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

Conversion from iminium to alkanolamine form of Sanguinarine, a key member of benzylisoquinoline alkaloid family, is monitored in micellar environments by fluorescence switch.

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Efficient Synthesis and Properties of a Photochromic Diarylethene Bearing Thiophene and Isoxazole Moieties

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.295-297.1070 ◽

2011 ◽

Vol 295-297 ◽

pp. 1070-1073

Author(s):

Hong Liang Liu ◽

Gang Liu ◽

Shi Qiang Cui ◽

Wei Jun Liu

Keyword(s):

Uv Light ◽

Amorphous Film ◽

Optical Storage ◽

Efficient Synthesis ◽

Fluorescent Properties ◽

Strong Fluorescence ◽

Closed Ring ◽

Fluorescence Switch ◽

Open Ring ◽

Fluorescence Switching

A novel photochromic diarylethene based on isoxazole moiety was synthesized and its photochromic and fluorescent properties were also investigated. This compound exhibited reversible photochromism, changing from colorless to red after irradiation with UV light both in solution and in poly-methyl methacrylate (PMMA) amorphous film. Also, it exhibited remarkable fluorescence switching in the solid state. The results showed that the diarylethene exhibited a relatively strong fluorescence switch along with the photochromism from open-ring isomer to closed-ring isomer. Using this dithienylethene 1c as optical storage was performed successfully.

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

RSC Advances ◽

10.1039/c8ra03598a ◽

2018 ◽

Vol 8 (40) ◽

pp. 22806-22812 ◽

Cited By ~ 19

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.

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

CrystEngComm ◽

10.1039/c7ce01867c ◽

2018 ◽

Vol 20 (5) ◽

pp. 643-651 ◽

Cited By ~ 17

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.

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High-Contrast Red-Green-Blue Tricolor Fluorescence Switching in Bicomponent Molecular Film

Angewandte Chemie International Edition ◽

10.1002/anie.201411568 ◽

2015 ◽

Vol 54 (14) ◽

pp. 4330-4333 ◽

Cited By ~ 98

Author(s):

Hyeong-Ju Kim ◽

Dong Ryeol Whang ◽

Johannes Gierschner ◽

Chong Han Lee ◽

Soo Young Park

Keyword(s):

High Contrast ◽

Molecular Film ◽

Fluorescence Switching

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Reversible fluorescence modulation based on photochromic diarylethene and fluorescent coumarin

Journal of Materials Research ◽

10.1557/jmr.2007.0199 ◽

2007 ◽

Vol 22 (6) ◽

pp. 1558-1563 ◽

Cited By ~ 9

Author(s):

Xiaohai Sheng ◽

Aidong Peng ◽

Hongbing Fu ◽

Jiannian Yao ◽

Yuanyuan Liu ◽

...

Keyword(s):

Luminescence Intensity ◽

High Sensitivity ◽

Optical Data ◽

High Contrast ◽

Photochromic Compound ◽

Image Storage ◽

Fluorescence Switch ◽

Fluorescence Modulation ◽

Fluorescence Quencher

A fluorescence switch by the photoisomerization of a photochromic compound in CH3CN and in a polymer film using a bistable photochromic (1,2-bis(2-methylbenzo[b]thiophen-3-yl) hexafluorocyclopentene) (BTF6) and a fluorescent 3-(2-benzothiazolyl)-7-(diethylamino) coumarin (coumarin6) was demonstrated. Because only the closed form of BTF6 serves as a fluorescence quencher of coumarin6, and the read (406 nm), write (254 nm), and erase (>500 nm) wavelengths are well-separated, a reversible modulation of the fluorescence of coumarin6 with high contrast and high sensitivity is expected to be realized. This system may represent an alternative to the fluorescence switches that are based on covalent systems in the potentially long-term optical data or image storage schemes utilizing luminescence intensity readout.

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Time-resolved surface rearrangements of polymer films monitored by dynamic recovery contact angle (DRCA)

RSC Advances ◽

10.1039/c4ra01329h ◽

2014 ◽

Vol 4 (39) ◽

pp. 20094-20101 ◽

Cited By ~ 10

Author(s):

A. Catarina C. Esteves ◽

I. Doğan Günbas ◽

Jan M. van Riel ◽

Bart A. J. Noordover ◽

Gijsbertus de With ◽

...

Keyword(s):

Contact Angle ◽

Polymer Films ◽

Dynamic Recovery ◽

Time Resolved ◽

Non Invasive ◽

Time Frames

The time-frames involved in surface rearrangements of polymer films are investigated by Dynamic Recovery Contact Angle (DRCA) through a simple, non-invasive and reconstructive approach.

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