Bond-selective imaging by optically sensing the mid-infrared photothermal effect

Y Bai, J Yin, JX Cheng - Science advances, 2021 - science.org
Mid-infrared (IR) spectroscopic imaging using inherent vibrational contrast has been broadly
used as a powerful analytical tool for sample identification and characterization. However …

Mid-infrared photothermal microscopy: principle, instrumentation, and applications

Q **a, J Yin, Z Guo, JX Cheng - The Journal of Physical Chemistry …, 2022 - ACS Publications
Midinfrared photothermal (MIP) microscopy, also called optical photothermal infrared (O-
PTIR) microscopy, is an emerging tool for bond-selective chemical imaging of living …

Using Fourier transform IR spectroscopy to analyze biological materials

MJ Baker, J Trevisan, P Bassan, R Bhargava… - Nature protocols, 2014 - nature.com
IR spectroscopy is an excellent method for biological analyses. It enables the
nonperturbative, label-free extraction of biochemical information and images toward …

Depth-resolved mid-infrared photothermal imaging of living cells and organisms with submicrometer spatial resolution

D Zhang, C Li, C Zhang, MN Slipchenko, G Eakins… - Science …, 2016 - science.org
Chemical contrast has long been sought for label-free visualization of biomolecules and
materials in complex living systems. Although infrared spectroscopic imaging has come a …

Infrared spectroscopic laser scanning confocal microscopy for whole-slide chemical imaging

K Yeh, I Sharma, K Falahkheirkhah, MP Confer… - Nature …, 2023 - nature.com
Chemical imaging, especially mid-infrared spectroscopic microscopy, enables label-free
biomedical analyses while achieving expansive molecular sensitivity. However, its slow …

High-resolution, high-contrast mid-infrared imaging of fresh biological samples with ultraviolet-localized photoacoustic microscopy

J Shi, TTW Wong, Y He, L Li, R Zhang, CS Yung… - Nature …, 2019 - nature.com
Mid-infrared (MIR) microscopy provides rich chemical and structural information about
biological samples, without staining. Conventionally, the long MIR wavelength severely …

Label-free biomedical optical imaging

NT Shaked, SA Boppart, LV Wang, J Popp - Nature photonics, 2023 - nature.com
Label-free optical imaging employs natural and non-destructive approaches to visualize
biomedical samples for both biological assays and clinical diagnosis. At present, this field …

Digital histopathology by infrared spectroscopic imaging

R Bhargava - Annual Review of Analytical Chemistry, 2023 - annualreviews.org
Infrared (IR) spectroscopic imaging records spatially resolved molecular vibrational spectra,
enabling a comprehensive measurement of the chemical makeup and heterogeneity of …

Quantum cascade lasers (QCLs) in biomedical spectroscopy

A Schwaighofer, M Brandstetter, B Lendl - Chemical Society Reviews, 2017 - pubs.rsc.org
Quantum cascade lasers (QCL) are the first room temperature semiconductor laser source
for the mid-IR spectral region, triggering substantial development for the advancement of …

Attenuated total reflection Fourier-transform infrared (ATR-FTIR) imaging of tissues and live cells

KLA Chan, SG Kazarian - Chemical Society Reviews, 2016 - pubs.rsc.org
FTIR spectroscopic imaging is a label-free, non-destructive and chemically specific
technique that can be utilised to study a wide range of biomedical applications such as …