Browsing by Author "Yazdani-Pedram Zobeiri, Mehrdad"
Now showing items 1-20 of 24
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Briones, Ximena G.; Encinas, María V.; Petri, Denise F.S.; Pavez, Jorge E.; Tapia, Ricardo A.; Yazdani-Pedram Zobeiri, Mehrdad; Urzúa Acevedo, Marcela (2011)The adsorption of hydrophobically modified polyelectrolytes derived from poly(maleic anhydride-alt-styrene) (P(MA-alt-St)) containing in their side chain aryl-alkyl groups onto amino- or methyl-terminated silicon wafers ...
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González Navarrete, Javier; Toral Ponce, María; Leiva, Angel; Yazdani-Pedram Zobeiri, Mehrdad; Ríos, Hernán; Briones-Olarán, Ximena; Urzúa Acevedo, Marcela (Elsevier B.V., 2016)Adsorption of As (V) by poly (N-octyl-4-vinylpyridinium) bromide (P4VPyC8), used as solid phase, was studied. Determination of As (V) was carried out by direct measurement of the fluorescence intensity on the solid phase. ...
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Pérez, M. De Los A.Arada; Yazdani-Pedram Zobeiri, Mehrdad (2013)ABSTRACT Chloride selective polymeric liquid membrane electrode has been developed by using Bis-(2-ethylhexyl) Sebacate (DOS) as plasticizer and 2-[5-(4-nitrophenyl) furyl]-4,5-diphenyl imidazole (FFDFIN) as ionophore. ...
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Mena, Juan F.; Neira Carrillo, Andrónico; Yazdani-Pedram Zobeiri, Mehrdad; Kogan Bocian, Marcelo (American Scientific Publishers, 2013)With the purpose of obtaining stable and non-toxic nanocomposites with potential biomedical applications we coated gold nanoparticles (AuNP) with chitosan (CHI) and CHI grafted with poly(Nisopropilacrylamide) (PNIPAAm) and ...
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Abugoch James, Lilian; Tapia, Cristián; Villamán, Maria C.; Yazdani-Pedram Zobeiri, Mehrdad; Díaz Dosque, Mario (2011)Quinoa protein/chitosan films were obtained by solution casting of blends of quinoa protein extract (PE) and chitosan (CH). Films from a PE/CH blend were characterized by FTIR, X-ray diffraction, thermal analysis, and SEM. ...
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Arada Pérez, M. de los Ángeles; Yazdani-Pedram Zobeiri, Mehrdad (2013)The construction and evaluation of an all-solid-state type electrode selective to nitrate based on poly(vinyl chloride) (PVC) as polymeric membrane, diethyl phthalate as plasticizer and tetradecilammonium nitrate (TDAN) ...
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Vera, A.; Valenzuela, M. A.; Yazdani-Pedram Zobeiri, Mehrdad; Tapia, C.; Abugoch James, Lilian (Elsevier, 2019)Quinoa proteins (QP) have promise as a potential source of novel food ingredients, and it is of great interest to know how high-intensity ultrasound (HIUS) treatments affect the properties of QP. This work aimed to study ...
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Arada Pérez, María de los Angeles; Cortés Nodarse, I.; Yazdani-Pedram Zobeiri, Mehrdad (2004)A potentiometric all-solid-state type ion-selective electrode (ISE) for NO3 - was constructed and characterized. It is based on a mixture of tetra-decyl-ammonium nitrate (TDAN) as ionophore, di-butyl phthalate (DBP) as ...
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Arada Pérez, María de los Ángeles; Landazury Yanes, Santiago; Cardona, M.; Aguilera, L.; Yazdani-Pedram Zobeiri, Mehrdad (Sociedad Chilena de Quimica, 2010)l-furoyl-3,3-diethylthiourea was used as a novel neutral carrier in ion selective electrode for copperII detection and determination. The Cu2+ selective plasticized polyvinyl chloride (PVC) membrane electrode exhibited ...
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Yazdani-Pedram Zobeiri, Mehrdad; Calderon, Katia; Quijada Abarca, Juan (Sociedad Chilena de Quimica, 2000)Polypropylene (PP) was functionalized in solution by grafting with monomethyl itaconate (MMI) by using xylene and decalin as solvents and 2,5-dimethyl-2,5-bis(tert-buthylperoxy)hexane (Lup. 101 ) as radical initiator. The ...
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Yazdani-Pedram Zobeiri, Mehrdad; Vega, Héctor; Quijada Abarca, Juan (Wiley-VCH Verlag, 1996)Grafting of polypropylene was carried out in both boiling xylene and decalin as solvent medium with itaconic acid (2-methylenesuccinic acid) as functional polar monomer using 2,5-dimethyl-2,5-bis(tert-butylperoxy)hexane ...
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Folch Cano, Christian; Yazdani-Pedram Zobeiri, Mehrdad; Olea Azar, Claudio (MDPI AG, 2014)© 2014 Molecules. The numerous hydroxyl groups available in cyclodextrins are active sites that can form different types of linkages. They can be crosslinked with one another, or they can be derivatized to produce monomers ...
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Aguilar Bolados, Héctor; Yazdani-Pedram Zobeiri, Mehrdad; Contreras Cid, Ahirton; López Manchado, Miguel; May Pat, Alejandro; Avilés, F. (Elsevier Ltd, 2017)© 2016 Elsevier Ltd The electrical and piezoresistive response of hybrid nanocomposites comprising a combination of few-layer thermally reduced graphite oxide (TRGO) and multiwall carbon nanotubes (MWCNTs) mixed with natural ...
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Aguilar Bolados, Héctor; Yazdani-Pedram Zobeiri, Mehrdad; Brasero, Justo; López Manchado, Miguel (Hindawi, 2015)The natural rubber (NR) latex consists of polymer particles charged negatively due to the adsorbed phospholipids and proteins molecules. The addition of stable aqueous suspension of thermally reduced graphite oxide (TRGO) ...
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Yazdani-Pedram Zobeiri, Mehrdad; Menzel, Cristian; Toro, Patricio; Quijada Abarca, Juan; May-Pat, Alejandro; Avilés, Francis (2013)Multi-walled carbon nanotubes (CNTs) are functionalized with itaconic acid (IA) and its derivative, monomethylitaconate (MMI), to prepare CNT/isotactic polypropylene (PP) composites. To promote dispersion and improved ...
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Tapia, Cristián; Montezuma, Víctor; Yazdani-Pedram Zobeiri, Mehrdad (2008)The aim of this work was to develop a procedure for encapsulation of diltiazem HCl by spray coagulation. Factors affecting the formulations such as the effect of NaCl on the solubility of diltiazem in alginate solution, ...
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Tapia, Cristián; Ormazabal, Víctor; Costa, Edda; Yazdani-Pedram Zobeiri, Mehrdad (2007)The aim of this work was to develop prolonged diltiazem hydrochloride release matrices based on alginate-gelatin mixtures and establish the drug release mechanism. The erosion, swelling, and dissolution behavior of the ...
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Tapia, Cristián A.; Ormazabal, Víctor; Costa, Edda; Yazdani-Pedram Zobeiri, Mehrdad (TAYLOR & FRANCIS INC, 2007-06)The aim of this work was to develop prolonged diltiazem hydrochloride release matrices based on alginate-gelatin mixtures and establish the drug release mechanism. The erosion, swelling, and dissolution behavior of the ...
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Arada Pérez, María de los Angeles; Yazdani-Pedram Zobeiri, Mehrdad; Marín, Jorge; Planche, Alejandro Speck (2009)In this work an ESI is valued of the plasticized liquid membranes with 1-furoyl 3,3 diethylthiourea as ionophore (neutral portadore), tributyl phosphate as plasticizer and poly(vinyl chloride) as matrix on a sensitive ...
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Quijada Abarca, Juan; Guevara, Juan Luis; Yazdani-Pedram Zobeiri, Mehrdad; Galland, Griselda B.; Ribeiro, D. (SPRINGER-VERLAG, 2002-12)1-Octadecene (C18) was polymerized by using different metallocene catalysts. The rac-Et(Ind)(2)ZrCl2/MAO (I) and rac-Me2Si(Ind)(2)ZrCl2/MAO (III) presented the highest C, activity as compared with rac-Et(2-Me-Ind)(2)ZrCl2/MAO ...