Search Results - "Souza, Helivaldo"

Nonlinear Refraction, Excited State Absorption, and Multiphoton Absorption of 1,3-Thiazolium-5-thiolate Mesoionic Compound by Nogueira, Maxwell A. M., Reyna, Albert S., Souza, Helivaldo D. S., Lira, Bruno F., de Athayde-Filho, Petrônio F., de Araújo, Cid B.

“…We synthesized the mesoionic compound 2-(4-chlorophenyl)-3-methyl-4-(4-methylphenyl)-1,3-thiazole-5-thiolate and measured its refractive and absorptive…”
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Terpinen-4-ol as an Antibacterial and Antibiofilm Agent against Staphylococcus aureus by Cordeiro, Laísa, Figueiredo, Pedro, Souza, Helivaldo, Sousa, Aleson, Andrade-Júnior, Francisco, Medeiros, Daianne, Nóbrega, Jefferson, Silva, Daniele, Martins, Evandro, Barbosa-Filho, José, Lima, Edeltrudes

“…is able to rapidly develop mechanisms of resistance to various drugs and to form strong biofilms, which makes it necessary to develop new antibacterial drugs…”
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First Hyperpolarizability of 1,3‑Thiazolium-5-Thiolates Mesoionic Compounds by Barbosa-Silva, Renato, Nogueira, Maxwell A. M, Souza, Helivaldo D. S, Lira, Bruno F, de Athayde-Filho, Petrônio F, de Araújo, Cid B

“…The first hyperpolarizabilities of the mesoionic compounds (MICs) 2-(4-chlorophenyl)-3-methyl-4-phenyl-1,3-thiazolium-5-thiolate (MIC-1),…”
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Novel esters derived from 4-hydroxychalcones as potential sunscreens with antimicrobial action by de Sousa, Abraão Pinheiro, Souza, Helivaldo Diógenes da Silva, Almeida-Júnior, Alexandre, da Silva, Marcelo Felipe Rodrigues, Cordeiro, Laísa Vilar, Lima, Edeltrudes de Oliveira, Fiss, Gabriela Fehn, de Athayde-Filho, Petrônio Filgueiras

“…Ten novel 4-esterchalcones, licochalcone analogues, were strategically synthesized to study the effect of electro-donating or electro-withdrawing substituents…”
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Antifungal activity of 2‐chloro‐N‐phenylacetamide, docking and molecular dynamics studies against clinical isolates of Candida tropicalis and Candida parapsilosis by Silva, Shellygton Lima, Pereira, Fillipe, Cordeiro, Laisa Vilar, Neto, Hermes Diniz, Santos Maia, Mayara, Silva Souza, Helivaldo Diogenes, Athayde‐Filho, Petrônio F., Scotti, Marcus Tullius, Scotti, Luciana, Lima, Edeltrudes

“…Aims This study evaluated the antifungal, antibiofilm and molecular docking of 2‐chloro‐N‐phenylacetamide against clinical isolates of Candida tropicalis and…”
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Antibacterial and Antibiofilm Activity of Myrtenol against Staphylococcus aureus by Cordeiro, Laísa, Figueiredo, Pedro, Souza, Helivaldo, Sousa, Aleson, Andrade-Júnior, Francisco, Barbosa-Filho, José, Lima, Edeltrudes

“…The increase in Staphylococcus aureus resistance to conventional antibacterials and persistent infections related to biofilms, as well as the low availability…”
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Effect of 2-chloro-N-(4-fluoro-3-nitrophenyl)acetamide in combination with antibacterial drugs against Klebsiella pneumoniae by Cordeiro, Laísa V, Souza, Helivaldo D S, Sousa, Aleson P, Andrade Júnior, Francisco P DE, Figueiredo, Pedro T R DE, Oliveira, Rafael F DE, Athayde Filho, Petrônio F DE, Oliveira-Filho, Abrahão A, Lima, Edeltrudes DE O

“…Klebsiella pneumoniae is a species of Gram-negative bacteria related to a wide range of infections and high rates of drug resistance. The combined use of…”
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Antifungal activity and mechanism of action of 2-chloro-N -phenylacetamide: a new molecule with activity against strains of Aspergillus flavus by FERREIRA, ELBA S., CORDEIRO, LAÍSA V., SILVA, DANIELE DE F., SOUZA, HELIVALDO D.S., ATHAYDE-FILHO, PETRÔNIO F. DE, BARBOSA-FILHO, JOSÉ MARIA, SCOTTI, LUCIANA, LIMA, EDELTRUDES O., CASTRO, RICARDO D. DE

“…Abstract Aspergillus genus causes many diseases, and the species Aspergillus flavus is highly virulent. Treatment of aspergillosis involves azole derivatives…”
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Synthesis, in silico Study and Antileishmanial Evaluation of New Selenides Derived from 7-Chloro-quinoline and N-Phenylacetamides by Huang, Min-Fu, Luis, José, da Silva, Alison, Rocha, Juliana, Lima, Tatjana, Scotti, Marcus, Scotti, Luciana, de Oliveira, Rafael, Souza, Helivaldo, de Athayde-Filho, Petrônio, Barbosa-Filho, José

“…This study describes a virtual screening performed for two series of selenides (28 compounds), derived from N-phenylacetamides chlorides and…”
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Combined structure- and ligand-based virtual screening aiding discovery of selenoglycolicamides as potential multitarget agents against Leishmania species by de Sousa Luis, José Alixandre, da Silva Souza, Helivaldo Diógenes, Lira, Bruno Freitas, da Silva Alves, Francinara, de Athayde-Filho, Petrônio Filgueiras, de Souza Lima, Tatjana Keesen, Rocha, Juliana Câmara, Mendonça Junior, Francisco Jaime Bezerra, Scotti, Luciana, Scotti, Marcus Tullius

“…Leishmaniasis is a neglected disease that does not have adequate treatment. We created a database with 30 selenoglycolicamides and evaluated their potential…”
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Synthesis, Spectroscopic Characterization, DFT Calculations and Preliminary Antifungal Activity of New Piperine Derivatives by Souza Jr, Joselito, Martins, Evandro, Souza, Helivaldo, de Oliveira, Rafael, Alves, Francinara, Lima, Edeltrudes, Cordeiro, Laísa, Trindade, Emmely, Lira, Bruno, Rocha, Gerd, de Athayde-Filho, Petronio, Barbosa-Filho, José

“…Four new piperine derivatives, PC1-PC4, were synthesized, and their structures were fully characterized by infrared (IR) and 1H and 13C nuclear magnetic…”
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New Diesters Derived from Piperine: in silico Study and Evaluation of Their Antimicrobial Potential by Trindade, Emmely, Souza, Helivaldo, Brandão, Maria Cláudia, Neto, Hermes, Lima, Edeltrudes, Lira, Bruno, de Athayde-Filho, Petrônio, Barbosa-Filho, José

“…Piperine, previously extracted from black pepper (Piper nigrum L.), was used as a precursor for the synthesis of twelve new diester derivatives. The final…”
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Potential of 2-Chloro- N -(4-fluoro-3-nitrophenyl)acetamide Against Klebsiella pneumoniae and In Vitro Toxicity Analysis by Cordeiro, Laísa, Diniz-Neto, Hermes, Figueiredo, Pedro, Souza, Helivaldo, Sousa, Aleson, Andrade-Júnior, Francisco, Melo, Thamara, Ferreira, Elba, Oliveira, Rafael, Athayde-Filho, Petrônio, Barbosa-Filho, José, Oliveira-Filho, Abrahão, Lima, Edeltrudes

“…causes a wide range of community and nosocomial infections. The high capacity of this pathogen to acquire resistance drugs makes it necessary to develop…”
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Synthesis, in silico Study and Antimicrobial Evaluation of New Selenoglycolicamides by Souza, Helivaldo, de Sousa, Roxana, Lira, Bruno, Vilela, Raquel, Borges, Nathalie, de Siqueira‑Junior, José, Lima, Edeltrudes, Jardim, Jeane, da Silva, Gracielle, Barbosa‑Filho, José, de Athayde‑Filho, Petrônio

“…Nine new compounds derived from selenoglycolic acid were synthesized, and their structures were fully characterized by elemental analysis, infrared (IR), 1H…”
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(R)-(+)-β-Citronellol and (S)-(-)-β-Citronellol in Combination with Amphotericin B against Candida Spp by Silva, Daniele, Diniz-Neto, Hermes, Cordeiro, Laísa, Silva-Neta, Maria, Silva, Shellygton, Andrade-Júnior, Francisco, Leite, Maria, Nóbrega, Jefferson, Morais, Maria, Souza, Juliana, Rosa, Lyvia, Melo, Thamara, Souza, Helivaldo, Sousa, Aleson, Rodrigues, Gregório, Oliveira-Filho, Abrahão, Lima, Edeltrudes

“…The enantiomers (R)-(+)-β-citronellol and (S)-(-)-β-citronellol are present in many medicinal plants, but little is understood about their bioactivity against…”
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Synthesis, in silico Study, Theoretical Stereochemistry Elucidation and Antifungal Activity of New Imides Derived from Safrole by Vilela, Raquel, Costa, Normando, Souza, Helivaldo, Cruz, Luiz, de Assis, Kelyonara, Lima, Edeltrudes, Cordeiro, Laísa, Lira, Bruno, de Athayde-Filho, Petronio, Rocha, Gerd, Barbosa-Filho, José

“…Ten imides derived from safrole, 4a-4j, were synthesized and their structures were fully characterized by infrared (IR) spectroscopy, 1H and 13C nuclear…”
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Mechanistic studies of cytotoxic activity of the mesoionic compound MIH 2.4Bl in MCF‑7 breast cancer cells by de Mascena Costa, Luciana, Debnath, Dipti, Harmon, Ashlyn, de Sousa Araújo, Silvany, da Silva Souza, Helivaldo, de Athayde Filho, Petrônio, Wischral, Aurea, Adrião Gomes Filho, Manoel, Mathis, J.

“…In the present study, the cytotoxic effects of a 1,3-thiazolium-5-thiolate derivative of a mesoionic compound, MIH 2.4Bl, were assessed in the MCF-7 breast…”
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The impact that β-citronellol isomers have on the biofilm formation of Candida yeasts by Silva, Daniele de Figueredo, Cordeiro, Laísa Vilar, Figueiredo, Pedro Thiago Ramalho, Diniz-Neto, Hermes, Souza, Helivaldo Diógenes da Silva, Lima, Edeltrudes de Oliveira

“…Infections associated with biofilms developed by spp. are becoming a great problem due to its resistance against the immune response of the host and the action…”
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Evaluation of antifungal activity, mechanisms of action and toxicological profile of the synthetic amide 2-chloro-N-phenylacetamide by Ferreira, Elba dos Santos, Cordeiro, Laísa Vilar, Silva, Daniele de Figuerêdo, Diniz Neto, Hermes, Sousa, Aleson Pereira de, Souza, Helivaldo Diógenes da Silva, Athayde-Filho, Petrônio Filgueiras de, Guerra, Felipe Queiroga Sarmento, Barbosa-Filho, José Maria, Oliveira Filho, Abrahão Alves de, Lima, Edeltrudes de Oliveira, Castro, Ricardo Dias de

“…Aspergillus niger causes infections such as otitis and pulmonary aspergillosis in immunocompromised individuals. Treatment involves voriconazole or…”
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Synthesis, in silico Study and Antimicrobial Evaluation of New Diesters Derived from Phthaloylglycine by de Oliveira, Rafael, Souza, Helivaldo, Alves, Francinara, de Sousa, Abraão, de Lima, Priscila, Huang, Min-Fu, Cordeiro, Laísa, Diniz Neto, Hermes, Lima, Edeltrudes, Trindade, Emmely, Barbosa-Filho, José, de Athayde‑Filho, Petrônio

“…New diesters derived from phthaloylglycine (7a-7i) were synthesized and their structures characterized by infrared, 1H and 13C nuclear magnetic resonance (NMR)…”
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