Carbohydrate Polymers, Journal Year: 2025, Volume and Issue: 355, P. 123349 - 123349
Published: Feb. 4, 2025
Language: Английский
Advanced Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Jan. 8, 2025
Abstract Hydrogels have received great attention due to their molecular designability and wide application range. However, they are prone freeze at low temperatures the existence of mass water molecules, which can damage flexibility transparency, greatly limiting use in cold environments. Although adding cryoprotectants reduce freezing point hydrogels, it may also deteriorate mechanical properties face risk cryoprotectant leakage. Herein, microphase‐separated structures hydrogels regulated confine molecules sub‐6 nm nanochannels increase proportion bound water, endowing with intrinsic anti‐freezing properties, high strength, good stretchability, remarkable fracture energy, puncture resistance. Even after being kept liquid nitrogen for 1000 h, hydrogel still maintains transparency. The exhibit excellent low‐temperature shape memory intelligent optical waveguide properties. Additionally, be assembled into strain pressure sensors flexible sensing both room temperatures. intrinsically offers broad prospects electronic applications.
Language: Английский
Citations
7
Chemical Engineering Journal, Journal Year: 2024, Volume and Issue: 484, P. 149631 - 149631
Published: Feb. 13, 2024
Language: Английский
Citations
16
Carbohydrate Polymers, Journal Year: 2024, Volume and Issue: 342, P. 122406 - 122406
Published: June 15, 2024
Language: Английский
Citations
15
Bioengineering, Journal Year: 2024, Volume and Issue: 11(4), P. 358 - 358
Published: April 6, 2024
In recent years, the proliferation of wearable healthcare devices has marked a revolutionary shift in personal health monitoring and management paradigm. These devices, ranging from fitness trackers to advanced biosensors, have not only made more accessible, but also transformed way individuals engage with their data. By continuously signs, physical-based biochemical-based such as heart rate blood glucose levels, technology offers insights into human health, enabling proactive rather than reactive approach healthcare. This towards personalized empowers knowledge tools make informed decisions about lifestyle medical care, potentially leading earlier detection issues tailored treatment plans. review presents fabrication methods flexible applications care. The potential challenges future prospectives are discussed.
Language: Английский
Citations
12
Materials Science and Engineering R Reports, Journal Year: 2025, Volume and Issue: 163, P. 100923 - 100923
Published: Jan. 8, 2025
Language: Английский
Citations
1
Chemical Engineering Journal, Journal Year: 2025, Volume and Issue: unknown, P. 159608 - 159608
Published: Jan. 1, 2025
Language: Английский
Citations
1
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: Feb. 19, 2025
Abstract Conductive hydrogels with high water content, excellent adhesion, and mechanical flexibility have garnered significant attention for flexible wearable electronic applications. Despite advancements, achieving robust electrical properties under extreme environmental conditions remains a key challenge. In this study, cost‐effective, lignin‐tannin nanosphere graphene‐doped hydrogel (LTGH) synthesized by dispersing graphene within the matrix via self‐assembled sodium lignosulfonate tannic acid nanospheres is presented. The LTGH exhibits exceptional conductivity (28 S m −1 ), ultra‐high sensitivity (maximum gauge factor ≈350), an ultra‐low detection limit (<0.5%). Additionally, it demonstrates outstanding stretchability (>1800%), strong adhesion (>50 kPa), UV resistance, antibacterial properties. By incorporating ethylene glycol, maintains reliable performance across wide temperature range (−80 to 50 °C). Furthermore, successfully integrated into convolutional neural network‐based sign language recognition system, compact lightweight design accuracy, rapid responsiveness, cost efficiency. This work highlights superior sensing capabilities of conductive hydrogels, underscoring their potential in all‐weather technologies.
Language: Английский
Citations
1
ACS Sensors, Journal Year: 2025, Volume and Issue: unknown
Published: March 3, 2025
Hydrogels with a combination of mechanical flexibility and good electrical conductivity hold significant potential for various applications. Nonetheless, it is inevitable that water-based conductive hydrogels lose their elasticity at extremely low temperatures, severely limiting utilization in ultralow temperature environments, such as those Arctic/Antarctic exploration. In this study, we developed hydrogel based on double network cross-linking strategy incorporated silk fibroin (SF) poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) within lithium bromide (LiBr) solution, which shows exceptional antifreezing (-108 °C freezing point) excellent (16.33 S m-1). The obtained SF/PEDOT:PSS/LiBr (SPL) stable reliable response to wide range deformations (compression: 0.5-60%; tensile: 1.0-100%), short response/recovery time approximately 70 ms. More importantly, the displays well-maintained conductivity, robust properties, dependable sensing capabilities, even under temperatures -80 °C. For proof concept, demonstrated applications SPL detecting body movements, monitoring climate conditions, ensuring information security environments. results indicate promising candidate fabricating flexible sensors, particularly well-suited use challenging scenarios.
Language: Английский
Citations
1
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: March 26, 2025
Abstract Zwitterionic hydrogels have attracted intensive attentions for their exceptional hydration and anti‐fouling properties, while the exploration rational structural designs to achieve multi‐function superior anti‐freezing capability remains an ongoing mission. Herein, a new multi‐functional zwitterionic monomer (ACHPES) is designed developed from which novel are fabricated. The pyridinium‐sulfonate motif endows hydrogel with discoloration in both visible light fluorescence response pH stimulus, enabling unique multi‐channel information encryption highly sensitive Cu 2+ detection threshold of 0.64 ppm. design carbamate group fulfils high bonding capacity water, leading capability. As such, exhibit extremely low water freezing point −47.3 °C breaking elongation ≈500% at −20 °C. outstanding enables sensors electrolytes excellent operational performance temperatures. This innovative strategy offers avenue functionalization application icy temperature.
Language: Английский
Citations
1
Advanced Functional Materials, Journal Year: 2025, Volume and Issue: unknown
Published: March 27, 2025
Abstract Traditional hydrogels tend to freeze and lose performance at low temperatures, limiting their applications. Additionally, need exhibit hysteresis, excellent cycling stability, self‐adhesion ensure high‐quality signal acquisition in complex environments. To address this challenge, study designed a dual‐network gel glycerol (Gly)/H 2 O solvent system. Due the combination of chemical physical crosslinking (hydrogen bonding electrostatic interactions), resulting exhibits skin‐adaptive modulus, high anti‐freezing ability, body temperature‐induced adhesion, electrical performance, making it suitable for wearable sensors temperatures. Based on gel, single‐electrode triboelectric nanogenerator (gel‐TENG) is developed, achieving efficient conversion mechanical energy into energy. Further applied smart insole, successfully enabled real‐time visualization plantar pressure distribution skiing motion recognition. Using random forest machine learning algorithm, system accurately classified 11 basic motions, classification accuracy 97.1%. This advances flexible self‐powered systems, supporting intelligent materials research extreme
Language: Английский
Citations
1