A meta-analysis and modeling study for green synthesized ZnO nanoparticles effect on UV-protection for cotton fabrics.

Despite enormous benefits of UV radiation, exposure to it stimulates skin and eye damages. In occupational health sciences, modification of cotton fabrics by biodegradable nanomaterials is a new approach to overcome this problem. So, the aim of this study is to investigate green synthesized ZnO nanoparticles effect on UV-protection for nano-cotton fabrics using meta-analysis, computational method and simulation. This study was conducted based on Cochrane systematic review guideline. Meta-analysis was provided by CMA Software. Regression Model was applied to describe the relationship between the size of nanoparticles and Ultraviolet Protection Factor (UPF). Also, Crystal Ball software was used for simulation. After screening, 15 studies were regarded as appropriate, until Jun 2023. Pearson's coefficient confirmed a good correlation between UPF and size of nanoparticles (p = 0.013). The results of meta-analysis showed that odd ratio (UPF) was 11.29 (confidence interval 95%) for treated cotton fabrics. Regression model for nanoparticles whose size ranges from 3.98 to 107 nm was predicted with UPF between 52.76 and 53.17 (Excellent protection), with a certainty of 78.015%. Estimations show that the nano-cotton fabrics have an excellent UPF value, and by optimizing the particle size in the synthesis process, the highest level of UPF can be achieved. [ABSTRACT FROM AUTHOR]