{"id":3815,"date":"2023-02-17T18:24:26","date_gmt":"2023-02-17T16:24:26","guid":{"rendered":"https:\/\/marte.i3a.es\/?p=3815"},"modified":"2023-04-11T12:48:51","modified_gmt":"2023-04-11T10:48:51","slug":"flavio-venancio-nakadi","status":"publish","type":"post","link":"https:\/\/marte.i3a.es\/es\/flavio-venancio-nakadi\/","title":{"rendered":"Fl\u00e1vio Ven\u00e2ncio Nakadi"},"content":{"rendered":"
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    Investigadores<\/a><\/h3>\n

    Fl\u00e1vio Ven\u00e2ncio Nakadi<\/strong><\/h1>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<\/li>\n\t\t<\/ul>\t\t\t\t
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      Tel\u00e9fono:<\/strong> +34 876 553 510<\/p>\n

      Email:<\/strong> fvnakadi@unizar.es<\/a><\/p>\n

      Direcci\u00f3n:<\/strong> c\/Pedro Cerbuna 12, Universidad de Zaragoza, Facultad de Ciencias, Departamento de Qu\u00edmica Anal\u00edtica \u2013 Zaragoza (Espa\u00f1a)<\/p>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div>\n\n

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      Mi experiencia en investigaci\u00f3n se basa en el desarrollo de m\u00e9todos anal\u00edticos para la determinaci\u00f3n elemental en diferentes matrices, con enfoque en solucionar dificultades encontradas en la academia, empresas y en contextos multidisciplinares. Tengo experiencia en la espectrometr\u00eda de absorci\u00f3n at\u00f3mica convencional (AAS), principalmente con horno de grafito (GF) como atomizador. Destaco la t\u00e9cnica AAS de alta resoluci\u00f3n y fuente cont\u00ednua con GF (HR CS GFAAS<\/strong>), tambi\u00e9n con la detecci\u00f3n de mol\u00e9culas diat\u00f3micas (HR CS GFMAS<\/strong>)para determinaci\u00f3n elemental e isot\u00f3pica como mi especialidad. Trabajo tambi\u00e9n con las t\u00e9cnicas anal\u00edticas de plasma de acoplamiento inductivo con detecci\u00f3n por espectrometr\u00eda de masas (ICP-MS<\/strong>) de modo directo, con microinyecci\u00f3n y acoplado a un l\u00e1ser (LA-ICP-MS<\/strong>), que tambi\u00e9n puede ser usado como espectroscopia de plasma inducido por l\u00e1ser (LIBS<\/strong>).<\/p>\n

      Desde 2015: i) he codirigido 1 tesis doctoral (Universidade de S\u00e3o Paulo - Brasil); ii) he participado en 26 publicaciones indexadas (21 en Q1), adem\u00e1s de 1 cap\u00edtulo de libros (editado por Cengage); iii) he presentado 10 comunicaciones a conferencias nacionales\/internacionales. (actualizado el 11 de abril de 2023).<\/p>\n<\/div>\n<\/div><\/div><\/div><\/div><\/div>

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      19 registros<\/span> «<\/a> ‹<\/a> 1 de 4 ›<\/a> »<\/a> <\/div><\/div>

      2025<\/h3>

      Rua-Ibarz, Ana; Nakadi, Fl\u00e1vio V.; Bolea-Fernandez, Eduardo; Bazo, Antonio; Battistella, Beatrice; Matiushkina, Anna; Resch-Genger, Ute; Abad, Carlos; Resano, Mart\u00edn<\/p>

      Discrete Entity Analysis via Microwave-Induced Nitrogen Plasma\u2013Mass Spectrometry in Single-Event Mode<\/a> Art\u00edculo de revista<\/span> <\/p>

      En: <\/span>Analytical Chemistry, <\/span>vol. 0, <\/span>no 0, <\/span>pp. null, <\/span>2025<\/span>, (PMID: 41084806)<\/span>.<\/p>

      Resumen<\/a><\/span> | Enlaces<\/a><\/span> | BibTeX<\/a><\/span><\/p>

      @article{,
      \r\ntitle = {Discrete Entity Analysis via Microwave-Induced Nitrogen Plasma\u2013Mass Spectrometry in Single-Event Mode},
      \r\nauthor = {Ana Rua-Ibarz and Fl\u00e1vio V. Nakadi and Eduardo Bolea-Fernandez and Antonio Bazo and Beatrice Battistella and Anna Matiushkina and Ute Resch-Genger and Carlos Abad and Mart\u00edn Resano},
      \r\nurl = {https:\/\/doi.org\/10.1021\/acs.analchem.5c04341},
      \r\ndoi = {10.1021\/acs.analchem.5c04341},
      \r\nyear  = {2025},
      \r\ndate = {2025-10-14},
      \r\nurldate = {2025-10-14},
      \r\njournal = {Analytical Chemistry},
      \r\nvolume = {0},
      \r\nnumber = {0},
      \r\npages = {null},
      \r\nabstract = {In this work, single-event microwave-induced nitrogen plasma\u2013mass spectrometry (single-event MINP-MS) was evaluated for the first time for the analysis of discrete entities such as nanoparticles, biological cells, and microplastics. Nitrogen (N2) effectively overcomes Ar-based polyatomic interferences, enabling (ultra)trace element determination of Fe and Se using their most abundant isotopes, 56Fe (91.66%) and 80Se (49.82%). Iron oxide nanoparticles (Fe2O3 NPs) ranging from 20 to 70 nm were accurately characterized, with excellent agreement with established sizing techniques, such as transmission electron microscopy (TEM) and dynamic light scattering (DLS). A limit of detection (LoD) of 8.6 ag for Fe\u2500equivalent to an LoDsize of 19 nm for Fe2O3\u2500was achieved, which is significantly lower than recent values reported for high-end quadrupole-based ICP-MS. Selenium nanoparticles (SeNPs) of 150 and 250 nm were also accurately characterized, without the N2-based plasma experiencing issues handling relatively large metallic NPs (linearity, R2 = 0.9994). Se-enriched yeast cells (SELM-1 certified reference material) were successfully analyzed via single-cell MINP-MS using external calibration based on SeNPs and a transport efficiency-independent approach. In addition, 2\u20133 \u03bcm polystyrene (PS) and polytetrafluoroethylene (PTFE) were accurately sized by monitoring 12C+, confirming the method\u2019s suitability for handling micrometer-sized polymeric materials (microplastics). The average duration of individual events (680 \u00b1 160 \u03bcs) suggests that the digestion of individual entities in N2-based plasmas is comparable to that in Ar-based plasmas. These results open new avenues for this instrumentation as an alternative to ICP ionization sources, also in the context of discrete entity analysis.},
      \r\nnote = {PMID: 41084806},
      \r\nkeywords = {},
      \r\npubstate = {published},
      \r\ntppubtype = {article}
      \r\n}
      \r\n<\/pre><\/div>
      Cerrar<\/a><\/p><\/div>
      In this work, single-event microwave-induced nitrogen plasma\u2013mass spectrometry (single-event MINP-MS) was evaluated for the first time for the analysis of discrete entities such as nanoparticles, biological cells, and microplastics. Nitrogen (N2) effectively overcomes Ar-based polyatomic interferences, enabling (ultra)trace element determination of Fe and Se using their most abundant isotopes, 56Fe (91.66%) and 80Se (49.82%). Iron oxide nanoparticles (Fe2O3 NPs) ranging from 20 to 70 nm were accurately characterized, with excellent agreement with established sizing techniques, such as transmission electron microscopy (TEM) and dynamic light scattering (DLS). A limit of detection (LoD) of 8.6 ag for Fe\u2500equivalent to an LoDsize of 19 nm for Fe2O3\u2500was achieved, which is significantly lower than recent values reported for high-end quadrupole-based ICP-MS. Selenium nanoparticles (SeNPs) of 150 and 250 nm were also accurately characterized, without the N2-based plasma experiencing issues handling relatively large metallic NPs (linearity, R2 = 0.9994). Se-enriched yeast cells (SELM-1 certified reference material) were successfully analyzed via single-cell MINP-MS using external calibration based on SeNPs and a transport efficiency-independent approach. In addition, 2\u20133 \u03bcm polystyrene (PS) and polytetrafluoroethylene (PTFE) were accurately sized by monitoring 12C+, confirming the method\u2019s suitability for handling micrometer-sized polymeric materials (microplastics). The average duration of individual events (680 \u00b1 160 \u03bcs) suggests that the digestion of individual entities in N2-based plasmas is comparable to that in Ar-based plasmas. These results open new avenues for this instrumentation as an alternative to ICP ionization sources, also in the context of discrete entity analysis.<\/div>
      Cerrar<\/a><\/p><\/div>