Results 141 to 150 of about 594,359 (210)

Quartz-enhanced photoacoustic NH₃ sensor exploiting a large-prong-spacing quartz tuning fork and an optical fiber amplifier for biomedical applications. [PDF]

Photoacoustics, 2022
Shang Z, Li S, Li B, Wu H, Sampaolo A, Patimisco P, Spagnolo V, Dong L.   +7 more
europepmc   +1 more source

Ultra‐Weak Photon Emission as a By‐Product of Mitochondrial Oxidative Metabolism: Mechanisms, Limits, and Implications

Nanophotonics, Volume 15, Issue 20, 27 October 2026.
Mitochondrial oxidative metabolism generates ROS. Downstream chemiexcitation triplet carbonyls, singlet oxygen; produces ultra‐weak photon emission (UPE). Energetic bounds restrict well‐coupled respiration to extremely weak, red/NIR‐biased emission. Stronger visible UPE indicates elevated oxidative flux, linking measured photon counts to redox state ...
Samuel Crowther, Alice Attenborough, Frank Vollmer   +2 more
wiley   +1 more source

Low temperature electrostatic force microscopy of a deep two-dimensional electron gas using a quartz tuning fork

, 2010
Using an ultralow temperature, high magnetic field scanning probe microscope, we have measured electric potentials of a deeply buried two-dimensional electron gas (2DEG).
Grütter, Peter, P. Grütter, G. Gervais, K. W. West, A. Lal, J. A. Hedberg, Y. Miyahara, M. Hilke, L. Pfeiffer   +8 more
core   +1 more source

Development and Comparative Analysis of Electrochemically Etched Tungsten Tips for Quartz Tuning Fork Sensor. [PDF]

Micromachines (Basel), 2021
Ali A, Ullah N, Riaz AA, Zahir MZ, Khan ZA, Shah SSA, Rehman Siddiqi MU, Hassan MT.   +7 more
europepmc   +1 more source

Quartz tuning fork-based demodulation of an acoustic signal induced by photo-thermo-elastic energy conversion. [PDF]

Photoacoustics, 2021
Lang Z, Qiao S, He Y, Ma Y.
europepmc   +1 more source

A Quartz Tuning Fork-Based Immunosensor for Detection of Kidney Injury Molecule-1: A New Working Electrode for Electrochemical Applications. [PDF]

Biotechnol Appl Biochem
Özkan ŞŞ, Sezgintürk MK.
europepmc   +1 more source

Study and Characterization of Silicon Nitride Optical Waveguide Coupling with a Quartz Tuning Fork for the Development of Integrated Sensing Platforms. [PDF]

Sensors (Basel)
Melchiorre L, Thottoli A, Vorobev AS, Menduni G, Sampaolo A, Magno G, O'Faolain L, Spagnolo V.   +7 more
europepmc   +1 more source

All-Fiber LITES Sensor Based on Hollow-Core Anti-Resonant Fiber and Self-Designed Low-Frequency Quartz Tuning Fork. [PDF]

Sensors (Basel)
Sun X, Chen W, He Y, Sun H, Qiao S, Ma Y.   +5 more
europepmc   +1 more source

Improved T-shaped quartz tuning fork with isosceles-trapezoidal grooves optimized for quartz-enhanced photoacoustic spectroscopy. [PDF]

Photoacoustics
Fang F, Wang R, Shao D, Wang Y, Tao Y, Lin S, Ma Y, Liang J.   +7 more
europepmc   +1 more source

LITES-Based Sensitive CO₂ Detection Using 2 μm Diode Laser and Self-Designed 9.5 kHz Quartz Tuning Fork. [PDF]

Sensors (Basel)
Mu J, Hou J, Qiu S, Qiao S, He Y, Ma Y.
europepmc   +1 more source