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相关概念视频

Channel Rhodopsins01:11

Channel Rhodopsins

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Most organisms use photoreceptors to sense and respond to light. Examples of photoreceptors include bacteriorhodopsins and bacteriophytochromes in some bacteria, phytochromes in plants, and rhodopsins in the photoreceptor cells of the vertebral retina. The light-sensitive property of these receptors is because of the bound chromophores, such as bilin in the phytochromes and retinal in the rhodopsins.
Rhodopsins belong to the family of cell surface proteins called G-protein coupled receptors,...
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相关实验视频

Updated: Jun 28, 2025

Gold Nanorod-assisted Optical Stimulation of Neuronal Cells
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在手术上活跃的量子纳米螺钉.

Finn Purcell-Milton1,2, Vera A Kuznetsova1, Xue Bai1

  • 1School of Chemistry, CRANN and AMBER Research Centres, Trinity College Dublin, Dublin, Ireland. finn.purcellmilton@tudublin.ie.

Nanoscale horizons
|April 10, 2024
PubMed
概括
此摘要是机器生成的。

研究人员开发了一本小说.

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Near Infrared NIr Light Increases Expression of a Marker of Mitochondrial Function in the Mouse Vestibular Sensory Epithelium
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Near Infrared NIr Light Increases Expression of a Marker of Mitochondrial Function in the Mouse Vestibular Sensory Epithelium

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Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications
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相关实验视频

Last Updated: Jun 28, 2025

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Near Infrared NIr Light Increases Expression of a Marker of Mitochondrial Function in the Mouse Vestibular Sensory Epithelium
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Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications
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科学领域:

  • 材料科学和纳米技术
  • 量子有限的纳米结构
  • 半导体异构结构 半导体异构结构

背景情况:

  • 量子限制的CdSe/CdS纳米结构表现出由形态学影响的独特特性.
  • 了解结构属性关系对于纳米材料开发至关重要.

研究的目的:

  • 报告CdSe/CdS核心外异构结构的新"纳米"形态.
  • 为了研究这种新形态的调节性,光发光特性和手术活动.
  • 为了评估性纳米结构的生物活性和enantioselectivity.

主要方法:

  • 合成具有"纳米钉"形态的CdSe/CdS核心外异构.
  • 结构和光发光特性的表征.
  • 连接物交换以诱导手术活动.
  • 在A549癌细胞上进行细胞吸收和细胞毒性测定.
  • 在单层上分析福斯特共振能量转移 (FRET).

主要成果:

  • 合成了CdSe/CdS异构的新"纳米钉"形态,具有可调节的尺寸和特殊的光发光.
  • 通过连接体交换成功诱导了手术活动,这取决于形态,外厚度和手术连接体度.
  • 在人类肺癌细胞 (A549) 中观察到细胞吸收和细胞毒性显著的酶选择性.
  • 单层分析证实没有FRET工艺.

结论:

  • "纳米针"CdSe/CdS异构构构成一种具有显著潜力的可调节纳米材料.
  • 通过结构参数和联结体度有效控制联结体诱导的性.
  • 在生物活性中观察到的反选择性突出显示了针对性治疗中的潜在应用.
  • 缺少FRET表明它适用于需要在相邻纳米结构之间进行最小能量传输的应用.