In Situ Electrospun Thermochromic Menthol-Loaded Fibrous Membranes for Monitoring Body Temperature Indicator DOI

Zhuoxian Mai,

Zhi-Hao Lin, Peng Song

et al.

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 7, 2024

This study aimed to develop a smart body temperature indicator membrane using poly(vinyl butyral) (PVB) nanofibers evaluate individuals with fever higher than 38 °C. Skin surface temperatures above °C were visibly monitored as the color of changed from blue white, facilitated by integration thermochromic microcapsules into polymer. The reversible change in was verified be rapid and perceivable during three-cycle tests. optimal polymeric spinning solution prepared mixing 12% PVB (w/w), 4% poly(vinylpyrrolidone) (PVP, w/w), 2% powder menthol (w/w). release rate fibers accelerated response wettability skin caused sweating at temperatures, providing cooling effect for patients fever. To address complexity inconvenience traditional electrospinning, portable handheld device used multifunctional via an situ electrospinning process. morphology properties as-spun characterized. In vitro vivo experiments demonstrated remarkable antibacterial effects against Escherichia coli Staphylococcus aureus excellent biocompatibility. Western blot experiments, immunofluorescence labeling assays, molecular docking algorithms confirmed anti-inflammatory comparing expression TRPM8 TNF-α. Overall, obtained nanofibrous membranes have potential future clinical treatments.

Language: Английский

Aerogel‐Functionalized Phase Change Materials toward Lightweight and Robust Thermal Management DOI

Ganlu Wang,

Ling Liu,

Xueyan Hu

et al.

Small Methods, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 24, 2025

Abstract With their low density and high porosity, aerogels are widely used as supporting frameworks for phase change materials (PCMs). However, the host–guest solid–liquid phase‐change systems often encounter difficulties in optimizing balance between mechanical properties thermal energy storage performance, intrinsic advantages of not being fully realized. Herein, an aerogel‐functionalization‐PCM strategy, a completely converse route compared to traditional aerogel‐filling‐PCM method, toward lightweight, flexible PCM robust management is developed. As proof concept, silica aerogel particles (SAPs) functional components added polyvinyl alcohol‐polyethylene glycol network produce composite PCMs. The addition SAP reduces PCM's latent heat by 25% but significantly decreases heating rate 190% enhances insulation 147%, achieving 28 °C temperature drop at 80 °C. This work provides fresh perspective on design thermally PCMs demonstrates feasibility enhancing protection under reduced conditions.

Language: Английский

Citations

2
Ultrafast Thermal Conduction of Phase Change Fiber Enabled by Sheath Confinement‐Induced Ordered Orientation of Hydroxylated BNNs DOI Open Access
Kang Yang, Chao Duan,

Ruoteng Ma

et al.

Small, Journal Year: 2025, Volume and Issue: unknown

Published: March 5, 2025

Phase change fibers (PCFs) are increasingly popular in thermal storage and release applications, such as temperature management. However, a simple but effective integration of conductive materials into PCFs to deliver ultrafast conduction remains big challenge. Herein, facile one-pot coaxial wet spinning strategy based on sheath-confinement-induced orientation arrangement hydroxylated boron nitride nanosheets (BNNs-OH) is proposed fabricate the high-performance PCFs. For core-sheath PCFs, cellulose nanofiber (CNF)-reinforced paraffin (CNF/PW) emulsions serve phase core, while dissolved well-dispersed BNNs-OH act sheath precursor. By increasing extrusion speed liquid contraction fiber gradually finalized induce alignment confinement effect. Consequently, highly oriented (f = 0.8) endow with high transition enthalpy (125.1 J g-1), excellent conductivity (10.15 W m-1K-1), rapid heat transfer rate (1.6 cm s-1); moreover, as-prepared show good tensile strength (11.21 MPa) leakage-proof (0.13%). The combined thermochromic dyes for functional fabrics or applied management phone, demonstrating dissipation.

Language: Английский

Citations

1
Enhanced Thermal Management of Mats and Yarns from Polystyrene Fibers Through Incorporation of Exfoliated Graphite DOI Creative Commons
Madhurima Das, Joanna Knapczyk‐Korczak, Ahmadreza Moradi

et al.

Materials Advances, Journal Year: 2025, Volume and Issue: unknown

Published: Jan. 1, 2025

The incorporation of thermally conductive exfoliated graphite into polystyrene fibers significantly enhances their thermal conductivity. This modification in the yarn structure optimizes management by enabling effective heat transfer.

Language: Английский

Citations

0
Advancements in ZnO-based photocatalysts for effective rhodamine dye removal from water DOI Creative Commons
Madhurima Das, Avishek Ghatak, Preetam Guha Ray

et al.

Sustainable materials and technologies, Journal Year: 2024, Volume and Issue: 42, P. e01138 - e01138

Published: Oct. 9, 2024

Language: Английский

Citations

1
In Situ Electrospun Thermochromic Menthol-Loaded Fibrous Membranes for Monitoring Body Temperature Indicator DOI

Zhuoxian Mai,

Zhi-Hao Lin, Peng Song

et al.

ACS Applied Polymer Materials, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 7, 2024

This study aimed to develop a smart body temperature indicator membrane using poly(vinyl butyral) (PVB) nanofibers evaluate individuals with fever higher than 38 °C. Skin surface temperatures above °C were visibly monitored as the color of changed from blue white, facilitated by integration thermochromic microcapsules into polymer. The reversible change in was verified be rapid and perceivable during three-cycle tests. optimal polymeric spinning solution prepared mixing 12% PVB (w/w), 4% poly(vinylpyrrolidone) (PVP, w/w), 2% powder menthol (w/w). release rate fibers accelerated response wettability skin caused sweating at temperatures, providing cooling effect for patients fever. To address complexity inconvenience traditional electrospinning, portable handheld device used multifunctional via an situ electrospinning process. morphology properties as-spun characterized. In vitro vivo experiments demonstrated remarkable antibacterial effects against Escherichia coli Staphylococcus aureus excellent biocompatibility. Western blot experiments, immunofluorescence labeling assays, molecular docking algorithms confirmed anti-inflammatory comparing expression TRPM8 TNF-α. Overall, obtained nanofibrous membranes have potential future clinical treatments.

Language: Английский

Citations

0