Results 21 to 30 of about 3,770,618 (355)
Use of nuclepore filters for counting bacteria by fluorescence microscopy
Polycarbonate Nuclepore filters are better than cellulose filters for the direct counting of bacteria because they have uniform pore size and a flat surface that retains all of the bacteria on top of the filter. Although cellulose filters also retain all
J. Hobbie, R. Daley, S. Jasper
semanticscholar +1 more source
Working with bacteria and putting bacteria to work: The biopolitics of synthetic biology for energy in the United Kingdom [PDF]
The UK government has made significant investment into so called ‘fourth-generation’ biofuel technologies. These biofuels are based on engineering the metabolic pathways of bacteria in order to create products compatible with existing infrastructure ...
Aro+45 more
core +1 more source
Reference phylogenies are crucial for providing a taxonomic framework for interpretation of marker gene and metagenomic surveys, which continue to reveal novel species at a remarkable rate.
Daniel McDonald+8 more
semanticscholar +1 more source
Dispersion of motile bacteria in a porous medium [PDF]
Understanding flow and transport of bacteria in porous media is crucial to technologies such as bioremediation, biomineralization or enhanced oil recovery. While physicochemical bacteria filtration is well-documented, recent studies showed that bacterial motility plays a key role in the transport process.
arxiv +1 more source
Modulated Collective Behaviors and Condensation of Bacteria [PDF]
Bacteria can spontaneously develop collective motions by aligning their motions in dense systems. Here, we show that bacteria can also respond collectively to an alternating electrical field and form dynamic clusters oscillating at the same frequency of the field.
arxiv +1 more source
Resistance of Gram-Negative Bacteria to Current Antibacterial Agents and Approaches to Resolve It
Antimicrobial resistance represents an enormous global health crisis and one of the most serious threats humans face today. Some bacterial strains have acquired resistance to nearly all antibiotics.
Zeinab Breijyeh+2 more
semanticscholar +1 more source
Necrotrophic growth of periodontopathogens is a novel virulence factor in oral biofilms [PDF]
The oral use of antimicrobial agents embedded in toothpastes and mouth rinses results in an oral microbial massacre with high amounts of dead bacteria in close proximity to few surviving bacteria.
Bernaerts, Kristel+6 more
core +1 more source
Metabolites produced by commensal bacteria promote peripheral regulatory T cell generation
Intestinal microbes provide multicellular hosts with nutrients and confer resistance to infection. The delicate balance between pro- and anti-inflammatory mechanisms, essential for gut immune homeostasis, is affected by the composition of the commensal ...
Nicholas Arpaia+10 more
semanticscholar +1 more source
Rectification of Swimming Bacteria and Self Driven Particle Systems by Arrays of Asymmetric Barriers [PDF]
We show that the recent experimental observation of the rectification of swimming bacteria in a system with an array of asymmetric barriers occurs due to the ballistic component of the bacteria trajectories introduced by the bacterial "motor." Each bacteria selects a random direction for motion and then moves in this direction for a fixed period of ...
arxiv +1 more source