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325 results on '"de la Torre, Gema"'

1. Empowering European Customers: A Digital Ecosystem for Farm-to-Fork Traceability

Author

Bordel, Borja, Alcarria, Ramón, de la Torre, Gema, Carretero, Isidoro, Robles, Tomás, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Rocha, Álvaro, editor, Ferrás, Carlos, editor, and Ibarra, Waldo, editor

Published
2023
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2. Increasing the Efficiency and Workers Wellbeing in the European Bakery Industry: An Industry 4.0 Case Study

Author

Bordel, Borja, Alcarria, Ramón, de la Torre, Gema, Carretero, Isidoro, Robles, Tomás, Kacprzyk, Janusz, Series Editor, Gomide, Fernando, Advisory Editor, Kaynak, Okyay, Advisory Editor, Liu, Derong, Advisory Editor, Pedrycz, Witold, Advisory Editor, Polycarpou, Marios M., Advisory Editor, Rudas, Imre J., Advisory Editor, Wang, Jun, Advisory Editor, Rocha, Álvaro, editor, Ferrás, Carlos, editor, Méndez Porras, Abel, editor, and Jimenez Delgado, Efren, editor

Published
2022
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10. Acceleration of the Diels‐Alder Reaction between 9‐Functionalized Anthracenes and C60/C70 in the Cavity of a Water Soluble Subphthalocyanine Cage.

Author

Salazar, Ainhoa, Labella, Jorge, Kumar, Sunit, Torres, Tomás, and de la Torre, Gema

Subjects
DIELS-Alder reaction, ANTHRACENE, SOLVATION
Abstract

Herein we report on the acceleration of the Diels‐Alder reaction between a series of 9‐functionalized anthracenes and C60/C70 encapsulated in a water‐soluble metallo‐organic Pd(II)‐subphthalocyanine cage (SubPc‐cage), which performs as a catalytic molecular reactor that provides a beneficial hydrophobic environment. Negatively and positively charged anthracenes do not react either with C60 or C70, due to a favored solvation in water medium and/or to detrimental interactions with positively‐charged Pd(II) corners of SubPc‐cage. Experiments with C60 and C70 rendered parallel results, although C70 proved more reactive, leading to anthracene cycloadducts by reaction in the α bonds. All the results have been rationalized by theoretical calculations at the GFN2‐xTB level. [ABSTRACT FROM AUTHOR]

Published
2024
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11. Subphthalocyanine metallo-organic cage as catalytic molecular photoreactor for the functionalization of fullerenes.

Author

Paramio, Irene, Merino, Paula, Torres, Tomás, and de la Torre, Gema

Subjects
RADICALS (Chemistry), LIGHT absorption, EXCITED states, DIPHENYLAMINE, ENERGY transfer, MOLECULAR capsules
Abstract

Subphthalocyanines (SubPcs) are aromatic chromophores with a bowlshaped structure and outstanding optoelectronic properties. The cavity formed by a C3-symmetry trispyridyl-SubPc, Pd(II)-metalloorganic capsule has proved an optimal, shape-complementary space for the complexation of C60. Taking advantage of the intense green light absorption of the SubPc components of the capsule, and their ability to transfer energy/electrons from the excited state, our group has recently described the unprecedented use of SubPc cages as molecular photoreactors to perform photoredox-triggered addition of diphenylamine radicals over encapsulated C60. Unfortunately, the reaction could only be performed using stoichiometric amounts of the cage due to inhibition of the SubPc cavity by the addition compound. Here, we describe the preparation of a more flexible SubPc cage built with a related C1-symmetry trispyridyl-SubPc (C1-SubPc-cage), which could facilitate the exchange between the complexed addition compound and pristine fullerene, thus allowing to use it in catalytic amounts. After assessing the ability of C1-SubPc-cage to host C60, the addition of α-aminoalkyl radicals in the presence of the cage under green light irradiation was tested. Curiously, optimisation of the reaction conditions (using catalytic amounts of C1-SubPc-cage in diluted solutions) rendered a different reaction outcome, that is, a cyclopropanated fullerene, in remarkably high yields. [ABSTRACT FROM AUTHOR]

Published
2023
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20. Porphyrinoids for Photodynamic Therapy (PDT) and Antimicrobial PDT

Author

Torres, Tomas, primary, Paramio, Irene, additional, Fonseca, Alba, additional, Lahoz, Maria, additional, Dominguez, Ana Belen, additional, Rahali, Asma, additional, Duran-Sampedro, Gonzalo, additional, Garcia-Iglesias, Miguel, additional, De La Torre, Gema, additional, and Rodriguez-Morgade, M. Salome, additional

Published
2021
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21. Single-wall carbon nanotubes bearing covalently linked phthalocyanines - photoinduced electron transfer

Author

Ballesteros, Beatriz, de la Torre, Gema, Ehli, Christian, Rahman, G. M. Aminur, Agullo-Rueda, F., Guldi, Dirk M., and Torres, Tomas

Subjects
Nanotubes -- Optical properties, Nanotubes -- Chemical properties, Phthalocyanins -- Chemical properties, Phthalocyanins -- Optical properties, Electron transport -- Research, Ring formation (Chemistry) -- Research, Chemistry
Abstract

Several approaches that include photoinduced electron transfer are employed to functionalize the single-walled carbon nanotubes, which are normally accompanied by covalently linked phthalocyanine addends. The process also exhibits various phenomenons, like charge-separation and charge-recombination that shows that the radical ion pair product in dimethylformadide is highly stabilized.

Published
2007

27. Phthalocyanines for Photodynamic Therapy

Author

Dominguez, Ana Belen, primary, Fonseca, Alba, additional, Rahali, Asma, additional, Almeida, Veronica, additional, Revuelta, Miguel Angel, additional, de la Escosura, Andres, additional, Rodriguez-Morgade, M. Salome, additional, de la Torre, Gema, additional, Duran, Gonzalo, additional, Garcia-Iglesias, Miguel, additional, and Torres, Tomas, additional

Published
2020
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32. Digital user-industry interactions and Industry 4.0 services to improve customers' experience and satisfaction in the European bakery sector.

Author

Bordel, Borja, Alcarria, Ramón, Robles, Tomás, de la Torre, Gema, and Carretero, Isidoro

Subjects
INDUSTRY 4.0, DIGITAL technology, EMPLOYMENT, SATISFACTION, DATA analysis
Abstract

Future Industry 4.0 is focused on improving production processes through the employment of digital services and technologies. One of the potential approaches to this new paradigm is the creation of information flows across the entire value chain to empower users, increase their knowledge about the product they are buying and feedback producers with data about the customers' opinions, preferences, and recommendations. To allow a transparent path for information in the value chain, new digital platforms and tools are needed to connect users, producers, and suppliers. DEMETER is a European project focused on improving the efficiency of agri-food sector, according to Industry 4.0 principles. In this paper, we are describing the use case of DEMETER project focused on bakery industry. Five different experiments focused on sharing four different information sources, together with the corresponding tools to guarantee the reliability and transparency of that information, are planned. Recently, results from the first experiment have been obtained and are reported in this paper. Results show how users' satisfaction highly increases when enriched and personalized production information about products is available through, for example, mobile applications. In the future, this mechanism will include more information from suppliers and other related agents to analyze if this also represents a relevant increase in the users' satisfaction. [ABSTRACT FROM AUTHOR]

Published
2021

47. Phthalocyanine-pyrene conjugates: a powerful approach toward carbon nanotube solar cells

Author

Bartelmess, Juergen, Campidelli, Stephane, Prato, Maurizio, Torres, Tomas, Guldi, Dirk M., Ballesteros, Beatriz, de la Torre, Gema, and Kiessling, Daniel

Subjects
Phthalocyanins -- Chemical properties, Nanotubes -- Analysis, Zinc compounds -- Chemical properties, Chemistry
Abstract

A new family of pyrene (Py)-substituted phthalocyanines (Pcs), ZnPc-Py and [H.sub.2]Pc-Py, are designed, prepared and analyzed with respect to their spectroscopic properties as well as their interactions with single-wall carbon nanotubes (SWNTs). ZnPc-Py/SWNT and [H.sub.2]Pc-Py/SWNT are integrated into photoactive electrodes, disclosing stable and reproducible photocurrents with large monochromatic internal photoconversion efficiency values for [H.sub.2]Pc-Py/SWNT.

Published
2010

49. Facile decoration of functionalized single-wall carbon nanotubes with phthalocyanines via 'click chemistry'

Author

Campidelli, Stephane, Ballesteros, Beatriz, Filoramo, Arianna, Diaz, David Diaz, de la Torre, Gema, Torres, Tomas, Rahman, G.M. Aminur, Ehli, Christian, Kiessling, Daniel, Werner, Fabian, Sgobba, Vito, Guldi, Dirk M., Cioffl, Carla, Prato, Maurizio, and Bourgoin, Jean-Philippe

Subjects
Nanotubes -- Spectra, Nanotubes -- Chemical properties, Phthalocyanins -- Spectra, Phthalocyanins -- Chemical properties, Zinc compounds -- Spectra, Zinc compounds -- Chemical properties, Chemistry
Abstract

The functionalization of single-wall carbon nanotubes (SWNTs) with 4-(2-trimethylsilyl)ethynylaniline and the subsequent attachment of a zinc-phthalocyanine (ZnPc) derivative is described by using the reliable Huisgen 1,3-dipolar cycloaddition. The SWNT-ZnPc nanoconjugate is examined with a series of steady-state and time-resolved spectroscopy experiments and a photoinduced communication between the two photoactive components are identified.

Published
2008

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