T. Beveridge, Structures of gram-negative cell walls and their derived membrane vesicles, J Bacteriol, vol.181, pp.4725-4733, 1999.

T. Beveridge, Ultrastructure, Chemistry, and Function of the Bacterial Wall, Int Rev Cytol, vol.72, pp.229-317, 1981.
DOI : 10.1016/S0074-7696(08)61198-5

K. Amako, K. Murata, and A. Umeda, Observed by the Rapid-Freezing and Substitution Fixation Method, Microbiology and Immunology, vol.127, issue.1, pp.95-99, 1983.
DOI : 10.1111/j.1348-0421.1983.tb03571.x

K. Huang, R. Mukhopadhyay, B. Wen, Z. Gitai, and N. Wingreen, Cell shape and cell-wall organization in Gram-negative bacteria, Proceedings of the National Academy of Sciences, vol.105, issue.49, pp.19282-19287, 2008.
DOI : 10.1073/pnas.0805309105

M. Obara and T. Nakae, Porin of Pseudomonas aeruginosa forms low conductance ion channel in planar lipid bilayers, Biochemical and Biophysical Research Communications, vol.186, issue.2, pp.645-651, 1992.
DOI : 10.1016/0006-291X(92)90795-M

G. Lyon and R. Novick, Peptide signaling in Staphylococcus aureus and other Gram-positive bacteria, Peptides, vol.25, issue.9, pp.1389-1403, 2004.
DOI : 10.1016/j.peptides.2003.11.026

D. Gally, K. Bray, and S. Cooper, Synthesis of peptidoglycan and membrane during the division cycle of rod-shaped, gram-negative bacteria., Journal of Bacteriology, vol.175, issue.10, pp.3121-3130, 1993.
DOI : 10.1128/jb.175.10.3121-3130.1993

W. Paranchych and L. Frost, The Physiology and Biochemistry of Pili, Advances in Microbial Physiology, vol.29, pp.53-114, 1988.
DOI : 10.1016/S0065-2911(08)60346-X

R. Emerson and T. Camesano, Nanoscale Investigation of Pathogenic Microbial Adhesion to a Biomaterial, Applied and Environmental Microbiology, vol.70, issue.10, pp.6012-6022, 2004.
DOI : 10.1128/AEM.70.10.6012-6022.2004

P. Danese, L. Pratt, S. Dove, and R. Kolter, The outer membrane protein, Antigen 43, mediates cell-to-cell interactions within Escherichia coli biofilms, Molecular Microbiology, vol.65, issue.2, pp.424-432, 2000.
DOI : 10.1046/j.1365-2958.1999.01353.x

M. Klausen, A. Heydorn, P. Ragas, L. Lambertsen, and A. Aaes-jorgensen, Biofilm formation by Pseudomonas aeruginosa wild type, flagella and type IV pili mutants, Molecular Microbiology, vol.413, issue.6, pp.1511-1524, 2003.
DOI : 10.1046/j.1365-2958.2003.03525.x

S. Da-re, L. Quere, B. Ghigo, J. Beloin, and C. , Tight Modulation of Escherichia coli Bacterial Biofilm Formation through Controlled Expression of Adhesion Factors, Applied and Environmental Microbiology, vol.73, issue.10, pp.3391-3403, 2007.
DOI : 10.1128/AEM.02625-06

URL : https://hal.archives-ouvertes.fr/pasteur-00331439

N. Ledeboer and B. Jones, Exopolysaccharide Sugars Contribute to Biofilm Formation by Salmonella enterica Serovar Typhimurium on HEp-2 Cells and Chicken Intestinal Epithelium, Journal of Bacteriology, vol.187, issue.9, pp.3214-3226, 2005.
DOI : 10.1128/JB.187.9.3214-3226.2005

K. Jonas, H. Tomenius, A. Kader, S. Normark, and U. Romling, Roles of curli, cellulose and BapA in Salmonella biofilm morphology studied by atomic force microscopy, BMC Microbiology, vol.7, issue.1, p.9, 2007.
DOI : 10.1186/1471-2180-7-70

C. Beloin, A. Roux, and J. Ghigo, Escherichia coli Biofilms, Current Topics in Microbiology and Immunology, vol.322, p.249, 2008.
DOI : 10.1007/978-3-540-75418-3_12

URL : https://hal.archives-ouvertes.fr/pasteur-00473297

H. Sun, D. Zusman, and W. Shi, Type IV pilus of Myxococcus xanthus is a motility apparatus controlled by the frz chemosensory system, Current Biology, vol.10, issue.18, pp.1143-1146, 2000.
DOI : 10.1016/S0960-9822(00)00705-3

M. Mcbride, Bacterial Gliding Motility: Multiple Mechanisms for Cell Movement over Surfaces, Annual Review of Microbiology, vol.55, issue.1, pp.49-75, 2001.
DOI : 10.1146/annurev.micro.55.1.49

R. Harshey, Bacterial Motility on a Surface: Many Ways to a Common Goal, Annual Review of Microbiology, vol.57, issue.1, pp.249-273, 2003.
DOI : 10.1146/annurev.micro.57.030502.091014

L. Craig, M. Pique, and J. Tainer, Type IV pilus structure and bacterial pathogenicity, Nature Reviews Microbiology, vol.166, issue.5, pp.363-378, 2004.
DOI : 10.1084/jem.20031159

G. Ulett, J. Valle, C. Beloin, O. Sherlock, and J. Ghigo, Functional Analysis of Antigen 43 in Uropathogenic Escherichia coli Reveals a Role in Long-Term Persistence in the Urinary Tract, Infection and Immunity, vol.75, issue.7, pp.3233-3244, 2007.
DOI : 10.1128/IAI.01952-06

URL : https://hal.archives-ouvertes.fr/pasteur-00331433

A. Mabbett, G. Ulett, R. Watts, J. Tree, and M. Totsika, Virulence properties of asymptomatic bacteriuria Escherichia coli, International Journal of Medical Microbiology, vol.299, issue.1, pp.53-63, 2009.
DOI : 10.1016/j.ijmm.2008.06.003

J. Thwaites and N. Mendelson, Biomechanics of bacterial walls: studies of bacterial thread made from Bacillus subtilis., Proceedings of the National Academy of Sciences, vol.82, issue.7, pp.2163-2167, 1985.
DOI : 10.1073/pnas.82.7.2163

J. Thwaites and N. Mendelson, Mechanical Behaviour of Bacterial Cell Walls, Advances in Microbial Physiology, vol.32, pp.173-222, 1991.
DOI : 10.1016/S0065-2911(08)60008-9

J. Costerton, P. Stewart, and E. Greenberg, Bacterial Biofilms: A Common Cause of Persistent Infections, Science, vol.284, issue.5418, pp.1318-1322, 1999.
DOI : 10.1126/science.284.5418.1318

C. Volle, M. Ferguson, K. Aidala, E. Spain, and M. Nunez, 109J, Langmuir, vol.24, issue.15, pp.8102-8110, 2008.
DOI : 10.1021/la8009354

R. Belas, M. Simon, and M. Silverman, Regulation of lateral flagella gene transcription in Vibrio parahaemolyticus., Journal of Bacteriology, vol.167, issue.1, pp.210-218, 1986.
DOI : 10.1128/jb.167.1.210-218.1986

L. Csonka, Physiological and genetic responses of bacteria to osmoticstress, Microbiological Reviews, vol.53, pp.121-147, 1989.

D. Bartlett, M. Wright, A. Yayanos, and M. Silverman, Isolation of a gene regulated by hydrostatic pressure in a deep-sea bacterium, Nature, vol.342, issue.6249, pp.572-574, 1989.
DOI : 10.1038/342572a0

N. Chemeris and B. Fikhte, Results of measuring the modulus of elasticity of microorganism cell walls, Mikrobiologiia, vol.48, pp.99-101, 1979.

J. Ubbink and P. Schar-zammaretti, Probing bacterial interactions: integrated approaches combining atomic force microscopy, electron microscopy and biophysical techniques, Micron, vol.36, issue.4, pp.293-320, 2005.
DOI : 10.1016/j.micron.2004.11.005

J. Ubbink and P. Schar-zammaretti, Colloidal properties and specific interactions of bacterial surfaces, Current Opinion in Colloid & Interface Science, vol.12, issue.4-5, pp.263-270, 2007.
DOI : 10.1016/j.cocis.2007.08.004

V. Vadillo-rodriguez, T. Beveridge, and J. Dutcher, Surface Viscoelasticity of Individual Gram-Negative Bacterial Cells Measured Using Atomic Force Microscopy, Journal of Bacteriology, vol.190, issue.12, pp.4225-4232, 2008.
DOI : 10.1128/JB.00132-08

P. Schar-zammaretti, Surface morphology, elasticity and interactions of lactic acid bacteria studied by atomic force microscopy. Abstracts of Papers of the, pp.397-397, 2002.

Y. Dufrêne, C. Boonaert, H. Van-der-mei, H. Busscher, and P. Rouxhet, Probing molecular interactions and mechanical properties of microbial cell surfaces by atomic force microscopy, Ultramicroscopy, vol.86, issue.1-2, pp.113-120, 2001.
DOI : 10.1016/S0304-3991(00)00079-6

Y. Dufrêne, Towards nanomicrobiology using atomic force microscopy, Nature Reviews Microbiology, vol.456, issue.9, pp.674-680, 2008.
DOI : 10.1038/nrmicro1948

G. Francius, B. Tesson, E. Dague, V. Martin-jezequel, and Y. Dufrene, Nanostructure and nanomechanics of live Phaeodactylum tricornutum morphotypes, Environmental Microbiology, vol.26, issue.5, pp.1344-1356, 2008.
DOI : 10.1038/149331a0

G. Francius, S. Lebeer, D. Alsteens, L. Wildling, and H. Gruber, Detection, Localization, and Conformational Analysis of Single Polysaccharide Molecules on Live Bacteria, ACS Nano, vol.2, issue.9, pp.1921-1929, 2008.
DOI : 10.1021/nn800341b

G. Francius, O. Domenech, M. Mingeot-leclercq, and Y. Dufrene, Direct Observation of Staphylococcus aureus Cell Wall Digestion by Lysostaphin, Journal of Bacteriology, vol.190, issue.24, pp.7904-7909, 2008.
DOI : 10.1128/JB.01116-08

A. Touhami, M. Jericho, J. Boyd, and T. Beveridge, Nanoscale Characterization and Determination of Adhesion Forces of Pseudomonas aeruginosa Pili by Using Atomic Force Microscopy, Journal of Bacteriology, vol.188, issue.2, pp.370-377, 2006.
DOI : 10.1128/JB.188.2.370-377.2006

T. Schmid, J. Burkhard, B. Yeo, W. Zhang, and R. Zenobi, Towards chemical analysis of nanostructures in biofilms I: imaging of biological nanostructures, Analytical and Bioanalytical Chemistry, vol.90, issue.5, pp.1899-1905, 2008.
DOI : 10.1007/s00216-008-2100-2

A. Meincken, D. Holroyd, and M. Rautenbach, Atomic Force Microscopy Study of the Effect of Antimicrobial Peptides on the Cell Envelope of Escherichia coli, Antimicrobial Agents and Chemotherapy, vol.49, issue.10, pp.4085-4092, 2005.
DOI : 10.1128/AAC.49.10.4085-4092.2005

N. Mortensen, J. Fowlkes, C. Sullivan, D. Allison, and N. Larsen, Effects of Colistin on Surface Ultrastructure and Nanomechanics of Pseudomonas aeruginosa Cells, Langmuir, vol.25, issue.6, pp.3728-3733, 2009.
DOI : 10.1021/la803898g

M. Mulvey, Y. Lopez-boado, C. Wilson, R. Roth, and W. Parks, Induction and Evasion of Host Defenses by Type 1-Piliated Uropathogenic Escherichia coli, Science, vol.282, issue.5393, pp.1494-1497, 1998.
DOI : 10.1126/science.282.5393.1494

M. Van-der-woude and I. Henderson, Regulation and Function of Ag43 (Flu), Annual Review of Microbiology, vol.62, issue.1, pp.153-169, 2008.
DOI : 10.1146/annurev.micro.62.081307.162938

T. Wiles, R. Kulesus, and M. Mulvey, Origins and virulence mechanisms of uropathogenic Escherichia coli, Experimental and Molecular Pathology, vol.85, issue.1, pp.11-19, 2008.
DOI : 10.1016/j.yexmp.2008.03.007

L. Pratt and R. Kolter, biofilm formation: roles of flagella, motility, chemotaxis and type I pili, Molecular Microbiology, vol.86, issue.2, pp.285-293, 1998.
DOI : 10.1046/j.1365-2958.1998.01061.x

M. Chaveroche, J. Ghigo, and C. Enfert, A rapid method for efficient gene replacement in the filamentous fungus Aspergillus nidulans, Nucleic Acids Research, vol.28, issue.22, pp.22-97, 2000.
DOI : 10.1093/nar/28.22.e97

C. Korea, R. Badouraly, M. Prévost, J. Ghigo, and C. Beloin, Escherichia coli K-12 possesses multiple cryptic but functional chaperone-usher fimbriae with distinct surface specificities, Environmental Microbiology, vol.93, issue.7, pp.1957-1977, 2010.
DOI : 10.1111/j.1462-2920.2010.02202.x

URL : https://hal.archives-ouvertes.fr/pasteur-01393508

A. Roux, C. Beloin, and J. Ghigo, Combined Inactivation and Expression Strategy To Study Gene Function under Physiological Conditions: Application to Identification of New Escherichia coli Adhesins, Journal of Bacteriology, vol.187, issue.3, pp.1001-1013, 2005.
DOI : 10.1128/JB.187.3.1001-1013.2005

E. Hahn, P. Wild, U. Hermanns, P. Sebbel, and R. Glockshuber, Exploring the 3D Molecular Architecture of Escherichia coli Type 1 Pili, Journal of Molecular Biology, vol.323, issue.5, pp.845-857, 2002.
DOI : 10.1016/S0022-2836(02)01005-7

J. Miyazaki, W. Ba-thein, T. Kumao, M. Yasuoka, and H. Akaza, to adhere to and invade bladder epithelial cells, FEMS Immunology & Medical Microbiology, vol.33, issue.1, pp.23-26, 2002.
DOI : 10.1111/j.1574-695X.2002.tb00567.x

P. Klemm and G. Christiansen, Three fim genes required for the regulation of length and mediation of adhesion of Escherichia coli type 1 fimbriae, MGG Molecular & General Genetics, vol.160, issue.3, pp.439-445, 1987.
DOI : 10.1007/BF00328136

A. Reisner, J. Haagensen, M. Schembri, E. Zechner, and S. Molin, Development and maturation of Escherichia coli K-12 biofilms, Molecular Microbiology, vol.97, issue.4, pp.933-946, 2003.
DOI : 10.1046/j.1365-2958.2003.03490.x

X. Wu, T. Sun, and J. Medina, In vitro binding of type 1-fimbriated Escherichia coli to uroplakins Ia and Ib: relation to urinary tract infections., Proceedings of the National Academy of Sciences, vol.93, issue.18, pp.9630-9635, 1996.
DOI : 10.1073/pnas.93.18.9630

Y. Wang, X. Yu, P. Silverman, R. Harris, and E. Egelman, The Structure of F-Pili, Journal of Molecular Biology, vol.385, issue.1, pp.22-29, 2009.
DOI : 10.1016/j.jmb.2008.10.054

P. Silverman, Towards a structural biology of bacterial conjugation, Molecular Microbiology, vol.23, issue.3, pp.423-429, 1997.
DOI : 10.1046/j.1365-2958.1997.2411604.x

F. Dionisio, I. Matic, M. Radman, O. Rodrigues, and F. Taddei, Plasmids spread very fast in heterogeneous bacterial communities, Genetics, vol.162, pp.1525-1532, 2002.

A. Jacobson, Role of F-pili in penetration of bacteriophage Fl, Journal of Virology, vol.10, pp.835-843, 1972.

P. Caffrey and P. Owen, Purification and N-terminal sequence of the alpha subunit of antigen 43, a unique protein complex associated with the outer membrane of Escherichia coli., Journal of Bacteriology, vol.171, issue.7, pp.3634-3640, 1989.
DOI : 10.1128/jb.171.7.3634-3640.1989

G. Anderson, J. Palermo, J. Schilling, R. Roth, and J. Heuser, Intracellular Bacterial Biofilm-Like Pods in Urinary Tract Infections, Science, vol.301, issue.5629, pp.105-107, 2003.
DOI : 10.1126/science.1084550

F. Gaboriaud, M. Gee, R. Strugnell, and J. Duval, Coupled Electrostatic, Hydrodynamic, and Mechanical Properties of Bacterial Interfaces in Aqueous Media, Langmuir, vol.24, issue.19, pp.10988-10995, 2008.
DOI : 10.1021/la800258n

H. Ohshima, Electrophoresis of soft particles, Advances in Colloid and Interface Science, vol.62, issue.2-3, pp.189-235, 1995.
DOI : 10.1016/0001-8686(95)00279-Y

J. Duval, Electrophoresis of Soft Colloids: Basic Principles and Applications, Environmental Colloids and Particles: Behaviour, Separation and Characterization, pp.315-344, 2007.
DOI : 10.1002/9780470024539.ch7

J. Duval and H. Ohshima, Electrophoresis of Diffuse Soft Particles, Langmuir, vol.22, issue.8, pp.3533-3546, 2006.
DOI : 10.1021/la0528293

A. Hyono, F. Gaboriaud, T. Mazda, Y. Takata, and H. Ohshima, Impacts of Papain and Neuraminidase Enzyme Treatment on Electrohydrodynamics and IgG-Mediated Agglutination of Type A Red Blood Cells, Langmuir, vol.25, issue.18, pp.10873-10885, 2009.
DOI : 10.1021/la900087c

URL : https://hal.archives-ouvertes.fr/hal-00414066

J. Duval and F. Gaboriaud, Progress in electrohydrodynamics of soft microbial particle interphases, Current Opinion in Colloid & Interface Science, vol.15, issue.3, pp.184-195, 2010.
DOI : 10.1016/j.cocis.2009.12.002

M. Stuart, F. Waajen, and S. Dukhin, Electrokinetic effects of adsorbed neutral polymers, Colloid & Polymer Science, vol.6, issue.5, pp.423-426, 1984.
DOI : 10.1007/BF01410263

M. Stuart and J. Mulder, Adsorbed polymers in aqueous media the relation between zeta potential, layer thickness and ionic strength, Colloids and Surfaces, vol.15, pp.49-55, 1985.
DOI : 10.1016/0166-6622(85)80054-8

U. Ascher, J. Christiansen, and R. Russell, Collocation Software for Boundary-Value ODEs, ACM Transactions on Mathematical Software, vol.7, issue.2, pp.209-222, 1981.
DOI : 10.1145/355945.355950

H. Ohshima, Electrophoretic mobility of cylindrical soft particles, Colloid & Polymer Science, vol.82, issue.5, pp.480-485, 1997.
DOI : 10.1007/s003960050107

H. Ohshima, On the electrophoretic mobility of a cylindrical soft particle, Colloid & Polymer Science, vol.279, issue.1, pp.88-91, 2001.
DOI : 10.1007/s003960000399

H. Ohshima, Electrophoretic mobility of a charged cylindrical colloidal particle covered with an ion-penetrable uncharged polymer layer, Journal of Colloid and Interface Science, vol.258, issue.2, pp.252-258, 2003.
DOI : 10.1016/S0021-9797(02)00169-8

A. Clements, F. Gaboriaud, J. Duval, J. Farn, and A. Jenney, The Major Surface-Associated Saccharides of Klebsiella pneumoniae Contribute to Host Cell Association, PLoS ONE, vol.181, issue.11, p.3817, 2008.
DOI : 10.1371/journal.pone.0003817.t002

V. Shamrock, J. Duval, G. Lindsey, and F. Gaboriaud, to the addition of Congo red, FEMS Yeast Research, vol.9, issue.3, pp.391-399, 2009.
DOI : 10.1111/j.1567-1364.2009.00495.x

URL : https://hal.archives-ouvertes.fr/hal-00414103

J. Langlet, F. Gaboriaud, C. Gantzer, and J. Duval, Impact of Chemical and Structural Anisotropy on the Electrophoretic Mobility of Spherical Soft Multilayer Particles: The Case of Bacteriophage MS2, Biophysical Journal, vol.94, issue.8, pp.3293-3312, 2008.
DOI : 10.1529/biophysj.107.115477

J. Viota, S. Mandal, A. Delgado, J. Toca-herrera, M. Möller et al., Electrophoretic characterization of gold nanoparticles functionalized with human serum albumin (HSA) and creatine, Journal of Colloid and Interface Science, vol.332, issue.1, pp.215-223, 2009.
DOI : 10.1016/j.jcis.2008.11.077

R. Lévy and M. Maaloum, Measuring the spring constant of atomic force microscope cantilevers: thermal fluctuations and other methods, Nanotechnology, vol.13, issue.1, pp.33-37, 2002.
DOI : 10.1088/0957-4484/13/1/307

V. Vadillo-rodrigues, H. Busscher, W. Norde, D. Vries, J. Dijkstra et al., Comparison of Atomic Force Microscopy Interaction Forces between Bacteria and Silicon Nitride Substrata for Three Commonly Used Immobilization Methods, Applied and Environmental Microbiology, vol.70, issue.9, pp.5441-5446, 2004.
DOI : 10.1128/AEM.70.9.5441-5446.2004

P. Polyakov, C. Soussen, J. Duan, J. Duval, and D. Brie, Automated Force Volume Image Processing for Biological Samples Francius G, PLoS One

A. Boulbitch, Deflection of a cell membrane under application of a local force, Physical Review E, vol.57, issue.2, pp.2123-2128, 1998.
DOI : 10.1103/PhysRevE.57.2123

A. Boulbitch, Deformation of the envelope of a spherical Gram-negative bacterium during the atomic force microscopic measurements, Journal of Electron Microscopy, vol.49, issue.3, pp.459-462, 2000.
DOI : 10.1093/oxfordjournals.jmicro.a023829

M. Arnoldi, M. Fritz, E. Bauerlein, M. Radmacher, and E. Sackmann, Bacterial turgor pressure can be measured by atomic force microscopy, Physical Review E, vol.62, issue.1, pp.1034-1044, 2000.
DOI : 10.1103/PhysRevE.62.1034

I. Sneddon, The relation between load and penetration in the axisymmetric boussinesq problem for a punch of arbitrary profile, International Journal of Engineering Science, vol.3, issue.1, pp.47-57, 1965.
DOI : 10.1016/0020-7225(65)90019-4

H. Hertz, Ueber die Berührung fester elastischer Körper, Journal für die Reine und angewandte Mathematik, vol.92, pp.156-171, 1881.

G. Francius, J. Hemmerle, V. Ball, P. Lavalle, and C. Picart, Stiffening of Soft Polyelectrolyte Architectures by Multilayer Capping Evidenced by Viscoelastic Analysis of AFM Indentation Measurements, The Journal of Physical Chemistry C, vol.111, issue.23, pp.8299-8306, 2007.
DOI : 10.1021/jp070435+

URL : https://hal.archives-ouvertes.fr/hal-00355313

F. Gaboriaud and Y. Dufrêne, Atomic force microscopy of microbial cells: Application to nanomechanical properties, surface forces and molecular recognition forces, Colloids and Surfaces B: Biointerfaces, vol.54, issue.1, pp.10-19, 2007.
DOI : 10.1016/j.colsurfb.2006.09.014

T. Fan and A. Fedorov, Electrohydrodynamics and Surface Force Analysis in AFM Imaging of a Charged, Deformable Biological Membrane in a Dilute Electrolyte Solution, Langmuir, vol.19, issue.26, pp.10930-10939, 2003.
DOI : 10.1021/la035663j

R. Pouttu, T. Puustinen, M. Kukkonen, R. Virkola, and M. Laurila, Functional Variability of Type 1 Fimbriae of Escherichia coli, Advances in Experimental Medicine and Biology, vol.485, pp.63-68, 2000.
DOI : 10.1007/0-306-46840-9_8

P. Silverman and M. Clarke, New insights into F-pilus structure, dynamics, and function, Integr. Biol., vol.179, issue.1, pp.25-31, 2010.
DOI : 10.1039/B917761B

A. Kajava, N. Cheng, R. Cleaver, M. Kessel, and M. Simon, Beta-helix model for the filamentous haemagglutinin adhesin of Bordetella pertussis and related bacterial secretory proteins, Molecular Microbiology, vol.260, issue.2, pp.279-292, 2001.
DOI : 10.1146/annurev.micro.40.1.661

Y. Dufrêne, Atomic force microscopy and chemical force microscopy of microbial cells, Nature Protocols, vol.456, issue.7, pp.1132-1138, 2008.
DOI : 10.1038/nprot.2008.101

A. Pelling, Y. Li, W. Shi, and J. Gimzewski, Nanoscale visualization and characterization of Myxococcus xanthus cells with atomic force microscopy, Proceedings of the National Academy of Sciences, vol.102, issue.18, pp.6484-6489, 2005.
DOI : 10.1073/pnas.0501207102

P. Schaer-zammaretti and J. Ubbink, Imaging of lactic acid bacteria with AFM???elasticity and adhesion maps and their relationship to biological and structural data, Ultramicroscopy, vol.97, issue.1-4, pp.199-208, 2003.
DOI : 10.1016/S0304-3991(03)00044-5

A. Boulbitch, B. Quinn, and D. Pink, Elasticity of the Rod-Shaped Gram-Negative Eubacteria, Physical Review Letters, vol.85, issue.24, pp.5246-5249, 2000.
DOI : 10.1103/PhysRevLett.85.5246

X. Yao, M. Jericho, D. Pink, and T. Beveridge, Thickness and elasticity of gram-negative murein sacculi measured by atomic force microscopy, Journal of Bacteriology, vol.181, pp.6865-6875, 1999.

R. Sonohara, N. Muramatsu, H. Ohshima, and T. Kondo, Difference in surface properties between Escherichia coli and Staphylococcus aureus as revealed by electrophoretic mobility measurements, Biophysical Chemistry, vol.55, issue.3, pp.273-277, 1995.
DOI : 10.1016/0301-4622(95)00004-H

J. Duval, H. Busscher, B. Van-de-belt-gritter, H. Van-der-mei, and W. Norde, Analysis of the Interfacial Properties of Fibrillated and Nonfibrillated Oral Streptococcal Strains from Electrophoretic Mobility and Titration Measurements:?? Evidence for the Shortcomings of the ???Classical Soft-Particle Approach', Langmuir, vol.21, issue.24, pp.11268-11282, 2005.
DOI : 10.1021/la051735q

R. Marquis, Salt-induced contraction of bacterial cell walls, Journal of Bacteriology, vol.95, pp.775-781, 1968.