Opto-electrical dielectrics and conductivity behavior of vinyl polymers reinforced with chitosan@graphene oxide nanomaterials for optoelectronic and biological activity

IF 2.8 3区物理与天体物理 Q2 PHYSICS, MULTIDISCIPLINARY The European Physical Journal Plus Pub Date : 2025-02-01 DOI:10.1140/epjp/s13360-025-06006-8

Sarah Sabah Aljelawy, Ehssan Al-Bermany, Ali Razaq Abdulridha

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Abstract

Polymer composites are an interesting project for optical devices and medical applications. The influence of modified graphene oxide (GO) nanosheets with nano-chitosan (NCS) nanomaterials on two vinyl polymers was investigated. Polyvinyl pyrrolidone (PVP), polyvinyl alcohol (PVA), and polyacrylic acid (PAA) reinforced with nanomaterials to fabricated PVA-PAA/GO@NCS and PVP-PAA/GO@NCS composites. Strong interfacial interaction exhibited by Fourier-transform infrared spectroscopy. X-ray diffraction showed a semi-crystalline structure. A fine dispersion of nanomaterials was exhibited by image scanning electron microscopy. Optical and transmission electron microscopy revealed the PVA composite’s core–shell formulation, whereas the PVA composite and shrimp shell behavior of PVP composites. The dielectric constant results reduced from 18 to 10.36 for PVA composites and 10.4 to 9.3 for PVP composites. For the dielectric loss, the results enhanced from 15.50 to 1.79 and 2 to 1.4, respectively. The real and imaginary optical dielectric constants improved significantly compared with blended polymers, and composites with PVP presented better results than composites with PVA. In the PVA, the electrical conductivity of composites was enhanced compared to that of the PVP group. Interestingly, PVA nanocomposites revealed a better cytotoxic impact of up to 80% instead of 56% of PVP composites of anti-breast cancer (MTTassa). These interesting findings presented interesting materials for optoelectronic and biological applications.

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来源期刊

The European Physical Journal Plus PHYSICS, MULTIDISCIPLINARY-

CiteScore

5.40

自引率

8.80%

发文量

1150

审稿时长

4-8 weeks

期刊介绍： The aims of this peer-reviewed online journal are to distribute and archive all relevant material required to document, assess, validate and reconstruct in detail the body of knowledge in the physical and related sciences. The scope of EPJ Plus encompasses a broad landscape of fields and disciplines in the physical and related sciences - such as covered by the topical EPJ journals and with the explicit addition of geophysics, astrophysics, general relativity and cosmology, mathematical and quantum physics, classical and fluid mechanics, accelerator and medical physics, as well as physics techniques applied to any other topics, including energy, environment and cultural heritage.