设计了一种基于取代咪唑的小分子荧光探针R-1,用于超灵敏、选择性和快速检测固体、凝胶、溶液以及薄膜中的肼。R-1对液体或蒸气形式的肼的反应非常有效。R-1在DMSO溶液中的发射带(λ em = 560 nm)显着减弱,斯托克斯位移为8598 cm -1 。最有趣的是,R-1在DMSO中也表现出凝胶化能力(R-1 gel ),当它直接或通过肼的蒸气接触时,它转变为溶胶形式(R-1 sol )。流变学和形态学研究表明,结晶自组装原纤维网络支持凝胶化特性。密度泛函理论(DFT)计算和1 H NMR 光谱都支持了识别机制。还研究了R-1在 C6(神经胶质瘤)细胞系中的细胞成像。这使得R-1成为一种完整、简单、快速且肉眼可见的方法,能够以高灵敏度 (0.08 ppb) 检测极少量的肼,并且对受体以及肼的每种可能状态都具有选择性。独立荧光聚合物薄膜形式的R-1的传感能力对于检查肼蒸气的泄漏也很重要。
[EN] TELOMERASE INHIBITORS AND METHODS OF THEIR USE<br/>[FR] INHIBITEURS DE LA TELOMERASE ET LEURS PROCEDES D'UTILISATION
申请人:GERON CORP
公开号:WO2002051409A1
公开(公告)日:2002-07-04
Thiazolidinedione compounds, compositions, and methods of inhibiting telomerase activity in vitro and treatment of telomerase mediated conditions or diseases ex vivo and in vivo are provided. The methods, compounds and compositions of the invention may be employed alone, or in combination with other pharmacologically active agents in the treatment of conditions or diseases mediated by telomerase activity, such as in the treatment of cancer. Also disclosed are methods for assaying or screening for inhibitors of telomerase activity.
Telomerase inhibitors and methods of their use
申请人:——
公开号:US20020120144A1
公开(公告)日:2002-08-29
Thiazolidinedione compounds, compositions, and methods of inhibiting telomerase activity in vitro and treatment of telomerase mediated conditions or diseases ex vivo and in vivo are provided. The methods, compounds and compositions of the invention may be employed alone, or in combination with other pharmacologically active agents in the treatment of conditions or diseases mediated by telomerase activity, such as in the treatment of cancer. Also disclosed are methods for assaying or screening for inhibitors of telomerase activity.
Imidazole assisted film-based fluorescent sensor for ultrasensitive detection of hydrazine
作者:Mohammad Masood Zafar、Subash Chandra Sahoo、Vakayil K Praveen、Nidhi Tyagi、Rakesh K. Mishra
DOI:10.1039/d4tc00567h
日期:——
molecule fluorescentprobe R-1 was designed for the ultrasensitive, selective and quick detection of hydrazine in solid, gel, solution as well as in thin film. The response of R-1 to hydrazine in liquid or vapour form was very effective. The emission band (λem = 560 nm) of R-1 in DMSO solution with Stokes shift of 8598 cm−1 was diminished significantly. Most intriguingly, R-1 also exhibited gelation
设计了一种基于取代咪唑的小分子荧光探针R-1,用于超灵敏、选择性和快速检测固体、凝胶、溶液以及薄膜中的肼。R-1对液体或蒸气形式的肼的反应非常有效。R-1在DMSO溶液中的发射带(λ em = 560 nm)显着减弱,斯托克斯位移为8598 cm -1 。最有趣的是,R-1在DMSO中也表现出凝胶化能力(R-1 gel ),当它直接或通过肼的蒸气接触时,它转变为溶胶形式(R-1 sol )。流变学和形态学研究表明,结晶自组装原纤维网络支持凝胶化特性。密度泛函理论(DFT)计算和1 H NMR 光谱都支持了识别机制。还研究了R-1在 C6(神经胶质瘤)细胞系中的细胞成像。这使得R-1成为一种完整、简单、快速且肉眼可见的方法,能够以高灵敏度 (0.08 ppb) 检测极少量的肼,并且对受体以及肼的每种可能状态都具有选择性。独立荧光聚合物薄膜形式的R-1的传感能力对于检查肼蒸气的泄漏也很重要。