Results 51 to 60 of about 915,682 (361)

Antimicrobial Activity of Isopteropodine

Zeitschrift für Naturforschung C, 2005
Bioassay-directed fractionation for the determination of antimicrobial activity of Uncaria tomentosa, has led to the isolation of isopteropodine (0.3%), a known Uncaria pentacyclic oxindol alkaloid that exhibited antibacterial activity against Gram positive bacteria.
García, Rubén, Cayunao, Cesia, Bocic, Ronny, Backhouse, Nadine, Delporte, Carla, Zaldivar, Mercedes, Erazo, Silvia   +6 more
openaire   +3 more sources

Real‐time assay of ribonucleotide reductase activity with a fluorescent RNA aptamer

FEBS Letters, EarlyView.
Ribonucleotide reductases (RNR) synthesize DNA building blocks de novo, making them crucial in DNA replication and drug targeting. FLARE introduces the first single‐tube real‐time coupled RNR assay, which enables isothermal tracking of RNR activity at nanomolar enzyme levels and allows the reconstruction of allosteric regulatory patterns and rapid ...
Jacopo De Capitani, Noemi E. Nwosu, Viktoria Gocke, Müge Kasanmascheff, Hannes Mutschler   +4 more
wiley   +1 more source

Antimicrobial activity of biogenically produced spherical Se-nanomaterials embedded in organic material against Pseudomonas aeruginosa and Staphylococcus aureus strains on hydroxyapatite-coated surfaces [PDF]

, 2017
In an effort to prevent the formation of pathogenic biofilms on hydroxyapatite (HA)-based clinical devices and surfaces, we present a study evaluating the antimicrobial efficacy of Spherical biogenic Se-Nanostructures Embedded in Organic material (Bio Se-
Demeter M., Lampis S., Lemire J. A., Piacenza E., Presentato A., Turner R. J., Vallini G., Zonaro E.   +7 more
core   +1 more source

Antimicrobial resistance and antimicrobial activity of plant-based antimicrobial peptides against bacteria

Letters in Animal Biology
Antimicrobial peptides (AMPs) are a class of short, usually positively charged, polypeptides which are widely used to overcome the threat of the antimicrobial resistance. The potential of the AMPs is increasing as a new class of antibiotics.
Asif Ali, Silla Ambrose, Dilawar Hussain, Faisal Hafeez, Tayyaba Asghar, Syed Noraiz Arif Shah, Momina Ahsan, Muhammad Shakir, Arsam Ali, Arslan Muhammad Ali Khan, Muhammad Usama Javed   +10 more
doaj   +1 more source

Structural biology of ferritin nanocages

FEBS Letters, EarlyView.
Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley   +1 more source

In Vitro Antimicrobial Activities of Organic Acids and Their Derivatives on Several Species of Gram-Negative and Gram-Positive Bacteria. [PDF]

, 2019
The objective of this study was to determine the in vitro antimicrobial activity of several organic acids and their derivatives against Gram-positive (G+) and Gram-negative (G-) bacteria.
Atwill, Edward Robert, Kovanda, Lauren, Li, Xunde, Liu, Yanhong, Luo, Jia, Vaessen, Stefan, Wei, Xiaohong, Wu, Xixi, Zhang, Wen   +8 more
core   +1 more source

Antimicrobial Activity of Halogens

Journal of Food Protection, 1981
The bactericidal and sporicidal effects of halogens are reviewed. Chlorine and iodine are the halogens most widely used for inactivating microorganisms. Compounds containing chlorine and iodine are, in general, equally effective in destroying vegetative cells, but chlorine compounds are more effective in inactivating spores.
openaire   +2 more sources

Automation of antimicrobial activity screening [PDF]

AMB Express, 2016
Manual and automated methods were compared for routine screening of compounds for antimicrobial activity. Automation generally accelerated assays and required less user intervention while producing comparable results. Automated protocols were validated for planktonic, biofilm, and agar cultures of the oral microbe Streptococcus mutans that is commonly ...
Forry, Samuel P., Madonna, Megan C., López-Pérez, Daneli, Lin, Nancy J., Pasco, Madeleine D.   +4 more
openaire   +2 more sources

Tumour–host interactions in Drosophila: mechanisms in the tumour micro‐ and macroenvironment

Molecular Oncology, EarlyView.
This review examines how tumour–host crosstalk takes place at multiple levels of biological organisation, from local cell competition and immune crosstalk to organism‐wide metabolic and physiological collapse. Here, we integrate findings from Drosophila melanogaster studies that reveal conserved mechanisms through which tumours hijack host systems to ...
José Teles‐Reis, Tor Erik Rusten
wiley   +1 more source

Development of Mucoadhesive Gel Microbicide to Target Mucosal HIV Reservoirs [PDF]

, 2014
The wide use of microbicide is mainly depends on its effectiveness, less frequent application, ready availability and most importantly cost. The aim of this work was to develop affordable microbicide mucoadhesive gel formulation of synthetic anti HIV ...
Shegokar, Ranjita, Singh, Kamalinder K
core   +1 more source