TY - JOUR
T1 - Bacterial turgor pressure can be measured by atomic force microscopy
AU - Arnoldi, Markus
AU - Fritz, Monika
AU - Bäuerlein, Edmund
AU - Radmacher, Manfred
AU - Sackmann, Erich
AU - Boulbitch, Alexei
PY - 2000/7
Y1 - 2000/7
N2 - The deformability of a bacterial wall of the gram-negative bacterium Magnetospirillum gryphiswaldense is investigated with an atomic force microscopy (AFM). A theoretical expression is derived for the force exerted by the wall on the cantilever as a function of the depths of indentation generated by the AFM tip. This reaction force is a measure for the turgor pressure of the bacterium. Results determined the turgor pressure to be in the range of 85 to 150 kPa.
AB - The deformability of a bacterial wall of the gram-negative bacterium Magnetospirillum gryphiswaldense is investigated with an atomic force microscopy (AFM). A theoretical expression is derived for the force exerted by the wall on the cantilever as a function of the depths of indentation generated by the AFM tip. This reaction force is a measure for the turgor pressure of the bacterium. Results determined the turgor pressure to be in the range of 85 to 150 kPa.
UR - http://www.scopus.com/inward/record.url?scp=0034214948&partnerID=8YFLogxK
U2 - 10.1103/PhysRevE.62.1034
DO - 10.1103/PhysRevE.62.1034
M3 - Article
C2 - 11088560
AN - SCOPUS:0034214948
SN - 1063-651X
VL - 62
SP - 1034
EP - 1044
JO - Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
JF - Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics
IS - 1 B
ER -