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Investigation of Chemical Bath Deposition of ZnO Nanocrystals Thin Films Using Different ZnNO3 Concentration

材料科学与工程（中英文A版） 2012年第5期2卷 442-453页

作者： miguel hemandez hernandez Martin Lazcano Hernendez Juan hernandez Tecorralcol Gabriel Juarez Diaz Melissa Chavez Portillo Salvador Rosas Castilla L. Chaltel Lima Oscar Portillo Moreno Facultad de Ciencias Quimicas Benemerita Universidad Autonoma de Puebla Moxico Puebla Mexico CIDS-ICUAP Benemerita Universidad A utonoma de Puebla Moxico

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Piling up multidecker pyrgos[n]cages as antibacterial materials

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Science China Materials 2025年第01期 314-316页

作者： miguel A.Liuzzi-Vaamonde Jackson B.Lancaster Samantha A.Mason Yuanning Feng Department of Chemistry and Biochemistry The University of Oklahoma

The development of antibiotics is regarded as one of the most significant scientific advances in modern medicine. Before the commercialization of antibiotics, infectious diseases were catastrophic throughout history [1]. Penicillin was used to treat serious infections in the 1940s, but unfortunately, with the introduction of antibiotics came the emergence of antibiotic resistance [2,3]. Evolved and adapted methicillin-resistant Staphylococcus aureus (MRSA) strains are presently impacting community and healthcare systems across the globe [4].

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Genetic Stability of Cryopreserved Grapevine （Wtis vinifera L.） Genome by Vitrification Method

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Journal of Agricultural Science and Technology(B) 2016年第6期6卷 380-386页

作者： Maria Femanda Lazo Javalera Martin Ernesto Tiznado hemandez Irasema Vargas Arispuro miguel Angel Martinez Tellez Maria Auxiliadora Islas Osuna miguel Angel hemandez Ofiate Marisela Rivera Dominguez Food Science Coordination Research Center for Food and Development Hermosillo Sonora 83000 Mexico Food Technology of Plant Origin Coordination Research Center for Food and Development Hermosillo Sonora 83000 Mexico

Grapevine （Vitis spp.） is an economically important fruit crop worldwide. In Mexico, Sonora State leads the table grape production and exportation to international markets. In this regard, it is important to preserve the grape varieties during long time without phenotypical or genotypical changes. Cryopreservation is a good alternative, although it very often can induce changes in genome and phenotype. In this study, grapevine cv. ＂Flame Seedless＂ axillary buds were cryoprcserved by vitrification using the plant vitrification solution 2 （PVS2） and stored in liquid nitrogen （LN） for one hour, one week and one month, respectively. Genetic stability of buds cryopreserved under all treatments was evaluated using inter-simple sequence repeats （ISSR） markers. Ten ISSR primers were evaluated, but only two primers were possible to amplify distinct and reproducible bands with sizes between 300 bp and 2,000 bp. Different ISSR fragment patterns were recorded in cryopreserved buds as compared with control. These results suggest that cryopreservation by LN and vitrification-cryopreservation affect genetic stability in grapevine.

关键词： Table grape axillary buds liquid nitrogen vitrification PVS2 inter-simple sequence repeats.

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Changes in the Electrical Resistivity of Thin-Films for Polymer Composites Induced by Heating-Cooling Cycles

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材料科学与工程（中英文B版） 2012年第12期2卷 601-610页

作者： Susana hemandez Lopez Enrique Vigueras Santiago miguel Mayorga Rojas Delfino Reyes Contreras Research and Develop Laboratory on Advances Materials (LIDMA) Chemistry Faculty Autonomous University of Mexico State Paseo Col6n esquina Paseo Tollocan s/n Toluca C.P. 50000 Mdxico Sciences Faculty Autonomous University of Mexico State Av. lnstituto Literario 100 Col Centro Toluca C.P. 50000 Mgxico

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Cancer stem cell impact on clinical oncology

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World Journal of Stem Cells 2018年第12期10卷 183-195页

作者： Mariel E Toledo-Guzmán Gabriele D Bigoni-Ordonez miguel Ibanez hernandez Elizabeth Ortiz-Sánchez Subdirección de Investigación Básica Instituto Nacional de CancerologíaMexico City 14080Mexico Departamento de Bioquímica Laboratorio de Terapia GénicaEscuela Nacional de Ciencias BiológicasPosgrado de Biomedicina y Biotecnología MolecularInstituto Politécnico NacionalMexico City 11340Mexico

Cancer is a widespread worldwide chronic disease. In most cases, the high mortality rate from cancer correlates with a lack of clear symptoms, which results in late diagnosis for patients, and consequently, advanced tumor disease with poor probabilities for cure, since many patients will show chemo-and radio-resistance. Several mechanisms have been studied to explain chemo-and radio-resistance to anti-tumor therapies, including cell signaling pathways, anti-apoptotic mechanisms, stemness, metabolism, and cellular phenotypes. Interestingly, the presence of cancer stem cells(CSCs), which are a subset of cells within the tumors, has been related to therapy resistance. In this review, we focus on evaluating the presence of CSCs in different tumors such as breast cancer, gastric cancer, lung cancer, and hematological neoplasias, highlighting studies where CSCs were identified in patient samples. It is evident that there has been a great drive to identify the cell surface phenotypes of CSCs so that they can be used as a tool for anti-tumor therapy treatment design. We also review the potential effect of nanoparticles, drugs, natural compounds, aldehyde dehydrogenase inhibitors, cell signaling inhibitors, and antibodies to treat CSCs from specific tumors. Taken together, we present an overview of the role of CSCs in tumorigenesis and how research is advancing to target these highly tumorigenic cells to improve oncology patient outcomes.

关键词： Cancer Targeted therapy Clinical outcome Drug resistance Cancer stem cells

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European legal framework related to underground mining and tunnelling concerning commission directive (EU) 2017/164, 31 January establishing a fourth list of indicative occupational exposure limit values

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International Journal of Mining Science and Technology 2020年第4期30卷 541-545页

作者： miguel Tato Diogo Department of Mining Engineering Faculty of EngineeringUniversity of PortoPorto 4200-465Portugal

Directive(EU)2017/164 establishes a fourth list of indicative occupational exposure limit values(IOELVs)to protect workers from risks of exposure to hazardous *** states that in underground mining and tunnelling,Member States may benefit from a transitional period regarding IOELVs for nitrogen monoxide,nitrogen dioxide,and carbon monoxide,during which the existing established IOELVs may be *** European Advisory Committee on Health and Safety at Work questions the technical feasibility of the proposed IOELVs in underground mining(CO,NO and NO2)and tunnelling(NO and NO2).Challenges arise concerning the availability of measurement methodologies for compliance with proposed IOELVs(NO2)in underground mining and tunnelling environments.

关键词： Nitrogen monoxide Nitrogen dioxide Carbon monoxide IOELVs European Directive 2017/164 Underground mining Tunnelling

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Diagnosis of breast cancer by analysis of sialic acid concentrations in human saliva by surface-enhanced Raman spectroscopy of silver nanoparticles

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Nano Research 2017年第11期10卷 3662-3670页

作者： Aida hernandez-Arteaga Jose de Jeses Zermeno Nava Eleazar Samuel Kolosovas-Machuca J. Jesus Velazquez-Salazar Ekaterina Vinogradova miguel Jose-Yacaman Hugo Ricardo Navarro-Contreras Coordinacion para la Innovacion y Aplicacion de la Ciencia y la Tecnologia(CIACYT) Universidad Autonoma de San Luis Potosi(A)lvaro Obregon 64 San Luis Potosi S.L.P.78000 Mexico Division de Gineco-Obstetricia Hospital Central Dr.Ignacio Morones Prieto Ave.Venustiano Carranza 2395 Zona Universitaria San Luis Potosi S.L.P.78290 Mexico Department of Physics and Astronomy University of Texas at San Antonio San Antonio TX 78249 USA

Breast cancer is the most common type of malignant tumor among women and their second leading cause of cancer-related *** most common method for screening and diagnosis is ***,two main problems have been ***,the dose of radiation received during the test prevents the method from the use on women who are 〈 40 years ***,there can be mammogram failure owing to the lack of tumor contrast with the fibrous ***,there is a need for screening methods that will help to identify high-risk *** developed a biological marker test that can help to identify *** levels of sialic acid （SA） in saliva are known to correlated with breast *** this study,we evaluated the feasibility of Raman spectroscopy as a method for quantification of SA in saliva,using citrate-reduced silver nanoparticles （cit-Ag-NPs） as a surface-enhanced Raman spectroscopy （SERS） *** of SA was accomplished by measuring its intensity in saliva and comparing it with a calibration curve of SA *** mean SA concentration in saliva was found to be significantly higher among 100 breast cancer patients （18.3 ＆#177; 9.4 mg＆#183;dL-1;mean ＆#177; SD） than among 106 healthy controls （3.5 ＆#177; 1.0 mg＆#183;dL-1）.The SERS test showed sensitivity of 94% and specificity 98% for detection of patients with breast cancer,assuming that SA concentration 〉 7 mg＆#183;dL-1 is a cutoff for positive test *** findings prove the usefulness of this SERS technique as a simple,convenient,and highly sensitive method of quantitative analysis of SA in *** simplicity of this nanotechnological test may help to substantially reduce the mortality among patients with breast cancer by providing women with a simple,noninvasive screening test that can be applied regardless of age or density of breast tissue.

关键词： breast cancer surface-enhanced Raman spectroscopy (SERS) Raman nanoparticles sialic acid

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Endocranial Complications of Endoscopic Sinus Surgery: Learning from Experience

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International Journal of Otolaryngology and Head & Neck Surgery 2014年第5期3卷 298-303页

作者： miguel Armengot-Carceller Rosa hernandez-Sandemetrio ENT Department Surgery Department Valencia University General and University Hospital Valencia Spain ENT Department General and University Hospital Valencia Spain

Objectives: We critically reviewed our experiences in endocranial complications with Functional Endoscopic Sinus Surgery, and investigated the causes, prevention strategies and management. Methods: We conducted a retrospective study of endocranial complications with Functional Endoscopic Sinus Surgery performed during last 10 years in our ENT department. We analyzed endocranial complications, their causes, consequences, treatments and outcomes. Management was performed in collaboration with neurosurgeons and infectious diseases specialists. Results: Of 763 Functional Endoscopic Sinus Surgery procedures, we identified three cases with endocranial complications (0.393%). These complications included: a case of postoperative severe cerebrospinal fluid leak in a patient treated for severe polyposis;a case of cerebral-frontal abscess with delayed clinical manifestation (4 weeks post-surgery) in a patient treated for chronic pansinusitis who experienced difficult surgery for septal spur;and a case of pneumocephalus in a patient treated for allergic fungal sinusitis. The clinical outcome was favorable in all cases. Conclusions: Intra-operative cerebrospinal fluid leak, anatomical deformities (even minimal deformities) and massive inflammatory sinus disease are predisposing factors for endocranial complications with Functional Endoscopic Sinus Surgery. Prognosis can be favorable when therapeutic management is carried out in collaboration with neurosurgeons and infectious disease specialists.

关键词： Cerebral Abscess Cerebrospinal Fluid Leak Inflammatory Sinus Disease Pneumocephalus Polyposis

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Cities and Methods from Complexity Science

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Journal of Systems Science & Complexity 2016年第5期29卷 1177-1186页

作者： BALMACEDA Beatriz FUENTES miguel CIDES Corpotraining Av. Providencia 2370 Santiago Chile Santa Fe Institute 1399 Hyde Park Road Santa Fe New Mexico 87501 USA IIF-Sadaf/CONICET Bulnes 642 Buenos Aires 1176 Argentina Facultad de Ingenieria y Tecnologla Universidad San Sebastidn Lota 2465 Santiago 7510157 Chile

The dynamics of human society is now been studying in the context of the artificial environment created by cities. In this work, the authors describe some of the formal methods used in complexity science to study urban systems. The authors discuss some of the important quantitative approaches on cities paying attention to some of the deepest controversies in present scientific *** authors will stress the importance of a transdisciplinary approach when studying this type of cooperative social environments.

关键词： Cities complexity environment.

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Optical and Structural Properties CdSe： Ni^2＋ Nanocrystals

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材料科学与工程（中英文A版） 2014年第9期4卷 309-314页

作者： Marcial Zamora Tototzintle Martin Lazcano hemandez Arturo Sosa Sanchez Leslie Chaltel Lima Estephani Balderrabano Perdomo MoisesAraiza Garcia miguel Hernadez hemandez Rey Baltazar Lopez Oscar Portillo Moreno Laboratory Materials Science Faculty of Chemical Sciences Autonomous University of Puebla Puebla 72001 Pue Mexico CIDS-ICUAP C. U Puebla M~xico.AutonomousUniversity of Puebla Puebla 72001 Pue Mexico ITSM Campus Puebla Via Atlixcayolt 2301 Col. Reserva Territorial. Atlixcayolt Puebla 72001 Pue Mexico Faculty of Electronic Sciences Autonomous University of Puebla Puebla 72001 Pue Mexico

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