Fe3+-selective fluorescent probe based on rhodamine B and its application in bioimaging

A new Rhodamine B-based ‘on–off’ chemical sensor with high selectivity and sensitivity toward Fe3+ and its imaging in living cells

“…[36][37][38][39][40]26,41,42 Although, many rhodamine based sensors for Fe 3+ have been reported, 43,44 only few of them have been applied in biological systems for the detection of Fe 3+ . 45,46 Due to the paramagnetic nature of Fe 3+ ions, the majority of fluorescent chemosensors for Fe 3+ are fluorescence quenchers, [47][48][49] which certainly hinder fluorescence imaging in vivo and in situ monitoring. Moreover, the reversibility of fluorescence chemosensors is also an important aspect for practical http applications.…”

A rhodamine-based “turn-on” fluorescent probe for Fe3+ in aqueous solution and its application in bioimaging

“…However, only a few sensors for Fe 3? have been reported despite its importance in many biochemical processes at the cellular level [24][25][26][27][28]. Herein, we report a new rhodamine-based ''turn-on'' fluorescent chemosensor 2 (Scheme 1) for Fe 3?…”

A ratiometric fluorescence sensor for Fe3+ based on FRET and PET processes

“…Therefore, a FRET‐based fluorescent probe is more suitable for tracking and quantifying Fe 3+ in living systems. Nevertheless, only a few ratiometric fluorescence sensors for Fe 3+ ions have been reported , and the use of most is limited in live systems due to the narrow emission shift, short excitation wavelength and non‐biocompatibility . Therefore, the development of a fluorescence sensor for detecting and quantifying Fe 3+ with high accuracy and sensitivity remains challenging.…”