Tough and Fast‐Responding Fe3+‐Coordinated Poly (Acrylic Acid ‐N‐Isopropyl Acrylamide) Shape Memory Hydrogels DOI Open Access
Tao Du, Yujiao Zhao, Tao Cui

и другие.

Advanced Materials Technologies, Год журнала: 2024, Номер unknown

Опубликована: Дек. 18, 2024

Abstract Hydrogels with programmable shape memory hold great promise for applications in soft robots, smart medical devices, etc., but the preparation of tough and fast‐responding hydrogels remains challenging. In this work, Poly (acrylic acid ‐N‐isopropyl acrylamide) (3:1)‐Fe 3+ (P(AA‐NIPAM)(3:1)‐Fe ) are obtained by monomer copolymerization ionic coordination, which exhibited mechanical properties a maximum tensile strength 2.48 ± 0.08 MPa elongation 338.5 19.6%. The hydrogel also demonstrated good effect, curled into spiral recovering to 71.1% 5.9% 30 s under swelling effect water, convoluted structure 95% 4 s. prepared based on method will provide an important reference value development higher performance hydrogels.

Язык: Английский

The Reversible and Background-Free Hydrogel-Sensing Platform for Dual-Mode Detection of Acetone in Exhaled Breath DOI
Wei Guo,

Kangran Li,

Hao Yu

и другие.

Analytical Chemistry, Год журнала: 2025, Номер unknown

Опубликована: Фев. 13, 2025

The acetone present in exhaled breath is a promising indicator for diagnosing human health. fluorescent hydrogel sensor-based portable sensing platform highly effective tool the on-site detection of acetone. However, existing sensors are often limited by their irreversibility and autofluorescence. This study constructed an upconversion nanoprobe with reversibility dual-mode simply combining nanoparticles (UCNPs), hydroxylamine sulfate, thymol blue (TB). was further embedded into network to construct background-free nanosensor utilized long-wavelength-excited UCNPs avoid self-luminescence interference. Hydroxylamine as specific recognition unit, reacted induce protonation TB, resulting increase absorbance at 548 nm decrease luminescence 540 nm, enabling visual colorimetric precise luminescent Moreover, could be restored its initial state through deprotonation thereby achieving reversible detection. Additionally, 3D printing technology real-time monitoring. proposed this paves new way developing high sensitivity

Язык: Английский

Процитировано

1
High tensile and antifreeze polyacrylamide hydrogel strain sensor suitable for human motion monitoring under low-temperature conditions DOI
Bin Wang,

Yuerui Li,

Chunxia Zhao

и другие.

Sensors and Actuators A Physical, Год журнала: 2025, Номер unknown, С. 116467 - 116467

Опубликована: Март 1, 2025

Язык: Английский

Процитировано

1
Bioinspired self-sensing hydrogel actuators: From mechanisms to applications DOI
Jiaqi Yang, Zhen‐Chao Dong, He Liu

и другие.

Chemical Engineering Journal, Год журнала: 2025, Номер 512, С. 162743 - 162743

Опубликована: Апрель 16, 2025

Язык: Английский

Процитировано

0
Tough and Fast‐Responding Fe3+‐Coordinated Poly (Acrylic Acid ‐N‐Isopropyl Acrylamide) Shape Memory Hydrogels DOI Open Access
Tao Du, Yujiao Zhao, Tao Cui

и другие.

Advanced Materials Technologies, Год журнала: 2024, Номер unknown

Опубликована: Дек. 18, 2024

Abstract Hydrogels with programmable shape memory hold great promise for applications in soft robots, smart medical devices, etc., but the preparation of tough and fast‐responding hydrogels remains challenging. In this work, Poly (acrylic acid ‐N‐isopropyl acrylamide) (3:1)‐Fe 3+ (P(AA‐NIPAM)(3:1)‐Fe ) are obtained by monomer copolymerization ionic coordination, which exhibited mechanical properties a maximum tensile strength 2.48 ± 0.08 MPa elongation 338.5 19.6%. The hydrogel also demonstrated good effect, curled into spiral recovering to 71.1% 5.9% 30 s under swelling effect water, convoluted structure 95% 4 s. prepared based on method will provide an important reference value development higher performance hydrogels.

Язык: Английский

Процитировано

1