Stimuli responsive reversible high contrast off–on fluorescence switching of simple aryl-ether amine based aggregation-induced enhanced emission materials

RSC Advances ◽  
2015 ◽  
Vol 5 (119) ◽  
pp. 98618-98625 ◽  
Author(s):  
Anu Kundu ◽  
P. S. Hariharan ◽  
K. Prabakaran ◽  
Dohyun Moon ◽  
Savarimuthu Philip Anthony
Keyword(s):  
Schiff Base ◽  
High Contrast ◽  
Stimuli Responsive ◽  
Aryl Ether ◽  
Fluorescence Switching

Aryl-ether amine based simple Schiff base molecules showed rare stimuli responsive off–on fluorescence switching with high contrast.

scholarly journals Stimuli-responsive fluorescence switching of cyanostilbene derivatives: ultrasensitive water, acidochromism and mechanochromism

RSC Advances ◽  
2018 ◽  
Vol 8 (40) ◽  
pp. 22806-22812 ◽  
Author(s):  
Bin Wang ◽  
ChunYing Wei
Keyword(s):  
High Pressure ◽  
Photo Luminescence ◽  
Peak Shift ◽  
High Contrast ◽  
Stimuli Responsive ◽  
Luminescence Efficiency ◽  
Luminescence Peak ◽  
Donor Acceptor ◽  
Fluorescence Switching

A donor–acceptor dye exhibits high luminescence efficiency and high-contrast piezochromism with HLCT properties. The doped films show the ratiometric photo-luminescence peak shift under high pressure, interestingly, making them piezo-sensors.

Synthesis of tunable, red fluorescent aggregation-enhanced emissive organic fluorophores: stimuli-responsive high contrast off–on fluorescence switching

CrystEngComm ◽  
2018 ◽  
Vol 20 (5) ◽  
pp. 643-651 ◽  
Author(s):  
Palamarneri Sivaraman Hariharan ◽  
Parthasarathy Gayathri ◽  
Anu Kundu ◽  
Subramanian Karthikeyan ◽  
Dohyun Moon ◽  
...  
Keyword(s):  
Molecular Conformation ◽  
High Contrast ◽  
Stimuli Responsive ◽  
Organic Fluorophores ◽  
Fluorescence Switching

Molecular conformation controlled tunable and stimuli-responsive off–on fluorescence switching.

Schiff base-containing dextran nanogel as pH-sensitive drug delivery system of doxorubicin: Synthesis and characterization

2018 ◽  
Vol 33 (2) ◽  
pp. 170-181 ◽  
Author(s):  
Hongying Su ◽  
Wen Zhang ◽  
Yayun Wu ◽  
Xiaodong Han ◽  
Gang Liu ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Schiff Base ◽  
Drug Release ◽  
Drug Delivery System ◽  
Delivery System ◽  
Ph Sensitive ◽  
Cell Uptake ◽  
Stimuli Responsive ◽  
Drug Release Profile

Stimuli-responsive hydrogels have been widely researched as carrier systems, due to their excellent biocompatibility and responsiveness to external physiologic environment factors. In this study, dextran-based nanogel with covalently conjugated doxorubicin (DOX) was developed via Schiff base formation using the inverse microemulsion technique. Since the Schiff base linkages are acid-sensitive, drug release profile of the DOX-loaded nanogel would be pH-dependent. In vitro drug release studies confirmed that DOX was released much faster under acidic condition (pH 2.0, 5.0) than that at pH 7.4. Approximately 66, 28, and 9% of drug was released in 72 h at pH 2.0, 5.0, and 7.4, respectively. Cell uptake by the human breast cancer cell (MCF-7) demonstrated that the DOX-loaded dextran nanogel could be internalized through endocytosis and distributed in endocytic compartments inside tumor cells. These results indicated that the Schiff base-containing nanogel can serve as a pH-sensitive drug delivery system. And the presence of multiple aldehyde groups on the nanogel are available for further conjugations of targeting ligands or imaging probes.

Multi-Stimuli-Responsive Fluorescence Switching from a Pyridine-Functionalized Tetraphenylethene AIEgen

2018 ◽  
Vol 10 (6) ◽  
pp. 5819-5827 ◽  
Author(s):  
Jianbo Xiong ◽  
Kai Wang ◽  
Zhaoquan Yao ◽  
Bo Zou ◽  
Jialiang Xu ◽  
...  
Keyword(s):  
Stimuli Responsive ◽  
Fluorescence Switching

Non-invasive fluorescence switch in polymer films based on spiropyran-photoacid modified TPE

2018 ◽  
Vol 6 (8) ◽  
pp. 2113-2122 ◽  
Author(s):  
Qi Yu ◽  
Xing Su ◽  
Ting Zhang ◽  
Yu-Mo Zhang ◽  
Minjie Li ◽  
...  
Keyword(s):  
Polymer Films ◽  
High Contrast ◽  
Non Invasive ◽  
Fluorescence Switch ◽  
Fluorescence Switching

High-contrast fluorescence switching has been achieved in polymer films or fibers with non-invasive stimuli.

High-contrast mechanochromism and polymorphism-dependent fluorescence of difluoroboron β-diketonate complexes based on the effects of AIEE and halogen

RSC Advances ◽  
2016 ◽  
Vol 6 (40) ◽  
pp. 33755-33762 ◽  
Author(s):  
Yunpeng Qi ◽  
Yongtao Wang ◽  
Yongjiang Yu ◽  
Zhiyong Liu ◽  
Yan Zhang ◽  
...  
Keyword(s):  
Quantum Yields ◽  
High Contrast ◽  
Stimuli Responsive ◽  
Responsive Materials

A series of AIEE-active difluoroboron β-diketonate complexes derivatives exhibit high-contrast mechanochromism, polymorphism-dependent fluorescence, and extremely high fluorescent quantum yields which could be as promising stimuli-responsive materials.

Multi-stimuli responsive supramolecular gels based on a D–π–A structural cyanostilbene derivative with aggregation induced emission properties

Soft Matter ◽  
2019 ◽  
Vol 15 (7) ◽  
pp. 1658-1665 ◽  
Author(s):  
Xiaoxu Wang ◽  
Zeyang Ding ◽  
Yao Ma ◽  
Yuping Zhang ◽  
Hongxing Shang ◽  
...  
Keyword(s):  
Stimuli Responsive ◽  
Aggregation Induced Emission ◽  
Emission Properties ◽  
Supramolecular Gels ◽  
Fluorescence Switching ◽  
Reversible Gel

Reversible gel–sol transitions accompanied by fluorescence switching of BAPBIA gel upon multiple stimuli including heat, light, TBAF and TFA.

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