Fabrication of Flexible Thin Films from Sodium Alginate Biopolymer Composites for Smart Wearable Sensors Targeting Respiratory Health DOI
Nurdiana Nordin, Mun Fai Loke, Azzuliani Supangat

et al.

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

Published: April 7, 2025

Modern wearable sensors for health monitoring are becoming increasingly popular due to their versatility. This study investigates the effects of Co2+ ions in flexible alginate-based composite films with doped cobalt and poly(3,4-ethylene-dioxythiophene):polystyrenesulfonate (PEDOT:PSS) respiratory monitoring. Contrary expectations, Co2+-doped Na-Alg/PEDOT:PSS/Glycerol 3b nanocomposite showed lower LED intensity (168 ± 75 au) conductivity (5.04 × 10-5 S/m). The addition negatively affected electrical performance hindered charge mobility structural integrity. In contrast, Na-Alg/PEDOT:PSS/glycerol 2b film achieved higher (236 25 maximum (6.61 S/m), which can be attributed plasticizing effect glycerol that improves homogeneity transport. also shows excellent wearability on skin, pressure sensitivity, ability monitor respiration.

Language: Английский

Photonic Nanomaterials for Wearable Health Solutions DOI Creative Commons
Taewoong Park, Jung Woo Leem, Young L. Kim

et al.

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

Published: Feb. 3, 2025

Abstract This review underscores the transformative potential of photonic nanomaterials in wearable health technologies, driven by increasing demands for personalized monitoring. Their unique optical and physical properties enable rapid, precise, sensitive real‐time monitoring, outperforming conventional electrical‐based sensors. Integrated into ultra‐thin, flexible, stretchable formats, these materials enhance compatibility with human body, enabling prolonged wear, improved efficiency, reduced power consumption. A comprehensive exploration is provided integration devices, addressing material selection, light‐matter interaction principles, device assembly strategies. The highlights critical elements such as form factors, sensing modalities, data communication, representative examples skin patches contact lenses. These devices precise monitoring management biomarkers diseases or biological responses. Furthermore, advancements approaches have paved way continuum care systems combining multifunctional sensors therapeutic drug delivery mechanisms. To overcome existing barriers, this outlines strategies design, engineering, system integration, machine learning to inspire innovation accelerate adoption next‐generation health, showcasing their versatility digital applications.

Language: Английский

Citations

2
Spider Silk‐Inspired Conductive Hydrogels for Enhanced Toughness and Environmental Resilience via Dense Hierarchical Structuring DOI Creative Commons
Seokkyoon Hong, Jiwon Lee, Taewoong Park

et al.

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 4, 2025

Abstract Conductive hydrogels, known for their biocompatibility and responsiveness to external stimuli, hold promise biomedical applications like wearable sensors, soft robotics, implantable electronics. However, broader use is often constrained by limited toughness environmental resilience, particularly under mechanical stress or extreme conditions. Inspired the hierarchical structures of natural materials spider silk, a strategy developed enhance both tolerance in conductive hydrogels. By leveraging multiscale dynamics including pores, crystallization, intermolecular interactions, dense structure created that significantly improves toughness, reaching ≈90 MJ m⁻ 3 . This hydrogel withstands temperatures from −150 70 °C, pressure 12 psi, one‐month storage ambient conditions, while maintaining lightweight profile 0.25 g cm⁻ Additionally, its tunable rheological properties allow high‐resolution printing desired shapes down 220 µm, capable supporting loads exceeding 164 kg 2 study offers versatile framework designing durable various applications.

Language: Английский

Citations

0
Global Regulatory Perspectives on Sensor-Enabled and Biomaterial-Integrated Medical Devices: A Focus on India, Canada, and Australia DOI

Sahil Jamil Mulla,

Mital Patel

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

Published: April 1, 2025

Language: Английский

Citations

0
Fabrication of Flexible Thin Films from Sodium Alginate Biopolymer Composites for Smart Wearable Sensors Targeting Respiratory Health DOI
Nurdiana Nordin, Mun Fai Loke, Azzuliani Supangat

et al.

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

Published: April 7, 2025

Modern wearable sensors for health monitoring are becoming increasingly popular due to their versatility. This study investigates the effects of Co2+ ions in flexible alginate-based composite films with doped cobalt and poly(3,4-ethylene-dioxythiophene):polystyrenesulfonate (PEDOT:PSS) respiratory monitoring. Contrary expectations, Co2+-doped Na-Alg/PEDOT:PSS/Glycerol 3b nanocomposite showed lower LED intensity (168 ± 75 au) conductivity (5.04 × 10-5 S/m). The addition negatively affected electrical performance hindered charge mobility structural integrity. In contrast, Na-Alg/PEDOT:PSS/glycerol 2b film achieved higher (236 25 maximum (6.61 S/m), which can be attributed plasticizing effect glycerol that improves homogeneity transport. also shows excellent wearability on skin, pressure sensitivity, ability monitor respiration.

Language: Английский

Citations

0