Fabricating color-tunable luminescent materials based on pyrene derivatives via host-guest interactions

Wang, Meng-Qi; Wang, Qian; Chen, Meng; Qu, Da‐Hui

doi:10.1016/j.dyepig.2021.109822

Cited by 5 publications

(4 citation statements)

References 67 publications

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“…The compound 4-(pyren-1-yl)pyridine (PPD) was simply synthesized by Suzuki-Miyaura cross-coupling of a pyridine unit on pyrene, followed by reacting with 1-(chloromethyl)-4-vinylbenzene to obtain the pyridinium moiety. [43] This cationic group not only provided water solubility, but also endowed the whole molecule with a typical TICT feature. This feature was confirmed by time-resolved emission measurements (Figure S4, Supporting Information).…”

Section: Resultsmentioning

confidence: 99%

A Time‐Dependent Fluorescent Hydrogel for “Time‐Lock” Information Encryption

Wang

et al. 2022

Adv Funct Materials

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Information encryption has become increasingly important in recent years; however, information encryption materials, especially those encrypting on a time scale, are still in fancy. Herein, a “time‐lock” information encryption material is developed based on a time‐dependent fluorescent hydrogel. The fluorescence color of this hydrogel can be regulated between green and yellow, with distinctive changes in intensity, on a time scale by controlling the concentration of urea/urease and HCl. By taking advantage of this feature, “time‐locked” information can be encoded. Such information self‐erases with time, and moreover, fake or even opposing information is generated during this process. The correct information can only be recognized at a specified time, i.e., using a “time‐key” to decrypt the information. This time‐dependent feature endows the material with a higher level of security and provides new insight for information encryption.

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Section: Resultsmentioning

confidence: 99%

A Time‐Dependent Fluorescent Hydrogel for “Time‐Lock” Information Encryption

Wang

et al. 2022

Adv Funct Materials

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“…[21][22][23][24] Thus, the molecular organization of the planar π-conjugated aromatic molecules has been engineered by making use of supramolecular interactions and often resulted in obtaining enhanced/tunable solid-state fluorescence. 25,26 In recent years, utilizing halogen bonding as a non-covalent interaction for the generation of supramolecular functional materials has gained increased attention. 27,28 The halogen atom substitution with a fluorophore not only provided opportunity to control the assembly via supramolecular interactions but also allowed the emission properties to be modulated by the heavy atom effect.…”

Section: Introductionmentioning

confidence: 99%

“…21–24 Thus, the molecular organization of the planar π-conjugated aromatic molecules has been engineered by making use of supramolecular interactions and often resulted in obtaining enhanced/tunable solid-state fluorescence. 25,26…”

Section: Introductionmentioning

confidence: 99%

Halogen atom substitution effect on the carbazole fluorescence properties and supramolecular interactions in the solid-state

Ravi,

Karthikeyan,

Pannipara

et al. 2024

CrystEngComm

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“… 6 In a related study, CB[8] was used to assemble coumarin dyes into either H- or J-aggregates, depending on the substitution pattern on the coumarin scaffold. 7 Similarly, the emission of other fluorescent dyes can be fine-tuned by encapsulation 8 or co-encapsulation with other molecules. 9 Furthermore, confinement can reverse the thermodynamic stability of two forms of isomerizable dyes, as was demonstrated for phenolphthalein, 2 spiropyran, 10 and a donor–acceptor Stenhouse adduct, 11 all within Pd–based coordination cages.…”

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confidence: 99%