Nanoemulsions have garnered significant attention in the cosmetic industry due to their ability to enhance ingredient dispersion,improve topical absorption,and enable targeted delivery of active compounds within the s...Nanoemulsions have garnered significant attention in the cosmetic industry due to their ability to enhance ingredient dispersion,improve topical absorption,and enable targeted delivery of active compounds within the skin layers.These nano-sized emulsions allow skincare products,like moisturizers,anti-aging creams,and sunscreens,to penetrate the skin more deeply and be absorbed better.They can also release their active ingredients gradually,which enhances the product's effectiveness.Additionally,nanoemulsions are more stable,meaning they protect ingredients from breaking down or losing their effectiveness,which helps extend the shelf life of the products.However,despite their advantages,nanoemulsions come with challenges,such as difficulties in producing them on a large scale,meeting safety regulations,and ensuring they remain stable over time.Future research will likely focus on improving how these formulations are made,making sure they are safe to use,and exploring more environmentally friendly and personalized solutions for skincare.As this technology develops,nanoemulsions have the potential to transform cosmetic formulations by offering more innovative and effective skincare options.展开更多
This review is presented as a common interest in silver nanoparticles, their origin, activity, and toxicity in cosmetic. The application of nanotechnology and nanomaterials can be found in many cosmetic products inclu...This review is presented as a common interest in silver nanoparticles, their origin, activity, and toxicity in cosmetic. The application of nanotechnology and nanomaterials can be found in many cosmetic products including moisturizer, hair care products, makeup and sunscreen. Nanomaterials are now being used in leading cosmetics products, most commonly as chemicals used to give the protection. A silver nanoparticle is the potent and broad spectrum antimicrobial agent. This review paper looks into use of nano silver and provides an overview of current activity in this area.展开更多
B and N mixed anions co-doped titania with various crystal phases such as anatase,brookite,and rutile were successfully synthesized by a hydrothermal synthesis followed by heat treatment in an ammonia gas atmosphere a...B and N mixed anions co-doped titania with various crystal phases such as anatase,brookite,and rutile were successfully synthesized by a hydrothermal synthesis followed by heat treatment in an ammonia gas atmosphere at 550-650℃(denoted as BN-Ana_x,BN-Bro_x,and BN-Rut_x,x is the treatment temperature).The colors of as-prepared BN-Ana,BN-Bro,and BN-Rut are red,yellow-green,and cyangreen,respectively.The color changing mechanism of titania was related to their various band gap structure and the existence of B-N bonding.The nitridation temperature exhibits effective color changing compared to that of nitridation time.The different phases of the mixed anion codoped titania possess different photocatalytic deNO_(x) activity.The BN-Ana and BN-Rut show poor photocatalytic deNO_(x) activity,while the BN-Bro shows excellent photocatalytic deNO_(x) activity,better than that of standard titania photocatalyst Degussa P25.The colorful titania with low-photocatalytic activity is heavy metal elements free,indicating their possible applications as nontoxic color pigments or novel cosmetic raw materials.展开更多
文摘Nanoemulsions have garnered significant attention in the cosmetic industry due to their ability to enhance ingredient dispersion,improve topical absorption,and enable targeted delivery of active compounds within the skin layers.These nano-sized emulsions allow skincare products,like moisturizers,anti-aging creams,and sunscreens,to penetrate the skin more deeply and be absorbed better.They can also release their active ingredients gradually,which enhances the product's effectiveness.Additionally,nanoemulsions are more stable,meaning they protect ingredients from breaking down or losing their effectiveness,which helps extend the shelf life of the products.However,despite their advantages,nanoemulsions come with challenges,such as difficulties in producing them on a large scale,meeting safety regulations,and ensuring they remain stable over time.Future research will likely focus on improving how these formulations are made,making sure they are safe to use,and exploring more environmentally friendly and personalized solutions for skincare.As this technology develops,nanoemulsions have the potential to transform cosmetic formulations by offering more innovative and effective skincare options.
文摘This review is presented as a common interest in silver nanoparticles, their origin, activity, and toxicity in cosmetic. The application of nanotechnology and nanomaterials can be found in many cosmetic products including moisturizer, hair care products, makeup and sunscreen. Nanomaterials are now being used in leading cosmetics products, most commonly as chemicals used to give the protection. A silver nanoparticle is the potent and broad spectrum antimicrobial agent. This review paper looks into use of nano silver and provides an overview of current activity in this area.
基金supported by the KOSéCosmetology Research Foundationthe Japan Society funded the present work for the Promotion of Science (JSPS)Grant-in-Aid for Scientific Research (Nos.16H06439 and 20H00297)。
文摘B and N mixed anions co-doped titania with various crystal phases such as anatase,brookite,and rutile were successfully synthesized by a hydrothermal synthesis followed by heat treatment in an ammonia gas atmosphere at 550-650℃(denoted as BN-Ana_x,BN-Bro_x,and BN-Rut_x,x is the treatment temperature).The colors of as-prepared BN-Ana,BN-Bro,and BN-Rut are red,yellow-green,and cyangreen,respectively.The color changing mechanism of titania was related to their various band gap structure and the existence of B-N bonding.The nitridation temperature exhibits effective color changing compared to that of nitridation time.The different phases of the mixed anion codoped titania possess different photocatalytic deNO_(x) activity.The BN-Ana and BN-Rut show poor photocatalytic deNO_(x) activity,while the BN-Bro shows excellent photocatalytic deNO_(x) activity,better than that of standard titania photocatalyst Degussa P25.The colorful titania with low-photocatalytic activity is heavy metal elements free,indicating their possible applications as nontoxic color pigments or novel cosmetic raw materials.
