Results 41 to 50 of about 28,026 (256)
The pio Operon Is Essential for Phototrophic Fe(II) Oxidation in Rhodopseudomonas palustris TIE-1 [PDF]
, 2006 Phototrophic Fe(II)-oxidizing bacteria couple the oxidation of ferrous iron [Fe(II)] to reductive CO2 fixation by using light energy, but until recently, little has been understood about the molecular basis for this process. Here we report the discovery,
Jiao, Yongqin, Newman, Dianne K.
core +4 more sources
Quantification of fluoroquinolone uptake through the outer membrane channel OmpF of Escherichia coli [PDF]
, 2017 This is the author accepted manuscript. The final version is available from the publisher via the DOI in this record.Decreased drug accumulation is a common cause of antibiotic resistance in microorganisms.
Bajaj, H +6 more
core +4 more sources
Evolving Biological Systems: Evolutionary Pressure to Inefficiency [PDF]
, 2014 The evolution of quantitative details (i.e. “parameter values”) of biological systems is highly under-researched. We use evolutionary algorithms to co-evolve parameters for a generic but biologically plausible topological differential equation model of ...
Barnes, David J., Chu, Dominique
core +2 more sources
Multiple facets of bacterial porins [PDF]
FEMS Microbiology Letters, 2001 Porins form channels allowing the transport of molecules across lipid bilayer membranes. Their structure, location and large number on the bacterial surface lend them multiple functions. Porin loops are potential targets for adhesion to other cells and binding of bactericidal compounds to the surface of Gram-negative bacteria.
W, Achouak, T, Heulin, J M, Pagès
openaire +2 more sources
Asymmetric conductivity of engineered porins [PDF]
Protein Engineering, Design and Selection, 2002 Positively charged peptide segments of 16 and 18 residues were inserted at a periplasmic turn of the porin from Rhodobacter blasticus in order to form an electric field-dependent plug. The X-ray diffraction analysis of a mutant confirmed that the structure of the porin had remained intact and that the insert was mobile.
Bannwarth, Michael, Schulz, Georg E.
openaire +3 more sources
Nanomaterials, 2019 In the present work, we provide evidence for visible light irradiation of the Au/TiO2 nanoparticles’ surface plasmon resonance band (SPR) leading to electron injection from the Au nanoparticles to the conduction band of TiO2.
Marina Radzig +9 more
doaj +1 more source
Fluoroquinolone-Transition Metal Complexes: A Strategy to Overcome Bacterial Resistance
Microorganisms, 2021 Fluoroquinolones (FQs) are antibiotics widely used in the clinical practice due to their large spectrum of action against Gram-negative and some Gram-positive bacteria.
Mariana Ferreira, Paula Gameiro
doaj +1 more source
Evolving strategies for single-celled organisms in multi-nutrient environments [PDF]
, 2015 When micro-organisms are in environments with multiple nutrients, they often preferentially utilise one first. A second is only utilised once the first is exhausted. Such a two-phase growth pattern is known as diauxic growth.
Barnes, David J., Chu, Dominique
core +1 more source
Socialization of Providencia stuartii Enables Resistance to Environmental Insults
Microorganisms, 2022 Providencia stuartii is a highly social pathogen responsible for nosocomial chronic urinary tract infections. The bacterium indeed forms floating communities of cells (FCC) besides and prior-to canonical surface-attached biofilms (SAB).
Julie Lopes +4 more
doaj +1 more source
In silico evolution of diauxic growth [PDF]
, 2015 The glucose effect is a well known phenomenon whereby cells, when presented with two different nutrients, show a diauxic growth pattern, i.e. an episode of exponential growth followed by a lag phase of reduced growth followed by a second phase of ...
A Bennett +37 more
core +1 more source