Superficies y Vacío最新文献

Relationship analysis of surface roughness measurements on coatings using AFM and fractal dimension by mesoscopic model methods 用细观模型方法分析AFM法测量涂层表面粗糙度与分形维数的关系

Superficies y Vacío Pub Date : 2023-05-22 DOI: 10.47566/2023_syv36_1-230501

A. González-Hernández, E. Suárez-Domínguez, E. Izquierdo-Kulich, A. Morales‐Cepeda

{"title":"Relationship analysis of surface roughness measurements on coatings using AFM and fractal dimension by mesoscopic model methods","authors":"A. González-Hernández, E. Suárez-Domínguez, E. Izquierdo-Kulich, A. Morales‐Cepeda","doi":"10.47566/2023_syv36_1-230501","DOIUrl":"https://doi.org/10.47566/2023_syv36_1-230501","url":null,"abstract":"Surface coating is a method used for protection against corrosion and environmental impact for metals. In the case of solid surfaces, coatings can be achieved by radio-frequency magnetron sputtering or other corrosion-resistant substances, which may involve the deposition of one or more layers, depending on the procedure involved, modifying the morphology of the surface and surface area. This work aims to study the relationship of two surface morphological methods through roughness and fractal dimension measurements in top-surface coatings, bilayer Ti/WTiN/WTiC (named as n = 1); multilayer [Ti/WTiN/WTiC] (named as n = 40) deposited by RF-magnetron sputtering. The measurements were obtained by profilometer and image processing pixel intensity. The topography of each coating exhibited texture with impurities as domes distributed in small cluster island types. The surface roughness were 9.42 and 18.63 nm; fractal dimension measurements were 2.55 and 2.32, respectively, with a low correlation between roughness and fractal dimension. The R-squared analysis exhibited a good relationship between the fractal dimension values, tending linear regression negative. The result of factorial design 22 confirmed the performance correlation and linear regression analyses. The fractal dimension measurements by the optical method can be great potential to evaluate surface roughness complementary in applications such as laboratories and even in scale industrial. Thus the result of statistical treatment shows high accuracy in the measurements.","PeriodicalId":423848,"journal":{"name":"Superficies y Vacío","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134438617","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

TOF–SIMS analysis of mouse fibroblasts cells 小鼠成纤维细胞的TOF-SIMS分析

Superficies y Vacío Pub Date : 2023-04-12 DOI: 10.47566/2023_syv36_1-230401

Y. Kudriavtsev, Claudia Hernandez-Mosqueira, R. Asomoza

引用次数: 0

Closing Editorial Note 结束语

Superficies y Vacío Pub Date : 2022-12-31 DOI: 10.47566/2022_syv35_0-220001

M. A. Santana-Aranda

引用次数: 0

The role of Zn-complexing agents in the chemical bath deposition of ZnO and ZnS thin films 锌络合剂在化学浴法制备ZnO和ZnS薄膜中的作用

Superficies y Vacío Pub Date : 2022-12-29 DOI: 10.47566/2022_syv35_1-221202

Johan Andrés Vargas Rueda, A. Alonso, M. Meléndez-Lira

引用次数: 0

Effect of the neodymium doping on the magnetic and structural properties of the Sr-hexaferrite obtained by the Pechini method 钕掺杂对Pechini法制备的sr -六铁体磁性和结构性能的影响

Superficies y Vacío Pub Date : 2022-12-23 DOI: 10.47566/2022_syv35_1-221201

M. F. Ramírez-Ayala, T. Pérez-Juache, A. Herrera-González, A. Guerrero

引用次数: 0

Mechanical properties and Keratinocytes cellular evaluation of Polycaprolactone/Collagen/Elastin Electrospun Fiber Scaffolds 聚己内酯/胶原/弹性蛋白静电纺丝纤维支架的力学性能和角质形成细胞评价

Superficies y Vacío Pub Date : 2022-10-31 DOI: 10.47566/2022_syv35_1-221001

Yanet E. Aguirre-Chagala, V. Altuzar, H. Beltrán, S. Muñoz-Aguirre, Efraín Garrido, R. Ruiz-Ramos, Claudia Mendoza Barrera

{"title":"Mechanical properties and Keratinocytes cellular evaluation of Polycaprolactone/Collagen/Elastin Electrospun Fiber Scaffolds","authors":"Yanet E. Aguirre-Chagala, V. Altuzar, H. Beltrán, S. Muñoz-Aguirre, Efraín Garrido, R. Ruiz-Ramos, Claudia Mendoza Barrera","doi":"10.47566/2022_syv35_1-221001","DOIUrl":"https://doi.org/10.47566/2022_syv35_1-221001","url":null,"abstract":"Bioinspired membranes as extracellular matrices are desired for skin regeneration. Herein, we fabricate four systems of fibrillar membranes composed of polycaprolactone (PCL), aminolyzed PCL, denatured collagen type I (C), and the blend of collagen hydrolysate types I and III (bC) or elastin (E), fabricated by the electrospinning process. The superficial features by SEM and optical profilometry, mechanical properties by puncture strength assays, and biological evaluation with a human keratinocyte cell line (HaCaT) for one day of aPCL6bCE (aPCL/collagen hydrolysate type I and III/Elastin), aPCL6CE (aPCL/denaturated Col I/elastin), aPCL6bC (aPCL/collagen hydrolysate type I and III), and PCL6bCE (PCL/collagen hydrolysate type I and III/Elastin) membranes are described. The aPCL6bCE and aPCL6CE fibers resulted in better structural properties for culturing cells, while aPCL6bC and PCL6bCE membranes have shown lower viability for keratinocytes, probably due to their different chemical surface and nanotopography. The roughness of these materials varied from 4.53 to 114.4 µm, depending on their diameter values. Puncture strength results were not significantly different within 2.25–2.66 MPa. Our results suggest that aPCL6bCE and aPCL6CE fibers have potential applications in skin tissue engineering, where the synergy among aminolyzed PCL and E seems to be a prerequisite to developing such activity.","PeriodicalId":423848,"journal":{"name":"Superficies y Vacío","volume":"156-157 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-10-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124046915","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Catalizadores Pd/SBA-15 en la oxidación catalítica vía húmeda del fenol

Superficies y Vacío Pub Date : 2022-08-20 DOI: 10.47566/2022_syv35_1-220801

Hermicenda Perez Vidal, María Antonia Lunagómez Rocha, S. García Hernández, J.G. Pacheco Sosa, J.G. Torres Torres, T.A. Zepeda Partida

引用次数: 0

Importance of liquid phase epitaxy on achieving near-lattice-matched growth of In0.145Ga0.855As0.132Sb0.868 layers on GaSb(100) substrates 液相外延对在GaSb(100)衬底上实现In0.145Ga0.855As0.132Sb0.868层近晶格匹配生长的重要性

Superficies y Vacío Pub Date : 2022-06-08 DOI: 10.47566/2022_syv35_1-220601

Miguel Ángel González Morales, J. C. Cruz Bueno, Gerardo Villa Martínez, Manolo Ramírez López, Daniel Flores Ramírez, Patricia Rodríguez Fragoso, Jose Luis Herrera Pérez, Yenny Lucero Casallas Moreno, J. Mendoza Álvarez

{"title":"Importance of liquid phase epitaxy on achieving near-lattice-matched growth of In0.145Ga0.855As0.132Sb0.868 layers on GaSb(100) substrates","authors":"Miguel Ángel González Morales, J. C. Cruz Bueno, Gerardo Villa Martínez, Manolo Ramírez López, Daniel Flores Ramírez, Patricia Rodríguez Fragoso, Jose Luis Herrera Pérez, Yenny Lucero Casallas Moreno, J. Mendoza Álvarez","doi":"10.47566/2022_syv35_1-220601","DOIUrl":"https://doi.org/10.47566/2022_syv35_1-220601","url":null,"abstract":"We report the growth of In0.145Ga0.855As0.132Sb0.868 layers on GaSb(100) substrates by the liquid phase epitaxy (LPE) technique using the ramp-cooling method. We achieved a near-lattice-matched epitaxial growth with a lattice mismatch of between the quaternary layer and GaSb(100) substrate due to optimal growth parameters. Aberration-corrected scanning transmission electron microscope (AC-STEM) confirmed the high crystalline quality of the quaternary layer and the low lattice mismatch in the heterostructure, without the presence of linear or planar defects. Also, the Secondary Ion Mass Spectrometry (SIMS) technique evidenced a uniform distribution of the atomic elements along the quaternary layer and an abrupt interface between the In0.145Ga0.855As0.132Sb0.868 layer and the GaSb substrate. Plasmon-phonon interactions were observed by Raman spectroscopy indicating that the crystalline quality increases at greater depth in the sample with respect to the surface. The quaternary layer presented a uniform and flat morphology, and luminescence emission attributed to the recombination of bound exciton states at 641 meV. The structural, chemical, and optical properties of the In0.145Ga0.855As0.132Sb0.868 layer demonstrated that it could be auspicious material for infrared range optoelectronic applications. Likewise, the LPE technique successfully shows that it should be used to grow near-lattice-matched heterostructures.","PeriodicalId":423848,"journal":{"name":"Superficies y Vacío","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131282944","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Caracterización colorimétrica, textura y calidad sanitaria de panes adicionados con maíces criollos y Curcuma longa

Superficies y Vacío Pub Date : 2022-04-07 DOI: 10.47566/2022_syv35_1-220407

C. Hernandez-Aguilar, Maria del Carmen Valderrama-Bravo, A. Dominguez-Pacheco, Raul Romero-Galindo, Otoniel Igno-Rosario, Eder Contreras-Gallegos, Rumen Ivanov Tsonchev, A. Cruz-Orea

{"title":"Caracterización colorimétrica, textura y calidad sanitaria de panes adicionados con maíces criollos y Curcuma longa","authors":"C. Hernandez-Aguilar, Maria del Carmen Valderrama-Bravo, A. Dominguez-Pacheco, Raul Romero-Galindo, Otoniel Igno-Rosario, Eder Contreras-Gallegos, Rumen Ivanov Tsonchev, A. Cruz-Orea","doi":"10.47566/2022_syv35_1-220407","DOIUrl":"https://doi.org/10.47566/2022_syv35_1-220407","url":null,"abstract":"En esta investigación se planteó como objetivo caracterizar color, textura y calidad sanitaria de pan adicionado con maíz criollo y cúrcuma. Se realizaron 14 diferentes panes empleando seis tipos de maíces (M1, M2, M3, M4, M5 y M6). Los principales hallazgos fueron a) El color de los maíces, harinas nixtamalizada y masas tuvieron diferencia significativa (p < 0.05) al comparar valores medios de parámetros de Luminosidad, a* y b*. Los maíces azules y rojizo M2 (37.01), M3 (44.06) y M6 (41.07) y, amarillos y amarillo-naranja M1 (21.26), M4 (15.92) y M5 (26.01) presentaron los valores inferiores en L* y superiores en b*, respectivamente. La menor diferencia en color ?E encontrada en el proceso de transformación de maíz a harina y masa, fue para maíces amarillos. b) En el pan de maíz se encontraron diferencias significativas en variable a* al compararse el mismo tipo de pan durante tres días consecutivos, en los panes BM1, BM5 y BM6, con una disminución de 7.5, 2.6 y 16.9%, con respecto al primer día. c) La calidad sanitaria del pan de trigo mejora con la adición de maíz nixtamalizado y cúrcuma. En los panes adicionados de maíz los que presentaron menor cantidad de colonias de hongos fueron los maíces azules y rojo (M2, M3 y M6). d) La dureza del pan de maíz criollo y cúrcuma no presentó diferencias durante tres días consecutivos beneficiando su conservación. El pan de maíz amarillo y cúrcuma BM1-C mostró incrementos en la dureza en los días 2 y 3.","PeriodicalId":423848,"journal":{"name":"Superficies y Vacío","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130310195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 4

Is sulfur the responsible for color of yellow Chiapas Amber? 硫磺是恰帕斯琥珀黄色的原因吗?

Superficies y Vacío Pub Date : 2021-12-16 DOI: 10.47566/2021_syv34_1-211201

G. Vázquez Bautista, M. Zapata Torres, F. Chalé-Lara, M. Meléndez Lira, E. Hernández Rodríguez, E. Valaguez Velázquez

引用次数: 1