Tough ion-electron conductive hydrogels with multi-crosslinked network for strain sensors

Polymer, Год журнала: 2025, Номер unknown, С. 128060 - 128060

Опубликована: Янв. 1, 2025

Язык: Английский

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Electrochemical environmental sensors based on La-doped zeolitic imidazolate framework-67 functionalized with L-cysteine for simultaneous detection of Cd2+ and Hg2+

Applied Surface Science, Год журнала: 2025, Номер unknown, С. 162549 - 162549

Опубликована: Янв. 1, 2025

Язык: Английский

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Design and Construct Cyclic Carbonate Functionalized Chitosan‐Based Hydrogel Enabling Photodecarboxylase Immobilization with Enhanced Stability and Reusability

Advanced Sustainable Systems, Год журнала: 2025, Номер unknown

Опубликована: Янв. 26, 2025

Abstract Fatty acid photodecarboxylase (FAP) plays a crucial role in the green production of biofuel and other valuable biochemicals. However, reusability immobilized FAP has been limited due to inadequate durability. Here, porous, translucent chitosan hydrogel sphere carrier functionalized with cyclic carbonate group enhance is presented. Based on arrangement basic amino residues surface FAP, bis(cyclic carbonate) containing flexible chain from CO 2 designed synthesized. This compound used modify porous hydrogels obtained via template‐etching process. then covalently within framework through reaction remaining groups, as evidenced by quartz crystal microbalance analysis. The modified carrier, PH3‐BC‐II, significantly improves activity achieving maximum conversion 70.0%, enzyme loading 125.3 mg g −1 (dry carrier). Furthermore, PH3‐BC‐II retains >50% its initial after eight consecutive cycles (total runtime 24 h) at high fatty substrate concentrations. study provides an effective strategy for constructing stable (photo)enzymes sustainable materials.

Язык: Английский

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A bioinspired microbial taste chip with artificial intelligence-enabled high selectivity and ultra-short response time

Biosensors and Bioelectronics, Год журнала: 2025, Номер 277, С. 117264 - 117264

Опубликована: Фев. 18, 2025

Язык: Английский

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High-Sensitive Hydrogel Optofluidic Microcavities for Heavy Metal Ion Detection

ACS Sensors, Год журнала: 2025, Номер unknown

Опубликована: Фев. 25, 2025

Hydrogels have emerged as promising sensors for detecting heavy metal ions in fluids and been extensively developed. However, monitoring of multiple target analytes Chinese herbs remains challenging due to subtle chemical signals the complex composition extracted solutions. To address these challenges, we developed a hydrogel optofluidic sensor amplify analyte through strong light-matter interactions within hydrogel. This sensing platform integrates film encapsulated whispering-gallery-mode (WGM) microcavity detection ions, such Pb2+ Hg2+. The 3D cross-linked hydrophilic polymer network facilitates ion penetration from solutions, inducing distinct WGM resonance shifts. red shift spectral wavelength serves parameter quantify content ions. By modification with aptamers, achieve high sensitivity selectivity. Finally, platform's performance was demonstrated using varying concentrations, highlighting its practical applicability real-world scenarios. proposed exhibit method development functional healthcare applications.

Язык: Английский

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Flower-like imide covalent organic framework as an electrochemical platform catcher for simultaneous sensitive detection of trace Pb(II) and Cd(II)

Microchemical Journal, Год журнала: 2023, Номер 193, С. 109165 - 109165

Опубликована: Авг. 2, 2023

Язык: Английский

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A portable intelligent hydrogel platform for multicolor visual detection of HAase

Microchimica Acta, Год журнала: 2024, Номер 191(2)

Опубликована: Янв. 17, 2024

Язык: Английский

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Antidehydration and Stable Mechanical Properties during the Phase Transition of the PNIPAM-Based Hydrogel for Body-Temperature-Monitoring Sensors

ACS Applied Materials & Interfaces, Год журнала: 2024, Номер 16(45), С. 62776 - 62787

Опубликована: Ноя. 1, 2024

Poly(N-isopropylacrylamide) (PNIPAM) enhances the reversibility and responsiveness of wearable temperature-sensitive devices. However, an open question is whether how hydrogel design can prevent adhesive performance loss caused by phase-transition-induced dehydration unstable mechanical properties between devices human skin reduce interfacial failure. Herein, a gelatin-mesh scaffold-based (NAGP-Gel) constructed to inhibit volume change, leading stable properties, superior adhesiveness, thermal sensing sensitivity during phase transition. NAGP-Gel polymer chains–water interaction weakens degree aggregation chains–chains, improving antidehydration under 45 °C conditions that are higher than lower critical solution temperature (LCST; i.e., ∼32 °C). The mesh scaffold greatly restricts chain movement maintains performance. In 60 environment, maximum water retention ratio only 3.58% 97.3%, respectively. Additionally, serves as sensor, producing thermal–electrical signal within LCST range. It also be assembled into electronic device enabling transmission information recognition sign language via Morse code. This work broadens application PNIPAM in constructing intelligent hydrogels opens door exploring emerging for temperature-monitoring applications.

Язык: Английский

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Engineering a fluorescent probe for the visual and wearable detection of N2H4 in foods, environment samples and biological imaging

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy, Год журнала: 2024, Номер 327, С. 125365 - 125365

Опубликована: Ноя. 3, 2024

Язык: Английский

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Chemometrically driven multiplexed metal ion detection using a triple emitting quantum dots–based nanoprobe

Analytical and Bioanalytical Chemistry, Год журнала: 2024, Номер unknown

Опубликована: Ноя. 26, 2024

Abstract Metal ion pollution poses a global concern due to its significant risks both human health and environmental well-being. The toxicity of these ions can increase when they coexist, interacting with each other harmful substances, even at low concentrations. Therefore, an accurate, rapid, cost-effective methodology is urgently needed for the simultaneous quantification multiple metal ions. This study presents new approach multiplexed detection various (Ag + , Cu 2+ Hg Al 3+ Pb Fe Zn Ni Cd Ca ) using triple-emission nanoprobe comprising carbon dots distinctly capped CdTe quantum dots, specifically green-emitting glutathione -quantum red-emitting 3-mercaptopropionic acid-quantum dots. method achieved high accuracy by analysing first- second-order photoluminescence data distinct advanced chemometric tools. R 2 P values partial least squares unfolded square models exceeding 0.9 several concentrations (mmol L −1 were obtained. Additionally, PL yielded significantly better results than first-order data, attributed behaviour over time. Interestingly, it was also noted first time contribution molar ratio between on models’ accuracy. novel provides highly accurate efficient way detect simultaneously, paving improved monitoring assessment. utilization proposed contributes understanding complex interactions in mixed systems, allowing earlier mitigation contamination threats. Graphical

Язык: Английский

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