نتایج جستجو برای: films

تعداد نتایج: 90993  

hedayati rad, fatemeh, hossini, ebrahim, Khodayian Chegini , faramarz, sharifan, anooshe,

Background & Objective: A large number of non-recyclable packaging materials, which are harmful for the health of consumers, are produced all over the world. The Suggested solution is using films and coatings which are biodegradable in nature. Pullulan is a biopolymer that is produced by Aureobasidium pullulans and used in order to produce edible films. These edible films could contain antioxid...

Structural, electrical and optical properties of indium tin oxide or ITO (In2O3:SnO2) thin films on different substrates are investigated. A 100-nm-thick pre-deposited zinc oxide (ZnO) buffer layer is utilized to simultaneously improve the electrical and optical properties of ITO films. High purity ZnO and ITO layers are deposited with a radio frequency sputtering in argon ambient with plasma p...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
leila monjazeb marvdashti masoud yavarmanesh arash koocheki

introduction:packaging is an important factor in food industry and is dominated by petroleum-derived polymers. therefore, the amount of research involving the production and characterization of biodegradable films has increased substantially, mainly due to interest in minimizing the ecological impact caused by the use of synthetic packaging materials. several biopolymers have been exploited to ...

In the current study, whey protein- pullulan- clay nanocomposite films are prepared by casting method. The effect of nanoclay at three concentrations (1%, 3% and 5%) on physical properties such as moisture content, solubility in water, water vapor permeability and transparency of whey protein- pullulan composite films investigated. The results show that the effect of nanoparticles on composite ...

In the current study, whey protein- pullulan- clay nanocomposite films are prepared by casting method. The effect of nanoclay at three concentrations (1%, 3% and 5%) on physical properties such as moisture content, solubility in water, water vapor permeability and transparency of whey protein- pullulan composite films investigated. The results show that the effect of nanoparticles on composite ...

ارسلانی, سودابه, قدس الهی, طیبه, نیشابوری نژاد, تیام, وساقی, محمد علی ,

Ag, Au nanoparticles and Ag-Au nanocomposite were prepared by co-deposition of RF-sputtering and RF-PECVD from acetylene gas and Ag, Au targets. Atomic structure and topography were investigated by X-ray diffraction (XRD) and atomic force microscopy (AFM), respectively. UV-Visible spectra samples indicated that the activity of Ag and Au nanoparticles in the vicinity of each other increased ...

Copper films of 300 nm thickness deposited by planar magnetron sputtering on glass substrates, for substrate temperatures between 300 and 500 K, and deposition rate of 10 ?s?1. Microstructure of these films was obtained by X-ray diffraction, while the texture mode of diffractometer was used for stress measurement by the sin2? technique. The components of the stress tensor are obtained using mea...

Journal: :journal of food quality and hazards control 0
n. shavisi department of food sciences and technology, faculty of health, kermanshah university of medical sciences, kermanshah, iran a. akhondzadeh basti department of food hygiene, faculty of veterinary medicine, university of tehran, tehran, iran a. khanjari department of food hygiene, faculty of veterinary medicine, university of tehran, tehran, iran a. misaghi department of food hygiene, faculty of veterinary medicine, university of tehran, tehran, iran y. shahbazi department of food hygiene and quality control, faculty of veterinary medicine, razi university, kermanshah, iran a. hajjar bargh department of food sciences and technology, faculty of food sciences, islamic azad university, science and research branch, tehran, iran

background: innovative bioactive films incorporated with antimicrobial agents have been recently developed for food preservation. the aim of this study was to evaluate antibacterial activity of polylactic acid (pla) films incorporated with ziziphora clinopodioides essential oil (zeo) and ethanolic propolis extract (epe) against some common food-borne pathogens. methods: the volatile chemical co...

Journal: :فیض 0
سید حسین حجازی sayed hossein hejazi department of parasitology, isfahan medical science university, isfahan, iranگروه انگل شناسی، دانشگاه علوم پزشکی اصفهان سپیده طلوعی sepide tolouei علی اصیلیان ali asilian محمد شاطالبی mohammad shatalebi مهیار مستقیم mahyar mostaghim گیتی صادقیان giti sadeghian

background: with respect to the prevalence of leishmaniosis in our country and the problems occurred in the therapeutic approaches and also with respect to the previous successful reports of paromomycin efficacy in this regard, the present study was conducted to determine the effects of paromomycin and gentamicine sulphate on promastigotes of leishmania major.materials and methods: it was an ex...

Journal: :journal of reports in pharmaceutical sciences 0
rahim bahri-najafi gholam reza asghari hamid reza dehlavi

buccal mucoadhesive films have attracted great attention among mucoadhesive systems due to their ability to adhere and remain on the oral mucosa and to release their drug content gradually. the aim of the current study was to formulate the ziziphus jujuba aqueous extract as buccal bioadhesive film, which continiously releases the drug at sufficient concentration for reducing the frequency of th...

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