20 documents found, page 1 of 2
High efficacy of chloroquine-derived bile salts in Pluronic F127 micelles again...
Silva, Ana Teresa; Prudêncio, Miguel; Oliveira, Isabel S.; Nogueira, Fátima; Morais, Inês; Santana, Sofia; Ferraz, Ricardo; Workneh, Eyob A.Colloidal nanocarriers can play a key role in the efficacious delivery of drugs, including antimalarials. Here, we investigated the ability of polymeric micelles of the block copolymer F127 to act as nanovehicles for two organic salts derived from chloroquine and human bile acids, namely, chloroquinium cholate (iCQP1) and chloroquinium glycocholate (iCQP1g). We have previously reported the strong in vitro antip...
Surface-active ionic liquids derived from antimalarial drugs and natural lipids...
Ferraz, Ricardo; Silva, Ana Teresa; Oliveira, Isabel S.; Duarte, Denise; Moita, Diana; Nogueira, Fátima; Prudêncio, Miguel; Gomes, PaulaThe use of Ionic Liquids (ILs) in Medicinal and Pharmaceutical Chemistry has been greatly evolving since they were first used as alternative solvents for the chemical synthesis of active pharmaceutical ingredients (APIs). ILs are now used with other purposes in this area, such as adjuvants in drug formulation and delivery, or even as bioactive compounds per se. New ionic structures with biologically relevant pr...
Synthesis and physicochemical characterization of antimalarial surface-active i...
Silva, Ana Teresa; Oliveira, Isabel; Ferraz, Ricardo; Marques, Eduardo F.; Gomes, PaulaIonic liquids are a particular class of compounds that attract interest in medicinal chemistry due to the simplicity of their preparation. Novel structures with biological activity can be achieved through simple, cost-effective reactions.1 Reusing old ionizable drugs and improving their characteristics can be achieved economically and simply by mixing them with molecules of opposite charge. This approach is att...
Improving the antimycobacterial drug Clofazimine through formation of organic s...
Bento, Clara M.; Silva, Ana Teresa; Mansano, Bruno; Aguiar, Luísa; Teixeira, Cátia; Gomes, Maria Salomé; Gomes, Paula; Silva, Tânia; Ferraz, RicardoThis work reports the synthesis, structural and thermal analysis, and in vitro evaluation of the antimicrobial activity of two new organic salts (OSs) derived from the antimycobacterial drug clofazimine and the fluoroquinolones ofloxacin or norfloxacin. Organic salts derived from active pharmaceutical ingredients (API-OSs), as those herein disclosed, hold promise as cost-effective formulations with improved fea...
Combining natural bile acids with old basic drugs affords new triple stage anti...
Silva, Ana Teresa; Oliveira, Isabel; Duarte, Denise; Moita, Diana; Prudêncio, Miguel; Nogueira, Fátima; Ferraz, Ricardo; Marques, Eduardo F.Ionic liquids (ILs) are special organic salts that have been gaining momentum in medicinal chemistry. Despite their simple and cost-effective synthesis, ILs offer an easy access to structures of biological interest by combining bioactive molecules with opposite polarities, e.g., via simple ionic pairing of an acid with a base. This makes ILs of special interest for treating malaria. Since this disease is preval...
Synthesis od new surface-active ionic liquids derived from antimalarial drugs a...
Silva, Ana Teresa; Oliveira, Isabel; Duarte, Denise; Moita, Diana; Prudêncio, Miguel; Nogueira, Fátima; Teixeira, Cátia; Ferraz, RicardoMalaria is a parasitic disease that occurs mostly in low-income countries, thus its containment or, ultimately, eradication demands new methodologies and synthetic strategies that are simple and inexpensive. Ionic liquids (ILs) may assume a prominent role in this scenario, as they are catching the attention of the Medicinal Chemistry community owing to their intrinsic biological activity and affordable synthesi...
Development of gastronomic strategies for the application and valorization of n...
Silva, Ana Teresa; Morgado, Cátia; Félix, Nelson; Basto de Lima, Maria Gabriela; Laranjeira, Cristina; Brandão, Carlos; Guerra, ManuelaIn order to develop gastronomic applications with five emulsions prototypes (three strawberry and bell pepper—red and yellow—processed differently, with aqueous vegetable phase) and two mustards with red fruits and beet, a sensory evaluation was carried out at first with a taste panel and also the online Foodpairing® tool was used. Based on previous results and also on culinary know-how, creative/aesthetic tale...
Drug-derived surface-active ionic liquids: a cost-effective way to expressively...
Silva, Ana Teresa; Oliveira, Isabel S.; Gomes, Joana; Aguiar, Luísa; Fontinha, Diana; Duarte, Denise; Nogueira, Fátima; Prudêncio, MiguelInspired by previous disclosure of room-temperature ionic liquids derived from primaquine and cinnamic acids, which displayed slightly enhanced blood-stage activity compared to the parent drug, we have now combined this emblematic antimalarial with natural fatty acids. This affords surface-active ionic liquids whose liver-stage antiplasmodial activity is either retained or slightly enhanced, while revealing blo...
Surfing the third wave of ionic liquids: a brief review on the role of surface-...
Silva, Ana Teresa; Teixeira, Cátia; Prudêncio, Cristina; Marques, Eduardo F.; Gomes, Paula; Ferraz, RicardoThe relevance of ionic liquids (ILs) is now well established in many fields, as their unique properties make them appealing as 1) greener alternatives to organic solvents (first-generation ILs), 2) tunable task-specific materials (second-generation ILs), and 3) multifunctional players in life and pharmaceutical sciences (third-generation ILs). This third wave of ILs encompasses a wide range of compounds, from b...
Drug‐derived surface‐active ionic liquids: a cost‐effective way to expressively...
Silva, Ana Teresa; Oliveira, Isabel S.; Gomes, Joana; Aguiar, Luísa; Fontinha, Diana; Duarte, Denise; Nogueira, Fátima; Prudêncio, MiguelInspired by previous disclosure of room-temperature ionic liquids derived from primaquine and cinnamic acids, which displayed slightly enhanced blood-stage activity compared to the parent drug, we have now combined this emblematic antimalarial with natural fatty acids. This affords surface-active ionic liquids whose liver-stage antiplasmodial activity is either retained or slightly enhanced, while revealing blo...