Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.12104/40898
Title: EELS analysis of Nylon 6 nanofibers reinforced with nitroxide- functionalized graphene oxide
Author: Viramontes-Horner, D.
Marquez-Sandoval, F.
Martin-del-Campo, F.
Vizmanos-Lamotte, B.
Sandoval-Rodriguez, A.
Armendariz-Borunda, J.
García-Bejarano, H.
Renoirte-Lopez, K.
García-García, G.
Issue Date: 2015
Abstract: Objective: The study aimed to assess the effect of a symbiotic gel on presence and severity of gastrointestinal symptoms (GIS) in hemodialysis patients. Design: A double-blinded, placebo-controlled, randomized, clinical trial was designed. The study was conducted at 2 public hospitals in Guadalajara, Mexico. Subjects and Intervention: Twenty-two patients were randomized to the intervention group (nutritional counseling+symbiotic gel) and 20 patients were randomized to the control group (nutritional counseling+placebo), during 2months of follow-up. Main Outcome Measure: Presence and monthly episodes of GIS were assessed by direct interview and severity by using the self-administered GIS questionnaire. Additionally, biochemical parameters, inflammatory markers, and nutritional status (dietary intake, subjective global assessment, anthropometry, and body composition) were evaluated. Results: After a 2-month treatment, intervention group had a significant reduction in prevalence and monthly episodes of vomit, heartburn, and stomachache, as well as a significant decrease in GIS severity compared with control group. Moreover, intervention group had a greater yet not significant decrease in the prevalence of malnutrition and a trend to reduce their C-reactive protein and tumor necrosis factor ? levels compared with control group. No symbiotic-related adverse side effects were shown in these patients. Clinical studies with longer follow-up and sample size are needed to confirm these results. Conclusions: We concluded that administration of a symbiotic gel is a safe and simple way to improve common GIS in dialysis patients. " 2015 National Kidney Foundation, Inc.",,,,,,"10.1053/j.jrn.2014.09.008",,,"http://hdl.handle.net/20.500.12104/40898","http://www.scopus.com/inward/record.url?eid=2-s2.0-84928161969&partnerID=40&md5=e3ae60e49222f72f6aae48d8bc226ddd
http://ovidsp.ovid.com/ovidweb.cgi?T=JS&CSC=Y&NEWS=N&PAGE=fulltext&D=prem&AN=25455039",,,,,,"3",,"Journal of Renal Nutrition",,"284
291",,"25",,"Scopus
MEDLINE
WOS",,,,,,"Index Medicus",,,,,,"Effect of a symbiotic gel (Lactobacillus acidophilus + Bifidobacterium lactis + Inulin) on presence and severity of gastrointestinal symptoms in hemodialysis patients",,"Article" "42660","123456789/35008",,"Gutiérrez, S.D., Universidad de Guadalajara, Mexico",,"Gutierrez, S.D.",,"2009",,"Educational institutions are one of the main determining mediators in the social perception of science, important factor if one takes into account that students spend a great part of their lives in the schools. Research performed with undergraduate students of the University of Guadalajara shows that most of them refer to school (at the different educational levels) as the main source which have contributed to build their social representations of science that refers almost exclusively to so called "hard sciences". With in school, the image of the teacher is an important referent regarding the students likes or dislikesabout science. The information was gathered by interviews and some other exercises that included open and closed answers.",,,,,,,,,"http://hdl.handle.net/20.500.12104/40881","http://www.scopus.com/inward/record.url?eid=2-s2.0-77955508017&partnerID=40&md5=7536533f72631192cfdc9e93d51ceb1a",,,,,,"3",,"Interamerican Journal of Psychology",,"456
465",,"43",,"Scopus",,,,,,"School; Science; Social representation; Undergraduate students",,,,,,"Educational Institutions in the Social Representation of Science in Undergraduate Students [Las instituciones educativas en la representación social de la ciencia en estudiantes de pregrado]",,"Article" "42665","123456789/35008",,"Leyva-Porras, C., Centro de Investigación en Materiales Avanzados S.C. (CIMAV-Unidad Monterrey), Av. Alianza Norte # 202, Apodaca, N.L. C.P. 66600, Mexico, Centro de Investigación en Materiales DIP-CUCEI, Universidad de Guadalajara, Av. Revolución # 1500, Col. Olímpica, Guadalajara C.P. 44430, Mexico; Ornelas-Gutiérrez, C., Centro de Investigación en Materiales Avanzados S. C. (CIMAV), Laboratorio Nacional de Nanotecnología, Complejo Industrial Chihuahua, Miguel de Cervantes # 120, Chihuahua, Chih. 31109, Mexico; Miki-Yoshida, M., Centro de Investigación en Materiales Avanzados S. C. (CIMAV), Laboratorio Nacional de Nanotecnología, Complejo Industrial Chihuahua, Miguel de Cervantes # 120, Chihuahua, Chih. 31109, Mexico; Avila-Vega, Y.I., Centro de Investigación en Materiales Avanzados S.C. (CIMAV-Unidad Monterrey), Av. Alianza Norte # 202, Apodaca, N.L. C.P. 66600, Mexico; MacOssay, J., Department of Chemistry, University of Texas-Pan American, 1201 W. University Dr., Edinburg, TX 78539, United States; Bonilla-Cruz, J., Centro de Investigación en Materiales Avanzados S.C. (CIMAV-Unidad Monterrey), Av. Alianza Norte # 202, Apodaca, N.L. C.P. 66600, Mexico",,"Leyva-Porras, C.
Ornelas-Gutierrez, C.
Miki-Yoshida, M.
Avila-Vega, Y.I.
MacOssay, J.
Bonilla-Cruz, J.",,"2014",,"A detailed analysis by transmission electron microscopy (TEM) and electron energy loss spectroscopy (EELS) of nitroxide-functionalized graphene oxide layers (GOFT) dispersed in Nylon 6 nanofibers is reported herein. The functionalization and exfoliation process of graphite oxide to GOFT was confirmed by TEM using electron diffraction patterns (EDP), wherein 1-4 graphene layers of GOFT were observed. The distribution and alignment of GOFT layers within a sample of Nylon 6 nanofiber reveals that GOFT platelets are mainly within the fiber, but some were partially protruding from it. Furthermore, Nylon 6 nanofibers exhibited an average diameter of 225 nm with several microns in length. GOFT platelets embedded into the fiber, the pristine fiber, and amorphous carbon were analyzed by EELS where each spectra [corresponding to the carbon edge (C-K)] exhibited changes in the fine structure, allowing a clear distinction between: (i) GOFT single-layers, (ii) Nylon-6 nanofibers, and (iii) the carbon substrate. EELS analysis is presented here for the first time as a powerful tool to identify functionalized graphene single-layers (< 4 layers of GOFT) into a Nylon 6 nanofiber composite. " 2013 Elsevier Ltd. All rights reserved.
URI: http://hdl.handle.net/20.500.12104/40886
http://www.scopus.com/inward/record.url?eid=2-s2.0-84895065631&partnerID=40&md5=c44996dcd9fcebdd15d5a04ad14c50b5
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