+ - Mihai IRIMIA-VLADU (Austria)

Affiliation: Johannes Kepler University, Linz (Austria)
Scientific Representative at DCCI: Alessandra Operamolla
Visiting Period: 01.07 / 29.07 – 2022

- “Chemical functionalization of materials from lignocellulosic biomass for application in bioelectronics”;
- Participated to the works of the Chemistry for the Future (CFF 2022) Conference;
- Seminar on “The Avenue to “Green” in Organic electronics” held on July 19, 2022;
- Experimental work relative to the extraction of lignin from local biomass;
- Article on “Kraft lignin: from pulping waste to bio-based dielectric polymer for organic field-effect transistors” by D’Orsi, R.; Irimia, C. V.; Lucejko, J. J.; Kahraman, B.; Kanbur, Y.; Yumusak, C.; Bednorz, M.; Babudri, F.; Irimia-Vladu, M.*; Operamolla, A.*
Advanced Sustainable Systems 2022, 6, 2200285. DOI: 10.1002/adsu.202200285.
Link: https://onlinelibrary.wiley.com/doi/epdf/10.1002/adsu.202200285

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+ - Sandra RIVAS SIOTA (Spain)

Affiliation: Universidade de Vigo - Department Ingenieria Quimica, Facultade de Ciencias de Ourense (Spain)
Scientific Representative at DCCI: Claudia Antonetti
Visiting Period: 01.05 / 01.08 – 2022

- Biorefinery strategies for the fractionation of lignocellulosic biomasses and the manufacture of alkyl levulinates;
- Pretreatment of the biomass Eucalyptus globulus using mixtures of water and hydrophobic organic solvents, in order to obtain an aqueous hemicellulosic-rich phase, an organic one containing lignin fragments and a solid residue rich in cellulose.
- Synthesis of long chain alkyl levulinates from the cellulose-rich residue obtained in the pretreatment employing the direct alcoholysis reaction.
- Optimization of the alcoholysis reaction in the perspective of green chemistry in the presence of acid catalysts under sustainable reaction conditions. The effect of main reaction parameters, such as catalyst type and loading, temperature, reaction time and heating methodology, were investigated on the alkyl levulinate yields and concentration.
- Attendance to the Congress “Chemistry for the Future 2022” (CFF 2022);
- Preparation of an article about “Fractionation and complete exploitation of Eucalyptus globulus: synthesis of ethyl, butyl and hexyl levulinates from its cellulose fraction”.

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+ - Sangram Keshari SAMAL (India)

Affiliation: Indian Council of Medical Research (India)
Scientific Representative at DCCI: Dario Puppi
Visiting Period: 22.02 / 11.05 – 2022

- “Engineered Magnetic Bioprinted Scaffolds Encapsulated with Bioactive Molecules for Bone Therapy (EMBSCOT)”;
- Publication of an article on “Bio-nanohybrid Gelatin/Quantum Dots for Cellular Imaging and Biosensing Applications ” by Sangram Keshari Samal, Stefan J. Soenen, Dario Puppi, Karolien De Wael, Sanghamitra Pati, Stefaan De Smedt, Kevin Braeckmans, and Peter Dubruel, International Journal of Molecular Sciences, Int. J. Mol. Sci. 2022, 23(19), 11867; doi: https://doi.org/10.3390/ijms231911867

- - Publication of an article on “Additive Manufacturing of Wet-Spun Polysulfone Medical Implants" by Dario Puppi, Simona Braccini, Antonella Battisti, Antonella Manariti, Gianni Pecorini, and Sangram Keshari Samal, ACS Biomaterials Science & Engineering 2023 9 (9), 5418-5429; doi: 10.1021/acsbiomaterials.3c00711

- Preparation of a paper on “Physical-chemical characterization of naturally-aged chitosan scaffolds by freeze drying” by Sangram Keshari Samal, Simona Braccini, Federica Nardella, Marco Geppi, et al., Dario Puppi to be submitted to Nature Communications
- Preparation of a paper on “Additive manufacturing of magnetic nanoparticles-loaded chitosan scaffolds ” by Dario Puppi, Alessio Gabbani, Francesco Pineider, et al. Sangram Keshari Samal to be submitted to ACS Nano;
- Preparation of a paper on “3D-printing of ulvan-based hydrogels” by Dario Puppi, Gianni Pecorini, Simona Braccini, Sangram Keshari Samal to be submitted to Carbohydrate Polymer;

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+ - Romana SOKOLOVA (CZ)

Affiliation: J. Heyrovský Institute of Physical Chemistry of the Czech Academy of Sciences (CZ)
Scientific Representative at DCCI: Stefania Giannarelli
Visiting Period: 12.09 / 11.10 - 2022

- “Reduction and oxidation mechanism of selected sunscreen formulation (as 2-ethylhexyl 4- methoxycinnamate types) and toxic compounds”;
- Preparation of a paper on “The reductive degradation of eosin, a xanthene dye used on artwork. An electrochemical study” by Francesca Sabatini, Silvia Pizzimenti, Ilaria Degano, Romana Sokolova to be submitted to Electrochimica Acta;
- Preparation of a paper on “Organic UV filter 2-ethylhexyl salicylate photochemical degradation. A spectrophotometric and chromatographic study” by Monica Frangini, Romana Sokolova, Lenka
Belháčová, and Stefania Giannarelli to be submitted to Environmental Pollution;
- Preparation of a paper on “The photochemical degradation of organic UV filter 2-ethylhexyl-4-methoxycinnamate” by Monica Frangini, Lenka Belháčová, Romana Sokolova, and Stefania Giannarelli to be submitted to Science of Total Environmental;

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The internationalization activities at the Department of Chemistry and Industrial Chemistry of the University of Pisa
Via G. Moruzzi, 13 - Pisa, Italy
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