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Costa Silva A, Pina-Vaz T, Manso M, Antunes-Lopes T, Pestana M, Rios M, Martins-Silva C, Morgado A, Silva J. Kidney transplantation from donation after brain death versus donation after circulatory death using abdominal normothermic oxygenated circulation: Is there a difference in surgical complications? Eur Urol 2023. [DOI: 10.1016/s0302-2838(23)00457-8] [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: 02/12/2023]
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2
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Ramos P, Mateus A, Vale L, Botelho F, Manso M, Silva S, Pacheco-Figueiredo L, Silva C. Prognostic impact of variant histology in bladder cancer: Would early and aggressive treatment shift the paradigm? EUR UROL SUPPL 2022. [DOI: 10.1016/s2666-1683(22)02356-4] [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: 11/11/2022] Open
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3
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Galvão A, Martins D, Rodrigues A, Manso M, Ferreira J, Silva CM. Green walls with recycled filling media to treat greywater. Sci Total Environ 2022; 842:156748. [PMID: 35716744 DOI: 10.1016/j.scitotenv.2022.156748] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/31/2022] [Revised: 06/07/2022] [Accepted: 06/13/2022] [Indexed: 06/15/2023]
Abstract
The continuous growth of urban areas in the last decades has resulted in an increase in water consumption, contributing to larger volumes of urban and domestic wastewater. Thus, stakeholders have been seeking for efficient alternatives for wastewater management, namely looking for new forms of treatment and reuse. The present work provides new insights on the application of a green wall for greywater treatment, aiming at water reuse and also at contributing to Circular Economy. Two types of recycled materials, crushed tiles and textile fibers, were tested as filling media combined with two plant species. Crushed tiles were mixed with coconut fibers in a 70 %-30 % ratio and textile fibers were used as single media. The tiles+coconut mix with plants performed the best, exhibiting on average removal efficiencies >70 % for Chemical Oxygen Demand (COD) and between 59 %-70 % for Total Suspended Solids (TSS). Fibers systems had on average removal efficiencies around 60 % for COD and 50 % for TSS and clogged at the end of the study. Overall the study demonstrated that green walls for greywater treatment can contribute to circular economy through the use of recycled material as filling media.
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Affiliation(s)
- Ana Galvão
- CERIS, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal.
| | - David Martins
- Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Andreia Rodrigues
- Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Maria Manso
- CERIS, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Joana Ferreira
- Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
| | - Cristina Matos Silva
- CERIS, Instituto Superior Técnico, Universidade de Lisboa, Av. Rovisco Pais, 1049-001 Lisboa, Portugal
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Pang K, Campi R, Omar M, Yuan C, Karavitakis M, Manso M, Arteaga S, Nic An Riogh A, O’Connor E, Sakalis V, Sihra N, Tzelves L, Arlandis S, Bo K, Costantini E, Farag F, Groen J, Lapitan M, Nambiar A, Peyronnet B, Phé V, Van Der Vaart C, Harding C. What are the different diagnostic tests for female Bladder Outlet Obstruction (fBOO)? A systematic review from the European Association of Urology non-neurogenic female LUTS Guidelines Panel. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)00689-8] [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: 11/28/2022]
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Manso M, Pina-Vaz T, Pacheco-Figueiredo L, Antunes-Lopes T, Oliveira G, Cruz F, Dinis-Oliveira P, Silva J. Kidney transplantation from Donation after Cardiocirculatory Death (DCD) after Extracorporeal Membrane Oxygenation (ECMO) – What can we say after 5 years of experience? Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)00719-3] [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: 10/20/2022]
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6
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Manso M, Ramos P, Botelho F, Santos-Silva A, Bulhões C, Cruz F, Pacheco-Figueiredo L. Prevalence of urinary incontinence in portuguese women, associated comorbidities and use of healthcare resources - a population-based study. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)00483-8] [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: 10/20/2022]
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Peyronnet B, Omar M, O’Connor E, Tzelves L, Nic An Riogh A, Manso M, Yuan C, Arlandis S, Bo K, Costantini E, Farag F, Groen J, Nambiar A, Phé V, Van Der Vaart H, N’Dow J, Harding C, Lapitan M. Benefits and harms of conservative, pharmacological, and surgical management options for women with bladder outlet obstruction: A systematic review from the European Association of Urology non-neurogenic female LUTS guidelines panel. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)00690-4] [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: 10/20/2022]
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8
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Manso M, Ramos P, Botelho F, Santos-Silva A, Bulhões C, Cruz F, Pacheco-Figueiredo L. The impact of female urinary incontinence on mental health disease - a population-based study. Eur Urol 2021. [DOI: 10.1016/s0302-2838(21)00484-x] [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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Dengo-Baloi L, Sema-Baltazar C, Chitio J, Luiz N, Manso M, Mboene R, Langa J, Park S. Challenges and opportunities of setting-up a Cholera surveillance Microbiology laboratory in a research-naïve rural setting in Mozambique. Int J Infect Dis 2020. [DOI: 10.1016/j.ijid.2020.09.915] [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: 10/22/2022] Open
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Carrão A, Ribeiro D, Manso M, Oliveira J, Féria L, Ghira M, Maio R. ERAS® Program in a Portuguese Hospital: Results from Elective Colorectal Surgery after One Year of Implementation. ACTA MEDICA PORT 2020; 33:568-575. [PMID: 33160421 DOI: 10.20344/amp.11158] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2018] [Revised: 12/02/2019] [Accepted: 11/20/2019] [Indexed: 11/20/2022]
Abstract
INTRODUCTION The Enhanced Recovery After Surgery® program comprises the implementation of various perioperative measures that reduce surgical stress and ultimately improve patient recovery and outcome. The purpose of this study is to evaluate the first-year compliance and clinical outcomes after implementation of the Enhanced Recovery After Surgery® program in elective colorectal surgery in our hospital. MATERIAL AND METHODS An analysis was performed on the 210 patients who underwent elective colorectal surgery from May 2016 to December 2017. The group of patients that underwent surgery after the protocol implementation (Enhanced Recovery After Surgery® group) was compared to a conventional care control group (pre- Enhanced Recovery After Surgery® group). Differences between the two groups were adjusted using Propensity Score matching. The main outcomes were length of stay, return of bowel function, complications and mortality. The evolution of compliance with Enhanced Recovery After Surgery® principles was also analyzed. RESULTS After propensity score matching, 112 patients were included in the present study: 56 patients formed the pre-Enhanced Recovery After Surgery® group and 56 the Enhanced Recovery After Surgery® group. The overall adherence to the protocol increased from 35.7% to 80.8%. There was a decrease in length of stay, time to return of bowel function and medical complications. DISCUSSION The Enhanced Recovery After Surgery® program is safe and seems to shorten length of stay and improve patient recovery and clinical outcome. CONCLUSION This study showed that the implementation of the Enhanced Recovery After Surgery® program was possible in Hospital Beatriz Ângelo, with a positive impact in the immediate postoperative recovery of colorectal patients.
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Affiliation(s)
- André Carrão
- Serviço de Anestesiologia. Hospital Beatriz Ângelo. Loures. Portugal
| | - Daniel Ribeiro
- Serviço de Anestesiologia. Hospital Beatriz Ângelo. Loures. Portugal
| | - Maria Manso
- Serviço de Anestesiologia. Hospital Beatriz Ângelo. Loures. Portugal
| | - Joana Oliveira
- Serviço de Anestesiologia. Hospital Beatriz Ângelo. Loures. Portugal
| | - Luís Féria
- Serviço de Cirurgia Geral. Hospital Beatriz Ângelo. Loures. Portugal
| | - Miguel Ghira
- Serviço de Anestesiologia. Hospital Beatriz Ângelo. Loures. Portugal
| | - Rui Maio
- Departamento de Cirurgia. Faculdade de Ciências Médicas. Universidade Nova de Lisboa. Lisboa. Serviço de Cirurgia Geral. Departamento de Cirurgia. Hospital Beatriz Ângelo. Loures. Portugal
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Manso M, Pacheco-Figueiredo L, Silva J, Oliveira G, Cruz F, Dinis-Oliveira P. Kidney transplantation from donation after cardiocirculatory death (DCD) after extracorporeal membrane oxygenation (ECMO) – outcomes from a longitudinal assessment with three years of experience. EUR UROL SUPPL 2020. [DOI: 10.1016/s2666-1683(20)33561-8] [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: 11/27/2022] Open
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12
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Cunha C, Fernandes M, Santos M, Ferreira M, Caiado A, Miranda P, Azevedo P, Manso M, Oliveira J, Barreira S, Féria L, Maio R. ERAS® program in the “elderly” - can we still improve even in the extremes? Clin Nutr ESPEN 2019. [DOI: 10.1016/j.clnesp.2019.03.052] [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: 11/26/2022]
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Ruiz-Casado A, Gutiérrez L, Sánchez A, Manso M. Lengua geográfica inducida por inhibidores de la angiogénesis. Rev Clin Esp 2018; 218:501-502. [DOI: 10.1016/j.rce.2018.07.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 07/18/2018] [Accepted: 07/23/2018] [Indexed: 10/28/2022]
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Manso M, Castro-Gomes J, Paulo B, Bentes I, Teixeira CA. Life cycle analysis of a new modular greening system. Sci Total Environ 2018; 627:1146-1153. [PMID: 29426132 DOI: 10.1016/j.scitotenv.2018.01.198] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 01/19/2018] [Accepted: 01/19/2018] [Indexed: 06/08/2023]
Abstract
The construction and use of buildings represent about half of the extracted materials and energy consumption, and around one third of the water consumption and waste produced in the European Union. Therefore it is becoming more important to use sustainable materials that reduce the environmental impacts of construction, by conserving and using resources more efficiently. Green walls can be used as a sustainable strategy to reduce the environmental impact of buildings. The aim of this study is to evaluate the environmental impact of a new modular system for green roofs and green walls (Geogreen) which uses waste and sustainable materials in its composition. A life cycle analysis (LCA) is used to evaluate the long term environmental benefits of this system. The life cycle analysis (LCA) is carried according to ISO 14040/44 using GaBi software and CML 2001 impact category indicators. The adopted functional unit is the square meter of each material required to assemble the Geogreen system. This study also compares the environmental performance of the Geogreen system with other living wall systems and other cladding materials using data from the literature. This LCA study of the Geogreen system became relevant to identify a curing process with a major impact on GWP due to the energy consumed in this process. A change on this process allowed reducing 74% of the overall GWP. After this change it can be noticed that the Geogreen System presents one of the lowest environmental burden when compared to other construction systems.
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Affiliation(s)
- Maria Manso
- C-MADE, Centre of Materials and Building Technologies, Portugal; Department of Civil Engineering and Architecture, University of Beira Interior, Covilhã, Portugal.
| | - João Castro-Gomes
- C-MADE, Centre of Materials and Building Technologies, Portugal; Department of Civil Engineering and Architecture, University of Beira Interior, Covilhã, Portugal.
| | - Bárbara Paulo
- Engineering Department, School of Science and Technology, University of Trás-os-Montes e Alto Douro (UTAD), Portugal
| | - Isabel Bentes
- C-MADE, Centre of Materials and Building Technologies, Portugal; Engineering Department, School of Science and Technology, University of Trás-os-Montes e Alto Douro (UTAD), Portugal
| | - Carlos Afonso Teixeira
- Centre for the Research and Technology of Agro-Environmental and Biological Sciences (CITAB), Universidade de Trás-os-Montes e Alto Douro (UTAD), Portugal
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Manso M, Alexandre B, Antunes-Lopes T, Martins-da-Silva C, Cruz F. Is the adjustable transobturator system ATOMS® useful for the treatment of male urinary incontinence in low to medium volume urological centers? Actas Urol Esp 2018; 42:267-272. [PMID: 29174630 DOI: 10.1016/j.acuro.2017.07.011] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [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: 04/09/2017] [Revised: 07/03/2017] [Accepted: 07/04/2017] [Indexed: 11/17/2022]
Abstract
INTRODUCTION Urinary incontinence (UI) is a complication of radical prostatectomy (RP) and transurethral resection of the prostate (TURP). The gold-standard treatment is the artificial urinary sphincter, however, new treatments have been investigated. OBJECTIVE To examine the outcome of an adjustable transobturator male system (ATOMS®) in men with UI after prostatic surgery in a low to medium volume continence center. MATERIALS AND METHODS Twenty-five men with UI were implanted with ATOMS® system between 2012 and 2014. The most common indication was UI after RP (92%), followed by UI after TURP (8%). Eleven patients (44%) had received adjuvant external beam radiotherapy (RT). Patients were considered to be 'dry' if they stopped wearing pads or needed just one protective pad per day; and improved if the daily number of pads used decreased by at least half. The Incontinence Quality of Life questionnaire (ICIQ-SF) was used, adding a verbal question about the satisfaction of the patient considering the outcome. RESULTS After a mean follow-up of 21.56 months, 64% were dry and 8% revealed a significant improvement. The success of the procedure was negatively correlated with the severity of the previous UI and with previous treatment with RT. Concerning patients satisfaction, 84% of the patients would repeat the procedure. CONCLUSION ATOMS® offers good rates of cure and improvement of UI after prostatic surgery with a reasonable rate of minor complications. The results of this study, performed in a low to medium volume continence center, are comparable to the results achieved in high volume continence centers.
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Affiliation(s)
- M Manso
- Urology Department, Centro Hospitalar São João, Porto, Portugal.
| | - B Alexandre
- Faculdade de Medicina, Universidade do Porto, Porto, Portugal
| | - T Antunes-Lopes
- Urology Department, Centro Hospitalar São João, Porto, Portugal; i3S Institute for Innovation and Health Research, Porto, Portugal
| | - C Martins-da-Silva
- Urology Department, Centro Hospitalar São João, Porto, Portugal; Faculdade de Medicina, Universidade do Porto, Porto, Portugal
| | - F Cruz
- Urology Department, Centro Hospitalar São João, Porto, Portugal; Faculdade de Medicina, Universidade do Porto, Porto, Portugal; i3S Institute for Innovation and Health Research, Porto, Portugal
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Affiliation(s)
- Maria Manso
- Department of Anesthesia; Hospital Beatriz Ângelo-Luz Saúde; Lisbon Portugal
| | - Jacob Schmelz
- Department of Surgical Oncology; MD Anderson Cancer Center; Houston Texas
- McGovern Medical School at UTHealth; Houston Texas
| | - Thomas Aloia
- Department of Surgical Oncology; MD Anderson Cancer Center; Houston Texas
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Guittet C, Manso M, Burton I, Granier LA, Marçon F. A Two-way Randomized Cross-over Pharmacokinetic and Pharmacodynamic Study of an Innovative Oral Solution of Midazolam (ADV6209). Pharm Res 2017; 34:1840-1848. [PMID: 28577272 DOI: 10.1007/s11095-017-2193-4] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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: 03/01/2017] [Accepted: 05/23/2017] [Indexed: 11/29/2022]
Abstract
PURPOSE The objective of this study was to assess the bioavailability and the sedative effect of a single-dose administration of an innovative oral solution of midazolam containing γ-cyclodextrins (ADV6209). METHODS A bioavailability study with a standard two-sequences, two-periods, and crossover design was conducted. Subjects randomly received 15 mg of ADV6209 by oral route followed by 5 mg of the reference drug (midazolam hydrochloride intravenous solution (Hypnovel®, Roche) by intravenous route or vice versa. Blood samples were drawn at different time points to measure midazolam and its metabolite α-hydroxymidazolam concentrations. Non-compartmental pharmacokinetic methods were used to calculate main pharmacokinetic parameters and absolute bioavailability. RESULTS Caucasian healthy subjects (n = 12) were included in the study. ADV6209 had a bioavailability of 39.6%. The oral elimination half-life with ADV6209 was slightly shorter than with the reference i.v. form (2.66 h versus 2.99 h). The sedative effect was observed 27.5 ± 15.5 min after oral administration for a duration of 48.5 ± 35.4 min. Double peak phenomenon was observed in 5 patients. CONCLUSIONS Cyclodextrins have little impact on midazolam oral bioavailability and the pharmacokinetics parameters of midazolam formulation ADV6209 are close to those reported previously.
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Affiliation(s)
| | | | | | | | - Frédéric Marçon
- Groupe de recherche en pharmacotechnie pédiatrique, Pharmacie à Usage Intérieur, Centre Hospitalier Universitaire d'Amiens, Amiens, France.
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Mansell J, Cooke M, Read M, Rudd H, Shiel A, Wilkins K, Manso M. Chitinase 3-like 1 expression by human (MG63) osteoblasts in response to lysophosphatidic acid and 1,25-dihydroxyvitamin D3. Biochimie 2016; 128-129:193-200. [DOI: 10.1016/j.biochi.2016.08.011] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2016] [Accepted: 08/25/2016] [Indexed: 01/05/2023]
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Abstract
Polymer substrates with tailored surface properties are increasingly desired in tissue engineering studies. In this work a procedure was developed to improve the use of a polycaprolactone (PCL) films for these applications. Ion beam treatments of PCL films activated the surface by different modification mechanisms. The PCL activation conditions were studied using several techniques to evaluate the modifications of the films surface. The results obtained from FTIR, X-ray photoelectron spectroscopy and atomic force microscopy indicated that a gradual modification of the composition and microstructure of the films was induced by the process. The modified surfaces induced shifts in Zeta potential vs pH curves and increased the polar component of the surface free energy. The protein adsorption characteristics of the PCL films were monitored by microgravimetric techniques confirming that the ion beam treatment was able to trigger bovine serum albumin adsorption onto the treated PCL surface.
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Affiliation(s)
- M. Manso
- Institute for Health and Consumer Protection, Joint Research Centre TP-203, 21020 Ispra (Va) Italy, ,
| | - A. Valsesia
- Institute for Health and Consumer Protection, Joint Research Centre TP-203, 21020 Ispra (Va) Italy
| | - G. Ceccone
- Institute for Health and Consumer Protection, Joint Research Centre TP-203, 21020 Ispra (Va) Italy
| | - F. Rossi
- Institute for Health and Consumer Protection, Joint Research Centre TP-203, 21020 Ispra (Va) Italy,
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Cardeira AM, Longelin S, Costa S, Candeias A, Carvalho ML, Manso M. Analytical characterization of academic nude paintings by José Veloso Salgado. Spectrochim Acta A Mol Biomol Spectrosc 2016; 153:379-85. [PMID: 26344483 DOI: 10.1016/j.saa.2015.08.043] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2015] [Revised: 06/23/2015] [Accepted: 08/27/2015] [Indexed: 05/23/2023]
Abstract
This case study illustrates the analytical characterization of 12 academic nude paintings by Veloso Salgado, made between 1883 and 1893. The study was done with in situ methods (infrared reflectography and EDXRF) and benchtop equipment (Raman and FTIR microscopes and SEM-EDS). Infrared reflectography revealed underdrawings, painting style, execution method and retouched/restored areas. Analytical techniques allowed the identification of gypsum, lead white, barium white, zinc white, yellow ochre, chrome yellow, zinc yellow, vermilion, synthetic ultramarine blue, cerulean blue, Prussian blue, viridian, green earth, Paris green, red ochre, raw umber and lamp black. These results provide valuable information on Salgado's palette and his artistic production technique and allow the distinction between palettes used in Lisbon and Paris and consequently, technical interchanges between both Academies. Finally, this study intends to start a systematic analytical study of the Faculty of Fine Arts' collection, allowing the characterization of many other authors and their influences for the development of painting methodology in this Academy.
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Affiliation(s)
- A M Cardeira
- Faculdade de Belas-Artes da Universidade de Lisboa, Largo da Academia Nacional de Belas-Artes, 1249-058 Lisboa, Portugal; Laboratório de Instrumentação, Engenharia Biomédica e Física da Radiação (LIBPhys-UNL), Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Monte da Caparica, Portugal
| | - S Longelin
- Laboratório de Instrumentação, Engenharia Biomédica e Física da Radiação (LIBPhys-UNL), Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Monte da Caparica, Portugal
| | - S Costa
- Laboratório José de Figueiredo, Direcção Geral do Património Cultural, Rua das Janelas Verdes 37, 1249-018 Lisboa, Portugal; Laboratório HERCULES e Centro de Química de Évora, Universidade de Évora, Largo Marquês de Marialva 8, 7000 Évora, Portugal
| | - A Candeias
- Laboratório José de Figueiredo, Direcção Geral do Património Cultural, Rua das Janelas Verdes 37, 1249-018 Lisboa, Portugal; Laboratório HERCULES e Centro de Química de Évora, Universidade de Évora, Largo Marquês de Marialva 8, 7000 Évora, Portugal
| | - M L Carvalho
- Laboratório de Instrumentação, Engenharia Biomédica e Física da Radiação (LIBPhys-UNL), Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Monte da Caparica, Portugal
| | - M Manso
- Laboratório de Instrumentação, Engenharia Biomédica e Física da Radiação (LIBPhys-UNL), Departamento de Física, Faculdade de Ciências e Tecnologia, Universidade Nova de Lisboa, 2829-516 Monte da Caparica, Portugal.
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Guerra M, Longelin S, Pessanha S, Manso M, Carvalho ML. Development of a combined portable x-ray fluorescence and Raman spectrometer for in situ analysis. Rev Sci Instrum 2014; 85:063113. [PMID: 24985805 DOI: 10.1063/1.4883188] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
In this work, we have built a portable X-ray fluorescence (XRF) spectrometer in a planar configuration coupled to a Raman head and a digital optical microscope, for in situ analysis. Several geometries for the XRF apparatus and digital microscope are possible in order to overcome spatial constraints and provide better measurement conditions. With this combined spectrometer, we are now able to perform XRF and Raman measurements in the same point without the need for sample collection, which can be crucial when dealing with cultural heritage objects, as well as forensic analysis. We show the capabilities of the spectrometer by measuring several standard reference materials, as well as other samples usually encountered in cultural heritage, geological, as well as biomedical studies.
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Affiliation(s)
- M Guerra
- Departamento de Física da Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Quinta da Torre, 2829-516 Caparica, Portugal
| | - S Longelin
- Centro de Física Atómica da Universidade de Lisboa, Av. Prof. Gama Pinto, 2 1649-003 Lisboa, Portugal
| | - S Pessanha
- Centro de Física Atómica da Universidade de Lisboa, Av. Prof. Gama Pinto, 2 1649-003 Lisboa, Portugal
| | - M Manso
- Centro de Física Atómica da Universidade de Lisboa, Av. Prof. Gama Pinto, 2 1649-003 Lisboa, Portugal
| | - M L Carvalho
- Departamento de Física da Faculdade de Ciências e Tecnologia da Universidade Nova de Lisboa, Quinta da Torre, 2829-516 Caparica, Portugal
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Silva A, Varela P, Meneses L, Manso M. Novel mono-static arrangement of the ASDEX Upgrade high field side reflectometers compatible with electron cyclotron resonance heating stray radiation. Rev Sci Instrum 2012; 83:10E317. [PMID: 23130802 DOI: 10.1063/1.4732804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
The ASDEX Upgrade frequency modulated continuous wave broadband reflectometer system uses a mono-static antenna configuration with in-vessel hog-horns and 3 dB directional couplers. The operation of the new electron cyclotron resonance heating (ECRH) launcher and the start of collective Thomson scattering experiments caused several events where the fragile dummy loads inside the high field side directional couplers were damaged, due to excessive power resulting from the ECRH stray fields. In this paper, we present a non-conventional application of the existing three-port directional coupler that hardens the system to the ECRH stray fields and at the same time generates the necessary reference signal. Electromagnetic simulations and laboratory tests were performed to validate the proposed solution and are compared with the in-vessel calibration tests.
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Affiliation(s)
- A Silva
- Associação EURATOM/IST, Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade Técnica de Lisboa, 1049-001 Lisboa, Portugal.
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Abstract
Despite the fact that density profile measurements using X-mode lower cut-off reflectometry are foreseen to be used on ITER, little or no experience is available within the reflectometry community and to our knowledge no results on this subject have been published so far. In ASDEX Upgrade the multichannel broadband reflectometer is equipped with both O- and X-mode channels. While X-mode operation was designed for upper cut-off reflection, it is observed that for both high magnetic field and high density discharges the lower cut-off becomes accessible. Here we present reflectometry measurements obtained in ASDEX Upgrade using X-mode lower cut-off and compare both the resulting group delay and density profile with O-mode measurements performed simultaneously over the same plasma region. The possible use of this comparison to provide estimates of the magnetic field is briefly discussed.
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Affiliation(s)
- P Varela
- Associação EURATOM/IST, Instituto de Plasmas e Fusão Nuclear, Instituto Superior Técnico, Universidade Técnica de Lisboa, 1049-001 Lisboa, Portugal.
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24
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Manso M, Rossini P, Malerba I, Valsesia A, Gribaldo L, Ceccone G, Rossi F. Combination of ion beam stabilisation, plasma etching and plasma deposition for the development of tissue engineering micropatterned supports. Journal of Biomaterials Science, Polymer Edition 2012; 15:161-72. [PMID: 15109095 DOI: 10.1163/156856204322793557] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
The performance of biomedical assays at both molecular and cellular level depends greatly on the ability to design new polymer surfaces. Patterns can be created by using materials with contrasted surface properties. In this work we describe in detail the preparation of micropatterned surfaces to be used as tissue engineering supports. Poly(ethylene glycol) (PEG) was used as the 'anti-fouling' polymer in opposition to functional regions covered by acrylic acid (AAc). Since spin-casted PEG films are unstable, ion beam stabilization (IBS) treatment was applied in order to render it insoluble. On the other hand, AAc films were deposited by low-power plasma chemical vapour deposition. Chemical properties of both polymers were monitored by Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy while topographic features were followed by atomic force microscopy. Finally, a micropattern was produced by using a mask, which isolated the IBS-PEG from the AAc-deposited regions. Endothelial cells cultured on the surface were observed to follow the micropatterns. In fact, for a certain surface density it was observed that the cells present tensile or compressive stresses when forced to remain in the anti-fouling or the functionalised regions, respectively.
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Affiliation(s)
- M Manso
- European Commission, Joint Research Centre, Institutefor Health and Consumer Protection (IHCP-JRC TP-203), Via Enrico Fermi, 21020 Ispra (Va), Italy.
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Santos J, Guimarais L, Manso M. Real-time reflectometry measurement validation in H-mode regimes for plasma position control. Rev Sci Instrum 2010; 81:10D926. [PMID: 21061481 DOI: 10.1063/1.3499640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
It has been shown that in H-mode regimes, reflectometry electron density profiles and an estimate for the density at the separatrix can be jointly used to track the separatrix within the precision required for plasma position control on ITER. We present a method to automatically remove, from the position estimation procedure, measurements performed during collapse and recovery phases of edge localized modes (ELMs). Based on the rejection mechanism, the method also produces an estimate confidence value to be fed to the position feedback controller. Preliminary results show that the method improves the real-time experimental separatrix tracking capabilities and has the potential to eliminate the need for an external online source of ELM event signaling during control feedback operation.
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Affiliation(s)
- J Santos
- Associação EURATOM/IST, Instituto de Plasmas e Fusão Nuclear—Laboratório Associado, Instituto Superior Técnico, 1049-001 Lisboa, Portugal
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26
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Recio-Sánchez G, Manso M, Torres-Costa V, Gallach D, Martín-Palma RJ. Porous Silicon Devices for the Electrical Biosensing of Escherichia Coli. ACTA ACUST UNITED AC 2010. [DOI: 10.1166/sl.2010.1282] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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27
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Manso M, Pessanha S, Figueira F, Valadas S, Guilherme A, Afonso M, Rocha AC, Oliveira MJ, Ribeiro I, Carvalho ML. Characterisation of foxing stains in eighteenth to nineteenth century drawings using non-destructive techniques. Anal Bioanal Chem 2009; 395:2029-36. [DOI: 10.1007/s00216-009-3142-9] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2009] [Revised: 09/04/2009] [Accepted: 09/08/2009] [Indexed: 11/30/2022]
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28
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Pessanha S, Manso M, Guilherme A, Costa M, Carvalho ML. Investigation of historical documents for forensic purposes by x-ray fluorescence spectrometry. SURF INTERFACE ANAL 2009. [DOI: 10.1002/sia.3085] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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29
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Eilstein J, Meunier PA, Manso M, Pachot J, Luu-The V, Labrie F, Meunier JR, Leclaire J, Duché D. CYP450 characterization of the reconstructed human epidermis Episkin™ involved in xenobiotic metabolism. Toxicol Lett 2008. [DOI: 10.1016/j.toxlet.2008.06.480] [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: 11/26/2022]
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Cuevas G, Martinez MA, Velazquez M, Ruiz J, Manso M. Splitting of the middle layer of LPW SAFNWC/MSG satellite product in order to improve the monitoring of pre-convective environments. Adv Sci Res 2008. [DOI: 10.5194/asr-2-71-2008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022] Open
Abstract
Abstract. Seven of the infrared channels from the Spinning Enhanced Visible and Infrared Imagery (SEVIRI) instrument, on board the Meteosat Second Generation (MSG), are used to retrieve Layer Precipitable Water (LPW) and Stability Analysis Imagery (SAI) in the SAFNWC framework. Both products are retrieved using a statistical retrieval based on neural networks; they are routinely generated every fifteen minutes at a satellite horizontal resolution of 3 km in NADIR only in cloud-free areas. Many factors are involved in the development of severe weather and these parameters are only some of the indicators. However, due to the high resolution of these products, the use of them in conjunction with satellite and radar images can help to identify mesoscale features related to convection. The MSG moisture and parcel instability time trend fields are especially useful during the period previous to convection. Once the outbreak of convection occurs, the products calculated in the clear air pixels surrounding the convective system can give us hints to anticipate its evolution. SAFNWC LPW and SAI were analyzed for a severe weather event during August 2004. A thunderstorm over Teruel (Spain) produced intense precipitation and hail; a tornado developed while this thunderstorm was moving towards SE. The pre-convective parcel potential buoyancy and moisture SAFNWC products changed in a way that was consistent with the observed intense convective activity. In previous studies, the atmospheric moisture in medium levels, which has been proven to be relevant in some cases, was represented by only one level parameter (ML: middle layer LPW). However, it was observed that this layer is too thick to do an adequate analysis of moisture available for convection. Hence, an improvement on the LPW algorithm has been carried out by splitting the middle layer into two new sub-layers (approximately separated at 700 hPa) and training two new neural networks. The impact of monitoring moisture in the new sub-layers separately in this severe weather event has been tested, and the improvements achieved have been evaluated.
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Manso M, Navas CR, Gilliland D, Ruiz PG, Rossi F. Cellular response to oxygen containing biomedical polymers modified by Ar and He implantation. Acta Biomater 2007; 3:735-43. [PMID: 17398171 DOI: 10.1016/j.actbio.2007.02.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2006] [Revised: 12/26/2006] [Accepted: 02/07/2007] [Indexed: 11/19/2022]
Abstract
Ion beam modification is an attractive way to adapt the response of a biopolymer surface with the view to modifying cellular processes. In this work we performed Ar and He implantations into three oxygen-containing biomedical polymers: polycaprolactone (PCL), poly(ethylene glycol) (PEG) and poly(methyl methacrylate) (PMMA). An ion energy of 25keV was selected on the basis of singularities observed in simulated implantations. The implantations were carried out with fluences of 5x10(13) cm(-2) considering also the ion current density as a source of differentiated damage. The modification of the polymer structure and composition was assayed by Fourier transform infrared spectroscopy, which confirmed the selectivity of the ion current density in producing polymer film damage. Biomedical assays denoted lack of structural stability on the PMMA surfaces. Surface analysis of proteins adsorbed from fetal bovine serum on ion-beam-modified PEG were realized by quartz-crystal microbalance with dissipation, which supported the film stabilization and anti-fouling behaviour of the films. On the other hand, protein adsorption studies on micropatterned PCL surfaces were performed by time-of-flight secondary ion mass spectroscopy and revealed a clear enhancement of protein immobilization in ion-beam-modified areas. The response of human mesenchymal stem cells to the surfaces was observed to depend on the biopolymer characteristics, showing adhesion inhibition onto He-modified PEG and specially enhanced colonization onto He-irradiated PCL.
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Affiliation(s)
- M Manso
- Departamento de Física Aplicada, Universidad Autónoma de Madrid, 28049 Madrid, Spain
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32
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Manso M, Rodriguez A, Paul A, Barrero J, Rossi F. Plasma functionalization, surface characterization and protein retention of multiple-sized polymer beads. SURF INTERFACE ANAL 2006. [DOI: 10.1002/sia.2130] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Manso M, Valsesia A, Lejeune M, Gilliland D, Ceccone G, Rossi F. Tailoring surface properties of biomedical polymers by implantation of Ar and He ions. Acta Biomater 2005; 1:431-40. [PMID: 16701824 DOI: 10.1016/j.actbio.2005.03.003] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/22/2004] [Revised: 02/21/2005] [Accepted: 03/21/2005] [Indexed: 10/25/2022]
Abstract
Ion implantation at 25 and 100 keV has been used as a tool for the modification of the surface properties of two biomedical polymers. The modulation induced by the different energy dispersion mechanisms of Ar and He have allowed satisfactory modifications for both the activation of the surfaces of chemically functional polycaprolactone (PCL) and the stabilization of anti-fouling poly(ethylene glycol) (PEG). In both cases the implantations have been performed at doses of 10(14) cm(-2) by taking into account the effect of different current densities, which are shown to distinctly influence the fragmentation-crosslinking of the target polymers. The resultant films were characterized by Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, time of flight secondary ion mass spectroscopy and atomic force microscopy. Both shifts in zeta potential versus pH curves and the alteration of the polar components of the surface free energy (contact angle measurements) were correlated with the composition analysis. The response of the modified surfaces towards biomolecular interaction is demonstrated by the induction of preferential adsorption on irradiated PCL and the inhibited adsorption onto implanted PEG regions for selected oligopeptides and proteins.
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Affiliation(s)
- M Manso
- Institute for Health and Consumer Protection, Joint Research Centre TP-203, Ispra (Va), Italy.
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34
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Satriano C, Manso M, Gambino GL, Rossi F, Marletta G. Adsorption of a cell-adhesive oligopeptide on polymer surfaces irradiated by ion beams. Biomed Mater Eng 2005; 15:87-99. [PMID: 15623933] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/01/2023]
Abstract
The adsorption behavior of H-Arg-Gly-Asp-OH (RGD) oligopeptide on ion-irradiated polymer surfaces has been studied. The RGD-incubated surfaces of poly(ethylene terephtalate) (PET) and poly(hydroxymethylsiloxane) (PHMS) thin films, before and after irradiation with 50 keV Ar+ to 1x10(15) ions/cm2, were investigated by X-Ray Photoelectron Spectroscopy and Atomic Force Microscopy. It was found that no significant adsorption occurs on PET, while a measurable amount of RGD is preferentially adsorbed onto irradiated PHMS surfaces. The evaluated surface coverage was found to range between 5 and 12%. In situ adsorption measurements performed by using the Quartz Crystal Microbalance with Dissipation monitoring technique showed that the irradiation induced remarkable changes of mass uptake with respect to the unirradiated surfaces, mostly attributed to the change in the water adsorption capability of the irradiated surfaces. The adsorption results are discussed in terms of the ion-induced changes on the morphology, chemical structure and composition, surface free energy and surface charge.
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Affiliation(s)
- C Satriano
- Laboratory for Molecular Surfaces and Nanotechnology (LAMSUN), Department of Chemical Sciences, University of Catania, V. le Andrea Doria 6, 95125 Catania, Italy
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Satriano C, Spinella N, Manso M, Licciardello A, Rossi F, Marletta G. Ion beam induced nanometric structure and oligopeptide adsorption on patterned polymer surfaces. Materials Science and Engineering: C 2003. [DOI: 10.1016/j.msec.2003.09.095] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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36
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Manso M, Langlet M, Fernández M, Vázquez L, Martı́nez-Duart J. Surface and interface analysis of hydroxyapatite/TiO2 biocompatible structures. Materials Science and Engineering: C 2003. [DOI: 10.1016/s0928-4931(02)00320-x] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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37
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Manso M, Ogueta S, Herrero-Fernández P, Vázquez L, Langlet M, García-Ruiz JP. Biological evaluation of aerosol-gel-derived hydroxyapatite coatings with human mesenchymal stem cells. Biomaterials 2002; 23:3985-90. [PMID: 12162331 DOI: 10.1016/s0142-9612(02)00142-4] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.1] [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: 10/27/2022]
Abstract
The bioactive properties of hydroxyapatite (HAP) are evaluated for applications involving the enhancement of biocompatible prostheses by seeding human pluripotent mesenchymal stem cells (MSCs). The in vitro response of human MSCs seeded on aerosol-gel HAP coatings is addressed in this work. The processing of the HAP coatings has been carried out by the aerosol-gel technique using calcium nitrate and triethylphosphate as starting precursors. The characterization of the coatings was carried out by using transmission electron microscopy, Fourier transform infrared spectroscopy, scanning electron microscopy, energy disperse X-ray microanalysis, and surface force microscopy, which confirmed the high performance of the HAP coatings. In vitro tests show that human MSCs adhere to aerosol-gel-derived HAP coatings and show proliferation signals on these surfaces.
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Affiliation(s)
- M Manso
- Departamento de Física Aplicada, Universidad Autónoma de Madrid, Spain.
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38
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Abstract
Highly porous aerosol-gel derived hydroxyapatite (HAP) coatings have been prepared from calcium nitrate and phosphoric acid based sols. Precursor solutions were prepared by filtering the suspension formed during the ultrasonic slurring of the reactants mixture. The coatings deposited on Si wafers were studied after sintering at different temperatures by using Fourier transform infrared spectroscopy, X-ray diffraction, energy disperse microanalysis and scanning electron microscopy. The composition, structure and morphology of the coatings sintered at 650 degrees C were found to fit highly porous HAP. That is considered of great relevance since the deposition parameters are compatible with the processing of bioactive coatings on load bearing metallic substrates.
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Affiliation(s)
- M Manso
- Departamento Física Aplicada C-XII, Universidad Autónoma de Madrid, 28049 Madrid, Spain.
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Abstract
In this work, we describe a technique for the in-situ observation of cells adhered on opaque biomaterial surfaces. The visualisation of the morphology of cells adhered onto a surface allows to derive nuclear apoptotic signs or even the existence of organisation between groups of these cells. The technique is based on the use of an auto-immune reaction combined with a fluorescent agent that allows a direct inspection of the cell behaviour. The versatility of the technique is demonstrated by presenting several examples with different cultured cells (human chondrosarcome cells (CSRCs) and pluripotential mesenchymal stem cells (MSCs) from bone marrow) seeded over two different Ti-based surfaces (TiO(2) and TiN, respectively). These in-vitro observations are compared with the behaviour of the same cells on bare TiAlV alloy. From our results it is concluded that both TiO(2) and TiN surfaces show enhanced biological responses.
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Affiliation(s)
- M Manso
- Dpto. Física Aplicada C-XII, Universidad Autónoma de Madrid, 28049 Madrid, Spain.
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40
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Abstract
Hydroxyapatite films have been grown in this work by an electrodeposition method involving both physical and chemical processes and presenting several differences with respect to other reported works. Description of the coating formation is based on the evolution of current through the sample placed as positive electrode in the basic electrolyte. The characterisation of hydroxyapatite films is of special importance since the bioactive properties related to HAP have been directly identified with its specific composition (Ca/P ratio) and crystalline structure. This characterisation has been traditionally fulfilled by the use of XRD, FTIR and SEM. Results of a further characterisation of the coatings by TEM and SFM, additional to the analysis by XRD, FTIR and SEM, are presented. Interpretation and comparison of our results with those obtained by other electrodeposition methods lead to arguments in favour of a deposition produced directly from ionic species.
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Affiliation(s)
- M Manso
- Departamento de Física Aplicada, Universidad Autónoma de Madrid, Spain.
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Grossmann V, Santos J, Varela P, Tavares M, Manso M. New developments for the control and data acquisition system of the reflectometry on ASDEX-Upgrade. Fusion Engineering and Design 2000. [DOI: 10.1016/s0920-3796(00)00120-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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42
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Santos J, Nunes F, Manso M, Varela P. A neural network approach to evaluate density profiles from reflectometry in ASDEX Upgrade discharges with internal transport barriers. Fusion Engineering and Design 2000. [DOI: 10.1016/s0920-3796(00)00143-5] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Silva A, Cupido L, Loureiro C, Vergamota S, Varela P, Santos J, Manso M, Serra F, Meneses L, Tavares M, Nunes I, Kurzan B, Suttrop W, Grossman V. New developments of the ASDEX Upgrade tokamak microwave reflectometer. Fusion Engineering and Design 1999. [DOI: 10.1016/s0920-3796(99)00039-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Nunes F, Manso M, Nunes I, Santos J, Silva A, Varela P. On the application of the Wigner–Ville distribution to broadband reflectometry. Fusion Engineering and Design 1999. [DOI: 10.1016/s0920-3796(98)00416-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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45
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de Dios I, San Romàn JI, Manso M, Calvo JJ, López MA. Glucocorticoids effects on exocrine pancreatic secretion in caerulein-induced acute pancreatitis in the rat. Arch Int Physiol Biochim 1990; 98:361-9. [PMID: 1705775 DOI: 10.3109/13813459009113998] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
The present work reports on exocrine pancreatic secretion in control rats, adrenalectomized rats and hydrocortisone-treated (10 mg/Kg/d) rats during 7 days, under normal conditions and after induction of acute pancreatitis with caerulein (20 micrograms/Kg) by 4 subcutaneous injections at hourly intervals. Pancreatic secretion was seen to be affected by the procedure of adrenalectomy, which led to a marked reduction in the secretion of proteins and amylase with respect to control values. This was probably due to the decrease occurring in the zymogen granules in the acinar cells of the exocrine pancreas, a phenomenon which also led to a decrease in pancreatic weight observed in these animals. Treatment with hydrocortisone induced a decrease in the secretion of proteins and amylase, as well as an increase in pancreatic weight. This agrees with the accepted hypothesis that large amounts glucocorticoids stimulate the synthesis and storage of proteins in the exocrine pancreas, reducing the secretory phase. The administration of high doses of caerulein under these conditions led to acute pancreatitis in the three groups of animals. This was paralleled by a dramatic decrease in protein and amylase secretion and by severe interstitial edema of the pancreas and by increases in serum amylase values. In the case of the animals treated previously with hydrocortisone, the latter were tripled with respect to the control animals. The conclusion is offered that since the storage of enzyme proteins is governed by glucocorticoids, which furthermore increase the sensitivity of the acinar cells to stimulation by secretagogues, the administration of these substances during the development of pancreatic lesions such as acute pancreatitis is highly compromising to the organism.
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Affiliation(s)
- I de Dios
- Departamento de Fisiología y Farmacología, Facultad de Biología, Universidad de Salamanca, Spain
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Manso M, De Dios I, Garcia A, Calvo JJ, Lopez MA. Influence of glucocorticoids on the secretion of pancreatic juice in the rat. Arch Int Physiol Biochim 1988; 96:81-7. [PMID: 2460061] [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] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
The influence of adrenalectomy and hydrocortisone treatment on the exocrine pancreatic secretion has been studied in anaesthetized rats. In the adrenalectomized animals Na+ administered in the saline solution provided for drinking was able to maintain standard sodium levels in serum. In these animals an increase of Na+ secretion in pancreatic juice was observed. Furthermore, the osmotic effect created by the increase in Na+ would account for the increase in pancreatic flow. In these adrenalectomized rats, an increase in K+ output is observed, which can be explained by the high K+ concentrations in serum. Likewise adrenalectomy decreased pancreatic enzyme secretion and produced a loss in weight of the organ that is accounted for by a lack of glucocorticoids. Hydrocortisone administration did not affect neither the secretion nor the weight of the pancreas of the control rats but the hormone proved to be effective in adrenalectomized rats producing a pancreatic secretion close to normal, balancing the secretory rate of water, Na+ and K+, completely restoring total protein secretion and the weight of the pancreas but amylase secretion in part only. It is therefore concluded that the weight of the pancreas and its exocrine secretion are clearly influenced by adrenalectomy and by substitution therapy with hydrocortisone. The administration of this hormone (25 mg.kg-1.day-1 along 6 days) did not affect intact animals.
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Affiliation(s)
- M Manso
- Departamento de Fisiología y Farmacología, Facultad de Biología, Universidad de Salamanca, Spain
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47
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Calvo JJ, de Dios I, Manso M. Ox spleen ferritin: an isoelectrofocusing and crossed immunoelectrofocusing study. Rev Esp Fisiol 1986; 42:335-9. [PMID: 3797779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Ox spleen ferritin was purified and its purity checked by two-dimensional immunoelectrophoresis and polyacrylamide plate electrophoresis. Microheterogeneity was shown with a preparation of purified ferritin by isoelectric focusing. The protein was separated into at least 6 fractions; two large fractions in the 4.50-4.55 pH range and another 4 in the 4.65-4.80 interval. Microheterogeneity was confirmed in purified preparations by crossed immunoelectrofocusing. Seven fractions were observed, the most acid ones (4.50-4.55) also being the most abundant. In the crossed IEF procedure, exactness in the isoelectrophoretic separation time is important in that excessive time may impair the resolution potential.
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De Dios I, Manso M, Leon V, Lopez Borrasca A. Separation of human lymphocyte subclasses by rosettes with latex-lectin particles. Biochem Med Metab Biol 1986; 35:12-7. [PMID: 3490859 DOI: 10.1016/0885-4505(86)90053-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The specificity and affinity of eight lectins (concanavalin A, L. culinaris, P. sativum, phytohemagglutinin P, D. biflorus, soybean agglutinin, T. purpureus, and T. vulgaris) to B, T, T gamma, and T mu lymphocytes from the blood of normal subjects were determined. Lectins attached to latex particles were used to evaluate the binding of each lectin to individual cells. The rosette percentage found in each lymphocyte population expresses the specificity index and the specific sugar concentrations needed to decrease the rosette percentage by 50% is taken as the affinity index. B Lymphocytes showed a major subclass, with respect to T lymphocytes, with receptors for WGA, SBA, D. biflorus, L. culinaris, and P. sativum lectins. In contrast, T lymphocytes exhibit a greater number of cells with specific receptors for Con A, T. purpureus, and PHA lectins than B lymphocytes, the T gamma subpopulation being responsible for the specificity of the first two lectins and the T mu subpopulation for the PHA lectin.
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Manso M, de Dios I, Alberca I, Vicente V. Detection of anomalies in cell-surface carbohydrates on thrombasthenic platelets using 125I-labeled lectins. Blut 1986; 52:91-7. [PMID: 3633202 DOI: 10.1007/bf00321071] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
The composition of carbohydrates on the surface of platelets from a patient with Glanzmann's thrombasthenia and from seven normal donors were determined and compared. To this end, binding studies were performed using nine different purified 125I-labeled lectins; Concanavalin A, P-Phytohaemagglutinin, Wheat Germ Agglutinin, Dolichos biflorus, Pisum sativum, Ricinus communis II Agglutinin, Tetragonolobus purpureus, Lens culinaris and Soybean Agglutinin. These studies show that thrombasthenic platelets bear significantly decreased numbers of receptors for Concanavalin A and Lens culinaris, both with a specificity for D-mannose, and Ricinus communis II, with specificity for D-galactose. There were no detectable differences in the numbers of other lectin receptors. These results provide further evidence of molecular defects in thrombasthenic platelets. Moreover, the use of 125I-labeled lectins, as shown here, provides a fast and reliable technique for identifying abnormalities in the carbohydrate composition on the surface of platelets in various thrombopathies.
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de Dios I, Manso M, Martín M, López-Borrasca A. [Comparative analysis of membrane glycoproteins of normal and chronic lymphatic leukemia B lymphocytes by lectins]. Rev Esp Fisiol 1985; 41:211-6. [PMID: 3875881] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Eight plant lectins were used to investigate membrane alterations in lymphocytes from patients with chronic lymphocytic leukemia (CLL). By rosetting with lectins attached to latex particles, the cell percentages with the abundance of each lectin receptor were compared in B normal and leukemic lymphocytes. Comparing these data with the number of lectin molecules bound to each cell and the affinity, which are values calculated with 125I-labeled lectins, it was possible to deduce differences in the composition of glycoproteins in B normal and B-CLL lymphocytes membrane. Compared to B normal, B-CLL lymphocytes had fewer receptors for WGA and more for Lens culinaris, SBA and Tetragonolobus purpureus lectins. Receptors for Concanavalin A, Pisum sativum, PHA and Tetragonolobus purpureus showed a higher affinity with B normal lymphocytes, while the other lectins assayed showed more affinity with B-CLL lymphocytes. So, it is possible to establish a comparative analysis about the plasma membrane glycoproteins in the B normal and CLL lymphocytes by lectin binding studies.
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