Essays about: "uv"

Showing result 16 - 20 of 382 essays containing the word uv.

  1. 16. Water purification of ibuprofen using whey protein aerogels with and without PNF-structure

    University essay from KTH/Skolan för industriell teknik och management (ITM)

    Author : Jessica Lyrner Morén; David Jonsson; [2023]
    Keywords : Aerogels; water purification; ibuprofen; protein nanofibrils PNF ; whey protein; attitudes; scientific research; Aerogeler; vattenrening; ibuprofen; protein nanofibriller PNF ; vassleprotein; attityder; naturvetenskaplig forskning;

    Abstract : Clean water, free from pharmaceuticals, is important both for land and water living animals. Protein nanofibrils (PNFs) have already been shown to be a promising candidate for water purification of pharmaceuticals but there is a lack of research that compares PNF materials to non-PNF protein materials for water purification. READ MORE

  3. 17. Development and Evaluation of an Enzyme-Based Sunscreen

    University essay from Lunds universitet/Bioteknik; Lunds universitet/Bioteknik (master)

    Author : Karolina Eriksson Torfgård; [2023]
    Keywords : Enzyme activity; UV-filter; Protease; Biotechnology; Technology and Engineering;

    Abstract : Ultraviolet radiation (UVR), specifically of UVA and UVB, has been associated with the development of both photoaging and photo-carcinogenesis, potentially leading to cancer. The use of sun protection in the form of UV filters is known to minimize these damages. READ MORE

  4. 18. Evaluation of antioxidant effect of an algae extract on skin: in vitro study

    University essay from Malmö universitet/Institutionen för biomedicinsk vetenskap (BMV)

    Author : Oday Al Mustafa; [2023]
    Keywords : Algae extract; antioxidant; DPPH; microalgae; ROS; skin covered oxygen electrode; skin;

    Abstract : Algae extracts are used as cosmetic products and used as additives in specific foods because of their antioxidant activity. Reactive oxygen species (ROS) such as hydrogen peroxide and superoxide radicals are toxic on the skin and can be scavenged by antioxidants, which are abundant in microalgae. READ MORE

  5. 19. Quantitative and qualitative analysis of dyes in pulp from recycled textiles

    University essay from KTH/Fiber- och polymerteknologi

    Author : Anna Bevin; [2023]
    Keywords : Textile fibers; Dyes; Kappa number; FTIR; UV-VIS; Textilfibrer; Färgämnen; Kappatal; FTIR; UV-VIS;

    Abstract : To decrease the environmental footprint, the textile industry needs to become more circular. One company that is trying to close the textile lifecycle loop is the Swedish company Renewcell. In the Renewcell process, discarded clothes and other textile waste are turned into a dissolving pulp that can be used for production of new textiles. READ MORE

  6. 20. Processing techniques of perovskite solar cells : Properties depending on material and manufacturing

    University essay from Uppsala universitet/Fysikalisk kemi

    Author : Andréa Nordmark; Simon Nilsson; [2023]
    Keywords : ;

    Abstract : This project investigates how different types of perovskite solar cells, differentiated by choice of materials and processing techniques, compares to each other regarding performance and characterization. The purpose of the project is to further develop perovskite solar cells and to improve the method of manufacturing for better performance. READ MORE