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Almeida D, Dias M, Teixeira B, Frazão C, Almeida M, Gonçalves G, Oliveira M, Pinto RJB. Optimized Synthesis of Poly(Lactic Acid) Nanoparticles for the Encapsulation of Flutamide. Gels 2024; 10:274. [PMID: 38667693 PMCID: PMC11049099 DOI: 10.3390/gels10040274] [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: 03/23/2024] [Revised: 04/15/2024] [Accepted: 04/17/2024] [Indexed: 04/28/2024] Open
Abstract
Biopolymeric nanoparticles (NPs) have gained significant attention in several areas as an alternative to synthetic polymeric NPs due to growing environmental and immunological concerns. Among the most promising biopolymers is poly(lactic acid) (PLA), with a reported high degree of biocompatibility and biodegradability. In this work, PLA NPs were synthesized according to a controlled gelation process using a combination of single-emulsion and nanoprecipitation methods. This study evaluated the influence of several experimental parameters for accurate control of the PLA NPs' size distribution and aggregation. Tip sonication (as the stirring method), a PLA concentration of 10 mg/mL, a PVA concentration of 2.5 mg/mL, and low-molecular-weight PLA (Mw = 5000) were established as the best experimental conditions to obtain monodisperse PLA NPs. After gelification process optimization, flutamide (FLU) was used as a model drug to evaluate the encapsulation capability of the PLA NPs. The results showed an encapsulation efficiency of 44% for this cytostatic compound. Furthermore, preliminary cell viability tests showed that the FLU@PLA NPs allowed cell viabilities above 90% up to a concentration of 20 mg/L. The comprehensive findings showcase that the PLA NPs fabricated using this straightforward gelification method hold promise for encapsulating cytostatic compounds, offering a novel avenue for precise drug delivery in cancer therapy.
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Affiliation(s)
- Duarte Almeida
- TEMA—Centre for Mechanical Technology and Automation, Department of Mechanical Engineering, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; (D.A.); (G.G.)
- Intelligent Systems Associate Laboratory (LASI), 4800-058 Guimarães, Portugal
| | - Mariana Dias
- CICECO—Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal;
| | - Beatriz Teixeira
- CESAM—Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; (B.T.); (C.F.); (M.A.)
| | - Carolina Frazão
- CESAM—Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; (B.T.); (C.F.); (M.A.)
| | - Mónica Almeida
- CESAM—Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; (B.T.); (C.F.); (M.A.)
| | - Gil Gonçalves
- TEMA—Centre for Mechanical Technology and Automation, Department of Mechanical Engineering, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; (D.A.); (G.G.)
- Intelligent Systems Associate Laboratory (LASI), 4800-058 Guimarães, Portugal
| | - Miguel Oliveira
- CESAM—Centre for Environmental and Marine Studies, Department of Biology, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal; (B.T.); (C.F.); (M.A.)
| | - Ricardo J. B. Pinto
- CICECO—Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal;
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Sousa S, Santos S, Alves CM, Gonçalves G, Carvalho C, Duarte R. Impact of annual TB screening on stone quarry workers in high-incidence Portuguese municipalities. Int J Tuberc Lung Dis 2024; 28:136-141. [PMID: 38454185 DOI: 10.5588/ijtld.23.0350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/09/2024] Open
Abstract
SETTING The Portuguese municipalities of Penafiel and Marco de Canaveses are high TB incidence areas, where stone quarry workers represent a vulnerable population.OBJECTIVE To assess the annual rate of TB infection (ARI) in stone quarry workers and to compare it with the TB notification rate in the general community.DESIGN An annual TB infection screening strategy using interferon-gamma release assay (IGRA) was implemented in 2018 for workers from high-risk stone quarries. A prospective cohort was enrolled and workers screened in periods of 2 years were included. IGRA-positive workers were referred for preventive treatment. ARI was calculated as the proportion of workers with IGRA conversion.RESULTS Of the 232 IGRA-negative workers in 2018, 20 tested positive in 2019 (8.6% ARI). Of 171 IGRA-negative workers in 2019, eight tested positive in 2021 (4.7% in 2 years). Two of the 150 IGRA-negative workers in 2021 tested positive in 2022 (1.3% ARI). ARI decreased by 84.9% between 2019 and 2022. In the two municipalities, the TB notification rate declined 23.9% between 2018 and 2021.CONCLUSION A more pronounced reduction in ARI was observed among stone quarry workers regularly screened for TB infection compared to the notification rate among the general population in high-incidence municipalities. A screening strategy for high-risk populations, together with enforced community measures, could foster risk reduction in the community..
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Affiliation(s)
- S Sousa
- Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto, Estudo das Populações, ICBAS, Universidade do Porto, Porto
| | - S Santos
- Northern Regional Health Administration, Porto
| | - C M Alves
- Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto, Instituto Superior Ave, Amares
| | - G Gonçalves
- Public Health Unit, Unidade Local de Saúde do Médio Ave, Vila Nova de Famalicão
| | - C Carvalho
- Instituto de Ciências Biomédicas Abel Salazar (ICBAS), Universidade do Porto, Porto
| | - R Duarte
- Estudo das Populações, ICBAS, Universidade do Porto, Porto, EPIUnit, Instituto de Saúde Pública, Universidade do Porto, Porto, Serviço de Pneumologia, Unidade Local de Saúde de Gaia/Espinho, Vila Nova de Gaia, Portugal
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3
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Simões R, Rodrigues J, Neto V, Monteiro T, Gonçalves G. Carbon Dots: A Bright Future as Anticounterfeiting Encoding Agents. Small 2024:e2311526. [PMID: 38396215 DOI: 10.1002/smll.202311526] [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: 12/11/2023] [Revised: 01/23/2024] [Indexed: 02/25/2024]
Abstract
Counterfeit products and data vulnerability present significant challenges in contemporary society. Hence, various methods and technologies are explored for anticounterfeiting encoding, with luminescent tracers, particularly luminescent carbon dots (CDs), emerging as a notable solution. CDs offer promising contributions to product security, environmental sustainability, and the circular economy. This critical review aims to highlight the luminescence responsiveness of CDs to physical and chemical stimuli, achieved through nanoengineering their chemical structure. The discussion will delve into the various tunable luminescence mechanisms and decay times of CDs, investigating preferential excitations such as up-conversion, delayed fluorescence, fluorescence, room temperature phosphorescence, persistent luminescence, energy and charge transfer, as well as photo-chemical interactions. These insights are crucial for advancing anticounterfeiting solutions. Following this exploration, a systematic review will focus on the research of luminescent CDs' smart encoding applications, encompassing anticounterfeiting, product tracing, quality certification, and information encryption. Finally, the review will address key challenges in implementing CDs-based technology, providing specific insights into strategies aimed at maximizing their stability and efficacy in anticounterfeiting encoding applications.
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Affiliation(s)
- Raul Simões
- TEMA, Department of Mechanical Engineering, University of Aveiro, Aveiro, 3810-193, Portugal
- Intelligent Systems Associate Laboratory (LASI), Guimarães, Portugal., LASI, Guimarães, 4800-058, Portugal
- i3N, Department of Physics, University of Aveiro, Aveiro, 3810-193, Portugal
| | - Joana Rodrigues
- i3N, Department of Physics, University of Aveiro, Aveiro, 3810-193, Portugal
| | - Victor Neto
- TEMA, Department of Mechanical Engineering, University of Aveiro, Aveiro, 3810-193, Portugal
- Intelligent Systems Associate Laboratory (LASI), Guimarães, Portugal., LASI, Guimarães, 4800-058, Portugal
| | - Teresa Monteiro
- i3N, Department of Physics, University of Aveiro, Aveiro, 3810-193, Portugal
| | - Gil Gonçalves
- TEMA, Department of Mechanical Engineering, University of Aveiro, Aveiro, 3810-193, Portugal
- i3N, Department of Physics, University of Aveiro, Aveiro, 3810-193, Portugal
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4
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Sousa S, Macedo R, Alves CM, Carvalho C, Gonçalves G, Duarte R. Coffee shops, a hub for TB clusters? Pulmonology 2024; 30:71-74. [PMID: 37236905 DOI: 10.1016/j.pulmoe.2023.04.007] [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] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 04/21/2023] [Accepted: 04/24/2023] [Indexed: 05/28/2023] Open
Affiliation(s)
- S Sousa
- Multidisciplinary Unit for Biomedical Research (UMIB), Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, ICBAS-UP, Porto, Portugal.
| | - R Macedo
- National Reference Laboratory for Mycobacteria, Department of Infectious Diseases, National Institute of Health (INSA), Lisbon, Portugal
| | - C M Alves
- Institute of Biomedical Sciences Abel Salazar, University of Porto, Porto, Portugal; Northern Regional Health Administration, Portugal
| | - C Carvalho
- Multidisciplinary Unit for Biomedical Research (UMIB), Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, ICBAS-UP, Porto, Portugal
| | - G Gonçalves
- Public Health Unit, ACeS Ave-Famalicão, ARS Norte, Health Ministry, Portugal
| | - R Duarte
- Multidisciplinary Unit for Biomedical Research (UMIB), Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, ICBAS-UP, Porto, Portugal; EPIUnit - Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal; Serviço de Pneumologia, Centro Hospitalar de Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
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5
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Sousa S, Alves CM, Macedo R, Carvalho C, Gonçalves G, Duarte R. An investigation of TB infection and reinfection among stone quarry workers. Pulmonology 2023; 29:570-572. [PMID: 37263863 DOI: 10.1016/j.pulmoe.2023.05.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 05/04/2023] [Accepted: 05/05/2023] [Indexed: 06/03/2023] Open
Affiliation(s)
- S Sousa
- Multidisciplinary Unit for Biomedical Research (UMIB), Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, ICBAS-UP, Porto, Portugal.
| | - C M Alves
- Institute of Biomedical Sciences Abel Salazar, University of Porto, Porto, Portugal; Northern Regional Health Administration, Portugal
| | - R Macedo
- National Reference Laboratory for Mycobacteria, Department of Infectious Diseases, National Institute of Health (INSA), Lisbon, Portugal
| | - C Carvalho
- Multidisciplinary Unit for Biomedical Research (UMIB), Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, ICBAS-UP, Porto, Portugal
| | - G Gonçalves
- Public Health Unit, ACeS Ave-Famalicão, ARS Norte, Health Ministry, Portugal
| | - R Duarte
- Multidisciplinary Unit for Biomedical Research (UMIB), Instituto de Ciências Biomédicas Abel Salazar, Universidade do Porto, ICBAS-UP, Porto, Portugal; EPIUnit - Instituto de Saúde Pública, Universidade do Porto, Porto, Portugal; Serviço de Pneumologia, Centro Hospitalar de Vila Nova de Gaia/Espinho, Vila Nova de Gaia, Portugal
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6
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Kocijan M, Ćurković L, Vengust D, Radošević T, Shvalya V, Gonçalves G, Podlogar M. Synergistic Remediation of Organic Dye by Titanium Dioxide/Reduced Graphene Oxide Nanocomposite. Molecules 2023; 28:7326. [PMID: 37959746 PMCID: PMC10647384 DOI: 10.3390/molecules28217326] [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] [Subscribe] [Scholar Register] [Received: 09/23/2023] [Revised: 10/18/2023] [Accepted: 10/26/2023] [Indexed: 11/15/2023] Open
Abstract
In this work, nanocomposites based on titanium dioxide and reduced graphene oxide (TiO2@rGO) with different weight percentages of rGO (4, 8, and 16 wt%) were prepared by the hydrothermal/solvothermal synthesis method and thermally treated at 300 °C. The prepared nanocomposites were explored for the removal of methylene blue dye (MB) in the presence of simulated solar illumination as well as natural sunlight. The structural, morphological, chemical, and optical properties of the as-synthesized TiO2@rGO nanocomposites were characterized. The obtained results of the graphene-based nanocomposite materials indicated the existence of interactions between TiO2 and rGO, i.e., the Ti-O-C bond, which confirmed the successful integration of both components to form the TiO2@rGO nanocomposites. The addition of rGO increased the specific surface area, decreased the band gap energy, and increased the photocatalytic degradation efficiency of MB from water compared to TiO2 nanoparticles. The results of photocatalytic activity indicated that the amount of rGO in the prepared TiO2@rGO nanocomposites played a significant role in the application of different photocatalytic parameters, including the initial dye concentration, catalyst concentration, water environment, and illumination source. Our studies show that the reinforcement of the nanocomposite with 8 wt% of rGO allowed us to obtain the maximum photocatalytic decomposition performance of MB (10 mg·L-1) with a removal percentage of 99.20 after 2 h. Additionally, the obtained results show that the prepared TiO2@rGO_8 wt% nanocomposite can be used in three consecutive cycles while maintaining photocatalytic activity over 90%.
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Affiliation(s)
- Martina Kocijan
- Department of Materials, Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, Croatia
| | - Lidija Ćurković
- Department of Materials, Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića 5, 10000 Zagreb, Croatia
| | - Damjan Vengust
- Advanced Materials Department, Jožef Stefan Institute, Jamova Cesta 39, SI-1000 Ljubljana, Slovenia;
| | - Tina Radošević
- Department for Nanostructured Materials, Jožef Stefan Institute, Jamova Cesta 39, SI-1000 Ljubljana, Slovenia; (T.R.); (M.P.)
| | - Vasyl Shvalya
- Department of Gaseous Electronics, Jožef Stefan Institute, SI-1000 Ljubljana, Slovenia;
| | - Gil Gonçalves
- Centre for Mechanical Technology and Automation (TEMA), Mechanical Engineering Department, University of Aveiro, 3810-193 Aveiro, Portugal;
- Intelligent Systems Associate Laboratory (LASI), 4800-058 Guimarães, Portugal
| | - Matejka Podlogar
- Department for Nanostructured Materials, Jožef Stefan Institute, Jamova Cesta 39, SI-1000 Ljubljana, Slovenia; (T.R.); (M.P.)
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7
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Andriolo U, Topouzelis K, van Emmerik THM, Papakonstantinou A, Monteiro JG, Isobe A, Hidaka M, Kako S, Kataoka T, Gonçalves G. Drones for litter monitoring on coasts and rivers: suitable flight altitude and image resolution. Mar Pollut Bull 2023; 195:115521. [PMID: 37714078 DOI: 10.1016/j.marpolbul.2023.115521] [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] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 08/29/2023] [Accepted: 09/05/2023] [Indexed: 09/17/2023]
Abstract
Multirotor drones can be efficiently used to monitor macro-litter in coastal and riverine environments. Litter on beaches, dunes and riverbanks, along with floating litter on coastal and river waters, can be spotted and mapped from aerial drone images. Items detection and classification are prone to image resolution, which is expressed in terms of Ground Sampling Distance (GSD). The GSD is determined by drone flight altitude and camera properties. This paper investigates what is a suitable GSD value for litter survey. Drone flight altitude and camera setup should be chosen to obtain a GSD between 0.5 cm/px and 1.25 cm/px. Within this range, the lowest GSD allows litter categorization and classification, whereas the highest value should be adopted for a coarser litter census. In the vision of drawing up a global protocol for drone-based litter surveys, this work sets the ground for homogenizing data collection and litter assessments.
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Affiliation(s)
- Umberto Andriolo
- INESC Coimbra, Department of Electrical and Computer Engineering, Polo 2, 3030-290 Coimbra, Portugal.
| | | | - Tim H M van Emmerik
- Hydrology and Environmental Hydraulics Group, Wageningen University, Wageningen, the Netherlands.
| | | | - João Gama Monteiro
- MARE - Marine and Environmental Sciences Centre/ARNET - Aquatic Research Network, Agência Regional para o Desenvolvimento da Investigação Tecnologia e Inovação (ARDITI), Funchal, Madeira, Portugal; Faculty of Life Sciences, Universidade da Madeira, Funchal, Madeira, Portugal.
| | - Atsuhiko Isobe
- Research Institute for Applied Mechanics, Kyushu University, Kasuga, Japan.
| | - Mitsuko Hidaka
- Research Institute for Value-Added-Information Generation (VAiG), Japan Agency for Marine - Earth Science and Technology (JAMSTEC), Yokohama, Japan; Graduate School of Science and Engineering, Department of Engineering, Ocean Civil Engineering Program, Kagoshima University, Kagoshima, Japan.
| | - Shin'ichiro Kako
- Graduate School of Science and Engineering, Department of Engineering, Ocean Civil Engineering Program, Kagoshima University, Kagoshima, Japan.
| | - Tomoya Kataoka
- Department of Civil and Environmental Engineering, Graduate School of Science and Engineering, Ehime University, Matsuyama, Japan.
| | - Gil Gonçalves
- INESC Coimbra, Department of Electrical and Computer Engineering, Polo 2, 3030-290 Coimbra, Portugal; University of Coimbra, Department of Mathematics, Coimbra, Portugal.
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8
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Nascimento L, Fernandes C, Silva RM, Semitela Â, de Sousa BM, Marques PAAP, Vieira SI, Silva RF, Barroca N, Gonçalves G. Customizing 3D Structures of Vertically Aligned Carbon Nanotubes to Direct Neural Stem Cell Differentiation. Adv Healthc Mater 2023; 12:e2300828. [PMID: 37312636 DOI: 10.1002/adhm.202300828] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Revised: 05/19/2023] [Indexed: 06/15/2023]
Abstract
Neural tissue-related illnesses have a high incidence and prevalence in society. Despite intensive research efforts to enhance the regeneration of neural cells into functional tissue, effective treatments are still unavailable. Here, a novel therapeutic approach based on vertically aligned carbon nanotube forests (VA-CNT forests) and periodic VA-CNT micropillars produced by thermal chemical vapor deposition is explored. In addition, honeycomb-like and flower-like morphologies are created. Initial viability testing reveals that NE-4C neural stem cells seeded on all morphologies survive and proliferate. In addition, free-standing VA-CNT forests and capillary-driven VA-CNT forests are created, with the latter demonstrating enhanced capacity to stimulate neuritogenesis and network formation under minimal differentiation medium conditions. This is attributed to the interaction between surface roughness and 3D-like morphology that mimics the native extracellular matrix, thus enhancing cellular attachment and communication. These findings provide a new avenue for the construction of electroresponsive scaffolds based on CNTs for neural tissue engineering.
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Affiliation(s)
- Luís Nascimento
- TEMA, Mechanical Engineering Department, University of Aveiro, Aveiro, 3810-193, Portugal
- Intelligent Systems Associate Laboratory (LASI), Aveiro, 3810-193, Portugal
| | - Cristiana Fernandes
- TEMA, Mechanical Engineering Department, University of Aveiro, Aveiro, 3810-193, Portugal
- Intelligent Systems Associate Laboratory (LASI), Aveiro, 3810-193, Portugal
| | - Ricardo M Silva
- CICECO Aveiro Insititute of Materials, University of Aveiro, Aveiro, 3810-193, Portugal
| | - Ângela Semitela
- TEMA, Mechanical Engineering Department, University of Aveiro, Aveiro, 3810-193, Portugal
- Intelligent Systems Associate Laboratory (LASI), Aveiro, 3810-193, Portugal
| | - Bárbara M de Sousa
- iBiMED - Institute of Biomedicine, Department of Medical Sciences, University of Aveiro, Aveiro, 3810-193, Portugal
| | - Paula A A P Marques
- TEMA, Mechanical Engineering Department, University of Aveiro, Aveiro, 3810-193, Portugal
- Intelligent Systems Associate Laboratory (LASI), Aveiro, 3810-193, Portugal
| | - Sandra I Vieira
- iBiMED - Institute of Biomedicine, Department of Medical Sciences, University of Aveiro, Aveiro, 3810-193, Portugal
| | - Rui F Silva
- CICECO Aveiro Insititute of Materials, University of Aveiro, Aveiro, 3810-193, Portugal
| | - Nathalie Barroca
- TEMA, Mechanical Engineering Department, University of Aveiro, Aveiro, 3810-193, Portugal
- Intelligent Systems Associate Laboratory (LASI), Aveiro, 3810-193, Portugal
| | - Gil Gonçalves
- TEMA, Mechanical Engineering Department, University of Aveiro, Aveiro, 3810-193, Portugal
- Intelligent Systems Associate Laboratory (LASI), Aveiro, 3810-193, Portugal
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Gil JF, Moura CS, Silverio V, Gonçalves G, Santos HA. Cancer Models on Chip: Paving the Way to Large-Scale Trial Applications. Adv Mater 2023; 35:e2300692. [PMID: 37103886 DOI: 10.1002/adma.202300692] [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] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2023] [Revised: 04/05/2023] [Indexed: 06/19/2023]
Abstract
Cancer kills millions of individuals every year all over the world (Global Cancer Observatory). The physiological and biomechanical processes underlying the tumor are still poorly understood, hindering researchers from creating new, effective therapies. Inconsistent results of preclinical research, in vivo testing, and clinical trials decrease drug approval rates. 3D tumor-on-a-chip (ToC) models integrate biomaterials, tissue engineering, fabrication of microarchitectures, and sensory and actuation systems in a single device, enabling reliable studies in fundamental oncology and pharmacology. This review includes a critical discussion about their ability to reproduce the tumor microenvironment (TME), the advantages and drawbacks of existing tumor models and architectures, major components and fabrication techniques. The focus is on current materials and micro/nanofabrication techniques used to manufacture reliable and reproducible microfluidic ToC models for large-scale trial applications.
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Affiliation(s)
- João Ferreira Gil
- Centre for Rapid and Sustainable Product Development, Polytechnic of Leiria, Marinha Grande, 2430-028, Portugal
- INESC Microsistemas e Nanotecnologias (INESC MN), Rua Alves Redol 9, Lisbon, 1000-029, Portugal
- TEMA, Mechanical Engineering Department, University of Aveiro, Aveiro, 3810-193, Portugal
| | - Carla Sofia Moura
- Centre for Rapid and Sustainable Product Development, Polytechnic of Leiria, Marinha Grande, 2430-028, Portugal
- Polytechnic Institute of Coimbra, Applied Research Institute, Coimbra, 3045-093, Portugal
| | - Vania Silverio
- INESC Microsistemas e Nanotecnologias (INESC MN), Rua Alves Redol 9, Lisbon, 1000-029, Portugal
- Department of Physics, Instituto Superior Técnico, Lisbon, 1049-001, Portugal
- Associate Laboratory Institute for Health and Bioeconomy - i4HB, Lisbon, Portugal
| | - Gil Gonçalves
- TEMA, Mechanical Engineering Department, University of Aveiro, Aveiro, 3810-193, Portugal
- Intelligent Systems Associate Laboratory (LASI), Aveiro, 3810-193, Portugal
| | - Hélder A Santos
- Department of Biomedical Engineering, University Medical Center Groningen, University of Groningen, Groningen, 9713 AV, The Netherlands
- W.J. Korf Institute for Biomedical Engineering and Materials Science, University Medical Center Groningen, University of Groningen, Groningen, 9713 AV, The Netherlands
- Drug Research Program, Division of Pharmaceutical Chemistry and Technology, Faculty of Pharmacy, University of Helsinki, Helsinki, 00014, Finland
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10
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Andriolo U, Gonçalves G. The octopus pot on the North Atlantic Iberian coast: A plague of plastic on beaches and dunes. Mar Pollut Bull 2023; 192:115099. [PMID: 37267867 DOI: 10.1016/j.marpolbul.2023.115099] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2023] [Revised: 05/22/2023] [Accepted: 05/23/2023] [Indexed: 06/04/2023]
Abstract
This baseline focuses on the octopus pot, a litter item found on the North Atlantic Iberian coast. Octopus pots are deployed from vessels in ropes, with several hundred units, and placed on the seabed, to capture mostly Octopus Vulgaris. The loss of gears due to extreme seas state, bad weather and/or fishing-related unforeseen circumstances, cause the octopus pots contaminating beaches and dunes, where they are transported by sea current, waves and wind actions. This work i) gives an overview of the use of octopus pot on fisheries, ii) analyses the spatial distribution of this item on the coast, and iii) discusses the potential measures for tackling the octopus pot plague on the North Atlantic Iberian coast. Overall, it is urgent to promote conducive policies and strategies for a sustainable waste management of octopus pots, based on Reduce, Reuse and Recycle hierarchical framework.
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Affiliation(s)
- Umberto Andriolo
- INESC Coimbra, Department of Electrical and Computer Engineering, Polo 2, 3030 - 290 Coimbra, Portugal.
| | - Gil Gonçalves
- INESC Coimbra, Department of Electrical and Computer Engineering, Polo 2, 3030 - 290 Coimbra, Portugal; University of Coimbra, Department of Mathematics, Coimbra, Portugal.
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11
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Andriolo U, Gonçalves G. Impacts of a massive beach music festival on a coastal ecosystem - A showcase in Portugal. Sci Total Environ 2023; 861:160733. [PMID: 36481146 DOI: 10.1016/j.scitotenv.2022.160733] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 10/05/2022] [Revised: 11/29/2022] [Accepted: 12/02/2022] [Indexed: 06/17/2023]
Abstract
Beach music festivals are numerous and popular worldwide. The concerns about the environmental sustainability of these events have been increasing among scientists, coastal managers and local communities. Nevertheless, the negative effects of beach music festivals on the coastal environment have been poorly studied. This work identified, analysed and discussed the eco-geomorphological impacts of a massive beach music festival held on a Portuguese beach-dune system over three days in July 2022. Drone-based orthophotos and pictures collected in the field were analysed to evaluate the impact of pre- and post-festival works, which turned the beach into a construction site over about twenty days. Digital Surface Model (DSM) analysis showed that beach configuration was approximately restored to the pre-festival configuration after the event. In contrast, the comparison of Normalized Difference Vegetation Index (NDVI) maps revealed that 18,500 m2 of embryonic dune vegetation, which represented 35 % of the existing plant community, was removed by works on the beach and by trampling of festival attendees. To authors' knowledge, this is the first work that evaluates the eco-geomorphological impact of a massive beach music festival on the delicate coastal ecosystem. Overall, it contributes in raising awareness for making these events more respectful of the coastal environment.
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Affiliation(s)
- Umberto Andriolo
- INESC Coimbra, Department of Electrical and Computer Engineering, Polo 2, 3030-290 Coimbra, Portugal.
| | - Gil Gonçalves
- INESC Coimbra, Department of Electrical and Computer Engineering, Polo 2, 3030-290 Coimbra, Portugal; University of Coimbra, Department of Mathematics, Coimbra, Portugal.
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12
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Santos CIM, Cicuéndez M, Gonçalves G, Rodríguez-Pérez L, Portolés MT, Faustino MAF, Herranz MÁ, Neves MGPMS, Martinho JMG, Maçôas EMS, Martín N. Safety assessment of new nanodiamonds@corrole hybrids addressed by the response of RAW-264.7 macrophages. J Mater Chem B 2023; 11:675-686. [PMID: 36562480 DOI: 10.1039/d2tb01863b] [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] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Safety assessment of carbon nanomaterials is of paramount importance since they are on the frontline for applications in sensing, bioimaging and drug delivery. The biocompatibility and safety of functionalized nanodiamonds (NDs) are here addressed through the study of the pro-inflammatory response of RAW-264.7 macrophages exposed to new nanodiamonds@corrole hybrids. The corrole unit selected is as a prototype for a hydrophobic organic molecule that can function as a NIR fluorophore reporter, an optical sensor, a photodynamic therapy agent or a photocatalyst. The new functional nanohybrids containing detonated nanodiamonds (NDs) were obtained through esterification using carboxylated NDs and glycol corroles. The success of the covalent functionalization via carbodiimide activation was confirmed through X-ray photoelectron spectroscopy (XPS), Raman and Fourier transform infrared (FTIR) spectroscopy. The UV-vis absorption and emission spectra of the hybrids are additive with respect to the corrole features. The cellular uptake, localization, cell viability and effects on immune cell activation of the new hybrids and of the precursors were carefully investigated using RAW-264.7 macrophages. Overall results showed that the ND@corrole hybrids had no pro-inflammatory effects on the RAW-264.7 macrophage cell line, making them an ideal candidate for a wide range of biomedical applications.
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Affiliation(s)
- Carla I M Santos
- CQE, Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.,LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - Mónica Cicuéndez
- Chemistry Department, Faculty of Pharmacy, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria del Hospital Clínico San Carlos (IdISSC), E-28040, Madrid, Spain
| | - Gil Gonçalves
- TEMA-Nanotechnology Research Group, Mechanical Engineering Department, University of Aveiro, Campus Universitario de Santiago, 3810-193 Aveiro, Portugal.,Intelligent Systems Associate Laboratory (LASI), Portugal
| | - Laura Rodríguez-Pérez
- Department of Organic Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, E-28040 Madrid, Spain.
| | - M Teresa Portolés
- Department of Biochemistry and Molecular Biology, Faculty of Chemistry, Universidad Complutense de Madrid, Instituto de Investigación Sanitaria Hospital Clínico San Carlos (IdISSC), 28040 Madrid, Spain, E-28040 Madrid, Spain.,CIBER de Bioingeniería, Biomateriales y Nanomedicina, CIBER-BBN, ISCIII, 28040 Madrid, Spain
| | - M Amparo F Faustino
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - M Ángeles Herranz
- Department of Organic Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, E-28040 Madrid, Spain.
| | - M Graça P M S Neves
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, Campus Universitário de Santiago, 3810-193 Aveiro, Portugal
| | - José M G Martinho
- CQE, Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Ermelinda M S Maçôas
- CQE, Centro de Química Estrutural, Instituto Superior Técnico, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Nazario Martín
- Department of Organic Chemistry, Faculty of Chemistry, Universidad Complutense de Madrid, E-28040 Madrid, Spain.
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13
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Baz A, Mantovani S, Ramos RP, Santos B, Grecco L, Gonçalves G, Arakelyan M, Marques J, Franco A. Age-at-death assessed with Lamendin's original and population-specific models in a modern Brazilian osteological collection. J Forensic Odontostomatol 2022; 40:45-51. [PMID: 36623297] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
BACKGROUND Estimating the age at death is a common procedure in the fields of forensic human identification and anthropological/archaeological investigations. Root translucency and periodontosis are regressive parameters used to estimate the age of adults, more specifically in Lamendin's method - established in 1992 in a French population. This study aimed to test the applicability and validity of Lamendin's method in a Brazilian osteological collection. METHODS The sample consisted of 74 single-rooted teeth obtained from 50 skeletal remains (mean age: 53.20 ± 16.17 years) from Southeast Brazil. Lamendin's method was applied to enable a comparison between chronological (CA) and estimated ages (EA). A new population-specific equation was designed for the studied sample and the outcomes were compared with those obtained with Lamendin's original equation. RESULTS The original methods led to a general underestimation of 11.32 years (8.83 years in males and 15.91 years in females). The method had a better performance among individuals between 40 and 59 years (mean differences between CA and EA: 4.8 years). The population-specific equation led to a mean overestimation of -2.04 years in males, and a mean underestimation of 3.77 years in females. Underestimations were considerably higher in other age groups. CONCLUSION Despite the apparent improvements, both the original and the population-specific equations revealed coefficients of concordance that were constantly low between CA and EA. These outcomes suggest restrictions to the application of Lamendin's method in the forensic field, especially for human identification. The method, however, seems to be applicable for anthropological/archaeological applications.
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Affiliation(s)
- A Baz
- Division of Forensic Dentistry, Faculdade Sao Leopoldo Mandic, Campinas, Brazil
| | - S Mantovani
- Division of Forensic Dentistry, Faculdade Sao Leopoldo Mandic, Campinas, Brazil
| | - R P Ramos
- Legal Medical Institute of Porto Velho, Civil Police of Rondônia, Porto Velho, Brazil
| | - B Santos
- Legal Medical Institute of Porto Velho, Civil Police of Rondônia, Porto Velho, Brazil
| | - L Grecco
- Laboratory of Human Anatomy, Faculdade Sao Leopoldo Mandic, Campinas, Brazil
| | - G Gonçalves
- Laboratory of Human Anatomy, Faculdade Sao Leopoldo Mandic, Campinas, Brazil
| | - M Arakelyan
- Department of Therapeutic Stomatology, Sechenov University, Russia
| | - J Marques
- Department of Dentistry, State University of Feira de Santana, Brazil
| | - A Franco
- Division of Forensic Dentistry, Faculdade Sao Leopoldo Mandic, Campinas, Brazil
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14
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Gonçalves G, Andriolo U, Gonçalves LMS, Sobral P, Bessa F. Beach litter survey by drones: Mini-review and discussion of a potential standardization. Environ Pollut 2022; 315:120370. [PMID: 36216177 DOI: 10.1016/j.envpol.2022.120370] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [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: 04/21/2022] [Revised: 09/23/2022] [Accepted: 10/03/2022] [Indexed: 06/16/2023]
Abstract
The abundance of beach litter has been increasing globally during the last decades, and it is an issue of global concern. A new survey strategy, based on uncrewed aerial vehicles (UAV, aka drones), has been recently adopted to improve the monitoring of beach macro-litter items abundance and distribution. This work identified and analysed the 15 studies that used drone for beach litter surveys on an operational basis. The analysis of technical parameters for drone flight deployment revealed that flight altitude varied between 5 and 40 m. The analysis of final assessments showed that, through manual and/or automated items detection on images, most of studies provided litter bulk characteristics (type, material and size), along with litter distribution maps. The potential standardization of drone-based litter survey would allow a comparison among surveys, however it seems difficult to propose a standard set of flight parameters, given the wide variety of coastal environments, the different devices available, and the diverse objectives of drone-based litter surveys. On the other hand, in our view, a set of common outcomes can be proposed, based on the grid mapping process, which can be easily generated following the procedure indicated in the paper. This work sets the ground for the development of a standardized protocol for drone litter data collection, analysis and assessments. This would allow the provision of broad scale comparative studies to support coastal management at both national and international scales.
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Affiliation(s)
- Gil Gonçalves
- University of Coimbra, Department of Mathematics, Coimbra, Portugal; INESC Coimbra, Department of Electrical and Computer Engineering, Polo 2, 3030 - 290, Coimbra, Portugal.
| | - Umberto Andriolo
- INESC Coimbra, Department of Electrical and Computer Engineering, Polo 2, 3030 - 290, Coimbra, Portugal.
| | - Luísa M S Gonçalves
- INESC Coimbra, Department of Electrical and Computer Engineering, Polo 2, 3030 - 290, Coimbra, Portugal; School of Technology and Management, Polytechnic of Leiria, Nova IMS University Lisbon, Portugal.
| | - Paula Sobral
- MARE- Marine and Environmental Sciences Centre, NOVA School of Science and Technology, NOVA University Lisbon, Portugal.
| | - Filipa Bessa
- University of Coimbra, MARE - Marine and Environmental Sciences Centre, ARNET - Aquatic Research Network, Department of Life Sciences, Calçada Martim de Freitas, 3000-456, Coimbra, Portugal.
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15
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Llenas M, Cuenca L, Santos C, Bdikin I, Gonçalves G, Tobías-Rossell G. Sustainable Synthesis of Highly Biocompatible 2D Boron Nitride Nanosheets. Biomedicines 2022; 10:biomedicines10123238. [PMID: 36551994 PMCID: PMC9775030 DOI: 10.3390/biomedicines10123238] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2022] [Revised: 12/07/2022] [Accepted: 12/08/2022] [Indexed: 12/15/2022] Open
Abstract
2D ultrafine nanomaterials today represent an emerging class of materials with very promising properties for a wide variety of applications. Biomedical fields have experienced important new achievements with technological breakthroughs obtained from 2D materials with singular properties. Boron nitride nanosheets are a novel 2D layered material comprised of a hexagonal boron nitride network (BN) with interesting intrinsic properties, including resistance to oxidation, extreme mechanical hardness, good thermal conductivity, photoluminescence, and chemical inertness. Here, we investigated different methodologies for the exfoliation of BN nanosheets (BNNs), using ball milling and ultrasound processing, the latter using both an ultrasound bath and tip sonication. The best results are obtained using tip sonication, which leads to the formation of few-layered nanosheets with a narrow size distribution. Importantly, it was observed that with the addition of pluronic acid F127 to the medium, there was a significant improvement in the BN nanosheets (BNNs) production yield. Moreover, the resultant BNNs present improved stability in an aqueous solution. Cytotoxicity studies performed with HeLa cells showed the importance of taking into account the possible interferences of the nanomaterial with the selected assay. The prepared BNNs coated with pluronic presented improved cytotoxicity at concentrations up to 200 μg mL-1 with more than 90% viability after 24 h of incubation. Confocal microscopy also showed high cell internalization of the nanomaterials and their preferential biodistribution in the cell cytoplasm.
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Affiliation(s)
- Marina Llenas
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus de la UAB, 08193 Bellaterra, Spain
| | - Lorenzo Cuenca
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus de la UAB, 08193 Bellaterra, Spain
| | - Carla Santos
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
- CQE—Centro de Química Estrutural, Instituto Superior Técnico, University of Lisbon, 1049-001 Lisbon, Portugal
| | - Igor Bdikin
- TEMA-Nanotechnology Research Group, Mechanical Engineering Department, University of Aveiro, 3810-193 Aveiro, Portugal
- Intelligent Systems Associate Laboratory (LASI), 3810-193 Aveiro, Portugal
| | - Gil Gonçalves
- TEMA-Nanotechnology Research Group, Mechanical Engineering Department, University of Aveiro, 3810-193 Aveiro, Portugal
- Intelligent Systems Associate Laboratory (LASI), 3810-193 Aveiro, Portugal
- Correspondence: (G.G.); (G.T.-R.)
| | - Gerard Tobías-Rossell
- Institut de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus de la UAB, 08193 Bellaterra, Spain
- Correspondence: (G.G.); (G.T.-R.)
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16
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Pinheiro J, Oliveira D, Neto L, Pinto VH, Gonçalves G. Development of an IEEE 1451 Plug-and-Play Module for Smart Transducers in Industrial Environments. Sensors (Basel) 2022; 22:7880. [PMID: 36298231 PMCID: PMC9609107 DOI: 10.3390/s22207880] [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] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 10/11/2022] [Accepted: 10/13/2022] [Indexed: 06/16/2023]
Abstract
The use of Sensors and Actuators is ubiquitous in an industrial environment. The advent of the Industrial Internet-of-Things (IIoT) and the 4th industrial revolution demands new, more intelligent and more efficient ways to be able to connect, read and control transducers at the plant floor level. Newer control and data science techniques also largely benefit from structured information endpoints available at the edge of the network. The IEEE 1451 standard presents architecture and methodology to solve these problems with the usage of smart transducers, introducing into edge devices concepts such as self-identification and standardization of data communication. In this work, a transducer interface module is developed using the IEEE 1451 standard focused on flexibility, ease of integration and plug-and-play features. Furthermore, a system architecture, based on IEEE 1451.0 is presented, and development and implementation features are explained. This system is then released as an open-source platform to help and motivate the usage of smart transducer systems. At last, the system is tested, results are collected, and a methodology and metrics are defined for comparison between different smart transducer systems.
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Affiliation(s)
- João Pinheiro
- FEUP—Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- SYSTEC (DIGI2)—Research Center for Systems and Technologies (Digital and Intelligent Industry Lab), 4200-265 Porto, Portugal
| | - Diogo Oliveira
- FEUP—Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- SYSTEC (DIGI2)—Research Center for Systems and Technologies (Digital and Intelligent Industry Lab), 4200-265 Porto, Portugal
| | - Luís Neto
- FEUP—Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- SYSTEC (DIGI2)—Research Center for Systems and Technologies (Digital and Intelligent Industry Lab), 4200-265 Porto, Portugal
| | - Vítor H. Pinto
- FEUP—Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- SYSTEC (DIGI2)—Research Center for Systems and Technologies (Digital and Intelligent Industry Lab), 4200-265 Porto, Portugal
| | - Gil Gonçalves
- FEUP—Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- SYSTEC (DIGI2)—Research Center for Systems and Technologies (Digital and Intelligent Industry Lab), 4200-265 Porto, Portugal
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17
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Oliveira D, Pinheiro J, Neto L, Pinto VH, Gonçalves G. A Plug-and-Play Solution for Smart Transducers in Industrial Applications Based on IEEE 1451 and IEC 61499 Standards. Sensors (Basel) 2022; 22:7694. [PMID: 36236793 PMCID: PMC9572617 DOI: 10.3390/s22197694] [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] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 10/04/2022] [Accepted: 10/08/2022] [Indexed: 06/16/2023]
Abstract
In a cyberphysical production system, the connectivity between the physical entities of a production system with the digital component that controls and monitors that system takes fundamental importance. This connectivity has been increasing from the transducers' side, through gathering new functionalities and operating increasingly independently, taking the role of smart transducers, and from the applications' side, by being developed in a distributed and decentralized paradigm. This work presents a plug-and-play solution capable of integrating smart transducers compliant with the IEEE 1451 standard in industrial applications based on the IEC 61499 standard. For this, we implemented the NCAP module of the smart transducer defined in IEEE 1451, which, when integrated with 4diac IDE and DINASORE (development and execution tools compliant with IEC 61499), enabled a solution that presented automatically the smart sensors and actuators in the IDE application and embedded their functionalities (access to data and processing functions) in the runtime environment. In this way, a complete plug-and-play solution was presented from the connection of the transducer to the network until its integration into the application.
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Affiliation(s)
- Diogo Oliveira
- FEUP—Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- SYSTEC (DIGI2)—Research Center for Systems and Technologies (Digital and Intelligent Industry Lab), 4200-465 Porto, Portugal
| | - João Pinheiro
- FEUP—Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- SYSTEC (DIGI2)—Research Center for Systems and Technologies (Digital and Intelligent Industry Lab), 4200-465 Porto, Portugal
| | - Luís Neto
- FEUP—Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- SYSTEC (DIGI2)—Research Center for Systems and Technologies (Digital and Intelligent Industry Lab), 4200-465 Porto, Portugal
| | - Vítor H. Pinto
- FEUP—Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- SYSTEC (DIGI2)—Research Center for Systems and Technologies (Digital and Intelligent Industry Lab), 4200-465 Porto, Portugal
| | - Gil Gonçalves
- FEUP—Faculty of Engineering, University of Porto, Rua Dr. Roberto Frias, 4200-465 Porto, Portugal
- SYSTEC (DIGI2)—Research Center for Systems and Technologies (Digital and Intelligent Industry Lab), 4200-465 Porto, Portugal
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18
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Karim HMR, Šarc I, Calandra C, Spadaro S, Mina B, Ciobanu LD, Gonçalves G, Caldeira V, Cabrita B, Perren A, Fiorentino G, Utku T, Piervincenzi E, El-Khatib M, Alpay N, Ferrari R, Abdelrahim MEA, Saeed H, Madney YM, Harb HS, Vargas N, Demirkiran H, Bhakta P, Papadakos P, Gómez-Ríos MÁ, Abad A, Alqahtani JS, Hadda V, Singha SK, Esquinas AM. Role of Sedation and Analgesia during Noninvasive Ventilation: Systematic Review of Recent Evidence and Recommendations. Indian J Crit Care Med 2022; 26:938-948. [PMID: 36042773 PMCID: PMC9363803 DOI: 10.5005/jp-journals-10071-23950] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Aim This systematic review aimed to investigate the drugs used and their potential effect on noninvasive ventilation (NIV). Background NIV is used increasingly in acute respiratory failure (ARF). Sedation and analgesia are potentially beneficial in NIV, but they can have a deleterious impact. Proper guidelines to specifically address this issue and the recommendations for or against it are scarce in the literature. In the most recent guidelines published in 2017 by the European Respiratory Society/American Thoracic Society (ERS/ATS) relating to NIV use in patients having ARF, the well-defined recommendation on the selective use of sedation and analgesia is missing. Nevertheless, some national guidelines suggested using sedation for agitation. Methods Electronic databases (PubMed/Medline, Google Scholar, and Cochrane library) from January 1999 to December 2019 were searched systematically for research articles related to sedation and analgosedation in NIV. A brief review of the existing literature related to sedation and analgesia was also done. Review results Sixteen articles (five randomized trials) were analyzed. Other trials, guidelines, and reviews published over the last two decades were also discussed. The present review analysis suggests dexmedetomidine as the emerging sedative agent of choice based on the most recent trials because of better efficacy with an improved and predictable cardiorespiratory profile. Conclusion Current evidence suggests that sedation has a potentially beneficial role in patients at risk of NIV failure due to interface intolerance, anxiety, and pain. However, more randomized controlled trials are needed to comment on this issue and formulate strong evidence-based recommendations. How to cite this article Karim HMR, Šarc I, Calandra C, Spadaro S, Mina B, Ciobanu LD, et al. Role of Sedation and Analgesia during Noninvasive Ventilation: Systematic Review of Recent Evidence and Recommendations. Indian J Crit Care Med 2022;26(8):938–948.
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Affiliation(s)
- Habib MR Karim
- Department of Anaesthesiology and Critical Care, All India Institute of Medical Sciences, Raipur, Chhattisgarh, India
- Habib MR Karim, Department of Anaesthesiology and Critical Care, All India Institute of Medical Sciences, Raipur, Chhattisgarh, India, Phone: +91 9612372585, e-mail:
| | - Irena Šarc
- Department of Morphology, Surgery and Experimental Medicine, Section of Anesthesiology and Intensive Care, University of Ferrara, Ferrara, Italy
| | - Camilla Calandra
- Department of Morphology, Surgery and Experimental Medicine, Section of Anesthesiology and Intensive Care, University of Ferrara, Ferrara, Italy
| | - Savino Spadaro
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Northwell Health, Lenox Hill Hospital, New York, New York, United States
| | - Bushra Mina
- Department of Internal Medicine, University of Medicine and Pharmacy “Grigore T Popa”, Iasi, Romania; Consultant in Internal Medicine and Pulmonology, Clinical Hospital of Rehabilitation, Iasi, Romania
| | - Laura D Ciobanu
- Pulmonology Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Gil Gonçalves
- Pulmonology Department, Santa Marta Hospital, Lisbon, Portugal
| | - Vania Caldeira
- Pulmonology Department, Hospital Pedro Hispano, Matosinhos, Portugal
| | - Bruno Cabrita
- Department of Intensive Care Medicine EOC, Ospedale Regionale Bellinzona e Valli, Bellinzona, Switzerland
| | - Andreas Perren
- Respiratory Unit, AO dei Colli Monaldi Hospital, Naples, Italy
| | - Giuseppe Fiorentino
- Department of Anaesthesiology and Reanimation, General Intensive Care, Yeditepe University Medical Faculty, Istanbul, Turkey
| | - Tughan Utku
- Department of Anesthesiology and Intensive Care Medicine, Catholic University of the Sacred Heart, Italy; Anesthesia, Emergency and Intensive Care Medicine, Agostino Gemelli University Policlinic, IRCCS, Italy
| | - Edoardo Piervincenzi
- Department of Anesthesiology, American University of Beirut-Medical Center, Beirut, Lebanon
| | - Mohamad El-Khatib
- Department of Anesthesiology and Reanimation, Cukurova University Faculty of Dentistry, Adana, Turkey
| | - Nilgün Alpay
- Emergency Department, Santa Maria della Scaletta Hospital, AUSL Imola, Imola, Italy
| | - Rodolfo Ferrari
- Noninvasive Ventilation Department, University Clinic for Pulmonary and Allergic Diseases, Golnik, Slovenia
| | - Mohamed EA Abdelrahim
- Clinical Pharmacy Department, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt
| | - Haitham Saeed
- Clinical Pharmacy Department, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt
| | - Yasmin M Madney
- Clinical Pharmacy Department, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt
| | - Hadeer S Harb
- Clinical Pharmacy Department, Faculty of Pharmacy, Beni-Suef University, Beni-Suef, Egypt
| | - Nicola Vargas
- Geriatric and Intensive Geriatric Cares Unit, Medicine Department, “San Giuseppe Moscati” Hospital, Avellino, Italy
| | - Hilmi Demirkiran
- Department of Anaesthesiology and Reanimation, Faculty of Medicine, Van Yuzuncu Yil University, Van, Turkey
| | - Pradipta Bhakta
- Department of Anaesthesia and Intensive Care, Cork University Hospital, Cork, Ireland
| | - Peter Papadakos
- Department of Anesthesiology, University of Rochester, Rochester, New York, United States
| | - Manuel Á Gómez-Ríos
- Department of Anesthesia and Perioperative Medicine, Complejo Hospitalario Universitario de A Coruña, Galicia, Spain
| | - Alfredo Abad
- Anestesia y Reanimación, Hospital Universitario La Paz, Madrid, Spain
| | - Jaber S Alqahtani
- Department of Respiratory Care, Prince Sultan Military College of Health Sciences, Dammam, Saudi Arabia
| | - Vijay Hadda
- Department of Pulmonary, Critical Care and Sleep Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - Subrata K Singha
- Department of Anaesthesiology and Critical Care, All India Institute of Medical Sciences, Raipur, Chhattisgarh, India
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Borrás A, Henriques B, Gonçalves G, Fraile J, Pereira E, López-Periago AM, Domingo C. Graphene Oxide/Polyethylenimine Aerogels for the Removal of Hg(II) from Water. Gels 2022; 8:gels8070452. [PMID: 35877537 PMCID: PMC9317132 DOI: 10.3390/gels8070452] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2022] [Revised: 07/15/2022] [Accepted: 07/17/2022] [Indexed: 01/27/2023] Open
Abstract
This article reports the synthesis of an aerogel involving reduced graphene oxide (rGO) and polyethylenimine (PEI), and describes its potential application as an effective sorbent to treat Hg(II) contaminated water. The rGO/PEI sorbent was synthetized using a supercritical CO2 method. N2 physisorption, electron microscopy, and elemental mapping were applied to visualize the meso/macroporous morphology formed by the supercritical drying. The advantages of the synthetized materials are highlighted with respect to the larger exposed GO surface for the PEI grafting of aerogels vs. cryogels, homogeneous distribution of the nitrogenated amino groups in the former and, finally, high Hg(II) sorption capacities. Sorption tests were performed starting from water solutions involving traces of Hg(II). Even though, the designed sorbent was able to eliminate almost all of the metal from the water phase, attaining in very short periods of time residual Hg(II) values as low as 3.5 µg L−1, which is close to the legal limits of drinking water of 1–2 µg L−1. rGO/PEI exhibited a remarkably high value for the maximum sorption capacity of Hg(II), in the order of 219 mg g−1. All of these factors indicate that the designed rGO/PEI aerogel can be considered as a promising candidate to treat Hg(II) contaminated wastewater.
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Affiliation(s)
- Alejandro Borrás
- Materials Science Institute of Barcelona (ICMAB-CSIC), Campus UAB, 08193 Barcelona, Spain; (A.B.); (J.F.)
| | - Bruno Henriques
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (B.H.); (E.P.)
| | - Gil Gonçalves
- TEMA, Mechanical Engineering Department, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Julio Fraile
- Materials Science Institute of Barcelona (ICMAB-CSIC), Campus UAB, 08193 Barcelona, Spain; (A.B.); (J.F.)
| | - Eduarda Pereira
- LAQV-REQUIMTE, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; (B.H.); (E.P.)
| | - Ana M. López-Periago
- Materials Science Institute of Barcelona (ICMAB-CSIC), Campus UAB, 08193 Barcelona, Spain; (A.B.); (J.F.)
- Correspondence: (A.M.L.-P.); (C.D.)
| | - Concepción Domingo
- Materials Science Institute of Barcelona (ICMAB-CSIC), Campus UAB, 08193 Barcelona, Spain; (A.B.); (J.F.)
- Correspondence: (A.M.L.-P.); (C.D.)
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20
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Gonçalves G, Andriolo U. Operational use of multispectral images for macro-litter mapping and categorization by Unmanned Aerial Vehicle. Mar Pollut Bull 2022; 176:113431. [PMID: 35158175 DOI: 10.1016/j.marpolbul.2022.113431] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 11/18/2021] [Revised: 02/01/2022] [Accepted: 02/03/2022] [Indexed: 06/14/2023]
Abstract
The use of Unmanned Aerial Systems (UAS, aka drones) has shown to be feasible to perform marine litter surveys. We operationally tested the use of multispectral images (5 bands) to classify litter type and material on a beach-dune system. For litter categorization by their multispectral characteristics, the Spectral Angle Mapping (SAM) technique was adopted. The SAM-based categorization of litter agreed with the visual classification, thus multispectral images can be used to fasten and/or making more robust the manual RGB image screening. Fully automated detection returned an F-score of 0.64, and a reasonable categorization of litter. Overall, the image-based litter density maps were in line with the manual detection. Assessments were promising given the complexity of the study area, where different dunes plants and partially-buried items challenged the UAS-based litter detection. The method can be easily implemented for both floating and beached litter, to advance litter survey in the environment.
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Affiliation(s)
- Gil Gonçalves
- INESC Coimbra, Department of Electrical and Computer Engineering, Polo 2, 3030 - 290 Coimbra, Portugal; University of Coimbra, Department of Mathematics, Apartado 3008 EC Santa Cruz, 3001 - 501 Coimbra, Portugal
| | - Umberto Andriolo
- INESC Coimbra, Department of Electrical and Computer Engineering, Polo 2, 3030 - 290 Coimbra, Portugal.
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21
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Guia M, Alpay N, Gerardo A, Madney Y, Abdelrahim M, Saeed H, Harb H, Gonçalves G, Cabrita B, Alqahtani J, El-Khatib M, Gómez-Ríos M, Fakharian A, Ciobanu L, Karim HMR, Piervincenzi E, Scharffenberg M, Steiropoulos P, LeMaster W, Barjaktarevic I, Wittenstein J, Diaz-Abad M, Perren A, Nicolini A, Spadaro S, Garuti G, Petroianni A, Esquinas A. High-Flow Nasal Oxygen Therapy in Acute Hypoxemic Respiratory Failure: Concise Review on Technology and Initial Methodology. Turk Thorac J 2022; 22:494-500. [PMID: 35110267 DOI: 10.5152/turkthoracj.2021.20213] [Citation(s) in RCA: 2] [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: 11/22/2022]
Abstract
High-flow nasal cannula oxygen therapy (HFNCOT) system consists of an air/oxygen supply system capable of delivering up to 100% humidified and heated oxygen at a flow rate of up to 80 L/min. The system includes a blender, active humidifier, single heated tube, and nasal cannula. HFNCOT has many physiological advantages compared with other standard oxygen therapies, such as anatomical dead space washout, more constant fraction of inspired oxygen, positive end-expiratory (PEEP) effect, supplement of adequate humidification and maintenance of muco-ciliary function. HFNCOT is mostly used for hypoxemic acute respiratory failure, although it also has other indications. HFNCOT is a common choice of physicians as its technology makes it more silent and comfortable. Though HFNCOT is used in many clinical settings, there is a lack of publications addressing devices and initial settings. We present a review on HFNCOT, with focus on device and application methodology.
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Affiliation(s)
- Miguel Guia
- Pulmonology Department, Hospital Professor Doutor Fernando Fonseca, Lisbon, Portugal
| | - Nilgun Alpay
- Department of Anesthesiology and Reanimation, Dentistry Faculty, Çukurova University, Adana, Turkey
| | - António Gerardo
- Pulmonology Department, Hospital Professor Doutor Fernando Fonseca, Lisbon, Portugal
| | - Yasmin Madney
- Clinical Pharmacy Department, Faculty of Pharmacy, Beni-suef University, Beni-suef, Egypt
| | - Mohamed Abdelrahim
- Clinical Pharmacy Department, Faculty of Pharmacy, Beni-suef University, Beni-suef, Egypt
| | - Haitham Saeed
- Clinical Pharmacy Department, Faculty of Pharmacy, Beni-suef University, Beni-suef, Egypt
| | - Hadeer Harb
- Clinical Pharmacy Department, Faculty of Pharmacy, Beni-suef University, Beni-suef, Egypt
| | - Gil Gonçalves
- Pulmonology Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Bruno Cabrita
- Pulmonology Department, Hospital Pedro Hispano, Matosinhos, Portugal
| | - Jaber Alqahtani
- Department of Respiratory Care, Prince Sultan Military College of Health Sciences, Dammam, Saudi Arabia
| | - Mohamad El-Khatib
- Department of Anesthesiology, Director of Respiratory Therapy, American University of Beirut, Beirut, Lebanon
| | - Manuel Gómez-Ríos
- Department of Anaesthesia and Perioperative Medicine, Complejo Hospitalario Universitario de A Coruña, A Coruña, Galicia, Spain
| | - Atefeh Fakharian
- Chronic Respiratory Diseases Research Center (CRDRC), National Research Institute of Tuberculosis and Lung Diseases (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Laura Ciobanu
- Department of Internal Medicine, University of Medicine and Pharmacy "Grigore T Popa", Iasi, Romania
| | - Habib Md Reazaul Karim
- Department of Anaesthesiology and Critical Care, All India Institute of Medical Sciences, Raipur, India
| | - Edoardo Piervincenzi
- Department of Anesthesia and Intensive Care, Sapienza University of Rome, Rome, Italy
| | - Martin Scharffenberg
- Department of Anaesthesiology and Intensive Care Medicine University Hospital Carl Gustav Carus at Technische Universität Dresden, Dresden, Germany
| | | | - William LeMaster
- Division of Pulmonary and Critical Care Medicine, UCLA David Geffen School of Medicine, Los Angeles, USA
| | - Igor Barjaktarevic
- Division of Pulmonary and Critical Care Medicine, UCLA David Geffen School of Medicine, Los Angeles, USA
| | - Jakob Wittenstein
- Department of Anaesthesiology and Intensive Care Medicine University Hospital Carl Gustav Carus at Technische Universität Dresden, Dresden, Germany
| | - Montserrat Diaz-Abad
- Division of Pulmonary and Critical Care Medicine University of Maryland School of Medicine Baltimore, USA
| | - Andreas Perren
- Primario Medicina Intensiva, Ospedale Regionale Bellinzona e Valli, Bellinzona, Switzerland
| | - Antonello Nicolini
- Respiratory Diseases Unit, General Hospital Sestri Levante, Sestri Levante, Italy
| | - Savino Spadaro
- Department Morphology, Surgery And Experimental Medicine, Intensive Care Unit, University of Ferrara, Ferrara, Italy
| | | | - Angelo Petroianni
- Respiratory Diseases Unit, Respiratory Intensive Care Unit, Policlinico Umberto I Sapienza University of Rome, Italy
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22
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Frutuoso L, Pereira AM, Oliveira V, Gonçalves G, Nora M. Hepatic Actinomycosis Mimicking Malignancy After Pancreaticoduodenectomy: A Case Report. Cureus 2022; 14:e21234. [PMID: 35186530 PMCID: PMC8844254 DOI: 10.7759/cureus.21234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/12/2022] [Indexed: 11/05/2022] Open
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23
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Leão T, Duarte G, Gonçalves G. Preparedness in a public health emergency: determinants of willingness and readiness to respond in the onset of the COVID-19 pandemic. Public Health 2022; 203:43-46. [PMID: 35026579 PMCID: PMC8743818 DOI: 10.1016/j.puhe.2021.11.021] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2021] [Revised: 11/10/2021] [Accepted: 11/27/2021] [Indexed: 11/28/2022]
Abstract
OBJECTIVES Healthcare professionals' high risk of infection and burnout in the first months of the COVID-19 pandemic probably hindered their much-needed preparedness to respond. We aimed to inform how individual and institutional factors contributed for the preparedness to respond during the first months of a public health emergency. STUDY DESIGN Cross-sectional study. METHODS We surveyed healthcare workers from a Local Health Unit in Portugal, which comprises primary health care centers and hospital services, including public health units and intensive care units, in the second and third months of the COVID-19 epidemic in Portugal. The 460 answers, completed by 252 participants (about 10% of the healthcare workers), were analyzed using descriptive statistics and multiple logistic regressions. We estimated adjusted odds ratios for the readiness and willingness to respond. RESULTS Readiness to respond was associated with the perception of adequate infrastructures (aOR = 4.04, P < 0.005), lack of access to personal protective equipment (aOR = 0.26, P < 0.05) and organization (aOR = 0.31, P < 0.05). The willingness to act was associated with the perception of not being able to make a difference (aOR = 0.05, P < 0.005), risk of work-related burnout (aOR = 21.21, P < 0.01) and experiencing colleagues or patients' deaths due to COVID-19 (aOR = 0.24, P < 0.05). CONCLUSIONS Adequate organization, infrastructures, and access to personal protective equipment may be crucial for workers' preparedness in a new public health emergency, as well workers' understanding of their roles and expected impact. These factors, together with the risk of work-related burnout, shall be taken into account in the planning of the response of healthcare institutions in future public health emergencies.
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Affiliation(s)
- T Leão
- EPIUnit, Institute of Public Health, University of Porto, Portugal; Departamento de Ciências da Saúde Pública e Forenses, e Educação Médica, Faculdade de Medicina, Universidade do Porto, Porto, Portugal; Laboratory for Integrative and Translational Research in Population Health (ITR), Portugal.
| | - G Duarte
- Unidade Local de Saúde de Matosinhos, Matosinhos, Portugal
| | - G Gonçalves
- Instituto de Engenharia de Sistemas e Computadores Tecnologia e Ciência (INESCTEC), Porto, Portugal
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24
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Andriolo U, Gonçalves G. Is coastal erosion a source of marine litter pollution? Evidence of coastal dunes being a reservoir of plastics. Mar Pollut Bull 2022; 174:113307. [PMID: 35090292 DOI: 10.1016/j.marpolbul.2021.113307] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 11/23/2021] [Revised: 12/14/2021] [Accepted: 12/28/2021] [Indexed: 05/27/2023]
Abstract
This baseline reports scientific evidence of marine litter items embedded in the dune volume at two study sites on the North Atlantic Portuguese coast. We described how stranded litter participate in the sand dune growth/erosion processes on a natural beach-dune system. From the storm-eroded foredunes on the urbanized beach, we documented exhumed plastics with age up to 38 years. Whether litter burial was due to beach-dune morphodynamic processes, or to irresponsible and/or illegal dumping in the past, this work emphasises the need of improving buried litter census and monitoring on coastal dunes. Coastal erosion processes may further exhume litter buried in dune volumes and on other coastal environments over short- and long-term, re-exposing items into the marine environment. Thus, coastal erosion can be accounted as a secondary diffuse source of littering pollution, beside the multiple sources already identified in the environment.
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Affiliation(s)
- Umberto Andriolo
- INESC Coimbra, Department of Electrical and Computer Engineering, Polo 2, 3030-290 Coimbra, Portugal.
| | - Gil Gonçalves
- INESC Coimbra, Department of Electrical and Computer Engineering, Polo 2, 3030-290 Coimbra, Portugal; University of Coimbra, Department of Mathematics, Apartado 3008, EC Santa Cruz, 3001 - 501 Coimbra, Portugal.
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25
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Amado A, Castro B, Torre AP, Graça S, Tavares A, Póvoa A, Soares C, Gonçalves G. Serum TSH as a predictor of malignancy in indeterminate thyroid nodules. Ann R Coll Surg Engl 2021; 104:380-384. [PMID: 34939834 DOI: 10.1308/rcsann.2021.0196] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
INTRODUCTION Thyroid nodules are lesions that are radiologically distinct from the thyroid parenchyma. Cervical ultrasound diagnoses 19-67% of nodules and is crucial in identifying those that lack cytological characterisation. Approximately 25% of biopsies reveal an indeterminate cytological result (Bethesda III), in which the risk of malignancy is variable (5-15%). The clinical importance of the diagnostic strategy used for thyroid nodules results from the need to exclude malignancy. The aim of this study was to evaluate the usefulness of serum thyroid-stimulating hormone (TSH) levels as a predictor of malignancy in cytologically indeterminate thyroid nodules. METHODS Our retrospective study included 40 patients with cytologically indeterminate thyroid nodules seen in our hospital between January 2013 and December 2017. Clinical parameters were reviewed, including age, gender, serum TSH levels, family history of thyroid carcinoma, radiation exposure and some sonographic features of the nodules. Statistical analysis was performed using SPSS. Statistical significance was defined as p<0.05. RESULTS Female gender was predominant (85%) and the mean (SD) age was 53.3 (15) years. Thyroid carcinoma was confirmed in 28% of patients. Median TSH levels were higher in patients with malignant (2.73µIU/ml) compared with benign (1.56µIU/ml) nodules (p<0.05). We demonstrated an increased risk of malignancy in patients with TSH levels of 2.68µIU/ml or above (p<0.05). CONCLUSION Higher serum TSH levels are associated with an increased risk of thyroid carcinoma in cytologically indeterminate nodules. TSH can become a fundamental diagnostic tool in stratifying the risk of malignancy and assist in diagnostic and therapeutic approaches to these nodules.
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Affiliation(s)
- A Amado
- Vila Nova de Gaia/Espinho Hospital Center (CHVNG/E), Vila Nova de Gaia, Portugal
| | - B Castro
- Vila Nova de Gaia/Espinho Hospital Center (CHVNG/E), Vila Nova de Gaia, Portugal
| | - A P Torre
- Vila Nova de Gaia/Espinho Hospital Center (CHVNG/E), Vila Nova de Gaia, Portugal
| | - S Graça
- Vila Nova de Gaia/Espinho Hospital Center (CHVNG/E), Vila Nova de Gaia, Portugal
| | - A Tavares
- Vila Nova de Gaia/Espinho Hospital Center (CHVNG/E), Vila Nova de Gaia, Portugal
| | - A Póvoa
- Vila Nova de Gaia/Espinho Hospital Center (CHVNG/E), Vila Nova de Gaia, Portugal
| | - C Soares
- Vila Nova de Gaia/Espinho Hospital Center (CHVNG/E), Vila Nova de Gaia, Portugal
| | - G Gonçalves
- Vila Nova de Gaia/Espinho Hospital Center (CHVNG/E), Vila Nova de Gaia, Portugal
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26
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Frutuoso L, Pereira AM, Carvalho L, Gonçalves G, Nora M. Adenomyomatous Hyperplasia of Ampulla of Vater and a Concomitant Renal Tumor: A Case Report. Cureus 2021; 13:e20258. [PMID: 35018260 PMCID: PMC8739335 DOI: 10.7759/cureus.20258] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/06/2021] [Indexed: 11/05/2022] Open
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27
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Sciortino A, Ferrante F, Gonçalves G, Tobias G, Popescu R, Gerthsen D, Mauro N, Giammona G, Buscarino G, Gelardi FM, Agnello S, Cannas M, Duca D, Messina F. Ultrafast Interface Charge Separation in Carbon Nanodot-Nanotube Hybrids. ACS Appl Mater Interfaces 2021; 13:49232-49241. [PMID: 34609127 PMCID: PMC8532113 DOI: 10.1021/acsami.1c16929] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Carbon dots are an emerging family of zero-dimensional nanocarbons behaving as tunable light harvesters and photoactivated charge donors. Coupling them to carbon nanotubes, which are well-known electron acceptors with excellent charge transport capabilities, is very promising for several applications. Here, we first devised a route to achieve the stable electrostatic binding of carbon dots to multi- or single-walled carbon nanotubes, as confirmed by several experimental observations. The photoluminescence of carbon dots is strongly quenched when they contact either semiconductive or conductive nanotubes, indicating a strong electronic coupling to both. Theoretical simulations predict a favorable energy level alignment within these complexes, suggesting a photoinduced electron transfer from dots to nanotubes, which is a process of high functional interest. Femtosecond transient absorption confirms indeed an ultrafast (<100 fs) electron transfer independent of nanotubes being conductive or semiconductive in nature, followed by a much slower back electron transfer (≈60 ps) from the nanotube to the carbon dots. The high degree of charge separation and delocalization achieved in these nanohybrids entails significant photocatalytic properties, as we demonstrate by the reduction of silver ions in solution. The results are very promising in view of using these "all-carbon" nanohybrids as efficient light harvesters for applications in artificial photocatalysis and photosynthesis.
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Affiliation(s)
- Alice Sciortino
- Dipartimento
di Fisica e Chimica—Emilio Segrè, Universitá degli studi di Palermo, Viale delle Scienze, Edificio 17, Palermo 90128, Italy
| | - Francesco Ferrante
- Dipartimento
di Fisica e Chimica—Emilio Segrè, Universitá degli studi di Palermo, Viale delle Scienze, Edificio 17, Palermo 90128, Italy
| | - Gil Gonçalves
- TEMA,
Mechanical Engineering Department, University
of Aveiro, 3810-193 Aveiro, Portugal
| | - Gerard Tobias
- Institut
de Ciència de Materials de Barcelona (ICMAB-CSIC), Campus de la UAB, Bellaterra (Barcelona) 08193, Spain
| | - Radian Popescu
- Laboratory
for Electron Microscopy, Karlsruhe Institute
of Technology, Engesserstrasse
7, Karlsruhe 76131, Germany
| | - Dagmar Gerthsen
- Laboratory
for Electron Microscopy, Karlsruhe Institute
of Technology, Engesserstrasse
7, Karlsruhe 76131, Germany
| | - Nicolò Mauro
- Dipartimento
di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), Università degli studi di Palermo, Via Archirafi 32, Palermo 90123, Italy
| | - Gaetano Giammona
- Dipartimento
di Scienze e Tecnologie Biologiche, Chimiche e Farmaceutiche (STEBICEF), Università degli studi di Palermo, Via Archirafi 32, Palermo 90123, Italy
| | - Gianpiero Buscarino
- Dipartimento
di Fisica e Chimica—Emilio Segrè, Universitá degli studi di Palermo, Viale delle Scienze, Edificio 17, Palermo 90128, Italy
- CHAB—ATeN
Center, Università degli studi di
Palermo, Viale delle
scienze, Edificio 18, Palermo 90128, Italy
| | - Franco M. Gelardi
- Dipartimento
di Fisica e Chimica—Emilio Segrè, Universitá degli studi di Palermo, Viale delle Scienze, Edificio 17, Palermo 90128, Italy
| | - Simonpietro Agnello
- Dipartimento
di Fisica e Chimica—Emilio Segrè, Universitá degli studi di Palermo, Viale delle Scienze, Edificio 17, Palermo 90128, Italy
- CHAB—ATeN
Center, Università degli studi di
Palermo, Viale delle
scienze, Edificio 18, Palermo 90128, Italy
| | - Marco Cannas
- Dipartimento
di Fisica e Chimica—Emilio Segrè, Universitá degli studi di Palermo, Viale delle Scienze, Edificio 17, Palermo 90128, Italy
| | - Dario Duca
- Dipartimento
di Fisica e Chimica—Emilio Segrè, Universitá degli studi di Palermo, Viale delle Scienze, Edificio 17, Palermo 90128, Italy
| | - Fabrizio Messina
- Dipartimento
di Fisica e Chimica—Emilio Segrè, Universitá degli studi di Palermo, Viale delle Scienze, Edificio 17, Palermo 90128, Italy
- CHAB—ATeN
Center, Università degli studi di
Palermo, Viale delle
scienze, Edificio 18, Palermo 90128, Italy
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28
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Semitela Â, Carvalho S, Fernandes C, Pinto S, Fateixa S, Nogueira HIS, Bdikin I, Completo A, Marques PAAP, Gonçalves G. Biomimetic Graphene/Spongin Scaffolds for Improved Osteoblasts Bioactivity via Dynamic Mechanical Stimulation. Macromol Biosci 2021; 22:e2100311. [PMID: 34610190 DOI: 10.1002/mabi.202100311] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2021] [Revised: 09/21/2021] [Indexed: 01/03/2023]
Abstract
Biomimetics offers excellent prospects for design a novel generation of improved biomaterials. Here the controlled integration of graphene oxide (GO) derivatives with a 3D marine spongin (MS) network is explored to nanoengineer novel smart bio-based constructs for bone tissue engineering. The results point out that 3D MS surfaces can be homogeneously coated by layer-by-layer (LbL) assembly of oppositely charged polyethyleneimine (PEI) and GO. Notably, the GOPEI@MS bionanocomposites present a high structural and mechanical stability under compression tests in wet conditions (shape memory). Dynamic mechanically (2 h of sinusoidal compression cyclic interval (0.5 Hz, 0-10% strain)/14 d) stimulates GOPEI@MS seeded with osteoblast (MC3T3-E1), shows a significant improvement in bioactivity, with cell proliferation being two times higher than under static conditions. Besides, the dynamic assays show that GOPEI@MS bionanocomposites are able to act as mechanical stimulus-responsive scaffolds able to resemble physiological bone extracellular matrix (ECM) requirements by strongly triggering mineralization of the bone matrix. These results prove that the environment created by the system cell-GOPEI@MS is suitable for controlling the mechanisms regulating mechanical stimulation-induced cell proliferation for potential in vivo experimentation.
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Affiliation(s)
- Ângela Semitela
- TEMA, Mechanical Engineering Department, University of Aveiro, Aveiro, 3810-193, Portugal
| | - Sara Carvalho
- TEMA, Mechanical Engineering Department, University of Aveiro, Aveiro, 3810-193, Portugal
| | - Cristiana Fernandes
- TEMA, Mechanical Engineering Department, University of Aveiro, Aveiro, 3810-193, Portugal
| | - Susana Pinto
- TEMA, Mechanical Engineering Department, University of Aveiro, Aveiro, 3810-193, Portugal
| | - Sara Fateixa
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Aveiro, 3810-193, Portugal
| | - Helena I S Nogueira
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, Aveiro, 3810-193, Portugal
| | - Igor Bdikin
- TEMA, Mechanical Engineering Department, University of Aveiro, Aveiro, 3810-193, Portugal
| | - António Completo
- TEMA, Mechanical Engineering Department, University of Aveiro, Aveiro, 3810-193, Portugal
| | - Paula A A P Marques
- TEMA, Mechanical Engineering Department, University of Aveiro, Aveiro, 3810-193, Portugal
| | - Gil Gonçalves
- TEMA, Mechanical Engineering Department, University of Aveiro, Aveiro, 3810-193, Portugal
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29
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Andriolo U, Gonçalves G, Rangel-Buitrago N, Paterni M, Bessa F, Gonçalves LMS, Sobral P, Bini M, Duarte D, Fontán-Bouzas Á, Gonçalves D, Kataoka T, Luppichini M, Pinto L, Topouzelis K, Vélez-Mendoza A, Merlino S. Drones for litter mapping: An inter-operator concordance test in marking beached items on aerial images. Mar Pollut Bull 2021; 169:112542. [PMID: 34052588 DOI: 10.1016/j.marpolbul.2021.112542] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [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: 01/27/2021] [Revised: 05/13/2021] [Accepted: 05/19/2021] [Indexed: 06/12/2023]
Abstract
Unmanned aerial systems (UAS, aka drones) are being used to map macro-litter on the environment. Sixteen qualified researchers (operators), with different expertise and nationalities, were invited to identify, mark and categorize the litter items (manual image screening, MS) on three UAS images collected at two beaches. The coefficient of concordance (W) among operators varied between 0.5 and 0.7, depending on the litter parameter (type, material and colour) considered. Highest agreement was obtained for the type of items marked on the highest resolution image, among experts in litter surveys (W = 0.86), and within territorial subgroups (W = 0.85). Therefore, for a detailed categorization of litter on the environment, the MS should be performed by experienced and local operators, familiar with the most common type of litter present in the target area. This work provides insights for future operational improvements and optimizations of UAS-based images analysis to survey environmental pollution.
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Affiliation(s)
- Umberto Andriolo
- INESC Coimbra, Department of Electrical and Computer Engineering, Polo 2, 3030-290 Coimbra, Portugal.
| | - Gil Gonçalves
- INESC Coimbra, Department of Electrical and Computer Engineering, Polo 2, 3030-290 Coimbra, Portugal; University of Coimbra, Department of Mathematics, Coimbra, Portugal.
| | - Nelson Rangel-Buitrago
- Programa de Física, Facultad de Ciencias Básicas, Universidad del Atlántico, Barranquilla, Atlántico, Colombia; Programa de Biología, Facultad de Ciencias Básicas, Universidad del Atlántico, Barranquilla, Atlántico, Colombia.
| | - Marco Paterni
- CNR-National Research Council, Institute of Clinical Physiology, Italy.
| | - Filipa Bessa
- University of Coimbra, MARE - Marine and Environmental Sciences Center, Department of Life Sciences, Calçada Martim de Freitas, 3000-456 Coimbra, Portugal.
| | - Luisa M S Gonçalves
- INESC Coimbra, Department of Electrical and Computer Engineering, Polo 2, 3030-290 Coimbra, Portugal; School of Technology and Management, Polytechnic of Leiria, Nova IMS University Lisbon, Portugal.
| | - Paula Sobral
- MARE- Marine and Environmental Sciences Centre, NOVA School of Science and Technology, NOVA University Lisbon, Portugal.
| | - Monica Bini
- Department of Earth Sciences, University of Pisa, Via S. Maria, 53, 56126 Pisa, Italy; Istituto Nazionale di Geofisica e Vulcanologia (INGV), Sez. Pisa, via Cesare Battisti 53, Pisa 56125, Italy.
| | - Diogo Duarte
- INESC Coimbra, Department of Electrical and Computer Engineering, Polo 2, 3030-290 Coimbra, Portugal.
| | - Ángela Fontán-Bouzas
- Centro de Investigación Mariña, University of Vigo, GEOMA, Campus de Santiago, 36310 Vigo, Spain; Physics Department & CESAM, Universidade de Aveiro, Campus de Santiago, 3810-193 Aveiro, Portugal.
| | - Diogo Gonçalves
- INESC Coimbra, Department of Electrical and Computer Engineering, Polo 2, 3030-290 Coimbra, Portugal; Department of Civil Engineering, University of Coimbra, Rua Luís Reis Santos - Pólo II, 3030-788 Coimbra, Portugal.
| | - Tomoya Kataoka
- Department of Civil & Environmental Engineering, Ehime University, 3 Bunkyo-cho, Matsuyama 790-8577, Japan.
| | - Marco Luppichini
- Department of Earth Sciences, University of Pisa, Via S. Maria, 53, 56126 Pisa, Italy; Department of Earth Sciences, University of Florence, Via La Pira 4, 50121 Florence, Italy.
| | - Luis Pinto
- University of Coimbra, CMUC, Department of Mathematics, Coimbra, Portugal.
| | | | - Anubis Vélez-Mendoza
- Programa de Biología, Facultad de Ciencias Básicas, Universidad del Atlántico, Barranquilla, Atlántico, Colombia.
| | - Silvia Merlino
- CNR-National Research Council, Institute of Marine Science ISMAR-CNR, 19032 Lerici, SP, Italy.
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Andriolo U, Gonçalves G, Sobral P, Bessa F. Spatial and size distribution of macro-litter on coastal dunes from drone images: A case study on the Atlantic coast. Mar Pollut Bull 2021; 169:112490. [PMID: 34022556 DOI: 10.1016/j.marpolbul.2021.112490] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [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: 12/15/2020] [Revised: 05/03/2021] [Accepted: 05/12/2021] [Indexed: 06/12/2023]
Abstract
This work analyses the cross-shore (80 m) and long-shore (200 m) spatial and size distribution of macro-litter on coastal dunes, employing a mapping framework based on an Unmanned Aerial System (UAS, aka drone) and a GIS mobile application. Over the cross-shore, plastic percentage increased from 60% to 90% landwards. The largest items (processed wood) were found on the embryo dune. Plastic bottles and paper napkins were trapped by the foredune grass, while the largest fishing-related items were intercepted by the low scrub plant community on the backdune. Over the long-shore, plastic percentage and items size increased from the urbanized area towards the natural dunes. This work assessed the abundance of marine litter on coastal dune sectors, underlining the role of distinct vegetation types in trapping items of different size. The mapping framework can promote further marine litter monitoring programs and support specific strategies for protecting the dune ecosystems.
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Affiliation(s)
- Umberto Andriolo
- INESC Coimbra, Department of Electrical and Computer Engineering, Coimbra, Portugal.
| | - Gil Gonçalves
- INESC Coimbra, Department of Electrical and Computer Engineering, Coimbra, Portugal; University of Coimbra, Department of Mathematics, Coimbra, Portugal.
| | - Paula Sobral
- MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal.
| | - Filipa Bessa
- MARE - Marine and Environmental Sciences Centre, C/o Department of Life Sciences, Faculty of Sciences and Technology, University of Coimbra, Coimbra, Portugal.
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Pinto L, Andriolo U, Gonçalves G. Detecting stranded macro-litter categories on drone orthophoto by a multi-class Neural Network. Mar Pollut Bull 2021; 169:112594. [PMID: 34118575 DOI: 10.1016/j.marpolbul.2021.112594] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [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: 11/18/2020] [Revised: 05/19/2021] [Accepted: 05/31/2021] [Indexed: 06/12/2023]
Abstract
The use of Unmanned Aerial Systems (UAS, aka drones) images for mapping macro-litter in the environment have been exponentially increasing in the recent years. In this work, we developed a multi-class Neural Network (NN) to automatically identify stranded plastic litter categories on an UAS-derived orthophoto. The best results were assessed for items that did not have substantial intra-class colour variability, such as octopus pots and fishing ropes (F-score = 61%, on average). Instead, performance was poor (37%) for plastic bottles and fragments, due to their changing intra-class colours. On average, the performance improved 24% when the binary detection (litter/non-litter, F-Score = 73%) was considered, however this approach did not discriminate the litter categories. This work gives a new perspective for the automated litter detection on drone images, suggesting that colour-based approach can be used to improve the categorization of stranded litter on UAS orthophoto.
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Affiliation(s)
- Luis Pinto
- University of Coimbra, CMUC, Department of Mathematics, Coimbra, Portugal.
| | - Umberto Andriolo
- INESC Coimbra, Department of Electrical and Computer Engineering, Coimbra, Portugal.
| | - Gil Gonçalves
- INESC Coimbra, Department of Electrical and Computer Engineering, Coimbra, Portugal; University of Coimbra, Department of Mathematics, Coimbra, Portugal.
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Gonçalves G, Saeed H, Abdelrahim ME, Harb HS, Madney YM, Eng K, Karim HMR, El-Khatib M, Mina B, Skoczyński S, Sarc I, Caldeira V, Cabral SM, Cabrita B, Guia M, Duan J, Barjaktarevic I, Fiorentino G, Piervincenzi E, Köksal G, Sarin SO, Papadakos PJ, Bayrakci B, Hadda V, Laier-Groeneveld G, Burns KEA, Scala R, Alcaraz AC, Esquinas AM. Non-invasive ventilation in patients with an altered level of consciousness. A clinical review and practical insights. Adv Respir Med 2021; 88:233-244. [PMID: 32706107 DOI: 10.5603/arm.2020.0110] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [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: 03/27/2020] [Revised: 05/09/2020] [Accepted: 05/12/2020] [Indexed: 11/25/2022]
Abstract
Non-invasive ventilation has gained an increasingly pivotal role in the treatment of acute hypoxemic and/or hypercapnic respira-tory failure and offers multiple advantages over invasive mechanical ventilation. Some of these advantages include the preserva-tion of airway defense mechanisms, a reduced need for sedation, and an avoidance of complications related to endotracheal intubation. Despite its advantages, non-invasive ventilation has some contraindications that include, among them, severe encephalopathy. In this review article, the rationale, evidence, and drawbacks of the use of noninvasive ventilation in the context of hypercapnic and non-hypercapnic patients with an altered level of consciousness are analyzed.
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Affiliation(s)
- Gil Gonçalves
- Pulmonology Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal.
| | - Haitham Saeed
- Clinical Pharmacy Department, Faculty of Pharmacy, Beni-Suef University, Beni-suef, Egypt
| | - Mohamed E Abdelrahim
- Clinical Pharmacy Department, Faculty of Pharmacy, Beni-Suef University, Beni-suef, Egypt
| | - Hadeer S Harb
- Clinical Pharmacy Department, Faculty of Pharmacy, Beni-Suef University, Beni-suef, Egypt
| | - Yasmin M Madney
- Clinical Pharmacy Department, Faculty of Pharmacy, Beni-Suef University, Beni-suef, Egypt
| | - Kevin Eng
- Division of Pulmonary and Critical Care, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, United States
| | - Habid M R Karim
- Department of Anesthesiology and Critical Care, All India Institute of Medical Sciences, Raipur, Chhattisgarh, India
| | - Mohamad El-Khatib
- Department of Anesthesiology, American University of Beirut-Medical Center, Beirut, Lebanon
| | - Bushra Mina
- Department of Medicine, Division of Pulmonary and Critical Care Medicine, Northwell Health, Lenox Hill Hospital, New York, United States
| | - Szymon Skoczyński
- Department of Pulmonology, Faculty of Medical Sciences in Katowice, Medical University of Silesia - Katowice, Poland
| | - Irena Sarc
- Noninvasive Ventilation Department, University Clinic for Pulmonary and Allergic Diseases, Golnik, Slovenia
| | - Vânia Caldeira
- Pulmonology Department, Santa Marta Hospital, Lisbon, Portugal
| | - Sara M Cabral
- Pulmonology Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Bruno Cabrita
- Pulmonology Department, Pedro Hispano Hospital, Matosinhos, Portugal
| | - Miguel Guia
- Pulmonology Department, Hospital Professor Doutor Fernando Fonseca, Amadora, Portugal
| | - Jun Duan
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Igor Barjaktarevic
- Division of Pulmonary and Critical Care, Department of Medicine, David Geffen School of Medicine at UCLA, Los Angeles, United States
| | | | | | - Güniz Köksal
- Department of Anaesthesiology and Reanimation, Istanbul University Cerrahpasa Medical Faculty, Istanbul, Turkey
| | - Sibel O Sarin
- Internal Medicine, Istanbul Umraniye Research Hospital, Istanbul, Turkey
| | - Peter J Papadakos
- Department of Anesthesiology, University of Rochester, Rochester, United States
| | - Benan Bayrakci
- Pediatric Intensive Care Department, Hacettepe University, Ankara, Turkey
| | - Vijay Hadda
- Department of Pulmonary, Critical Care & Sleep Medicine, All India Institute of Medical Sciences, New Delhi, India
| | - G Laier-Groeneveld
- Pneumology, Clinical and Home Ventilatory Support and Sleep, Schellstrasse, Bochum, Germany
| | - Karen E A Burns
- Interdepartmental Division of Critical Care Medicine, University of Toronto, Toronto, Canada
| | - Raffaele Scala
- Pulmonology and Respiratory Intensive Care Unit, S Donato Hospital, Arezzo, Italy
| | - Andres C Alcaraz
- Intensive Care and Noninvasive Ventilatory Unit, Hospital Morales Meseguer, Murcia, Spain
| | - Antonio M Esquinas
- Intensive Care and Noninvasive Ventilatory Unit, Hospital Morales Meseguer, Murcia, Spain
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Domingues EM, Gonçalves G, Henriques B, Pereira E, Marques PAAP. High affinity of 3D spongin scaffold towards Hg(II) in real waters. J Hazard Mater 2021; 407:124807. [PMID: 33341578 DOI: 10.1016/j.jhazmat.2020.124807] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/06/2020] [Revised: 11/26/2020] [Accepted: 12/06/2020] [Indexed: 06/12/2023]
Abstract
This study focuses on the ability of commercial natural bath sponges, which are made from the skeletons of marine sponges, to sorb Hg from natural waters. The main component of these bath sponges is spongin, which is a protein-based material, closely related to collagen, offering a plenitude of reactive sites from the great variety of amino acids in the protein chains, where the Hg ions can sorb. For a dose of 40 mg L-1 and initial concentration of 50 μg L-1 of Hg(II), marine spongin (MS) removed ~90% of Hg from 3 water matrixes (ultrapure, bottled, and seawater), corresponding to a residual concentration of ~5 μg L-1, which tends to the recommend value for drinking water of 1 μg L-1. This value was maintained even by increasing the MS dosage, suggesting the existence of a gradient concentration threshold below which the Hg sorption mechanism halts. Kinetic modelling showed that the Pseudo Second-Order equation was the best fit for all the water matrixes, which indicates that the sorption mechanism relies most probably on chemical interactions between the functional groups of spongin and the Hg ions. This material can also be regenerated in HNO3 and reused for Hg sorption, with marginal losses in efficiency, at least for 3 consecutive cycles.
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Affiliation(s)
- Eddy M Domingues
- TEMA, Mechanical Engineering Department, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Gil Gonçalves
- TEMA, Mechanical Engineering Department, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Bruno Henriques
- CESAM & Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal; LAQV-REQUIMTE, Department of Chemistry & Central Laboratory of Analysis, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Eduarda Pereira
- LAQV-REQUIMTE, Department of Chemistry & Central Laboratory of Analysis, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Paula A A P Marques
- TEMA, Mechanical Engineering Department, University of Aveiro, 3810-193 Aveiro, Portugal.
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Andriolo U, Gonçalves G, Sobral P, Fontán-Bouzas Á, Bessa F. Beach-dune morphodynamics and marine macro-litter abundance: An integrated approach with Unmanned Aerial System. Sci Total Environ 2020; 749:141474. [PMID: 32846347 DOI: 10.1016/j.scitotenv.2020.141474] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2020] [Revised: 07/30/2020] [Accepted: 08/02/2020] [Indexed: 06/11/2023]
Abstract
This work shows an integrated approach for coastal environmental monitoring, which aimed to understand the relation between beach-dune morphodynamics, marine litter abundance and environmental forcing. Three unmanned aerial system (UAS) flights were deployed on a beach-dune system at the Atlantic Portuguese coast to assess two main goals: (i) quantifying the morphological changes that occurred among flights, with focus on dune erosion, and (ii) mapping the changes of marine macro-litter abundance on the shore. Two most vulnerable-to-erosion sectors of the beach were identified. In the northern sector, the groin affected the downdrift shoreline, with dune erosion of about 1 m. In the central part of the beach, the dunes recessed about 4 m during the winter, being more exposed to environmental forcing due to the absence of dune vegetation. Marine litter occupation area on the beach decreased from 25% to 20% over the winter, with octopus pots (13%) and fragments (69%) being the most abundant items on average. Litter distribution varied in relation to swash elevation, wind speed and direction. With low swash elevation, the wind played a predominant role in moving the stranded items northwards, whereas high swash elevation concentrated the items at the dune foot. This study emphasizes the potential of UAS in allowing an integrated approach for coastal erosion monitoring and marine litter mapping, and set the ground for marine litter dynamic modelling on the shore.
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Affiliation(s)
- Umberto Andriolo
- INESC-Coimbra, Department of Electrical and Computer Engineering, Coimbra, Portugal.
| | - Gil Gonçalves
- INESC-Coimbra, Department of Electrical and Computer Engineering, Coimbra, Portugal; University of Coimbra, Department of Mathematics, Coimbra, Portugal.
| | - Paula Sobral
- MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal.
| | - Ángela Fontán-Bouzas
- Centro de Investigación Mariña, University of Vigo, GEOMA, Campus de Vigo, As Lagoas, Marcosende, 36310 Vigo, Spain; Physics Department & Centre of Environmental and Marine Studies, University of Aveiro, Portugal.
| | - Filipa Bessa
- University of Coimbra, MARE - Marine and Environmental Sciences Centre, Department of Life Sciences, 3000-456 Coimbra, Portugal.
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Carvalho C, Alba S, Harris R, Abubakar I, Van Hest R, Correia AM, Gonçalves G, Duarte R. Completeness of TB notification in Portugal, 2015: an inventory and capture-recapture study. Int J Tuberc Lung Dis 2020; 24:1186-1193. [PMID: 33256888 DOI: 10.5588/ijtld.20.0094] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND: Despite the steady decline in the last few decades, Portugal remains the Western European country with the highest TB notification rates. The aim of this study was to estimate the completeness of notification to the National Tuberculosis Programme (NTP) Surveillance System (SVIG-TB) in 2015.METHODS: We implemented an inventory study and a three-source log-linear capture-recapture analysis using two additional data sources that were deterministic and probabilistically linked: the national notifiable diseases surveillance system (Sistema Nacional de Vigilância Epidemiológica SINAVE) and the national hospital discharge database (Grupos de Diagnósticos Homogéneos GDH).RESULTS: We identified 2328 unique probable/confirmed TB cases across the three data sources. We found a positive dependency between SVIG-TB and SINAVE (incidence rate ratio IRR 8.9, 95%CI 6.6-12.0) and between GDH and SINAVE (IRR 2.6, 95%CI 2.0-3.4). After adjusting for these dependencies, we estimated that 266 cases (95%CI 198-358) were not reported, indicating a notification (to SVIG-TB) completeness rate of 77.0%.CONCLUSION: True incidence rate of TB in Portugal in 2015 could have been as high as 26.1 per 100 000. This could be an overestimation because of false-positive cases recorded in both SINAVE and GDH or on a smaller scale, false non-matches. Studies aimed at validating potentially false-positive cases should be implemented to address these limitations.
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Affiliation(s)
- C Carvalho
- Multidisciplinary Unit for Biomedical Research (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - S Alba
- Royal Tropical Institute, KIT Health, Amsterdam, The Netherlands
| | - R Harris
- National Infection Service, Public Health England, London
| | - I Abubakar
- Institute for Global Health, University College of London, London, UK
| | - R Van Hest
- Department of Tuberculosis Control, Regional Public Health Service (GGD) Groningen, Groningen, The Netherlands
| | - A M Correia
- Braga Health Centre Group, Portuguese Northern Regional Health Administration Cávado I, Braga
| | - G Gonçalves
- Multidisciplinary Unit for Biomedical Research (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Porto, Portugal
| | - R Duarte
- EPIUnit, Institute of Public Health, University of Porto (ISPUP), Porto, Public Health Science and Medical Education Department, Faculty of Medicine, University of Porto, Porto, Portugal
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Andriolo U, Gonçalves G, Bessa F, Sobral P. Mapping marine litter on coastal dunes with unmanned aerial systems: A showcase on the Atlantic Coast. Sci Total Environ 2020; 736:139632. [PMID: 32485384 DOI: 10.1016/j.scitotenv.2020.139632] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/13/2020] [Revised: 05/19/2020] [Accepted: 05/20/2020] [Indexed: 06/11/2023]
Abstract
Marine litter pollution on coastal dunes has received limited scientific attention when compared with sandy shores. This paper proposes a new framework based on the combined use of Unmanned Aerial Systems (UAS) and a mobile application to map and quantify marine macro-litter (>2.5 cm) accumulation on coastal dunes. The first application on a dune area of 200 m × 80 m at the north-east Atlantic Portuguese coast is shown. Nine different marine litter categories were found, with styrofoam fragments (23% of the total amount) and plastic bottles (20%) being the most abundant items. Plastic was the most common material (76%). The highest number of items (272) was found on the backdune, mostly related with fishing activities (octopus pots and Styrofoam fragments). In contrast, the highest density (0.031 items/m2) was found on the foredune, with the most abundant items associated with human recreational activities (for example, plastic bottles, bags, papers and napkins). Three major marine litter hotspots (~0.1 items/m2) were identified in correspondence of dune blowouts. The recognition of the primary marine litter pathways highlighted the main role that wind and overwash events play on dune contamination, and suggests that the dune ridge restoration can act as a mitigation measure for preventing marine litter accumulation on the backdune. This study shows how UAS offer the possibility of a detailed non-intrusive survey, and gives a new impulse to coastal dune litter monitoring, where the long residence time of marine debris may threaten the bio-ecological equilibrium of these ecosystems.
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Affiliation(s)
- Umberto Andriolo
- INESC-Coimbra, Department of Electrical and Computer Engineering, 3030-290 Coimbra, Portugal.
| | - Gil Gonçalves
- INESC-Coimbra, Department of Electrical and Computer Engineering, 3030-290 Coimbra, Portugal; University of Coimbra, Department of Mathematics, 3001-501 Coimbra, Portugal.
| | - Filipa Bessa
- University of Coimbra, MARE - Marine and Environmental Sciences Centre, Department of Life Sciences, 3000-456 Coimbra. Portugal.
| | - Paula Sobral
- MARE - Marine and Environmental Sciences Centre, Faculdade de Ciências e Tecnologia, Universidade NOVA de Lisboa, Campus da Caparica, 2829-516 Caparica, Portugal.
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Carvalho Sousa S, Magalhães Alves C, Santos S, Marques F, Duarte R, Gonçalves G, Carvalho C. Tuberculosis: where and how fast are stone quarry workers infected? Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa165.796] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Background
In 2018 an annual tuberculosis (TB) screening program targeting stone quarry workers was implemented in two municipalities in Northern Portugal. These have been hotspots for TB (76 and 59 cases per 100 000 population per year in 2012-2016, well above the 18 cases per 100 000 population observed in Portugal in 2016), with 30% of active TB cases occurring among stone quarry workers. Screening in this setting is recommended by the World Health Organization, as exposure to silica and silicosis increase the risk of TB. Occupational health services, TB outpatient centers, the hospital, a laboratory, primary health care and public health services work closely together with employers, employees, municipal council and the community promoting meetings and continuous training.
Screening activities included a symptom questionnaire, chest X-ray and sputum exam; and, after exclusion of active TB, interferon-gamma release assay (IGRA) for latent tuberculosis infection (LTBI). Preventive treatment was offered.
Objective
Assess annual rate of TB infection
Methods
Workers without history of TB/LTBI were IGRA tested in 2018, and retested in 2019. Annual rate of infection was calculated as the proportion of workers IGRA negative in 2018 becoming positive in 2019.
Results
In 2018-2019, 274 workers were screened yearly. In 2018, 22 were diagnosed with LTBI and 26 had previous history of TB/LTBI. Out of 226 IGRA negative workers in 2018, 19 tested positive in 2019 (8.4% annual rate of infection). These individuals were not identified as close contacts of any new TB case and no cases of active TB were reported in their stone quarries. Some active TB cases were regular customers of specific bars.
Conclusions
Active transmission of TB seems to be occurring among stone quarry workers. Workers that converted from IGRA negative to positive had no co-workers with active TB in the study period, suggesting they could have been infected away from the workplace, possibly in community public places.
Key messages
Stone quarry workers in a high-risk TB sub-region were infected at an 8.4% annual rate, and could have been infected in community public places such as bars. Besides screening close contacts and at workplace, more efforts should be made identifying social contacts of active TB cases.
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Affiliation(s)
- S Carvalho Sousa
- Public Health Unit, Northern Regional Health Administration, Paredes, Portugal
- Institute of Biomedical Sciences Abel Salazar, University of Porto, Porto, Portugal
| | - C Magalhães Alves
- Public Health Unit Low Tâmega, Northern Regional Health Administration, Marco de Canaveses, Portugal
- Institute of Biomedical Sciences Abel Salazar, University of Porto, Porto, Portugal
| | - S Santos
- Laboratory of Pneumological Diagnostic Center, Northern Regional Health Administration, Porto, Portugal
| | - F Marques
- Public Health Unit South Sousa Valley, Northern Regional Health Administration, Paredes, Portugal
| | - R Duarte
- Pulmonology Department, Hospital Centre of Vila Nova de Gaia/Espinho EPE, Vila Nova de Gaia, Portugal
- EPIUnit, Public Health Institute, University of Porto, Porto, Portugal
- Public Health Science and Medical Education Department, School of Medicine, University of Porto, Porto, Portugal
| | - G Gonçalves
- Multidisciplinary Unit for Biomedical Research, Institute of Biomedical Sciences Abel Salazar, University of Porto, Porto, Portugal
| | - C Carvalho
- Department of Public Health, Northern Regional Health Administration, Porto, Portugal
- Multidisciplinary Unit for Biomedical Research, Institute of Biomedical Sciences Abel Salazar, University of Porto, Porto, Portugal
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Bessa A, Gonçalves G, Henriques B, Domingues EM, Pereira E, Marques PAAP. Green Graphene-Chitosan Sorbent Materials for Mercury Water Remediation. Nanomaterials (Basel) 2020; 10:nano10081474. [PMID: 32731383 PMCID: PMC7466593 DOI: 10.3390/nano10081474] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [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: 06/18/2020] [Revised: 07/14/2020] [Accepted: 07/24/2020] [Indexed: 11/16/2022]
Abstract
The development of new graphene-based nanocomposites able to provide synergistic effects for the adsorption of toxic heavy metals in realistic conditions (environment) is of higher demand for future applications. This work explores the preparation of a green nanocomposite based on the self-assembly of graphene oxide (GO) with chitosan (CH) for the remediation of Hg(II) in different water matrices, including ultrapure and natural waters (tap water, river water, and seawater). Starting at a concentration of 50 μg L-1, the results showed that GO-CH nanocomposite has an excellent adsorption capacity of Hg (II) using very small doses (10 mg L-1) in ultrapure water with a removal percentage (% R) of 97 % R after only two hours of contact time. In the case of tap water, the % R was 81.4% after four hours of contact time. In the case of river and seawater, the GO-CH nanocomposite showed a limited performance due the high complexity of the water matrices, leading to a residual removal of Hg(II). The obtained removal of Hg(II) at equilibrium in river and seawater for GO-CH was 13% R and 7% R, respectively. Our studies conducted with different mimicked sea waters revealed that the removal of mercury is not affected by the presence of NO3- and Na+ (>90% R of Hg(II)); however, in the presence of Cl-, the mercury removal was virtually nonexistent (1% R of Hg(II)), most likely because of the formation of very stable chloro-complexes of Hg(II) with less affinity towards GO-CH.
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Affiliation(s)
- Ana Bessa
- Centro de Tecnologia Mecânica e Automação (TEMA), Mechanical Engineering Department, University of Aveiro, 3810-193 Aveiro, Portugal; (A.B.); (G.G.); (E.M.D.)
- Centro de Estudos do Ambiente e do Mar (CESAM) & Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Gil Gonçalves
- Centro de Tecnologia Mecânica e Automação (TEMA), Mechanical Engineering Department, University of Aveiro, 3810-193 Aveiro, Portugal; (A.B.); (G.G.); (E.M.D.)
| | - Bruno Henriques
- Centro de Estudos do Ambiente e do Mar (CESAM) & Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal;
- Laboratório Associado para a Química Verde-Rede de Química e Tecnologia (LAQV-REQUIMTE) & Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Eddy M. Domingues
- Centro de Tecnologia Mecânica e Automação (TEMA), Mechanical Engineering Department, University of Aveiro, 3810-193 Aveiro, Portugal; (A.B.); (G.G.); (E.M.D.)
| | - Eduarda Pereira
- Laboratório Associado para a Química Verde-Rede de Química e Tecnologia (LAQV-REQUIMTE) & Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal;
| | - Paula A. A. P. Marques
- Centro de Tecnologia Mecânica e Automação (TEMA), Mechanical Engineering Department, University of Aveiro, 3810-193 Aveiro, Portugal; (A.B.); (G.G.); (E.M.D.)
- Correspondence:
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R Karim HM, Gonçalves G, Esquinas AM. Immediate hemodynamic and gaseous exchange; effect of Bi-Level positive airway pressure after cardiac surgery: Our insight to Hamid et al.'s study. Ann Card Anaesth 2020; 23:372. [PMID: 32687104 PMCID: PMC7559972 DOI: 10.4103/aca.aca_40_20] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Affiliation(s)
- Habib M R Karim
- Department of Anaesthesiology and Critical Care, All India Institute of Medical Sciences, Raipur, Chhattisgarh, India
| | - Gil Gonçalves
- Department of Pulmonology, Coimbra Hospital and University Centre, Coimbra, Portugal
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Carvalho L, Ferreira T, Frutuoso L, Matos L, Castro T, Rodrigues D, Oliveira V, Gonçalves G, Nora M, Scigliano H. Large mucinous cystic neoplasm of the pancreas during pregnancy: a case report. J Surg Case Rep 2020; 2020:rjaa085. [PMID: 32665837 PMCID: PMC7342093 DOI: 10.1093/jscr/rjaa085] [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] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2020] [Revised: 12/13/2019] [Accepted: 03/19/2020] [Indexed: 12/18/2022] Open
Abstract
Mucinous cystic neoplasms (MCNs) of the pancreas occurring during pregnancy constitute a rare condition requiring special management due to its large size, malignant potential and the risk of fetal growth restriction. The key points to manage MCNs are to perform a correct diagnosis, accurately evaluate the grade of malignant potential in order to establish the right time for pancreatic surgery and to choose the most appropriate fetal mode of delivery. We describe a case of an incidental abdominal mass detected in a third-trimester pregnant woman. At surgery, a huge pancreatic cystic tumour was found and a distal pancreatectomy with splenic preservation was performed. The histopathological analysis revealed an MCN of the pancreas with low-grade dysplasia. To our knowledge, this is the largest pancreatic MCN detected in a pregnant woman reported in the literature and one of the few successfully resected after vaginal delivery.
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Affiliation(s)
- Lúcia Carvalho
- Department of General Surgery, Centro Hospitalar de Entre o Douro e Vouga, Santa Maria da Feira, Portugal
| | - Tiago Ferreira
- Department of General Surgery, Centro Hospitalar de Entre o Douro e Vouga, Santa Maria da Feira, Portugal
| | - Luísa Frutuoso
- Department of General Surgery, Centro Hospitalar de Entre o Douro e Vouga, Santa Maria da Feira, Portugal
| | - Leonor Matos
- Department of General Surgery, Centro Hospitalar de Entre o Douro e Vouga, Santa Maria da Feira, Portugal
| | - Tiago Castro
- Department of General Surgery, Centro Hospitalar de Entre o Douro e Vouga, Santa Maria da Feira, Portugal
| | - Domingos Rodrigues
- Department of General Surgery, Centro Hospitalar de Entre o Douro e Vouga, Santa Maria da Feira, Portugal
| | - Vera Oliveira
- Department of General Surgery, Centro Hospitalar de Entre o Douro e Vouga, Santa Maria da Feira, Portugal
| | - Gil Gonçalves
- Department of General Surgery, Centro Hospitalar de Entre o Douro e Vouga, Santa Maria da Feira, Portugal
| | - Mário Nora
- Department of General Surgery, Centro Hospitalar de Entre o Douro e Vouga, Santa Maria da Feira, Portugal
| | - Horácio Scigliano
- Anatomical Pathology Laboratory Dr. Albino Oliveira (Unilabs), Centro Hospitalar de Entre o Douro e Vouga, Santa Maria da Feira, Portugal
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Gonçalves G, Karim HMR, Esquinas AM. Is intraoperative low tidal volume ventilation worse in patients with preexisting systemic inflammatory response? Our insights to Chugh et al. study. J Anaesthesiol Clin Pharmacol 2020; 36:271-272. [PMID: 33013049 PMCID: PMC7480316 DOI: 10.4103/joacp.joacp_89_20] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 03/12/2020] [Indexed: 11/05/2022] Open
Affiliation(s)
- Gil Gonçalves
- Pulmonology Department, Centro Hospitalar e Universitário de Coimbra, Coimbra, Portugal
| | - Habid M R Karim
- Department of Anesthesiology and Critical Care, All India Institute of Medical Sciences, Raipur, Chhattisgarh, India
| | - Antonio M Esquinas
- Intensive Care and Noninvasive Ventilatory Unit, Hospital Morales Meseguer, Murcia, Spain
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Gonçalves G, Andriolo U, Pinto L, Duarte D. Mapping marine litter with Unmanned Aerial Systems: A showcase comparison among manual image screening and machine learning techniques. Mar Pollut Bull 2020; 155:111158. [PMID: 32310099 DOI: 10.1016/j.marpolbul.2020.111158] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [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: 02/28/2020] [Revised: 04/06/2020] [Accepted: 04/06/2020] [Indexed: 06/11/2023]
Abstract
Recent works have shown the feasibility of Unmanned Aerial Systems (UAS) for monitoring marine pollution. We provide a comparison among techniques to detect and map marine litter objects on an UAS-derived orthophoto of a sandy beach-dune system. Manual image screening technique allowed a detailed description of marine litter categories. Random forest classifier returned the best-automated detection rate (F-score 70%), while convolutional neural network performed slightly worse (F-score 60%) due to a higher number of false positive detections. We show that automatic methods allow faster and more frequent surveys, while still providing a reliable density map of the marine litter load. Image manual screening should be preferred when the characterization of marine litter type and material is required. Our analysis suggests that the use of UAS-derived orthophoto is appropriate to obtain a detailed geolocation of marine litter items, requires much less human effort and allows a wider area coverage.
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Affiliation(s)
- Gil Gonçalves
- University of Coimbra, Department of Mathematics, Faculty of Sciences and Technology, Coimbra, Portugal; INESC Coimbra, Department of Electrical and Computer Engineering, Coimbra, Portugal.
| | - Umberto Andriolo
- INESC Coimbra, Department of Electrical and Computer Engineering, Coimbra, Portugal.
| | - Luís Pinto
- University of Coimbra, CMUC, Department of Mathematics, Faculty of Sciences and Technology, Coimbra, Portugal.
| | - Diogo Duarte
- INESC Coimbra, Department of Electrical and Computer Engineering, Coimbra, Portugal.
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43
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Gonçalves G, Andriolo U, Pinto L, Bessa F. Mapping marine litter using UAS on a beach-dune system: a multidisciplinary approach. Sci Total Environ 2020; 706:135742. [PMID: 31791786 DOI: 10.1016/j.scitotenv.2019.135742] [Citation(s) in RCA: 55] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 11/22/2019] [Accepted: 11/23/2019] [Indexed: 06/10/2023]
Abstract
The amount of marine litter, mainly composed by plastic materials, has become a global environmental issue in coastal environments. Traditional monitoring programs are based on in-situ visual census, which require human effort and are time-demanding. Therefore, it is crucial to implement innovative mapping strategies to improve the environmental monitoring of marine litter on the coast. This work presents a procedure for an automated Unmanned Aerial System (UAS)-based marine litter mapping on a beach-dune system. A multidisciplinary framework, which comprises photogrammetry, geomorphology, machine learning and hydrodynamic modelling, was developed to process a block of UAS images. The work shows how each of these scientific methodologies can be complementary to improve and making more efficient the mapping of marine litter items with UAS on coastal environment. The very high-resolution orthophoto produced from UAS images was automatically screened by random forest machine learning method, in order to characterize the marine litter load on beach and dune areas, distinctively. The marine litter objects were identified with a F-test score of 75% when compared to manual procedure. The location of major marine litter loads within the monitored area was found related to beach slope and water level dynamics on the beach profiles, suggesting that UAS flight deployment and post-processing for beach litter mapping can be optimized based on these environmental parameters. The described UAS-based marine litter detection framework is intended to support scientists, engineers and decision makers aiming at monitoring marine and coastal pollution, with the additional aim of optimizing and automating beach clean-up operations.
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Affiliation(s)
- Gil Gonçalves
- Institute for Systems Engineering and Computers at Coimbra (INESC Coimbra), University of Coimbra, Coimbra, Portugal; Department of Mathematics, University of Coimbra, Coimbra, Portugal.
| | - Umberto Andriolo
- Institute for Systems Engineering and Computers at Coimbra (INESC Coimbra), University of Coimbra, Coimbra, Portugal.
| | - Luís Pinto
- CMUC, Department of Mathematics, University of Coimbra, Coimbra, Portugal.
| | - Filipa Bessa
- MARE - Marine and Environmental Sciences Centre, Department of Life Sciences, Faculty of Science and Technology, University of Coimbra, Coimbra, Portugal
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44
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Vilela C, Silva ACQ, Domingues EM, Gonçalves G, Martins MA, Figueiredo FML, Santos SAO, Freire CSR. Conductive polysaccharides-based proton-exchange membranes for fuel cell applications: The case of bacterial cellulose and fucoidan. Carbohydr Polym 2020; 230:115604. [PMID: 31887959 DOI: 10.1016/j.carbpol.2019.115604] [Citation(s) in RCA: 27] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2019] [Revised: 10/28/2019] [Accepted: 11/09/2019] [Indexed: 01/14/2023]
Abstract
Conductive natural-based separators for application in polymer electrolyte fuel cells (PEFCs) were fabricated by combining a bacterial polysaccharide, i.e. bacterial cellulose (BC), and an algae sulphated polysaccharide, i.e. fucoidan (Fuc). The diffusion of fucoidan aqueous solution containing a natural-based cross-linker, viz. tannic acid, into the wet BC nanofibrous three-dimensional network, followed by thermal cross-linking, originated fully bio-based proton exchange membranes (PEMs). The PEMs present thermal-oxidative stability in the range of 180-200 °C and good dynamic mechanical performance (storage modulus ≥ 460 MPa). Additionally, the BC/Fuc membranes exhibit protonic conductivity that increases with increasing relative humidity (RH), which is a typical feature for numerous water-mediated proton conductors. The traditional Arrhenius-type plots demonstrate a linear behaviour with a maximum protonic conductivity of 1.6 mS cm-1 at 94 °C and 98 % RH. The results showed that these fully bio-based conductive membranes have potential as eco-friendly alternatives to other PEMs for application in PEFCs.
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Affiliation(s)
- Carla Vilela
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal.
| | - Ana C Q Silva
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Eddy M Domingues
- CICECO - Aveiro Institute of Materials, Department of Materials and Ceramic Engineering, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Gil Gonçalves
- Centre for Mechanical Technology and Automation (TEMA), Department of Mechanical Engineering, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Manuel A Martins
- CICECO - Aveiro Institute of Materials, Department of Physics, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Filipe M L Figueiredo
- CICECO - Aveiro Institute of Materials, Department of Materials and Ceramic Engineering, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Sónia A O Santos
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Carmen S R Freire
- CICECO - Aveiro Institute of Materials, Department of Chemistry, University of Aveiro, 3810-193 Aveiro, Portugal
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45
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Pinto SC, Gonçalves G, Sandoval S, López-Periago AM, Borras A, Domingo C, Tobias G, Duarte I, Vicente R, Marques PAAP. Bacterial cellulose/graphene oxide aerogels with enhanced dimensional and thermal stability. Carbohydr Polym 2019; 230:115598. [PMID: 31887938 DOI: 10.1016/j.carbpol.2019.115598] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2019] [Revised: 10/27/2019] [Accepted: 11/09/2019] [Indexed: 12/22/2022]
Abstract
We present a novel method for processing bacterial cellulose/graphene oxide (BC/GO) aerogels with multifunctional properties. The addition of a small amount of dimethyl sulfoxide (DMSO) to the aqueous dispersion of the nanomaterials during the gelification process affected the water freezing temperature of the system and thereby affecting the porous structure of the aerogel obtained after liophilization. The possibility to obtain small and elongated pore with axial orientation allowed a significant improvement of the structural stability of the aerogels. Moreover, the aerogels reduction by thermal treatment with ammonia gas induced crosslinking between the different nanophases, thus given an incremental factor for the mechanical performance of the aerogels under harsh conditions. The resulting aerogels also showed significant improvements in terms of thermal stability and electrical conductivity. These multifunctional BC/GO aerogels present high potential as sustainable and ecological alternative materials for lightweight packaging, filters for atmosphere and water treatment, or energy applications.
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Affiliation(s)
- Susana C Pinto
- TEMA, Mechanical Engineering Department, University of Aveiro, P-3810-193 Aveiro, Portugal
| | - Gil Gonçalves
- TEMA, Mechanical Engineering Department, University of Aveiro, P-3810-193 Aveiro, Portugal.
| | - Stefania Sandoval
- Institut de Ciencia de Materiales de Barcelona (ICMAB-CSIC), Campus UAB, 08193, Bellaterra, Spain
| | - Ana M López-Periago
- Institut de Ciencia de Materiales de Barcelona (ICMAB-CSIC), Campus UAB, 08193, Bellaterra, Spain
| | - Alejandro Borras
- Institut de Ciencia de Materiales de Barcelona (ICMAB-CSIC), Campus UAB, 08193, Bellaterra, Spain
| | - Concepción Domingo
- Institut de Ciencia de Materiales de Barcelona (ICMAB-CSIC), Campus UAB, 08193, Bellaterra, Spain
| | - Gerard Tobias
- Institut de Ciencia de Materiales de Barcelona (ICMAB-CSIC), Campus UAB, 08193, Bellaterra, Spain
| | - Isabel Duarte
- TEMA, Mechanical Engineering Department, University of Aveiro, P-3810-193 Aveiro, Portugal
| | - Romeu Vicente
- RISCO, Civil Engineering Department, University of Aveiro, P-3810-193 Aveiro, Portugal
| | - Paula A A P Marques
- TEMA, Mechanical Engineering Department, University of Aveiro, P-3810-193 Aveiro, Portugal.
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Loureiro S, Gonçalves SF, Gonçalves G, Hortiguela MJ, Rebelo S, Ferro MC, Vila M. Eco-friendly profile of pegylated nano-graphene oxide at different levels of an aquatic trophic chain. Ecotoxicol Environ Saf 2018; 162:192-200. [PMID: 29990731 DOI: 10.1016/j.ecoenv.2018.06.078] [Citation(s) in RCA: 3] [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: 09/28/2017] [Revised: 06/18/2018] [Accepted: 06/25/2018] [Indexed: 06/08/2023]
Abstract
Nanographene oxide (nGO) has been recently proposed as a new antitumoral therapeutic agent, drug delivery carrier and gene transfection vehicle, among others. Treatment is carried out by hyperthermia induced by infrared irradiation. After treatment, the nanosystems will be inevitably excreted and released to the environment. To understand the potential impacts of pegylated nGO (nGO-PEG), three key species from different trophic levels were used: the green micro-algae Raphidocelis subcapitata (growth inhibition test), the cladocera Daphnia magna (acute and chronic tests), and the fish Danio rerio (fish embryo test). Besides a regular standard procedure to assess toxicity, and considering the mode of action of nGO-PEG in cancer treatment, a simultaneous infrared lamp exposure was carried out for D. magna and D. rerio. Additionally, and taking advantage of the phenotypic transparency of D. magna, nGO-PEG was fluorescently tagged to evaluate the potential uptake of nGO-PEG. The R. subcapitata growth inhibition test showed effects during the first 48 h, recovering till the end of the test (96 h). No acute or chronic effects were observed for D. magna, under standard or infrared light exposures although confocal microscope images showed nGO-PEG uptake. Very small percentages of mortality and abnormalities were observed in D. rerio exposed with and without the infrared lamp. Although low hazard may be expected for nGO-PEG in aquatic ecosystems, further studies with species with different life traits should be accomplished, in order to derive more accurate conclusions.
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Affiliation(s)
- Susana Loureiro
- Department of Biology and CESAM, University of Aveiro, 3810-193 Aveiro, Portugal.
| | | | - Gil Gonçalves
- Department of Mechanical Engineering, TEMA-NRG, University of Aveiro, Portugal
| | | | - Sandra Rebelo
- Department of Medical Sciences, Institute of Biomedicine - iBiMED, University of Aveiro, 3810-193 Aveiro, Portugal
| | - Marta Carmona Ferro
- Department of Materials and Ceramic Engineering, CICECO, University of Aveiro, Portugal
| | - Mercedes Vila
- Department of Mechanical Engineering, TEMA-NRG, University of Aveiro, Portugal
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Borrás A, Gonçalves G, Marbán G, Sandoval S, Pinto S, Marques PAAP, Fraile J, Tobias G, López-Periago AM, Domingo C. Preparation and Characterization of Graphene Oxide Aerogels: Exploring the Limits of Supercritical CO2
Fabrication Methods. Chemistry 2018; 24:15903-15911. [DOI: 10.1002/chem.201803368] [Citation(s) in RCA: 11] [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] [Received: 07/02/2018] [Indexed: 12/16/2022]
Affiliation(s)
- Alejandro Borrás
- Instituto de Ciencia de Materiales de Barcelona (ICMAB-CSIC); Campus UAB; 08193 Bellaterra Spain
| | - Gil Gonçalves
- Instituto de Ciencia de Materiales de Barcelona (ICMAB-CSIC); Campus UAB; 08193 Bellaterra Spain
| | - Gregorio Marbán
- Instituto Nacional del Carbón (CSIC); c/ Francisco Pintado Fe 26 33011 Oviedo Spain
| | - Stefania Sandoval
- Instituto de Ciencia de Materiales de Barcelona (ICMAB-CSIC); Campus UAB; 08193 Bellaterra Spain
| | - Susana Pinto
- Mechanical Engineering Department; Centre for Mechanical Technology and Automation (TEMA); University of Aveiro; 310-193 Aveiro Portugal
| | - Paula A. A. P. Marques
- Mechanical Engineering Department; Centre for Mechanical Technology and Automation (TEMA); University of Aveiro; 310-193 Aveiro Portugal
| | - Julio Fraile
- Instituto de Ciencia de Materiales de Barcelona (ICMAB-CSIC); Campus UAB; 08193 Bellaterra Spain
| | - Gerard Tobias
- Instituto de Ciencia de Materiales de Barcelona (ICMAB-CSIC); Campus UAB; 08193 Bellaterra Spain
| | - Ana M. López-Periago
- Instituto de Ciencia de Materiales de Barcelona (ICMAB-CSIC); Campus UAB; 08193 Bellaterra Spain
| | - Concepción Domingo
- Instituto de Ciencia de Materiales de Barcelona (ICMAB-CSIC); Campus UAB; 08193 Bellaterra Spain
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Santos CIM, Mariz IFA, Pinto SN, Gonçalves G, Bdikin I, Marques PAAP, Neves MGPMS, Martinho JMG, Maçôas EMS. Selective two-photon absorption in carbon dots: a piece of the photoluminescence emission puzzle. Nanoscale 2018; 10:12505-12514. [PMID: 29931025 DOI: 10.1039/c8nr03365j] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Carbon nanodots (Cdots) are now emerging as promising nonlinear fluorophores for applications in biological environments. A thorough and systematic approach to the two-photon induced emission of Cdots that could provide design guidelines to control their nonlinear emission properties is still missing. In this work, we address the nonlinear optical spectroscopy of Cdots prepared by controlled chemical cutting of graphene oxide (GO). The two-photon absorption in the 700-1000 nm region and the corresponding emission spectrum are carefully investigated. The highest two-photon absorption cross-section estimated was 130 GM at 720 nm. This value is comparable with the one reported for graphene nanoribbons with push-pull architecture. The emission spectrum depends on the excitation mode. At the same excitation energy, nonlinear excitation results in excitation-wavelength independent emission, while upon linear excitation the emission is excitation-wavelength dependent. The biphotonic interaction seems to be selective towards sp2 clusters bearing electron donor and acceptor groups found in push-pull architectures. Both linear and nonlinear emission can be understood based on the existence of isolated sp2 clusters involved in π-π stacking interactions with clusters in adjacent layers.
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Affiliation(s)
- Carla I M Santos
- CQFM, Centro de Química-Física Molecular, IN-Institute of Nanosciences and Nanotechnology and CQE, Centro de Química Estrutural, Instituto Superior Técnico, 1049-001 Lisboa, Portugal.
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Frade J, Nunes C, Mesquita JR, São José Nascimento M, Gonçalves G. Rubella antibodies in cord blood sera in Portugal: association with maternal age and vaccination status. Epidemiol Infect 2018; 146:600-605. [PMID: 29458448 PMCID: PMC9134545 DOI: 10.1017/s0950268818000237] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2017] [Revised: 01/04/2018] [Accepted: 01/21/2018] [Indexed: 11/06/2022] Open
Abstract
This study evaluated the impact of maternal vaccination against rubella on the levels of specific rubella IgG (rIgG) in 198 newborn cord sera samples. Detailed maternal vaccination data were available. Specific rIgG was measured using a commercial enzyme immunoassay. Most mothers (78.8%) had been vaccinated against rubella at least once in their lives. In 15 (7.6%) cord sera samples, the concentration of specific rIgG was below 11 IU/ml, which was classified as seronegative. Statistical analysis using multiple logistic regression (n = 198) showed that newborns of mothers born between 1986 and 1995, and those born to unvaccinated mothers, were more likely to be seronegative (odds ratio (ORs) 5.2 and 4.9, respectively, adjusted for sex and gestational age). For vaccinated mothers (n = 156), those born between 1986 and 1995 were more likely to have seronegative newborns (OR 11.5 adjusting for sex, gestational age and time since last vaccination). Mothers of the 15 (7.6%) seronegative newborns might have been susceptible to rubella during pregnancy. Checking the vaccination status therefore recommended.
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Affiliation(s)
- J. Frade
- Multidisciplinary Unit for Biomedical Research (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
- Health Research Unit of School of Health Sciences, Polytechnic Institute of Leiria, Campus 2 – Morro do Lena – Alto do Vieiro, Apartado 4137, 2411-901 Leiria, Portugal
| | - C. Nunes
- Public Health Research Centre, National School of Public Health, Universidade NOVA de Lisboa, Avenida Padre Cruz, 1600-560 Lisboa, Portugal
| | - J. R. Mesquita
- Agrarian Superior School, Polytechnic Institute of Viseu, Quinta da Alagoa – Estrada de Nelas, Ranhados, 3500 – 606 Viseu, Portugal
| | - M. São José Nascimento
- Laboratory of Microbiology, Department of Biological Sciences, Faculty of Pharmacy of University of Porto, Rua de Jorge Viterbo Ferreira n. 228, 4050-313 Porto, Portugal
| | - G. Gonçalves
- Multidisciplinary Unit for Biomedical Research (UMIB), Institute of Biomedical Sciences Abel Salazar (ICBAS), University of Porto, Rua Jorge Viterbo Ferreira, 228, 4050-313 Porto, Portugal
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50
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Santos E, Gabriel D, Braga A, Duarte S, Martins Silva A, Matos I, Freijo M, Martins J, Nadais G, Silveira F, Sousa F, Fraga C, Santos Silva R, Lopes C, Gonçalves G, Pinto C, Sousa Braga J, Leite M. MuSK myasthenia gravis and pregnancy. J Neurol Sci 2017. [DOI: 10.1016/j.jns.2017.08.3027] [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: 11/25/2022]
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