Results 31 to 40 of about 39,522 (160)

Nanosized Contrast Agents in Ultrasound Molecular Imaging

open access: yesFrontiers in Bioengineering and Biotechnology, 2021
Applying nanosized ultrasound contrast agents (nUCAs) in molecular imaging has received considerable attention. nUCAs have been instrumental in ultrasound molecular imaging to enhance sensitivity, identification, and quantification.
Fengyi Zeng   +6 more
doaj   +1 more source

A Genome-Scale Atlas Reveals Complex Interplay of Transcription and Translation in an Archaeon

open access: yesmSystems, 2023
The scale of post-transcriptional regulation and the implications of its interplay with other forms of regulation in environmental acclimation are underexplored for organisms of the domain Archaea.
Alan P. R. Lorenzetti   +11 more
doaj   +1 more source

Gas vesicle assembly in Microcyclus aquaticus [PDF]

open access: yesJournal of Bacteriology, 1975
When observed in the electron microscope intact gas vesicles appeared as transparent areas in whole cells of Microcylus aquaticus, whereas vesicles collapsed by centrifugation were not discernible. Within 5 min of suspending cells containing collapsed vesicles in growth medium, small transparent vesicles were detected.
A E, Konopka, J T, Staley, J C, Lara
openaire   +2 more sources

Measuring gas vesicle dimensions by electron microscopy [PDF]

open access: yesProtein Science, 2021
Abstract Gas vesicles (GVs) are cylindrical or spindle‐shaped protein nanostructures filled with air and used for flotation by various cyanobacteria, heterotrophic bacteria, and Archaea. Recently, GVs have gained interest in biotechnology applications due to their ability to serve as imaging agents and actuators for ultrasound ...
Przemysław Dutka   +7 more
openaire   +3 more sources

An Investigation into the Recycling of Gas Vesicle Protein Derived from Collapsed Gas Vesicles [PDF]

open access: yesMicrobiology, 1984
Gas vesicle protein may account for more than 6% of the cell dry weight and over 10% of the total cell protein in the planktonic cyanobacterium Anabaena Jlos-aquae. The gas vesicles collapsed by rising cell turgor pressure during buoyancy regulation can therefore represent a significant protein pool within this organism.
Hayes, PK, Walsby, AE
openaire   +1 more source

Characterization of Intracellular Structure Changes of Microcystis under Sonication Treatment by Polarized Light Scattering

open access: yesBiosensors, 2021
Cyanobacterial bloom is one of the most urgent global environmental issues, which eventually could threaten human health and safety. Sonication treatment (ST) is a potential effective method to control cyanobacteria blooms in the field.
Jiajin Li   +6 more
doaj   +1 more source

Gas vesicles [PDF]

open access: yesMicrobiological Reviews, 1975
The gas vesicle is a hollow structure made of protein. It usually has the form of a cylindrical tube closed by conical end caps. Gas vesicles occur in five phyla of the Bacteria and two groups of the Archaea, but they are mostly restricted to planktonic microorganisms, in which they provide buoyancy.
openaire   +2 more sources

Gas vesicle formation and buoyancy regulation in Pelodictyon phaeoclathratiforme (Green sulfur bacteria) [PDF]

open access: yes, 1991
Gas vesicle formation and buoyancy regulation in Pelodictyon phaeoclathratiforme strain BU1 (Green sulfur bacteria) was investigated under various laboratory conditions.
Lehmann, Susanne   +2 more
core   +1 more source

Gas vesicles and their application in biomedicine:

open access: yes, 2023
Gasvesikel sind gasgefüllte, intrazelluläre Nanostrukturen, die von einigen Mikroben als Schwebhilfe im wässrigen Milieu gebildet werden. Fotosynthetische Cyanobakterien und das extrem salzliebende Archaeon Halobacterium salinarum fottieren damit ...
Pfeifer, Felicitas
core   +1 more source

Genetically encoded mediators for sonogenetics and their applications in neuromodulation

open access: yesFrontiers in Cellular Neuroscience, 2023
Sonogenetics is an emerging approach that harnesses ultrasound for the manipulation of genetically modified cells. The great penetrability of ultrasound waves enables the non-invasive application of external stimuli to deep tissues, particularly ...
Hsien-Chu Wang   +5 more
doaj   +1 more source

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