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Themed collection Shape-Responsive Fluorophores

46 items
Editorial

Themed issue on shape-responsive fluorophores

Guest editors Ben Zhong Tang and Kyril M. Solntsev introduce this Journal of Materials Chemistry C themed issue on shape-responsive fluorophores.

Graphical abstract: Themed issue on shape-responsive fluorophores
From the themed collection: Shape-Responsive Fluorophores
Highlight

Long wavelength AIEgen of quinoline-malononitrile

In this Highlight, we summarize some recent advances in the area of red to near-infrared fluorescent AIE-active organic materials via tailoring the building block of quinoline-malononitrile (QM), and its application in bioimaging.

Graphical abstract: Long wavelength AIEgen of quinoline-malononitrile
From the themed collection: Shape-Responsive Fluorophores
Open Access Review Article

Recent advances in twisted intramolecular charge transfer (TICT) fluorescence and related phenomena in materials chemistry

Twisted intramolecular charge transfer (TICT) is an electron transfer process that occurs upon photoexcitation in molecules that usually consist of a donor and acceptor part linked by a single bond.

Graphical abstract: Recent advances in twisted intramolecular charge transfer (TICT) fluorescence and related phenomena in materials chemistry
Review Article

Subcellular behaviour evaluation of nanopharmaceuticals with aggregation-induced emission molecules

Aggregation-induced emission molecules based nanopharmaceuticals enable to not only deliver the therapeutic agents, but also decipher their innate intracellular or subcellular behaviours.

Graphical abstract: Subcellular behaviour evaluation of nanopharmaceuticals with aggregation-induced emission molecules
From the themed collection: Shape-Responsive Fluorophores
Review Article

Ratiometric mechanosensitive fluorescent dyes: design and applications

Dual-emission fluorescent dyes provide an internal calibration reference that enables quantification of a fluorescent signal. This review summarizes the rational design and application of such radiometric dyes.

Graphical abstract: Ratiometric mechanosensitive fluorescent dyes: design and applications
From the themed collection: Shape-Responsive Fluorophores
Review Article

Supramolecularly assisted modulations in chromophoric properties and their possible applications: an overview

Macrocyclic host assisted modulations in the fluorescence and acid–base properties of organic chromophoric dyes and their possible applications are reviewed comprehensively.

Graphical abstract: Supramolecularly assisted modulations in chromophoric properties and their possible applications: an overview
From the themed collection: Shape-Responsive Fluorophores
Review Article

Blue AIEgens: approaches to control the intramolecular conjugation and the optimized performance of OLED devices

This review summarizes the recent progress in the field of blue AIEgens, mainly focusing on design strategies to control the intramolecular conjugation effect and to realize blue emission.

Graphical abstract: Blue AIEgens: approaches to control the intramolecular conjugation and the optimized performance of OLED devices
Review Article

Stimuli and shape responsive ‘boron-containing’ luminescent organic materials

A review on the recent developments of boron based shape and stimuli sensitive functional luminescent materials is presented.

Graphical abstract: Stimuli and shape responsive ‘boron-containing’ luminescent organic materials
Communication

Light induced in situ post-modification of clay-chromophore hybrids for multiple white light emissions

In this study, soft clay chromophore hybrids were used to demonstrate a photo-modification strategy, in which one white light standard can be converted into another via in situ generation of a blue emitting chromophore.

Graphical abstract: Light induced in situ post-modification of clay-chromophore hybrids for multiple white light emissions
From the themed collection: Shape-Responsive Fluorophores
Communication

A fluorescent and halochromic indolizine switch

Proton transfer from a photoacid generator to a halochromic molecular switch within a polymer film permits the imprinting of fluorescent patterns under the influence of optical stimulations.

Graphical abstract: A fluorescent and halochromic indolizine switch
From the themed collection: Shape-Responsive Fluorophores
Open Access Paper

Docking-guided identification of protein hosts for GFP chromophore-like ligands

Fluorogenic chromophore–protein pairs were predicted by molecular docking and validated experimentally.

Graphical abstract: Docking-guided identification of protein hosts for GFP chromophore-like ligands
From the themed collection: Shape-Responsive Fluorophores
Paper

Temperature-dependent shape-responsive fluorescent nanospheres for image-guided drug delivery

Nanospheres work similar to Hoberman spheres that undergo significant temperature-induced shape changes revealing large pores (holes) through which drugs released.

Graphical abstract: Temperature-dependent shape-responsive fluorescent nanospheres for image-guided drug delivery
From the themed collection: Shape-Responsive Fluorophores
Paper

Fluorescence behavior of 5,10-disubstituted [5]helicene derivatives in solution and the effect of self-assembly on their radiative and non-radiative rate constants

Fluorescence behavior of 5,10-disubstituted [5]helicene derivatives is sensitive to the type of substituent and the motif of self-assembly in the solution phase.

Graphical abstract: Fluorescence behavior of 5,10-disubstituted [5]helicene derivatives in solution and the effect of self-assembly on their radiative and non-radiative rate constants
Paper

A fluorescent molecular rotor showing vapochromism, aggregation-induced emission, and environmental sensing in living cells

We present here a novel fluorescent molecular rotor which presents vapochromism, aggregation-induced emission, and environmental sensing in living cells.

Graphical abstract: A fluorescent molecular rotor showing vapochromism, aggregation-induced emission, and environmental sensing in living cells
From the themed collection: Shape-Responsive Fluorophores
Paper

Excimer emission based on the control of molecular structure and intermolecular interactions

The wavelength of excimer formation and efficiency of an OLED device were controlled through the change of the center position of the triple-core chromophore.

Graphical abstract: Excimer emission based on the control of molecular structure and intermolecular interactions
From the themed collection: Shape-Responsive Fluorophores
Paper

Restricted access to a conical intersection to explain aggregation induced emission in dimethyl tetraphenylsilole

Aggregation-induced emission of dimethyl tetraphenylsilole is due to restricted access to a conical intersection. The intersection allows for radiationless decay in solution but is not reachable in the aggregate phase.

Graphical abstract: Restricted access to a conical intersection to explain aggregation induced emission in dimethyl tetraphenylsilole
Paper

Dual emissive analogue of deoxyuridine as a sensitive hydration-reporting probe for discriminating mismatched from matched DNA and DNA/DNA from DNA/RNA duplexes

Herein, we report the incorporation in DNA of a tailored dual emissive probe with exquisite sensitivity to hydration.

Graphical abstract: Dual emissive analogue of deoxyuridine as a sensitive hydration-reporting probe for discriminating mismatched from matched DNA and DNA/DNA from DNA/RNA duplexes
From the themed collection: Shape-Responsive Fluorophores
Open Access Paper

Tuning the aggregation-induced enhanced emission behavior and self-assembly of phosphole-lipids

Herein, we report on the synthesis, self-assembly, as well as the photophysical properties of a novel series of P-benzylated phosphole-lipids.

Graphical abstract: Tuning the aggregation-induced enhanced emission behavior and self-assembly of phosphole-lipids
From the themed collection: Shape-Responsive Fluorophores
Paper

Effects of the benzoxazole group on green fluorescent protein chromophore crystal structure and solid state photophysics

Most of the conjugates exhibited aggregation-induced emission enhancement, probably involving a unusual type of excimer.

Graphical abstract: Effects of the benzoxazole group on green fluorescent protein chromophore crystal structure and solid state photophysics
Paper

Aggregation-induced emission enhancement and mechanofluorochromic properties of α-cyanostilbene functionalized tetraphenyl imidazole derivatives

Twisted tetraphenyl imidazole derivatives functionalized by α-cyanostilbene possess aggregation-induced emission enhancement and mechanochromic luminescence properties.

Graphical abstract: Aggregation-induced emission enhancement and mechanofluorochromic properties of α-cyanostilbene functionalized tetraphenyl imidazole derivatives
From the themed collection: Shape-Responsive Fluorophores
Open Access Paper

Polymorphism-dependent aggregation induced emission of a push–pull dye and its multi-stimuli responsive behavior

A push–pull dye with AIE polymorphism-dependent properties shows mechano-, thermo- and chrono-chromism associated with stimuli-induced surface structural defects.

Graphical abstract: Polymorphism-dependent aggregation induced emission of a push–pull dye and its multi-stimuli responsive behavior
From the themed collection: Shape-Responsive Fluorophores
Paper

Thermoresponsive AIE polymers with fine-tuned response temperature

A series of thermoresponsive aggregation-induced emission polymers with fine-tuned hydrophilicity are synthesized as fluorescent thermometers with tunable response temperature.

Graphical abstract: Thermoresponsive AIE polymers with fine-tuned response temperature
From the themed collection: Shape-Responsive Fluorophores
Paper

Confinement effect on the photophysics of ESIPT fluorophores

The photophysics of three benzothiazole derivatives that exhibit excited state intramolecular proton transfer (ESIPT) were investigated in a confined medium afforded by the water soluble supramolecular host octaacid (OA).

Graphical abstract: Confinement effect on the photophysics of ESIPT fluorophores
From the themed collection: Shape-Responsive Fluorophores
Paper

Size and morphology effects on the fluorescence properties of π-conjugated poly(p-phenylene) polyelectrolyte nanoparticles synthesized via polyion association

A facile method is developed to synthesize π-conjugated polymer nanoparticles of propoxy-sulfonated poly(p-phenylene) polyelectrolyte (PPP-SO).

Graphical abstract: Size and morphology effects on the fluorescence properties of π-conjugated poly(p-phenylene) polyelectrolyte nanoparticles synthesized via polyion association
From the themed collection: Shape-Responsive Fluorophores
Paper

Effect of solvent, pH and metal ions on the self-assembly process and optical properties of an A–π–D–π–A type triphenylamine carboxylic acid derivative

The effect of solvent, pH and metal ion on the morphology and optical properties of a carboxylic-acid derivative was researched.

Graphical abstract: Effect of solvent, pH and metal ions on the self-assembly process and optical properties of an A–π–D–π–A type triphenylamine carboxylic acid derivative
From the themed collection: Shape-Responsive Fluorophores
Paper

Push–pull dioxaborine as fluorescent molecular rotor: far-red fluorogenic probe for ligand–receptor interactions

Fluorescent solvatochromic dyes and molecular rotors have attracted considerable attention as fluorogenic probes because of background-free detection of biomolecules in live cells in no-wash conditions.

Graphical abstract: Push–pull dioxaborine as fluorescent molecular rotor: far-red fluorogenic probe for ligand–receptor interactions
From the themed collection: Shape-Responsive Fluorophores
Paper

Initial hydrogen-bonding dynamics of photoexcited coumarin in solution with femtosecond stimulated Raman spectroscopy

The ultrafast hydrogen bond breaking and reformation dynamics at the carbonyl site of a coumarin 102 dye molecule in ethanol is captured by femtosecond stimulated Raman spectroscopy (FSRS) on the femtosecond and picosecond timescales.

Graphical abstract: Initial hydrogen-bonding dynamics of photoexcited coumarin in solution with femtosecond stimulated Raman spectroscopy
From the themed collection: Shape-Responsive Fluorophores
Paper

Using membrane composition to fine-tune the pKa of an optical liposome pH sensor

Anionic phospholipids in liposomes can be used to fine-tune membrane-anchored dye pKa by up to 1 pH unit.

Graphical abstract: Using membrane composition to fine-tune the pKa of an optical liposome pH sensor
From the themed collection: Shape-Responsive Fluorophores
Open Access Paper

Mechanoresponsive liquid crystals exhibiting reversible luminescent color changes at ambient temperature

Oligothiophene-based liquid crystals having a wide luminescent color variation exhibit reversible luminescent color changes induced by mechanical shearing and subsequent aging at ambient temperature.

Graphical abstract: Mechanoresponsive liquid crystals exhibiting reversible luminescent color changes at ambient temperature
From the themed collection: Shape-Responsive Fluorophores
Paper

Crystallization induced enhanced emission in conformational polymorphs of a rotationally flexible molecule

The crystallization of weakly fluorescent 4-amino-2,2′-bipyridine (AMBPY) in solution phase under ambient conditions afforded three conformational polymorphs possessing enhanced emission.

Graphical abstract: Crystallization induced enhanced emission in conformational polymorphs of a rotationally flexible molecule
From the themed collection: Shape-Responsive Fluorophores
Paper

Photophysical properties of push–pull 8-aryl-deoxyguanosine probes within duplex and G-quadruplex structures

Acceptor aryl groups at the 8-position of 2′-deoxyguanosine (dG) generate visibly emissive 8aryldG probes, which provide viscosity-sensing applications within oligonucleotides.

Graphical abstract: Photophysical properties of push–pull 8-aryl-deoxyguanosine probes within duplex and G-quadruplex structures
From the themed collection: Shape-Responsive Fluorophores
Paper

An AIE and ESIPT based kinetically resolved fluorescent probe for biothiols

A new fluorescent probe based on AIE and ESIPT was developed. With the aid of different reactivity, a kinetically resolved method was successfully applied to distinguish different biothiols both in solution and cells.

Graphical abstract: An AIE and ESIPT based kinetically resolved fluorescent probe for biothiols
From the themed collection: Shape-Responsive Fluorophores
Paper

Triphenylamine-functionalized tetraphenylpyrazine: facile preparation and multifaceted functionalities

Triphenylamine-functionalized tetraphenylpyrazines were facilely prepared and their multi-functional properties were thoroughly investigated.

Graphical abstract: Triphenylamine-functionalized tetraphenylpyrazine: facile preparation and multifaceted functionalities
From the themed collection: Shape-Responsive Fluorophores
Paper

Multiresponsive luminescent dicyanodistyrylbenzenes and their photochemistry in solution and in bulk

Multiresponsive luminescence and photochemical activity (Z/E isomerization and/or photodimerization) in solution and in the liquid crystal phase are reported with dicyanodistyryl-based molecules.

Graphical abstract: Multiresponsive luminescent dicyanodistyrylbenzenes and their photochemistry in solution and in bulk
From the themed collection: Shape-Responsive Fluorophores
Open Access Paper

Tuning BODIPY molecular rotors into the red: sensitivity to viscosity vs. temperature

We demonstrate that red emitting BODIPY dyes structurally similar to ‘molecular rotors’ are sensitive to environmental temperature rather than viscosity.

Graphical abstract: Tuning BODIPY molecular rotors into the red: sensitivity to viscosity vs. temperature
From the themed collection: Shape-Responsive Fluorophores
Paper

The impact of electrostatic interactions on ultrafast charge transfer at Ag29 nanoclusters–fullerene and CdTe quantum dots–fullerene interfaces

We report how electrostatic interactions significantly impact charge transfer at CdTe QDs/fullerene interfaces.

Graphical abstract: The impact of electrostatic interactions on ultrafast charge transfer at Ag29 nanoclusters–fullerene and CdTe quantum dots–fullerene interfaces
From the themed collection: Shape-Responsive Fluorophores
Paper

Solution-processable, star-shaped bipolar tetraphenylethene derivatives for the fabrication of efficient nondoped OLEDs

Star-shaped tetraphenylethene derivatives containing electron-donor and acceptor groups are synthesized and utilized in solution-processed nondoped OLEDs.

Graphical abstract: Solution-processable, star-shaped bipolar tetraphenylethene derivatives for the fabrication of efficient nondoped OLEDs
From the themed collection: Shape-Responsive Fluorophores
Paper

Modulation of the fluorescence properties of diketopyrrolopyrroles via various electron-rich substituents

Electron-donating functionalities allow modulation of the emission properties of diketopyrrolopyrroles.

Graphical abstract: Modulation of the fluorescence properties of diketopyrrolopyrroles via various electron-rich substituents
From the themed collection: Shape-Responsive Fluorophores
Paper

Tetraaryl pyrenes: photophysical properties, computational studies, crystal structures, and application in OLEDs

Nine 1,3,6,8-tetraarylpyrenes were prepared and characterized for OLED-based blue-light emission.

Graphical abstract: Tetraaryl pyrenes: photophysical properties, computational studies, crystal structures, and application in OLEDs
From the themed collection: Shape-Responsive Fluorophores
Paper

Shape-selective, stoichiometric sensing of fatty acids with a mixed polydiacetylene liposome

A mixed polymerized liposome discriminates fatty acids depending on their overall shape and with a discrete binding stoichiometry.

Graphical abstract: Shape-selective, stoichiometric sensing of fatty acids with a mixed polydiacetylene liposome
From the themed collection: Shape-Responsive Fluorophores
Paper

Indene-1,3-dionemethylene-4H-pyran derivatives containing alkoxy chains of various lengths: aggregation-induced emission enhancement, mechanofluorochromic properties and solvent-induced emission changes

Indene-1,3-dionemethylene-4H-pyran derivatives exhibiting alkoxy-chain-length-dependent optical properties.

Graphical abstract: Indene-1,3-dionemethylene-4H-pyran derivatives containing alkoxy chains of various lengths: aggregation-induced emission enhancement, mechanofluorochromic properties and solvent-induced emission changes
From the themed collection: Shape-Responsive Fluorophores
Paper

β-Iminoenolate boron complex with terminal triphenylamine exhibiting polymorphism and mechanofluorochromism

Two types of crystals are gained from the β-iminoenolate boron complex, and the molecular packing mode can be memorized during mechanofluorochromic processes.

Graphical abstract: β-Iminoenolate boron complex with terminal triphenylamine exhibiting polymorphism and mechanofluorochromism
From the themed collection: Shape-Responsive Fluorophores
Paper

Preparation of Bodipy–ferrocene dyads and modulation of the singlet/triplet excited state of bodipy via electron transfer and triplet energy transfer

Bodipy–ferrocene dyads were prepared for reversible electrochemical switching of the singlet excited state (fluorescence), as well as the triplet excited states of Bodipy.

Graphical abstract: Preparation of Bodipy–ferrocene dyads and modulation of the singlet/triplet excited state of bodipy via electron transfer and triplet energy transfer
From the themed collection: Shape-Responsive Fluorophores
Paper

AIEgens for real-time naked-eye sensing of hydrazine in solution and on a paper substrate: structure-dependent signal output and selectivity

AIEgens for real-time naked-eye sensing of hydrazine in solution and on a paper substrate are reported with a structure-dependent signal output and selectivity.

Graphical abstract: AIEgens for real-time naked-eye sensing of hydrazine in solution and on a paper substrate: structure-dependent signal output and selectivity
From the themed collection: Shape-Responsive Fluorophores
Paper

A dual responsive “turn-on” fluorophore for orthogonal selective sensing of biological thiols and hydrogen peroxide

A dual responsive probe capable of generating two different responses upon reacting with thiols and H2O2 in a highly selective manner was developed.

Graphical abstract: A dual responsive “turn-on” fluorophore for orthogonal selective sensing of biological thiols and hydrogen peroxide
From the themed collection: Shape-Responsive Fluorophores
Open Access Correction

Correction: Tetraaryl pyrenes: photophysical properties, computational studies, crystal structures, and application in OLEDs

From the themed collection: Shape-Responsive Fluorophores
46 items

About this collection

Molecular fluorophores may be minimally or dramatically affected by their environments. When the effect is significant, the shape, intensity, and decay rate of the fluorescence can provide valuable information about the nature of that environment. Nevertheless, most fluorophores undergo modest responses upon changes in environment, and such changes are not always readily understood on the basis of ordinary environmental interactions. It is important to understand how the sensitivity of the photophysics and photochemistry of various chromophores and their fluorescence recovery can be manipulated to obtain new probes of wide utility in photophysics and fluorescent sensors.

Guest edited by Dr Kyril Solntsev (Georgia Institute of Technology, USA) and Professor Ben Zhong Tang (Hong Kong University of Science and Technology, Hong Kong), this themed issue covers all aspects of the recent exciting progress in shape-responsive fluorophores, and highlights remarkable contributions made by the leading scientists in this important research area, as well as the broad impacts of this novel class of fluorophores.

Spotlight

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