Biofilm (Mikrobiologie 
)
Biofilm je společenstvo mikroorganismů, vázané k určitému povrchu a obklopené polysacharidy, které buňky v biofilmu vylučují. Obecně totiž platí, že povrchy v přírodě vykazují větší koncentraci živin než jejich okolí. Povrchy jsou nadto velmi rozmanité a díky statickému náboji umožňují prokaryotním buňkách snadněji adherovat. Polysacharidové pouzdro kolem biofilmu pak společně s proteiny, nukleovými kys...
Biofilm researchers: this small but very neat journal (which I have published in!) is now on the platform. #biofilm #science
RE: https://bsky.app/profile/did:plc:sidc6vba75ypvmkxcpcuc6ep/post/3lixahl4hjk2f
#FishTankDiary Day 10
Amonia is not at 0 yet, but 0.1 is not bad 
We've also noticed that the Limnophila heterophylla is growing very well. Also it retracts when the light goes down, and expands when light goes on.
#FishTank #aquascaping #aquarium @aquarium
#Fermented clothing? How the #biofilm on kombucha can be turned into green #textiles.
https://phys.org/news/2025-01-fermented-biofilm-kombucha-green-textiles.html
The bacterial species in subgingival plaque can be grouped into 5 major complexes. The red complex (Porphyromonas gingivalis, Treponema denticola, Tannerella forsythia) is closely tied to periodontal disease severity (pocket depth, bleeding). These findings highlight the role of sequential microbial colonization in shaping pathogenic ecosystems.
#periodontitis #gingivitis #Oralhealth #publichealth #microbiota #Biofilm #DentalCare #health
From: Socransky et al., 1998. https://doi.org/10.1111/j.1600-051x.1998.tb02419.x
Nice work by Sanika Vaidya (and collegues)
done during our PhDs together at @maxplanckgesellschaft and @unibasel
Peptidoglycan triggers #biofilm formation across bacterial species.
My #introduction in #English seems to have been lost in moving instances, so here's a fast-drawn new one in hashtags:
#science #physics
since 2021 working on
#fiberlinks #frequency #time #transfer #reference #quantum #metrology
before that on
#biophysics #raman #spectroscopy #microscopy #biofilm #bacteria #protein #microplastics
#programming
#python (#fortran #mathematica )
Other interests:
#plants #cats #sciencefiction #fantasy #reading #writing #audiobooks
Deciphering the internal mechanism of nitrogen removal from sludge and biofilm under low temperature from the perspective of microbial function metabolism. #BNR #Nitrogen #sludge #wastewater #biofilm #bacteria https://www.sciencedirect.com/science/article/abs/pii/S0013935124025921
Deciphering the internal mechanism of nitrogen removal from sludge and biofilm under low temperature from the perspective of microbial function metabolism. #BNR #Nitrogen #sludge #wastewater #biofilm #bacteria https://www.sciencedirect.com/science/article/abs/pii/S0013935124025921
I love that the first section heading in this piece is not "Introduction" but "Imagine"
'Physics is the focus of this perspective. However, rather than describing isolated physical phenomena we form a link between physics and biology by asking how certain classes of physical processes occurring in biofilms drive their development, shape their morphology, maintain homeostasis, and regulate their response to environmental stresses.'
#Microbiology #Biofilm
https://www.pnas.org/doi/10.1073/pnas.2403842121
@cmkobel @oveoyas But wouldn't the microbe-microbe interactions within the host already be part of the #omics data?
Certainly finding the #species producing a particular protein/transcript would be very difficult (heck, even classifying microbial species is tricky given widespread horizontal gene transfer), so analyzing such data would be very hard.
Or were you talking about microbe-microbe interactions outside of a host, such as those in a multi-species #biofilm on a surface (for example)?
The geometry of life: Physicists determine what controls #biofilm growth
https://phys.org/news/2024-07-geometry-life-physicists-biofilm-growth.html #Bacteria
The biophysical basis of bacterial colony growth https://www.nature.com/articles/s41567-024-02572-3
"the fitness of a biofilm—its ability to grow, expand, and absorb nutrients—is largely impacted by the contact angle that the biofilm's edge makes with the substrate... this geometry has a bigger influence on fitness than anything else, including the rate at which the cells can reproduce. That was a big surprise"
#Candida biofilm formation. @laxmirai @c_denfert &co identify novel modulators of #Calbicans #biofilm formation, revealing that the TFs ZCF15 & ZCF26 regulate metabolic reprogramming during the transition from planktonic to biofilm growth #PLOSBiology https://plos.io/3VVGYOs
Call-out to fellow #microbiologists.
Retooting to skeet from Bluesky for greater reach.
“ what are y'all using for biofilm quantification on a surface? We've been doing crystal violet bc that's what I've always done, but I'm looking at safranin staining. I swear there were papers on staining the sugars and proteins in biofilms, but I'm not finding them. TIA! 
”
A Whiff of #Taxonomy – Altiarchaeum hamiconexum
https://schaechter.asmblog.org/schaechter/2024/04/a-whiff-of-taxonomy-altiarchaeum-hamiconexum.html by @STCmicrobeblog
"within its #biofilm... Individual coccoid cells are rather distant from each other. Yet they are connected by thin cellular appendages... the constant structure and size of these appendages define the distance between cells. The three-dimensional reconstruction of the appendage reveals a remarkable hook structure"
Können laser-strukturierte Oberflächen die Bildung eines Biofilms verhindern? Das fragt unser #PaperdesMonats aus dem Themenfeld #Umwelt und diskutiert die Herstellung #bakterienabweisender Oberflächen mit Hilfe von #Laserstrahlung.
#LIPSS #Biofilm
https://www.bam.de/Content/DE/Paper-des-Monats/2024/Umwelt/2024-04-01-paper-des-monats-umwelt.html
#FEMSmicroBlog: Mangrove trees in the #Caribbean as cyanobacterial reservoirs
https://fems-microbiology.org/femsmicroblog-mangrove-trees-in-the-caribbean-as-cyanobacterial-reservoirs/
Genomes of nine #biofilm-forming filamentous strains of #Cyanobacteria isolated from #mangrove habitats of #Guadeloupe https://academic.oup.com/femsmicrobes/article/doi/10.1093/femsmc/xtad024/7473707
"Within each of these genera, strains have variable metabolic abilities. For example, only two of the four Karukerafilum strains contain genes for nitrogen fixation, an ecologically important function in mangrove ecosystems."
Healing and treatment of chronic wounds are often complicated due to #biofilm formation by pathogens. Can Plasma Activated Water as pre-treatment strategy help? Read this #preprint, evaluated on @prereview, to find out.
.@HannahDayton @laahrs &co show that #bacteria in #biofilms divide along #oxygen gradients; their end-to-end patterning affects how molecules move through the #biofilm, and so the physiology & drug susceptibility of biofilm subzones #PLOSBiology https://plos.io/3Oscboo
in 
