Results 61 to 70 of about 715 (124)

Physiological magnetic field strengths help magnetotactic bacteria navigate in simulated sediments

eLife
Bacterial motility is typically studied in bulk solution, while their natural habitats often are complex environments. Here, we produced microfluidic channels that contained sediment-mimicking obstacles to study swimming of magnetotactic bacteria in a ...
Agnese Codutti, Mohammad A Charsooghi, Konrad Marx, Elisa Cerdá-Doñate, Omar Muñoz, Paul Zaslansky, Vitali Telezki, Tom Robinson, Damien Faivre, Stefan Klumpp   +9 more
doaj   +1 more source

Magnetizing Biotech–Advances in (In Vivo) Magnetic Enzyme Immobilization

Engineering in Life Sciences, Volume 25, Issue 3, March 2025.
ABSTRACT Industrial biocatalysis, a multibillion dollar industry, relies on the selectivity and efficacy of enzymes for efficient chemical transformations. However, enzymes, evolutionary adapted to mild biological conditions, often struggle in industrial processes that require harsh reaction conditions, resulting in reduced stability and activity ...
Gizem Ölçücü, Karl‐Erich Jaeger, Ulrich Krauss   +2 more
wiley   +1 more source

Controlled biomineralization of magnetite (Fe₃O₄) by Magnetospirillum gryphiswaldense [PDF]

Mineralogical Magazine, 2008
AbstractResults from a study of the chemical composition and micro-structural characteristics of bacterial magnetosomes extracted from the magnetotactic bacterial strain Magnetospirillum gryphiswaldense are presented here. Using high-resolution transmission electron microscopy combined with selected-area electron diffraction and energy dispersive X-ray
Moisescu, C., Bonneville, S., Tobler, D., Ardelean, I., Benning, L.   +4 more
openaire   +4 more sources

Functional analysis of the magnetosome island in Magnetospirillum gryphiswaldense: the mamAB operon is sufficient for magnetite biomineralization. [PDF]

PLoS ONE, 2011
Bacterial magnetosomes are membrane-enveloped, nanometer-sized crystals of magnetite, which serve for magnetotactic navigation. All genes implicated in the synthesis of these organelles are located in a conserved genomic magnetosome island (MAI).
Anna Lohsse, Susanne Ullrich, Emanuel Katzmann, Sarah Borg, Gerd Wanner, Michael Richter, Birgit Voigt, Thomas Schweder, Dirk Schüler   +8 more
doaj   +1 more source

Diversity and structural‐functional insights of alpha‐solenoid proteins

Protein Science, Volume 33, Issue 11, November 2024.
Abstract Alpha‐solenoids are a significant and diverse subset of structured tandem repeat proteins (STRPs) that are important in various domains of life. This review examines their structural and functional diversity and highlights their role in critical cellular processes such as signaling, apoptosis, and transcriptional regulation.
Paula Nazarena Arrías, Zarifa Osmanli, Estefanía Peralta, Patricio Manuel Chinestrad, Alexander Miguel Monzon, Silvio C. E. Tosatto   +5 more
wiley   +1 more source

Magnetospirillum gryphiswaldense [PDF]

Trends in Microbiology, 2020
Schüler, Dirk, Monteil, Caroline, Lefèvre, Christopher   +2 more
openaire   +2 more sources

A key time point for cell growth and magnetosome synthesis of Magnetospirillum gryphiswaldense based on real-time analysis of physiological factors

Frontiers in Microbiology, 2013
Pure culture of magnetotactic bacteria with high magnetosome yield has been achieved for only a few strains. The major obstacles involve the nutritional requirements and culture conditions of the cells. To increase cell density and magnetosome production,
Jing eYang, Shuqi eLi, Xiuliang eHuang, Tao eTang, Weizhong eJiang, Tongwei eZhang, Ying eLi   +6 more
doaj   +1 more source

Integrated Microfluidics for Single‐Cell Separation and On‐Chip Analysis: Novel Applications and Recent Advances

Small Science, Volume 4, Issue 4, April 2024.
Fully integrated microsystems have the potential to revolutionize single‐cell analysis by upholding common advantages of microfluidics while eliminating the need for off‐chip sample processing. In this manuscript, multiple emerging examples capable of isolation and analysis of different types of single cells are discussed.
Hazal Kutluk, Martina Viefhues, Iordania Constantinou   +2 more
wiley   +1 more source

A Novel Highly Efficient Device for Growing Micro-Aerophilic Microorganisms

Frontiers in Microbiology, 2019
This work describes a novel, simple and cost-effective culture system, named the Micro-Oxygenated Culture Device (MOCD), designed to grow microorganisms under particularly challenging oxygenation conditions.
Maxime Fuduche, Sylvain Davidson, Céline Boileau, Long-Fei Wu, Yannick Combet-Blanc   +4 more
doaj   +1 more source

Genetic and Ultrastructural Analysis Reveals the Key Players and Initial Steps of Bacterial Magnetosome Membrane Biogenesis. [PDF]

PLoS Genetics, 2016
Magnetosomes of magnetotactic bacteria contain well-ordered nanocrystals for magnetic navigation and have recently emerged as the most sophisticated model system to study the formation of membrane bounded organelles in prokaryotes.
Oliver Raschdorf, Yvonne Forstner, Isabel Kolinko, René Uebe, Jürgen M Plitzko, Dirk Schüler   +5 more
doaj   +1 more source