Results 141 to 150 of about 444,692 (336)

Antileishmanial Activities of Carvacrol Nanoencapsulate in Biopolymeric Nanoparticles

Chemistry &Biodiversity, EarlyView.
The study obtained biopolymeric nanoparticles containing carvacrol (NPCar) and evaluated their anti‐leishmanial activity. NPCar obtained presented physicochemical characteristics due to its ideal nanometric size and zeta potential, and low polydispersity index.
Joyce Cordeiro Borges, Anne Beatriz Cunha Barros, Leonardo Lima Cardoso, Tatjana de Lima Souza Keesen, Luís André de Almeida Campos, Isabella Macário Ferro Cavalcanti, Elisângela Afonso de Moura Kretzschmar   +6 more
wiley   +1 more source

Two Key Ferredoxins for Nitrogen Fixation Have Different Specificities and Biophysical Properties

Chemistry – A European Journal, EarlyView.
Two ferredoxins, FdC and FdN, are collectively essential for the process of nitrogen fixation by the iron nitrogenase in R. capsulatus. We explore the biophysical factors, through spectroscopic and structural characterizations, which determine ferredoxin functionality and pathway specificity. The structure of FdC (PDB: 9I2A) and model of FdN (AF‐D5ARY6)
Holly Addison, Pascal Pfister, Ana Lago‐Maciel, Tobias J. Erb, Antonio J. Pierik, Johannes G. Rebelein   +5 more
wiley   +1 more source

Dextran‐Assisted Biomimetic Fabrication of CdSe:Eu QDs With Enhanced Biocompatibility and Stability

Chemistry – A European Journal, EarlyView.
Dextran‐templated CdSe:Eu quantum dots were synthesized and coated with citrate or APTES to enhance stability and reduce cytotoxicity. Structural, optical, and biological evaluations demonstrated their potential for cellular imaging and theragnostic applications. Abstract A dextran templated biomimetic synthetic approach was applied for the preparation
Myrto Margariti, Marianna Roussaki, Elias Sakellis, Nikos Boukos, Maria Theodosiou, Nikoleta Kostopoulou, Eleni K. Efthimiadou   +6 more
wiley   +1 more source

Spectrophotometric Determination of Hydroxycinnamic Acids in Herbal Drugs. Part 2. Determination of Hydroxycinnamic Acids in the Presence of Polyphenolic Compounds (Review)

Регуляторные исследования и экспертиза лекарственных средств
INTRODUCTION. Polyphenolic compounds of various classes have pronounced absorption bands overlapping in almost the same ultraviolet region. This superposition of bands complicates the quantification of total hydroxycinnamic acids in herbal drugs by ...
E. V. Kompantseva, A. S. Saushkina, A. Yu. Ayrapetova   +2 more
doaj   +1 more source

Intracellular and Extracellular Efficacy of Homoisoflavone Derivatives Against Mycobacterium Tuberculosis: Progress Toward Novel Antitubercular Agents

ChemMedChem, EarlyView.
A series of 42 homoisoflavones were synthesized and evaluated against Mycobacterium tuberculosis (Mtb). Three derivatives showed potent inhibition of Mtb strains. Evaluation in infected macrophages revealed promising intracellular activity, where one derivative featuring a nitrofuranyl and piperidine group emerges as the most promising.
Sanderson D. Calixto, Juliane S. Falcão, Stella S. Antunes, Marlon H. Araujo, Alexandre L. B. Cunha, David R. Martins, Sarah M. R. Nascimento, Thatiana L. B. V. Simão, Elena B. Lasunskaia, Nelilma C. Romeiro, Paulo R. R. Costa, Michelle F. Muzitano, Guilherme S. Caleffi   +12 more
wiley   +1 more source

UTILIZAÇÃO DO ESPECTRÔMETRO DE ABSORÇÃO ATÔMICA PARA DETERMINAÇÃO DE CLORIDRATO DE METFORMINA E CLORIDRATO DE RANITIDINA EM MEDICAMENTOS

Química Nova
The utilization of atomic absorption spectrometer for metformin (MET) and ranitidine (RAN) chlorohydrates determination in medicines is proposed. The spectral lines of nickel and aluminum at 232.0 and 308.2 nm were selected for MET and RAN absorbance ...
Mariana Barbosa André de Souza, Klaiani Bez Fontana, Caroline Gonçalves, Eduardo Sidinei Chaves   +3 more
doaj   +1 more source

Controlling Lampenflora in Heritage Sites: In Situ Testing of Polyoxometalate–Ionic Liquids in the Pommery Champagne Cellar

ChemPlusChem, EarlyView.
The article evaluates polyoxometalate–ionic liquids (POM–ILs) as biocidal agents against lampenflora in the UNESCO‐listed Pommery Champagne cellar. POM–ILs effectively inhibit microbial colonization over one year with minimal visual impact and outperform the commercial biocide Preventol RI80.
Stéphanie Eyssautier‐Chuine, Ludovic Besaury, Nathalie Vaillant‐Gaveau, Sandra Villaume, Anouck Habrant, Isabel Franco‐Castillo, Marine Rondeau, Dina Aggad, Maxime Gommeaux, Gilles Fronteau, Scott G. Mitchell   +10 more
wiley   +1 more source

Expression and contribution of microphthalmia-associated transcription factor to the melanin deposition in Liancheng white ducks

Journal of Integrative Agriculture, 2020
The present study investigates the expression of microphthalmia-associated transcription factor (MITF) and its contribution to the melanin deposition in Liancheng white ducks.
Qing-wu XIN, Zhong-wei MIAO, Zhao-yuan LIU, Li LI, Lin-li ZHANG, Zhi-ming ZHU, Zheng-hong ZHANG, Nen-zhu ZHENG, Zheng-chao WANG   +8 more
doaj  

Eco‐Friendly and Ready‐To‐Market Polyurethanes: A Design of Experiment‐Guided Substitution of Toxic Catalyst and Fossil‐Based Isocyanate

ChemSusChem, EarlyView.
Increasing bio‐based and circular components in polyurethane formulation up to 65 %w/w maintaining the market acceptability through multivariate analysis approach Abstract In this contribution, we tackle the replacement of the Hg‐based catalyst and fossil‐derived isocyanate precursors toward the formulation of a more sustainable polyurethane ...
Gabriele Viada, Nicole Mariotti, Simone Galliano, Alberto Menozzi, Claudia Barolo, Matteo Bonomo   +5 more
wiley   +1 more source

Polyoxotungstates‐stabilized gold nanoparticles: how to transfer from an aqueous suspension to CH3CN

European Journal of Inorganic Chemistry, Accepted Article.
The present study aimed to evaluate available methods for preparing suspensions of gold nanoparticles stabilized by polyoxometalates (POMs@AuNPs) in CH3CN, a solvent commonly used in oxidation reactions. POMs@AuNPs were successfully synthesized in CH3CN using three different approaches: (i) in situ generation of nanoparticles via chemical reduction of ...
Richard Villanneau, Jean-Baptiste Harlé, Elise Péruse, Jimika Hassanaly, Dalil Brouri, Anna Proust, Audrey Denicourt-Nowicki, Alain Roucoux, Anne Gauvin-Bialecki   +8 more
wiley   +1 more source