hair cells of birds that are composed of ferritin nanoparticles, form rapidly after hatching by the fusion of vesicular structures, and may play an indirect role in magnetic sensation.

Journals should publish referee reports and respond to well-founded concerns about papers after publication.