Nanotechnology for social needs: contributions from Latin American research in the areas of health, energy and water

Invernizzi, Noela; Foladori, Guillermo; Belmont, Eduardo Robles; Lau, Edgar Záyago; Figueroa, Edgar Arteaga; Bagattolli, Carolina; Carrozza, Tomás Javier; Chiancone, Adriana; Urquijo, William

doi:10.1007/s11051-015-3037-y

Cited by 12 publications

(9 citation statements)

References 16 publications

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“…Science Citation Index EXPANDED (SCI EXPANDED) was the most important and frequently used source database for an overview of scientific production. Bibliometric methods have been used to assess the scientific outputs of nano-technology field, such as global nanobiotechnology research (Karpagam 2014), carbon nanostructures (Terekhov 2015), nanofiltration membrane technology (Zhai et al 2014), and nanotechnology for social needs: contributions from Latin American research in the areas of health, energy and water (Invernizzi et al 2015). In addition, research patterns including journals, categories, countries, and institutes, as well as the international cooperation had been broadly applied Wang et al 2015;Zheng et al 2015a).…”

Section: Introductionmentioning

confidence: 99%

A bibliometric analysis of micro/nano-bubble related research: current trends, present application, and future prospects

Zheng

Wang

et al. 2016

Scientometrics

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With great versatile characteristics, micro/nano-bubble related research have attracted much attention due to their extensive applications in the last half century.Researchers not merely focus on their physi-chemical properties, but also aim at their wellcontrolled generation methods and potential adhibition field. It can be expected that the future prospects of micro/nano-bubble related research will be tremendous and that there will be even more to be explored. In this case study, a bibliometric analysis was conducted to evaluate micro/nano-bubble related research from 1991 to 2014, based on the Science Citation Index EXPANDED database. The Ultrasound in Medicine and Biology with the highest h-index of 56 is the leading journal in this field, publishing 6.9 % of articles over this period, followed by Langmuir and Journal of the Acoustical Society of America. USA and the Univ Toronto, Canada were the most productive country and institution, respectively, while the USA, was the most internationally collaborative and had the highest hindex (111) of all countries. A new method named ''word cluster analysis'' was successfully applied to trace the research hotspots. Innovation in detection means and novel pathways for medical applications via micro/nano-bubble is considered to relate to the Electronic supplementary material The online version of this article

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Section: Introductionmentioning

confidence: 99%

A bibliometric analysis of micro/nano-bubble related research: current trends, present application, and future prospects

Zheng

Wang

et al. 2016

Scientometrics

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“…Figura 7. Análisis de la nanotecnología a través de la cadena de valor Fuente: adaptado de Holman, 2007;Lux Research, 2004y Foladori et al, 2016 Asimismo, el desarrollo de las tecnologías convergentes ha traído una serie de implicaciones sociales, económicas, éticas, entre otras, que han sido objeto de debates y de resaltar la necesidad de tener esquemas de regulación y de gobernanza (Bainbridge y Roco, 2016;Invernizzi et al, 2015;Roco, 2008;Roco, Bainbridge, Tonn, y Whitesides, 2013). Estos trabajos que han discutido la promoción de la convergencia tecnológica de las NBIC pueden ser considerados como un punto de referencia de los estudios sobre las tecnologías convergentes; estudios que por cierto han presentado la convergencia como un proceso necesario e irreversible que está ocurriendo desde los laboratorios científicos hasta las industrias y los mercados.…”

Section: Computaciónunclassified

Measuring innovation in the context of emerging and converging technologies: some methodological reflections

Rosales

Belmont

2020

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ResumenLas tecnologías emergentes han sido comúnmente analizadas desde la perspectiva teórica de los sistemas de innovación. Esto ha significado partir de la premisa de que el desarrollo, uso, difusión y explotación de la tecnología son comportamientos similares a los que exhibe cualquier otro sector económico tradicional. Pero esto omite el hecho de que las tecnologías emergentes tienen particularidades que van desde las características de los actores involucrados, los derechos de propiedad, las dinámicas sociales, tecnológicas, económicas e institucionales en las que se ven insertas, hasta la propia definición metodológica del objeto de estudio. Lo anterior sin obviar las dificultades de acceso y categorización de la información, dado que en todos los casos que aquí se tratan, las tecnologías emergentes son transversales a muy distintos sectores económicos y, por tanto, su uso y aplicación se diversifica en diferentes procesos, productos y servicios. Este artículo tiene por objetivo presentar una reflexión acerca de las posibles alternativas metodológicas no exhaustivas para el estudio de las tecnologías emergentes o convergentes, Marcela Amaro Rosales, Eduardo Robles Belmont como la biotecnología, la nanotecnología, las tecnologías de la información y la genómica, entre otras, así como discutir la pertinencia de usar el marco de análisis de los sistemas de innovación, sin que esto signifique desechar su aplicación, sino más bien establecer esquemas complementarios que nos ayuden a tener una mejor comprensión de la dinámica y evolución de dichas tecnologías. Palabras claveInnovación, tecnologías emergentes, convergencia tecnológica, indicadores de ciencia y tecnología AbstractEmerging technologies have been analyzed from the innovation systems theoretical approach. This has meant starting from the premise that the development, use, dissemination and exploitation of technology are similar behaviors that exhibit any other traditional economic sector. However, this omits the fact that emerging technologies have particularities that range from the characteristics of the parties involved, the property rights, the social, technological and institutional dynamics in which they are involved; even the methodological definition of the object of study. This without forgetting the difficulties of access and categorization of information, as in all cases discussed here, emerging technologies cut across many different economic sectors and therefore its use and application diversifies into different process, products and services. This article aims to present a reflection on the possible non-exhaustive methodological alternatives for the study of emerging and/or convergent technologies, such as biotechnology, nanotechnology, information technologies and genomics, among others, as well as to discuss the relevance of using the framework for the analysis of innovation systems. Without this means discarding its application, but rather establishing complementary schemes that help us have a better understanding of the dynamics and ...

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“…Um aperfeiçoamento tem sido apresentado para a síntese de nanomagnetitas com sais precursores de cloreto férrico (FeCl3), sulfato ferroso (FeSO4.7H2O) e hidróxido de sódio (NaOH) para controlar o valor do pH 12, sendo a novidade uma adaptação de agitação por ultrassom (DA FONSECA-ZANG et al, 2014). Invernizzi et al (2015) revisaram em seu artigo publicações científicas e grupos de pesquisa na América Latina que pesquisam sobre nanotecnologia aplicada às áreas de medicina, energia e água, extensões relevantes para atender às necessidades sociais dos países em desenvolvimento. O artigo mostra que os países da América Latina incorporaram essas áreas às suas agendas de nanotecnologia, mas, essas capacidades estão concentradas no Brasil e no México, e ainda que as redes regionais de cooperação são ainda vulneráveis.…”

Section: Introductionunclassified

Síntese, caracterização e estabilidade de nanopartículas de magnetita

Coltro¹,

Fonseca-Zang²,

Zang³

et al. 2021

Lat. Americ. J. of Develop.

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Nanopartículas de ferro são muito utilizadas em diversas áreas de pesquisa. O elemento químico ferro (Fe), sendo o quarto elemento mais abundante na crosta terrestre, e a substância mineral magnetita, com propriedade magnética, apresentam aplicações nas áreas industrial, ambiental, biomédica e de novas tecnologias. Este trabalho apresenta processo de síntese de nanopartículas partindo-se de sais precursores, bem como a caracterização dos produtos e as rotas para estabilizá-los. Os sais químicos precursores utilizados foram o cloreto férrico (FeCl3) e o sulfato ferroso (FeSO4) na proporção de 2:1, sob agitação por ultrassom e pH ácido. Para formação do precipitado de nanopartículas usou-se solução aquosa de hidróxido de sódio (NaOH) de pH 12. A difratometria de raio-X, mostra a presença de magnetita (Fe3O4) indicada pelos picos característicos de difração em graus 2Ө = 18° (largo), 31° (fino), 36° (bem definido), 43,4°, 45°, 53,6°, 57,7°, 63,3°. A microscopia eletrônica de transmissão mostra a morfologia dos produtos da síntese. Fatores que influenciam a estabilidade das partículas são agitação, o ajuste de pH, condições de secagem. O tamanho médio das nanopartículas de magnetitas é de aproximadamente 15 nm. Iron nanoparticles are widely used in several research areas. The chemical element iron (Fe), being the fourth most abundant element in the earth's crust, and the mineral substance magnetite, with magnetic properties, have applications in industrial, environmental, biomedical, and new technology areas. This work presents the process of synthesis of nanoparticles starting from precursor salts, as well as the characterization of the products and the routes to stabilize them. The precursor chemical salts were ferric chloride (FeCl3) and ferrous sulfate (FeSO4) in a 2:1 ratio, under ultrasound agitation and acidic pH. For the nanoparticles growth was applied aqueous solution of sodium hydroxide (NaOH) at pH 12. X-ray diffraction shows the presence of magnetite (Fe3O4) indicated by characteristic diffraction peaks in degrees 2Ө = 18° (wide), 31° (fine), 36° (well defined), 43.4°, 45°, 53.6°, 57.7°, 63.3°. Scanning electron microscopy shows the morphology of the synthesis products. Factors that influence the stability of the particles are agitation, the pH adjustment, and the conditions of drying. The average size of the magnetite nanoparticles is approximately 15 nm.

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Nanotechnology for social needs: contributions from Latin American research in the areas of health, energy and water

Cited by 12 publications

References 16 publications

A bibliometric analysis of micro/nano-bubble related research: current trends, present application, and future prospects

A bibliometric analysis of micro/nano-bubble related research: current trends, present application, and future prospects

Measuring innovation in the context of emerging and converging technologies: some methodological reflections

Síntese, caracterização e estabilidade de nanopartículas de magnetita

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