Journal: ACS Omega

Article Title: New Antimicrobial Cyclodepsipeptides from a Freshwater Fungus from the Sierra Madre Oriental in Mexico

doi: 10.1021/acsomega.4c10990

Figure Lengend Snippet: Antimicrobial Activity of 4 and 5

Article Snippet: From the 3069–4145 FWF species described, around 300 metabolites have been isolated., During our search for new specialized metabolites with antimicrobial activity from unexplored sources, we isolated an unidentified aquatic fungus (CR34) from decaying wood samples submerged at the waterfall “El Caracol” in Iturbide, Nuevo Leon, at the SMO ( Figure ), which showed modest antimicrobial activity against Acinetobacter baumannii ATCC 17978 and a multidrug-resistant clinical strain A564 (∼50% inhibition; data not shown).

Techniques: Activity Assay, Inhibition, Positive Control

Journal: Antibiotics

Article Title: Antibacterial Activity of Colloidal Silver against Gram-Negative and Gram-Positive Bacteria

doi: 10.3390/antibiotics9010036

Figure Lengend Snippet: Colloidal silver presents bactericidal activity against Gram-negative and Gram-positive bacteria. Time–kill curves of susceptible and multidrug-resistant (MDR) strains of Acinetobacter baumannii (ATCC 17978 and #11) ( A ), Pseudomonas aeruginosa (PAO1 and Pa238) ( B ), Escherichia coli (ATCC 25922 and Ec mcr1 +) ( C ), Staphylococcus aureus (Sa24 and USA300#1) ( D ), and Enterococcus faecalis (VS and VR) ( E ) in the presence of 0.5×, 1×, and 2× minimal inhibitory concentration (MIC) of colloidal silver for 24 h. CTL: control, bacteria without treatment. The MICs of colloidal silver against ATCC 17978, #11, PAO1, Pa238, ATCC 25922, Ec mcr 1+, E. faecalis VS, E. faecalis VR, Sa24, and USA300#1 were 4, 4, 4, 8, 4, 8, 8, 8, 8, and 8 mg/L, respectively.

Article Snippet: The MICs of colloidal silver against ATCC 17978, #11, PAO1, Pa238, ATCC 25922, Ec mcr 1+, E. faecalis VS, E. faecalis VR, Sa24, and USA300#1 were 4, 4, 4, 8, 4, 8, 8, 8, 8, and 8 mg/L, respectively.

Techniques: Activity Assay, Bacteria, Concentration Assay, Control

Journal: Antibiotics

Article Title: Antibacterial Activity of Colloidal Silver against Gram-Negative and Gram-Positive Bacteria

doi: 10.3390/antibiotics9010036

Figure Lengend Snippet: Production of reactive oxygen species (ROS) in Gram-negative and Gram-positive bacteria. Production of ROS by susceptible and MDR strains of A. baumannii (ATCC 17978 and #11) ( A ), P. aeruginosa (PAO1 and Pa238) ( B ), E. coli (ATCC 25922 and Ec mcr1 +) ( C ), S. aureus (Sa24 and USA300#1) ( D ), and E. faecalis (VS and VR) ( E ) in the presence of 0.25×, 0.5×, and 1× MIC of colloidal silver, 10 mg/L ampicillin, 10 and 64 mg/L ciprofloxacin, and 10 and 256 mg/L vancomycin for 24 h. CTL: control, bacteria without treatment. Data are represented as means ± standard errors of the means (SEM) from 12 replicates in three independent experiments. * p < 0.05: treatment vs. control. The MICs of colloidal silver against ATCC 17978, #11, PAO1, Pa238, ATCC 25922, Ec mcr 1+, E. faecalis VS, E. farcalis VR, Sa24, and USA300#1 were 4, 4, 4, 8, 4, 8, 8, 8, 8, and 8 mg/L, respectively.

Article Snippet: The MICs of colloidal silver against ATCC 17978, #11, PAO1, Pa238, ATCC 25922, Ec mcr 1+, E. faecalis VS, E. faecalis VR, Sa24, and USA300#1 were 4, 4, 4, 8, 4, 8, 8, 8, 8, and 8 mg/L, respectively.

Techniques: Bacteria, Control