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A Bright NIR-II Fluorescence Probe for Vascular and Tumor Imaging
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拡張されたin vivo電圧イメージングのための明快で光安定した化学遺伝指標

Ahmed S Abdelfattah1, Takashi Kawashima1, Amrita Singh1,2

  • 1Janelia Research Campus, Howard Hughes Medical Institute, Ashburn, VA 20147, USA.

Science (New York, N.Y.)
|August 3, 2019
PubMed
まとめ

研究者達が開発したVoltronは 遺伝的にコードされた新しい電圧指標 (GEVI) です この新しいGEVIは 合成染料を用いて より明るく 安定した画像を撮り 科学者が10倍の数のニューロンを 長期にわたって監視できるようにしています

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Indicators02:39

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Certain organic substances change color in dilute solution when the hydronium ion concentration reaches a particular value. For example, phenolphthalein is a colorless substance in any aqueous solution with a hydronium ion concentration greater than 5.0 × 10−9 M (pH < 8.3). In more basic solutions where the hydronium ion concentration is less than 5.0 × 10−9 M (pH > 8.3), it is red or pink. Substances such as phenolphthalein, which can be used to determine the pH of a solution, are...
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Voltage Dividers01:14

Voltage Dividers

In electrical circuits, resistors can be connected in series, sequentially linked one after the other. In a series configuration, the same current flows through each resistor. Ohm's law is a fundamental principle to understand the behavior of resistors in series. It expresses the voltage across these resistors in terms of the current and resistance.
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A three-phase generator produces three voltages that are equal in magnitude but have a phase difference of 120 degrees. This identical magnitude and equal phase separated voltages are known as the balanced voltages and help to minimize power loss while ensuring a steady delivery of energy to connected loads. As voltage sources in a three-phase system can be configured in a wye or a delta formation, the loads connected to these systems can also be arranged in either configuration. This...
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Multiple Voltage Sources

Generally, a single battery is not enough to power some devices. In such cases, batteries can be combined in two ways: in series or in parallel.
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Voltage Doubler Circuit

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