Results 71 to 80 of about 72,954 (249)

Advanced Contactless Bioassembly Approaches: Leveraging Sound, Optical, and Magnetic Fields

Advanced NanoBiomed Research, EarlyView.
This review explores innovative contactless bioassembly techniques driven by sound, light, and magnetic fields, which enable the precise organization of cells, biomaterials, and bioactive substances into complex 3D structures. These technologies, crucial for in vitro modeling and regenerative medicine, are examined in detail, highlighting their ...
Micaela Natta, Greta Cocchi, Riccardo Tognato, Alessandro Cianciosi, Tiziano Serra   +4 more
wiley   +1 more source

Imaging Gold Nanoparticles in Living Cells Environments using Heterodyne Digital Holographic Microscopy [PDF]

, 2009
This paper describes an imaging microscopic technique based on heterodyne digital holography where subwavelength-sized gold colloids can be imaged in cell environment. Surface cellular receptors of 3T3 mouse fibroblasts are labeled with 40 nm gold nanoparticles, and the biological specimen is imaged in a total internal reflection configuration with ...
arxiv   +1 more source

Roadmap to Nanomedical Applications: Nanotoxicology and In Vitro Guidelines for Lanthanide‐Doped Luminescence Nanothermometers

Advanced NanoBiomed Research, EarlyView.
Lanthanide‐based luminescence nanothermometry holds multifaceted potential for nanomedical applications, yet despite significant research advances, clinical translation of the engineered nanomaterials is still controversial and widely disputed. This is related to crucial nanotoxicological aspects that must be addressed at the preclinical level ...
Simona Premcheska, Andre G. Skirtach, Anna M. Kaczmarek   +2 more
wiley   +1 more source

Automatic Identification of Malaria-Infected RBC With Digital Holographic Microscopy Using Correlation Algorithms

IEEE Photonics Journal, 2012
Diagnosis of malaria is important for its medication and treatment. An automatic compact diagnostic tool will be advantageous especially for healthcare personnel working in developing countries, which lack trained professionals and high-quality ...
A. Anand, V. K. Chhaniwal, N. R. Patel, B. Javidi   +3 more
doaj   +1 more source

3D tracking the Brownian motion of colloidal particles using digital holographic microscopy and joint reconstruction [PDF]

Applied Optics Vol. 54, Issue 16, pp. 4996-5002 (2015), 2015
In-line digital holography is a valuable tool for sizing, locating and tracking micro- or nano-objects in a volume. When a parametric imaging model is available, Inverse Problems approaches provide a straightforward estimate of the object parameters by fitting data with the model, thereby allowing accurate reconstruction.
arxiv   +1 more source

Deconvolution for digital in-line holographic microscopy

aot, 2013
Abstract To improve the resolution in point source digital in-line holography, we present two deconvolutions, one for the illumination system (coherent or partially coherent light source such as a laser or diode and pinhole) and one for the finite numerical aperture of the hologram.
Brenden Scott Nickerson, Hans Jürgen Kreuzer   +1 more
openaire   +2 more sources

A simple approach to biophysical profiling of blood cells in extranodal NK/T cell lymphoma patients using deep learning‐integrated image cytometry

BMEMat, EarlyView.
We developed a deep learning‐integrated image cytometry technique to profile biophysical attributes of blood cells from ENKTL patients. We demonstrate specific changes in cell size, eccentricity, and refractive index during treatment in a label‐free manner.
Seongcheol Park, Sang Eun Yoon, Youngho Song, Changyu Tian, Changi Baek, Hyunji Cho, Won Seog Kim, Seok Jin Kim, Soo‐Yeon Cho   +8 more
wiley   +1 more source

Fast‐switchable polarization‐dependent bifocal lenses for AR displays

Journal of the Society for Information Display, EarlyView.
Polarization‐dependent bifocal Pancharatnam‐Berry phase lenses, fabricated via photoalignment, integrate bifocal functionality for AR displays. An electrically suppressed helix ferroelectric liquid crystal polarization rotator enables rapid switching (35 μs) between dual depths or field‐of‐views (FOVs) in longitudinal and transverse configurations ...
Ming Cheng, Vigneshwaran Swaminathan, Yuxiao Zhang, Chris Mathew, Valerii Vashchenko, Yan Jun Liu, Abhishek K. Srivastava   +6 more
wiley   +1 more source

Biomechanical Analysis Of Breast Cancer Cells: A Comparative Study Of Invasive And Non-Invasive Cell Lines Using Digital Holographic Microscopy [PDF]

arXiv, 2023
This study investigates the biomechanical properties of breast cancer cells, focusing on the invasive MDA-MB-231 and non-invasive MCF-7 cell lines, using phase-shifting digital holographic microscopy and an acousto-holographic system for non-invasive strain measurement.
arxiv  

Bendable Fiber Lens for Minimally Invasive Endoscopy

Laser &Photonics Reviews, EarlyView.
Translating ex vivo imaging to minimally invasive in vivo applications is of outstanding scientific and socioeconomic relevance. 3D imaging based on tiny lensless fiber endoscopes requires complex setups and computational schemes, so far. Bridging this gap, imaging through a unique optical fiber that mimics the functionality of a lens but is minimally ...
Ronja Stephan, Elias Scharf, Kinga Zolnacz, Waclaw Urbanczyk, Katharina Hausmann, Matthias Ließmann, Johannes Gürtler, Tom Glosemeyer, Jürgen Czarske, Michael Steinke, Robert Kuschmierz   +10 more
wiley   +1 more source