Polymerization boosting cascade energy transfer based on opened glucopyranosyl β-cyclodextrin

Yu, Jie; Wang, Hui; Dai, Xiujuan J.; Niu, Jie; Liu, Yu

doi:10.1039/d2cc06908c

Cited by 8 publications

(7 citation statements)

References 25 publications

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“…In order to effectively convert light into a substantial amount of heat energy, it is vital to have strong NIR absorption. − The GSH-responsive enhancement of absorption at 808 nm makes the transformation of HA@V 2 O 5 NPs to HA@VO x NPs possible to be applied for GSH-activated PTT. To prove this expectation, the GSH-activated photothermal property of HA@V 2 O 5 NPs was primarily assessed.…”

Section: Resultsmentioning

confidence: 99%

Glutathione-Activated In Situ Transformation of Nanosized Vanadium Oxides for Postoperative Precision Tumor Theranostics

Chen

Wang

Qiu

et al. 2023

ACS Sustainable Chem. Eng.

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It is highly desirable to precisely observe the realtime location of residual tumor tissues after surgery without interference and further realize postoperative tumor-specific therapy. Herein, glutathione (GSH)-activated in situ transformation of nanosized vanadium (V) oxides (V 2 O 5 ) to mixed valence vanadium oxides (VO x ) was carried out to realize postoperative precision tumor theranostics. Especially, hyaluronic acid-hybridized V 2 O 5 nanoparticles (HA@V 2 O 5 NPs) were in-situtransformed to HA-hybridized VO x NPs via the reduction of GSH overexpressed in residual tumor. The transformation of V 2 O 5 to VO x could not only generate near-infrared absorption but also endow VO x with the ability to catalyze hydrogen peroxide to produce hydroxyl radicals. By combining receptor-mediated targeting (RMT) toward tumor cells of HA and GSH-activated in situ transformation, HA@V 2 O 5 NPs could be applied to precisely determine the location of residual tumor tissues in real time via photoacoustic (PA) observation without interference of inflammation after surgery and further realize postoperative tumor-specific photothermal/chemodynamic eradication of them. Therefore, the present work opens the way to utilize the combination strategy of RMT and GSH-activated in situ transformation of inorganic metal oxides to meet the need of postoperative precision tumor theranostics.

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Section: Resultsmentioning

confidence: 99%

Glutathione-Activated In Situ Transformation of Nanosized Vanadium Oxides for Postoperative Precision Tumor Theranostics

Chen

Wang

Qiu

et al. 2023

ACS Sustainable Chem. Eng.

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“…Furthermore, the fluorescence lifetime of SC4A/TPA was decreased from 1.40 to 0.62 ns in the presence of energy acceptor DE‐C (Figure S18, Supporting Information), indicating the energy transfer from TPA to the photo‐switch DE‐C in the co‐assembly may go through the Förster mechanism. [ 26 ] On the other hand, the maximum absorption peak of DE‐C is located at 625 nm, thus the closed form of DE can be photo‐isomerized to DE‐O under visible light irradiation (>600 nm), avoiding the excitation of TPA. As shown in Figure 4b, the NIR luminescence of the multivalent assembly was recovered after being irradiated by visible light (>600 nm) for 200 s, which may ascribe to the DE‐C being isomerized to DE‐O, resulting in the energy could not transfer from excited TPA to DE‐O in this system.…”

Section: Resultsmentioning

confidence: 99%

Supramolecular Two‐Photon Switch for Near‐Infrared (NIR) Cell Imaging

Yu,

Niu,

Wang

et al. 2023

Advanced Optical Materials

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A light controllable two‐photon near‐infrared (NIR) optical probe is conveniently constructed by multivalent supramolecular co‐assembly of amphiphilic sulfonatocalix[4]arene (SC4A), tricationic triphenylamine (TPA), and diarylethene derivative (DE). The obtained results indicate that the formed SC4A/TPA nanoparticle displays assemble‐confined behaviors and enhances the two‐photon excited NIR emission. Benefiting from the reversible ring‐opened and closed behaviors of the DE under 365 and > 600 nm light irradiation, the dicationic DE in the assembly could act as an energy acceptor after 365 nm light irradiation, then the co‐assembly of SC4A/TPA/DE could achieve a NIR fluorescence ON and OFF switch and is successfully applied in HeLa cell imaging, providing a convenient approach to supramolecular two‐photon switch for cell imaging.

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“…Stimuli-responsive functional materials [1][2][3][4] have received increasing attention due to their indispensable roles in rapid development of science, technology, and artificial intelligence in modern society. However, the dysfunction or loss of function caused by environmental anomalies (e.g., overheating, supercooling, DOI: 10.1002/adom.202301447 over-wetting, over-drying, acid/alkali) greatly hinders their ability to better meet human needs and practical applications.…”

Section: Introductionmentioning

confidence: 99%

“Co‐Stabilization, Fine‐Tuning” Strategy for Highly Stable Coloring of Stimuli‐Responsive Materials and their Hydrochromic Applications

Gao,

Wang,

Qin

et al. 2023

Advanced Optical Materials

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It is of great significance, but extremely challenging, to endow stimulus‐response materials with both excellent dynamic responsiveness and high coloring stability. Herein, a strategy of “co‐stabilization, fine‐tuning” is proposed to address this conundrum by manipulating multiple dynamically competing supramolecular interactions and conformational fine‐tuning linked coloring. With this idea, a new supramolecular hydrochromic system is constructed and the as‐prepared dye‐based hydrochromic materials (DHMs) have a highly stable water‐induced coloration in a wide pH range, abnormally high temperature, and high salt concentration. Meanwhile, it possesses the best comprehensive performance of hydrochromism (i.e., high optical contrast, multicolor, excellent repeatability). These new DHMs can not only meet the general needs, but also have some unique applications in helping humans adapt to “harsh environments”. The verified “co‐stabilization, fine‐tuning” strategy promises to bring unlimited ideas and implications for functional materials to cope with abnormal environments.

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Polymerization boosting cascade energy transfer based on opened glucopyranosyl β-cyclodextrin

Abstract: An injectable polysaccharide supramolecular hydrogel was successfully fabricated from opened D-glucopyranosyl β-cyclodextrin with four aldehyde groups (ACD) cross-linked with biomacromolecule chitosan (CS), which was not only benefit to the clustering-triggered...

Cited by 8 publications

References 25 publications

Glutathione-Activated In Situ Transformation of Nanosized Vanadium Oxides for Postoperative Precision Tumor Theranostics

Glutathione-Activated In Situ Transformation of Nanosized Vanadium Oxides for Postoperative Precision Tumor Theranostics

Supramolecular Two‐Photon Switch for Near‐Infrared (NIR) Cell Imaging

“Co‐Stabilization, Fine‐Tuning” Strategy for Highly Stable Coloring of Stimuli‐Responsive Materials and their Hydrochromic Applications

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