Fluorescent dialdehyde-BODIPY chitosan hydrogel and its highly sensing ability to Cu2+ ion

Xiong, Shuangyu; Sun, Wei; Chen, Rong; Yuan, Zhiqiang; Cheng, Xinjian

doi:10.1016/j.carbpol.2021.118590

Cited by 28 publications

(8 citation statements)

References 30 publications

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“…Thus, CFHs comprising BODIPY, cobaloxime, and polyurethane enable the detection of gaseous H 2 S. [102] Meanwhile, when BODIPY was introduced to the symmetrical thiophene aldehyde groups and grafted on chitosan, the formed CFHs enabled Cu 2+ detection, as Cu 2+ quenched the fluorescence of the modified BODIPY (Figure 11d). [103] Another major type of CFHs are those based on the ICT principle. The electron distribution changes within BODIPY are influenced by pH changes and cause a red/blue shift of fluorescence (ICT principle).…”

Section: Hydrogels Loaded With Compound Fluorophoresmentioning

confidence: 99%

Application of Optical Hydrogels in Environmental Sensing

Yang

Sarkar

Xie

et al. 2023

Energy & Environ Materials

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The ever‐increasing complexity of environmental pollutants urgently warrants the development of new detection technologies. Sensors based on the optical properties of hydrogels enabling fast and easy in situ detection are attracting increasing attention. In this paper, the data from 138 papers about different optical hydrogels (OHs) are extracted for statistical analysis. The detection performance and potential of various types of OHs in different environmental pollutant detection scenarios were evaluated and compared to those obtained using the standard detection method. Based on this analysis, the target recognition and sensing mechanisms of two main types of OHs are reviewed and discussed: photonic crystal hydrogels (PCHs) and fluorescent hydrogels (FHs). For PCHs, the environmental stimulus response, target receptors, inverse opal structures, and molecular imprinting techniques related to PCHs are reviewed and summarized. Furthermore, the different types of fluorophores (i.e., compound probes, biomacromolecules, quantum dots, and luminescent microbes) of FHs are discussed. Finally, the potential academic research directions to address the challenges of applying and developing OHs in environmental sensing are proposed, including the fusion of various OHs, introduction of the latest technologies in various fields to the construction of OHs, and development of multifunctional sensor arrays.

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Section: Hydrogels Loaded With Compound Fluorophoresmentioning

confidence: 99%

Application of Optical Hydrogels in Environmental Sensing

Yang

Sarkar

Xie

et al. 2023

Energy & Environ Materials

View full text Add to dashboard Cite

show abstract

“…Thus, CFHs comprising BODIPY, cobaloxime, and polyurethane enable the detection of gaseous H 2 S [102] . Meanwhile, when BODIPY was introduced to the symmetrical thiophene aldehyde groups and grafted on chitosan, the formed CFHs enabled Cu 2+ detection, as Cu 2+ quenched the fluorescence of the modified BODIPY [103] (Figure 9d ) . Notably, the electron distribution changes within BODIPY are influenced by pH changes and cause a red/blue shift of fluorescence (ICT principle).…”

Section: Hydrogels Loaded With Compound Fluorophoresmentioning

confidence: 99%

Application of optical hydrogels in environmental sensing

Yang

Sarkar

Xie

et al. 2023

Preprint

View full text Add to dashboard Cite

The ever-increasing complexity of environmental pollutants urgently warrants the development of new detection technologies. In this context, sensors based on the optical properties of hydrogels enabling fast and easy in situ detection are attracting increasing attention. Herein, the target recognition and sensing mechanisms of two main types of optical hydrogels (OHs) are reviewed and discussed: photonic crystal hydrogels (PCHs) and fluorescent hydrogels (FHs). For PCHs, the environmental stimulus response, target receptors, inverse opal structures, and molecular imprinting techniques related to PCHs are reviewed and summarized. Furthermore, the different types of fluorophores (i.e., compound probes, biomacromolecules, quantum dots, and luminescent microbes) of FHs are summarized. Finally, the data from 138 papers about different OHs are extracted for secondary statistical analysis. The detection performance and potential of various OH types in different environmental pollutant detection scenarios are evaluated, and compared them to those obtained using the standard detection method. Based on this analysis, some possible development directions are proposed, including the fusion of various OHs, introduction of more hydrogel technologies from the biomedical field to the environmental pollutant detection field, and development of multifunctional sensor arrays.

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“…2 Preparation route of a fluorescent chitosan hydrogel. 54 Fig. 3 Modified rhodamine chitosan material (CS-RB).…”

Section: Chitosan Derivative Fluorescent Probesmentioning

confidence: 99%

“…2. 54 The CBC probe exhibits good fluorescence behavior in both neutral and alkaline ranges, and the hydrogel can identify Cu 2+ at low concentrations in aqueous solution. The detection limit and quenching constant were 4.75 μM and 3.52 × 10 4 M −1 , respectively.…”

Section: Chitosan-based Fluorescent Probesmentioning

confidence: 99%