相关实验视频

Updated: May 12, 2025

Preparation, Purification, and Characterization of Lanthanide Complexes for Use as Contrast Agents for Magnetic Resonance Imaging

Preparation, Purification, and Characterization of Lanthanide Complexes for Use as Contrast Agents for Magnetic Resonance Imaging

Published on: July 21, 2011

用响应式MRI对比剂进行细胞标记是通过固相合成实现的

Liam Connah¹, Danijela Bataveljić², Aleksandra M Bondžić³

¹MR Neuroimaging Agents, Max Planck Institute for Biological Cybernetics, 72076 Tübingen, Germany.

Bioconjugate chemistry

|May 8, 2025

概括

研究人员开发了一种用于磁共振成像 (MRI) 的新型智能对比剂 (SCA). 这种对有反应的探针有效地标记和内化细胞,克服了分子成像中的关键局限性.

科学领域:

生物医学工程生物医学工程
分子成像学分子成像学
神经科学是一个神经科学.

背景情况:

用于MRI的智能对比剂 (SCAs) 通过改变基于生物标志物度的信号来实现功能分子成像.
对SCAs的一个重大挑战是,在研究细胞内部过程时,其在细胞中积累和内部化不足.

研究的目的:

开发一种多功能SCA,能够将细胞膜纳入和内部化.
创建一个对离子有反应的MRI探针,用于增强细胞成像.

主要方法:

采用固相合成来创建一个三聚体SCA.
一个疏水性四甲基基组被纳入,以促进与初级大鼠天体细胞的相互作用.
评估了探测器的活动,放松性变化,细胞标记,内化,细胞毒性和电生理学影响.

主要成果:

合成的SCA显示了高触发的纵向和横向放松性变化.
探测器成功标记了细胞膜,并将其内化为星细胞.
没有观察到显著的细胞毒性或对细胞电生理学的不良影响.

结论:

开发的多功能SCA有效地解决了细胞吸收和内化限制.
这种新型探测器显示了使用MRI进行先进的细胞内分子成像的前景.
该药物适用于研究星球细胞中的细胞内过程,而不会影响细胞活力或功能.

更多相关视频

Preparation and In Vitro Characterization of Dendrimer-based Contrast Agents for Magnetic Resonance Imaging

Preparation and In Vitro Characterization of Dendrimer-based Contrast Agents for Magnetic Resonance Imaging

Published on: December 4, 2016

MR Molecular Imaging of Prostate Cancer with a Small Molecular CLT1 Peptide Targeted Contrast Agent

MR Molecular Imaging of Prostate Cancer with a Small Molecular CLT1 Peptide Targeted Contrast Agent

Published on: September 3, 2013

相关概念视频

Labeling DNA Probes

Labeling DNA Probes

DNA probes are fragments of DNA labeled with a reporter tag to enable their detection or purification. The resulting labeled DNA probes can then hybridize to target nucleic acid sequences through complementary base-pairing, and may be used to recover or identify these regions.
Radioisotopes, fluorophores, or small molecule binding partners like biotin or digoxigenin, are the most widely used reporter tags for labeling DNA probes. These labels can be attached to the probe DNA molecule via...