Synergistic effects of nitrate and ammonium ion on the growth and uptake kinetics of Monochrysis lutheri in continuous culture

1976 ◽  
Vol 36 (1) ◽  
pp. 73-84 ◽  
Author(s):  
J. Caperon ◽  
D. A. Ziemann
Keyword(s):  
Continuous Culture ◽  
Synergistic Effects ◽  
Uptake Kinetics ◽  
Ammonium Ion ◽  
Kinetics Of

scholarly journals New Trimethoprim-Like Molecules: Bacteriological Evaluation and Insights into Their Action

Antibiotics ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 709
Author(s):  
Marta Jorba ◽  
Marina Pedrola ◽  
Ouldouz Ghashghaei ◽  
Rocío Herráez ◽  
Lluis Campos-Vicens ◽  
...  
Keyword(s):  
Inhibitory Concentration ◽  
Efflux Pump ◽  
Synergistic Effects ◽  
Nicotinamide Adenine Dinucleotide Phosphate ◽  
Detailed Characterization ◽  
Low Concentrations ◽  
Pump Activity ◽  
Bacteriological Evaluation ◽  
Kinetics Of

This work reports a detailed characterization of the antimicrobial profile of two trimethoprim-like molecules (compounds 1a and 1b) identified in previous studies. Both molecules displayed remarkable antimicrobial activity, particularly when combined with sulfamethoxazole. In disk diffusion assays on Petri dishes, compounds 1a and 1b showed synergistic effects with colistin. Specifically, in combinations with low concentrations of colistin, very large increases in the activities of compounds 1a and 1b were determined, as demonstrated by alterations in the kinetics of bacterial growth despite only slight changes in the fractional inhibitory concentration index. The effect of colistin may be to increase the rate of antibiotic entry while reducing efflux pump activity. Compounds 1a and 1b were susceptible to extrusion by efflux pumps, whereas the inhibitor phenylalanine arginyl β-naphthylamide (PAβN) exerted effects similar to those of colistin. The interactions between the target enzyme (dihydrofolate reductase), the coenzyme nicotinamide adenine dinucleotide phosphate (NADPH), and the studied molecules were explored using enzymology tools and computational chemistry. A model based on docking results is reported.

Kinetics of biodegradation of Di-n-butyl phthalate in continuous culture system

Chemosphere ◽  
1998 ◽  
Vol 37 (2) ◽  
pp. 257-264 ◽  
Author(s):  
Jianlong Wang ◽  
Ping Liu ◽  
Hanchang Shi ◽  
Yi Qian
Keyword(s):  
Continuous Culture ◽  
Culture System ◽  
Continuous Culture System ◽  
Butyl Phthalate ◽  
Kinetics Of

Influence of phosphate status on phosphate uptake kinetics of maize (Zea mays) and soybean (Glycine max)

1990 ◽  
Vol 124 (2) ◽  
pp. 175-182 ◽  
Author(s):  
A. Jungk ◽  
C. J. Asher ◽  
D. G. Edwards ◽  
D. Meyer
Keyword(s):  
Zea Mays ◽  
Glycine Max ◽  
Phosphate Uptake ◽  
Uptake Kinetics ◽  
Kinetics Of

Uptake kinetics of nitrate, ammonia and phosphate by the dinoflagellateHeterocapsa circularisquamaisolated from Hiroshima Bay, Japan

2017 ◽  
Vol 65 (4) ◽  
pp. 333-339
Author(s):  
Tamiji Yamamoto ◽  
Tomoko Kishigami ◽  
Hikaru Nakagawa
Keyword(s):  
Uptake Kinetics ◽  
Kinetics Of

Growth kinetics of haloalkaliphilic, sulfur-oxidizing bacterium Thioalkalivibrio versutus strain ALJ 15 in continuous culture

Extremophiles ◽  
2004 ◽  
Vol 8 (3) ◽  
pp. 185-192 ◽  
Author(s):  
Horia Banciu ◽  
Dimitry Y. Sorokin ◽  
Robbert Kleerebezem ◽  
Gerard Muyzer ◽  
Erwin A. Galinski ◽  
...  
Keyword(s):  
Continuous Culture ◽  
Growth Kinetics ◽  
Sulfur Oxidizing ◽  
Kinetics Of

scholarly journals In vitro dosimetry of agglomerates

Nanoscale ◽  
2014 ◽  
Vol 6 (13) ◽  
pp. 7325-7331 ◽  
Author(s):  
V. Hirsch ◽  
C. Kinnear ◽  
L. Rodriguez-Lorenzo ◽  
C. A. Monnier ◽  
B. Rothen-Rutishauser ◽  
...  
Keyword(s):  
Cellular Uptake ◽  
Diffusion Coefficients ◽  
Uptake Kinetics ◽  
Small Particles ◽  
Au Nps ◽  
Kinetics Of ◽  
Lower Diffusion ◽  
Uptake Mechanisms ◽  
In Vitro Dosimetry

A well-controlled route towards biocompatible agglomerated Au-NPs is reported, which span the range from small particles with high diffusion coefficients to larger particles with lower diffusion coefficients. Difference in uptake kinetics of single NPs and agglomerates can be explained by particokinetics, without the need to consider size-mediated cellular uptake mechanisms.

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