International Journal of Research and Review Vol. 10; Issue: 12; December 2023 Website: www.ijrrjournal.com Research Paper E-ISSN: 2349-9788; P-ISSN: 2454-2237 International Journal of Research and Review (ijrrjournal.com) 29 Volume 10; Issue: 12; December 2023 Evaluating the Volume Ratio Effect on Absorption Time of Polyvinyl Alcohol-Sodium Alginate Based Fiber Membranes as a Wound Dressing Aqilatul Umma 1 , Ngurah Ayu Ketut Umiati 1 , Vincensius Gunawan Slamet K 1 , Muchammad Azam 1 , Isnaen Gunadi 1 1 Department of Physics, Diponegoro University, Semarang, Indonesia. Corresponding Author: Ngurah Ayu Ketut Umiati DOI: https://doi.org/10.52403/ijrr.20231205 ABSTRACT This research was observed absorption of the membrane PVA/SA fiber as wound dressing. The electrospinning method is used to make fiber membranes. This method with a volume ratio composition of Polyvinyl Alcohol (PVA) - sodium alginate (SA) (PVA/ SA) of 9 :1 (v/v), 8:2 (v/v), and 7:3 (v/v). The PVA/SA membrane was characterized with absorption characterization-water absorption test, morphology and fiber diameter. Absorption characterization-water absorption test results that the fastest absorption time occurred on the PVA/SA fiber membrane with a ratio of 7:3 (v/v). From the SEM results, it is known that the morphology of the PVA/SA membrane shows a fiber size with a uniform diameter. The fiber diameter decreases as it increases SA volume fraction. Fibers with a small diameter will have a large surface area and absorb liquid more quickly. Keywords: electrospinning, wound dressing, absorption characterization-water absorption test, size fiber INTRODUCTION Electrospinning has been widely used to form fibers by utilizing electric field tension [1] . The electrospinning method is considered more effective in the fiber manufacturing process. This method makes it easier to process and control materials and structures, produces fibers down to the nanoscale, and the resulting morphology is more uniform. In addition, the electrospinning method is able to produce nanofiber membranes with good mechanical properties, high porosity above 90%, and a large surface area [2] . This membrane-shaped fiber has great potential for use in various applications, including as a wound dressing. An ideal wound dressing must have a number of good characteristics such as keeping the area around the wound moist, effectively absorbing excess fluid and gas exchange, and reducing the occurrence of inflammatory processes in the wound. [3] (Liu et al., 2018). According to Ghomi et al (2019), one of the characteristics of a wound dressing that can help in healing wounds is the ability of the cushion to absorb wound exudate [4] . Meanwhile, dressings made from nanofiber membranes have a large surface area and high porosity so they can increase absorption efficiency compared to ordinary wound dressings. PVA (Polyvinyl Alcohol) is a polymer that is non-toxic, easy to use, soluble in water, biocompatible and biodegradable. This polymer has biodegradable properties which are widely used in the medical world. This material has the characteristics: odorless, translucent, and white in the form of small details. This material is often found in tablets as a membrane or protective film [5] . PVA polymer has a simple structure and unique properties such as adhesion,