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The influence of coastal processes on inner shelf sediment distribution : the E...

Geographical variation in shell shape of the pod razor shell Ensis siliqua (Biv...

An electrochemical deamidated gliadin antibody immunosensor for celiac disease ...

The first electrochemical immunosensor (EI) for the detection of antibodies against deamidated gliadin peptides (DGP) is described here. A disposable nanohybrid screen-printed carbon electrode modified with DGP was employed as the transducer's sensing surface. Real serumsampleswere successfully assayed and the results were corroborated with an ELISA kit. The presented EI is a promising analytical tool for celia...

Theoretical study of exciton migration in polymer-based solar cells

Poster apresentado no "11º Encontro Nacional de Química Física - 11ºENQF", Porto, Portugal, 09-10 maio 2013. ; Organic solar cells (OSC) are one of the most promising green technologies for energy harvesting. In these devices the active layer is composed of an organic blend of two polymers or by low weight molecule and a polymer. In either case, due to the nature of the materials used, especially of the polyme...

Nanoencapsulation of bovine lactoferrin for food and biopharmaceutical applicat...

Lactoferrin has for long captured the interest of many researchers as a natural compound with a wide variety of uses. Lactoferrin is a monomeric, iron-binding 80 kDa glycoprotein, and appears to be the subfraction of whey with the best documented antiviral, antimicrobial, anticancer and immune modulating/enhancing effects. It belongs to the family of transferrin proteins, and serves to control iron levels in bo...

Understand the importance of molecular organization at polymer-polymer interfac...

Comunicação em painel apresentada no E-MRS 2013 - Symposium B ; To improve the efficiency of organic solar cells is necessary, for instance, to increase the open-circuit voltage or increase sun-light absorption by covering complementary regions of the solar spectrum. This can be achieved by using a donor-acceptor system composed of two polymers. The versatility of these materials has the advantage of enabling ...

First-principles study of eletronic properties of radical polymers for organic ...

Nowadays, there is an increasing demand for suitable energy storage devices to power the electronic devices used in a society continually oriented to technology and mobility. In order to solve this problem, and allied to environmental concerns, organic radical batteries (ORB) have been considered as possible solution by the electronic industry. In these devices, the electrodes consist on a moiety of a radical ...

Unravelling the effect of strand orientation on exciton migration in conjugated...

The study of the average distance that singlet excitons travel during their lifetime in conjugated polymers has attracted considerable attention during the past decade, because of its importance in the functioning of many polymer-based optoelectronic devices, like solar cells and photodetectors. Intriguingly, different values of exciton diffusion length have been extracted from experiments on seemingly identica...

Pulsed laser deposition of semiconducting nanoparticles : optical emission spec...

Memory devices that use seminconductor nanocrystals (NC) for charge storage began to receive considerable attention in recent years due to their excellent performance, high capacity of memory and miniaturization. In order to integrate these materials into devices, formation of NCs and oxide layers with controlled stoichiometry, dimensions and homogeneity are required. Pulsed laser deposition (PLD) techniques ar...

Influence of electrode degradation on organic solar cells functioning – a compu...

Recently, organic solar cells (OSC) have reached the efficiency of 10% becoming a reliable alternative to the conventional high cost inorganic solar cells. However, to gain a place in the competitive market of solar cells it is necessary to improve their lifetime. Due to the nature of the materials used, there are several degradation mechanisms [1] that lead to a decrease on device efficiency and thus to its fa...