A naphthalimide-based fluorescence ‘‘turn-on’’ chemosensor for highly selective detection of carbon monoxide: imaging applications in living cells
作者:Biswajit Das、Somenath Lohar、Ayan Patra、Ejaj Ahmmed、Sushil Kumar Mandal、Jatindra Nath Bhakta、Koushik Dhara、Pabitra Chattopadhyay
DOI:10.1039/c8nj02552e
日期:——
species. The detection method was achieved through the transformation of the nitro group of COFP to an amino functionalized derivative in the presence of CO without using any heavy metals e.g. Pd, Rh, Ru etc. The chemosensor prompted a ‘turn-on’ fluorescence response to CO with a simultaneous increase of the fluorescence intensity by more than 33 times. The LOD (limit of detection) was calculated to be as
设计并合成了一种基于萘二甲酰亚胺的荧光化学传感器,用于检测HEPES缓冲液(pH 7.4,37°C)中的一氧化碳(CO)。在各种相关的活性氧,氮和硫物质上,检测过程对CO的选择性很高。同样,在生物学上相关的金属离子和/或物质的存在下,荧光反应也不会受到阻碍。该检测方法是通过在CO存在下将COFP的硝基转化为氨基官能化衍生物而实现的,而无需使用任何重金属,例如Pd,Rh,Ru等。化学传感器提示了对CO的“开启”荧光反应,同时荧光强度增加了33倍以上。使用3σ方法计算的LOD(检测限)低至123 nM 。此外,化学传感器能够监测C6神经胶质瘤细胞系中细胞内CO的变化。