CASPI: collaborative photon processing for active single-photon imaging

J Lee, A Ingle, JV Chacko, KW Eliceiri… - Nature …, 2023 - nature.com
Image sensors capable of capturing individual photons have made tremendous progress in
recent years. However, this technology faces a major limitation. Because they capture scene …

Single-cell imaging of α and β cell metabolic response to glucose in living human Langerhans islets

F Azzarello, L Pesce, V De Lorenzi, G Ferri… - Communications …, 2022 - nature.com
Here we use a combination of two-photon Fluorescence Lifetime Imaging Microscopy (FLIM)
of NAD (P) H free/bound ratio in living HIs with post-fixation, immunofluorescence-based …

FLIMJ: An open-source ImageJ toolkit for fluorescence lifetime image data analysis

D Gao, PR Barber, JV Chacko, MA Kader Sagar… - PloS one, 2020 - journals.plos.org
In the field of fluorescence microscopy, there is continued demand for dynamic technologies
that can exploit the complete information from every pixel of an image. One imaging …

Machine learning methods for fluorescence lifetime imaging (FLIM) based label-free detection of microglia

MAK Sagar, KP Cheng, JN Ouellette… - Frontiers in …, 2020 - frontiersin.org
Automated computational analysis techniques utilizing machine learning have been
demonstrated to be able to extract more data from different imaging modalities compared to …

An End-to-End Platform for Digital Pathology Using Hyperspectral Autofluorescence Microscopy and Deep Learning-Based Virtual Histology

C McNeil, PF Wong, N Sridhar, Y Wang, C Santori… - Modern Pathology, 2024 - Elsevier
Conventional histopathology involves expensive and labor-intensive processes that often
consume tissue samples, rendering them unavailable for other analyses. We present a …

Harnessing the power of optical microscopy for visualization and analysis of histopathological images

N Wang, C Zhang, X Wei, T Yan, W Zhou… - Biomedical Optics …, 2023 - opg.optica.org
Histopathology is the foundation and gold standard for identifying diseases, and precise
quantification of histopathological images can provide the pathologist with objective clues to …

NAD (P) H binding configurations revealed by time-resolved fluorescence and two-photon absorption

TS Blacker, MR Duchen, AJ Bain - Biophysical Journal, 2023 - cell.com
NADH and NADPH play key roles in the regulation of metabolism. Their endogenous
fluorescence is sensitive to enzyme binding, allowing changes in cellular metabolic state to …

Formalin fixation and paraffin embedding interfere with the preservation of optical metabolic assessments based on endogenous NAD (P) H and FAD two-photon …

A Sánchez-Hernández, CM Polleys… - Biomedical Optics …, 2023 - opg.optica.org
Endogenous NAD (P) H and FAD two-photon excited fluorescence (TPEF) images provide
functional metabolic information with high spatial resolution for a wide range of living …

Insights into metabolic activity and structure of the retina through multiphoton fluorescence lifetime imaging microscopy in mice

N Kesavamoorthy, JA Junge, SE Fraser, H Ameri - Cells, 2022 - mdpi.com
Fluorescence lifetime imaging microscopy (FLIM) evaluates the metabolic state of tissue
based on reduced nicotinamide adenine dinucleotide (NAD (P) H) and flavin adenine …

Microglia activation visualization via fluorescence lifetime imaging microscopy of intrinsically fluorescent metabolic cofactors

MAK Sagar, JN Ouellette, KP Cheng… - …, 2020 - spiedigitallibrary.org
Significance: A major obstacle to studying resident microglia has been their similarity to
infiltrating immune cell types and the lack of unique protein markers for identifying the …