1
|
Lin H, Buerki-Thurnherr T, Kaur J, Wick P, Pelin M, Tubaro A, Carniel FC, Tretiach M, Flahaut E, Iglesias D, Vázquez E, Cellot G, Ballerini L, Castagnola V, Benfenati F, Armirotti A, Sallustrau A, Taran F, Keck M, Bussy C, Vranic S, Kostarelos K, Connolly M, Navas JM, Mouchet F, Gauthier L, Baker J, Suarez-Merino B, Kanerva T, Prato M, Fadeel B, Bianco A. Environmental and Health Impacts of Graphene and Other Two-Dimensional Materials: A Graphene Flagship Perspective. ACS Nano 2024; 18:6038-6094. [PMID: 38350010 PMCID: PMC10906101 DOI: 10.1021/acsnano.3c09699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2023] [Revised: 01/18/2024] [Accepted: 01/22/2024] [Indexed: 02/15/2024]
Abstract
Two-dimensional (2D) materials have attracted tremendous interest ever since the isolation of atomically thin sheets of graphene in 2004 due to the specific and versatile properties of these materials. However, the increasing production and use of 2D materials necessitate a thorough evaluation of the potential impact on human health and the environment. Furthermore, harmonized test protocols are needed with which to assess the safety of 2D materials. The Graphene Flagship project (2013-2023), funded by the European Commission, addressed the identification of the possible hazard of graphene-based materials as well as emerging 2D materials including transition metal dichalcogenides, hexagonal boron nitride, and others. Additionally, so-called green chemistry approaches were explored to achieve the goal of a safe and sustainable production and use of this fascinating family of nanomaterials. The present review provides a compact survey of the findings and the lessons learned in the Graphene Flagship.
Collapse
Affiliation(s)
- Hazel Lin
- CNRS,
UPR3572, Immunology, Immunopathology and Therapeutic Chemistry, ISIS, University of Strasbourg, 67000 Strasbourg, France
| | - Tina Buerki-Thurnherr
- Empa,
Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Particles-Biology Interactions, 9014 St. Gallen, Switzerland
| | - Jasreen Kaur
- Nanosafety
& Nanomedicine Laboratory, Institute
of Environmental Medicine, Karolinska Institutet, 177 77 Stockholm, Sweden
| | - Peter Wick
- Empa,
Swiss Federal Laboratories for Materials Science and Technology, Laboratory for Particles-Biology Interactions, 9014 St. Gallen, Switzerland
| | - Marco Pelin
- Department
of Life Sciences, University of Trieste, 34127 Trieste, Italy
| | - Aurelia Tubaro
- Department
of Life Sciences, University of Trieste, 34127 Trieste, Italy
| | | | - Mauro Tretiach
- Department
of Life Sciences, University of Trieste, 34127 Trieste, Italy
| | - Emmanuel Flahaut
- CIRIMAT,
Université de Toulouse, CNRS, INPT,
UPS, 31062 Toulouse CEDEX 9, France
| | - Daniel Iglesias
- Facultad
de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha (UCLM), 13071 Ciudad Real, Spain
- Instituto
Regional de Investigación Científica Aplicada (IRICA), Universidad de Castilla-La Mancha (UCLM), 13071 Ciudad Real, Spain
| | - Ester Vázquez
- Facultad
de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha (UCLM), 13071 Ciudad Real, Spain
- Instituto
Regional de Investigación Científica Aplicada (IRICA), Universidad de Castilla-La Mancha (UCLM), 13071 Ciudad Real, Spain
| | - Giada Cellot
- International
School for Advanced Studies (SISSA), 34136 Trieste, Italy
| | - Laura Ballerini
- International
School for Advanced Studies (SISSA), 34136 Trieste, Italy
| | - Valentina Castagnola
- Center
for
Synaptic Neuroscience and Technology, Istituto
Italiano di Tecnologia, 16132 Genova, Italy
- IRCCS
Ospedale Policlinico San Martino, 16132 Genova, Italy
| | - Fabio Benfenati
- Center
for
Synaptic Neuroscience and Technology, Istituto
Italiano di Tecnologia, 16132 Genova, Italy
- IRCCS
Ospedale Policlinico San Martino, 16132 Genova, Italy
| | - Andrea Armirotti
- Analytical
Chemistry Facility, Istituto Italiano di
Tecnologia, 16163 Genoa, Italy
| | - Antoine Sallustrau
- Département
Médicaments et Technologies pour la Santé (DMTS), Université Paris-Saclay, CEA, INRAE, SIMoS, Gif-sur-Yvette 91191, France
| | - Frédéric Taran
- Département
Médicaments et Technologies pour la Santé (DMTS), Université Paris-Saclay, CEA, INRAE, SIMoS, Gif-sur-Yvette 91191, France
| | - Mathilde Keck
- Département
Médicaments et Technologies pour la Santé (DMTS), Université Paris-Saclay, CEA, INRAE, SIMoS, Gif-sur-Yvette 91191, France
| | - Cyrill Bussy
- Nanomedicine
Lab, Faculty of Biology, Medicine and Health, University of Manchester,
Manchester Academic Health Science Centre, National Graphene Institute, Manchester M13 9PT, United
Kingdom
| | - Sandra Vranic
- Nanomedicine
Lab, Faculty of Biology, Medicine and Health, University of Manchester,
Manchester Academic Health Science Centre, National Graphene Institute, Manchester M13 9PT, United
Kingdom
| | - Kostas Kostarelos
- Nanomedicine
Lab, Faculty of Biology, Medicine and Health, University of Manchester,
Manchester Academic Health Science Centre, National Graphene Institute, Manchester M13 9PT, United
Kingdom
| | - Mona Connolly
- Instituto Nacional de Investigación y Tecnología
Agraria
y Alimentaria (INIA), CSIC, Carretera de la Coruña Km 7,5, E-28040 Madrid, Spain
| | - José Maria Navas
- Instituto Nacional de Investigación y Tecnología
Agraria
y Alimentaria (INIA), CSIC, Carretera de la Coruña Km 7,5, E-28040 Madrid, Spain
| | - Florence Mouchet
- Laboratoire
Ecologie Fonctionnelle et Environnement, Université de Toulouse, CNRS, INPT, UPS, 31000 Toulouse, France
| | - Laury Gauthier
- Laboratoire
Ecologie Fonctionnelle et Environnement, Université de Toulouse, CNRS, INPT, UPS, 31000 Toulouse, France
| | - James Baker
- TEMAS Solutions GmbH, 5212 Hausen, Switzerland
| | | | - Tomi Kanerva
- Finnish Institute of Occupational Health, 00250 Helsinki, Finland
| | - Maurizio Prato
- Center
for Cooperative Research in Biomaterials (CIC biomaGUNE), Basque Research and Technology Alliance (BRTA), 20014 Donostia-San
Sebastián, Spain
- Ikerbasque, Basque Foundation for Science, 48013 Bilbao, Spain
- Department
of Chemical and Pharmaceutical Sciences, University of Trieste, 34127 Trieste, Italy
| | - Bengt Fadeel
- Nanosafety
& Nanomedicine Laboratory, Institute
of Environmental Medicine, Karolinska Institutet, 177 77 Stockholm, Sweden
| | - Alberto Bianco
- CNRS,
UPR3572, Immunology, Immunopathology and Therapeutic Chemistry, ISIS, University of Strasbourg, 67000 Strasbourg, France
| |
Collapse
|
2
|
Rozhin P, Adorinni S, Iglesias D, Mackiol T, Kralj S, Bisetto M, Abrami M, Grassi M, Bevilacqua M, Fornasiero P, Marchesan S. Nanocomposite Hydrogels with Self-Assembling Peptide-Functionalized Carbon Nanostructures. Chemistry 2023; 29:e202301708. [PMID: 37740618 DOI: 10.1002/chem.202301708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/29/2023] [Revised: 09/20/2023] [Accepted: 09/21/2023] [Indexed: 09/24/2023]
Abstract
Carbon nanostructures (CNSs) are attractive components to attain nanocomposites, yet their hydrophobic nature and strong tendency to aggregate often limit their use in aqueous conditions and negatively impact their properties. In this work, carbon nanohorns (CNHs), multi-walled carbon nanotubes (CNTs), and graphene (G) are first oxidized, and then reacted to covalently anchor the self-assembling tripeptide L-Leu-D-Phe-D-Phe to improve their dispersibility in phosphate buffer, and favor the formation of hydrogels formed by the self-organizing L-Leu-D-Phe-D-Phe present in solution. The obtained nanocomposites are then characterized by transmission electron microscopy (TEM), oscillatory rheology, and conductivity measurements to gain useful insights as to the key factors that determine self-healing ability for the future design of this type of nanocomposites.
Collapse
Affiliation(s)
- Petr Rozhin
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127, Trieste, Italy
| | - Simone Adorinni
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127, Trieste, Italy
| | - Daniel Iglesias
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127, Trieste, Italy
| | - Tino Mackiol
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127, Trieste, Italy
| | - Slavko Kralj
- Department of Materials Synthesis, Jožef Stefan Institute, Jamova 39, 1000, Ljubljana, Slovenia
- Department of Pharmaceutical Technology, Faculty of Pharmacy, University of Ljubljana, Aškerčeva 7, 1000, Ljubljana, Slovenia
| | - Matteo Bisetto
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127, Trieste, Italy
- National Interuniversity Consortium of Materials Science and Technology (INSTM) Unit of Trieste, Via L. Giorgieri 1, 34127, Trieste, Italy
| | - Michela Abrami
- Department of Engineering and Architecture, University of Trieste, Via Valerio 6/A, 34127, Trieste, Italy
| | - Mario Grassi
- Department of Engineering and Architecture, University of Trieste, Via Valerio 6/A, 34127, Trieste, Italy
| | - Manuela Bevilacqua
- Institute for the Chemistry of Organometallic Compounds (ICCOM-CNR), National Research Council (CNR), Via Madonna del Piano 10, 50019, Sesto, Fiorentino (FI), Italy
- Third Parties Research Unit (URT-ICCOM), Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127, Trieste, Italy
| | - Paolo Fornasiero
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127, Trieste, Italy
- National Interuniversity Consortium of Materials Science and Technology (INSTM) Unit of Trieste, Via L. Giorgieri 1, 34127, Trieste, Italy
| | - Silvia Marchesan
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via L. Giorgieri 1, 34127, Trieste, Italy
- National Interuniversity Consortium of Materials Science and Technology (INSTM) Unit of Trieste, Via L. Giorgieri 1, 34127, Trieste, Italy
| |
Collapse
|
3
|
Iglesias D, Martín R, Álvarez-Sánchez MÁ, Badía-Domínguez I, Vázquez E, Carmen Ruiz Delgado M, Prieto P, Antonia Herrero M. Understanding the Raman enhancement of carbon nanohorns labelled with organic dyes. Nanoscale 2023. [PMID: 37401747 DOI: 10.1039/d3nr01357j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/05/2023]
Abstract
Carbon nanohorns have been non-covalently functionalized with two different benzothiadiazoloquinoxalines prepared via Stille cross-coupling reactions under solvent-free conditions and microwave irradiation. The close interactions between these organic molecules and the nanostructures resulted in a prominent Raman enhancement, which makes them attractive candidates for multiple applications. A complete experimental physico-chemical characterization has been combined with in silico studies to understand these phenomena. The processability of the hybrids was exploited to prepare homogeneous films on substrates with different natures.
Collapse
Affiliation(s)
- Daniel Iglesias
- Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha (UCLM), 13071 Ciudad Real, Spain.
- Instituto Regional de investigación Científica Aplicada (IRICA), 13071 Ciudad Real, Spain
| | - Raúl Martín
- Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha (UCLM), 13071 Ciudad Real, Spain.
- Instituto de Ciencia de Materiales de Madrid, CSIC Cantoblanco, 28049, Madrid, Spain
| | - Miguel Á Álvarez-Sánchez
- Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha (UCLM), 13071 Ciudad Real, Spain.
- Instituto Regional de investigación Científica Aplicada (IRICA), 13071 Ciudad Real, Spain
| | - Irene Badía-Domínguez
- Department of Physical Chemistry, University of Malaga, Campus de Teatinos s/n, Malaga 29071, Spain
| | - Ester Vázquez
- Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha (UCLM), 13071 Ciudad Real, Spain.
- Instituto Regional de investigación Científica Aplicada (IRICA), 13071 Ciudad Real, Spain
| | - M Carmen Ruiz Delgado
- Department of Physical Chemistry, University of Malaga, Campus de Teatinos s/n, Malaga 29071, Spain
| | - Pilar Prieto
- Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha (UCLM), 13071 Ciudad Real, Spain.
| | - M Antonia Herrero
- Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha (UCLM), 13071 Ciudad Real, Spain.
- Instituto Regional de investigación Científica Aplicada (IRICA), 13071 Ciudad Real, Spain
| |
Collapse
|
4
|
Maqueda L, Almenara J, Piñeiro D, Rodríguez E, Rueda F, Yáñez A, Villone F, Baldrís M, Herrero I, Serrano M, Bender S, Iglesias D, Nikolaeva D, Sadakov S. Feasibility evaluation and pre-conceptual design of the Iter Tokamak systems monitor. Fusion Engineering and Design 2023. [DOI: 10.1016/j.fusengdes.2023.113435] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
5
|
Vainstein E, Baleani S, Urrutia L, Affranchino N, Ackerman J, Cazalas M, Goldsman A, Sardella A, Tolin AL, Goldaracena P, Fabi M, Cosentino M, Magliola R, Roggiero G, Manso P, Triguy J, Ballester C, Cervetto V, Vaccarello M, De Carli DN, De Carli ME, Ciotti AL, Sicurello MI, Rios Leiva C, Villalba C, Hortas M, Peña S, González G, Zold CL, Murer MG, Vázquez H, Morós C, Di Santo M, Villa A, Lazota P, Foti M, Napoli N, Katsikas MM, Tonello L, Peña J, Etcheverry M, Iglesias D, Alcalde AL, Bruera MJ, Bruzzo V, Giordano P, Acero FP, Pelandi GN, Pastaro D, Bleiz J, Rodríguez MF, Laghezza L, Molina MB, Patynok N, Chatelain, Aguilar MJ, Gamboa J, Cervan M, Ruggeri A, Marinelli I, Checcacci E, Meregalli C, Damksy Barbosa J, Fernie L, Fernández MJ, Saenz Tejeira MM, Cereigido C, Nunell A, Villar D, Mansilla AD, Darduin MD. Multicentre observational study on multisystem inflammatory syndrome related to COVID-19 in Argentina. Pediatr Int 2023; 65:e15431. [PMID: 36464947 PMCID: PMC9878215 DOI: 10.1111/ped.15431] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2022] [Revised: 10/07/2022] [Accepted: 11/21/2022] [Indexed: 12/11/2022]
Abstract
BACKGROUND The impact of the pediatric inflammatory multisystem syndrome temporally associated with SARS-CoV-2 (PIMS-TS) in low- and middle-income countries remains poorly understood. Our aim was to understand the characteristics and outcomes of PIMS-TS in Argentina. METHODS This observational, prospective, and retrospective multicenter study enrolled patients younger than 18 years-old manifesting PIMS-TS, Kawasaki disease (KD) or Kawasaki shock syndrome (KSS) between March 2020 and May 2021. Patients were followed-up until hospital discharge or death (one case). The primary outcome was pediatric intensive care unit (PICU) admission. Multiple logistic regression was used to identify variables predicting PICU admission. RESULTS Eighty-one percent, 82%, and 14% of the 176 enrolled patients fulfilled the suspect case criteria for PIMS-TS, KD, and KSS, respectively. Temporal association with SARS-CoV-2 was confirmed in 85% of the patients and 38% were admitted to the PICU. The more common clinical manifestations were fever, abdominal pain, rash, and conjunctival injection. Lymphopenia was more common among PICU-admitted patients (87% vs. 51%, p < 0.0001), who also showed a lower platelet count and higher plasmatic levels of inflammatory and cardiac markers. Mitral valve insufficiency, left ventricular wall motion alterations, pericardial effusion, and coronary artery alterations were observed in 30%, 30%, 19.8%, and 18.6% of the patients, respectively. Days to initiation of treatment, rash, lymphopenia, and low platelet count were significant independent contributions to PICU admission. CONCLUSION Rates of severe outcomes of PIMS-TS in the present study agreed with those observed in high-income countries. Together with other published studies, this work helps clinicians to better understand this novel clinical entity.
Collapse
Affiliation(s)
- Eduardo Vainstein
- Clínica Pediátrica, Hospital de Niños Dr. Ricardo Gutiérrez, Buenos Aires, Argentina
| | - Silvia Baleani
- Clínica Pediátrica, Hospital de Niños Dr. Ricardo Gutiérrez, Buenos Aires, Argentina
| | - Luis Urrutia
- Clínica Pediátrica, Hospital Nacional de Pediatría Juan P Garrahan, Buenos Aires, Argentina
| | - Nicolás Affranchino
- Clínica Pediátrica, Hospital Nacional de Pediatría Juan P Garrahan, Buenos Aires, Argentina
| | - Judith Ackerman
- Unidad de Cardiología, Hospital General de Niños Pedro de Elizalde, Buenos Aires, Argentina
| | - Mariana Cazalas
- División de Cardiología, Hospital de Niños Dr. Ricardo Gutiérrez y Sanatorio Sagrado Corazón, Buenos Aires, Argentina
| | - Alejandro Goldsman
- División de Cardiología, Hospital de Niños Dr. Ricardo Gutiérrez y Sanatorio Sagrado Corazón, Buenos Aires, Argentina
| | - Angela Sardella
- División de Cardiología, Hospital de Niños Dr. Ricardo Gutiérrez, Buenos Aires, Argentina
| | - Ana Laura Tolin
- Servicio de Inmunología, Hospital H. Notti, Provincia de Mendoza, Argentina
| | - Pablo Goldaracena
- Clínica Médica, Hospital Sor María Ludovica de La Plata, Provincia de Buenos Aires, Argentina
| | - Mariana Fabi
- Servicio de Reumatología, Hospital Sor María Ludovica de La Plata, Provincia de Buenos Aires, Argentina
| | | | - Ricardo Magliola
- Clínica Pediátrica, Unidad Terapia Intensiva, Hospital Británico, Buenos Aires, Argentina
| | - Gustavo Roggiero
- Servicio de Cardiología, Hospital El Cruce Néstor Carlos Kirchner y Clínica del Niño de Quilmes, Provincia de Buenos Aires, Argentina
| | - Paula Manso
- Servicio de Cardiología, Hospital El Cruce Néstor Carlos Kirchner, Provincia de Buenos Aires, Argentina
| | - Jésica Triguy
- Servicio de Inmunología, Hospital H. Notti, Provincia de Mendoza, Argentina
| | - Celeste Ballester
- Servicio de Inmunología, Hospital H. Notti, Provincia de Mendoza, Argentina
| | - Vanesa Cervetto
- Reumatología, Hospital General de Niños Pedro de Elizalde y Hospital Británico, Buenos Aires, Argentina
| | - María Vaccarello
- Clínica Pediátrica, Sanatorio la Trinidad, Quilmes, Provincia de Buenos Aires, Argentina
| | | | - Maria Estela De Carli
- Clínica Pediátrica, Clínica del Niño de Quilmes, Provincia de Buenos Aires, Argentina
| | - Ana Laura Ciotti
- Servicio de Cardiología, Hospital A. Posadas, Provincia de Buenos Aires, Argentina
| | - María Irene Sicurello
- División de Cardiología, Hospital de Niños Dr. Ricardo Gutiérrez, Buenos Aires, Argentina
| | - Cecilia Rios Leiva
- Servicio de Cardiología, Hospital Eva Perón de San Martín, Provincia de Buenos Aires, Argentina
| | - Claudia Villalba
- Servicio de Cardiología, Hospital Británico y Hospital Nacional de Pediatría Juan P Garrahan, Buenos Aires, Argentina
| | - María Hortas
- Servicio de Reumatología, Sanatorio la Trinidad, Quilmes, Provincia de Buenos Aires, Argentina
| | - Sonia Peña
- Servicio de Inmunología, Hospital H. Notti, Provincia de Mendoza, Argentina
| | - Gabriela González
- Servicio de Cardiología, Hospital H. Notti, Provincia de Mendoza, Argentina
| | - Camila Lidia Zold
- Universidad de Buenos Aires, CONICET, Instituto de Fisiología y Biofísica (IFIBIO) Bernardo Houssay, Buenos Aires, Argentina
| | - Mario Gustavo Murer
- Universidad de Buenos Aires, CONICET, Instituto de Fisiología y Biofísica (IFIBIO) Bernardo Houssay, Buenos Aires, Argentina
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
6
|
Iglesias D, Mazon-Ramos PMR, Portela-Romero MPR, Lopez-Barreiro LLB, Garcia-Castelo AGC, Pazos-Mareque JPM, Rey-Aldana DRA, Alvarez-Alvarez BAA, Martinez-Monzonis AMM, Cinza-Sanjurjo SCS, Gonzalez-Juanatey RGJ. Universal electronic consultation program (e-consultation) of a cardiology department: long-term results in mortality. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.2818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Many health systems have initiated electronic consultation programs, although little is known about their impact on accessibility, safety and satisfaction (1). The implementation of integrated electronic medical record projects between healthcare levels allows all healthcare professionals access to all the clinical information of patients, which is a key factor in optimizing the management of healthcare resources, facilitating the communication between professionals and avoiding medical acts that do not add value, always from the premise of safety and quality for patients (2). In our model, a General Practitioner sends an e-referral to the Cardiology Department (CD). A Cardiologist can either answer without needing the face-to-face consultation, or schedule the patient for a single act consultation. In our health area, from 2009 to 2012, a “single act” cardiology consultation model was implemented, according to which the appointment includes, on the same day, all the complementary tests that might be necessary for the diagnosis. From 2013 until present, an electronic consultation or e-consultation model has been implemented; consisting of a telematic evaluation of the e-consultation by a cardiologist, who can either solve the GP's requests directly or book an appointment for the patient in person, in cases where it is considered necessary (3).
Purpose
The aim of this study is to assess the clinical impact of the implementation of a model of outpatient care that includes an initial electronic consultation (e-consultation), comparing it with a face-to-face single act model.
Methods
We selected patients with at least one visit to the Cardiology Department between 2010 and 2019. Using an interrupted time series regression model, we analysed the impact of incorporating the e-consultation into the healthcare model (started in 2013), evaluating: waiting time for care and mortality.
Results
We analysed 47,377 patients: 61.9% attended by incorporating the e-consultation and 38.1% in the face-to-face consultation model. The delay time for care in the e-consultation model (median [IQR]: 7 days [5–13]) was shorter than in the face-to-face model (median [IQR]: 33 days [14–81]), p<0.001. The regression model for interrupted time series showed that the incorporation of e-consultation contributed a very important decrease in the delay of attention, remaining around 9 days, although with slight oscillations, Figure 1. The patients evaluated via e-consultation had less mortality (2.5% vs 3.9%, p<0.001), Figure 2.
Conclusions
An outpatient care program that includes an e-consultation has shown to reduce waiting times significantly and is a safe model with a lower rate of mortality over the first year after the consultation.
Funding Acknowledgement
Type of funding sources: None.
Collapse
Affiliation(s)
- D Iglesias
- Hospital Clínico Universitario de Santiago de Compostela, IDICHUS & CIBERCV., Cardiology , Santiago de Compostela , Spain
| | - P M R Mazon-Ramos
- Hospital Clínico Universitario de Santiago de Compostela, IDICHUS & CIBERCV., Cardiology , Santiago de Compostela , Spain
| | | | - L L B Lopez-Barreiro
- Hospital Clínico Universitario de Santiago de Compostela, IDICHUS & CIBERCV., Cardiology , Santiago de Compostela , Spain
| | - A G C Garcia-Castelo
- Hospital Clínico Universitario de Santiago de Compostela, IDICHUS & CIBERCV., Cardiology , Santiago de Compostela , Spain
| | - J P M Pazos-Mareque
- Hospital Clínico Universitario de Santiago de Compostela, IDICHUS & CIBERCV., Cardiology , Santiago de Compostela , Spain
| | | | - B A A Alvarez-Alvarez
- Hospital Clínico Universitario de Santiago de Compostela, IDICHUS & CIBERCV., Cardiology , Santiago de Compostela , Spain
| | - A M M Martinez-Monzonis
- Hospital Clínico Universitario de Santiago de Compostela, IDICHUS & CIBERCV., Cardiology , Santiago de Compostela , Spain
| | | | - R G J Gonzalez-Juanatey
- Hospital Clínico Universitario de Santiago de Compostela, IDICHUS & CIBERCV., Cardiology , Santiago de Compostela , Spain
| |
Collapse
|
7
|
Des M, Gómez-Gesteira JL, deCastro M, Iglesias D, Sousa MC, ElSerafy G, Gómez-Gesteira M. Historical and future naturalization of Magallana gigas in the Galician coast in a context of climate change. Sci Total Environ 2022; 838:156437. [PMID: 35660616 DOI: 10.1016/j.scitotenv.2022.156437] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 05/30/2022] [Accepted: 05/30/2022] [Indexed: 06/15/2023]
Abstract
Magallana gigas is a naturalized species on the north coast of Galicia (Rías Altas, Northwest Iberian Peninsula), where it was unintentionally introduced. In recent decades, a greater abundance of M. gigas has been observed on the Galician coast, expanding towards the south, reaching the Artabro Gulf (Rías Centrales, NW Galician coast), probably due to ocean warming. Although this species has been cultivated in the Rías Baixas since the early 1990s and spawning has been reported, recruitment was never observed, which is likely due to the cold water upwelled during the spawning months. The future rise in seawater temperature may favor the naturalization of the non-indigenous species M. gigas southwards, in the Rías Baixas. Thermally, the Ría de Arousa seems to be the most favorable estuary for the future settlement of M. gigas, which may occur in the next decades. The extent of thermally favorable zones within estuaries is projected to increase rapidly by mid-century, and reaching 100 % of the estuarine area by the end of the century. As has already happened in other areas of the world, the expansion and naturalization of the Pacific oyster on the Galician coast will likely affect the native communities and economic activities, making it necessary to implement monitoring and management strategies to mitigate its effect.
Collapse
Affiliation(s)
- M Des
- Centro de Investigación Mariña, Universidade de Vigo, Environmental Physics Laboratory (EPhysLab), Campus As Lagoas s/n, 32004 Ourense, Spain; Stitching Deltares, Boussinesqweg 1, 2629 HV Delft, the Netherlands.
| | - J L Gómez-Gesteira
- Centro de Investigación Mariña, Universidade de Vigo, Environmental Physics Laboratory (EPhysLab), Campus As Lagoas s/n, 32004 Ourense, Spain; Centro Tecnológico del Mar- Fundación CETMAR, c/ Eduardo Cabello s/n, 36208 Vigo, Spain
| | - M deCastro
- Centro de Investigación Mariña, Universidade de Vigo, Environmental Physics Laboratory (EPhysLab), Campus As Lagoas s/n, 32004 Ourense, Spain
| | - D Iglesias
- Centro de Investigacións Mariñas (CIMA), Consellería do Mar, Xunta de Galicia, 36620 Vilanova de Arousa, Spain
| | - M C Sousa
- CESAM, Physics Department, University of Aveiro, Aveiro 3810-193, Portugal
| | - G ElSerafy
- Stitching Deltares, Boussinesqweg 1, 2629 HV Delft, the Netherlands; Delft Institute of Applied Mathematics, Delft University of Technology, Mekelweg 5, 2628 CD Delft, the Netherlands
| | - M Gómez-Gesteira
- Centro de Investigación Mariña, Universidade de Vigo, Environmental Physics Laboratory (EPhysLab), Campus As Lagoas s/n, 32004 Ourense, Spain
| |
Collapse
|
8
|
Wang Y, Iglesias D, Gali SM, Beljonne D, Samorì P. Light-Programmable Logic-in-Memory in 2D Semiconductors Enabled by Supramolecular Functionalization: Photoresponsive Collective Effect of Aligned Molecular Dipoles. ACS Nano 2021; 15:13732-13741. [PMID: 34370431 DOI: 10.1021/acsnano.1c05167] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Nowadays, the unrelenting growth of the digital universe calls for radically novel strategies for data processing and storage. An extremely promising and powerful approach relies on the development of logic-in-memory (LiM) devices through the use of floating gate and ferroelectric technologies to write and erase data in a memory operating as a logic gate driven by electrical bias. In this work, we report an alternative approach to realize the logic-in-memory based on two-dimensional (2D) transition metal dichalcogenides (TMDs) where multiple memorized logic output states have been established via the interface with responsive molecular dipoles arranged in supramolecular arrays. The collective dynamic molecular dipole changes of the axial ligand coordinated onto self-assembled metal phthalocyanine nanostructures on the surface of 2D TMD enables large reversible modulation of the Fermi level of both n-type molybdenum disulfide (MoS2) and p-type tungsten diselenide (WSe2) field-effect transistors (FETs), to achieve multiple memory states by programming and erasing with ultraviolet (UV) and with visible light, respectively. As a result, logic-in-memory devices were built up with our supramolecular layer/2D TMD architecture where the output logic is encoded by the motion of the molecular dipoles. Our strategy relying on the dynamic control of the 2D electronics by harnessing the functions of molecular-dipole-induced memory in a supramolecular hybrid layer represents a versatile way to integrate the functional programmability of molecular science into the next generation nanoelectronics.
Collapse
Affiliation(s)
- Ye Wang
- University of Strasbourg,CNRS, ISIS UMR 7006, 8 Allée Gaspard Monge, F-67000 Strasbourg, France
| | - Daniel Iglesias
- University of Strasbourg,CNRS, ISIS UMR 7006, 8 Allée Gaspard Monge, F-67000 Strasbourg, France
| | - Sai Manoj Gali
- Laboratory for Chemistry of Novel Materials, Université de Mons, Place du Parc 20, 7000 Mons, Belgium
| | - David Beljonne
- Laboratory for Chemistry of Novel Materials, Université de Mons, Place du Parc 20, 7000 Mons, Belgium
| | - Paolo Samorì
- University of Strasbourg,CNRS, ISIS UMR 7006, 8 Allée Gaspard Monge, F-67000 Strasbourg, France
| |
Collapse
|
9
|
Bamber R, Iglesias D, Asunta O, Bunting P, Daughtry S, Dunbar G, Hanks S, Horozaniecki A, Moore P, Lockley D, Riddle K, Stankiewicz M, Srawley T, Sykes N, Slade R, Stevens S, Webb K, Wood J. The ST40 IVC1 divertor project: Procurement and installation in times of COVID-19. Fusion Engineering and Design 2021. [DOI: 10.1016/j.fusengdes.2021.112378] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
10
|
Davolos I, Franchella J, Iglesias D, Paz I, Sayavedra G, Sotelo B, Gelormini A, Pappalettere C, Bucay C, Castiello G, Gonzalez Naya E, Stuart P, Filosa E, Pais De Almeida M, Diaz Babio G. Physical activity recommendation by cardiologists. Eur J Prev Cardiol 2021. [DOI: 10.1093/eurjpc/zwab061.190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
OnBehalf
Exercise Cardiology Council
Background. Large number of studies confirm benefits of physical activity (PA) to improve health. Recommendation guidelines lack tools for health professionals training in PA prescription.
Purpose. To show cardiologists knowledge degree and attitude regarding existing recommendations on PA.
Methods. Observational and cross-sectional study. n = 299. A virtual survey describes cardiologist profile, knowledge degree, planning and satisfaction while making PA recommendation.
Results. Cardiologists profile in Table 1. Mean age 47.27 (SD 11.92). Sedentary lifestyle is considered a cardiovascular risk factor (CVRF) by 93.24%. 70% report performing PA complying with the recommendations of world health organization. 98.99% recommend PA while 80.74% also prescribe it. Prescribing PA, cardiologists self-rating is adequate-very adequate in 83%. Instruments used are guidelines (57.33%), self-perception (32%), expert opinion (25.33%). Most suggested mode of exercise is walking or jogging. Only 25.67% combine resistance and strength exercises. Only 13% choose to combine four parameters (heart rate, time, mode, intensity). Only 31.85% have undergone postgraduate training or education on PA prescription.
Conclusions. Approximately 25% of cardiologists use valid or formal indicators to prescribe PA. Cardiologist with CVRF perform less PA than the rest. It is observed that PA prescription is influenced by PA degree performed by the physician. Lack of training seems to be the biggest obstacle to PA prescription generalization.
n % Cardiologists 299 100 MaleFemale 195104 65,2234,78 Sector Private 172 58,11 Public 26 8,78 Both 98 33,11 Cardiovascular risk factors Hypertension 61 20,33 Dyslipidemia 59 19,67 Diabetes 15 5,00 Smoking 23 7,67 Overweight 84 28 Coronary heart disease 11 3,67
Collapse
Affiliation(s)
- I Davolos
- Argentine Society of Cardiology (SAC), Buenos Aires, Argentina
| | - J Franchella
- Argentine Society of Cardiology (SAC), Buenos Aires, Argentina
| | - D Iglesias
- Argentine Society of Cardiology (SAC), Buenos Aires, Argentina
| | - I Paz
- Argentine Society of Cardiology (SAC), Buenos Aires, Argentina
| | - G Sayavedra
- Argentine Society of Cardiology (SAC), Buenos Aires, Argentina
| | - B Sotelo
- Argentine Society of Cardiology (SAC), Buenos Aires, Argentina
| | - A Gelormini
- Argentine Society of Cardiology (SAC), Buenos Aires, Argentina
| | - C Pappalettere
- Argentine Society of Cardiology (SAC), Buenos Aires, Argentina
| | - C Bucay
- Argentine Society of Cardiology (SAC), Buenos Aires, Argentina
| | - G Castiello
- Argentine Society of Cardiology (SAC), Buenos Aires, Argentina
| | - E Gonzalez Naya
- Argentine Society of Cardiology (SAC), Buenos Aires, Argentina
| | - P Stuart
- Argentine Society of Cardiology (SAC), Buenos Aires, Argentina
| | - E Filosa
- Argentine Society of Cardiology (SAC), Buenos Aires, Argentina
| | | | - G Diaz Babio
- Argentine Society of Cardiology (SAC), Buenos Aires, Argentina
| |
Collapse
|
11
|
Ippolito S, Kelly AG, Furlan de Oliveira R, Stoeckel MA, Iglesias D, Roy A, Downing C, Bian Z, Lombardi L, Samad YA, Nicolosi V, Ferrari AC, Coleman JN, Samorì P. Covalently interconnected transition metal dichalcogenide networks via defect engineering for high-performance electronic devices. Nat Nanotechnol 2021; 16:592-598. [PMID: 33633405 DOI: 10.1038/s41565-021-00857-9] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2020] [Accepted: 01/15/2021] [Indexed: 06/12/2023]
Abstract
Solution-processed semiconducting transition metal dichalcogenides are at the centre of an ever-increasing research effort in printed (opto)electronics. However, device performance is limited by structural defects resulting from the exfoliation process and poor inter-flake electronic connectivity. Here, we report a new molecular strategy to boost the electrical performance of transition metal dichalcogenide-based devices via the use of dithiolated conjugated molecules, to simultaneously heal sulfur vacancies in solution-processed transition metal disulfides and covalently bridge adjacent flakes, thereby promoting percolation pathways for the charge transport. We achieve a reproducible increase by one order of magnitude in field-effect mobility (µFE), current ratio (ION/IOFF) and switching time (τS) for liquid-gated transistors, reaching 10-2 cm2 V-1 s-1, 104 and 18 ms, respectively. Our functionalization strategy is a universal route to simultaneously enhance the electronic connectivity in transition metal disulfide networks and tailor on demand their physicochemical properties according to the envisioned applications.
Collapse
Affiliation(s)
- Stefano Ippolito
- Université de Strasbourg, CNRS, ISIS UMR 7006, Strasbourg, France
| | - Adam G Kelly
- School of Physics, Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and Bioengineering Research (AMBER), Trinity College Dublin, Dublin, Ireland
| | | | | | - Daniel Iglesias
- Université de Strasbourg, CNRS, ISIS UMR 7006, Strasbourg, France
| | - Ahin Roy
- School of Chemistry, Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and Bioengineering Research (AMBER), Trinity College Dublin, Dublin, Ireland
| | - Clive Downing
- School of Chemistry, Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and Bioengineering Research (AMBER), Trinity College Dublin, Dublin, Ireland
| | - Zan Bian
- Cambridge Graphene Centre, Cambridge University, Cambridge, United Kingdom
| | - Lucia Lombardi
- Cambridge Graphene Centre, Cambridge University, Cambridge, United Kingdom
| | - Yarjan Abdul Samad
- Cambridge Graphene Centre, Cambridge University, Cambridge, United Kingdom
| | - Valeria Nicolosi
- School of Chemistry, Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and Bioengineering Research (AMBER), Trinity College Dublin, Dublin, Ireland
| | - Andrea C Ferrari
- Cambridge Graphene Centre, Cambridge University, Cambridge, United Kingdom
| | - Jonathan N Coleman
- School of Physics, Centre for Research on Adaptive Nanostructures and Nanodevices (CRANN) and Advanced Materials and Bioengineering Research (AMBER), Trinity College Dublin, Dublin, Ireland
| | - Paolo Samorì
- Université de Strasbourg, CNRS, ISIS UMR 7006, Strasbourg, France.
| |
Collapse
|
12
|
Reina G, Iglesias D, Samorì P, Bianco A. Graphene: A Disruptive Opportunity for COVID-19 and Future Pandemics? Adv Mater 2021; 33:e2007847. [PMID: 33538037 PMCID: PMC7995107 DOI: 10.1002/adma.202007847] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/18/2020] [Revised: 12/14/2020] [Indexed: 05/19/2023]
Abstract
The graphene revolution, which has taken place during the last 15 years, has represented a paradigm shift for science. The extraordinary properties possessed by this unique material have paved the road to a number of applications in materials science, optoelectronics, energy, and sensing. Graphene-related materials (GRMs) are now produced in large scale and have found niche applications also in the biomedical technologies, defining new standards for drug delivery and biosensing. Such advances position GRMs as novel tools to fight against the current COVID-19 and future pandemics. In this regard, GRMs can play a major role in sensing, as an active component in antiviral surfaces or in virucidal formulations. Herein, the most promising strategies reported in the literature on the use of GRM-based materials against the COVID-19 pandemic and other types of viruses are showcased, with a strong focus on the impact of functionalization, deposition techniques, and integration into devices and surface coatings.
Collapse
Affiliation(s)
- Giacomo Reina
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR 3572University of Strasbourg, ISISStrasbourg67000France
| | | | - Paolo Samorì
- University of Strasbourg, CNRS, ISISStrasbourg67000France
| | - Alberto Bianco
- CNRS, Immunology, Immunopathology and Therapeutic Chemistry, UPR 3572University of Strasbourg, ISISStrasbourg67000France
- University of Strasbourg, CNRS, ISISStrasbourg67000France
| |
Collapse
|
13
|
Garcia AM, Melchionna M, Bellotto O, Kralj S, Semeraro S, Parisi E, Iglesias D, D’Andrea P, De Zorzi R, Vargiu AV, Marchesan S. Nanoscale Assembly of Functional Peptides with Divergent Programming Elements. ACS Nano 2021; 15:3015-3025. [PMID: 33576622 PMCID: PMC8023796 DOI: 10.1021/acsnano.0c09386] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 02/05/2021] [Indexed: 06/12/2023]
Abstract
Self-assembling peptides are being applied both in the biomedical area and as building blocks in nanotechnology. Their applications are closely linked to their modes of self-assembly, which determine the functional nanostructures that they form. This work brings together two structural elements that direct nanoscale self-association in divergent directions: proline as a β-breaker and the β-structure-associated diphenylalanine motif, into a single tripeptide sequence. Amino acid chirality was found to resolve the tension inherent to these conflicting self-assembly instructions. Stereoconfiguration determined the ability of each of the eight possible Pro-Phe-Phe stereoisomers to self-associate into diverse nanostructures, including nanoparticles, nanotapes, or fibrils, which yielded hydrogels with gel-to-sol transition at a physiologically relevant temperature. Three single-crystal structures and all-atom molecular dynamics simulations elucidated the ability of each peptide to establish key interactions to form long-range assemblies (i,e., stacks leading to gelling fibrils), medium-range assemblies (i.e., stacks yielding nanotapes), or short-range assemblies (i.e., dimers or trimers that further associated into nanoparticles). Importantly, diphenylalanine is known to serve as a binding site for pathological amyloids, potentially allowing these heterochiral systems to influence the fibrillization of other biologically relevant peptides. To probe this hypothesis, all eight Pro-Phe-Phe stereoisomers were tested in vitro on the Alzheimer's disease-associated Aβ(1-42) peptide. Indeed, one nonfibril-forming stereoisomer effectively inhibited Aβ fibrillization through multivalent binding between diphenylalanine motifs. This work thus defined heterochirality as a useful feature to strategically develop future therapeutics to interfere with pathological processes, with the additional value of resistance to protease-mediated degradation and biocompatibility.
Collapse
Affiliation(s)
- Ana M. Garcia
- Chemical
and Pharmaceutical Sciences Department, University of Trieste, Via Giorgieri 1, 34127 Trieste, Italy
| | - Michele Melchionna
- Chemical
and Pharmaceutical Sciences Department, University of Trieste, Via Giorgieri 1, 34127 Trieste, Italy
- INSTM, University of Trieste, Via Giorgieri 1, 34127 Trieste, Italy
| | - Ottavia Bellotto
- Chemical
and Pharmaceutical Sciences Department, University of Trieste, Via Giorgieri 1, 34127 Trieste, Italy
| | - Slavko Kralj
- Chemical
and Pharmaceutical Sciences Department, University of Trieste, Via Giorgieri 1, 34127 Trieste, Italy
- Materials
Synthesis Department, Jožef Stefan
Institute, Jamova 39, 1000 Ljubljana, Slovenia
| | - Sabrina Semeraro
- Chemical
and Pharmaceutical Sciences Department, University of Trieste, Via Giorgieri 1, 34127 Trieste, Italy
| | - Evelina Parisi
- Chemical
and Pharmaceutical Sciences Department, University of Trieste, Via Giorgieri 1, 34127 Trieste, Italy
| | - Daniel Iglesias
- Chemical
and Pharmaceutical Sciences Department, University of Trieste, Via Giorgieri 1, 34127 Trieste, Italy
| | - Paola D’Andrea
- Life
Sciences Department, University of Trieste, Via Giorgieri 1, 34127 Trieste, Italy
| | - Rita De Zorzi
- Chemical
and Pharmaceutical Sciences Department, University of Trieste, Via Giorgieri 1, 34127 Trieste, Italy
| | - Attilio V. Vargiu
- Physics
Department, University of Cagliari, S.P. 8, km. 0.700, 09042 Monserrato, Italy
| | - Silvia Marchesan
- Chemical
and Pharmaceutical Sciences Department, University of Trieste, Via Giorgieri 1, 34127 Trieste, Italy
- INSTM, University of Trieste, Via Giorgieri 1, 34127 Trieste, Italy
| |
Collapse
|
14
|
Kralj S, Bellotto O, Parisi E, Garcia AM, Iglesias D, Semeraro S, Deganutti C, D’Andrea P, Vargiu AV, Geremia S, De Zorzi R, Marchesan S. Heterochirality and Halogenation Control Phe-Phe Hierarchical Assembly. ACS Nano 2020; 14:16951-16961. [PMID: 33175503 PMCID: PMC7872421 DOI: 10.1021/acsnano.0c06041] [Citation(s) in RCA: 58] [Impact Index Per Article: 14.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2020] [Accepted: 10/30/2020] [Indexed: 05/05/2023]
Abstract
Diphenylalanine is an amyloidogenic building block that can form a versatile array of supramolecular materials. Its shortcomings, however, include the uncontrolled hierarchical assembly into microtubes of heterogeneous size distribution and well-known cytotoxicity. This study rationalized heterochirality as a successful strategy to address both of these pitfalls and it provided an unprotected heterochiral dipeptide that self-organized into a homogeneous and optically clear hydrogel with excellent ability to sustain fibroblast cell proliferation and viability. Substitution of one l-amino acid with its d-enantiomer preserved the ability of the dipeptide to self-organize into nanotubes, as shown by single-crystal XRD analysis, whereby the pattern of electrostatic and hydrogen bonding interactions of the backbone was unaltered. The effect of heterochirality was manifested in subtle changes in the positioning of the aromatic side chains, which resulted in weaker intermolecular interactions between nanotubes. As a result, d-Phe-l-Phe self-organized into homogeneous nanofibrils with a diameter of 4 nm, corresponding to two layers of peptides around a water channel, and yielded a transparent hydrogel. In contrast with homochiral Phe-Phe stereoisomer, it formed stable hydrogels thermoreversibly. d-Phe-l-Phe displayed no amyloid toxicity in cell cultures with fibroblast cells proliferating in high numbers and viability on this biomaterial, marking it as a preferred substrate over tissue-culture plastic. Halogenation also enabled the tailoring of d-Phe-l-Phe self-organization. Fluorination allowed analogous supramolecular packing as confirmed by XRD, thus nanotube formation, and gave intermediate levels of bundling. In contrast, iodination was the most effective strategy to augment the stability of the resulting hydrogel, although at the expense of optical transparency and biocompatibility. Interestingly, iodine presence hindered the supramolecular packing into nanotubes, resulting instead into amphipathic layers of stacked peptides without the occurrence of halogen bonding. By unravelling fine details to control these materials at the meso- and macro-scale, this study significantly advanced our understanding of these systems.
Collapse
Affiliation(s)
- Slavko Kralj
- Chemical
and Pharmaceutical Sciences Department, University of Trieste, Via Giorgieri 1, 34127 Trieste, Italy
- Materials
Synthesis Department, Jožef Stefan
Institute, Jamova 39, 1000 Ljubljana, Slovenia
| | - Ottavia Bellotto
- Chemical
and Pharmaceutical Sciences Department, University of Trieste, Via Giorgieri 1, 34127 Trieste, Italy
| | - Evelina Parisi
- Chemical
and Pharmaceutical Sciences Department, University of Trieste, Via Giorgieri 1, 34127 Trieste, Italy
| | - Ana M. Garcia
- Chemical
and Pharmaceutical Sciences Department, University of Trieste, Via Giorgieri 1, 34127 Trieste, Italy
| | - Daniel Iglesias
- Chemical
and Pharmaceutical Sciences Department, University of Trieste, Via Giorgieri 1, 34127 Trieste, Italy
| | - Sabrina Semeraro
- Chemical
and Pharmaceutical Sciences Department, University of Trieste, Via Giorgieri 1, 34127 Trieste, Italy
| | - Caterina Deganutti
- Chemical
and Pharmaceutical Sciences Department, University of Trieste, Via Giorgieri 1, 34127 Trieste, Italy
| | - Paola D’Andrea
- Life
Sciences Department, University of Trieste, Via Giorgieri 1, 34127 Trieste, Italy
| | - Attilio V. Vargiu
- Physics
Department, University of Cagliari, s.p. 8, km. 0.700, 09042 Monserrato, Italy
| | - Silvano Geremia
- Chemical
and Pharmaceutical Sciences Department, University of Trieste, Via Giorgieri 1, 34127 Trieste, Italy
| | - Rita De Zorzi
- Chemical
and Pharmaceutical Sciences Department, University of Trieste, Via Giorgieri 1, 34127 Trieste, Italy
| | - Silvia Marchesan
- Chemical
and Pharmaceutical Sciences Department, University of Trieste, Via Giorgieri 1, 34127 Trieste, Italy
| |
Collapse
|
15
|
Janica I, Iglesias D, Ippolito S, Ciesielski A, Samorì P. Effect of temperature and exfoliation time on the properties of chemically exfoliated MoS 2 nanosheets. Chem Commun (Camb) 2020; 56:15573-15576. [PMID: 33244537 DOI: 10.1039/d0cc06792j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Abstract
A systematic investigation of the experimental conditions for the chemical exfoliation of MoS2 using n-butyllithium as intercalating agent has been carried out to unravel the effect of reaction time and temperature for maximizing the percentage of monolayer thick-flakes and achieve a control over the content of metallic 1T vs. semiconductive 2H phases, thereby tuning the electrical properties of ultrathin MoS2 few-layer thick films.
Collapse
Affiliation(s)
- Iwona Janica
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland
| | | | | | | | | |
Collapse
|
16
|
Iglesias D, Guerra J, Lucío MI, González-Cano RC, López Navarrete JT, Ruiz Delgado MC, Vázquez E, Herrero MA. Microwave-assisted functionalization of carbon nanohorns with oligothiophene units with SERS activity. Chem Commun (Camb) 2020; 56:8948-8951. [PMID: 32638759 DOI: 10.1039/d0cc03496g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Carbon nanohorns have been functionalized with oligothiophene units via the 1,3-dipolar cycloaddition reaction under microwave irradiation and solvent-free conditions. A dramatic Raman enhancement was found for one of the synthesized derivatives. Experimental and in silico studies helped to understand the enhancement, attributed to the modification of electromagnetic fields upon functionalization at the tip of the nanostructures.
Collapse
Affiliation(s)
- Daniel Iglesias
- Université de Strasbourg, CNRS, ISIS, 8 Allée Gaspard Monge, 67000 Strasbourg, France
| | | | | | | | | | | | | | | |
Collapse
|
17
|
Sinno A, Pinkerton J, Febbraro T, Jones N, Khanna N, Temkin S, Iglesias D, Pothuri B. Hormone therapy (HT) in women with gynecologic cancers and in women at high risk for developing a gynecologic cancer: A Society of Gynecologic Oncology (SGO) clinical practice statement. Gynecol Oncol 2020; 157:303-306. [DOI: 10.1016/j.ygyno.2020.01.035] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2019] [Revised: 01/22/2020] [Accepted: 01/23/2020] [Indexed: 10/25/2022]
|
18
|
Iglesias D, Ippolito S, Ciesielski A, Samorì P. Simultaneous non-covalent bi-functionalization of 1T-MoS2 ruled by electrostatic interactions: towards multi-responsive materials. Chem Commun (Camb) 2020; 56:6878-6881. [DOI: 10.1039/d0cc02371j] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dual functionalization of chemically exfoliated MoS2 has been achieved by exploiting coulombic interactions among positively charged molecules and the negatively charged 2D flakes.
Collapse
Affiliation(s)
- Daniel Iglesias
- Université de Strasbourg, CNRS, ISIS, 8 allée Gaspard Monge
- Strasbourg
- France
| | - Stefano Ippolito
- Université de Strasbourg, CNRS, ISIS, 8 allée Gaspard Monge
- Strasbourg
- France
| | - Artur Ciesielski
- Université de Strasbourg, CNRS, ISIS, 8 allée Gaspard Monge
- Strasbourg
- France
| | - Paolo Samorì
- Université de Strasbourg, CNRS, ISIS, 8 allée Gaspard Monge
- Strasbourg
- France
| |
Collapse
|
19
|
Chirino DA, Guthmann MG, Iglesias D, Volverg V, Dizeo C, Calderon G. P1811Association between the autonomic dysfunction and biomarker levels in patients with chagas disease without evidence of structural heart disease. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
Several studies have shown autonomic dysfunction in early stages of Chagas disease (ChD). These alterations may be involved in the progression of the disease. The Valsalva Ratio (VR) is one of the most used tests to evaluate parasympathetic function, because it is easy and reproducible. On the other hand, the Higth Sensitive T troponin (HS-TnT) and the N-terminal pro B-type natriuretic peptide (NT-proBNP) are specific markers of myocardial damage and elevation of filling pressures, respectively. Both elevations are asociated with higher risk.
The association between autonomic dysfunction and biomarker levels in ChD without evidence of structural heart affection, has been poorly studied.
Purpose
The aim of this study is to evaluate the presence of abnormal VR as an expression of disanutonomy in patients with Chagas without evidence of structural heart disease and its association with HS-TnT and NT-proBNP levels.
Methods
A prospective study was performed, which included outpatients with positive serology for Chagas, with electrocardiogram, ergometry, holter and Doppler echocardiogram within normal parameters. The exclusion criteria were the following: history of ischemic heart disease, neurological diseases, chronic renal failure (clearence <30 ml/min), arterial hypertension and diabetes mellitus. All patients underwent a valsalva maneuver (VM), with continuous recording of the R-R interval by electrocardiogram. The VR was calculated dividing the longest RR interval after VM over the shortest RR interval during VM. Abnormal VR was considerated as a value <1.1. In addition, HS-TnT and NT-proBNP were measured in all patients.
Results
One hundred and forty four patients were included, with 45±8 years old, 44% fameles. The VR was 1.22±0.12, HS-TnT 6.44±3.8 ng/L and the NT-proBNP was 55±44 pg/ml. Abnormal VR was found in 29.1% of patients (n=42).
The abnormal VR group showed a higher level of HS-TnT (8.11±3.8 versus 5.7±3.5 ng/L, p=0.0006) and higher level of NT-proBNP (78±54 versus 45±36 pg/ml, p<0.0001). In addition, the abnormal VR group presented a greater E/e'ratio (9.48±2.5 versus 7.1±1.8, p<0.0001) and greater s wave (0.08±0.02 versus 0.10±0.02 cm/sec, p=0.02).
In the multivariate análisis, abnormal VR was asociated with higher HS-TnT (OR 1.22 (CI 95% 1.04–1.43), p=0.01) and higher E/e'ratio (OR 1.54 (CI95% 1.17–2.02), p=0.001), but not with NT-proBNP (p=0,09).
Conclusions
About one third of patients with ChD without evidence of cardiopaty had autonomic dysfunction. The patients with abnormal VR had higher leves of HS-TnT and NT-proBNP, but in the multivariate analisys only the HS-TnT had associated with abnormal VR.
Collapse
Affiliation(s)
| | | | - D Iglesias
- Sanatorio Franchin, Buenos Aires, Argentina
| | - V Volverg
- Sanatorio Franchin, Buenos Aires, Argentina
| | - C Dizeo
- Sanatorio Franchin, Buenos Aires, Argentina
| | - G Calderon
- Sanatorio Franchin, Buenos Aires, Argentina
| |
Collapse
|
20
|
Kieffer M, Garcia AM, Haynes CJE, Kralj S, Iglesias D, Nitschke JR, Marchesan S. Embedding and Positioning of Two Fe II4 L 4 Cages in Supramolecular Tripeptide Gels for Selective Chemical Segregation. Angew Chem Int Ed Engl 2019; 58:7982-7986. [PMID: 30921499 PMCID: PMC6563161 DOI: 10.1002/anie.201900429] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Indexed: 12/27/2022]
Abstract
An unreported d,l-tripeptide self-assembled into gels that embedded FeII4 L4 metal-organic cages to form materials that were characterized by TEM, EDX, Raman spectroscopy, rheometry, UV/Vis and NMR spectroscopy, and circular dichroism. The cage type and concentration modulated gel viscoelasticity, and thus the diffusion rate of molecular guests through the nanostructured matrix, as gauged by 19 F and 1 H NMR spectroscopy. When two different cages were added to spatially separated gel layers, the gel-cage composite material enabled the spatial segregation of a mixture of guests that diffused into the gel. Each cage selectively encapsulated its preferred guest during diffusion. We thus present a new strategy for using nested supramolecular interactions to enable the separation of small molecules.
Collapse
Affiliation(s)
- Marion Kieffer
- Department of ChemistryUniversity of CambridgeLensfield RoadCambridgeCB2 1EWUK
| | - Ana M. Garcia
- Department of Chemical and Pharmaceutical SciencesUniversity of TriesteVia L. Giorgieri 134127TriesteItaly
| | - Cally J. E. Haynes
- Department of ChemistryUniversity of CambridgeLensfield RoadCambridgeCB2 1EWUK
| | - Slavko Kralj
- Department of Chemical and Pharmaceutical SciencesUniversity of TriesteVia L. Giorgieri 134127TriesteItaly
- Materials Synthesis DepartmentJožef Stefan InstituteJamova 391000LjubljanaSlovenia
| | - Daniel Iglesias
- Department of Chemical and Pharmaceutical SciencesUniversity of TriesteVia L. Giorgieri 134127TriesteItaly
| | | | - Silvia Marchesan
- Department of Chemical and Pharmaceutical SciencesUniversity of TriesteVia L. Giorgieri 134127TriesteItaly
| |
Collapse
|
21
|
Kieffer M, Garcia AM, Haynes CJE, Kralj S, Iglesias D, Nitschke JR, Marchesan S. Embedding and Positioning of Two Fe
II
4
L
4
Cages in Supramolecular Tripeptide Gels for Selective Chemical Segregation. Angew Chem Int Ed Engl 2019. [DOI: 10.1002/ange.201900429] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Affiliation(s)
- Marion Kieffer
- Department of Chemistry University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Ana M. Garcia
- Department of Chemical and Pharmaceutical Sciences University of Trieste Via L. Giorgieri 1 34127 Trieste Italy
| | - Cally J. E. Haynes
- Department of Chemistry University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Slavko Kralj
- Department of Chemical and Pharmaceutical Sciences University of Trieste Via L. Giorgieri 1 34127 Trieste Italy
- Materials Synthesis Department Jožef Stefan Institute Jamova 39 1000 Ljubljana Slovenia
| | - Daniel Iglesias
- Department of Chemical and Pharmaceutical Sciences University of Trieste Via L. Giorgieri 1 34127 Trieste Italy
| | - Jonathan R. Nitschke
- Department of Chemistry University of Cambridge Lensfield Road Cambridge CB2 1EW UK
| | - Silvia Marchesan
- Department of Chemical and Pharmaceutical Sciences University of Trieste Via L. Giorgieri 1 34127 Trieste Italy
| |
Collapse
|
22
|
Gaspar J, Coenen J, Corre Y, Dejarnac R, Firdaouss M, Clairet F, Gunn J, Iglesias D, Komm M, Krieger K, Matthews G, Pitts R, Silburn S. Heat flux analysis of Type-I ELM impact on a sloped, protruding surface in the JET bulk tungsten divertor. Nuclear Materials and Energy 2018. [DOI: 10.1016/j.nme.2018.10.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
23
|
Garcia AM, Iglesias D, Parisi E, Styan KE, Waddington LJ, Deganutti C, De Zorzi R, Grassi M, Melchionna M, Vargiu AV, Marchesan S. Chirality Effects on Peptide Self-Assembly Unraveled from Molecules to Materials. Chem 2018. [DOI: 10.1016/j.chempr.2018.05.016] [Citation(s) in RCA: 76] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
|
24
|
Garcia Acuna JM, Iglesias D, Abou CH, Agra R, Alvarez B, Cid B, Roman Rego A, Rigueiro Veloso P, Pedreira M, Lopez Lago A, Gonzalez Juanatey JR. P6396Impact on mortality and heart failure of early versus delayed revascularization in acute coronary syndrome without persistent ST-segment elevation. A propensity score analysis. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.p6396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Affiliation(s)
- J M Garcia Acuna
- University Hospital of Santiago de Compostela, Cardiology and Coronary Care Unit, Santiago de Compostela, Spain
| | - D Iglesias
- University Hospital of Santiago de Compostela, Cardiology and Coronary Care Unit, Santiago de Compostela, Spain
| | - C H Abou
- University Hospital of Santiago de Compostela, Cardiology and Coronary Care Unit, Santiago de Compostela, Spain
| | - R Agra
- University Hospital of Santiago de Compostela, Cardiology and Coronary Care Unit, Santiago de Compostela, Spain
| | - B Alvarez
- University Hospital of Santiago de Compostela, Cardiology and Coronary Care Unit, Santiago de Compostela, Spain
| | - B Cid
- University Hospital of Santiago de Compostela, Cardiology and Coronary Care Unit, Santiago de Compostela, Spain
| | - A Roman Rego
- University Hospital of Santiago de Compostela, Cardiology and Coronary Care Unit, Santiago de Compostela, Spain
| | - P Rigueiro Veloso
- University Hospital of Santiago de Compostela, Cardiology and Coronary Care Unit, Santiago de Compostela, Spain
| | - M Pedreira
- University Hospital of Santiago de Compostela, Cardiology and Coronary Care Unit, Santiago de Compostela, Spain
| | - A Lopez Lago
- University Hospital of Santiago de Compostela, Cardiology and Coronary Care Unit, Santiago de Compostela, Spain
| | - J R Gonzalez Juanatey
- University Hospital of Santiago de Compostela, Cardiology and Coronary Care Unit, Santiago de Compostela, Spain
| | | |
Collapse
|
25
|
Iglesias D, Melle-Franco M, Kurbasic M, Melchionna M, Abrami M, Grassi M, Prato M, Marchesan S. Oxidized Nanocarbons-Tripeptide Supramolecular Hydrogels: Shape Matters! ACS Nano 2018; 12:5530-5538. [PMID: 29787672 DOI: 10.1021/acsnano.8b01182] [Citation(s) in RCA: 51] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/21/2023]
Abstract
Short peptide hydrogels are attractive biomaterials but typically suffer from limited mechanical properties. Inclusion of other nanomaterials can serve the dual purpose of hydrogel reinforcement and of conferring additional physicochemical properties ( e. g., self-healing, conductivity), as long as they do not hamper peptide self-assembly. In particular, nanocarbons are ideal candidates, and their physicochemical properties have demonstrated great potential in nanocarbon-polymer gel biomaterials for tissue engineering or drug delivery. Recently, increasing interest in supramolecular hydrogels drove research also on their enhancement with nanocarbons. However, little is known on the effect of nanocarbon morphology on the self-assembly of short peptides, which are among the most popular hydrogel building blocks. In this work, three different oxidized nanocarbons ( i. e., carbon nanotube or CNT as 1D material, graphene oxide sheet or GO as 2D material, and carbon nanohorn or CNH as 3D material) were evaluated for their effects on the self-assembly of the unprotected tripeptide Leu-DPhe-DPhe at physiological conditions. Supramolecular hydrogels were obtained in all cases, and viscoelastic properties were clearly affected by the nanocarbons, which increased stiffness and resistance to applied stress. Notably, self-healing behavior was observed only in the case of CNTs. Tripeptide-nanotube interaction was noted already in solution prior to self-assembly, with the tripeptide acting as a dispersing agent in phosphate buffer. Experimental and in silico investigation of the interaction between peptide and CNTs suggests that the latter acts as nucleation templates for self-assembly and reassembly. Overall, we provide useful insights for the future design of composite biomaterials with acquired properties.
Collapse
Affiliation(s)
- Daniel Iglesias
- Dipartimento di Scienze Chimiche e Farmaceutiche , Università di Trieste , Via L. Giorgieri 1 , 34127 Trieste , Italy
| | | | - Marina Kurbasic
- Dipartimento di Scienze Chimiche e Farmaceutiche , Università di Trieste , Via L. Giorgieri 1 , 34127 Trieste , Italy
| | - Michele Melchionna
- Dipartimento di Scienze Chimiche e Farmaceutiche , Università di Trieste , Via L. Giorgieri 1 , 34127 Trieste , Italy
| | - Michela Abrami
- Dipartimento di Ingegneria e Architettura , Università di Trieste , V. Valerio 6/1 , 34127 Trieste , Italy
| | - Mario Grassi
- Dipartimento di Ingegneria e Architettura , Università di Trieste , V. Valerio 6/1 , 34127 Trieste , Italy
| | - Maurizio Prato
- Dipartimento di Scienze Chimiche e Farmaceutiche , Università di Trieste , Via L. Giorgieri 1 , 34127 Trieste , Italy
- Carbon Nanobiotechnology Laboratory , CIC biomaGUNE , Paseo de Miramón 182 , 20009 Donostia-San Sebastian , Spain
- Basque Foundation for Science , Ikerbasque , Bilbao 48013 , Spain
| | - Silvia Marchesan
- Dipartimento di Scienze Chimiche e Farmaceutiche , Università di Trieste , Via L. Giorgieri 1 , 34127 Trieste , Italy
| |
Collapse
|
26
|
Häusler T, Gebhardt P, Iglesias D, Rameshan C, Marchesan S, Eder D, Grothe H. Ice Nucleation Activity of Graphene and Graphene Oxides. J Phys Chem C Nanomater Interfaces 2018; 122:8182-8190. [PMID: 29707097 PMCID: PMC5911803 DOI: 10.1021/acs.jpcc.7b10675] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/28/2017] [Revised: 02/23/2018] [Indexed: 05/27/2023]
Abstract
Aerosols can act as cloud condensation nuclei and/or ice-nucleating particles (INPs), influencing cloud properties. In particular, INPs show a variety of different and complex mechanisms when interacting with water during the freezing process. To gain a fundamental understanding of the heterogeneous freezing mechanisms, studies with proxies for atmospheric INPs must be performed. Graphene and its derivatives offer suitable model systems for soot particles, which are ubiquitous aerosols in the atmosphere. In this work, we present an investigation of the ice nucleation activity (INA) of different types of graphene and graphene oxides. Immersion droplet freezing experiments as well as additional analytical analyses, such as X-ray photoelectron spectroscopy, Raman spectroscopy, and transmission electron microscopy, were performed. We show within a group of samples that a highly ordered graphene lattice (Raman G band intensity >50%) can support ice nucleation more effectively than a lowly ordered graphene lattice (Raman G band intensity <20%). Ammonia-functionalized graphene revealed the highest INA of all samples. Atmospheric ammonia is known to play a primary role in the formation of secondary particulate matter, forming ammonium-containing aerosols. The influence of functionalization on interactions between the particle interface and water molecules, as well as on hydrophobicity and agglomeration processes, is discussed.
Collapse
Affiliation(s)
- Thomas Häusler
- Institute
of Materials Chemistry, TU Wien, 1060 Vienna, Austria
| | - Paul Gebhardt
- Institute
of Materials Chemistry, TU Wien, 1060 Vienna, Austria
| | - Daniel Iglesias
- Department
of Chemical and Pharmaceutical Sciences, Università degli studi di Trieste, 34127 Trieste, Italy
| | | | - Silvia Marchesan
- Department
of Chemical and Pharmaceutical Sciences, Università degli studi di Trieste, 34127 Trieste, Italy
| | - Dominik Eder
- Institute
of Materials Chemistry, TU Wien, 1060 Vienna, Austria
| | - Hinrich Grothe
- Institute
of Materials Chemistry, TU Wien, 1060 Vienna, Austria
| |
Collapse
|
27
|
Iglesias D, Senokos E, Alemán B, Cabana L, Navío C, Marcilla R, Prato M, Vilatela JJ, Marchesan S. Gas-Phase Functionalization of Macroscopic Carbon Nanotube Fiber Assemblies: Reaction Control, Electrochemical Properties, and Use for Flexible Supercapacitors. ACS Appl Mater Interfaces 2018; 10:5760-5770. [PMID: 29302960 DOI: 10.1021/acsami.7b15973] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The assembly of aligned carbon nanotubes (CNTs) into fibers (CNTFs) is a convenient approach to exploit and apply the unique physico-chemical properties of CNTs in many fields. CNT functionalization has been extensively used for its implementation into composites and devices. However, CNTF functionalization is still in its infancy because of the challenges associated with preservation of CNTF morphology. Here, we report a thorough study of the gas-phase functionalization of CNTF assemblies using ozone which was generated in situ from a UV source. In contrast with liquid-based oxidation methods, this gas-phase approach preserves CNTF morphology, while notably increasing its hydrophilicity. The functionalized material is thoroughly characterized by Raman spectroscopy, X-ray photoelectron spectroscopy, transmission electron microscopy, and scanning electron microscopy. Its newly acquired hydrophilicity enables CNTF electrochemical characterization in aqueous media, which was not possible for the pristine material. Through comparison of electrochemical measurements in aqueous electrolytes and ionic liquids, we decouple the effects of functionalization on pseudocapacitive reactions and quantum capacitance. The functionalized CNTF assembly is successfully used as an active material and a current collector in all-solid supercapacitor flexible devices with an ionic liquid-based polymer electrolyte.
Collapse
Affiliation(s)
- Daniel Iglesias
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Trieste , Via L. Giorgieri 1, 34127 Trieste, Italy
| | - Evgeny Senokos
- IMDEA Materials Institute , c/Eric Kandel 2, Getafe, 28906 Madrid, Spain
- E. T. S. de Ingenieros de Caminos, Universidad Politécnica de Madrid , 28040 Madrid, Spain
- IMDEA Energy Institute , Parque Tecnológico de Móstoles, Avda. De la Sagra 3, Móstoles, 28935 Madrid, Spain
| | - Belén Alemán
- IMDEA Materials Institute , c/Eric Kandel 2, Getafe, 28906 Madrid, Spain
| | - Laura Cabana
- IMDEA Materials Institute , c/Eric Kandel 2, Getafe, 28906 Madrid, Spain
| | - Cristina Navío
- IMDEA Nanoscience Institute , Faraday 9, Cantoblanco, 28049 Madrid, Spain
| | - Rebeca Marcilla
- IMDEA Energy Institute , Parque Tecnológico de Móstoles, Avda. De la Sagra 3, Móstoles, 28935 Madrid, Spain
| | - Maurizio Prato
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Trieste , Via L. Giorgieri 1, 34127 Trieste, Italy
- Carbon Nanobiotechnology Laboratory, CIC biomaGUNE , Paseo de Miramón 182, 20009 Donostia-San Sebastian, Spain
- Basque Fdn Sci, Ikerbasque , Bilbao 48013, Spain
| | - Juan J Vilatela
- IMDEA Materials Institute , c/Eric Kandel 2, Getafe, 28906 Madrid, Spain
| | - Silvia Marchesan
- Dipartimento di Scienze Chimiche e Farmaceutiche, Università di Trieste , Via L. Giorgieri 1, 34127 Trieste, Italy
| |
Collapse
|
28
|
Iglesias D, Giuliani A, Melchionna M, Marchesan S, Criado A, Nasi L, Bevilacqua M, Tavagnacco C, Vizza F, Prato M, Fornasiero P. N-Doped Graphitized Carbon Nanohorns as a Forefront Electrocatalyst in Highly Selective O2 Reduction to H2O2. Chem 2018. [DOI: 10.1016/j.chempr.2017.10.013] [Citation(s) in RCA: 197] [Impact Index Per Article: 32.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
29
|
Iglesias D, Bunting P, Esquembri S, Hollocombe J, Silburn S, Vitton-Mea L, Balboa I, Huber A, Matthews G, Riccardo V, Rimini F, Valcarcel D. Digital twin applications for the JET divertor. Fusion Engineering and Design 2017. [DOI: 10.1016/j.fusengdes.2017.10.012] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
30
|
Iglesias D, Atienzar P, Vázquez E, Herrero MA, García H. Carbon Nanohorns Modified with Conjugated Terthienyl/Terthiophene Structures: Additives to Enhance the Performance of Dye-Sensitized Solar Cells. Nanomaterials (Basel) 2017; 7:E294. [PMID: 28946677 PMCID: PMC5666459 DOI: 10.3390/nano7100294] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2017] [Revised: 09/15/2017] [Accepted: 09/19/2017] [Indexed: 11/17/2022]
Abstract
A series of carbon nanohorns (CNHs) constituted by the aggregation of about 2000 individual conical graphene tubes (diameters from 2 nm to 5 nm and a length of 40-50 nm) that have been modified with dyes of two, three, or four terthienyl groups has been prepared by adsorbing the corresponding dye on the CNH. Persistent inks in o-dichlorobenzene (o-DCB) of these dye-CNH conjugates were obtained by laser irradiation of o-DCB suspensions of the dye-CNH solids. These inks were used in combination or not with N719 dye for the preparation of dye-sensitized solar cells (DSSC) of TiO₂. It was measured that the terthienyl dye with the largest conjugation deposited on the CNH additively increased the performance of an analogous TiO₂ cell from an efficiency of 4.07% to 6.24%. This result shows the potential of dye-modified CNHs as additives in the construction of more efficient DSSCs.
Collapse
Affiliation(s)
- Daniel Iglesias
- Departamento de Química Orgánica, Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain.
- Instituto Regional de Investigación Científica Aplicada (IRICA), Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain.
| | - Pedro Atienzar
- Instituto Universitario de Tecnología Química CSIC-UPV, Universitat Politécnica de Valencia, Av. de los Naranjos s/n, 46022 Valencia, Spain.
| | - Ester Vázquez
- Departamento de Química Orgánica, Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain.
- Instituto Regional de Investigación Científica Aplicada (IRICA), Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain.
| | - María Antonia Herrero
- Departamento de Química Orgánica, Facultad de Ciencias y Tecnologías Químicas, Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain.
- Instituto Regional de Investigación Científica Aplicada (IRICA), Universidad de Castilla-La Mancha, 13071 Ciudad Real, Spain.
| | - Hermenegildo García
- Instituto Universitario de Tecnología Química CSIC-UPV, Universitat Politécnica de Valencia, Av. de los Naranjos s/n, 46022 Valencia, Spain.
| |
Collapse
|
31
|
Pitts R, Bardin S, Bazylev B, van den Berg M, Bunting P, Carpentier-Chouchana S, Coenen J, Corre Y, Dejarnac R, Escourbiac F, Gaspar J, Gunn J, Hirai T, Hong SH, Horacek J, Iglesias D, Komm M, Krieger K, Lasnier C, Matthews G, Morgan T, Panayotis S, Pestchanyi S, Podolnik A, Nygren R, Rudakov D, De Temmerman G, Vondracek P, Watkins J. Physics conclusions in support of ITER W divertor monoblock shaping. Nuclear Materials and Energy 2017. [DOI: 10.1016/j.nme.2017.03.005] [Citation(s) in RCA: 106] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
32
|
Saha A, Moya A, Kahnt A, Iglesias D, Marchesan S, Wannemacher R, Prato M, Vilatela JJ, Guldi DM. Interfacial charge transfer in functionalized multi-walled carbon nanotube@TiO 2 nanofibres. Nanoscale 2017; 9:7911-7921. [PMID: 28569304 DOI: 10.1039/c7nr00759k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
A new insight into photoinduced charge transfer processes across carbon nanotube@TiO2 interfaces has been gained based on experimental details from transient absorption spectroscopy. We show that photoinduced, interfacial hole transfer to carboxylic acid-functionalized multiwalled carbon nanotubes (oxMWCNTs) from TiO2 results in hole-doped oxMWCNTs and reduced TiO2. The latter is inferred from femto- and nanosecond transient absorption spectroscopy performed with oxMWCNT@TiO2 dispersions and complemented with investigations using methyl viologen and N,N,N',N'-tetramethyl-p-phenylenediamine as an electron scavenger and a hole scavenger, respectively. The results of ultraviolet photoemission spectroscopy (UPS) of the compounds corroborate the findings, highlighting the strong coupling between oxMWCNTs and TiO2 in these hybrids.
Collapse
Affiliation(s)
- Avishek Saha
- Department of Chemistry & Pharmacy and Interdisciplinary Center for Molecular Materials, Friedrich Alexander University Erlangen-Nuremberg, Egerlandstrasse 3, 91058 Erlangen, Germany.
| | | | | | | | | | | | | | | | | |
Collapse
|
33
|
Iglesias D, Alvarez B, Garcia-Seara FJ, Martinez-Sande JL, Rodriguez-Manero M, Fernandez-Lopez XA, Gonzalez-Melchor L, Abellas-Sequeiros RA, Gonzalez-Juanatey JR. P443Is there any benefit in adding a defibrillator in elderly patients undergoing cardiac resynchronization therapy device implantation? Europace 2017. [DOI: 10.1093/ehjci/eux141.166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
34
|
Arranz F, Brañas B, Busch M, González M, Muñoz A, Szcepaniak B, Castro L, Galán P, Iglesias D, Lapeña J, López D, Rucandio I, Plaza D, GarcÍa M, Gómez B. Evaluation of the Electroforming Technique for IFMIF-EVEDA Beam Dump Manufacturing. Fusion Science and Technology 2017. [DOI: 10.13182/fst11-a12438] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- F. Arranz
- CIEMAT, Avda. Complutense,22, 28040 Madrid, Spain
| | - B. Brañas
- CIEMAT, Avda. Complutense,22, 28040 Madrid, Spain
| | - M. Busch
- Galvano-T. Raiffeisenstrasse,8. 51570 Windeck-Rosbach. Germany
| | - M. González
- CIEMAT, Avda. Complutense,22, 28040 Madrid, Spain
| | - A. Muñoz
- CIEMAT, Avda. Complutense,22, 28040 Madrid, Spain
| | - B. Szcepaniak
- Galvano-T. Raiffeisenstrasse,8. 51570 Windeck-Rosbach. Germany
| | - L. Castro
- CIEMAT, Avda. Complutense,22, 28040 Madrid, Spain
| | - P. Galán
- CIEMAT, Avda. Complutense,22, 28040 Madrid, Spain
| | - D. Iglesias
- CIEMAT, Avda. Complutense,22, 28040 Madrid, Spain
| | - J. Lapeña
- CIEMAT, Avda. Complutense,22, 28040 Madrid, Spain
| | - D. López
- Dpto. de IngenierÍa Energética, ETSII-UNED, C/Juan del Rosal 12, 28040 Madrid, Spain
- Instituto de Fusión Nuclear, UPM, C/José Gutiérrez Abascal 2, 28006 Madrid, Spain
| | - I. Rucandio
- CIEMAT, Avda. Complutense,22, 28040 Madrid, Spain
| | - D. Plaza
- CIEMAT, Avda. Complutense,22, 28040 Madrid, Spain
| | - M. GarcÍa
- Dpto. de IngenierÍa Energética, ETSII-UNED, C/Juan del Rosal 12, 28040 Madrid, Spain
- Instituto de Fusión Nuclear, UPM, C/José Gutiérrez Abascal 2, 28006 Madrid, Spain
| | - B. Gómez
- CIEMAT, Avda. Complutense,22, 28040 Madrid, Spain
| |
Collapse
|
35
|
Iglesias D, Bosi S, Melchionna M, Da Ros T, Marchesan S. The Glitter of Carbon Nanostructures in Hybrid/Composite Hydrogels for Medicinal Use. Curr Top Med Chem 2017; 16:1976-89. [PMID: 26876524 DOI: 10.2174/1568026616666160215154807] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2015] [Revised: 08/11/2015] [Accepted: 08/19/2015] [Indexed: 11/22/2022]
Abstract
In recent years, we have witnessed to fast developments in the medicinal field of hydrogels containing various forms of integrated nanostructured carbon that adds interesting mechanical, thermal, and electronic properties. Besides key advances in tissue engineering (especially for conductive tissue, such as for the brain and the heart), there has been innovation also in the area of drug delivery on-demand, with engineered hydrogels capable of repeated response to light, thermal, or electric stimuli. This mini-review focusses on the most promising developments as applied to the gelation of protein/ peptide (including self-assembling amino acids and low-molecular-weight gelators), polysaccharide, and/or synthetic polymer components in medicine. The emerging field of graphene-only hydrogels is also briefly discussed, to give the reader a full flavor of the rising new paradigms in medicine that are made possible through the integration of nanostructured carbon (e.g., carbon nanotubes, nanohorns, nanodiamonds, fullerene, etc.). Nanocarbons are offering great opportunities to bring on a revolution in therapy that the modern medicinal chemist needs to master, to realise their full potential into powerful therapeutic solutions for the patient.
Collapse
Affiliation(s)
| | | | | | | | - Silvia Marchesan
- Department of Chemical and Pharmaceutical Sciences, University of Trieste, Via Giorgieri 1, 34127 Trieste, Italy.
| |
Collapse
|
36
|
Piovesana S, Capriotti AL, Cavaliere C, Ferraris F, Iglesias D, Marchesan S, Laganà A. New Magnetic Graphitized Carbon Black TiO2 Composite for Phosphopeptide Selective Enrichment in Shotgun Phosphoproteomics. Anal Chem 2016; 88:12043-12050. [DOI: 10.1021/acs.analchem.6b02345] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Susy Piovesana
- Dipartimento
di Chimica, Sapienza Università di Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Anna Laura Capriotti
- Dipartimento
di Chimica, Sapienza Università di Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Chiara Cavaliere
- Dipartimento
di Chimica, Sapienza Università di Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Francesca Ferraris
- Dipartimento
di Chimica, Sapienza Università di Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy
| | - Daniel Iglesias
- Dipartimento
di Scienze Chimiche e Farmaceutiche, Università di Trieste, Via L. Giorgieri
1, 34127 Trieste, Italy
| | - Silvia Marchesan
- Dipartimento
di Scienze Chimiche e Farmaceutiche, Università di Trieste, Via L. Giorgieri
1, 34127 Trieste, Italy
| | - Aldo Laganà
- Dipartimento
di Chimica, Sapienza Università di Roma, Piazzale Aldo Moro 5, 00185 Rome, Italy
| |
Collapse
|
37
|
Crofts O, Loving A, Iglesias D, Coleman M, Siuko M, Mittwollen M, Queral V, Vale A, Villedieu E. Overview of progress on the European DEMO remote maintenance strategy. Fusion Engineering and Design 2016. [DOI: 10.1016/j.fusengdes.2015.12.013] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
38
|
Díaz S, Iglesias D, Villalba A, Carballal MJ. Long-term epidemiological study of disseminated neoplasia of cockles in Galicia (NW Spain): temporal patterns at individual and population levels, influence of environmental and cockle-based factors and lethality. J Fish Dis 2016; 39:1027-1042. [PMID: 26813312 DOI: 10.1111/jfd.12436] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/28/2015] [Revised: 10/13/2015] [Accepted: 10/14/2015] [Indexed: 06/05/2023]
Abstract
The dynamics of disseminated neoplasia (DN) affecting cockles Cerastoderma edule (L.) in Galicia was addressed at individual and population levels. Early stage of DN was characterized by isolated neoplastic cells occurring in branchial vessels or in the connective tissue of gills, mantle, gonad or digestive gland. As disease progressed, the neoplastic cells appeared loose in foci and became widely distributed throughout the organs. In advanced stages, the connective tissue of most organs was infiltrated by neoplastic cells, which displaced normal cells, leading to the loss of the normal tissue/organ architecture. Host defence reaction was occasionally observed. A field survey performed for 7 years, in two cockle beds located in different Galician Rías, showed that DN is a hyperendemic disease usually present all year-round at high prevalence in adult cockles but with annual prevalence minima in spring likely due to the death of heavily affected cockles, concurrently with gonad ripeness-spawning. DN was detected in the cockles ranging from 10 to 39 mm in size; the highest DN prevalence and severity corresponded to the cockles of intermediate size/age (22-29 mm/0.7-1 year old). Sex did not appear to influence DN occurrence. An inhibitory effect of DN on cockle gametogenesis was detected.
Collapse
Affiliation(s)
- S Díaz
- Centro de Investigacións Mariñas (CIMA), Consellería do Mar da Xunta de Galicia, Vilanova de Arousa, Spain
| | - D Iglesias
- Centro de Investigacións Mariñas (CIMA), Consellería do Mar da Xunta de Galicia, Vilanova de Arousa, Spain
| | - A Villalba
- Centro de Investigacións Mariñas (CIMA), Consellería do Mar da Xunta de Galicia, Vilanova de Arousa, Spain
| | - M J Carballal
- Centro de Investigacións Mariñas (CIMA), Consellería do Mar da Xunta de Galicia, Vilanova de Arousa, Spain
| |
Collapse
|
39
|
Iglesias D, Guerra J, Gómez MV, Rodríguez AM, Prieto P, Vázquez E, Herrero MA. Design of Assembled Systems Based on Conjugated Polyphenylene Derivatives and Carbon Nanohorns. Chemistry 2016; 22:11643-51. [PMID: 27404562 DOI: 10.1002/chem.201601282] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/17/2016] [Indexed: 11/11/2022]
Abstract
Promising materials have been designed and fully characterised by an effective interaction between versatile platforms such as carbon nanohorns (CNHs) and conjugated molecules based on thiophene derivatives. Easy and non-aggressive methods have been described for the synthesis and purification of the final systems. Oligothiophenephenylvinylene (OTP) systems with different geometries and electron density are coupled to the CNHs. A wide range of characterization techniques have been used to confirm the effective interaction between the donor (OTP) and the acceptor (CNH) systems. These hybrid materials show potential for integration into solar cell devices. Importantly, surface-enhanced Raman spectroscopy (SERS) effects are observed without the presence of any metal surface in the system. Theoretical calculations have been performed to study the optimised geometries of the noncovalent interaction between the surface and the organic molecule. The calculations allow information on the monoelectronic energies of HOMO-LUMO orbitals and band gap of different donor systems to be extracted.
Collapse
Affiliation(s)
- Daniel Iglesias
- Departamento de Química Orgánica, Inorgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas, IRICA Universidad de Castilla-La Mancha, Campus Universitario, 13071, Ciudad Real, Spain.,Dipartimento di Scienze Chimiche e Farmaceutiche, Center of Excellence for Nanostructured Materials (CENMAT) & Italian Interuniversity Consortium on Materials Science and Technology (INSTM - Unit of Trieste), Università degli Studi di Trieste, Piazzale Europa 1, 34127, Trieste, Italy
| | - Javier Guerra
- Departamento de Química Orgánica, Inorgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas, IRICA Universidad de Castilla-La Mancha, Campus Universitario, 13071, Ciudad Real, Spain.,Crystal Pharma, a division of AMRI, Parque Tecnológico de Boecillo, Valladolid, 47151, Spain
| | - M Victoria Gómez
- Departamento de Química Orgánica, Inorgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas, IRICA Universidad de Castilla-La Mancha, Campus Universitario, 13071, Ciudad Real, Spain
| | - Antonio M Rodríguez
- Departamento de Química Orgánica, Inorgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas, IRICA Universidad de Castilla-La Mancha, Campus Universitario, 13071, Ciudad Real, Spain.,Università degli Studi di Napoli Federico II - Dipartimento di Scienze Chimiche, Via Cintia 26, Monte Sant'Angelo, 80126, Napoli Campania, Italy
| | - Pilar Prieto
- Departamento de Química Orgánica, Inorgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas, IRICA Universidad de Castilla-La Mancha, Campus Universitario, 13071, Ciudad Real, Spain
| | - Ester Vázquez
- Departamento de Química Orgánica, Inorgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas, IRICA Universidad de Castilla-La Mancha, Campus Universitario, 13071, Ciudad Real, Spain
| | - M Antonia Herrero
- Departamento de Química Orgánica, Inorgánica y Bioquímica, Facultad de Ciencias y Tecnologías Químicas, IRICA Universidad de Castilla-La Mancha, Campus Universitario, 13071, Ciudad Real, Spain.
| |
Collapse
|
40
|
Vargiu AV, Iglesias D, Styan KE, Waddington LJ, Easton CD, Marchesan S. Design of a hydrophobic tripeptide that self-assembles into amphiphilic superstructures forming a hydrogel biomaterial. Chem Commun (Camb) 2016; 52:5912-5. [DOI: 10.1039/c5cc10531e] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
We report the rational design of a heterochiral hydrophobic tripeptide self-assembling into amphiphilic d-superstructures that yield a self-supportive hydrogel at physiological pH.
Collapse
Affiliation(s)
- A. V. Vargiu
- University of Cagliari
- Department of Physics, S. P. Monserrato-Sestu Km. 0.700
- 09042 Monserrato
- Italy
| | - D. Iglesias
- University of Trieste
- Chemical and Pharmaceutical Sc. Dep
- Via L. Giorgieri 1
- 34127 Trieste
- Italy
| | | | | | | | - S. Marchesan
- University of Trieste
- Chemical and Pharmaceutical Sc. Dep
- Via L. Giorgieri 1
- 34127 Trieste
- Italy
| |
Collapse
|
41
|
Iglesias D, Bastow R, Cooper D, Crowe R, Middleton-Gear D, Sibois R, Carloni D, Vizvary Z, Crofts O, Harman J, Loving A. Remote handling assessment of attachment concepts for DEMO blanket segments. Fusion Engineering and Design 2015. [DOI: 10.1016/j.fusengdes.2015.06.176] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
42
|
Vizvary Z, Iglesias D, Cooper D, Crowe R, Riccardo V. Progress on DEMO blanket attachment concept with keys and pins. Fusion Engineering and Design 2015. [DOI: 10.1016/j.fusengdes.2015.04.020] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
|
43
|
Cariddi LN, Sabini MC, Escobar FM, Montironi I, Mañas F, Iglesias D, Comini LR, Sabini LI, Dalcero AM. Polyphenols as possible bioprotectors against cytotoxicity and DNA damage induced by ochratoxin A. Environ Toxicol Pharmacol 2015; 39:1008-1018. [PMID: 25867686 DOI: 10.1016/j.etap.2015.03.013] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2015] [Revised: 03/17/2015] [Accepted: 03/20/2015] [Indexed: 06/04/2023]
Abstract
The present study aimed to investigate the protective effects of luteolin (L), chlorogenic acid (ChlA) and caffeic acid (CafA) against cyto-genotoxic effects caused by OTA. Vero cells and rat lymphocytes were used and viability was measured by neutral red uptake, MTT and trypan blue dye exclusion method. L (50 and 100μg/mL), ChlA (100 and 200μg/mL) and CafA (10-50μg/mL) reduced the damage induced by OTA (10μg/mL) on both cells type shown a good protective effect. The comet and micronucleus tests in Balb/c mice were performed. ChlA (10mg/kg bw) reduced OTA (0.85mg/kg bw)-induced DNA damage on blood and bone marrow cells, CafA (10mg/kg bw) showed protective effect only in blood cells and luteolin (2.5mg/kg bw) failed to protect DNA integrity on cells. In conclusion, polyphenols tested reduced the toxicity caused by OTA on different target cells with good protective effect, being ChlA the compound that showed the best effects.
Collapse
Affiliation(s)
- L N Cariddi
- Departamento de Microbiología e Inmunología, Universidad Nacional de Río Cuarto, Ruta 36 Km 601, Río Cuarto, CP 5800 Córdoba, Argentina; Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Rivadavia 1917, Ciudad Autónoma de Buenos Aires, CP C1033AAJ, Argentina.
| | - M C Sabini
- Departamento de Microbiología e Inmunología, Universidad Nacional de Río Cuarto, Ruta 36 Km 601, Río Cuarto, CP 5800 Córdoba, Argentina; Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Rivadavia 1917, Ciudad Autónoma de Buenos Aires, CP C1033AAJ, Argentina
| | - F M Escobar
- Departamento de Microbiología e Inmunología, Universidad Nacional de Río Cuarto, Ruta 36 Km 601, Río Cuarto, CP 5800 Córdoba, Argentina; Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Rivadavia 1917, Ciudad Autónoma de Buenos Aires, CP C1033AAJ, Argentina
| | - I Montironi
- Departamento de Microbiología e Inmunología, Universidad Nacional de Río Cuarto, Ruta 36 Km 601, Río Cuarto, CP 5800 Córdoba, Argentina
| | - F Mañas
- Cátedra de Farmacología, Universidad Nacional de Río Cuarto, Ruta 36 Km 601, Río Cuarto, CP 5800 Córdoba, Argentina
| | - D Iglesias
- Cátedra de Farmacología, Universidad Nacional de Río Cuarto, Ruta 36 Km 601, Río Cuarto, CP 5800 Córdoba, Argentina
| | - L R Comini
- Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Rivadavia 1917, Ciudad Autónoma de Buenos Aires, CP C1033AAJ, Argentina; Farmacognosia, Departamento de Farmacia, Universidad Nacional de Córdoba (IMBIV-CONICET), Ciudad Universitaria, Córdoba CP 5000, Argentina
| | - L I Sabini
- Departamento de Microbiología e Inmunología, Universidad Nacional de Río Cuarto, Ruta 36 Km 601, Río Cuarto, CP 5800 Córdoba, Argentina
| | - A M Dalcero
- Departamento de Microbiología e Inmunología, Universidad Nacional de Río Cuarto, Ruta 36 Km 601, Río Cuarto, CP 5800 Córdoba, Argentina; Consejo Nacional de Investigaciones Científicas y Tecnológicas (CONICET), Rivadavia 1917, Ciudad Autónoma de Buenos Aires, CP C1033AAJ, Argentina
| |
Collapse
|
44
|
Arranz F, Brañas B, Iglesias D, Nomen O, Rapisarda D, Lapeña J, Muñoz A, Szcepaniak B, Manini J, Gómez J. Manufacturing prototypes for LIPAC beam dump. Fusion Engineering and Design 2014. [DOI: 10.1016/j.fusengdes.2014.01.072] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
45
|
Coleman M, Sykes N, Cooper D, Iglesias D, Bastow R, Loving A, Harman J. Concept for a vertical maintenance remote handling system for multi module blanket segments in DEMO. Fusion Engineering and Design 2014. [DOI: 10.1016/j.fusengdes.2014.02.047] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
46
|
Loving A, Crofts O, Sykes N, Iglesias D, Coleman M, Thomas J, Harman J, Fischer U, Sanz J, Siuko M, Mittwollen M. Pre-conceptual design assessment of DEMO remote maintenance. Fusion Engineering and Design 2014. [DOI: 10.1016/j.fusengdes.2014.04.082] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
|
47
|
Nomen O, Martínez JI, Arranz F, Iglesias D, Barrera G, Brañas B, Ogando F, Molla J, Sanmartí M. Detailed mechanical design of the LIPAc beam dump radiological shielding. Fusion Engineering and Design 2013. [DOI: 10.1016/j.fusengdes.2013.01.105] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
|
48
|
Parro M, Karditsas P, Caloutsis A, Iglesias D, Brañas B, Abánades A. Corrosion and activation analysis of the LIPAC beam dump cooling circuit. Fusion Engineering and Design 2013. [DOI: 10.1016/j.fusengdes.2013.04.010] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
|
49
|
Valbuena S, Iglesias D, Lopez T, Rodriguez O, Gemma D, De Torres Alba F, Salvador O, Buno A, Moreno M, Lopez-Sendon JL. Early detection of cardiotoxicity in patients on cancer therapy: the role of myocardial deformation imaging and biomarkers. Eur Heart J 2013. [DOI: 10.1093/eurheartj/eht310.4574] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
|
50
|
Muñoz M, Iglesias D, Garcia-Erce JA, Cuenca J, Herrera A, Martin-Montañez E, Pavia J. Utility and cost of low-vacuum reinfusion drains in patients undergoing surgery for subcapital hip fracture repair. A before and after cohort study. Vox Sang 2013; 106:83-91. [DOI: 10.1111/vox.12071] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/14/2013] [Revised: 06/18/2013] [Accepted: 06/24/2013] [Indexed: 12/15/2022]
Affiliation(s)
- M. Muñoz
- GIEMSA; Transfusion Medicine; School of Medicine; University of Málaga; Málaga Spain
| | - D. Iglesias
- Department Orthopaedic and Trauma Surgery; University Hospital Miguel Servet; Zaragoza Spain
| | - J. A. Garcia-Erce
- Section of Haematology and Haemotherapy; General Hospital San Jorge; Huesca Spain
| | - J. Cuenca
- Department Orthopaedic and Trauma Surgery; University Hospital Miguel Servet; Zaragoza Spain
| | - A. Herrera
- Section of Haematology and Haemotherapy; General Hospital San Jorge; Huesca Spain
| | - E. Martin-Montañez
- Department of Pharmacology; School of Medicine; University of Málaga; Málaga Spain
| | - J. Pavia
- Department of Pharmacology; School of Medicine; University of Málaga; Málaga Spain
| |
Collapse
|