Coffee ground-derived carbon dots reinforced zein/PVDF electrospun nanofiber membranes with antioxidant and photodynamic antibacterial activities.

Fei Yao, Kaixin Niu, Yishuang Dong, Chan Jin, Zihao Li, Changhong Liu, Fusheng Chen

Abstract read

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Article in Food chemistry: X, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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7 authors.

Fei YaoSchool of Food and Biological Engineering, Engineering Research Center of Bio-Process, Ministry of Education, Hefei University of Technology, Hefei, Anhui 230601, PR China.

Kaixin NiuCollege of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan 450001, PR China.

Yishuang DongCollege of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan 450001, PR China.

Chan JinCollege of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan 450001, PR China.

Zihao LiCollege of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan 450001, PR China.

Changhong LiuSchool of Food and Biological Engineering, Engineering Research Center of Bio-Process, Ministry of Education, Hefei University of Technology, Hefei, Anhui 230601, PR China.

Fusheng ChenCollege of Food Science and Technology, Henan University of Technology, Zhengzhou, Henan 450001, PR China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Coffee grounds were utilized as a sustainable biomass precursor to synthesize carbon dots (CG-CDs), providing a value-added route for agro-industrial waste reutilization. The as-prepared CG-CDs were incorporated into a zein/polyvinylidene fluoride (PVDF) matrix, and multifunctional composite nanofiber membranes were fabricated by electrospinning. The influences of CG-CDs incorporation on membrane morphology, thermal behavior, mechanical performance, surface wettability, antioxidant activity, and photodynamic antibacterial properties were systematically evaluated. The results indicated that the incorporation of CG-CDs increased fiber diameter while maintaining a continuous fibrous morphology. In addition, the composite membranes exhibited improved thermal stability and increased hydrophilicity, while mechanical testing revealed a clear strength-flexibility trade-off, characterized by decreased tensile strength and increased elongation at break. More importantly, CG-CDs significantly strengthened the radical-scavenging activity of the membranes and enhanced the light-responsive antibacterial activity against

Indexed as

Antioxidant activityCoffee ground-derived carbon dotsElectrospinningPhotodynamic antibacterial activityReactive oxygen speciesZein/PVDF nanofibers

Identifiers

PMID42741166

DOI10.1016/j.fochx.2026.104414

PMCPMC13572756

What Socratic holds

Textmetadata

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.