Liquid-Phase Peak Force Infrared Microscopy for Chemical Nanoimaging and Spectroscopy.

ABSTRACT: Peak force infrared (PFIR) microscopy is an emerging atomic force microscopy that bypasses Abbe's diffraction limit in achieving chemical nanoimaging and spectroscopy. The PFIR microscopy mechanically detects the infrared photothermal responses in the dynamic tip-sample contact of peak force tapping mode and has been applied for a variety of samples, ranging from soft matters, photovoltaic heterojunctions, to polaritonic materials under the air conditions. In this article, we develop and demonstrate the PFIR microscopy in the liquid phase for soft matters and biological samples. With the capability of controlling fluid compositions on demand, the liquid-phase peak force infrared (LiPFIR) microscopy enables in situ tracking of the polymer surface reorganization in fluids and detectin

SUBMITTER: Wang H 

PROVIDER: S-EPMC7988711 | biostudies-literature | 2021 Feb

REPOSITORIES: biostudies-literature