• Título:  ASSESSMENT OF METAL NANOPARTICLES AND TOTAL METAL CONTENT IN TEXTILE PRODUCTS AND COSMETICS
• Autor:  Rujido Santos, Iria
• Universidad:  Universidad de Santiago de Compostela
• Departamento:  Escuela de Doctorado Internacional (EDIUS)
• Fecha de Lectura:  19/07/2022
• Mención Europeo / Mención Internacional: concedido
• Programa de doctorado:  Programa de Doctorado en Ciencia y Tecnología Química por la Universidad de Santiago de Compostela y la Universidad de Vigo
• Dirección: 
  • Barciela Alonso, Mª Carmen (DIRECTOR)
  • Moreda Piñeiro, Antonio  (CODIRECTOR)
• Tribunal: 
  • JIMÉNEZ GARCÍA ALCALÁ, MARIA SIERRA (PRESIDENTE)
  • ABOAL SOMOZA, MANUEL (SECRETARIO)
  • Gabadage Dona, Thilini Madurangika Jayasinghe (VOCAL)
• Descriptores: 
  • ESPECTROSCOPIA DE MASAS
  • TECNOLOGIA TEXTIL
• Localización:  BIBLIOTECA XERAL USC
• 650565_1473990.pdf
• Resumen:
  Nanoparticles (NPs) are defined as particles with at least one dimension within the 1 at 100 nm range. Hence, nanomaterials exhibit novel properties that make them useful in different industry sectors (cosmetic industry, textile industry, biomedicine, and food industry among others). Regarding textil industry, NPs are used for modifying physico-chemical properties of textile fibers providing them higher stain and water resistance, higher ability to absorb dyes, antibacterial activity, ultraviolet light protection, and lower inflammability. On the other hand, in the cosmetic industry are used in moisturing creams and sunscreens. NPs in textiles and cosmetics can penetrate into the skin, reaching the bloodstream and accumulating in organs like liver, kidneys, spleen, brain and heart. Recently, several studies for evaluating synthetic nanoparticles have been performed. Most of the studies have been focused on cualitative characterization (and also quantitative assessment) in synthetic preparations. However, similar studies in complex samples are scarce. In addition, toxicity studies (in vitro and in vivo) in Humans are also insufficient. For this reason, the main aims of this Doctoral Thesis proyect are the development of analytical methods for detecting, characterizing and quantifying NPs in complex samples (personal care products and textile products), and the evaluation of their harmful effects in Humans (in vitro studies of cutaneous absorption, and in vitro studies of solubility of NPs in sweat). Nanoparticles (NPs) are defined as particles with at least one dimension within the 1 at 100 nm range. Hence, NPs exhibit novel properties that make them useful in different industry sectors (cosmetic industry, textile industry, medicine, and food industry, among others). Regarding textile industry, NPs are used for modifying physical and chemical properties of textile fibres providing them stain and water resistance, antibacterial activity, ultraviolet light protection, and/or fire retardancy. On the other hand, NPs are also commonly used in the cosmetics industry as sunscreens or preservatives. However, NPs in textiles and cosmetics can penetrate into the skin, reaching the bloodstream and accumulating in organs like liver, kidneys, spleen, brain, and heart. Most published studies on the determination of NPs have focused on the characterisation of synthetic samples. Nevertheless, similar studies on complex samples, such as textiles and moisturisers, are scarce. The main objective of this doctoral thesis project is the development of analytical methods to detect, characterise, and quantify NPs in textiles and moisturisers. On the other hand, the total metal content of the studied samples will also be quantified.