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1
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Materials Science Poland
2008 Vol. 26, No. 2 389--394
EN Nanoparticles of manganese doped zinc sulfide (ZnS/Mn2+) were obtained by wet chemical method. AFM images of the nanoparticles were analysed and their size distribution was estimated. The layer of ZnS/Mn2+ nanoparticles reveals a semiconducting character. Conductivity increases with temperature and [...]
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Materials Science Poland
2013 Vol. 31, No. 4 501--505
EN Heusler alloy Co2FeAl (CFA) nanoparticles have been synthesized by reducing a mixture of the precursors: CoCl2_6H2O, Fe(NO3)3_9H2O and AlCl3_6H2O under H2 atmosphere. XRD, SEM and TEM techniques have been used for the characterization of the prepared material. XRD and SAED data from TEM show the for[...]
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Challenges of Modern Technology
EN This paper present the results of studies on ultra fine-crystalline silver bromide suspensions, which were stabilized by gelatin and excess of bromide ions. Relation between dosing rate of reactants to size of obtained silver bromide crystals was investigated. Granulometric properties obtained nanoc[...]
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Journal of KONES
EN Nanoparticles, so tiny that they are invisible, smaller in diameter than the wavelength of visible light, are extremely harmful to human health, much more so than fine dust in the PM10 - PM1 range. If you compare them in size, it's like a pinhead versus a truck wheel. Diameter spectrum of visible pa[...]
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Journal of KONES
EN A filter system is presented which allows the reduction of the concentration of ultrafine particles in vehicle cabins to very low levels. The original ventilation system is switched to the recirculation mode and all cabin intake air is supplied via a retrofitted filter system. Tests with a variety o[...]
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International Letters of Chemistry, Physics and Astronomy
2014 Vol. 4 37--47
EN In this work, ZnO films were prepared by drop casting technique. The films were deposited on quartz substrates under different annealing time (15,30,45 and 60 min.) at a constant temperature (800 °C). The optical properties were achieved by measuring the absorbance and transmittance spectra in the w[...]
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Optica Applicata
EN Microscopic structure of three types of porous glasses with the average pore diameter of 5, 7 and 140 nm obtained by chemical etching was studied by neutron diffraction. The analysis of diffraction patterns has shown that in these glasses, besides an amorphous phase forming a weakly structured backg[...]
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Optica Applicata
2013 Vol. 43, nr 2 s. 297--312
EN The paper proposes an alternative possibility for using the motion dynamics of tested particles of the Rayleigh light-scattering mechanism for estimating the degree of coherence of mutually orthogonal fields. The velocity of nanoparticles motion in the inhomogeneous optical field is chosen as the me[...]
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Materials Science Poland
2007 Vol. 25, No. 4 1143--1148
EN Iron oxide(III) nanoparticles were fabricated by the electron beam irradiation method. The structure and morphology of the iron oxide nanoparticles were analyzed by XRD, TEM, AFM and FTIR. Phase transformation temperatures were determined by DSC-TGA. Results showed that the phase transition point an[...]
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Materials Science Poland
2012 Vol. 30, No. 3 254--258
EN Response of five fungi and two bacteria to different salts of magnesium and iron for production of nanoparticles was studied. Pochonia chlamydosporium, and Aspergillus fumigatus were exposed to three salts of magnesium while Curvularia lunata, Chaetomium globosum, A. fumigatus, A. wentii and the bac[...]
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Materials Science Poland
2012 Vol. 30, No. 4 382--389
EN Cysteine capped magnetite nanoparticles (10 to 20 nm) were synthesized via coprecipitation method under ultrasonic irradiation. The influence of pH value of the solution and cysteine addition on the size distribution and hydrodynamic size of nanoparticles were studied via TEM and PCS methods, respec[...]
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Materials Science Poland
2008 Vol. 26, No. 1 127--134
EN A new idea of potential application of miniature light sources (micro-FED) have been presented for excitation of fluorophore dyes used in biochemical investigations. Such light sources are based on field emission phenomena in diode type structures. Surfaces of cold cathodes were modified by electrop[...]
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Obróbka Plastyczna Metali
PL O supersmarności zazwyczaj mówimy wówczas, kiedy dwie stykające się powierzchnie wykazują brak oporu podczas tarcia ślizgowego. Artykuł opisuje zjawisko ultra-niskiego tarcia dzięki zastosowaniu powłok z nanocząstek MoS2, wynikiem którego jest otrzymanie ultra-niskiego współczynnika tarcia. Autorzy [...]
EN Superlubricity is the state in which two contacting surfaces exhibit no resistance to sliding. The work describes a ultra-low friction phenomenon due to application of MoS2 nanoparticle coatings results in ultra-low friction coefficients in ambient atmosphere.It is shown the concept of superlubric[...]
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Przemysł Chemiczny
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Przemysł Chemiczny
2011 T. 90, nr 4 561-564
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Zeszyty Naukowe. Organizacja i Zarządzanie / Politechnika Śląska
2010 z. 50 5-20
PL pracy przedstawiono niektóre nowoczesne środki kosmetyczne, zawierające między innymi nanocząstki różnych materiałów, oraz omówiono wyniki badań ankietowych wybranej grupy kobiet w zakresie ich ogólnej wiedzy na temat stosowanych kosmetyków, z punktu widzenia ich jakości oraz potencjalnego wpływu na[...]
EN In this work some modern cosmetic products containing, between others, nanoparticles of different materials were presented and results of a questionnaire survey of a chosen group of women concerning their general knowledge on the used cosmetics from the point of view of their quality and potential i[...]
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Physicochemical Problems of Mineral Processing
2010 Vol. 45 85-98
EN A simple and economic method of synthesis of silver colloid nanoparticles with controlled size is presented. By reduction of [Ag(NH3)2]+ complex in sodium dodecylsulfate (SDS) micellar solution with three various reducing agents (hydrazine, formalin and ascorbic acid) the nanoparticles were produced[...]
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Polimery
2007 T. 52, nr 5 362-366
PL Celem badań przedstawionych w niniejszej publikacji było opracowanie technologii wytwarzania nanocząstek o właściwościach antybakteryjnych/bakteriostatycznych i warunków zastosowania tego rodzaju cząstek we włókienno-tworzywowych materiałach powłokowych o trwałych właściwościach bakteriostatycznych.[...]
EN The aim of the present study was to develop a process for the preparation of nanoparticles with antybacterial/bacteriostatic properties including the conditions of using these particles in textile-polymeric coating materials with stable bacteriostatic properties. The developed functional particles c[...]
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Prace Naukowe Instytutu Podstaw Elektrotechniki i Elektrotechnologii Politechniki Wrocławskiej. Konferencje
EN The sol-gel technology provides a relatively simple and cheap method of production of submicron-sized powders. Also, due to its wet-chemistry character doping and chemical modifications of such powders are fairly straightforward. Enables it obtaining various active powders for a broad possible varie[...]
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Polish Journal of Chemistry
2006 Vol. 80, nr 11 1845-1855
EN A convenient method of the synthesis of gold NPs with low polydispersity is described. Triphosphinogold oxonium salt [O(AuPPh3)3]BF4 in the presence of amine and dioxygen is a versatile gold atom source in mesitylene. The amine takes part in the reduction of gold(I) atom precursor. Therefore in a 1/[...]
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