In Situ Monitoring of Mechanofluorescence in Polymeric Nanofibers DOI Creative Commons

Valentina Antonia Dini,

Derek J. Kiebala, Damiano Genovese

et al.

Macromolecular Rapid Communications, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 23, 2024

Mechanofluorescent polymers represent a promising class of materials exhibiting fluorescence changes in response to mechanical stimuli. One approach fabricating these involves incorporating aggregachromic dyes, whose emission properties are governed by the intermolecular distance, which can, turn, be readily altered microstructural surrounding polymer matrix during deformation. In this study, mechanofluorescent additive featuring excimer-forming oligo(p-phenylene vinylene) dyes (tOPV) is incorporated into electrospun polyurethane fibers, producing mats fibers with diameters ranging from 300 700 nm. The influence concentration and fiber orientation on under tensile deformation investigated. situ spectroscopy microscopy imaging reveal strain-dependent change color orange yellow or green, more pronounced prealigned fibers. Stresses experienced nanofibers elongation mapped real-time. data that forces initially concentrate aligned parallel applied strain, only later redistribute as other once they also align. These findings advance understanding force transfer within fibrous expected facilitate development self-reporting for applications load-bearing devices, wearable technologies, mechanochromic textiles.

Language: Английский

Designing High-performance Fruit Packaging: Gelatin Films Enriched with Marine Seaweed Polysaccharides and Carbon Dots DOI

Cuirong Luan,

Zhiyu Li,

Jianan Lin

et al.

Food Hydrocolloids, Journal Year: 2025, Volume and Issue: 163, P. 111056 - 111056

Published: Jan. 8, 2025

Language: Английский

Citations

3
Development and characterization of polylactic acid/starch biocomposites – From melt blending to preliminary life cycle assessment DOI Creative Commons
Hossein Baniasadi,

Laura Äkräs,

Zahra Madani

et al.

International Journal of Biological Macromolecules, Journal Year: 2024, Volume and Issue: 279, P. 135173 - 135173

Published: Aug. 28, 2024

This study presents a comprehensive analysis encompassing melt blending, characterization, life cycle assessment (LCA), and 3D printing of range polylactic acid (PLA)/starch biocomposites, with starch content varying from 0 to 50 wt%. To enhance compatibility between the particles PLA matrix, we utilized solvent-free method graft N-octadecyl isocyanate (ODI) molecules onto surface particles, resulting in ODI-g-starch, which yielded several improved properties. Notably, toughness elongation at break by approximately 170 % 300 %, respectively. Moreover, crystallinity increased 11.6 plain 30.1 suggesting that uniform dispersion ODI-g-starch acted as nucleating sites for crystallization chains. Additionally, viscosity decreased significantly introduction indicating their plasticizing effect, thereby enhancing processability ease fabrication biocomposite. Crucially, our LCA revealed significant reduction carbon footprint these up 18 63 compared selected fossil-based plastics, respectively, upon incorporation ODI-g-starch. In summary, research introduces newly developed PLA/starch biocomposites sustainable eco-friendly alternative commercially available specific plastics.

Language: Английский

Citations

5
Strong, tough, and UV-resistant polylactic acid composites by incorporating doped carbon dots DOI

Ling Sun,

Song Liu,

WU Guo-qi

et al.

International Journal of Biological Macromolecules, Journal Year: 2025, Volume and Issue: unknown, P. 142416 - 142416

Published: March 1, 2025

Language: Английский

Citations

0
Physical and Mechanical Properties of Fused Deposition Modelling PLA/Carbon Dot Nanocomposites DOI
Alberto Jorge Baeza Campuzano,

Rafael Barbosa Rezende,

N. Cifuentes

et al.

Materials Today Communications, Journal Year: 2024, Volume and Issue: 40, P. 110025 - 110025

Published: Aug. 1, 2024

Language: Английский

Citations

1
Thermal conversion of Achillea maritima biomass into dual-functional carbon quantum dots for antioxidant activity and methylene blue removal DOI
Erdi Can Aytar, Alper Durmaz, İbrahim Mizan Kahyaoğlu

et al.

Biomass Conversion and Biorefinery, Journal Year: 2024, Volume and Issue: unknown

Published: Oct. 28, 2024

Language: Английский

Citations

1
In Situ Monitoring of Mechanofluorescence in Polymeric Nanofibers DOI Creative Commons

Valentina Antonia Dini,

Derek J. Kiebala, Damiano Genovese

et al.

Macromolecular Rapid Communications, Journal Year: 2024, Volume and Issue: unknown

Published: Dec. 23, 2024

Mechanofluorescent polymers represent a promising class of materials exhibiting fluorescence changes in response to mechanical stimuli. One approach fabricating these involves incorporating aggregachromic dyes, whose emission properties are governed by the intermolecular distance, which can, turn, be readily altered microstructural surrounding polymer matrix during deformation. In this study, mechanofluorescent additive featuring excimer-forming oligo(p-phenylene vinylene) dyes (tOPV) is incorporated into electrospun polyurethane fibers, producing mats fibers with diameters ranging from 300 700 nm. The influence concentration and fiber orientation on under tensile deformation investigated. situ spectroscopy microscopy imaging reveal strain-dependent change color orange yellow or green, more pronounced prealigned fibers. Stresses experienced nanofibers elongation mapped real-time. data that forces initially concentrate aligned parallel applied strain, only later redistribute as other once they also align. These findings advance understanding force transfer within fibrous expected facilitate development self-reporting for applications load-bearing devices, wearable technologies, mechanochromic textiles.

Language: Английский

Citations

0