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One of the disadvantages of nanoparticles or nanorobots is that the body may find these . The hair and skin also get protected from the UV rays because of liposomes. The types of nanomaterials that are used include nanocapsules, dendrimers, nanoemulsions, nanoliposomes, nano-hydroxyapatite materials, which have been used in cosmetics for various purposes such as oral care, protective carriers and delivering ingredients through the skin. The very well-known cosmetic manufacturers; L'Oral S.A. registered about seven patents for the use of nanoparticles in cosmetic preparations [9]. These are monodispersed, unimolecular and nanostructures with the dimensions of 20 nm. Later on, various cosmetic industries started the use of nanoparticles in the formulations of cosmetics. The widely used methods for the synthesis of niosomes are ether injection method, film method, sonication method of HandjaniVila, reverse-phase evaporation and heating method [40, 63]. Monomer + hydrophobe was mixed with the initiator + surfactant in water stirring for 1 h, mini emulsification was achieved by ultra sonicating for 120 s. A mixture of xylene and ferrocene, decomposition of the ferrocene-xylene mixtures in the temperature range 625-775 C at atmospheric pressure, begin to deposit carbon as well-aligned pure MWNT arrays on the quartz surfaces. The International Agency for Research on Carcinogens is particularly concerned about titanium dioxide, which has the same effect on lungs as asbestos, and can cause lung cancer. The use of SLN for the skin becomes appropriate as the nanoparticles contain lipid particles which allow the easy absorption of these nanoparticles through topical applications. Sunscreens make use of metal oxide nanoparticles like zinc oxide and titanium dioxide with intrinsic properties to absorb UV irradiation. Carbon nanotubes (CNTs) are the rolled graphene, hollow, cylindrical fibers and are made of graphene walls, cylindrical hollow fibers, and composed of graphene walls. Revisions:3 Here is when the ultra-tiny versions of these ingredients were invented to make the sunscreen transparent. These are considered as a 'nanosafe' carrier system that has negligible cytotoxicity and remarkable tolerance as these are made of biodegradable and physiological lipids. When pregnant mice were exposed to TiO2 nanoparticles male offspring caused brain damage. White means safer. 2 ). Polyethyleneimine coated upconversion nanoparticles are taken up by cells within 4hrs as compared to others. These are nano-vesicles made of self-assembly of essentially non-ionic surfactants [61], with or without the incorporation of cholesterol or lipids. These functional groups act as the site of attachment for the various chemical components. However, there are some drawbacks related to their use in drug delivery, such as the limitation to maintain efficacy in the target organ once the magnetic field is removed from outside. 2 022003 As compared to ZnO, TiO2 acts as an effective measure to protect against UV B, and hence when sun protection factor (SPF) is concerned TiO2 is more effective in terms of SPF at a given concentration [20, 21]. Similarly, anatase and rutile forms of TiO2 nanoparticles have shown reduced cell viability as well as a decrease in chlorophyll content in freshwater microalgae Chlorella sp.