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João Costa Pessoa

Researcher at Instituto Superior Técnico

Publications -  189
Citations -  7094

João Costa Pessoa is an academic researcher from Instituto Superior Técnico. The author has contributed to research in topics: Ligand & Catalysis. The author has an hindex of 48, co-authored 180 publications receiving 6066 citations. Previous affiliations of João Costa Pessoa include University of Lisbon & Indian Institute of Technology Roorkee.

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Vanadium compounds in medicine.

TL;DR: This work reviews the medicinal applications proposed for vanadium compounds with particular emphasis on the more recent publications and concludes that the potential ofVanadium compounds to treat type 2 diabetes is still an open question and therapies using vanadium compound for e.g. antitumor and anti-parasitic related diseases remain promising.
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Synthesis, characterization, and application of vanadium-salan complexes in oxygen transfer reactions.

TL;DR: The V-Salen and V-salan complexes show higher activity and normally better selectivity in alkene oxidation and higherActivity and enantioselectivity for sulfoxidation than their parent V- salen complexes, therefore being an advantageous alternative ligand system for oxidation catalysis.
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Vanadium and proteins: Uptake, transport, structure, activity and function

TL;DR: The ability of vanadium to interfere with the metabolic processes involving Ca2+ and Mg2+, connected with its versatility to undergo changes in coordination geometry, allow V to influence the function of a large variety of phosphate-metabolizing enzymes and vanadate(V) salts and compounds have been frequently used either as inhibitors of these enzymes, or as probes to study the mechanisms of their reactions and catalytic cycle.
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Biospeciation of antidiabetic VO(IV) complexes

TL;DR: The results suggest that decomposition and subsequent ternary complex formation with endogenous or exogenous ligands in the organism affects the absorption efficacy of the originally neutral VO(IV) compounds considerably.