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Helen Hansma

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Helen G Hansma
Possible origin of life between mica sheets.
Delphine Gourdon; Qi Lin; Emin Oroudjev; Helen G Hansma; Yuval Golan; Shoshana Arad; Jacob Israelachvili
Adhesion and stable low friction provided by a subnanometer-thick monolayer of a natural polysaccharide.
Matthias E Lauer; Ralf Jungmann; Johannes Kindt; Sergei Magonov; Jürgen-Hinrich Fuhrhop; Emin Oroudjev; Helen G Hansma
Formation and healing of micrometer-sized channel networks on highly mobile Au(111) surfaces.

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All Publications

2010: Helen G Hansma
Possible origin of life between mica sheets.
Journal of theoretical biology 2010;266(1):175-88.
2008: Delphine Gourdon; Qi Lin; Emin Oroudjev; Helen G Hansma; Yuval Golan; Shoshana Arad; Jacob Israelachvili
Adhesion and stable low friction provided by a subnanometer-thick monolayer of a natural polysaccharide.
Langmuir : the ACS journal of surfaces and colloids 2008;24(4):1534-40.
2007: Matthias E Lauer; Ralf Jungmann; Johannes Kindt; Sergei Magonov; Jürgen-Hinrich Fuhrhop; Emin Oroudjev; Helen G Hansma
Formation and healing of micrometer-sized channel networks on highly mobile Au(111) surfaces.
Langmuir : the ACS journal of surfaces and colloids 2007;23(10):5459-65.
2006: Tamao Hisano; Ken-Ichi Kasuya; Yoko Tezuka; Nariaki Ishii; Teruyuki Kobayashi; Mari Shiraki; Emin Oroudjev; Helen G Hansma; Tadahisa Iwata; Yoshiharu Doi; Terumi Saito; Kunio Miki
The crystal structure of polyhydroxybutyrate depolymerase from Penicillium funiculosum provides insights into the recognition and degradation of biopolyesters.
Journal of molecular biology 2006;356(4):993-1004.
2006: Georg E Fantner; Emin Oroudjev; Georg Schitter; Laura S Golde; Philipp J Thurner; Marquesa M Finch; Patricia Turner; Thomas Gutsmann; Daniel E Morse; Helen G Hansma; Paul K Hansma
Sacrificial bonds and hidden length: unraveling molecular mesostructures in tough materials.
Biophysical journal 2006;90(4):1411-8.
2004: Arkadiusz Chworos; Isil Severcan; Alexey Y Koyfman; Patrick Weinkam; Emin Oroudjev; Helen G Hansma; Luc Jaeger
Building programmable jigsaw puzzles with RNA.
Science (New York, N.Y.) 2004;306(5704):2068-72.
2004: Mark A Poggi; Elizabeth D Gadsby; Lawrence A Bottomley; William P King; Emin Oroudjev; Helen G Hansma
Scanning probe microscopy.
Analytical chemistry 2004;76(12):3429-43.
2004: Helen G Hansma; Kenichi Kasuya; Emin Oroudjev
Atomic force microscopy imaging and pulling of nucleic acids.
Current opinion in structural biology 2004;14(3):380-5.
2003: Helen G Hansma; Emin Oroudjev; Stéphanie Baudrey; Luc Jaeger
TectoRNA and 'kissing-loop' RNA: atomic force microscopy of self-assembling RNA structures.
Journal of microscopy 2003;212(Pt 3):273-9.
2003: Nathan Becker; Emin Oroudjev; Stephanie Mutz; Jason P Cleveland; Paul K Hansma; Cheryl Y Hayashi; Dmitrii E Makarov; Helen G Hansma
Molecular nanosprings in spider capture-silk threads.
Nature materials 2003;2(4):278-83.
2003: J C Sitko; E M Mateescu; Helen G Hansma
Sequence-dependent DNA condensation and the electrostatic zipper.
Biophysical journal 2003;84(1):419-31.
2002: Ulf M Lindstrom; Ravi A Chandrasekaran; Lucian Orbai; Sandra A Helquist; Gregory P Miller; Emin Oroudjev; Helen G Hansma; Eric T Kool
Artificial human telomeres from DNA nanocircle templates.
Proceedings of the National Academy of Sciences of the United States of America 2002;99(25):15953-8.
2002: James B Thompson; Helen G Hansma; Paul K Hansma; Kevin W Plaxco
The backbone conformational entropy of protein folding: experimental measures from atomic force microscopy.
Journal of molecular biology 2002;322(3):645-52.
2002: Emin Oroudjev; J Soares; S Arcdiacono; James B Thompson; S A Fossey; Helen G Hansma
Segmented nanofibers of spider dragline silk: atomic force microscopy and single-molecule force spectroscopy.
Proceedings of the National Academy of Sciences of the United States of America 2002;99 Suppl 2():6460-5.
2002: Helen G Hansma; Dennis O Clegg; Efrosini Kokkoli; Emin Oroudjev; Matthew Tirrell
Analysis of matrix dynamics by atomic force microscopy.
Methods in cell biology 2002;69():163-93.
2002: Johannes Kindt; John C Sitko; Lía I Pietrasanta; Emin Oroudjev; Nathan Becker; Mario B Viani; Helen G Hansma
Methods for biological probe microscopy in aqueous fluids.
Methods in cell biology 2002;68():213-29.
2001: James B Thompson; Johannes Kindt; B Drake; Helen G Hansma; Daniel E Morse; Paul K Hansma
Bone indentation recovery time correlates with bond reforming time.
Nature 2001;414(6865):773-6.
2001: Helen G Hansma
Surface biology of DNA by atomic force microscopy.
Annual review of physical chemistry 2001;52():71-92.
2000: M B Viani; Lía I Pietrasanta; James B Thompson; A Chand; Ille C Gebeshuber; Johannes Kindt; M Richter; Helen G Hansma; Paul K Hansma
Probing protein-protein interactions in real time.
Nature structural biology 2000;7(8):644-7.
2000: C H Chen; Helen G Hansma
Basement membrane macromolecules: insights from atomic force microscopy.
Journal of structural biology 2000;131(1):44-55.
2000: ID Auerbach; C Sorensen; Helen G Hansma; Patricia A Holden
Physical morphology and surface properties of unsaturated Pseudomonas putida biofilms.
Journal of bacteriology 2000;182(13):3809-15.
2000: Helen G Hansma; Lía I Pietrasanta; ID Auerbach; C Sorenson; R Golan; Patricia A Holden
Probing biopolymers with the atomic force microscope: a review.
Journal of biomaterials science. Polymer edition 2000;11(7):675-83.
1999: Helen G Hansma
Varieties of imaging with scanning probe microscopes.
Proceedings of the National Academy of Sciences of the United States of America 1999;96(26):14678-80.
1999: R Golan; Lía I Pietrasanta; W Hsieh; Helen G Hansma
DNA toroids: stages in condensation.
Biochemistry 1999;38(42):14069-76.
1999: Helen G Hansma; R Golan; W Hsieh; SL Daubendiek; Eric T Kool
Polymerase activities and RNA structures in the atomic force microscope.
Journal of structural biology 1999;127(3):240-7.
1999: Martin Guthold; X Zhu; Claudio Rivetti; G Yang; Neil H Thomson; Sandor Kasas; Helen G Hansma; B Smith; Paul K Hansma; Carlos Bustamante
Direct observation of one-dimensional diffusion and transcription by Escherichia coli RNA polymerase.
Biophysical journal 1999;77(4):2284-94.
1999: Lía I Pietrasanta; D Thrower; W Hsieh; S Rao; Olaf Stemmann; Johannes Lechner; John Carbon; Helen G Hansma
Probing the Saccharomyces cerevisiae centromeric DNA (CEN DNA)-binding factor 3 (CBF3) kinetochore complex by using atomic force microscopy.
Proceedings of the National Academy of Sciences of the United States of America 1999;96(7):3757-62.
1998: Helen G Hansma; Lía I Pietrasanta
Atomic force microscopy and other scanning probe microscopies.
Current opinion in chemical biology 1998;2(5):579-84.
1998: C H Chen; Dennis O Clegg; Helen G Hansma
Structures and dynamic motion of laminin-1 as observed by atomic force microscopy.
Biochemistry 1998;37(22):8262-7.
1998: Helen G Hansma; R Golan; W Hsieh; C P Lollo; P Mullen-Ley; DY Kwoh
DNA condensation for gene therapy as monitored by atomic force microscopy.
Nucleic acids research 1998;26(10):2481-7.
1998: R A García; DE Laney; Stanley M Parsons; Helen G Hansma
Substructure and responses of cholinergic synaptic vesicles in the atomic force microscope.
Journal of neuroscience research 1998;52(3):350-5.
1997: M Argaman; R Golan; Neil H Thomson; Helen G Hansma
Phase imaging of moving DNA molecules and DNA molecules replicated in the atomic force microscope.
Nucleic acids research 1997;25(21):4379-84.
1997: Helen G Hansma; K J Kim; DE Laney; R A Garcia; M Argaman; M J Allen; Stanley M Parsons
Properties of biomolecules measured from atomic force microscope images: a review.
Journal of structural biology 1997;119(2):99-108.
1997: DE Laney; R A Garcia; Stanley M Parsons; Helen G Hansma
Changes in the elastic properties of cholinergic synaptic vesicles as measured by atomic force microscopy.
Biophysical journal 1997;72(2 Pt 1):806-13.
1997: Sandor Kasas; Neil H Thomson; B L Smith; Helen G Hansma; X Zhu; Martin Guthold; Carlos Bustamante; E T Kool; M Kashlev; Paul K Hansma
Escherichia coli RNA polymerase activity observed using atomic force microscopy.
Biochemistry 1997;36(3):461-8.
1996: Helen G Hansma; D E Laney
DNA binding to mica correlates with cationic radius: assay by atomic force microscopy.
Biophysical journal 1996;70(4):1933-9.
1996: Helen G Hansma; I Revenko; K Kim; D E Laney
Atomic force microscopy of long and short double-stranded, single-stranded and triple-stranded nucleic acids.
Nucleic acids research 1996;24(4):713-20.
1995: Helen G Hansma; D E Laney; M Bezanilla; Robert L Sinsheimer; Paul K Hansma
Applications for atomic force microscopy of DNA.
Biophysical journal 1995;68(5):1672-7.
1995: Helen G Hansma
Polysaccharide helices in the atomic force microscope.
Biophysical journal 1995;68(1):3-4.
1994: Martin Guthold; M Bezanilla; Dorothy A Erie; B Jenkins; Helen G Hansma; Carlos Bustamante
Following the assembly of RNA polymerase-DNA complexes in aqueous solutions with the scanning force microscope.
Proceedings of the National Academy of Sciences of the United States of America 1994;91(26):12927-31.
1994: M Bezanilla; B Drake; Evgeny Nudler; Mikhail Kashlev; Paul K Hansma; Helen G Hansma
Motion and enzymatic degradation of DNA in the atomic force microscope.
Biophysical journal 1994;67(6):2454-9.
1994: Manfred Radmacher; M Fritz; Helen G Hansma; Paul K Hansma
Direct observation of enzyme activity with the atomic force microscope.
Science (New York, N.Y.) 1994;265(5178):1577-9.
1994: Helen G Hansma; K A Browne; M Bezanilla; Thomas C Bruice
Bending and straightening of DNA induced by the same ligand: characterization with the atomic force microscope.
Biochemistry 1994;33(28):8436-41.
1994: Manfred Radmacher; J P Cleveland; M Fritz; Helen G Hansma; Paul K Hansma
Mapping interaction forces with the atomic force microscope.
Biophysical journal 1994;66(6):2159-65.
1994: I A Mastrangelo; M Bezanilla; Paul K Hansma; P V Hough; Helen G Hansma
Structures of large T antigen at the origin of SV40 DNA replication by atomic force microscopy.
Biophysical journal 1994;66(2 Pt 1):293-8.
1994: Helen G Hansma; Jan H Hoh
Biomolecular imaging with the atomic force microscope.
Annual review of biophysics and biomolecular structure 1994;23():115-39.
1993: Helen G Hansma; Robert L Sinsheimer; J Groppe; Thomas C Bruice; V Elings; G Gurley; M Bezanilla; I A Mastrangelo; P V Hough; Paul K Hansma
Recent advances in atomic force microscopy of DNA.
Scanning 1993;15(5):296-9.
1993: M N Murray; Helen G Hansma; M Bezanilla; T Sano; D F Ogletree; W Kolbe; C L Smith; C R Cantor; S Spengler; Paul K Hansma
Atomic force microscopy of biochemically tagged DNA.
Proceedings of the National Academy of Sciences of the United States of America 1993;90(9):3811-4.
1993: Helen G Hansma; M Bezanilla; Fredderic Zenhausern; M Adrian; Robert L Sinsheimer
Atomic force microscopy of DNA in aqueous solutions.
Nucleic acids research 1993;21(3):505-12.
1992: M Q Li; Helen G Hansma; J Vesenka; G Kelderman; Paul K Hansma
Atomic force microscopy of uncoated plasmid DNA: nanometer resolution with only nanogram amounts of sample.
Journal of biomolecular structure & dynamics 1992;10(3):607-17.
1992: Helen G Hansma; Robert L Sinsheimer; M Q Li; Paul K Hansma
Atomic force microscopy of single- and double-stranded DNA.
Nucleic acids research 1992;20(14):3585-90.
1992: Helen G Hansma; J Vesenka; C Siegerist; G Kelderman; H Morrett; Robert L Sinsheimer; V Elings; Carlos Bustamante; Paul K Hansma
Reproducible imaging and dissection of plasmid DNA under liquid with the atomic force microscope.
Science (New York, N.Y.) 1992;256(5060):1180-4.
1991: Helen G Hansma; A L Weisenhorn; A B Edmundson; H E Gaub; Paul K Hansma
Atomic force microscopy: seeing molecules of lipid and immunoglobulin.
Clinical chemistry 1991;37(9):1497-501.
1990: A L Weisenhorn; H E Gaub; Helen G Hansma; Robert L Sinsheimer; G L Kelderman; Paul K Hansma
Imaging single-stranded DNA, antigen-antibody reaction and polymerized Langmuir-Blodgett films with an atomic force microscope.
Scanning microscopy 1990;4(3):511-6.
1989: B Drake; C B Prater; A L Weisenhorn; S A Gould; T R Albrecht; C F Quate; David S Cannell; Helen G Hansma; Paul K Hansma
Imaging crystals, polymers, and processes in water with the atomic force microscope.
Science (New York, N.Y.) 1989;243(4898):1586-9.