Results 11 to 20 of about 29,341 (262)
Apparent attenuation by opto-acoustic defocus in phonon microscopy
Photoacoustics, 2020 Understanding the mechanical properties of biological cells is a challenging problem for the life sciences partly because there are limited methods for mapping elasticity with high resolution.
Fernando Pérez-Cota +5 more
doaj +1 more source
Heliyon, 2021 Cells incur structural and functional damage from external stimuli. Under scanning acoustic microscopy (SAM), speed of sound (SOS), attenuation, and thickness values are plotted to visualize cellular stiffness, viscosity, and size.
Katsutoshi Miura, Yasuko Fukushi
doaj +1 more source
Analysis of Using Acoustic Microscopy to Evaluate Defects in Spot Welding Joints
Archives of Metallurgy and Materials, 2016 The article presents the possibilities of using acoustic microscopy to evaluate defects in resistance spot welding joints. For this purpose, the welded joints were made from two grades of aluminium plates EN AW5754 H24 and EN AW6005 T606, which were then
Korzeniowski M., Białobrzeska B.
doaj +1 more source
Mode specific dynamics for the acoustic vibrations of a gold nanoplate
Photoacoustics, 2023 The vibrational modes of semiconductor and metal nanostructures occur in the MHz to GHz frequency range, depending on dimensions. These modes are at the heart of nano-optomechanical devices, and understanding how they dissipate energy is important for ...
Cameron Wright, Gregory V. Hartland
doaj +1 more source
Light sheet microscopy with acoustic sample confinement
Nature Communications, 2019 Here, the authors integrate an acoustic trap with a compact light sheet fluorescence microscope to provide contactless sample confinement of biological organisms.
Zhengyi Yang +9 more
doaj +1 more source
Detection, mapping, and quantification of single walled carbon nanotubes in histological specimens with photoacoustic microscopy. [PDF]
PLoS ONE, 2012 In the present study, the efficacy of multi-scale photoacoustic microscopy (PAM) was investigated to detect, map, and quantify trace amounts [nanograms (ng) to micrograms (µg)] of SWCNTs in a variety of histological tissue specimens consisting of cancer ...
Pramod K Avti +7 more
doaj +1 more source
High resolution ultrasound and photoacoustic imaging of single cells
Photoacoustics, 2016 High resolution ultrasound and photoacoustic images of stained neutrophils, lymphocytes and monocytes from a blood smear were acquired using a combined acoustic/photoacoustic microscope.
Eric M. Strohm +2 more
doaj +1 more source
Multispectral photoacoustic microscopy based on an optical–acoustic objective
Photoacoustics, 2015 We have developed reflection-mode multispectral photoacoustic microscopy (PAM) based on a novel optical–acoustic objective that integrates a customized ultrasonic transducer and a commercial reflective microscope objective into one solid piece.
Rui Cao +5 more
doaj +1 more source
Image denoising in acoustic microscopy using block-matching and 4D filter
Scientific Reports, 2023 Scanning acoustic microscopy (SAM) is a label-free imaging technique used in biomedical imaging, non-destructive testing, and material research to visualize surface and sub-surface structures.
Shubham Kumar Gupta +4 more
doaj +1 more source
IEEE Access, 2021 Microacoustic radio frequency filters are essential electronic components for all devices using wireless communication. For miniaturization and cost reduction it is necessary to further reduce the area for the electrical contacts on the chip. CPB (copper
Jakob Schober +3 more
doaj +1 more source