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Molecular excitation by the simultaneous absorption of two photons provides intrinsic three-dimensional resolution in laser scanning fluorescence microscopy. The excitation of fluorophores having single-photon absorption...

Materias / palabras clave: Electron microscope; Cryo-electron microscopy; Microscopy; Anisotropy; Materials science; Motion (physics); Optics; Electron; Biophysics; Physics; Nanotechnology; Nuclear magnetic resonance

Materias / palabras clave: microscopy, materials science, instrumentation, electron microscopy, biological science; Science: Natural history (General): Microscopy

Materias / palabras clave: optical microscopy, fluorescence microscopy, super-resolution microscopy, (low- and high voltage) electron microscopy, correlative microscopy, scanning probe microscopy; Science: Natural history (General): Microscopy

The outbreak of a novel coronavirus (2019-nCoV) represents a pandemic threat that has been declared a public health emergency of international concern. The CoV spike (S) glycoprotein is a key target for vaccines, therape...

We introduce a method for optically imaging intracellular proteins at nanometer spatial resolution. Numerous sparse subsets of photoactivatable fluorescent protein molecules were activated, localized (to approximately 2 ...

The scanning tunneling microscope is proposed as a method to measure forces as small as ${10}^{\ensuremath{-}18}$ N. As one application for this concept, we introduce a new type of microscope capable of investigating sur...