UM
Ratiometric fluorescent nanosensor based on water soluble carbon nanodots with multiple sensing capacities
Qu S.; Chen H.; Zheng X.; Cao J.; Liu X.
2013-06-21
Source PublicationNanoscale
ISSN20403364 20403372
Volume5Issue:12Pages:5514-5518
AbstractA construction strategy for ratiometric fluorescent nanosensors based on water soluble C-dots was developed, which could sense temperature (10-82 °C), pH values (lower than 6.0 or higher than 8.6) and Fe ions (>0.04 μM) by monitoring the intensity ratios of dual fluorescence bands (I/I) under 380 nm excitation. I/I decreased nearly linearly with increasing temperature from 10 to 82 °C. In the pH range from 8.6 to 6.0, the I/I was nearly constant at 0.75. I/I gradually decreased from 0.75 to 0.52 in the pH range from 6.0 to 1.9, and increased nearly linearly from 0.52 to 0.75 in the pH range from 1.9 to 1.0. The dual fluorescence behavior was reversible in the pH range from 1.0 to 8.6. As pH increased from 10.6 to 13.0, the green fluorescence band decreased continuously and blue shifted with a nearly linear increase in I/I from 0.75 to 2.15, while the green fluorescence band cannot be recovered by decreasing the pH value. I/I was ultrasensitive and selective in presence of Fe (>0.04 μM) in neutral aqueous environments. The two fluorescence bands of the C-dots were attributed to different surface states that may produce different fluorescent signal responses to external physical or chemical stimuli. © 2013 The Royal Society of Chemistry.
DOI10.1039/c3nr00619k
URLView the original
Language英語
全文获取链接
引用统计
被引频次[WOS]:148   [WOS记录]     [WOS相关记录]
Document TypeJournal article
专题University of Macau
AffiliationChangchun Institute of Optics Fine Mechanics and Physics Chinese Academy of Sciences
推荐引用方式
GB/T 7714
Qu S.,Chen H.,Zheng X.,et al. Ratiometric fluorescent nanosensor based on water soluble carbon nanodots with multiple sensing capacities[J]. Nanoscale,2013,5(12):5514-5518.
APA Qu S.,Chen H.,Zheng X.,Cao J.,&Liu X..(2013).Ratiometric fluorescent nanosensor based on water soluble carbon nanodots with multiple sensing capacities.Nanoscale,5(12),5514-5518.
MLA Qu S.,et al."Ratiometric fluorescent nanosensor based on water soluble carbon nanodots with multiple sensing capacities".Nanoscale 5.12(2013):5514-5518.
个性服务
推荐该条目
保存到收藏夹
查看访问统计
导出为Endnote文件
Google Scholar
中相似的文章 Google Scholar
[Qu S.]的文章
[Chen H.]的文章
[Zheng X.]的文章
Baidu academic
中相似的文章 Baidu academic
[Qu S.]的文章
[Chen H.]的文章
[Zheng X.]的文章
Bing Scholar
中相似的文章 Bing Scholar
[Qu S.]的文章
[Chen H.]的文章
[Zheng X.]的文章
相关权益政策
暂无数据
收藏/分享
所有评论 (0)
暂无评论
 

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。