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  1. Article: Photocatalytic Activity of Ag Nanoparticles Deposited on Thermoexfoliated g-C

    Portillo-Cortez, Karina / Caudillo-Flores, Uriel / Sánchez-López, Perla / Smolentseva, Elena / Dominguez, David / Fuentes-Moyado, Sergio

    Nanomaterials (Basel, Switzerland)

    2024  Volume 14, Issue 7

    Abstract: The limited access to fresh water and the increased presence of emergent pollutants (EPs) in wastewater has increased the interest in developing strategies for wastewater remediation, including photocatalysis. Graphitic carbon nitride (g- ... ...

    Abstract The limited access to fresh water and the increased presence of emergent pollutants (EPs) in wastewater has increased the interest in developing strategies for wastewater remediation, including photocatalysis. Graphitic carbon nitride (g-C
    Language English
    Publishing date 2024-04-02
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2662255-5
    ISSN 2079-4991
    ISSN 2079-4991
    DOI 10.3390/nano14070623
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  2. Article ; Online: Encuesta sobre la actividad de los laboratorios de función pulmonar. Efectos durante la pandemia por SARS-CoV-2.

    Vigil Giménez, Laura / Martínez Llorens, Juana / Portillo Carroz, Karina / García García, Rocío / Ortega Ruiz, Francisco / Puente Maestu, Luis

    Open respiratory archives

    2024  Volume 6, Issue 2, Page(s) 100315

    Abstract: Introduction: Following the SARS-CoV-2 pandemic in March 2020, pulmonary function testing (PFT) laboratories underwent a transformation, with a reduction in the number of tests or closure in some cases. The aim of this work was to know the activity of ... ...

    Title translation National Survey on the Activity of Lung Function Laboratories. Effects During the SARS-COV-2 Pandemic.
    Abstract Introduction: Following the SARS-CoV-2 pandemic in March 2020, pulmonary function testing (PFT) laboratories underwent a transformation, with a reduction in the number of tests or closure in some cases. The aim of this work was to know the activity of PFT in Spain and the modification of this activity due to the pandemic.
    Material and methods: A protocolised survey was carried out to members of the PFT laboratories through the Spanish Society of Pneumology and Thoracic Surgery (SEPAR).
    Results: Thirty-nine hospitals in Spain responded. The pulmonary function tests most frequently performed in the PFT laboratories were forced spirometry with bronchodilator test (100%), body plethysmography (97.4%), CO transfer capacity (97.4%), respiratory muscle strength measured in the mouth (97.4%), 6-minute walking test (94.7%), measurement of exhaled fraction of nitric oxide (92.3%) and incremental exercise test (71.8%).The pandemic led to a significant decrease in the number of tests (35.4%) during 2020 with subsequent recovery in 2021, without reaching pre-pandemic values.The most important changes were increased examination times, working with personal protective equipment and ventilation of the rooms. The performance of the nasopharyngeal swab for SARS-CoV2 testing prior to the tests was not homogeneous in the PFT laboratories.
    Conclusions: Most hospitals are sufficiently equipped to perform the most common pulmonary function tests. The pandemic resulted in a loss of activity in all hospitals.
    Language Spanish
    Publishing date 2024-03-16
    Publishing country Spain
    Document type English Abstract ; Journal Article
    ISSN 2659-6636
    ISSN (online) 2659-6636
    DOI 10.1016/j.opresp.2024.100315
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  3. Article ; Online: Innovative knee surgery: arthroscopic double bundle U-DOS reverse Technique for PCL tears.

    Hernández-Aragón, Fernando / González-González, Fernando / Aguirre-Madrid, Arturo / Portillo-Ortiz, Nadia Karina / Muñoz-Cabello, Raymundo Alfonso / Berumen-Nafarrate, Edmundo

    Journal of ISAKOS : joint disorders & orthopaedic sports medicine

    2023  Volume 8, Issue 6, Page(s) 509–512

    Abstract: The Double Bundle U-DOS Reverse Technique for posterior cruciate ligament (PCL) tears is a novel arthroscopic technique that combines two well-known procedures: the mono-tunnel approach and the medial-portal approach, provides better posterior stability, ...

    Abstract The Double Bundle U-DOS Reverse Technique for posterior cruciate ligament (PCL) tears is a novel arthroscopic technique that combines two well-known procedures: the mono-tunnel approach and the medial-portal approach, provides better posterior stability, improved functional outcomes, and a reduced risk of posterior tibial subluxation. This technique allows for the simultaneous treatment of anterolateral and posteromedial bundles and has been successfully performed on 16 patients, with follow-up showing sufficient support and resistance to posterior tibial subluxation or excessive displacement, resulting in a stable knee joint.
    MeSH term(s) Humans ; Posterior Cruciate Ligament/surgery ; Posterior Cruciate Ligament/injuries ; Knee Joint/surgery ; Orthopedic Procedures/methods ; Tibia/surgery ; Knee Injuries/surgery ; Sprains and Strains/surgery ; Joint Instability/surgery ; Soft Tissue Injuries/surgery
    Language English
    Publishing date 2023-08-09
    Publishing country England
    Document type Video-Audio Media
    ISSN 2059-7762
    ISSN (online) 2059-7762
    DOI 10.1016/j.jisako.2023.08.002
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  4. Article ; Online: N719 Derivatives for Application in a Dye-Sensitized Solar Cell (DSSC): A Theoretical Study.

    Portillo-Cortez, Karina / Martínez, Ana / Dutt, Ateet / Santana, Guillermo

    The journal of physical chemistry. A

    2019  Volume 123, Issue 51, Page(s) 10930–10939

    Abstract: The primary goal of this investigation is to analyze the influence of the chemical modifications on the electronic structures of N719 derivatives for their use in dye-sensitized solar cells (DSSCs), by employing density functional theory. UV-vis spectra ... ...

    Abstract The primary goal of this investigation is to analyze the influence of the chemical modifications on the electronic structures of N719 derivatives for their use in dye-sensitized solar cells (DSSCs), by employing density functional theory. UV-vis spectra indicate that the electronic configurations are essential to study the absorption of solar irradiation and analyze the charge-transport mechanism between the electron-transport layer (ETL), the electrolyte, and the dye. Open- and closed-shell electronic configurations are related to the absorption and the excitation energies of the dye. According to the results reported here, it is possible to say that the best candidates are N719, N719-2, N719-7, and N719-8 (neutral and dianionic). They may be used as useful dye sensitizers due to their band gap and band alignment with the ETL, which contributes to having an effective charge transport during the functioning of the solar device. Another parameter that is reported in this investigation is the light-harvesting efficiency for all studied systems. This could help to improve the performance of the device, since there is an increment in the generation of charge carriers. These results could be useful as a guide for experimental investigations on chemical modifications of these sensitizers.
    Language English
    Publishing date 2019-12-13
    Publishing country United States
    Document type Journal Article
    ISSN 1520-5215
    ISSN (online) 1520-5215
    DOI 10.1021/acs.jpca.9b09024
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  5. Article ; Online: Hepatopulmonary Syndrome and Diffuse Interstitial Lung Disease: An Unusual Combination.

    Rodriguez-Pons, Laura / Prats, Marisol / Guasch-Arriaga, Ignasi / Portillo, Karina

    Archivos de bronconeumologia

    2018  Volume 54, Issue 11, Page(s) 582–584

    Title translation Síndrome hepatopulmonar y enfermedad pulmonar intersticial difusa: una asociación poco conocida.
    MeSH term(s) Aged ; Female ; Hepatopulmonary Syndrome/complications ; Humans ; Lung Diseases, Interstitial/complications ; Male
    Language Spanish
    Publishing date 2018-03-24
    Document type Case Reports ; Letter
    ZDB-ID 733126-5
    ISSN 1579-2129 ; 0300-2896
    ISSN (online) 1579-2129
    ISSN 0300-2896
    DOI 10.1016/j.arbres.2018.02.016
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  6. Article: ZnO Nanowires/N719 Dye With Different Aspect Ratio as a Possible Photoelectrode for Dye-Sensitized Solar Cells.

    Portillo-Cortez, Karina / Martínez, Ana / Bizarro, Monserrat / García-Sánchez, Mario F / Güell, Frank / Dutt, Ateet / Santana, Guillermo

    Frontiers in chemistry

    2021  Volume 8, Page(s) 604092

    Abstract: The vapor-liquid-solid (VLS) process was applied to fabricate zinc oxide nanowires (ZnO NWs) with a different aspect ratio (AR), morphological, and optical properties. The ZnO NWs were grown on a system that contains a quartz substrate with transparent ... ...

    Abstract The vapor-liquid-solid (VLS) process was applied to fabricate zinc oxide nanowires (ZnO NWs) with a different aspect ratio (AR), morphological, and optical properties. The ZnO NWs were grown on a system that contains a quartz substrate with transparent conductive oxide (TCO) thin film followed by an Al-doped ZnO (AZO) seed layer; both films were grown by magnetron sputtering at room temperature. It was found that the ZnO NWs presented high crystalline quality and vertical orientation from different structural and morphological characterizations. Also, NWs showed a good density distribution of 69 NWs/μm
    Language English
    Publishing date 2021-02-02
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2711776-5
    ISSN 2296-2646
    ISSN 2296-2646
    DOI 10.3389/fchem.2020.604092
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  7. Article: Noncontiguous Multifocal Spondylodiscitis in 3 Regions of the Spine.

    González, Fernando González / Madrid, Arturo Aguirre / Pedroza, Dizán Mendoza / Solis, Abelardo Loya / Aragon, Fernando Hernández / Ortiz, Nadia Karina Portillo / Nafarrate, Edmundo Berumen

    Case reports in orthopedics

    2022  Volume 2022, Page(s) 2091676

    Abstract: Spondylodiscitis is an uncommon infectious disease of the spine, usually presenting in 1 or 2 contiguous levels, associated with risk factors such as diabetes, intravenous drugs, corticosteroids, and invasive procedures. The most common presentation is ... ...

    Abstract Spondylodiscitis is an uncommon infectious disease of the spine, usually presenting in 1 or 2 contiguous levels, associated with risk factors such as diabetes, intravenous drugs, corticosteroids, and invasive procedures. The most common presentation is pain with nonspecific systemic manifestations. Diagnosis relies on clinical suspicion, laboratories, and imaging studies. Urgent treatment is important due to the high morbid mortality associated with sepsis or a fulminant disease course. We report the case of a 39-year-old female diagnosed with noncontiguous multifocal spondylodiscitis, in the cervical, thoracic, and lumbar spine. The patient initially presented with back pain, inability to walk and severe neurological deficit in the upper and lower extremities, upon diagnosis broad-spectrum antibiotics were initiated. A staged surgical approach was performed in the 3 spine segments. During the 6 month follow-up, the patient presented walking with assistance, with the recovery of strength in the upper and lower extremities.
    Language English
    Publishing date 2022-11-26
    Publishing country United States
    Document type Case Reports
    ZDB-ID 2684648-2
    ISSN 2090-6757 ; 2090-6749
    ISSN (online) 2090-6757
    ISSN 2090-6749
    DOI 10.1155/2022/2091676
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  8. Article ; Online: ZnO Nanowires/N719 Dye With Different Aspect Ratio as a Possible Photoelectrode for Dye-Sensitized Solar Cells

    Karina Portillo-Cortez / Ana Martínez / Monserrat Bizarro / Mario F. García-Sánchez / Frank Güell / Ateet Dutt / Guillermo Santana

    Frontiers in Chemistry, Vol

    2021  Volume 8

    Abstract: The vapor-liquid-solid (VLS) process was applied to fabricate zinc oxide nanowires (ZnO NWs) with a different aspect ratio (AR), morphological, and optical properties. The ZnO NWs were grown on a system that contains a quartz substrate with transparent ... ...

    Abstract The vapor-liquid-solid (VLS) process was applied to fabricate zinc oxide nanowires (ZnO NWs) with a different aspect ratio (AR), morphological, and optical properties. The ZnO NWs were grown on a system that contains a quartz substrate with transparent conductive oxide (TCO) thin film followed by an Al-doped ZnO (AZO) seed layer; both films were grown by magnetron sputtering at room temperature. It was found that the ZnO NWs presented high crystalline quality and vertical orientation from different structural and morphological characterizations. Also, NWs showed a good density distribution of 69 NWs/μm2 with a different AR that offers their capability to be used as possible photoelectrode (anode) in potential future device applications. The samples optical properties were studied using various techniques such as photoluminescence (PL), absorption, and transmittance before and after sensitization with N719 dye. The results demonstrated that NW with 30 nm diameter had the best characteristics as feasible photoelectrode (anode) (high absorption, minimum recombination, high crystallinity). Also, the present samples optical properties were found to be improved due to the existence of N719 dye and Au nanoparticles on the tip of NWs. NWs grown in this work can be used in different photonic and optoelectronic applications.
    Keywords ZnO nanowires ; high aspect ratio ; dye-sensitized solar cell ; N719 dye ; Au nanoparticles ; absorption spectra ; Chemistry ; QD1-999
    Subject code 620
    Language English
    Publishing date 2021-02-01T00:00:00Z
    Publisher Frontiers Media S.A.
    Document type Article ; Online
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  9. Article: Spontaneous Recovery of Paraplegia in a Polytrauma Patient following Spinal Cord Ischemia due to Type B Traumatic Aortic Dissection.

    Jurado, Pedro Ramos / Aragón, Fernando Hernández / González, Víctor Aaron Miranda / Silva, Jesús Antonio Loya / Gutiérrez, Edgar Azael Pérez / Ortiz, Nadia Karina Portillo / Vázquez, Adriana Cristina Quintana / Venzor, Luisa Fernanda Trujillo / Aponte, Eduardo Enrique Gámez / Madrid, Arturo Aguirre / Nafarrate, Edmundo Berumen

    Case reports in orthopedics

    2023  Volume 2023, Page(s) 8918724

    Abstract: Aortic dissection is a life-threatening acute condition characterized by the separation of the aortic wall's layers. It is caused by a tear in the internal vascular wall (intimal layer and middle layer), which results in bleeding between the layers and ... ...

    Abstract Aortic dissection is a life-threatening acute condition characterized by the separation of the aortic wall's layers. It is caused by a tear in the internal vascular wall (intimal layer and middle layer), which results in bleeding between the layers and causes abrupt and excruciating pain. The appropriate consideration must be given to the condition's dynamic nature, and variations in clinical presentation, without neglecting the urgency for intervention. In this case study, a 65-year-old male engaged in a car accident is admitted to urgent care with a traumatic aortic dissection diagnosis that included the aortic arch, a segmental exposed fracture of 1/3 distal of the right femur AO 32C3k, and an intertrochanteric fracture AO 31A1.3. The patient developed transient paraplegia as the initial manifestation of acute aortic dissection, which represents a high mortality and morbidity entity without adequate and prompt treatment, and prompt diagnosis and management were critical. A patient with severe thoracic and abdominal trauma caused by high-energy injury should be properly evaluated for the possibility of traumatic aortic dissection. The endovascular aortic repair was performed, resulting in a positive clinical evolution due to the important participation of the multidisciplinary trauma team involved in patient management and prompted decision-making.
    Language English
    Publishing date 2023-08-11
    Publishing country United States
    Document type Case Reports
    ZDB-ID 2684648-2
    ISSN 2090-6757 ; 2090-6749
    ISSN (online) 2090-6757
    ISSN 2090-6749
    DOI 10.1155/2023/8918724
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  10. Article ; Online: Combined Pulmonary Fibrosis and Emphysema Syndrome

    Karina Portillo / Josep Morera

    Pulmonary Medicine, Vol

    A New Phenotype within the Spectrum of Smoking-Related Interstitial Lung Disease

    2012  Volume 2012

    Keywords Internal medicine ; RC31-1245 ; Medicine ; R ; DOAJ:Internal medicine ; DOAJ:Medicine (General) ; DOAJ:Health Sciences
    Language English
    Publishing date 2012-01-01T00:00:00Z
    Publisher Hindawi Publishing Corporation
    Document type Article ; Online
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