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Andreia Leite
Researcher at University of Porto
Publications - 60
Citations - 739
Andreia Leite is an academic researcher from University of Porto. The author has contributed to research in topics: Chemistry & Interferometry. The author has an hindex of 16, co-authored 53 publications receiving 651 citations.
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Journal ArticleDOI
Spectroscopic and potentiometric characterization of oxovanadium(IV) complexes formed by 3-hydroxy-4-pyridinones. Rationalization of the influence of basicity and electronic structure of the ligand on the properties of V(IV)O species in aqueous solution.
Maria Rangel,Andreia Leite,M. João Amorim,Eugenio Garribba,Giovanni Micera,Elzbieta Lodyga-Chruscinska +5 more
TL;DR: Aqueous solution studies regarding the identification and characterization of complexes formed by the VIVO ion and 11 3-hydroxy-4-pyridinone derivatives have been performed using EPR and UV/vis spectroscopic techniques, and relationships between the pKa of the -OH group in position 3 of the ring are provided.
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Planar and UV written channel optical waveguides prepared with siloxane–poly(oxyethylene)–zirconia organic–inorganic hybrids. Structure and optical properties
Celso Molina,P. J. Moreira,Rogéria Rocha Gonçalves,R. A. Sá Ferreira,Younes Messaddeq,Sjl Ribeiro,Olivier Soppera,Andreia Leite,Paulo Marques,V. de Zea Bermudez,Luís D. Carlos +10 more
TL;DR: In this paper, organic-inorganic hybrid precursors were used to obtain planar waveguides with low losses in the infrared (from 0.6-1.1 dB cm−1) and a number of propagating modes in the visible (losses from 0.4 −1.5 dB cm −1).
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Fluorescent 3-hydroxy-4-pyridinone hexadentate iron chelators: intracellular distribution and the relevance to antimycobacterial properties.
Ana Nunes,Maria Podinovskaia,Andreia Leite,Paula Gameiro,Tao Zhou,Tao Zhou,Yongmin Ma,Xiaole Kong,Ulrich E. Schaible,Robert C. Hider,Maria Rangel +10 more
TL;DR: A fluorescent iron chelator, shown to be effective in inhibiting the growth of Mycobacterium avium in macrophages, is reported, together with the synthesis and characterization of two unsuccessful analogues selected to facilitate identification of the molecular properties responsible for the antimicrobial activity.
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Secondary ion mass spectrometry study of erbium diffusion in lithium niobate crystals
TL;DR: In this article, a systematic investigation of erbium diffusion in LiNbO3 is presented, where depth concentration profiles are obtained by secondary ion mass spectrometry (SIMS).
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Investigation of the insulin-like properties of zinc(II) complexes of 3-hydroxy-4-pyridinones: Identification of a compound with glucose lowering effect in STZ-induced type I diabetic animals
Tânia Moniz,M. João Amorim,Rita Ferreira,Ana Nunes,Ana M. G. Silva,Carla Queirós,Andreia Leite,Paula Gameiro,Bruno Sarmento,Fernando Remião,Yutaka Yoshikawa,Hiromu Sakurai,Maria Rangel +12 more
TL;DR: Results from an investigation in an in vivo model of STZ-induced diabetic rats demonstrate that compound bis(1,2-dimethyl-3-hydroxy-4(1H)-pyridinonate)zinc(II), Zn(dmpp)(2), significantly lowers the blood glucose levels of individuals, thus showing evidence of glucose lowering activity.