Results 91 to 100 of about 2,833,014 (274)

Investigasi Penggunaan Metode Laser Speckle Imaging (LSI) untuk Pengukuran Kadar Gula Darah

Jurnal Fisika, 2018
Telah dilakukan penelitian dalam menginvestigasi kadar gula darah menggunakan metode Laser speckle Imaging, yang merupakan pencitraan dari peristiwa interferensi cahaya yang mengenai permukaan yang kasar. Penelitian ini memberikan suatu solusi alternatif
Zulkarnain Zulkarnain, Minarni Shidiq
doaj   +1 more source

Objective speckle velocimetry for autonomous vehicle odometry [PDF]

, 2012
Speckle velocimetry is investigated as a means of determining odometry data with potential for application on autonomous robotic vehicles. The technique described here relies on the integration of translation measurements made by normalized cross ...
Charrett, Thomas O. H., Tatam, Ralph P., Waugh, L., Francis, Daniel   +3 more
core   +1 more source

Self‐Assembling Copolymers Encapsulating Single Endothelial Cells Induce Endogenous ECM Deposition and Vascular Regeneration

Advanced Materials, EarlyView.
This study presents the first demonstration of stable sub‐50‐micron single‐cell GPM vesicles fabricated through the intrinsic self‐assembly of an amphiphilic copolymer. Hierarchical assembly of cell containing GPM vesicles into microspheres enable tunable, sustained cell delivery with immune protection.
Viola B. Morris, Sangho Lee, Kalp Soni, Simon He, Matthew Huang, Dandan Chen, Dae Hoon Lee, Kyung Hee Kim, Seonggeon Cho, Laura Pencea, Divit Jain, Young‐Sup Yoon   +11 more
wiley   +1 more source

Dual-Wavelength Laser Speckle Contrast Imaging (dwLSCI) Improves Chronic Measurement of Superficial Blood Flow in Hands

Sensors, 2017
Laser speckle contrast imaging (LSCI) has been widely used to determine blood flow and perfusion in biological tissues. The physical model of traditional LSCI ignores the effects of scattering property distribution in relation to speckle correlation time
Lingke Zhang, Li Ding, Miao Li, Xiaoli Zhang, Diansan Su, Jie Jia, Peng Miao   +6 more
doaj   +1 more source

Ionic Gating of Liquid‐Crystal‐Like Pteridine Assemblies Enables Tunable Light Scattering

Advanced Materials, EarlyView.
Tunable optical properties emerge through developmentally regulated ionic gating, which transforms disordered, ultraviolet (UV)‐absorbing organelles into concentrically ordered, liquid‐crystal‐like light scatterers. By integrating analyses of pteridine composition, potassium‐dependent assembly, hierarchical ultrastructure, and optical behavior, the ...
Sourabh Bera, Zohar Eyal, Yael Noy, Yuval Barzilay, Siddharth Sahoo, Srikant Moharana, Avi Baram, Tali Lerer‐Goldshtein, Neta Varsano, Bar Bader, Lothar Houben, Uwe Heinig, Iddo Pinkas, Moshe Goldsmith, Tamar Unger, Shira Albeck, Andrea Sorrentino, Maxim Itkin, Sergey Malitsky, Ziv Porat, Ido Hadar, Venkata Jayasurya Yallapragada, Dvir Gur   +22 more
wiley   +1 more source

Laser Speckle Contrast Imaging of Hepatic Microcirculation

Biomedical Optics Express
Abstract The liver controls blood homeostasis and depends critically on adequate blood supply. While the global regulation of liver blood flow via the hepatic arterial buffer response is well established, the mechanisms governing hepatic sinusoidal hemodynamics remain elusive.
Oleg Zhukov, Dmitry D. Postnov, Kamilla H. Hejn, Kim Ravnskjær, Olga Sosnovtseva   +4 more
openaire   +2 more sources

Light-Sheet Laser Speckle Imaging

, 2022
Abstract Laser speckle imaging (LSI) as a label-free flow mapping technique has numerous potential clinical applications and plays an increasingly important role in translational medicine. Conventional LSI, however, is limited to qualitative flow change assessment and two-dimensional topographic imaging.
Kai Long, Keertana Ram, Shuhao Shen, E Du, Ziheng Ren, Zhiyuan Gong, Nanguang Chen   +6 more
openaire   +1 more source

Single‐Particle FRET Probes Heterogeneity in the Ligand Shell of Colloidal Perovskite Quantum Dots

Advanced Materials, EarlyView.
Single‐particle, single‐molecule Förster resonance energy transfer turns dye‐tagged ligands into nanorulers for the otherwise elusive organic shell of CsPbBr3 quantum dots. Distance variations within individual particles reveal pronounced local heterogeneity, while changes in the surrounding ligand chemistry shift the average dye–surface separation ...
Leon G. Feld, Oleksandr Kolomiiets, Noah A. Shahin, Sebastian Sabisch, Amrutha Rajan, Gabriele Rainò, Maksym V. Kovalenko   +6 more
wiley   +1 more source

Speckle Noise Reduction via Linewidth Broadening for Planetary Laser Reflectance Spectrometers

Remote Sensing
The low obliquity of the Moon leads to challenging solar illumination conditions at the poles, especially for passive reflectance measurements aimed at determining the presence and extent of surface volatiles.
Daniel R. Cremons, Gregory B. Clarke, Xiaoli Sun   +2 more
doaj   +1 more source

Micropillar‐Engineered Hybrid Adhesive Patch for Surface‐Conformable and Directional Adhesion

Advanced Materials Technologies, EarlyView.
This work presents a surface‐conformable hybrid adhesive integrating height‐optimized hexagonal micropillars with open‐rectangular cuts. The micropillars enhance rough‐surface contact and microscale crack arrest, while the cuts guide and reverse interfacial cracks for strong and directional adhesion. The multiscale architecture achieves robust pull‐off
Seongjin Park, Dong Kwan Kang, Haejin Bae, Ho‐Sup Jung, Hoon Eui Jeong   +4 more
wiley   +1 more source