Results 91 to 100 of about 1,750 (188)
Physiological magnetic field strengths help magnetotactic bacteria navigate in simulated sediments
eLifeBacterial 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 +9 more
doaj +1 more source
Biominerals - source and inspiration for novel advanced materials [PDF]
, 1991 Biomineralization seems an odd sort of word. How can you combine biology and minerals? However, a quick look around brings to light many familiar objects that are examples of biominerals.
Evans, L.A. +3 more
core +1 more source
Bioinspired magnetic active matter and the physical limits of magnetotaxis
, 2021 Magnetotactic bacteria (MTB) are endowed with an exquisite orientation mechanism allowing them to swim along the geomagnetic field lines [1-3]. This mechanism consists of a chain of bio-synthesized magnetic nano-crystals [1,4,5]. Although the physics behind the minimum size of this biological compass is well understood [6], it is yet unclear what sets ...
Sepúlveda, Néstor +5 more
openaire +2 more sources
Role of Surface Proteins in Magnetotaxis-based Applications [PDF]
, 2018 Magnetospirillum magneticum (AMB-1) are a species of magnetotactic bacteria that are capable of orienting along the earth’s magnetic field lines through their organelles called magnetosomes.
Divecha, Heena +2 more
core
The magnetosome model: insights into the mechanisms of bacterial biomineralization. [PDF]
, 2013 Though the most ready example of biomineralization is the calcium phosphate of vertebrate bones and teeth, many bacteria are capable of creating biominerals inside their cells.
Komeili, Arash, Rahn-Lee, Lilah
core +1 more source
Magnetotaxis in droplet microswimmers
Magnetotaxis is a well known phenomenon in swimming microorganisms which sense magnetic fields e.g. by incorporating crystalline magnetosomes. In designing artificial active matter with tunable dynamics, external magnetic fields can provide a versatile method for guidance.
Wagner, Martin W. +6 more
openaire +2 more sources
Micro-photovoltaic cells designed for magnetotaxis-based controlled bacterial microrobots
IEICE Electronics Express, 2008 A new architecture allowing an increase of the photocurrent of a photovoltaic cell fabricated with a CMOS 0.18µm process is described. This cell has been designed specifically to power the onboard electronics of a 400µm × 600µm untethered microrobot propelled by magnetotactic bacteria (MTB). Four cascaded cells of an area of 200µm × 200µm each, provide
Walder André, Sylvain Martel
openaire +2 more sources
Swarm Autonomy: From Agent Functionalization to Machine Intelligence
Advanced Materials, Volume 37, Issue 2, January 15, 2025.Swarm behaviors observed in nature have inspired the development of synthetic swarms. This review covers key aspects of synthetic swarms, including features of individual agents, external stimuli, swarm behaviors, and applications, examines underlying mechanisms of swarm generation and the emergence of machine intelligence, and envisions the ...
Yibin Wang +5 more
wiley +1 more source
Small, Volume 21, Issue 2, January 15, 2025.Liquid transmission electron microscopy (TEM) is a newly established technique broadly used to study reactions in situ which is providing novel insights into fundamental biomineralization mechanisms. This review critically summarizes recent progress made using liquid TEM for the biomineralization field, highlighting transformative discoveries, first ...
Liza‐Anastasia DiCecco +3 more
wiley +1 more source
Magnetotactic Bacteria from Extreme Environments
Life, 2013 Magnetotactic bacteria (MTB) represent a diverse collection of motile prokaryotes that biomineralize intracellular, membrane-bounded, tens-of-nanometer-sized crystals of a magnetic mineral called magnetosomes.
Christopher T. Lefèvre +1 more
doaj +1 more source