Viruses and bacteria have posed a significant threat in various parts of the planet at various times. However, in 2020, the entire world was affected at the same time in such a way that it changed the very foundation of how we live, work, and interact with one another. Never before in history has the entire human race been so vulnerable at the same moment. The most economical preventive measures for most people all over the world during this period were sanitizers and face masks. Many different types of face masks have been fabricated keeping various factors like their antimicrobial effectiveness, reusability, eco-friendly method of manufacturing, cost-effectiveness and most importantly biodegradability. This paper gives an overview of those materials which are used in face masks which could be synthesized easily and affordably. The future perspective of the masks is also briefly discussed keeping the smart and sensor based devices on the rise, providing information for researchers looking for ways to synthesise face masks that would satisfy the needs of the circumstance.
Wound dressing is one of the main external effectors during the healing process of wounds. Wound healing process recruits three different phases: inflammation, proliferation, and maturation. The main characteristics of the ideal wound dressing material is: control the moisture around wound, enable great transmission of gases, eliminate excess exudates, protect wound from infections and microorganisms, decrease surface necrosis of wound and have mechanical protection. There are currently many types of wound dressing biodegradable materials available in the market. Inspite of the wide selection, there is no universally superior dressing, which prompts healthcare providers to choose materials that are most suitable to each particular case. Modern dressings have evolved to encompass an expansive array of biodegradable films and foams, hydrofibers, hydrogels, hydrocolloids, and alginates. Recent studies have investigated new technologies such as electrospun biopolymer nanofibers to create sprayable dressings while also exploring new roles for traditional materials such as honey and other non-synthetic derivatives. This review provides an overview of various types of wound dressings, suggested uses and recent advancements in it. In addition, development of wound dressing biodegradable materials is the main objective of this paper which will provide general information on future wound dressing biodegradable materials.
A novel ligand was synthesized from terephthalaldehyde and o-phenylene diamine and treated with coumarin derivative to form a New Schiff base. Co(II), Ni(II) and Cu(II) complexes of the ligand were synthesized. 1HNMR and LC-MS mass spectrometry studies were done. Antimicrobial studies were performed for the ligand and its metal complex with E.Coli and was found to be active. The ligand can be further modified and studied for its antimicrobial action in the future.
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