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Polymer-dispersed liquid-crystal voltage sensor
Applied Optics, 2006We present a novel electric-field and voltage sensor based on the electro-optical properties of polymer-dispersed liquid-crystals (PDLCs). In principle, the transmittance of PDLCs is a nonlinear function of the applied electrical field. To measure an AC field we superposed to it a known DC field.
Elizabeth, Scherschener +5 more
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NMDA Receptors as Voltage Sensors
2017The membrane potential is an essential parameter of a living cell. However, measurements of the membrane potential using conventional techniques are associated with a number of artifacts. Cell-attached recordings of the currents through NMDA receptor channels enable noninvasive measurements of the neuronal membrane potential.
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The voltage-sensor structure in a voltage-gated channel
Trends in Biochemical Sciences, 2005A recent electron paramagnetic resonance study of KvAP, a prokaryotic voltage-gated channel, in its lipid native environment has revealed the location of the transmembrane segments, the connecting loops and the relative position of the voltage-sensing charges.
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Nature Methods, 2014
Genetically encoded voltage indicators are on the brink of allowing neuronal activity to be directly imaged in vivo.
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Genetically encoded voltage indicators are on the brink of allowing neuronal activity to be directly imaged in vivo.
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Voltage responsivity of pyroelectric sensor
Sensors and Actuators A: Physical, 1999Abstract Composites polymer–ceramic using castor oil-based polyurethane (PU) as non-ferroelectric matrix and Lead Zirconate Titanate (PZT) as ceramic powder have been prepared at thin films form by spin coating. The samples are poled by appropriated electric field to show piezo and pyroelectric activity. The pyroelectric coefficient p ( T ) at 343 K
Sakamoto, W. K. +2 more
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High-voltage bidirectional current sensor
2017 IEEE 12th International Conference on ASIC (ASICON), 2017A high-voltage (HV) bidirectional current sensor using fully-differential amplifier (FDA) is designed and analyzed in this investigation. The FDA balances bidirectional input voltages of the HV current sensor by a feedback loop. Thus, the proposed design can detect the direction and magnitude of the current by the difference between the output voltage ...
Zong-You Hou +2 more
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Fluorescent boost for voltage sensors
Nature, 2016The development of a voltage sensor in which a microbial rhodopsin protein is fused with a fluorescent protein enables the neuronal activity of single cells in live animals to be measured with unprecedented speed and accuracy. ; © 2016 Macmillan Publishers Limited. Published online 27 January 2016.
Gradinaru, Viviana +1 more
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Optically controlled fiber voltage sensor
IEEE Photonics Technology Letters, 2000We describe a fiber optic voltage sensor with optically controlled sensitivity. The sensor operates at two widely separated wavelengths (633 and 976 nm), one of which is a control signal (976 nm). We show that at a properly chosen wavelength of the control signal and of the phase-retarding element, variations of the power of the control signal allow ...
V.N. Filippov +3 more
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Voltage Sensor for Proliferation
Science's STKE, 2006Hegle et al. provide evidence that a K + channel has an ion-independent signaling activity that stimulates cell proliferation. Transfection of the Drosophila ether-à-go-go (EAG) channel into mammalian cultured cells stimulated cell proliferation based on increased ...
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An integrated SAW voltage sensor
IEEE 1988 Ultrasonics Symposium Proceedings., 2003An integrated SAW (surface acoustic wave) voltage sensor is presented, based on the SAW oscillator system, with features such as high sensitivity, broad measuring range, high input impedance, and direct voltage-to-frequency conversion. The dual oscillator system possesses the additional advantage of temperature compensation.
M.J. Vellekoop, C.C.G. Visser
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