相关实验视频
Updated: Jul 2, 2025

05:51
A Bright NIR-II Fluorescence Probe for Vascular and Tumor Imaging
Published on: March 17, 2023
1.8K
构建一个Cu2+-响应的NIR光探测器及其多功能应用的初步评估
Tao Zhang1, Huirong Chi1, Jingjie Guo1
1Department of Oral, Shanghai Eighth People's Hospital, Xuhui Branch of Shanghai Sixth People's Hospital, Shanghai, 200233, China.
Journal of fluorescence
|February 22, 2024
概括
一个新的近红外 (NIR) 探测器,HX,使得铜 (II) 离子 (Cu2+) 的敏感检测和成像. 这个探头可视化细胞内铜水平并评估铜输送器功能,有助于疾病诊断和药物敏感性查.
科学领域:
- 生物医学工程 生物医学工程
- 分析化学 分析化学
- 毒理学 毒理学 毒理学
背景情况:
- 铜 (II) 离子 (Cu2+) 是普遍存在的环境污染物,也是参与许多生理和病理过程的必要内源性离子.
- 2+水平的不平衡与各种人类疾病有关,需要准确的检测和监测方法.
- 现有的Cu2+检测方法可能缺乏灵敏度或体内适用性.
研究的目的:
- 开发一种新的响应式探头,用于对Cu2+的敏感检测和量化.
- 为了可视化和监测生物系统中的Cu2+动态,包括细胞和活体动物.
- 探索探头在评估铜输送器功能和预测药物敏感性的实用性.
主要方法:
- 开发一个响应Cu2+的近红外 (NIR) 光探测器,被指定为HX.
- 探测器对Cu2+的反应的表征,包括色度和光变化.
- 在细胞和活体动物中使用HX探头对Cu2+进行体外和体内成像.
- 监测瘤中的Cu2+吸收,以评估铜输送器功能.
主要成果:
- 在对Cu2+的反应中,HX探测器表现出明显的颜色变化和线性依赖的NIR光辐射.
- 细胞内Cu2+波动和肝脏Cu2+积累在具有低背景信号的细胞和动物中成功可视化.
- 探测器有效地监测了瘤中的Cu2+吸收,证明了其评估铜输送器功能的潜力.
结论:
- 开发的HX探头是生物系统中Cu2+的敏感和特定检测和成像的宝贵工具.
- HX可可视化细胞和器官水平的铜状况,有助于理解与铜相关的病理.
- 探测器监测瘤Cu2+吸收的能力为评估铜输送器功能和查患者对基药物敏感性提供了一个有希望的方法.
更多相关视频
12:48Construction of Cell-based Neurotransmitter Fluorescent Engineered Reporters CNiFERs for Optical Detection of Neurotransmitters In Vivo
Published on: May 12, 2016
13.2K
13:51Synthesis of Core-shell Lanthanide-doped Upconversion Nanocrystals for Cellular Applications
Published on: November 10, 2017
15.4K
相关概念视频
Labeling DNA Probes
8.2K
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...
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...
8.2K
Photoluminescence: Applications
395
Photoluminescence offers a wide range of applications due to its inherent sensitivity and selectivity. This technique allows for both direct and indirect analyses of the analyte. Direct quantitative analysis is possible when the analyte exhibits a favorable quantum yield for fluorescence or phosphorescence. However, an indirect analysis may be feasible if the analyte is not fluorescent or phosphorescent, or if the quantum yield is unfavorable. Indirect methods include reacting the analyte with...
395