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Absell-Federico-Tena World Trade Historical Database 1948-2020 : Portugal
No full textProject developed by Christopher Absell (University Gothenburg and Instituto Figuerola) Giovanni Federico (New York University Dubai) and Antonio Tena Junguito (Universidad Carlos III de Madrid and Instituto Figuerola). Dataset: Portuga
Surface functionalization of graphene oxide with tannic acid: Covalent vs non-covalent approaches
No full textGraphene oxide (GO) is gaining a lot of interest in material science, biomedicine and biotechnology due to its outstanding physical properties, combined with its surface functionalization capacity, processability in aqueous media and biocompatibility. However, van der Waals forces among GO layers result in aggregation, yet its dispersion, large-scale production, and reinforcing efficiency remain challenging.
In this project, simple and environmentally friendly methods via covalent and non-covalent routes have been developed to exfoliate and prepare surface-functionalized GO nanosheets with tannic acid (TA), a biological macromolecule with antioxidant activity. Four esterification strategies were tested: direct, carbodiimide activated, oxalyl chloride acylation and via an acid-functionalized GO intermediate. The resulting samples
have been extensively characterized to get knowledge on the GO-TA interactions and the degree of grafting, as well as their surface topography, level of hydrophilicity, solubility/dispersibility, thermal and antibacterial properties. The covalent grafting of TA renders the GO surface more hydrophobic, resulting in improved dispersion in organic solvents. Besides, TA acts as a crosslinker between the GO nanosheets,
leading to higher thermal resistance. A synergistic effect of both GO and TA on inhibiting bacterial growth has also been found. The esterification via carbodiimide leads to the highest grafting degree, the best thermal stability and the most effective antibacterial activity. This work not only highlights the great potential of TA for both exfoliation and surface functionalization of GO, but also extends its applications
in biomedicine and for the development of green nanocomposites
Absell-Federico-Tena World Trade Historical Database 1948-2020 : Eritrea
No full textProject developed by Christopher Absell (University Gothenburg and Instituto Figuerola) Giovanni Federico (New York University Dubai) and Antonio Tena Junguito (Universidad Carlos III de Madrid and Instituto Figuerola). Dataset: Eritre
Supplementary Online Material: Neanderthal mobility over very long distances: the case of El Castillo cave (northern Spain) and the “Vasconian” Mousterian.
No full textThis project analyses the origin of the flint used in early MIS 3 and late MIS 4 by the Neanderthals of El Castillo. The results provide provenances of more than 400 km in the south of France and 200 km to the west (central Asturias). This generates a social territory of these Neanderthal groups of about 600 km in length and broadens the knowledge of the exchange networks known to the Neanderthals
Interview in Spain 14
No full textThe reemergence of China is changing the world, and that EU needs to develop a long-term approach based on research-based knowledge in order to engage strategically with an increasingly assertive China.
This dataset consists of a semi-structured interview with a person of Chinese nationality, carried out in Spanish.</p
Absell-Federico-Tena World Trade Historical Database 1948-2020 : Equatorial Guinea
No full textProject developed by Christopher Absell (University Gothenburg and Instituto Figuerola) Giovanni Federico (New York University Dubai) and Antonio Tena Junguito (Universidad Carlos III de Madrid and Instituto Figuerola). Dataset: Equatorial Guine
Interview in Spain 19
No full textThe reemergence of China is changing the world, and that EU needs to develop a long-term approach based on research-based knowledge in order to engage strategically with an increasingly assertive China.
This dataset consists of a semi-structured interview with a person of Chinese nationality, carried out in Chinese and transcribed in Chinese language.</p
Absell-Federico-Tena World Trade Historical Database 1948-2020 : Papua New Guinea
No full textProject developed by Christopher Absell (University Gothenburg and Instituto Figuerola) Giovanni Federico (New York University Dubai) and Antonio Tena Junguito (Universidad Carlos III de Madrid and Instituto Figuerola). Dataset: Papua New Guine
Absell-Federico-Tena World Trade Historical Database 1948-2020 : Netherlands
No full textProject developed by Christopher Absell (University Gothenburg and Instituto Figuerola) Giovanni Federico (New York University Dubai) and Antonio Tena Junguito (Universidad Carlos III de Madrid and Instituto Figuerola). Dataset: Netherland
Absell-Federico-Tena World Trade Historical Database 1948-2020 : Malawi
No full textProject developed by Christopher Absell (University Gothenburg and Instituto Figuerola) Giovanni Federico (New York University Dubai) and Antonio Tena Junguito (Universidad Carlos III de Madrid and Instituto Figuerola). Dataset: Malaw