Dual-channel sensing of CO2: Reversible solution-gel transition and gelation-induced fluorescence enhancement

Zhang, Xin; Mu, Huifang; Li, Haimiao; Zhang, Yu; An, Meng; Zhang, Xuhong; Yoon, Juyoung; Yu, Hongwei

doi:10.1016/j.snb.2017.09.091

Cited by 31 publications

(8 citation statements)

References 76 publications

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“…Thus, Figure shows the chemical structures of typical AIE‐active LMWGs based on Schiff bases and ESIPT systems. More specifically, typical AIE‐active LMWGs based on Schiff bases are 97 , 98 and 99 , [ 104 ] 100 , [ 105 ] 101 , [ 106 ] 102 , [ 107 ] 103 , [ 108 ] 104 , [ 109 ] 105 , [ 110 ] 106 , [ 111 ] 107 , [ 112 ] 108 , [ 113 ] 109 , [ 114 ] 110 , [ 115 ] 111 , [ 116 ] 112 , [ 117 ] 113 , [ 118 ] and 114 . [ 119 ] Moreover, some aromatic thioether‐based systems have also recently been reported to exhibit the AIE effect.…”

Section: Fabricationsmentioning

confidence: 99%

Aggregation‐Induced Emission‐Active Gels: Fabrications, Functions, and Applications

Xie

et al. 2021

Advanced Materials

125

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Chromophores that exhibit aggregation‐induced emission (i.e., aggregation‐induced emission luminogens [AIEgens]) emit intense fluorescence in their aggregated states, but show negligible emission as discrete molecular species in solution due to the changes in restriction and freedom of intramolecular motions. As solvent‐swollen quasi‐solids with both a compact phase and a free space, gels enable manipulation of intramolecular motions. Thus, AIE‐active gels have attracted significant interest owing to their various distinctive properties and promising application potential. Herein, a comprehensive overview of AIE‐active gels is provided. The fabrication strategies employed are detailed, and the applications of AIEgens are summarized. In addition, the gel functions arising from the AIE moieties are revealed, along with their structure–property relationships. Furthermore, the applications of AIE‐active gels in diverse areas are illustrated. Finally, ongoing challenges and potential means to address them are discussed, along with future perspectives on AIE‐active gels, with the overall aim of inspiring research on novel materials and ideas.

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Section: Fabricationsmentioning

confidence: 99%

Aggregation‐Induced Emission‐Active Gels: Fabrications, Functions, and Applications

Xie

et al. 2021

Advanced Materials

125

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“…, F – ) in the solution. The deprotonated amine group can then react with CO 2 , thus activating a change in the emission. , …”

Section: Introductionmentioning

confidence: 99%

An Ultrasensitive Fluorescent Paper-Based CO₂ Sensor

Wang

Vagin

Rieger

et al. 2020

ACS Appl. Mater. Interfaces

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We demonstrate a versatile and easily fabricated paper-based CO2 sensor. The sensor consists of a specially designed fluorescent color-shift chromophore infused into standard filter paper. The emission color of the resulting fluorescent paper changes upon exposure to CO2 due to the formation of carbonic acid, which underlies the sensing mechanism. By using a ratiometric method, the undesirable effects of photobleaching can be eliminated, leading to a stable and repeatable sensor performance. These multiuse sensors have a response time on the order of 1 min and feature low detection limits for a paper-based CO2 gas sensor, suggesting possible low-cost applications in smart buildings or other facilities in which CO2 levels are required to be continuously monitored.

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“…They are shown to be important applications in the field of sensors, optics, energy storage, crystal engineering, and drug-controlled release. − Gelators are often found serendipitously, and structural modification on the obtained gelator is an efficient and simple way to prepare novel gelators. − The molecular structural variation plays an important role for tuning functions of materials, especially gels. , It is found that subtle structural changes profoundly influence the organization and properties of gel systems. There have been tremendous efforts in gelator structure modifications at different positions of the molecular structure such as π, hydrogen bonding, hydrophobic/hydrophilic groups, and ions. − For example, Žinić et al have reported the structure-gelation relationship by preparing a set of isomers with variable lengths of the terminal and carboxylic acid methylene chains; Ajayaghosh et al have demonstrated the OPV-Ph to OPV-Py structural changes, which led to a new multi stimuli-responsive π-gelator; Cao and co-workers have shown the number of middle benzene units on the gelation and AIE properties . However, the resulting gelators usually have similar gelation abilities or gelation properties in comparison with that of the original gelator.…”

Section: Introductionmentioning

confidence: 99%

Structural Tunability on Naphthalimide-Based Dendrimer Gelators via Glaser Coupling Interaction with Tailored Gelation Solvent Polarity and Stimuli-Responsive Properties

Guo

et al. 2021

Langmuir

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To date, most of the low-molecular-weight gels are found serendipitously, and modification on known gelator structures via organic synthesis is an efficient methodology to prepare gel series. However, a simple, direct, and rational modification method for a known gelator is still a challenge. Herein, we employ Glaser coupling reaction to synthesize a novel dendrimer gelator BisDEC with the (ALS2)2 structure, starting from terminal alkyne-based gelator DEC with the ALS2 structure. This structural change results in gels with distinct gelation solvents, mechanical properties, and stimuli-responsive abilities. The gelation abilities of DEC and BisDEC in nonpolar and polar solvents, respectively, have been examined and discussed by several experiments and Hansen constants. It is also shown that the BisDEC gel system shows intriguing self-healing, self-supporting, and grinding chromism properties.

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Dual-channel sensing of CO2: Reversible solution-gel transition and gelation-induced fluorescence enhancement

Cited by 31 publications

References 76 publications

Aggregation‐Induced Emission‐Active Gels: Fabrications, Functions, and Applications

Aggregation‐Induced Emission‐Active Gels: Fabrications, Functions, and Applications

An Ultrasensitive Fluorescent Paper-Based CO₂ Sensor

Structural Tunability on Naphthalimide-Based Dendrimer Gelators via Glaser Coupling Interaction with Tailored Gelation Solvent Polarity and Stimuli-Responsive Properties

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Dual-channel sensing of CO2: Reversible solution-gel transition and gelation-induced fluorescence enhancement

Cited by 31 publications

References 76 publications

Aggregation‐Induced Emission‐Active Gels: Fabrications, Functions, and Applications

Aggregation‐Induced Emission‐Active Gels: Fabrications, Functions, and Applications

An Ultrasensitive Fluorescent Paper-Based CO2 Sensor

Structural Tunability on Naphthalimide-Based Dendrimer Gelators via Glaser Coupling Interaction with Tailored Gelation Solvent Polarity and Stimuli-Responsive Properties

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Product

Resources

About

An Ultrasensitive Fluorescent Paper-Based CO₂ Sensor