Electrostatic charging at the solid–liquid interface: Strategies for liquid flow sensing by Yan Araujo Santos da Campo, Kelly Schneider Moreira, Ezequiel Lorenzett, Thiago Augusto Lima Burgo

“…Finally, the output voltage signal from the induction electrode was processed through an input signal filter and a microcontroller, where four light-emitting diodes (LEDs) were incorporated to indicate the flow and type of liquid.…”
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High-performance triboelectric nanogenerators based on Ag-doped ZnO loaded electrospun PVDF nanofiber mats for energy harvesting and healthcare monitoring by Hema Malini Venkatesan, Anand Prabu Arun

“…The electrical measurement results revealed that pristine PVDF/TPU-based TENG device exhibited lower performance (V oc = 9.0 V and I sc = 0.6 µA) compared to the optimized PAZ3/TPU-based TENG (V oc = 51 V and I sc = 1.2 µA), and utilized for concurrent applications such as powering over 10 light-emitting diodes, energy harvesting and healthcare monitoring applications. …”
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New SEPIC Derived Semi-Bridgeless PFC Converter for Battery Charging Application by Manish Kumar Dwivedi, R. Jayapragash

“…Additionally, the incorporation blocking diodes in the proposed converter effectively eliminates circulating current through input inductor which in turn makes the converter more efficient. …”
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Design and Development of Polymer-Based Optical Fiber Sensor for GAIT Analysis by Mamidipaka Hema, Jami Venkata Suman, Boddepalli Kiran Kumar, Adisu Haile

“…There are 20 intensity deviation sensors on a fiber. Light-emitting diodes (LED) are triggered successively, using the multiplexing approach that is being employed. …”
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Low-Level Laser Therapy and Calcitonin in Bone Repair: Densitometric Analysis by Tatiana Pinto Ribeiro, Simone Bustamante Nascimento, Claúdia Alessandra Cardoso, Raduan Hage, Janete Dias Almeida, Emilia Angela Loschiavo Arisawa

“…Calcitonin has antiosteoclastic action and LLLT is a treatment that uses low-level lasers or light-emitting diodes to alter cellular function. Both are used to improve bone healing. …”
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Hybrid LLC and Full Bridge Paralleled Converter With Variable-Frequency Plus Phase-Shift Control for Wide Voltage Gain Range Application by Fangfang Chen, Wenguang Chen, Bo Hu

“…Consequently, all primary-side switches of LLC converter achieve zero-voltage switching-on (ZVS) and low-current switching-off (LCS), while secondary-side diodes achieve zero-current switching-off (ZCS), leading to a substantial reduction in switching losses. …”
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Free-space optical spiking neural network. by Reyhane Ahmadi, Amirreza Ahmadnejad, Somayyeh Koohi

“…Moreover, we utilize highly efficient, compact semiconductor laser diodes and develop novel cooling strategies to minimize power consumption and footprint.…”
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Investigation of Spectroscopic Parameters and Trap Parameters of Eu³⁺-Activated Y₂SiO₅ Phosphors for Display and Dosimetry Applications by Neeraj Verma, Marta Michalska-Domańska, Vikas Dubey, Tirath Ram, Jagjeet Kaur, Neha Dubey, Shireen Aman, Ovica Manners, Janita Saji

“…Based on the computed (1931 CIE) chromaticity coordinates for the photoluminescence emission spectra, it was determined that the produced phosphor may be used in light-emitting diodes. The TL glow curve was examined for various doping ion concentrations and durations of UV exposure levels, revealing a broad peak at 183 °C. …”
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Synthesis and optical properties of LaSrGaO4:RE3+ (RE = Sm, Eu, Ho) single crystals via optical float zone method by Hasan Yilmaz, Masahiko Isobe, Oliver Clemens, Markus Suta, Pascal Puphal

“…The advancement of synthesis of materials with luminescence properties of lanthanoid ions in various single crystalline host compounds with low phonon energies has facilitated the optimization of numerous materials to meet the specific optical properties required for diverse applications such as new energy resource exploration, light-emitting diodes (LEDs), quantum dot displays, laser technology, sensors, telecommunications, medical diagnostics and more. …”
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Nonlinear optical response of thermally stable perovskite for near-infrared optical modulator by Jiang Wang, Liang Xie, Jingjing Liu, Yuxuan Sun, Jinglong Xu, Jiacheng Li, Zhongying Zhang, Chengbing Qin, Liantuan Xiao, Guofeng Zhang, Yonggang Wang, Zhichun Yang, Guanghua Cheng

“…Metal halide perovskite has generated significant attention due to its high optical absorption coefficient, the tunability of bandgap, and its solution processing properties, all of which have led to a range of applications including solar cells, photodetectors, light-emitting diodes and lasers. However, the material's application as an optical modulator for high-energy ultrafast lasers is still limited by its slow nonlinear optical response, low damage threshold and the inferior stability. …”
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An MPPT method using phasor particle swarm optimization for PV‐based generation system under varying irradiance conditions by Injila Sajid, Adil Sarwar, Mohd Tariq, Shafiq Ahmad, Farhad Ilahi Bakhsh, Adamali Shah Noor Mohamed, Md. Rasidul Islam

“…The inclusion of bypass diodes in parallel to each PV module mitigates this problem to an extent but leads to the formation of several peaks in the P‐V characteristics. …”
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Two-Dimensional Transition Metal Dichalcogenide: Synthesis, Characterization, and Application in Candlelight OLED by Dipanshu Sharma, Sanna Gull, Anbalagan Ramakrishnan, Sushanta Lenka, Anil Kumar, Krishan Kumar, Pin-Kuan Lin, Ching-Wu Wang, Sinn-Wen Chen, Saulius Grigalevicius, Jwo-Huei Jou

“…Low-color-temperature candlelight organic light-emitting diodes (OLEDs) offer a healthier lighting alternative by minimizing blue light exposure, which is known to disrupt circadian rhythms, suppress melatonin, and potentially harm the retina with prolonged use. …”
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Sub-terahertz transmissive reconfigurable intelligent surface for integrated beam steering and self-OOK-modulation by Dongfang Shen, Feng Lan, Luyang Wang, Tianyang Song, Munan Yang, Tianyu Hu, Yueting Li, Xiaolei Nie, Jiayao Yang, Shixiong Liang, Hongxin Zeng, Hui-Fang Zhang, Pinaki Mazumder, Ziqiang Yang, Yaxin Zhang, Tie Jun Cui

“…Here, we propose a sub-terahertz TRIS based on the phase shift via Pancharatnam-Berry (PB) metasurface and self-on-off keying (OOK) modulation via Schottky diodes. The electrically reconfigurable unit cell consists of a column-wise phase resonator and a rectangular slot. …”
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Efficacy of phototherapy to treat facial ageing when using a red versus an amber LED: a protocol for a randomised controlled trial by Lidiane Rocha Mota, Christiane Pavani, Lara Jansiski Motta, Anna Carolina Ratto Tempestini Horliana, Ivone da Silva Duarte, Daniela de Fátima Teixeira da Silva

“…Nowadays, there are numerous treatments for ageing skin, and one of them is with the use of phototherapy, which uses light-emitting diodes (LEDs). The objective of this study will be to evaluate the percentages of reduction in the volume of periocular wrinkles when treated with red and amber LEDs.Methods and analysis All of the participants will receive photobiomodulation to treat their periocular wrinkles. …”
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Removal of Tetracycline Using Tungsten Disulfide/Graphene Oxide as Photocatalyst: Effect of Light Irradiation and Kinetic Studies by Zulhatiqah Zolekafeli, Syafarina Farisa Sateria, Ahmad Husaini Mohamed, Siti Hajar Alias, Kavirajaa Pandian Sambasevam, Siti Nor Atika Baharin

“…A distinctive GO peak was found at 2θ = 10.1˚, which corresponds to the plane (002). With light emitting diodes (95.67%), fluorescent lights (81.28%), and ultraviolet-visible light (88.09%), the nanocomposite in a photoreactor showed excellent photocatalytic efficiency. …”
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Adhesion-induced MoS2 layer transfer via in-situ TEM-nanoindentation: Effects of curvature and substrate mediated residual stress by Jhih H. Liang, Mehdi Rouhani, J. David Schall, Takaaki Sato, Christopher Muratore, Nicholas R. Glavin, Robert W. Carpick, Yeau-Ren Jeng

“…Molybdenum disulfide (MoS2) holds great potential in a wide range of applications, including electronics, photodetectors, light-emitting diodes (LEDs), and solar cells due to its unique two-dimensional (2D) structure. …”
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A Seventeen Multilevel High-Power Application Inverter with Low Total Harmonic Distortion by Ajmal Farooq, Shanshan Tu, Fiaz Ahmad, Muhammad Zeeshan Malik, Obaid U. Rehman, Ghulam Hafeez, Sadaqat ur Rehman

“…The proposed inverter consists of 6 unidirectional switches and 2 bidirectional switches, and there is no extra requirement for additional voltage balancing capacitors or clinching diodes. The individual switching states and SPWM operation for generating the gate pulses of the proposed MLI are discussed in detail. …”
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The effectiveness of Transcranial Photobiomodulation therapy (tPBM) on reducing anxiety, depression, and opioid craving in patients undergoing methadone maintenance treatment: a do... by Helya Helali, Nastaran Samani, Faraj Tabeie, Shiva Eiliaei, Ali Kheradmand

“…The intervention group received PBM in the form of Light- Emitting Diodes (LEDs) for four minutes of light exposure at 810 nm wavelength producing 250 mW/cm2 when applied to 4 mm skin depth (totaling 60 J/cm2) in both forehead locations. …”
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Antimicrobial photodynamic inactivation of Pseudomonas aeruginosa persister cells and biofilms by Mona Mahmoud, Peter Richter, Philipp Arnold, Michael Lebert, Andreas Burkovski

“…Here, we investigate the influence of the anionic photosensitiser chlorophyllin (CHL)11 Abbreviations: CHL: Chlorophyllin; BP: Butylparaben; SHX: Serine hydroxamate; TEM: Transmission electron microscope; AMR: Antimicrobial resistance; aPDI: Antimicrobial photodynamic inactivation; LED: Light-emitting diodes exposed to red light alone and in combination with an activator of the mechanosensitive channels butylparaben (BP) on P. aeruginosa growing cells, persister cells, and biofilms. …”
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Light People: Prof. Henry Snaith’s (FRS) perovskite optoelectronics journey by Ruidong Xia, Ying Hu

“…Over the past two decades, perovskite optoelectronics have made remarkable progress, with significant improvements in efficiency, stability, and commercial viability, which has transformed these materials from a scientific curiosity into a leading platform for a wide range of applications, particularly in PVs and light-emitting diodes (LEDs). Prof. Henry Snaith’s election as a Fellow of the Royal Society (FRS) credits to his groundbreaking discovery of the use of perovskites in efficient solar cells. …”
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