Results 31 to 40 of about 1,276 (131)

Quantitative Imaging of Human Hemoglobin Binding to Staphylococcus aureus With Single‐Molecule Resolution

Small, EarlyView.
Single‐molecule localization microscopy is exploited to quantify the number of hemoglobin copies bound to specific receptors on S. aureus wall. This quantification supports the design of a photoactive derivative of hemoglobin able to photo‐inactivate S.
Pietro Delcanale, Andrea Mussini, Òscar Gulías, Montserrat Agut, Melissa Berni, Stefano Pongolini, Stefano Bruno, Alessandro Casnati, Santi Nonell, Cristiano Viappiani, Stefania Abbruzzetti   +10 more
wiley   +1 more source

Integration of Refractive Microlenses on BP/MoS2 Photodiodes for Enhanced Infrared Photodetection

Small, EarlyView.
This study demonstrates the successful integration of black phosphorus/molybdenum disulfide infrared photodetectors with refractive microlenses to significantly enhance detection. The design achieves a 20‐fold photocurrent enhancement, enabling a room‐temperature detectivity of 1.83 × 109 cmHz1/2W−1, and demonstrates high‐resolution (1023 × 768) single‐
Varsha Ashwin Vedaraj, Daniel Fan, Jinyuan Chen, Seyed Saleh Mousavi Khaleghi, Luke Philpott, Yuchen Sun, Shifan Wang, Shi Tang, Robert Delaney, Alexander Corletto, Kenneth B. Crozier, James Bullock   +11 more
wiley   +1 more source

A Simple Analytic Modeling Method for SPAD Timing Jitter Prediction

IEEE Journal of the Electron Devices Society, 2019
Timing jitter as a key performance of single-photon avalanche diode (SPAD) detectors plays a significant role in determining the fast temporal response behavior of the SPAD device. Nevertheless, few analytic models are developed to directly calculate the
Feiyang Sun, Yue Xu, Zhong Wu, Jun Zhang
doaj   +1 more source

A High-Throughput Photon Processing Technique for Range Extension of SPAD-Based LiDAR Receivers

IEEE Open Journal of the Solid-State Circuits Society, 2022
There has recently been a keen interest in developing Light Detection and Ranging (LiDAR) systems using Single Photon Avalanche Diode (SPAD) sensors. This has led to a variety of implementations in pixel combining techniques and Time to Digital Converter
Sarrah M. Patanwala, Istvan Gyongy, Hanning Mai, Andreas Abmann, Neale A. W. Dutton, Bruce R. Rae, Robert K. Henderson   +6 more
doaj   +1 more source

Experimentally Determined Spatiotemporal Charge Carrier Dynamics for the Development of Particulate Photocatalysts

Advanced Energy Materials, Volume 16, Issue 38, 14 October 2026.
This review looks at the different experimental techniques that measure spatiotemporal charge carrier dynamics. This information is viewed in the context of particulate photocatalysts, outlining the insights these techniques provide and how they advance our understanding.
Sutripto Khasnabis, Robert Godin
wiley   +1 more source

Switchable Dual Emission of Luminescent Metal–Organic Framework@Nanoparticle Composites of EuBDC and ZrO‐Containing Hybrid Materials

European Journal of Inorganic Chemistry, Volume 29, Issue 26, 16 September 2026.
Luminescent metal–organic framework@nanoparticle composites show dual emission of both components EuBDC and zirconyl‐containing nanoparticles, being reversible, excitation energy‐dependent and solvatochromic switches. The chromaticity changes are fast, as no chemical transformation is involved and required as source of the dual emission.
Tobias Wehner, Joachim G. Heck, Claus Feldmann, Klaus Müller‐Buschbaum   +3 more
wiley   +1 more source

Quantitative Cherenkov‐excited fluorescence emission dosimetry for HDR Co‐60 brachytherapy: Calibration and planar validation against TPS

Journal of Applied Clinical Medical Physics, Volume 27, Issue 9, September 2026.
Abstract Background Accurate dose verification in High‐Dose‐Rate (HDR) brachytherapy presents a significant challenge due to steep dose gradients and the absence of beam collimation. Conventional quality assurance (QA) methods typically rely on point detectors or film‐based techniques, which lack the capability to provide real‐time, full‐field ...
Yagiz Yedekci, Mehmet Fazıl Enkavi, Ferah Yildiz   +2 more
wiley   +1 more source

Implementable methods for characterizing single photon avalanche diode parameters

Results in Optics
Single photon avalanche diode (SPAD) is used in quantum detectors. Quantum detectors are widely used in quantum communication. The quality of these detectors strongly affects the optimal performance of the system.
Mahdi Rahmanpour, Alireza Erfanian, Ahmad Afifi, Mahdi Khaje, Mohammad Hossein Fahimifar   +4 more
doaj   +1 more source

Real‐Time Monitoring of Paramagnetic Reactions Using Spin Relaxometry with Fluorescent Nanodiamonds

Advanced Quantum Technologies, Volume 9, Issue 9, September 2026.
Real‐time T1 spin relaxometry of fluorescent nanodiamond ensembles enables rapid, low‐cost monitoring of paramagnetic chemical reactions. An optimized cuvette‐based platform combining an avalanche photodiode and FPGA data acquisition tracks Cu(II) reduction to Cu(I) with 15‐second time resolution, achieving over 100‐fold speed improvement and tenfold ...
Trent Ralph, Erin S. Grant, Lianne Lay, Sepehr Ahmadi, David A. Simpson   +4 more
wiley   +1 more source

A time-correlated single photon counting SPAD array camera with a bespoke data-processing algorithm for lightsheet fluorescence lifetime imaging (FLIM) and FLIM videos

Scientific Reports
A wide-field microscope with epi-fluorescence and selective plane illumination was combined with a single-photon avalanche diode (SPAD) array camera to enable live-cell fluorescence lifetime imaging (FLIM) using time-correlated single-photon counting ...
Jakub Nedbal, Francesco Mattioli Della Rocca, Iveta T. Ivanova, Andrew Allan, Jeremy Graham, Richard Walker, Robert K. Henderson, Klaus Suhling   +7 more
doaj   +1 more source