AIE Luminogens for Visualizing Cell Structures and Functions

Fluorescent Polystyrene Films for the Detection of Volatile Organic Compounds Using the Twisted Intramolecular Charge Transfer Mechanism

“…The effect, called aggregation induced emission (AIE), arises from the restriction of fluorophore intramolecular motions (RIM), which promotes bright luminescence in the aggregate and solid state [ 5 , 7 ]. By enabling light emission in the practically useful solid state, AIE fluorophores demonstrate to show a striking impact on energy, optoelectronics, life science and environment [ 9 , 13 , 14 , 15 , 16 , 17 , 18 ]. Notably, for AIE systems with donor-acceptor structure, the emission quenching is often addressed to the formation of a non-emissive twisted intramolecular charge transfer (TICT) state that occurs in solution, while in aggregates or in viscous media, transition from locally excited (LE) state to TICT is inhibited [ 10 ].…”

Aggregation‐induced Emission Based Fluorogens for Mitochondria‐targeted Tumor Imaging and Theranostics

“…In the past decade, a number of AIE probes have been developed for targeted mitochondria imaging and dynamic tracking. Due to the intrinsic AIE property, they show superior advantages over conventional commercial dyes, such as high photostability, large stokes shift and high quantum yield [8]. From the perspective of probe design, it can be clearly seen that these AIE probes are composed of two moieties, the emission core and the targeting unit.…”

“…[7] Opposite to ACQ dyes, AIE probes release stronger fluorescence in concentrated or aggregated state, which helps to resist photobleaching. [8] The AIE mechanism is investigated to be a result of restriction of intramolecular motion (RIM) which includes restriction of intramolecular rotation (RIR) and restriction of intramolecular vibration (RIV). [9] In detail, AIE fluorogens (AIEgens) generally consist of several aromatic rings attached to a conjugated core, forming propeller-shaped structures.…”

“…In 2001, a new concept called aggregation‐induced emission (AIE) was pointed out by Tang's group [7] . Opposite to ACQ dyes, AIE probes release stronger fluorescence in concentrated or aggregated state, which helps to resist photobleaching [8] . The AIE mechanism is investigated to be a result of restriction of intramolecular motion (RIM) which includes restriction of intramolecular rotation (RIR) and restriction of intramolecular vibration (RIV) [9] .…”

Facile fabrication of AIE/AIEE-active fluorescent nanoparticles based on barbituric for cell imaging applications

“…13,14 Up to now, the range of emission wavelengths of AIE-active molecules that have been developed for cell imaging covers the entire visible light range from blue to red. [15][16][17][18] However, AIE-luminophores with red and near-infrared emission are desired for avoiding possible autouorescence from biological samples and reducing photocytotoxicity. [19][20][21] To address these issues, a few examples have been reported to extend the electronic conjugation of the uorophores, thus decreasing the energy gap between the electronic ground state and excited state and consequently tuning the absorption and emission characters bathochromically.…”