Results 1 to 10 of about 1,160,757 (195)

Advances in Lensless Fluorescence Microscopy Design

Photonics
Lensless fluorescence microscopy (LLFM) has emerged as a promising approach for biological imaging, offering a simplified, high-throughput, portable, and cost-effective substitute for conventional microscopy techniques by removing lenses in favor of ...
Somaiyeh Khoubafarin, Edmond Kwesi Dadson, Aniruddha Ray   +2 more
doaj   +5 more sources

Resolution and Contrast Enhancement for Lensless Digital Holographic Microscopy and Its Application in Biomedicine

Photonics, 2022
An important imaging technique in biomedicine, the conventional optical microscopy relies on relatively complicated and bulky lens and alignment mechanics.
Duofang Chen, Lin Wang, Xixin Luo, Hui Xie, Xueli Chen   +4 more
doaj   +4 more sources

Multi-Illumination Single-Holographic-Exposure Lensless Fresnel (MISHELF) Microscopy: Principles and Biomedical Applications

Sensors, 2023
Lensless holographic microscopy (LHM) comes out as a promising label-free technique since it supplies high-quality imaging and adaptive magnification in a lens-free, compact and cost-effective way.
José Ángel Picazo-Bueno, Martín Sanz, Luis Granero, Javier García, Vicente Micó   +4 more
doaj   +4 more sources

Lensless light guide-coupled LED illumination for low-cost microscopy [PDF]

HardwareX
Solid-state LED illumination systems for microscopy are generally expensive, often containing multiple LED drivers, excitation filters, and mirrors.
Fox Avery, Thomas Geer, Dirk Albrecht
doaj   +4 more sources

Lensless magneto-optical imaging [PDF]

Scientific Reports
Magneto-optical methods, which utilize the interaction of polarized light with the magnetization of the sample in reflection through the magneto-optical Kerr effect or in transmission through the accordant Faraday effect, present prominent and widespread
V. Neu, G. Pedrini, I. Soldatov, S. Reichelt, R. Schäfer   +4 more
doaj   +2 more sources

Chip-Sized Lensless Holographic Microscope for Real-Time On-Chip Biological Sensing [PDF]

Sensors
Microscopy is a fundamental tool in biological research. However, conventional microscopes require manual operation and depend on user and equipment availability, limiting their suitability for continuous observation.
Sofía Moncada-Madrazo, Sergio Moreno, Oriol Caravaca, Joan Canals, Natalia Castro, Manel López, Javier Ramón-Azcón, Anna Vilà, Ángel Diéguez   +8 more
doaj   +2 more sources

Lensless Quantitative Phase Imaging with Bayer-Filtered Color Sensors Under Sequential RGB-LED Illumination [PDF]

Journal of Imaging
Lensless on-chip microscopy enables high-throughput, wide-FOV imaging; however, the Bayer color filter array (CFA) in standard color sensors spatially multiplexes spectral channels, introducing sub-sampling and spectral crosstalk that degrade phase ...
Jiajia Wu, Yining Li, Yuheng Luo, Leiting Pan, Pengming Song, Qiang Xu   +5 more
doaj   +2 more sources

Structured illumination lensless digital holographic microscopy (SI-LDHM)

Frontiers in Physics
In this work, we propose a structured-illumination lensless digital holographic microscopy (SI-LDHM). SI-LDHM illuminates a sample with 24 structured illuminations (8 orientations × 3 phase shifts) and records the defocused interferogram formed by two ...
Juanjuan Zheng, Juanjuan Zheng, Juanjuan Zheng, Xuhong Guo, Xuhong Guo, Xuhong Guo, Ying Ma, Ying Ma, Ying Ma, Kai Wen, Kai Wen, Kai Wen, Sha An, Sha An, Sha An, Xiaofang Wang, Xiaofang Wang, Xiaofang Wang, Peng Gao, Peng Gao, Peng Gao, Jiaming Qian, Chao Zuo, Peng Gao   +23 more
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HoloBio: A holographic microscopy tool for quantitative biological analysis. [PDF]

PLoS Computational Biology
Holographic imaging in microscopy enables label-free quantitative information of biological specimens and has found applications across a wide range of biomedical studies, from cell morphology to particle dynamics; yet its widespread adoption is often ...
Waira Mona, Maria J Gil-Herrera, Emanuel Mazo, Daniel Córdoba, Sofia Obando-Vasquez, Maria J Lopera, Rene Restrepo, Carlos Trujillo, Ana Doblas, Raul Castaneda   +9 more
doaj   +2 more sources

Quantitative phase imaging verification in large field-of-view lensless holographic microscopy via two-photon 3D printing [PDF]

Scientific Reports
Large field-of-view (FOV) microscopic imaging (over 100 mm2) with high lateral resolution (1–2 μm) plays a pivotal role in biomedicine and biophotonics, especially within the label-free regime.
Emilia Wdowiak, Mikołaj Rogalski, Piotr Arcab, Piotr Zdańkowski, Michał Józwik, Maciej Trusiak   +5 more
doaj   +2 more sources