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Items: 1 to 50 of 100

1.

Non-contact monitoring of extra-cellular field potentials with a multi-electrode array.

Sharf T, Hansma PK, Hari MA, Kosik KS.

Lab Chip. 2019 Apr 9;19(8):1448-1457. doi: 10.1039/c8lc00984h.

PMID:
30887972
2.

Action potential propagation recorded from single axonal arbors using multielectrode arrays.

Tovar KR, Bridges DC, Wu B, Randall C, Audouard M, Jang J, Hansma PK, Kosik KS.

J Neurophysiol. 2018 Jul 1;120(1):306-320. doi: 10.1152/jn.00659.2017. Epub 2018 Apr 11.

3.

MEA Viewer: A high-performance interactive application for visualizing electrophysiological data.

Bridges DC, Tovar KR, Wu B, Hansma PK, Kosik KS.

PLoS One. 2018 Feb 9;13(2):e0192477. doi: 10.1371/journal.pone.0192477. eCollection 2018.

4.

Effect of various testing conditions on results for a handheld reference point indentation instrument in horses.

Lescun TB, Hoffseth K, Yang HT, Hansma PK, Kopeikin HS, Chandrasekar S.

Am J Vet Res. 2016 Jan;77(1):39-49. doi: 10.2460/ajvr.77.1.39.

PMID:
26709935
5.

Bone Tissue Properties Measurement by Reference Point Indentation in Glucocorticoid-Induced Osteoporosis.

Mellibovsky L, Prieto-Alhambra D, Mellibovsky F, Güerri-Fernández R, Nogués X, Randall C, Hansma PK, Díez-Perez A.

J Bone Miner Res. 2015 Sep;30(9):1651-6. doi: 10.1002/jbmr.2497. Epub 2015 Jun 11.

6.

A new ion sensing deep atomic force microscope.

Drake B, Randall C, Bridges D, Hansma PK.

Rev Sci Instrum. 2014 Aug;85(8):083706. doi: 10.1063/1.4893640.

7.

Deep atomic force microscopy.

Barnard H, Drake B, Randall C, Hansma PK.

Rev Sci Instrum. 2013 Dec;84(12):123701. doi: 10.1063/1.4821145.

8.

Applications of a New Handheld Reference Point Indentation Instrument Measuring Bone Material Strength.

Randall C, Bridges D, Guerri R, Nogues X, Puig L, Torres E, Mellibovsky L, Hoffseth K, Stalbaum T, Srikanth A, Weaver JC, Rosen S, Barnard H, Brimer D, Proctor A, Candy J, Saldana C, Chandrasekar S, Lescun T, Nielson CM, Orwoll E, Herthel D, Kopeikin H, Yang HT, Farr JN, McCready L, Khosla S, Diez-Perez A, Hansma PK.

J Med Device. 2013 Dec;7(4):410051-410056. Epub 2013 Sep 24.

9.

Microindentation for in vivo measurement of bone tissue material properties in atypical femoral fracture patients and controls.

Güerri-Fernández RC, Nogués X, Quesada Gómez JM, Torres Del Pliego E, Puig L, García-Giralt N, Yoskovitz G, Mellibovsky L, Hansma PK, Díez-Pérez A.

J Bone Miner Res. 2013 Jan;28(1):162-8. doi: 10.1002/jbmr.1731.

10.

A new device for performing reference point indentation without a reference probe.

Bridges D, Randall C, Hansma PK.

Rev Sci Instrum. 2012 Apr;83(4):044301. doi: 10.1063/1.3693085.

11.

The long range voice coil atomic force microscope.

Barnard H, Randall C, Bridges D, Hansma PK.

Rev Sci Instrum. 2012 Feb;83(2):023705. doi: 10.1063/1.3683235.

12.

Local tissue properties of human osteoarthritic cartilage correlate with magnetic resonance T(1) rho relaxation times.

Tang SY, Souza RB, Ries M, Hansma PK, Alliston T, Li X.

J Orthop Res. 2011 Sep;29(9):1312-9. doi: 10.1002/jor.21381. Epub 2011 Mar 28.

13.

Local strain and damage mapping in single trabeculae during three-point bending tests.

Jungmann R, Szabo ME, Schitter G, Tang RY, Vashishth D, Hansma PK, Thurner PJ.

J Mech Behav Biomed Mater. 2011 May;4(4):523-34. doi: 10.1016/j.jmbbm.2010.12.009. Epub 2010 Dec 24.

14.

Microindentation for in vivo measurement of bone tissue mechanical properties in humans.

Diez-Perez A, Güerri R, Nogues X, Cáceres E, Peña MJ, Mellibovsky L, Randall C, Bridges D, Weaver JC, Proctor A, Brimer D, Koester KJ, Ritchie RO, Hansma PK.

J Bone Miner Res. 2010 Aug;25(8):1877-85. doi: 10.1002/jbmr.73.

15.

Mechanical profiling of intervertebral discs.

Schultz DS, Rodriguez AG, Hansma PK, Lotz JC.

J Biomech. 2009 May 29;42(8):1154-7. doi: 10.1016/j.jbiomech.2009.02.013. Epub 2009 Apr 3.

16.

Molecular energy dissipation in nanoscale networks of Dentin Matrix Protein 1 is strongly dependent on ion valence.

Adams J, Fantner GE, Fisher LW, Hansma PK.

Nanotechnology. 2008 Sep 24;19(38):384008. doi: 10.1088/0957-4484/19/38/384008.

17.

Effect of Ca2+ ions on the adhesion and mechanical properties of adsorbed layers of human osteopontin.

Zappone B, Thurner PJ, Adams J, Fantner GE, Hansma PK.

Biophys J. 2008 Sep 15;95(6):2939-50. doi: 10.1529/biophysj.108.135889. Epub 2008 Jun 27.

18.

Nanoscale ion mediated networks in bone: osteopontin can repeatedly dissipate large amounts of energy.

Fantner GE, Adams J, Turner P, Thurner PJ, Fisher LW, Hansma PK.

Nano Lett. 2007 Aug;7(8):2491-8. Epub 2007 Jul 24.

PMID:
17645366
19.

In situ observation of fluoride-ion-induced hydroxyapatite-collagen detachment on bone fracture surfaces by atomic force microscopy.

Kindt JH, Thurner PJ, Lauer ME, Bosma BL, Schitter G, Fantner GE, Izumi M, Weaver JC, Morse DE, Hansma PK.

Nanotechnology. 2007 Apr 4;18(13):135102. doi: 10.1088/0957-4484/18/13/135102. Epub 2007 Feb 28.

PMID:
21730373
20.

The role of calcium and magnesium in the concrete tubes of the sandcastle worm.

Sun C, Fantner GE, Adams J, Hansma PK, Waite JH.

J Exp Biol. 2007 Apr;210(Pt 8):1481-8.

21.

Hierarchical assembly of the siliceous skeletal lattice of the hexactinellid sponge Euplectella aspergillum.

Weaver JC, Aizenberg J, Fantner GE, Kisailus D, Woesz A, Allen P, Fields K, Porter MJ, Zok FW, Hansma PK, Fratzl P, Morse DE.

J Struct Biol. 2007 Apr;158(1):93-106. Epub 2006 Nov 10.

PMID:
17175169
22.

Applied physics. High-speed atomic force microscopy.

Hansma PK, Schitter G, Fantner GE, Prater C.

Science. 2006 Oct 27;314(5799):601-2. No abstract available.

PMID:
17068247
23.

Components for high speed atomic force microscopy.

Fantner GE, Schitter G, Kindt JH, Ivanov T, Ivanova K, Patel R, Holten-Andersen N, Adams J, Thurner PJ, Rangelow IW, Hansma PK.

Ultramicroscopy. 2006 Jun-Jul;106(8-9):881-7. Epub 2006 Apr 27.

PMID:
16730410
24.

Molecular mechanics of single molecules.

Hansma PK.

Structure. 2006 Mar;14(3):390-1. No abstract available.

25.

Sacrificial bonds in the interfibrillar matrix of bone.

Hansma PK, Fantner GE, Kindt JH, Thurner PJ, Schitter G, Turner PJ, Udwin SF, Finch MM.

J Musculoskelet Neuronal Interact. 2005 Oct-Dec;5(4):313-5. Review. No abstract available.

26.

Sacrificial bonds and hidden length: unraveling molecular mesostructures in tough materials.

Fantner GE, Oroudjev E, Schitter G, Golde LS, Thurner P, Finch MM, Turner P, Gutsmann T, Morse DE, Hansma H, Hansma PK.

Biophys J. 2006 Feb 15;90(4):1411-8. Epub 2005 Dec 2.

27.

Sacrificial bonds and hidden length dissipate energy as mineralized fibrils separate during bone fracture.

Fantner GE, Hassenkam T, Kindt JH, Weaver JC, Birkedal H, Pechenik L, Cutroni JA, Cidade GA, Stucky GD, Morse DE, Hansma PK.

Nat Mater. 2005 Aug;4(8):612-6. Epub 2005 Jul 17.

PMID:
16025123
28.

Sacrificial bonds in polymer brushes from rat tail tendon functioning as nanoscale velcro.

Gutsmann T, Hassenkam T, Cutroni JA, Hansma PK.

Biophys J. 2005 Jul;89(1):536-42. Epub 2005 May 6.

29.

Influence of the degradation of the organic matrix on the microscopic fracture behavior of trabecular bone.

Fantner GE, Birkedal H, Kindt JH, Hassenkam T, Weaver JC, Cutroni JA, Bosma BL, Bawazer L, Finch MM, Cidade GA, Morse DE, Stucky GD, Hansma PK.

Bone. 2004 Nov;35(5):1013-22.

PMID:
15542025
30.

Rigid design of fast scanning probe microscopes using finite element analysis.

Kindt JH, Fantner GE, Cutroni JA, Hansma PK.

Ultramicroscopy. 2004 Aug;100(3-4):259-65.

PMID:
15231318
31.

High-resolution AFM imaging of intact and fractured trabecular bone.

Hassenkam T, Fantner GE, Cutroni JA, Weaver JC, Morse DE, Hansma PK.

Bone. 2004 Jul;35(1):4-10.

PMID:
15207735
32.

Force spectroscopy of collagen fibers to investigate their mechanical properties and structural organization.

Gutsmann T, Fantner GE, Kindt JH, Venturoni M, Danielsen S, Hansma PK.

Biophys J. 2004 May;86(5):3186-93.

33.

Nanostructural features of demosponge biosilica.

Weaver JC, Pietrasanta LI, Hedin N, Chmelka BF, Hansma PK, Morse DE.

J Struct Biol. 2003 Dec;144(3):271-81.

PMID:
14643196
34.

Atomic force microscopy study of living diatoms in ambient conditions.

Gebeshuber IC, Kindt JH, Thompson JB, Del Amo Y, Stachelberger H, Brzezinski MA, Stucky GD, Morse DE, Hansma PK.

J Microsc. 2003 Dec;212(Pt 3):292-9. Erratum in: J Microsc. 2004 Apr;214(Pt 1):101.

35.

Molecular nanosprings in spider capture-silk threads.

Becker N, Oroudjev E, Mutz S, Cleveland JP, Hansma PK, Hayashi CY, Makarov DE, Hansma HG.

Nat Mater. 2003 Apr;2(4):278-83.

PMID:
12690403
36.

Evidence that collagen fibrils in tendons are inhomogeneously structured in a tubelike manner.

Gutsmann T, Fantner GE, Venturoni M, Ekani-Nkodo A, Thompson JB, Kindt JH, Morse DE, Fygenson DK, Hansma PK.

Biophys J. 2003 Apr;84(4):2593-8.

37.

Investigations into the polymorphism of rat tail tendon fibrils using atomic force microscopy.

Venturoni M, Gutsmann T, Fantner GE, Kindt JH, Hansma PK.

Biochem Biophys Res Commun. 2003 Apr 4;303(2):508-13.

PMID:
12659847
38.

The backbone conformational entropy of protein folding: experimental measures from atomic force microscopy.

Thompson JB, Hansma HG, Hansma PK, Plaxco KW.

J Mol Biol. 2002 Sep 20;322(3):645-52.

PMID:
12225756
39.

Bone indentation recovery time correlates with bond reforming time.

Thompson JB, Kindt JH, Drake B, Hansma HG, Morse DE, Hansma PK.

Nature. 2001 Dec 13;414(6865):773-6.

PMID:
11742405
40.

Micromechanical and structural properties of a pennate diatom investigated by atomic force microscopy.

Almqvist N, Delamo Y, Smith BL, Thomson NH, Bartholdson A, Lal R, Brzezinski M, Hansma PK.

J Microsc. 2001 Jun;202(Pt 3):518-32.

41.

Stepwise unfolding of titin under force-clamp atomic force microscopy.

Oberhauser AF, Hansma PK, Carrion-Vazquez M, Fernandez JM.

Proc Natl Acad Sci U S A. 2001 Jan 16;98(2):468-72. Epub 2001 Jan 9.

42.

Direct observation of the transition from calcite to aragonite growth as induced by abalone shell proteins.

Thompson JB, Paloczi GT, Kindt JH, Michenfelder M, Smith BL, Stucky G, Morse DE, Hansma PK.

Biophys J. 2000 Dec;79(6):3307-12.

43.

Probing protein-protein interactions in real time.

Viani MB, Pietrasanta LI, Thompson JB, Chand A, Gebeshuber IC, Kindt JH, Richter M, Hansma HG, Hansma PK.

Nat Struct Biol. 2000 Aug;7(8):644-7.

PMID:
10932247
44.

Imaging microtubules and kinesin decorated microtubules using tapping mode atomic force microscopy in fluids.

Kacher CM, Weiss IM, Stewart RJ, Schmidt CF, Hansma PK, Radmacher M, Fritz M.

Eur Biophys J. 2000;28(8):611-20.

PMID:
10663528
45.

Recent highlights from atomic force microscopy of DNA.

Hansma HG, Pietrasanta LI, Golan R, Sitko JC, Viani MB, Paloczi GT, Smith BL, Thrower D, Hansma PK.

J Biomol Struct Dyn. 2000;17 Suppl 1:271-5.

PMID:
22607434
46.

Direct observation of one-dimensional diffusion and transcription by Escherichia coli RNA polymerase.

Guthold M, Zhu X, Rivetti C, Yang G, Thomson NH, Kasas S, Hansma HG, Smith B, Hansma PK, Bustamante C.

Biophys J. 1999 Oct;77(4):2284-94.

47.

Oriented, active Escherichia coli RNA polymerase: an atomic force microscope study.

Thomson NH, Smith BL, Almqvist N, Schmitt L, Kashlev M, Kool ET, Hansma PK.

Biophys J. 1999 Feb;76(2):1024-33.

48.

Molecular cloning and characterization of lustrin A, a matrix protein from shell and pearl nacre of Haliotis rufescens.

Shen X, Belcher AM, Hansma PK, Stucky GD, Morse DE.

J Biol Chem. 1997 Dec 19;272(51):32472-81.

49.

Visualization of poly(A)-binding protein complex formation with poly(A) RNA using atomic force microscopy.

Smith BL, Gallie DR, Le H, Hansma PK.

J Struct Biol. 1997 Jul;119(2):109-17.

PMID:
9245750
50.

Modification of calcite crystal growth by abalone shell proteins: an atomic force microscope study.

Walters DA, Smith BL, Belcher AM, Paloczi GT, Stucky GD, Morse DE, Hansma PK.

Biophys J. 1997 Mar;72(3):1425-33.

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