相关实验视频

Updated: Jun 11, 2025

Facile Preparation and Photoactivation of Prodrug-Dye Nanoassemblies

Facile Preparation and Photoactivation of Prodrug-Dye Nanoassemblies

Published on: February 17, 2023

关于新型氨酸化NIR BODIPY染料对X射线的光学反应

Nikita Lifanovsky¹, Daniil Spector², Anton Egorov³

¹Emanuel Institute of Biochemical Physics, Russian Academy of Sciences, 4 Kosygina, Moscow 119334, Russia; National Research Nuclear University MEPhI, 31 Kashirskoe sh., Moscow 115409, Russia.

Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy

|October 9, 2024

概括

新的氨酸合近红外 (NIR) 体染料对X射线照射呈现出多功能光学反应,特别是在特定溶剂中. 这些敏感染料对辐射剂量测量应用具有前景.

科学领域:

有机化学有机化学
摄影化学的使用.
材料科学材料科学材料科学

背景情况:

二甲基 (BODIPY) 染料以其独特的光物理特性而闻名.
近红外 (NIR) 发射染料对于各种传感应用非常有价值.
开发灵敏可靠的X射线探测器对于辐射剂量测量至关重要.

研究的目的:

为了合成和表征氨酸合的新型NIR BODIPY染料.
为了研究这些染料在不同溶剂中对X射线辐射的光学反应.
评估它们作为剂量测量的X射线探针的潜力.

主要方法:

合成了三种新的氨酸化NIR BODIPY染料 (化合物16-18).
在X射线曝光之前和之后 (高达1000 Gy) 的光谱表征 (吸收和光).
在各种溶剂中对染料反应的评估,包括CCl4,CHCl3,乙二,烯和-1-醇.

主要成果:

染料在化溶剂和酸中暴露于X射线时表现出显著的光学变化 (吸收和光).
观察到色度和光反应,化合物17的颜色从绿色变为蓝色,然后是粉红色.
化合物16在整个0-1000Gy范围显示了线性比度光反应,这是BODIPY基于X射线探测器的首次.
证明了高灵敏度,化合物18具有低检测极限 (LOD) 从0.29到6.73 Gy.

结论:

合成的氨酸合的NIR BODIPY染料对X射线辐射敏感.
它们的光学反应依赖于溶剂,在化溶剂和酸中出现了显著的变化.
这些染料在辐射处理和灭菌中对剂量测量应用具有显著的前景.

关键词:

身体学身体学剂量测量方法剂量测量方法染料是一种染料.光是一种光效应.辐射检测检测辐射检测器这是X射线.

更多相关视频

Conventional BODIPY Conjugates for Live-Cell Super-Resolution Microscopy and Single-Molecule Tracking

Conventional BODIPY Conjugates for Live-Cell Super-Resolution Microscopy and Single-Molecule Tracking

Published on: June 8, 2020

Microwave-assisted Intramolecular Dehydrogenative Diels-Alder Reactions for the Synthesis of Functionalized Naphthalenes/Solvatochromic Dyes

Microwave-assisted Intramolecular Dehydrogenative Diels-Alder Reactions for the Synthesis of Functionalized Naphthalenes/Solvatochromic Dyes

Published on: April 1, 2013

相关概念视频

UV–Vis Spectroscopy of Conjugated Systems

UV–Vis Spectroscopy of Conjugated Systems

Organic compounds with conjugated double bonds show strong absorption features in the UV–visible region of the electromagnetic spectrum attributed to π → π* electronic excitations. Generally, a UV–vis absorption spectrum is recorded as a plot of absorbance vs wavelength. The wavelength of maximum absorbance, which manifests as a peak in the absorption spectrum, is denoted as λmax.
One of the factors influencing λmax is the extent...

Aryldiazonium Salts to Azo Dyes: Diazo Coupling

Aryldiazonium Salts to Azo Dyes: Diazo Coupling

The reaction of weakly electrophilic aryldiazonium (also called arenediazonium) salts with highly activated aromatic compounds leads to the formation of products with an —N=N— link, called an azo linkage. This reaction, presented in Figure 1, is known as diazo coupling and occurs without the loss of the nitrogen atoms of the aryldiazonium salt. Highly activated aromatic compounds such as phenols or arylamines favor the diazo coupling reaction. The coupling generally occurs at the...