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Ultrasonication of insulin-loaded microgel particles produced by internal gelat...
Santos, Ana C.; Cunha, Joana; Veiga, F.; Cordeiro-da-Silva, A.; Ribeiro, Antonio J.Alginate-dextran sulfate (ADS) microgel has been used to protect insulin from gastrointestinal attack and as a carrier to promote insulin permeation through intestinal epithelium. The throughput of ADS submicron particles generation by emulsification/internal gelation is limited by its wide size distribution. The aim of this work was to study the recovery protocol influence on ADS particles through the determi...
Efeito fungicida dos óleos essenciais de Schinus molle L. e Schinus terebinthif...
Santos,Ana C. Atti dos; Rossato,Marcelo; Serafini,Luciana Atti; Bueno,Marina; Crippa,Liziane B.; Sartori,Valdirene C.; Dellacassa,Eduardo; Moyna,PatrickUma das alternativas para reduzir o uso de agrotóxicos pode ser a utilização de óleos essenciais para o controle de doenças e pragas que afetam a produção agrícola. O objetivo do presente estudo foi verificar o efeito fungicida dos óleos essenciais de Schinus molle L. e Schinus terebinthifolius Raddi, espécies nativas amplamente distribuídas na região. Os óleos foram extraídos por hidrodestilação e analisados p...
Are species-area relationships from entire archipelagos congruent with those of...
Santos, Ana C.; Whittaker, Robert J.; Triantis, Kostas A.; Borges, Paulo A. V.; Jones, Owen R.; Quicke, Donald L. J.; Hortal, JoaquínCopyright © 2010 Blackwell Publishing Ltd. ; AIM To establish the extent to which archipelagos follow the same species–area relationship as their constituent islands and to explore the factors that may explain departures from the relationship. LOCATION Thirty-eight archipelagos distributed worldwide. METHODS We used ninety-seven published datasets to create island species–area relationships (ISARs) using the A...
Quality of two tomato Cultivars grown under different agronomical conditions
Agulheiro-Santos, Ana C.; Bernalte, Maria J.; Louzano, Mercedes; Machado, Francisco; Sinogas, AnaProceedings of the International Conference “Environmentally friendly and safe technologies for quality of fruit and vegetables”, held in Universidade do Algarve, Faro, Portugal, on January 14-16, 2009. This Conference was a join activity with COST Action 924. ; Quality of two tomato cultivars (‘Dundee’ and ‘V1’) produced in greenhouses, under different agronomical conditions during a season, was studied. The ...
Binary Mutual Diffusion Coefficients of Isoniazid Aqueous Solutions at (298.15 ...
Ribeiro, Ana C. F.; Santos, Ana C. G.; Lobo, Victor M. M.; Veiga, Francisco J. B.; Cabral, Ana M. T. D. P. V.; Esteso, Miguel A.; Ortona, OrnellaBinary mutual diffusion coefficients measured by the Taylor dispersion method in two different laboratories (University of Naples, Federico II, Italy, and University of Coimbra, Portugal) are reported for aqueous solutions of isoniazid at concentrations from (0.000 to 0.100) mol·dm−3 and at two temperatures (298.15 and 310.15) K. The hydrodynamic radii for the isoniazid in aqueous solution are calculated from t...
In vivo MRI assessment of a novel GdIII-based contrast agent designed for high ...
Sousa, Paulo Loureiro de; Livramento, João Bruno; Helm, Lothar; Merbach, André E.; Même, William; Doan, Bich-Thuy; Beloeil, Jean-ClaudeGd3L is a trinuclear Gd3+ complex of intermediate size, designed for contrast agent applications in high field magnetic resonance imaging (H12L is based on a trimethylbenzene core bearing three methylene-diethylenetriamine- N,N,NPrimeNPrime-tetraacetate moieties). Thanks to its appropriate size, the presence of two inner sphere water molecules and a fast water exchange, Gd3L has remarkable proton relaxivities a...
Gd(III)-EPTPAC16, a new self-assembling potential liver MRI contrast agent: in ...
Torres, Suzana; Prata, Maria I. M.; Santos, Ana C.; André, João P.; Martins, José A.; Helm, Lothar; Tóth, Éva; García-Martín, Maria L.The recently reported amphiphilic chelate, [Gd(EPTPAC16)(H2O)]2-, forms supramolecular aggregates in aqueous solution by self-assembly of the monomers with a relaxometrically determined critical micellar concentration (CMC) of 0.34 mM. The effect of sonication on the aggregate size was characterized by dynamic light scattering and relaxometry, indicating the presence of premicellar aggregates and an overall dec...
Macronutrient and ethanol intake in Portuguese adults.
Oliveira, Andreia; Lopes, Carla; Santos, Ana C; Ramos, Elisabete; Severo, Milton; Barros, HenriqueThe evaluation of nutrient intake is essential for the definition of health policies and as guidance for the establishment of factors, which could be involved in the occurrence of disease. The study aims to describe energy, nutrients and ethanol intake and the prevalence of inadequate macronutrient intake of Portuguese adults, by gender, age and education. We collected information on 2389 adults (61.6% of women...
Sensibilidade de Xanthomonas axonopodis pv. citri ao cobre e mancozeb
Meneguim,Luciana; Rinaldi,Dirlene A.M.F.; Santos,Ana C.A.; Rodrigues,Ludmila S.; Silva,Michele R.L.; Canteri,Marcelo G.; Leite Júnior,Rui P.O cancro cítrico, causado por Xanthomonas axonopodis pv. citri (Xac) é uma das principais doenças na produção de citros em diversas regiões do mundo. A aplicação de produtos químicos com ação bactericida é uma das principais medidas adotadas para o controle dessa doença. O objetivo deste estudo foi determinar a sensibilidade de isolados Xac ao cobre, bem como à mistura de cobre com mancozeb. A maior concentraçã...
Monitoramento atmosférico passivo de SO2, NO2 e O3 em áreas urbanas e de influê...
Campos,Vânia P.; Cruz,Lícia P. S.; Alves,Eagles M.; Santos,Tatiane de S.; Silva,Adriano D.; Santos,Ana C. C. dos; Lima,Angelo M. V.; Paixão,Carine S.This study is a result of undergraduate student participation in the Environmental Chemistry discipline provided by the Chemistry Institute/UFBA. The students were involved in the development of passive samplers, a project of the LAQUAM (Environmental Analytical Chemistry Laboratory). The students' residences and other neighborhoods were used to create a passive sampling network, allowing the measurement of atm...
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