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Multimodal Second-Harmonic-Generation, Two-Photon Excitation Fluorescence, and Brillouin Microscopy for Visualising Dermal Mechanical Properties in Ex Vivo Human Skin.
Exp Dermatol
March 2025
Institute of Post-LED Photonics, Tokushima University, Tokushima, Tokushima, Japan.
Impact of paraben on uterine collagen: An integrated and targeted Correlative approach using second harmonic generation microscopy, nanoindentation, and atomic force microscopy.
J Mech Behav Biomed Mater
May 2025
Mechanical Science and Engineering, Grainger College of Engineering, University of Illinois at Urbana-Champaign, Champaign, IL, 61820, USA; Biomedical and Translational Sciences, Carle Illinois College of Medicine, University of Illinois at Urbana-Champaign, Champaign, IL, 61820, USA; Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA; CZ Biohub Chicago, LLC, Chicago, IL, 60642, USA; Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA. Electronic address:
This study investigates the structural and mechanical changes in uterine collagen following exposure to propylparaben (PP) using a combined methodology of Second Harmonic Generation (SHG) microscopy, Nanoindentation (NI), and Atomic Force Microscopy (AFM). SHG analysis identified significant disorganization in collagen fibril orientation in the circumferential layer and heterogeneous distribution of regions with elevated forward to backward ratios (F/B) across all uterine layers due to PP exposure. High F/B can indicate multiple potential fibril-level changes like thickened fibrils, higher crosslinking, fibril disorganization - changes not fully decipherable by SHG alone.
View Article and Find Full Text PDFMotion-tolerant 3D volumetric multimodality microscopy imaging of human skin with subcellular resolution and extended field-of-view.
Commun Biol
February 2025
Imaging Unit, Integrative Oncology Department, BC Cancer Research Institute, Vancouver, BC, Canada.
The skin, the body's largest organ, has a heterogeneous structure with various cell types and tissue layers. In vivo noninvasive 3D volumetric imaging with multi-contrast, high resolution, a large field-of-view (FOV), and no-motion artifacts is crucial for studying skin biology and diagnosing/evaluating diseases. Traditionally high-resolution in vivo skin microscopy methods capture images in the en-face (xy) plane parallel to the skin surface but are affected by involuntary motion, particularly during large-area volumetric data acquisition using xy-z mosaicking.
View Article and Find Full Text PDFA novel workflow for multi-modal imaging of musculoskeletal tissues.
J Anat
January 2025
Department of Anatomy and Regenerative Medicine, Tissue Engineering Research Group (TERG) Royal College of Surgeons Ireland (RCSI) University of Medicine and Health Sciences, Dublin, Ireland.
According to the World Health Organization (WHO) musculoskeletal conditions are a leading contributor to disability worldwide. This fact is often somewhat overlooked, since musculoskeletal conditions are less likely to be associated with mortality. Nonetheless, treatments, therapies and management of these conditions are extremely costly to national healthcare systems.
View Article and Find Full Text PDFProximity ferroelectricity in wurtzite heterostructures.
Nature
January 2025
Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, USA.
Proximity ferroelectricity is an interface-associated phenomenon in electric-field-driven polarization reversal in a non-ferroelectric polar material induced by one or more adjacent ferroelectric materials. Here we report proximity ferroelectricity in wurtzite ferroelectric heterostructures. In the present case, the non-ferroelectric layers are AlN and ZnO, whereas the ferroelectric layers are AlBN, AlScN and ZnMgO.
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