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  1. Article ; Online: Electron Transfer at Quantum Dot-Metal Oxide Interfaces for Solar Energy Conversion.

    Ballabio, Marco / Cánovas, Enrique

    ACS nanoscience Au

    2022  Volume 2, Issue 5, Page(s) 367–395

    Abstract: Electron transfer at a donor-acceptor quantum dot-metal oxide interface is a process fundamentally relevant to solar energy conversion architectures as, e.g., sensitized solar cells and solar fuels schemes. As kinetic competition at these technologically ...

    Abstract Electron transfer at a donor-acceptor quantum dot-metal oxide interface is a process fundamentally relevant to solar energy conversion architectures as, e.g., sensitized solar cells and solar fuels schemes. As kinetic competition at these technologically relevant interfaces largely determines device performance, this Review surveys several aspects linking electron transfer dynamics and device efficiency; this correlation is done for systems aiming for efficiencies up to and above the ∼33% efficiency limit set by Shockley and Queisser for single gap devices. Furthermore, we critically comment on common pitfalls associated with the interpretation of kinetic data obtained from current methodologies and experimental approaches, and finally, we highlight works that, to our judgment, have contributed to a better understanding of the fundamentals governing electron transfer at quantum dot-metal oxide interfaces.
    Language English
    Publishing date 2022-06-22
    Publishing country United States
    Document type Journal Article ; Review
    ISSN 2694-2496
    ISSN (online) 2694-2496
    DOI 10.1021/acsnanoscienceau.2c00015
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Laparoscopic en bloc resection of T4b splenic flexure cancer with infiltration of the stomach and tail of the pancreas - a video vignette.

    Ballabio, M / Boni, L / Baldari, L / Cassinotti, E

    Colorectal disease : the official journal of the Association of Coloproctology of Great Britain and Ireland

    2019  Volume 22, Issue 2, Page(s) 225–226

    MeSH term(s) Adenocarcinoma/pathology ; Adenocarcinoma/surgery ; Aged ; Colectomy/methods ; Colon, Transverse/pathology ; Colon, Transverse/surgery ; Colonic Neoplasms/pathology ; Colonic Neoplasms/surgery ; Humans ; Laparoscopy/methods ; Male ; Neoplasm Invasiveness ; Pancreas/pathology ; Pancreas/surgery ; Stomach/pathology ; Stomach/surgery
    Language English
    Publishing date 2019-10-15
    Publishing country England
    Document type Case Reports ; Letter ; Video-Audio Media
    ZDB-ID 1440017-0
    ISSN 1463-1318 ; 1462-8910
    ISSN (online) 1463-1318
    ISSN 1462-8910
    DOI 10.1111/codi.14861
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 5799: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
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    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)

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  3. Article ; Online: Cost saving in implementing ERAS protocol in emergency abdominal surgery.

    Bisagni, Pietro / D'Abrosca, Vera / Tripodi, Vincenzo / Armao, Francesca Teodora / Longhi, Marco / Russo, Gianluca / Ballabio, Michele

    BMC surgery

    2024  Volume 24, Issue 1, Page(s) 70

    Abstract: Introduction: ERAS (Enhanced Recovery After Surgery) protocol is now proposed as the standard of care in elective major abdominal surgery. Implementation of the ERAS protocol in emergency setting has been proposed but his economic impact has not been ... ...

    Abstract Introduction: ERAS (Enhanced Recovery After Surgery) protocol is now proposed as the standard of care in elective major abdominal surgery. Implementation of the ERAS protocol in emergency setting has been proposed but his economic impact has not been investigated. Aim of this study was to evaluate the cost saving of implementing ERAS in abdominal emergency surgery in a single institution.
    Methods: A group of 80 consecutive patients treated by ERAS protocol for gastrointestinal emergency surgery in 2021 was compared with an analogue group of 75 consecutive patients treated by the same surgery the year before implementation of ERAS protocol. Adhesion to postoperative items, length of stay, morbidity and mortality were recorded. Cost saving analysis was performed.
    Results: 50% Adhesion to postoperative items was reached on day 2 in the ERAS group in mean. Laparoscopic approach was 40 vs 12% in ERAS and control group respectively (p ,002). Length of stay was shorter in ERAS group by 3 days (9 vs 12 days p ,002). Morbidity and mortality rate were similar in both groups. The ERAS group had a mean cost saving of 1022,78 € per patient.
    Conclusions: ERAS protocol implementation in the abdominal emergency setting is cost effective resulting in a significant shorter length of stay and cost saving per patient.
    MeSH term(s) Humans ; Cost Savings ; Postoperative Complications/epidemiology ; Postoperative Complications/prevention & control ; Digestive System Surgical Procedures ; Elective Surgical Procedures/methods ; Enhanced Recovery After Surgery ; Length of Stay
    Language English
    Publishing date 2024-02-22
    Publishing country England
    Document type Journal Article
    ZDB-ID 2050442-1
    ISSN 1471-2482 ; 1471-2482
    ISSN (online) 1471-2482
    ISSN 1471-2482
    DOI 10.1186/s12893-024-02345-y
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article ; Online: Unusual oral presentation of HSV-1 lesions in an adult liver transplant recipient.

    Yiu, Daniel / Ballabio, Michele / Fornoni, Gianluca / Maggi, Umberto

    BMJ case reports

    2019  Volume 12, Issue 3

    Abstract: Herpes Simplex Virus (HSV) hepatitis in liver transplant patients is a rarely reported infective complication of HSV with severe consequences, often leading to fulminant hepatitis if left untreated. The clinical signs are often atypical, leading to under- ...

    Abstract Herpes Simplex Virus (HSV) hepatitis in liver transplant patients is a rarely reported infective complication of HSV with severe consequences, often leading to fulminant hepatitis if left untreated. The clinical signs are often atypical, leading to under-reporting in the literature and potential delays in treatment. Our case report describes such atypical mucocutaneous lesions in a liver transplant recipient. We highlight the need for further reports, especially those with images, in order to aid the diagnosis of HSV infection, and to allow prompt treatment to prevent complications such as HSV hepatitis.
    MeSH term(s) Adult ; Female ; Hepatitis, Viral, Human/virology ; Herpes Simplex/virology ; Herpesvirus 1, Human ; Humans ; Liver Transplantation/adverse effects ; Mouth/virology ; Postoperative Complications/virology ; Stomatitis, Herpetic/virology
    Language English
    Publishing date 2019-03-08
    Publishing country England
    Document type Case Reports ; Journal Article
    ISSN 1757-790X
    ISSN (online) 1757-790X
    DOI 10.1136/bcr-2018-227492
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article ; Online: Correction to Highly Fluorescent Metal-Organic-Framework Nanocomposites for Photonic Applications.

    Monguzzi, A / Ballabio, M / Yanai, N / Kimizuka, N / Fazzi, D / Campione, M / Meinardi, F

    Nano letters

    2018  Volume 18, Issue 6, Page(s) 4058

    Language English
    Publishing date 2018-05-10
    Publishing country United States
    Document type Journal Article ; Published Erratum
    ISSN 1530-6992
    ISSN (online) 1530-6992
    DOI 10.1021/acs.nanolett.8b01871
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  6. Article ; Online: Quasi-thresholdless Photon Upconversion in Metal-Organic Framework Nanocrystals.

    Meinardi, F / Ballabio, M / Yanai, N / Kimizuka, N / Bianchi, A / Mauri, M / Simonutti, R / Ronchi, A / Campione, M / Monguzzi, A

    Nano letters

    2019  Volume 19, Issue 3, Page(s) 2169–2177

    Abstract: Photon upconversion based on sensitized triplet-triplet annihilation ( sTTA) is considered as a promising strategy for the development of light-managing materials aimed to enhance the performance of solar devices by recovering unused low-energy photons. ... ...

    Abstract Photon upconversion based on sensitized triplet-triplet annihilation ( sTTA) is considered as a promising strategy for the development of light-managing materials aimed to enhance the performance of solar devices by recovering unused low-energy photons. Here, we demonstrate that, thanks to the fast diffusion of excitons, the creation of triplet pairs in metal-organic framework nanocrystals ( nMOFs) with size smaller than the exciton diffusion length implies a 100% TTA yield regardless of the illumination condition. This makes each nMOF a thresholdless, single-unit annihilator. We develop a kinetic model for describing the upconversion dynamics in a nanocrystals ensemble, which allows us to define the threshold excitation intensity  I
    Language English
    Publishing date 2019-02-12
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1530-6992
    ISSN (online) 1530-6992
    DOI 10.1021/acs.nanolett.9b00543
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  7. Article ; Online: Highly Fluorescent Metal-Organic-Framework Nanocomposites for Photonic Applications.

    Monguzzi, A / Ballabio, M / Yanai, N / Kimizuka, N / Fazzi, D / Campione, M / Meinardi, F

    Nano letters

    2017  Volume 18, Issue 1, Page(s) 528–534

    Abstract: Metal-organic frameworks (MOFs) are porous hybrid materials built up from organic ligands coordinated to metal ions or clusters by means of self-assembly strategies. The peculiarity of these materials is the possibility, according to specific synthetic ... ...

    Abstract Metal-organic frameworks (MOFs) are porous hybrid materials built up from organic ligands coordinated to metal ions or clusters by means of self-assembly strategies. The peculiarity of these materials is the possibility, according to specific synthetic routes, to manipulate both the composition and ligands arrangement in order to control their optical and energy-transport properties. Therefore, optimized MOFs nanocrystals (nano-MOFs) can potentially represent the next generation of luminescent materials with features similar to those of their inorganic predecessors, that is, the colloidal semiconductor quantum dots. The luminescence of fluorescent nano-MOFs is generated through the radiative recombination of ligand molecular excitons. The uniqueness of these nanocrystals is the possibility to pack the ligand chromophores close enough to allow a fast exciton diffusion but sufficiently far from each other preventing the aggregation-induced effects of the organic crystals. In particular, the formation of strongly coupled dimers or excimers is avoided, thus preserving the optical features of the isolated molecule. However, nano-MOFs have a very small fluorescence quantum yield (QY). In order to overcome this limitation and achieve highly emitting systems, we analyzed the fluorescence process in blue emitting nano-MOFs and modeled the diffusion and quenching mechanism of photogenerated singlet excitons. Our results demonstrate that the excitons quenching in nano-MOFs is mainly due to the presence of surface-located, nonradiative recombination centers. In analogy with their inorganic counterparts, we found that the passivation of the nano-MOF surfaces is a straightforward method to enhance the emission efficiency. By embedding the nanocrystals in an inert polymeric host, we observed a +200% increment of the fluorescence QY, thus recovering the emission properties of the isolated ligand in solution.
    Language English
    Publishing date 2017-12-15
    Publishing country United States
    Document type Journal Article ; Research Support, Non-U.S. Gov't
    ISSN 1530-6992
    ISSN (online) 1530-6992
    DOI 10.1021/acs.nanolett.7b04536
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  8. Article ; Online: Interrogation of endothelial and mural cells in brain metastasis reveals key immune-regulatory mechanisms.

    Bejarano, Leire / Kauzlaric, Annamaria / Lamprou, Eleni / Lourenco, Joao / Fournier, Nadine / Ballabio, Michelle / Colotti, Roberto / Maas, Roeltje / Galland, Sabine / Massara, Matteo / Soukup, Klara / Lilja, Johanna / Brouland, Jean-Philippe / Hottinger, Andreas F / Daniel, Roy T / Hegi, Monika E / Joyce, Johanna A

    Cancer cell

    2024  Volume 42, Issue 3, Page(s) 378–395.e10

    Abstract: Brain metastasis (BrM) is a common malignancy, predominantly originating from lung, melanoma, and breast cancers. The vasculature is a key component of the BrM tumor microenvironment with critical roles in regulating metastatic seeding and progression. ... ...

    Abstract Brain metastasis (BrM) is a common malignancy, predominantly originating from lung, melanoma, and breast cancers. The vasculature is a key component of the BrM tumor microenvironment with critical roles in regulating metastatic seeding and progression. However, the heterogeneity of the major BrM vascular components, namely endothelial and mural cells, is still poorly understood. We perform single-cell and bulk RNA-sequencing of sorted vascular cell types and detect multiple subtypes enriched specifically in BrM compared to non-tumor brain, including previously unrecognized immune regulatory subtypes. We integrate the human data with mouse models, creating a platform to interrogate vascular targets for the treatment of BrM. We find that the CD276 immune checkpoint molecule is significantly upregulated in the BrM vasculature, and anti-CD276 blocking antibodies prolonged survival in preclinical trials. This study provides important insights into the complex interactions between the vasculature, immune cells, and cancer cells, with translational relevance for designing therapeutic interventions.
    MeSH term(s) Mice ; Animals ; Humans ; Female ; Brain Neoplasms/pathology ; Brain/metabolism ; Melanoma ; Breast Neoplasms/pathology ; Transcription Factors/metabolism ; Tumor Microenvironment ; B7 Antigens
    Chemical Substances Transcription Factors ; CD276 protein, human ; B7 Antigens
    Language English
    Publishing date 2024-01-18
    Publishing country United States
    Document type Journal Article
    ZDB-ID 2078448-X
    ISSN 1878-3686 ; 1535-6108
    ISSN (online) 1878-3686
    ISSN 1535-6108
    DOI 10.1016/j.ccell.2023.12.018
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    In stock of ZB MED Cologne/Königswinter

    Zs.A 5650: Show issues Location:
    Je nach Verfügbarkeit (siehe Angabe bei Bestand)
    bis Jg. 1994: Bestellungen von Artikeln über das Online-Bestellformular
    Jg. 1995 - 2021: Lesesall (2.OG)
    ab Jg. 2022: Lesesaal (EG)
    Zs.MG 104: Show issues

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  9. Book ; Online: The Drude-Smith Model for Conductivity

    Krewer, Keno L. / Ballabio, Marco / Bonn, Mischa

    de novo Derivation and Interpretation

    2020  

    Abstract: The Drude-Smith model successfully describes the frequency and phase-resolved electrical conductivity data for a surprisingly broad range of systems, especially in the terahertz region. Still, its interpretation is unclear since its original derivation ... ...

    Abstract The Drude-Smith model successfully describes the frequency and phase-resolved electrical conductivity data for a surprisingly broad range of systems, especially in the terahertz region. Still, its interpretation is unclear since its original derivation is flawed. We use an intuitive physical framework to derive the Drude-Smith formula for systems where microscopically free charges are accumulated on a mesoscopic scale by localized scatterers. Within this framework, the model allows us to quantify the microscopic momentum relaxation time of the charges and the fraction of mesoscopically localized charges in addition to the direct current limit of the conductivity. We show that the Drude-Smith model is unique among different Drude-Lorentz models because the relaxation time of the free carriers also determines the frequency and damping of the resonance of the bound charges.

    Comment: 8 pages, 3 figures
    Keywords Condensed Matter - Materials Science
    Subject code 541
    Publishing date 2020-08-18
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  10. Article ; Online: Composition-Dependent Passivation Efficiency at the CdS/CuIn

    Ballabio, Marco / Fuertes Marrón, David / Barreau, Nicolas / Bonn, Mischa / Cánovas, Enrique

    Advanced materials (Deerfield Beach, Fla.)

    2020  Volume 32, Issue 9, Page(s) e1907763

    Abstract: The bandgap of ... ...

    Abstract The bandgap of CuIn
    Language English
    Publishing date 2020-01-27
    Publishing country Germany
    Document type Journal Article
    ZDB-ID 1474949-X
    ISSN 1521-4095 ; 0935-9648
    ISSN (online) 1521-4095
    ISSN 0935-9648
    DOI 10.1002/adma.201907763
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