Chemically triggered life control of “smart” hydrogels through click and declick reactions

Feng, Xiqi; Du, Meiqing; Wei, Hongbei; Ruan, Xiaoxiao; Fu, Tao; Zhang, Jie; Sun, Xiaolong

doi:10.1007/s11705-022-2149-z

Cited by 3 publications

(2 citation statements)

References 32 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…28,29 On this basis, we employed CA-SCH 3 , an indanonalkene molecule containing a bis-vinylogous thioester group, as an amine receptor for the fluorescence detection of volatile amines via aminethiol scrambling (Scheme 1B). [30][31][32] As such, the luminescent precursor CA-SCH 3 was turned on in the presence of ammonia in both solution and solid states to generate the luminophore CA-NH 2 , exhibiting a strong green emission (Scheme 1B). In addition, multiple volatile amines can be detected using a paper-based probe loaded with CA-SCH 3 , and further used to detect amine vapor in rotting fish.…”

Section: Introductionmentioning

confidence: 99%

Fluorometric detection of volatile amines using an indanonalkene platform

Zhang

Cao

et al. 2023

Org. Chem. Front.

Self Cite

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Fluorometric detection of volatile amines using an indanonalkene platform

Zhang

Cao

et al. 2023

Org. Chem. Front.

Self Cite

View full text Add to dashboard Cite

show abstract

“…Flexible polymeric materials with exceptional mechanical properties hold immense potential for diverse applications in aerospace, bioengineering, wearable sensing, and beyond. − However, achieving an ideal balance between strength and toughness remains a challenge. , Strengthening polymeric materials typically restricts polymer chain mobility, consequently compromising toughness. , In triboelectric wearable sensing, meticulously tailoring the strength-toughness interplay in polymeric triboelectric materials is crucial for adapting to varying forces, ensuring high compatibility with users, and accurately capturing user motion changes. − Therefore, overcoming this strength-toughness dilemma to achieve customizable mechanical properties in polymeric triboelectric materials is of paramount importance.…”

mentioning

confidence: 99%

High Strength and Toughness Polymeric Triboelectric Materials Enabled by Dense Crystal-Domain Cross-Linking

Cai,

Meng,

Zhang

et al. 2024

Nano Lett.

View full text Add to dashboard Cite

Lightweight, easily processed, and durable polymeric materials play a crucial role in wearable sensor devices. However, achieving simultaneously high strength and toughness remains a challenge. This study addresses this by utilizing an ion-specific effect to control crystalline domains, enabling the fabrication of a polymeric triboelectric material with tunable mechanical properties. The dense crystal-domain cross-linking enhances energy dissipation, resulting in a material boasting both high tensile strength (58.0 MPa) and toughness (198.8 MJ m −3 ), alongside a remarkable 416.7% fracture elongation and 545.0 MPa modulus. Leveraging these properties, the material is successfully integrated into wearable self-powered devices, enabling real-time feedback on human joint movement. This work presents a valuable strategy for overcoming the strength-toughness trade-off in polymeric materials, paving the way for their enhanced applicability and broader use in diverse sensing applications.

show abstract

Amino-yne Reaction for the Synthesis of Degradable Hydrogels: Study of the Cleavage of β-Aminoacrylate Cross-Links

Bescós-Ramo,

del Barrio,

Romero

et al. 2024

Macromolecules

View full text Add to dashboard Cite

This work addresses a study of PEG-derived hydrogels based on β-aminoacrylate cross-links and obtained by amino-yne click chemistry, using a β-aminoacrylate-based model molecule as reference. The pH-triggered cleavage of the βaminoacrylate bonds was monitored confirming not only the release of the conjugated amine but also the formation of a mixture of chemical species that depends on the acidity of the medium. Moreover, overall hydrogel degradation rates were able to be adjusted by modifying pH, temperature, polymer concentration, or the amine selected as linker of PEG chains. In particular, the labile nature of the β-aminoacrylate bond was confirmed even under physiological conditions (pH 7.4, 37 °C), leading to long-term material degradation. The release and recovery of the conjugated amine after the cleavage of the β-aminoacrylate bonds was demonstrated at both acidic and physiological pH, mimicking the results acquired through model molecule studies.

show abstract

Chemically triggered life control of “smart” hydrogels through click and declick reactions

Cited by 3 publications

References 32 publications

Fluorometric detection of volatile amines using an indanonalkene platform

Fluorometric detection of volatile amines using an indanonalkene platform

High Strength and Toughness Polymeric Triboelectric Materials Enabled by Dense Crystal-Domain Cross-Linking

Amino-yne Reaction for the Synthesis of Degradable Hydrogels: Study of the Cleavage of β-Aminoacrylate Cross-Links

Contact Info

Product

Resources

About