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colorimetric and turn-on fluorescent probe for rapid determination of hydrazine in real water samples and its bioimaging

《化学科学与工程前沿（英文）》 2023年第17卷第1期页码 24-33 doi: 10.1007/s11705-022-2171-1

摘要： Hydrazine is extremely toxic and causes severe harm to human body. Herein, a novel fluorescent probe 4-oxo-2-styryl-4H-chromen-3-yl thiophene-2-carboxylate (FHT) was synthesized for detecting hydrazine by using natural cinnamaldehyde as starting material. This probe exhibited significantly enhanced fluorescence response towards hydrazine over various common metal ions, anions, and amine compounds. The detection limit of probe FHT for hydrazine was as low as 0.14 μmol·L^–1, significantly lower than that of the threshold value of 0.312 μmol·L^–1, imposed by the Environmental Protection Agency. Moreover, the proposed probe was able to detect hydrazine within wide pH (5–10) and linear detection ranges (0–110 μmol·L^–1). This probe was employed for determining trace hydrazine in different environmental water samples. The probe FHT-loaded filter paper strips were able to conveniently detect hydrazine of low concentration through distinct naked-eye and fluorescent color changes. Importantly, the probe FHT with low cytotoxicity was successfully applied to visualize hydrazine in living Hela cells and zebrafish.

关键词： cinnamaldehyde 3-hydroxychromone derivative hydrazine fluorescent probe

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Glyco-functionalised quantum dots and their progress in cancer diagnosis and treatment

Jayshree Ashree, Qi Wang, Yimin Chao

《化学科学与工程前沿（英文）》 2020年第14卷第3期页码 365-377 doi: 10.1007/s11705-019-1863-7

摘要： Despite all major breakthroughs in recent years of research, we are still unsuccessful to effectively diagnose and treat cancer that has express and metastasizes. Thus, the development of a novel approach for cancer detection and treatment is crucial. Recent progress in Glyconanotechnology has allowed the use of glycans and lectins as bio-functional molecules for many biological and biomedical applications. With the known advantages of quantum dots (QDs) and versatility of carbohydrates and lectins, Glyco-functionalised QD is a new prospect in constructing biomedical imaging platform for cancer behaviour study as well as treatment. In this review, we aim to describe the current utilisation of Glyco-functionalised QDs as well as their future prospective to interpret and confront cancer.

关键词： carbohydrate leptin glyco-functionalised QD bioimaging cancer diagnosis and treatment

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基于临床可用的亚甲基蓝近红外二区成像用于泌尿系统结构及功能成像的研究 Article

薛丁玮, 吴迪, 陆泽毅, Jochen Neuhaus, 阿卜杜热合曼·则比布拉, 冯哲, 成晟, 周静, 钱骏, 李恭会

《工程（英文）》 2023年第22卷第3期页码 149-158 doi: 10.1016/j.eng.2021.07.032

摘要：

精准的结构和功能成像对于泌尿系统疾病的诊断和预后至关重要。近红外二区光谱区域（second nearinfrared spectral region, NIR-II, 1000~1700 nm）荧光生物成像相较于传统的荧光生物成像具有更高的空间分辨率、更深的穿透力和更好的信噪比，但其临床适用性有限。在此，本文首次报道了基于临床可用且经肾脏排泄的荧光染料亚甲基蓝（methylene blue, MB）对活体泌尿系统进行NIR-II 荧光成像，该技术不仅可实现清晰的有创/无创尿路造影，而且还能有效且无创地检测肾功能。以上研究结果表明MB辅助的NIR-II 荧光成像在临床/基础研究中泌尿系统结构和功能成像领域中具有较大的应用前景。

关键词：近红外二区荧光亚甲基蓝肾功能泌尿系统实时成像