Scientific Reports· 2026Q1
Nano curcumin as a multifunctional additive in (PVP/SA) blends: structural, optical, and antibacterial insights
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- Q1SCImago
- 2026year
Short summary
Incorporating nano curcumin into PVP/SA blends reduces blend amorphousity, narrows band gaps, and imparts antibacterial properties against four common bacterial strains.
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Key points
- Nano curcumin addition decreases amorphousity in PVP/SA blends, confirmed by XRD.
- FTIR spectroscopy shows interaction between nano curcumin and the PVP/SA polymer matrix.
- Optical band gaps of the blends are reduced with increasing nano curcumin content.
- SEM and TEM confirm uniform distribution of nano curcumin within the blend films.
- PVP/SA blends with nano curcumin display antimicrobial activity against Gram-negative and Gram-positive bacteria.
AI-generated from the title and abstract; the full text is not read.
Abstract
Abstract Nano curcumin was incorporated into Polyvinyl pyrrolidone/ Sodium alginate (PVP/SA) blend using casting method. The decrease in amorphousity of PVP/SA polymer blend with increasing nano curcumin content was confirmed by XRD results. FTIR illustrated the coordination or interaction between the (PVP/SA) blend and nano curcumin. The effect of nano curcumin addition on the optical properties achieved by Ultraviolet/visible analysis, the band gaps were reduced by addition nano curcumin amounts. The formation of charge transfer complexes between the conjugated structure of curcumin and the polymer chains leads to enhanced electron delocalization. Scanning electron microscope used to record morphological properties. TEM images confirmed the uniformly distribution of nanocurcumin on the film surface. The antimicrobial effect and activity index of polymeric blend with nano curcumin were achieved against two-gram negative and two-gram positive bacteria.
The authors' abstract, as published at the source. Scientific Reports, 2026 · DOI ↗
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Field: Polymers and Plastics
Polymers and PlasticsMaterials Science