BEGIN:VCALENDAR VERSION:2.0 PRODID:-//wp-events-plugin.com//7.2.3.1//EN BEGIN:VEVENT UID:10@deq.fe.up.pt DTSTART:20191107T163000Z DTEND:20191107T163000Z DTSTAMP:20210407T163440Z URL:https://deq.fe.up.pt/events/microencapsulation-a-new-world-of-possibil ities/ SUMMARY:Microencapsulation: a new world of possibilities! DESCRIPTION:Isabel Maria Martins\, Associate Laboratory LSRE-LCM | November 07\, 2019 – 16h30 | FEUP Sala B024\n\nThe use of emergent technologies\ , such as microencapsulation\, adds important gains and introduces new fea tures and innovative properties in the products. The use of this methodolo gy provides an important tool for several industries\, enabling protection and controlled release of several active ingredients. The encapsulation o f essential oils in a core-shell material or matrix has been investigated for various reasons\, such as\, protection from oxidative decomposition\, evaporation or simply to support them. A large number of methods have been suggested for microcapsule’s production\, in order to be adapted to dif ferent types of active ingredients and wall materials\, as well as\, to ge nerate particles with various sizes\, wall thickness and permeability\, th us adjusting the release rate of the active ingredient. In this seminar\, an overview regarding the main properties of active ingredients such as th e essential oils\, as well as the description of some microencapsulation t echniques\, with a particular emphasis on its final application\, will be presented.\n\nHeterogeneous photocatalysis appears as a green sustainable alternative to the industrial production of valueadded chemicals\, operati ng under environmentally friendly conditions. Graphite-like carbon nitride (GCN) is an interesting semiconductor material\, with metal-free characte r and absorption ability in the visible range spectrum. In the present wor k\, GCN was obtained through co-polymerization of dicyandiamide with citri c acid (CA). The photocatalytic performance of the photocatalysts (GCN-zCA ) was tested both in the selective production of panisaldehyde (AAD) and h ydrogen (H2) evolution\, under visible-LED irradiation (λmax = 420 nm). T he synthesis process promoted changes in the optical\, electronical and mo rphological properties of GCN. Modified materials presented enhanced produ ctions of AAD and H2 when compared with bulk GCN.\n\n\n\nIsabel M. D. Mart ins graduated in Chemical Engineering in 2006\, at Faculty of Engineering of University of Porto (FEUP). She joined the Associate Laboratory LSRE-LC M in 2006 where she was a member of the research team. Her research focuse d on the encapsulation of essential oils for textile and cosmetic applicat ions. In 2012\, and also at FEUP\, she obtained the PhD in Chemical and Bi ological Engineering under the topic “Microencapsulation of Thyme Oil by Coacervation: production\, characterization and release evaluation”\, f ollowed by a Post-Doctoral scholarship until 2014. From 2014 to 2018\, she worked at Devan Micropolis\, SA as a strategic R&\;D scientist and she was responsible for the synthesis and characterization of new formulation s for textiles applications with health and wellness benefits. In 2019\, s he returned to LSRE-LCM to work under the project Valor Natural - Natural Resources through the Extraction of High Added Value Ingredients for Appli cations in the Food Industry.\n\n\n\n \;\n\n[Host: Maria Eugénia Mace do\, Associate Laboratory\, LSRE-LCM]\nImage credits: Isabel Martins. ATTACH;FMTTYPE=image/jpeg:https://deq.fe.up.pt/wp-content/uploads/2019/12/ 1107_1700_IMMartins_1920_1S-SEMI-e1576265320468.jpg END:VEVENT END:VCALENDAR