The article "Natural and Synthetic Polymers for Biomedical and Environmental Applications" by Galina Satchanska, Slavena Davidova, and Petar D. Petrov reviews the versatile use of natural and synthetic polymers in biomedical and environmental fields. Natural polymers, derived from organic sources like microorganisms, algae, plants, and animals, are widely used in drug delivery, tissue engineering, wound healing, and regenerative medicine due to their biocompatibility and biodegradability. Synthetic polymers, such as poly(lactic acid) and poly(vinyl alcohol), are also studied for their biocompatibility and biodegradability in controlled drug release systems, nano-carriers, and gene delivery systems. The review highlights recent advancements in polymer chemistry, including the development of polymers with specific biomedical functions like antiviral, anticancer, and antimicrobial activities. It discusses the advantages and limitations of natural and synthetic polymers, emphasizing their applications in various sectors. In the biomedical field, natural polymers like chitosan and hyaluronic acid are used for wound healing, drug delivery, and tissue engineering. Synthetic polymers are used for controlled drug release, nano-carriers, and gene delivery. The article also covers the use of natural polymers in environmental applications, such as food packaging, nano fertilizers, and bioplastics. The methods of isolation and physicochemical characterization of natural polymers are discussed, including chemical processes, enzymatic and bacterial fermentations, and various analytical techniques like SEM, XRD, and FTIR spectroscopy. The article provides a comprehensive overview of the current state and future prospects of natural and synthetic polymers in both biomedical and environmental applications.The article "Natural and Synthetic Polymers for Biomedical and Environmental Applications" by Galina Satchanska, Slavena Davidova, and Petar D. Petrov reviews the versatile use of natural and synthetic polymers in biomedical and environmental fields. Natural polymers, derived from organic sources like microorganisms, algae, plants, and animals, are widely used in drug delivery, tissue engineering, wound healing, and regenerative medicine due to their biocompatibility and biodegradability. Synthetic polymers, such as poly(lactic acid) and poly(vinyl alcohol), are also studied for their biocompatibility and biodegradability in controlled drug release systems, nano-carriers, and gene delivery systems. The review highlights recent advancements in polymer chemistry, including the development of polymers with specific biomedical functions like antiviral, anticancer, and antimicrobial activities. It discusses the advantages and limitations of natural and synthetic polymers, emphasizing their applications in various sectors. In the biomedical field, natural polymers like chitosan and hyaluronic acid are used for wound healing, drug delivery, and tissue engineering. Synthetic polymers are used for controlled drug release, nano-carriers, and gene delivery. The article also covers the use of natural polymers in environmental applications, such as food packaging, nano fertilizers, and bioplastics. The methods of isolation and physicochemical characterization of natural polymers are discussed, including chemical processes, enzymatic and bacterial fermentations, and various analytical techniques like SEM, XRD, and FTIR spectroscopy. The article provides a comprehensive overview of the current state and future prospects of natural and synthetic polymers in both biomedical and environmental applications.