Spectral features of composite oil-in-water emulsions containing silicon nanoparticles

Рыбалтовский, А. О.; Баграташвили, В. Н.; Belogorokhov, A. I.; Колташев, В. В.; Плотниченко, В. Г.; Попов, А. П.; Priezzhev, Alexander V.; Sviridova, A. A.; Zaitseva, Kseniya V.; Tutorskii, I.A.; Ищенко, А. А.

doi:10.1134/s0030400x06100146

Cited by 13 publications

(7 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The larger extinction (unity minus transmittance) -the more pronounced are protecting properties of the medium. This work follows our previous investigations published earlier 3,9,10,11 .…”

Section: Methodsmentioning

confidence: 79%

Monte Carlo calculations of UV protective properties of emulsions containing TiO 2 , Si and SiO 2 nanoparticles

et al. 2007

View full text Add to dashboard Cite

In this paper, we investigate the effect of nanoparticles made of different materials, such as titanium dioxide (TiO 2 ), silicon (Si), and silica (SiO 2 ) on UV protective properties of transparent emulsion used for sunscreens within the range of diameters d = 10 -200 nm by means of Monte Carlo simulations. As a result, silicon nanoparticles of appropriate sizes are the most protective-efficient within the whole UV spectral range among all kinds of investigated particles. Within one kind of particles, specific sizes are the following. For shorter wavelengths of the considered range (λ = 290 nm) 20-100-nm TiO 2 and 30-100-nm Si particles are the most effective protectors. For longer wavelengths (350 and 400 nm) the most pronounced attenuation is obtained with: a) for Si: d = 40 -120 nm (λ = 350 nm) and d = 60 -140 nm-sized (λ = 400 nm) particles, b) for TiO 2 : d = 80 -160 nm (λ = 350 nm) and d = 120 -180 nm-sized (λ = 400 nm) particles. Silica particles are much less protective than those mentioned above due to small refractive index mismatch between them and the surrounding emulsion.

show abstract

“…The larger extinction (unity minus transmittance) -the more pronounced are protecting properties of the medium. This work follows our previous investigations published earlier 3,9,10,11 .…”

Section: Methodsmentioning

confidence: 79%

Monte Carlo calculations of UV protective properties of emulsions containing TiO 2 , Si and SiO 2 nanoparticles

et al. 2007

View full text Add to dashboard Cite

show abstract

“…The latter are nanoparticles of titanium dioxide (TiO 2 ) and zinc oxide (ZnO), which increase the share of reflected and absorbed radiation. Some authors suggest using silicon nanoparticles for this purpose [5].…”

Section: Introductionmentioning

confidence: 99%

<title>Influence of multiple light-scattering on TiO2 nanoparticles imbedded into stratum corneum on light transmittance in UV and visible wavelength regions</title>

et al. 2007

View full text Add to dashboard Cite

This paper focuses on the simulation of propagation of radiation in UV and visible wavelength regions within a superficial skin layer (stratum corneum, SC) partially filled with titanium dioxide (TiO 2 ) nanoparticles. Volume concentrations of the particles (0.67% -2.25%) correspond to the maximal concentrations of the considered particles in the frames of independent scattering. Transmittance of 307-, 400-, and 500-nm light through a 20-µm thick SC is calculated. The effect of the TiO 2 nanoparticles on the contribution of photons undergone different numbers of scattering acts into transmittance is considered. It is shown that administration of the nanoparticles results in the broadening of the distribution of transmitted photons over undergone scattering acts. It also results in the shift of the maximum location of this distribution to larger number of scattering acts for the wavelengths of 400 and 500 nm being the latter the most pronounced. The increase of undergone scattering acts leads to the elongation of photon trajectories within the medium and results in the increase of the diffuse reflected light and the transmittance decrease.

show abstract

“…This technology has been applied, e.g., in production of optical phantoms (models) of biotissues [4,5]. There are a number of studies considering the use of silicon nanoparticles as well [6].…”

Section: Introductionmentioning

confidence: 99%

Simulation of the effect of photoprotective titanium dioxide (TiO2) and zinc oxide (ZnO) nanoparticles on the thermal response and optical characteristics of skin

2015

Self Cite

View full text Add to dashboard Cite

The thermal response of skin covered with a mixture of titanium dioxide (TiО 2 ) and zinc oxide (ZnO) nanoparticles of optimal sizes and irradiated by sunlight has been calculated. The nanoparticles were rubbed into the skin for maximum protection against the incident radiation. The dependences of the temperature dynamics in different skin layers (corneal layer, epidermis, dermis) have been obtained and analyzed upon skin irradiation with light at a wavelength of 310-800 nm. It has been found that increasing light scattering and absorption due to the nanoparticles introduced into the corneal layer resulted in a decrease in the thermal load and penetration depth of the incident radiation.

show abstract

Spectral features of composite oil-in-water emulsions containing silicon nanoparticles

Cited by 13 publications

References 8 publications

Monte Carlo calculations of UV protective properties of emulsions containing TiO 2 , Si and SiO 2 nanoparticles

Monte Carlo calculations of UV protective properties of emulsions containing TiO 2 , Si and SiO 2 nanoparticles

<title>Influence of multiple light-scattering on TiO2 nanoparticles imbedded into stratum corneum on light transmittance in UV and visible wavelength regions</title>

Simulation of the effect of photoprotective titanium dioxide (TiO2) and zinc oxide (ZnO) nanoparticles on the thermal response and optical characteristics of skin

Contact Info

Product

Resources

About