一个反应性和特定的传感器,用于基于活动的F-MRI对的检测
Lucia M Lee1,2, Nishanth D Tirukoti1,3, Balamurugan Subramani1
1Department of Molecular Chemistry and Materials Science, Weizmann Institute of Science, Rehovot 7610001, Israel.
ACS sensors
|October 24, 2024
概括
我们开发了一种新型的合成化传感器,用于使用-19磁共振成像 (F-MRI) 绘制离子 (Zn2+) 水平. 这种基于活动的传感器提供"启动"信号,使得可以检测短暂的波动.
科学领域:
- 生物医学工程 生物医学工程
- 化学生物学 化学生物学
- 医疗成像医学成像
背景情况:
- 生物金属离子度的快速波动挑战了目前的检测方法.
- -19磁共振成像 (F-MRI) 提供了阴离子映射的潜力,但需要合适的传感器.
- 基于活动的传感为开发响应性分子探测器提供了一个模块化方法.
研究的目的:
- 开发一种新型的合成化传感器,用于基于活动的离子 (Zn2+) 的F-MRI.
- 为了证明传感器的特异性和性能.
- 打开启动方式
- 对于检测暂时的Zn2+升高的反应.
主要方法:
- 化传感器的设计和合成,该传感器结合了用于 Zn 2+ 识别的二聚胺支架和甲酸部分.
- 使用F-NMR光谱学观察Zn2+诱导的水解时的12 ppm频率转移.
- 应用传感器用于F-MRI以高特异性可视化Zn2+分布.
主要成果:
- 合成传感器对Zn2+具有很高的反应性和特异性.
- 2+结合触发不可逆转的水解,导致显著的F-NMR频率转移.
- 传感器可以使一个
- 打开启动方式
- 19F-MRI信号,有效地绘制Zn2+分布图,并突出其对其他金属离子的特异性.
结论:
- 开发的基于活动的传感器为不稳定Zn2+的F-MRI提供了一个强大的工具.
- 这是不可逆转的,不可逆转的.
- 打开启动方式
- 该机制允许检测短暂的金属离子变化.
- 这项工作扩展了F-MRI的分子工具箱,并为开发其他金属离子的传感器提供了一个平台.
更多相关视频
08:12Monitoring Dendritic Cell Migration using 19F / 1H Magnetic Resonance Imaging
Published on: March 20, 2013
11.8K
13:56The Use of Magnetic Resonance Spectroscopy as a Tool for the Measurement of Bi-hemispheric Transcranial Electric Stimulation Effects on Primary Motor Cortex Metabolism
Published on: November 19, 2014
20.1K
相关概念视频
Magnetic Resonance Imaging
5.0K
Magnetic resonance imaging (MRI) is a noninvasive medical imaging technique based on a phenomenon of nuclear physics discovered in the 1930s, in which matter exposed to magnetic fields and radio waves was found to emit radio signals. In 1970, a physician and researcher named Raymond Damadian noticed that malignant (cancerous) tissue gave off different signals than normal body tissue. He applied for a patent for the first MRI scanning device in clinical use by the early 1980s. The early MRI...
5.0K
Atomic Nuclei: Magnetic Resonance
636
The number of nuclear spins aligned in the lower energy state is slightly greater than those in the higher energy state. In the presence of an external magnetic field, as the spins precess at the Larmor frequency, the excess population results in a net magnetization oriented along the z axis. When a pulse or a short burst of radio waves at the Larmor frequency is applied along the x axis, the coupling of frequencies causes resonance and flips the nuclear spins of the excess population from the...
636
