Results 251 to 260 of about 1,566,640 (302)

Principle and applications of peak force infrared microscopy

Chemical Society Reviews, 2022
Peak force infrared (PFIR) microscopy is an atomic force microscopy-based infrared microscopy with multimodal characterization capabilities. PFIR microscopy allows ∼10 nm spatial resolution chemical imaging in both the air and liquid phases.
Le Wang, Haomin Wang, Xiaoji G Xu
exaly   +3 more sources

Dual-Color Peak Force Infrared Microscopy

Analytical Chemistry, 2021
Peak force infrared (PFIR) microscopy achieves nanoscale infrared imaging at sub-10 nm spatial resolution through photothermal mechanical detection of atomic force microscopy (AFM). However, it suffers from a major limitation that only one infrared frequency can be scanned for an AFM frame at a time.
Qing Xie   +3 more
openaire   +2 more sources

Lock-in amplifier based peak force infrared microscopy

The Analyst, 2023
Peak Force Infrared (PFIR) microscopy enables label-free chemical imaging with a spatial resolution below Abbe's diffraction limit through the integration of atomic force microscopy and infrared radiation.
Andrea Dorsa   +3 more
openaire   +2 more sources

Total Internal Reflection Peak Force Infrared Microscopy

Analytical Chemistry, 2020
Total internal reflection (TIR) infrared spectroscopy is a convenient measurement tool for collecting spectra for chemical identification. However, TIR infrared microscopy lacks high spatial resolution due to the optical diffraction limit and difficulty to preserve a high-quality wave front for focus. In this article, we present the peak force infrared
Haomin Wang   +4 more
openaire   +2 more sources

Peak force tapping atomic force microscopy for advancing cell and molecular biology

Nanoscale, 2021
Recent advances in peak force tapping (PFT)-based atomic force microscopy (AFM) imaging for applications in cell and molecular biology are summarized. Future perspectives for future progression and biomedical applications are provided.
Mi Li, Ning Xi, Lianqing Liu
openaire   +2 more sources

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