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    Ritchie, Robert

    TitleMaterials Sci/Engr Sr Faculty
    SchoolLawrence Berkeley National Lab
    DepartmentMaterials Sciences
    Address1 Cyclotron Road
    Berkeley CA 94720
    Phone510/486-5798
    vCardDownload vCard

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      Publications listed below are automatically derived from MEDLINE/PubMed and other sources, which might result in incorrect or missing publications. Researchers can login to make corrections and additions, or contact us for help.
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      1. Liu D, Gludovatz B, Barnard HS, Kuball M, Ritchie R. Damage tolerance of nuclear graphite at elevated temperatures. Nat Commun. 2017 Jun 30; 8:15942. PMID: 28665405.
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      2. Gludovatz B, Walsh F, Zimmermann EA, Naleway SE, Ritchie R, Kruzic JJ. Multiscale structure and damage tolerance of coconut shells. J Mech Behav Biomed Mater. 2017 May 17. PMID: 28550972.
        View in: PubMed
      3. Fowler TW, Acevedo C, Mazur CM, Hall-Glenn F, Fields AJ, Bale HA, Ritchie R, Lotz JC, Vail TP, Alliston T. Glucocorticoid suppression of osteocyte perilacunar remodeling is associated with subchondral bone degeneration in osteonecrosis. Sci Rep. 2017 Mar 22; 7:44618. PMID: 28327602.
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      4. Zhang Z, Sheng H, Wang Z, Gludovatz B, Zhang Z, George EP, Yu Q, Mao SX, Ritchie R. Dislocation mechanisms and 3D twin architectures generate exceptional strength-ductility-toughness combination in CrCoNi medium-entropy alloy. Nat Commun. 2017 Feb 20; 8:14390. PMID: 28218267.
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      5. Koc MA, Raja SN, Hanson LA, Nguyen SC, Borys NJ, Powers AS, Wu S, Takano K, Swabeck JK, Olshansky JH, Lin L, Ritchie R, Alivisatos AP. Characterizing Photon Reabsorption in Quantum Dot-Polymer Composites for Use as Displacement Sensors. ACS Nano. 2017 Feb 28; 11(2):2075-2084. PMID: 28110520.
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      6. Raja SN, Bekenstein Y, Koc MA, Fischer S, Zhang D, Lin L, Ritchie R, Yang P, Alivisatos AP. Encapsulation of Perovskite Nanocrystals into Macroscale Polymer Matrices: Enhanced Stability and Polarization. ACS Appl Mater Interfaces. 2016 Dec 19. PMID: 27991752.
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      7. Ding J, Cheng YQ, Sheng H, Asta M, Ritchie R, Ma E. Universal structural parameter to quantitatively predict metallic glass properties. Nat Commun. 2016 Dec 12; 7:13733. PMID: 27941922.
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      8. Sherman VR, Quan H, Yang W, Ritchie R, Meyers MA. A comparative study of piscine defense: The scales of Arapaima gigas, Latimeria chalumnae and Atractosteus spatula. J Mech Behav Biomed Mater. 2016 Oct 4. PMID: 27816416.
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      9. Wilkerson RP, Gludovatz B, Watts J, Tomsia AP, Hilmas GE, Ritchie R. A Novel Approach to Developing Biomimetic ("Nacre-Like") Metal-Compliant-Phase (Nickel-Alumina) Ceramics through Coextrusion. Adv Mater. 2016 Dec; 28(45):10061-10067. PMID: 27690374.
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      10. Liu Z, Zhu Y, Jiao D, Weng Z, Zhang Z, Ritchie R. Enhanced protective role in materials with gradient structural orientations: Lessons from Nature. Acta Biomater. 2016 Oct 15; 44:31-40. PMID: 27503833.
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      11. Weng ZY, Liu ZQ, Ritchie R, Jiao D, Li DS, Wu HL, Deng LH, Zhang ZF. Giant panda?s tooth enamel: Structure, mechanical behavior and toughening mechanisms under indentation. J Mech Behav Biomed Mater. 2016 Dec; 64:125-38. PMID: 27498423.
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      12. Raja SN, Zherebetskyy D, Wu S, Ercius P, Powers A, Olson AC, Du DX, Lin L, Govindjee S, Wang LW, Xu T, Alivisatos AP, Ritchie R. Mechanisms of Local Stress Sensing in Multifunctional Polymer Films Using Fluorescent Tetrapod Nanocrystals. Nano Lett. 2016 Aug 10; 16(8):5060-7. PMID: 27411026.
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      13. Shi F, Song Z, Ross PN, Somorjai GA, Ritchie R, Komvopoulos K. Failure mechanisms of single-crystal silicon electrodes in lithium-ion batteries. Nat Commun. 2016; 7:11886. PMID: 27297565.
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      14. Jáuregui EJ, Akil O, Acevedo C, Hall-Glenn F, Tsai BS, Bale HA, Liebenberg E, Humphrey MB, Ritchie R, Lustig LR, Alliston T. Parallel mechanisms suppress cochlear bone remodeling to protect hearing. Bone. 2016 Aug; 89:7-15. PMID: 27085457.
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      15. Zimmermann EA, Schaible E, Gludovatz B, Schmidt FN, Riedel C, Krause M, Vettorazzi E, Acevedo C, Hahn M, Püschel K, Tang S, Amling M, Ritchie R, Busse B. Intrinsic mechanical behavior of femoral cortical bone in young, osteoporotic and bisphosphonate-treated individuals in low- and high energy fracture conditions. Sci Rep. 2016; 6:21072. PMID: 26879146.
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      16. Ansari F, Gludovatz B, Kozak A, Ritchie R, Pruitt LA. Notch fatigue of ultrahigh molecular weight polyethylene (UHMWPE) used in total joint replacements. J Mech Behav Biomed Mater. 2016 Jul; 60:267-79. PMID: 26919563.
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      17. Gludovatz B, Hohenwarter A, Thurston KV, Bei H, Wu Z, George EP, Ritchie R. Exceptional damage-tolerance of a medium-entropy alloy CrCoNi at cryogenic temperatures. Nat Commun. 2016; 7:10602. PMID: 26830651.
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      18. Shekhawat A, Ritchie R. Toughness and strength of nanocrystalline graphene. Nat Commun. 2016; 7:10546. PMID: 26817712.
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      19. Bai H, Chen Y, Delattre B, Tomsia AP, Ritchie R. Bioinspired large-scale aligned porous materials assembled with dual temperature gradients. Sci Adv. 2015 Dec; 1(11):e1500849. PMID: 26824062.
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      20. Zhang Z, Mao MM, Wang J, Gludovatz B, Zhang Z, Mao SX, George EP, Yu Q, Ritchie R. Nanoscale origins of the damage tolerance of the high-entropy alloy CrMnFeCoNi. Nat Commun. 2015; 6:10143. PMID: 26647978.
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      21. Ding J, Ma E, Asta M, Ritchie R. Second-Nearest-Neighbor Correlations from Connection of Atomic Packing Motifs in Metallic Glasses and Liquids. Sci Rep. 2015; 5:17429. PMID: 26616762.
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      22. Bai H, Walsh F, Gludovatz B, Delattre B, Huang C, Chen Y, Tomsia AP, Ritchie R. Bioinspired Hydroxyapatite/Poly(methyl methacrylate) Composite with a Nacre-Mimetic Architecture by a Bidirectional Freezing Method. Adv Mater. 2016 Jan; 28(1):50-6. PMID: 26554760.
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      23. Zimmermann EA, Busse B, Ritchie R. The fracture mechanics of human bone: influence of disease and treatment. Bonekey Rep. 2015; 4:743. PMID: 26380080.
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      24. Acevedo C, Bale H, Gludovatz B, Wat A, Tang SY, Wang M, Busse B, Zimmermann EA, Schaible E, Allen MR, Burr DB, Ritchie R. Alendronate treatment alters bone tissues at multiple structural levels in healthy canine cortical bone. Bone. 2015 Dec; 81:352-63. PMID: 26253333.
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      25. Dai W, Zhang H, Zhong ZA, Jiang L, Chen H, Lay YA, Kot A, Ritchie R, Lane NE, Yao W. ß-Ecdysone Augments Peak Bone Mass in Mice of Both Sexes. Clin Orthop Relat Res. 2015 Aug; 473(8):2495-504. PMID: 25822452.
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      26. Raja SN, Olson AC, Limaye A, Thorkelsson K, Luong A, Lin L, Ritchie R, Xu T, Alivisatos AP. Influence of three-dimensional nanoparticle branching on the Young's modulus of nanocomposites: Effect of interface orientation. Proc Natl Acad Sci U S A. 2015 May 26; 112(21):6533-8. PMID: 25971729.
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      27. Zimmermann EA, Ritchie R. Bone as a Structural Material. Adv Healthc Mater. 2015 Jun; 4(9):1287-304. PMID: 25865873.
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      28. Yang W, Sherman VR, Gludovatz B, Schaible E, Stewart P, Ritchie R, Meyers MA. On the tear resistance of skin. Nat Commun. 2015; 6:6649. PMID: 25812485.
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      29. Zimmermann EA, Köhne T, Bale HA, Panganiban B, Gludovatz B, Zustin J, Hahn M, Amling M, Ritchie R, Busse B. Modifications to Nano- and Microstructural Quality and the Effects on Mechanical Integrity in Paget's Disease of Bone. J Bone Miner Res. 2015 Feb; 30(2):264-73. PMID: 25112610.
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      30. Milovanovic P, Zimmermann EA, Riedel C, Scheidt AV, Herzog L, Krause M, Djonic D, Djuric M, Püschel K, Amling M, Ritchie R, Busse B. Multi-level characterization of human femoral cortices and their underlying osteocyte network reveal trends in quality of young, aged, osteoporotic and antiresorptive-treated bone. Biomaterials. 2015 Mar; 45:46-55. PMID: 25662494.
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      31. Dai W, Jiang L, Lay YA, Chen H, Jin G, Zhang H, Kot A, Ritchie R, Lane NE, Yao W. Prevention of glucocorticoid induced bone changes with beta-ecdysone. Bone. 2015 May; 74:48-57. PMID: 25585248.
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      32. Wegst UG, Bai H, Saiz E, Tomsia AP, Ritchie R. Bioinspired structural materials. Nat Mater. 2015 Jan; 14(1):23-36. PMID: 25344782.
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      33. Gludovatz B, Hohenwarter A, Catoor D, Chang EH, George EP, Ritchie R. A fracture-resistant high-entropy alloy for cryogenic applications. Science. 2014 Sep 5; 345(6201):1153-8. PMID: 25190791.
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      34. Haboub A, Bale HA, Nasiatka JR, Cox BN, Marshall DB, Ritchie R, MacDowell AA. Tensile testing of materials at high temperatures above 1700?°C with in situ synchrotron X-ray micro-tomography. Rev Sci Instrum. 2014 Aug; 85(8):083702. PMID: 25173271.
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      35. Amugongo SK, Yao W, Jia J, Dai W, Lay YA, Jiang L, Harvey D, Zimmermann EA, Schaible E, Dave N, Ritchie R, Kimmel DB, Lane NE. Effect of sequential treatments with alendronate, parathyroid hormone (1-34) and raloxifene on cortical bone mass and strength in ovariectomized rats. Bone. 2014 Oct; 67:257-68. PMID: 25016965.
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      36. Carriero A, Zimmermann EA, Shefelbine SJ, Ritchie R. A methodology for the investigation of toughness and crack propagation in mouse bone. J Mech Behav Biomed Mater. 2014 Nov; 39:38-47. PMID: 25084121.
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      37. Yang W, Sherman VR, Gludovatz B, Mackey M, Zimmermann EA, Chang EH, Schaible E, Qin Z, Buehler MJ, Ritchie R, Meyers MA. Protective role of Arapaima gigas fish scales: Structure and mechanical behavior. Acta Biomater. 2014 Aug; 10(8):3599-614. PMID: 24816264.
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      38. Ritchie R. Natural materials: Armoured oyster shells. Nat Mater. 2014 Apr 22; 13(5):435-7. PMID: 24751771.
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      39. Zimmermann EA, Gludovatz B, Schaible E, Busse B, Ritchie R. Fracture resistance of human cortical bone across multiple length-scales at physiological strain rates. Biomaterials. 2014 Jul; 35(21):5472-81. PMID: 24731707.
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      40. Amugongo SK, Yao W, Jia J, Lay YA, Dai W, Jiang L, Walsh D, Li CS, Dave NK, Olivera D, Panganiban B, Ritchie R, Lane NE. Effects of sequential osteoporosis treatments on trabecular bone in adult rats with low bone mass. Osteoporos Int. 2014 Jun; 25(6):1735-50. PMID: 24722767.
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      41. Delattre B, Bai H, Ritchie R, De Coninck J, Tomsia AP. Unidirectional Freezing of Ceramic Suspensions: In Situ X-ray Investigation of the Effects of Additives. ACS Appl Mater Interfaces. 2014 Jan 8; 6(1):159-66. PMID: 24341868.
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      42. Gludovatz B, Demetriou MD, Floyd M, Hohenwarter A, Johnson WL, Ritchie R. Enhanced fatigue endurance of metallic glasses through a staircase-like fracture mechanism. Proc Natl Acad Sci U S A. 2013 Nov 12; 110(46):18419-24. PMID: 24167284.
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      43. Yao W, Guan M, Jia J, Dai W, Lay YA, Amugongo S, Liu R, Olivos D, Saunders M, Lam KS, Nolta J, Olvera D, Ritchie R, Lane NE. Reversing bone loss by directing mesenchymal stem cells to bone. Stem Cells. 2013 Sep; 31(9):2003-14. PMID: 23818248.
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      44. Busse B, Bale HA, Zimmermann EA, Panganiban B, Barth HD, Carriero A, Vettorazzi E, Zustin J, Hahn M, Ager JW, Püschel K, Amling M, Ritchie R. Vitamin D deficiency induces early signs of aging in human bone, increasing the risk of fracture. Sci Transl Med. 2013 Jul 10; 5(193):193ra88. PMID: 23843449.
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      45. Raja SN, Olson AC, Thorkelsson K, Luong AJ, Hsueh L, Chang G, Gludovatz B, Lin L, Xu T, Ritchie R, Alivisatos AP. Tetrapod nanocrystals as fluorescent stress probes of electrospun nanocomposites. Nano Lett. 2013 Aug 14; 13(8):3915-22. PMID: 23815586.
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      46. Ettinger B, Burr DB, Ritchie R. Proposed pathogenesis for atypical femoral fractures: lessons from materials research. Bone. 2013 Aug; 55(2):495-500. PMID: 23419776.
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      47. Zimmermann EA, Gludovatz B, Schaible E, Dave NK, Yang W, Meyers MA, Ritchie R. Mechanical adaptability of the Bouligand-type structure in natural dermal armour. Nat Commun. 2013; 4:2634. PMID: 24129554.
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      48. Yang W, Gludovatz B, Zimmermann EA, Bale HA, Ritchie R, Meyers MA. Structure and fracture resistance of alligator gar (Atractosteus spatula) armored fish scales. Acta Biomater. 2013 Apr; 9(4):5876-89. PMID: 23274521.
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      49. Bale HA, Haboub A, MacDowell AA, Nasiatka JR, Parkinson DY, Cox BN, Marshall DB, Ritchie R. Real-time quantitative imaging of failure events in materials under load at temperatures above 1,600?°C. Nat Mater. 2013 Jan; 12(1):40-6. PMID: 23223124.
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      50. Regelsberger J, Milovanovic P, Schmidt T, Hahn M, Zimmermann EA, Tsokos M, Zustin J, Ritchie R, Amling M, Busse B. Changes to the cell, tissue and architecture levels in cranial suture synostosis reveal a problem of timing in bone development. Eur Cell Mater. 2012; 24:441-58. PMID: 23188743.
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      51. Yang W, Chen IH, Gludovatz B, Zimmermann EA, Ritchie R, Meyers MA. Natural flexible dermal armor. Adv Mater. 2013 Jan 4; 25(1):31-48. PMID: 23161399.
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      52. Jia J, Yao W, Amugongo S, Shahnazari M, Dai W, Lay YA, Olvera D, Zimmermann EA, Ritchie R, Li CS, Alliston T, Lane NE. Prolonged alendronate treatment prevents the decline in serum TGF-ß1 levels and reduces cortical bone strength in long-term estrogen deficiency rat model. Bone. 2013 Jan; 52(1):424-32. PMID: 23088940.
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      53. Lemberg JA, Ritchie R. Mo-Si-B alloys for ultrahigh-temperature structural applications. Adv Mater. 2012 Jul 10; 24(26):3445-80. PMID: 22711489.
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      54. Guan M, Yao W, Liu R, Lam KS, Nolta J, Jia J, Panganiban B, Meng L, Zhou P, Shahnazari M, Ritchie R, Lane NE. Directing mesenchymal stem cells to bone to augment bone formation and increase bone mass. Nat Med. 2012 Mar; 18(3):456-62. PMID: 22306732.
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      55. Olvera D, Zimmermann EA, Ritchie R. Mixed-mode toughness of human cortical bone containing a longitudinal crack in far-field compression. Bone. 2012 Jan; 50(1):331-6. PMID: 22115793.
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      56. Ritchie R. The conflicts between strength and toughness. Nat Mater. 2011 Nov; 10(11):817-22. PMID: 22020005.
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      57. Barth HD, Zimmermann EA, Schaible E, Tang SY, Alliston T, Ritchie R. Characterization of the effects of x-ray irradiation on the hierarchical structure and mechanical properties of human cortical bone. Biomaterials. 2011 Dec; 32(34):8892-904. PMID: 21885114.
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      58. Zimmermann EA, Schaible E, Bale H, Barth HD, Tang SY, Reichert P, Busse B, Alliston T, Ager JW, Ritchie R. Age-related changes in the plasticity and toughness of human cortical bone at multiple length scales. Proc Natl Acad Sci U S A. 2011 Aug 30; 108(35):14416-21. PMID: 21873221.
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      59. Koester KJ, Barth HD, Ritchie R. Effect of aging on the transverse toughness of human cortical bone: evaluation by R-curves. J Mech Behav Biomed Mater. 2011 Oct; 4(7):1504-13. PMID: 21783160.
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      60. Barney MM, Xu D, Robertson SW, Schroeder V, Ritchie R, Pelton AR, Mehta A. Impact of thermomechanical texture on the superelastic response of Nitinol implants. J Mech Behav Biomed Mater. 2011 Oct; 4(7):1431-9. PMID: 21783153.
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      61. Runciman A, Xu D, Pelton AR, Ritchie R. An equivalent strain/Coffin-Manson approach to multiaxial fatigue and life prediction in superelastic Nitinol medical devices. Biomaterials. 2011 Aug; 32(22):4987-93. PMID: 21531019.
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      62. Shahnazari M, Yao W, Wang B, Panganiban B, Ritchie R, Hagar Y, Lane NE. Differential maintenance of cortical and cancellous bone strength following discontinuation of bone-active agents. J Bone Miner Res. 2011 Mar; 26(3):569-81. PMID: 20839286.
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      63. Demetriou MD, Launey ME, Garrett G, Schramm JP, Hofmann DC, Johnson WL, Ritchie R. A damage-tolerant glass. Nat Mater. 2011 Feb; 10(2):123-8. PMID: 21217693.
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      64. Busse B, Djonic D, Milovanovic P, Hahn M, Püschel K, Ritchie R, Djuric M, Amling M. Decrease in the osteocyte lacunar density accompanied by hypermineralized lacunar occlusion reveals failure and delay of remodeling in aged human bone. Aging Cell. 2010 Dec; 9(6):1065-75. PMID: 20874757.
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      65. Ionova-Martin SS, Wade JM, Tang S, Shahnazari M, Ager JW, Lane NE, Yao W, Alliston T, Vaisse C, Ritchie R. Changes in cortical bone response to high-fat diet from adolescence to adulthood in mice. Osteoporos Int. 2011 Aug; 22(8):2283-93. PMID: 20941479.
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      66. Chang JL, Brauer DS, Johnson J, Chen CG, Akil O, Balooch G, Humphrey MB, Chin EN, Porter AE, Butcher K, Ritchie R, Schneider RA, Lalwani A, Derynck R, Marshall GW, Marshall SJ, Lustig L, Alliston T. Tissue-specific calibration of extracellular matrix material properties by transforming growth factor-ß and Runx2 in bone is required for hearing. EMBO Rep. 2010 Oct; 11(10):765-71. PMID: 20847738.
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      67. 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 R, Hansma PK. Microindentation for in vivo measurement of bone tissue mechanical properties in humans. J Bone Miner Res. 2010 Aug; 25(8):1877-85. PMID: 20200991.
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      68. Zimmermann EA, Launey ME, Ritchie R. The significance of crack-resistance curves to the mixed-mode fracture toughness of human cortical bone. Biomaterials. 2010 Jul; 31(20):5297-305. PMID: 20409579.
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      69. Barth HD, Launey ME, Macdowell AA, Ager JW, Ritchie R. On the effect of X-ray irradiation on the deformation and fracture behavior of human cortical bone. Bone. 2010 Jun; 46(6):1475-85. PMID: 20206724.
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      70. Ritchie R. How does human bone resist fracture? Ann N Y Acad Sci. 2010 Mar; 1192:72-80. PMID: 20392220.
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      71. Thurner PJ, Chen CG, Ionova-Martin S, Sun L, Harman A, Porter A, Ager JW, Ritchie R, Alliston T. Osteopontin deficiency increases bone fragility but preserves bone mass. Bone. 2010 Jun; 46(6):1564-73. PMID: 20171304.
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      72. Shahnazari M, Yao W, Dai W, Wang B, Ionova-Martin SS, Ritchie R, Heeren D, Burghardt AJ, Nicolella DP, Kimiecik MG, Lane NE. Higher doses of bisphosphonates further improve bone mass, architecture, and strength but not the tissue material properties in aged rats. Bone. 2010 May; 46(5):1267-74. PMID: 19931661.
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      73. Launey ME, Chen PY, McKittrick J, Ritchie R. Mechanistic aspects of the fracture toughness of elk antler bone. Acta Biomater. 2010 Apr; 6(4):1505-14. PMID: 19941980.
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      74. Ionova-Martin SS, Do SH, Barth HD, Szadkowska M, Porter AE, Ager JW, Ager JW, Alliston T, Vaisse C, Ritchie R. Reduced size-independent mechanical properties of cortical bone in high-fat diet-induced obesity. Bone. 2010 Jan; 46(1):217-25. PMID: 19853069.
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      75. Launey ME, Munch E, Alsem DH, Saiz E, Tomsia AP, Ritchie R. A novel biomimetic approach to the design of high-performance ceramic-metal composites. J R Soc Interface. 2010 May 6; 7(46):741-53. PMID: 19828498.
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      76. Zimmermann EA, Launey ME, Barth HD, Ritchie R. Mixed-mode fracture of human cortical bone. Biomaterials. 2009 Oct; 30(29):5877-84. PMID: 19573911.
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      77. Launey ME, Hofmann DC, Johnson WL, Ritchie R. Solution to the problem of the poor cyclic fatigue resistance of bulk metallic glasses. Proc Natl Acad Sci U S A. 2009 Mar 31; 106(13):4986-91. PMID: 19289820.
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      78. Cheng Z, Yao W, Zimmermann EA, Busse C, Ritchie R, Lane NE. Prolonged treatments with antiresorptive agents and PTH have different effects on bone strength and the degree of mineralization in old estrogen-deficient osteoporotic rats. J Bone Miner Res. 2009 Feb; 24(2):209-20. PMID: 18847326.
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      79. Munch E, Launey ME, Alsem DH, Saiz E, Tomsia AP, Ritchie R. Tough, bio-inspired hybrid materials. Science. 2008 Dec 5; 322(5907):1516-20. PMID: 19056979.
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      80. Staninec M, Meshkin N, Manesh SK, Ritchie R, Fried D. Weakening of dentin from cracks resulting from laser irradiation. Dent Mater. 2009 Apr; 25(4):520-5. PMID: 19062088.
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      81. Kruzic JJ, Kim DK, Koester KJ, Ritchie R. Indentation techniques for evaluating the fracture toughness of biomaterials and hard tissues. J Mech Behav Biomed Mater. 2009 Aug; 2(4):384-95. PMID: 19627845.
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      82. Yao W, Cheng Z, Pham A, Busse C, Zimmermann EA, Ritchie R, Lane NE. Glucocorticoid-induced bone loss in mice can be reversed by the actions of parathyroid hormone and risedronate on different pathways for bone formation and mineralization. Arthritis Rheum. 2008 Nov; 58(11):3485-97. PMID: 18975341.
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      83. Kueck AM, Kim do K, Ramasse QM, De Jonghe LC, Ritchie R. Atomic-resolution imaging of the nanoscale origin of toughness in rare-earth doped SiC. Nano Lett. 2008 Sep; 8(9):2935-9. PMID: 18702553.
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      84. Koester KJ, Ager JW, Ritchie R. The true toughness of human cortical bone measured with realistically short cracks. Nat Mater. 2008 Aug; 7(8):672-7. PMID: 18587403.
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      85. Ritchie R, Koester KJ, Ionova S, Yao W, Lane NE, Ager JW. Measurement of the toughness of bone: a tutorial with special reference to small animal studies. Bone. 2008 Nov; 43(5):798-812. PMID: 18647665.
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      86. Ritchie R. Biological materials science. J Mech Behav Biomed Mater. 2008 Jul; 1(3):207. PMID: 19627785.
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      87. Neuendorf RE, Saiz E, Tomsia AP, Ritchie R. Adhesion between biodegradable polymers and hydroxyapatite: Relevance to synthetic bone-like materials and tissue engineering scaffolds. Acta Biomater. 2008 Sep; 4(5):1288-96. PMID: 18485842.
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      88. Ritchie R. The quest for stronger, tougher materials. Science. 2008 Apr 25; 320(5875):448; author reply 448. PMID: 18436757.
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      89. Mohammad KS, Chen CG, Balooch G, Stebbins E, McKenna CR, Davis H, Niewolna M, Peng XH, Nguyen DH, Ionova-Martin SS, Bracey JW, Hogue WR, Wong DH, Ritchie R, Suva LJ, Derynck R, Guise TA, Alliston T. Pharmacologic inhibition of the TGF-beta type I receptor kinase has anabolic and anti-catabolic effects on bone. PLoS One. 2009; 4(4):e5275. PMID: 19357790.
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      90. Kruzic JJ, Ritchie R. Comments on "Measurement of the microstructural fracture toughness of cortical bone using indentation fracture". J Biomech. 2008; 41(6):1379-80. PMID: 18342866.
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      91. Robertson SW, Ritchie R. A fracture-mechanics-based approach to fracture control in biomedical devices manufactured from superelastic Nitinol tube. J Biomed Mater Res B Appl Biomater. 2008 Jan; 84(1):26-33. PMID: 17477387.
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      92. Koester KJ, Ager JW, Ritchie R. The effect of aging on crack-growth resistance and toughening mechanisms in human dentin. Biomaterials. 2008 Apr; 29(10):1318-28. PMID: 18164757.
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      93. Staninec M, Kim P, Marshall GW, Ritchie R, Marshall SJ. Fatigue of dentin-composite interfaces with four-point bend. Dent Mater. 2008 Jun; 24(6):799-803. PMID: 17996931.
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      94. Balooch G, Yao W, Ager JW, Balooch M, Nalla RK, Porter AE, Ritchie R, Lane NE. The aminobisphosphonate risedronate preserves localized mineral and material properties of bone in the presence of glucocorticoids. Arthritis Rheum. 2007 Nov; 56(11):3726-37. PMID: 17968931.
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      95. Bloyer DR, McNaney JM, Cannon RM, Saiz E, Tomsia AP, Ritchie R. Stress-corrosion crack growth of Si-Na-K-Mg-Ca-P-O bioactive glasses in simulated human physiological environment. Biomaterials. 2007 Nov; 28(33):4901-11. PMID: 17714778.
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      97. Kruzic JJ, Ritchie R. Fatigue of mineralized tissues: cortical bone and dentin. J Mech Behav Biomed Mater. 2008 Jan; 1(1):3-17. PMID: 19627767.
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      98. Stankiewicz JM, Robertson SW, Ritchie R. Fatigue-crack growth properties of thin-walled superelastic austenitic Nitinol tube for endovascular stents. J Biomed Mater Res A. 2007 Jun 1; 81(3):685-91. PMID: 17187394.
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      101. Kruzic JJ, Ritchie R. Kitagawa-Takahashi diagrams define the limiting conditions for cyclic fatigue failure in human dentin. J Biomed Mater Res A. 2006 Dec 1; 79(3):747-51. PMID: 17013865.
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      102. Nalla RK, Kinney JH, Tomsia AP, Ritchie R. Role of alcohol in the fracture resistance of teeth. J Dent Res. 2006 Nov; 85(11):1022-6. PMID: 17062743.
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      103. Robertson SW, Ritchie R. In vitro fatigue-crack growth and fracture toughness behavior of thin-walled superelastic Nitinol tube for endovascular stents: A basis for defining the effect of crack-like defects. Biomaterials. 2007 Feb; 28(4):700-9. PMID: 17034845.
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      104. Russias J, Saiz E, Nalla RK, Gryn K, Ritchie R, Tomsia AP. Fabrication and mechanical properties of PLA/HA composites: A study of in vitro degradation. Mater Sci Eng C Biomim Supramol Syst. 2006 Sep; 26(8):1289-1295. PMID: 26301264.
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      105. Mankani MH, Kuznetsov SA, Shannon B, Nalla RK, Ritchie R, Qin Y, Robey PG. Canine cranial reconstruction using autologous bone marrow stromal cells. Am J Pathol. 2006 Feb; 168(2):542-50. PMID: 16436668.
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      106. Kruzic JJ, Scott JA, Nalla RK, Ritchie R. Propagation of surface fatigue cracks in human cortical bone. J Biomech. 2006; 39(5):968-72. PMID: 15907859.
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      107. Balooch G, Balooch M, Nalla RK, Schilling S, Filvaroff EH, Marshall GW, Marshall SJ, Ritchie R, Derynck R, Alliston T. TGF-beta regulates the mechanical properties and composition of bone matrix. Proc Natl Acad Sci U S A. 2005 Dec 27; 102(52):18813-8. PMID: 16354837.
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      108. Yang QD, Cox BN, Nalla RK, Ritchie R. Re-evaluating the toughness of human cortical bone. Bone. 2006 Jun; 38(6):878-87. PMID: 16338188.
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      109. Porter AE, Nalla RK, Minor A, Jinschek JR, Kisielowski C, Radmilovic V, Kinney JH, Tomsia AP, Ritchie R. A transmission electron microscopy study of mineralization in age-induced transparent dentin. Biomaterials. 2005 Dec; 26(36):7650-60. PMID: 16005961.
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      110. Yang QD, Cox BN, Nalla RK, Ritchie R. Fracture length scales in human cortical bone: the necessity of nonlinear fracture models. Biomaterials. 2006 Mar; 27(9):2095-113. PMID: 16271757.
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      111. Marrey RV, Burgermeister R, Grishaber RB, Ritchie R. Fatigue and life prediction for cobalt-chromium stents: A fracture mechanics analysis. Biomaterials. 2006 Mar; 27(9):1988-2000. PMID: 16260033.
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      112. Nalla RK, Porter AE, Daraio C, Minor AM, Radmilovic V, Stach EA, Tomsia AP, Ritchie R. Ultrastructural examination of dentin using focused ion-beam cross-sectioning and transmission electron microscopy. Micron. 2005; 36(7-8):672-80. PMID: 16182542.
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      113. Regan BC, Aloni S, Jensen K, Ritchie R, Zettl A. Nanocrystal-powered nanomotor. Nano Lett. 2005 Sep; 5(9):1730-3. PMID: 16159214.
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      114. Kruzic JJ, Kuskowski SJ, Ritchie R. Simple and accurate fracture toughness testing methods for pyrolytic carbon/graphite composites used in heart-valve prostheses. J Biomed Mater Res A. 2005 Sep 1; 74(3):461-4. PMID: 15973730.
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      115. Nalla RK, Stölken JS, Kinney JH, Ritchie R. Fracture in human cortical bone: local fracture criteria and toughening mechanisms. J Biomech. 2005 Jul; 38(7):1517-25. PMID: 15922763.
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      116. Kinney JH, Nalla RK, Pople JA, Breunig TM, Ritchie R. Age-related transparent root dentin: mineral concentration, crystallite size, and mechanical properties. Biomaterials. 2005 Jun; 26(16):3363-76. PMID: 15603832.
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      117. Ager JW, Nalla RK, Breeden KL, Ritchie R. Deep-ultraviolet Raman spectroscopy study of the effect of aging on human cortical bone. J Biomed Opt. 2005 May-Jun; 10(3):034012. PMID: 16229656.
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      118. Nalla RK, Kruzic JJ, Kinney JH, Ritchie R. Aspects of in vitro fatigue in human cortical bone: time and cycle dependent crack growth. Biomaterials. 2005 May; 26(14):2183-95. PMID: 15576194.
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      119. Kruzic JJ, Nalla RK, Kinney JH, Ritchie R. Mechanistic aspects of in vitro fatigue-crack growth in dentin. Biomaterials. 2005 Apr; 26(10):1195-204. PMID: 15451639.
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      120. Staninec M, Nalla RK, Hilton JF, Ritchie R, Watanabe LG, Nonomura G, Marshall GW, Marshall SJ. Dentin erosion simulation by cantilever beam fatigue and pH change. J Dent Res. 2005 Apr; 84(4):371-5. PMID: 15790746.
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      121. Imbeni V, Kruzic JJ, Marshall GW, Marshall SJ, Ritchie R. The dentin-enamel junction and the fracture of human teeth. Nat Mater. 2005 Mar; 4(3):229-32. PMID: 15711554.
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      122. Robertson SW, Imbeni V, Wenk HR, Ritchie R. Crystallographic texture for tube and plate of the superelastic/shape-memory alloy Nitinol used for endovascular stents. J Biomed Mater Res A. 2005 Feb 1; 72(2):190-9. PMID: 15625682.
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      124. Nalla RK, Balooch M, Ager JW, Kruzic JJ, Kinney JH, Ritchie R. Effects of polar solvents on the fracture resistance of dentin: role of water hydration. Acta Biomater. 2005 Jan; 1(1):31-43. PMID: 16701778.
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      125. Ziegler A, Idrobo JC, Cinibulk MK, Kisielowski C, Browning ND, Ritchie R. Interface structure and atomic bonding characteristics in silicon nitride ceramics. Science. 2004 Dec 3; 306(5702):1768-70. PMID: 15576617.
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      126. Nalla RK, Kruzic JJ, Kinney JH, Ritchie R. Effect of aging on the toughness of human cortical bone: evaluation by R-curves. Bone. 2004 Dec; 35(6):1240-6. PMID: 15589205.
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      127. Nalla RK, Kruzic JJ, Ritchie R. On the origin of the toughness of mineralized tissue: microcracking or crack bridging? Bone. 2004 May; 34(5):790-8. PMID: 15121010.
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      128. Regan BC, Aloni S, Ritchie R, Dahmen U, Zettl A. Carbon nanotubes as nanoscale mass conveyors. Nature. 2004 Apr 29; 428(6986):924-7. PMID: 15118721.
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      129. Nalla RK, Kinney JH, Marshall SJ, Ritchie R. On the in vitro fatigue behavior of human dentin: effect of mean stress. J Dent Res. 2004 Mar; 83(3):211-5. PMID: 14981121.
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      130. Kruzic JJ, Nalla RK, Kinney JH, Ritchie R. Crack blunting, crack bridging and resistance-curve fracture mechanics in dentin: effect of hydration. Biomaterials. 2003 Dec; 24(28):5209-21. PMID: 14568438.
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      131. Nalla RK, Kinney JH, Ritchie R. On the fracture of human dentin: is it stress- or strain-controlled? J Biomed Mater Res A. 2003 Nov 1; 67(2):484-95. PMID: 14566789.
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      132. Nalla RK, Kinney JH, Ritchie R. Effect of orientation on the in vitro fracture toughness of dentin: the role of toughening mechanisms. Biomaterials. 2003 Oct; 24(22):3955-68. PMID: 12834591.
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      133. Imbeni V, Nalla RK, Bosi C, Kinney JH, Ritchie R. In vitro fracture toughness of human dentin. J Biomed Mater Res A. 2003 Jul 1; 66(1):1-9. PMID: 12833425.
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      134. Nalla RK, Imbeni V, Kinney JH, Staninec M, Marshall SJ, Ritchie R. In vitro fatigue behavior of human dentin with implications for life prediction. J Biomed Mater Res A. 2003 Jul 1; 66(1):10-20. PMID: 12833426.
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      135. Nalla RK, Kinney JH, Ritchie R. Mechanistic fracture criteria for the failure of human cortical bone. Nat Mater. 2003 Mar; 2(3):164-8. PMID: 12612673.
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      136. Asoo B, McNaney JM, Mitamura Y, Ritchie R. Cyclic fatigue-crack propagation in sapphire in air and simulated physiological environments. J Biomed Mater Res. 2000 Dec 5; 52(3):488-91. PMID: 11007616.
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      137. McKelvey AL, Ritchie R. Fatigue-crack propagation in Nitinol, a shape-memory and superelastic endovascular stent material. J Biomed Mater Res. 1999 Dec 5; 47(3):301-8. PMID: 10487880.
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      138. Gordon L, Dysarz FA, Venkateswara KT, Mok AP, Ritchie R, Rabinowitz S. Flexor tendon repair using a stainless steel external splint. Biomechanical study on human cadaver flexor tendons. J Hand Surg Br. 1999 Dec; 24(6):654-7. PMID: 10672797.
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      139. Gordon L, Tolar M, Rao KT, Ritchie R, Rabinowitz S, Lamb RP. Flexor tendon repair using a stainless steel internal anchor. Biomechanical study on human cadaver tendons. J Hand Surg Br. 1998 Feb; 23(1):37-40. PMID: 9571477.
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      140. Ritchie R. Fatigue and fracture of pyrolytic carbon: a damage- tolerant approach to structural integrity and life prediction in "ceramic" heart valve prostheses. J Heart Valve Dis. 1996 Jun; 5 Suppl 1:S9-31. PMID: 8794026.
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      144. Ritchie R, Lubock P. Fatigue life estimation procedures for the endurance of a cardiac valve prosthesis: stress/life and damage-tolerant analyses. J Biomech Eng. 1986 May; 108(2):153-60. PMID: 3724103.
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