Elast-Eon™ Publications
1. Hernandez, Rebecca; Weksler, Jadwiga; Padsalgikar, Ajay; Runt, James.
In Vitro Oxidation of High Polydimethylsiloxane Content Biomedical Polyurethanes: Correlation with Microstructure.
Department of Materials Science and Engineering, Pennsylvania State University, University Park, PA, USA Journal of Biomedical Materials Research Part A (accepted for publication in Journal of Biomedical Materials Research)
2. Hernandez, Rebeca; Weksler, Jadwiga; Padsalgikar, Ajay; Runt, James.
Microstructural organization of polydimethylsiloxane based segmented polyurethane copolymers.
Department of Materials Science and Engineering, The Pennsylvania State University, University Park, PA, USA. Polymer Preprints (American Chemical Society, Division of Polymer Chemistry) (2007), 48(1), 835
3. Hernandez, Rebeca; Weksler, Jadwiga; Padsalgikar, Ajay; Runt, James.
Microstructural Organization of Three-Phase Polydimethylsiloxane-Based Segmented Polyurethanes.
Department of Materials Science and Engineering and Materials Research Institute, The Pennsylvania State University, University Park, PA, USA. Macromolecules (Washington, DC, United States) (2007), 40(15), 5441-5449
4. Microstructure and biostability of biomedical polyurethane block copolymers with different soft segment chemistries.
Annual Technical Conference - Society of Plastics Engineers (2007), 65th 2553-2557

5. Mudumba, Ramasri; Padsalgikar, Ajay D.; Littler, Stuart W.
Evaluation of aqueous extracts from Elast-Eon™ polymers for methylene dianiline (MDA) by high-performance liquid chromatography (HPLC).
Australian Journal of Chemistry (2005), 58(12), 845-850
6. Simmons A, Hyvarinen J, Odell RA, Martin DJ, Gunatillake PA, Noble KR, Poole-Warren LA.
Long-term in vivo Biostability of Poly(dimethylsiloxane)/Poly(hexamethylene oxide) Mixed Macrodiol-based Polyurethane Elastomers.
Biomaterials, 25:4887-4900 (2004).
7 Gunatillake PA, Martin DJ, Meijs GF, McCarthy SJ, and Adhikari R.Designing Biostable Polyurethane Elastomers for Biomedical Implants.
Aust. J. Chem. 56: 545-557 (2003).
8. Gunatillake PA, Meijs GF, McCarthy SJ.
"Developments in Design and Synthesis of Biostable Polyurethanes", in Biomedical Applications of Polyurethanes, Vermette et al.
Eds, Lands Bioscience, Grorgetown, Texas, USA, 2001.
9. Adhikari R, Gunatillake PA, et al.
Mixed Macrodiol-based Siloxane Polyurethanes: Effect of the Comacrodiol Structure on Properties and Morphology.
Journal of Applied Polymer Science 78: 1071-1082 (2000).
10. Gunatillake PA., Meijs G F., et al.
Poly(dimethylsiloxane)/poly(hexamethylene oxide) mixed macrodiol based polyurethane elastomers. I. Synthesis and properties.
Journal of Applied Polymer Science, 76:2026-2040 (2000).
11. Martin DJ, Poole-Warren LA, Gunatillake PA, McCarthy SJ, Meijs GF, and Schindhelm K.
Polydimethylsiloxane/Polyether -mixed Macrodiol-based Polyurethane Elastomers: Biostability.
Biomaterials 21: 1021-1029 (2000).
12. Martin DJ, Meijs GF, et al.
The Influence of Composition Ratio on the Morphology of Biomedical Polyurethanes.
J. of Applied Polymer Science 71: 937-952 (1999).
13. Adhikari R, Gunatillake PA, McCarthy SJ, Meijs GF.
The Effect of Chain Extender Structure on Properties and Morphology of Polyurethanes Based on H12MDI and Mixed Macrodiols (PDMS/PHMO)
J. Appl. Polym. Sci. 74: 2979-2989 (1999).
14.   Gunatillake PA, Meijs GF, McCarthy SJ, Adhikari R, and Sherrif N.
Synthesis and Characterization of a Series of Poly(alkylene carbonate) Macrodiols and the Effect of Their Structure on the Properties of Polyurethanes.
J. Appl. Polym. Sci 68: 1621-1633 (1998).
15. Adhikari R, Gunatillake PA, Meijs GF, and McCarthy SJ.
The Effect of Diisocyanate Isomer Composition on Properties and Morphology of Polyurethanes Based on 4,4'-dicyclohexyl Methane Diisocyanate and Mixed Macrodiols (PDMS-PHMO)
J. Appl. Polym. Sci. 73: 573-582 (1998).
16. Martin DJ, Meijs GF, Gunatillake PA, Renwick GM, and McCarthy SJ.
Effect of Average Soft Segment Length on Morphology and Properties of a Series of Polyurethane Elastomers. II SAXS-DSC Annealing Study.
J. Appl. Polym. Sci. 64: 803 (1997).
   
17. Gunatillake PA, Meijs GF, Mccarthy SJ, and Sherrif N.
Polyurethane Elastomers with Low Modulus and Hardness Based on Novel Copolyether Macrodiols.
J. Appl. Polym. Sci, 63: 1373 (1997).
18. McCarthy SJ, Meijs GF, Mitchell N, Gunatillake PA, Graeme H, Brandwood A, and Schindhelm K.
In vivo Degradation of polyurethanes: Transmission -FTIR Microscopic Characterization of Polyurethanes Sectionated by Cryomicroscopy.
Biomaterials 18: 1387 (1997).
19. McCarthy SJ, Meijs GF, and Gunatillake PA.
Synthesis, Characterization, and Stability of Poly[(alkylene oxide)ester] Thermoplastic Elastomers.
J. Appl. Polym. Sci. 65:1319 (1997).
20. Hunt JA, Meijs GF, and Williams DF.
Hydrophilicity of Polymers and Soft Tissue Responses: A Quantative Analysis.
J. Biomed. Mater. Res. 36:542-549 (1997).
21. Martin DJ, Meijs GF, Renwick GM, Gunatillake PA, and McCarthy SJ.
Effect of Soft-segment CH2/O Ratio on Morphology and Properties of a Series of Polyurethane Elastomers.
J. Appl. Polym. Sci. 60: 557 (1996).
22. Brandwood A, Meijs GF, Gunatillake PA, Noble KR, Schindhelm K, and Rizzado E.
In Vivo Evaluation of Polyurethanes Based on Novel Macrodiols and MDI.
J. Biomater. Sci. Polymer Edn, 6:41-54 (1994).
23. Pathiraja A, Gunatillake PA, Meijs GF, Rizzardo E, McCarthy SJ, Chatelier RC, Brandwood A, Schindhelm K.
Novel Polyetherurethaneurea Elastomers Based on a,a,a,a - Tetramethyl -m-xylenediisocyanate: Synthesis, Characterization, Processability and Hydrolytic Stability.
J. Appl. Polym. 47: 199-210 (1993).
24. Meijs GF, McCarthy SJ, Rizzardo E, Chen YC, and Chatelier RC.
J. Biomed. Mater. Res. 27: 345-356 (1993).
25. Gunatillake PA., Meijs GF.. Et al.
Polyurethane Elastomers Based on Novel Polyether Macrodiols and MDI: Sysnthesis, Mechanical Properties, and Resistance to Hydrolysis and Oxidation.
Journal of Applied Polymer Science 46:319-328 (1992).
26. Gunatillake PA, Meijs GF, Chatelier RC, McIntosh DM, Rizzardo E.
Synthesis and Characterization of Hydroxy - Terminated Poly(alkylene oxides) by Condensation Polymerization.
Polymer International 27:275 (1992).
27. Brandwood A., Noble KR, Schindhelm K, Meijs GF, Gunatillake PA, Chatelier RC, McCarthy SJ, and Rizzardo E.
A Comparison of in Vivo Degradation of novel Polyurethanes with Performance in in Vitro Accelerated Tests.
In: Dauner M (Ed) Degradation Phenomena in Polymeric Biomaterials, Springer-Verlag, Berlin, 59-66 (1992).
28. Brandwood A, Noble KR, Schindhelm K, Meijs GF, Gunatilake PA, Chatelier RC, McCarthy SJ, and Rizzardo E.
Influence of Stress on Novel biomedical Polyurethanes.
Adv. Biomater. 10 (Biomaterial - Tissue Interfaces): 413-419 (1992).
 
 

Conference Presentations
1.

Ajay D Padsalgikar, Mansour Mehrabi, V. Sriram, Trang Nhan, Mark Bown.
Development of a Biologically Stable Urethane-Silicone Copolymer Gel.
16th Annual Conference, Australian Society for Biomaterials, 2006.

2.

Ajay D Padsalgikar , Elenora Stepanova, Paul Nugent.
Liquid Reaction Rotational Moulding of a Biostable Silicone-Urethane Co-polymer.
28th Australian Polymer Symposium, New Zealand, 2006.

3. Simmons A, Hyvarinen J, Odell RA, Gunatillake PA, Martin DJ, Noble KR, Poole-Warren LA.
Long Term in vivo Biostability of Poly(dimethylsilixane)/Poly(hexamethylene oxide) Mixed Macrodiol-based Polyurethane Elastomers.
7th Biomaterials Congress, p1862, Sydney, Australia, May 2004.
4. Tan J and Jenney CR.
Effects of Polysiloxane Soft Segment Content on Biostability of Polyurethanes.
7th Biomaterials Congress, p1876, Sydney, Australia, May 2004.
5. Karicherla A and Jenney CR.
Susceptibility of Elast-Eon™ 2A to Metal Ion Oxidation: Results of An Accelerated in vitro Study.
7th Biomaterials Congress, p1878, Sydney, Australia, May 2004.
6. Jenney C, Karicherla A, Troutman T, Salerno A.
In Vitro Evaluation of Elast-Eon™ 2A Susceptibility to Metal Ion Oxidation.
7th Biomaterials Congress, p632, Sydney, Australia, May 2004.
7. Jenney C, Karicherla A, Troutman T, Salerno A.
In Vivo Evaluation of Elast-Eon™ 2A Susceptibility to Environmental Stress Cracking.
7th Biomaterials Congress, p1877, Sydney, Australia, May 2004.
8. Padsalgikar AD, Nguyen X, and Griffiths IM.
Evaluation of Biostable Polyurethane Silicone Copolymers (Elast-Eon™s as Drug Eluting Polymers for Stent Coating.
7th Biomaterials Congress, p532, Sydney, Australia, May 2004.
9. Gunatillake PA, Adhikari R, le TPT, Padsalgikar AD, Weksler J, Griffiths IM.
Effect of Cross Linking on Creep Resistance of Biostable Polyurethanes.
7th Biomaterials Congress, p1591, Sydney, Australia, May 2004.
10. Ebert M, Ward B., Anderson J, Tian Y, McVenes R, Stokes K.
Screening of Polyurethane with Polyether and Polysiloxane Soft Segments for Resistance to Environmental Stress Cracking. Society for Biomaterials
29th Annual Meeting Transactions. p542. Rino, NV, 2003.
11. Ahhikari R., Gunatillake PA, et al.
Effect of PDMS Molecular Weight on Morphology and Properties.
Society for Biomaterials, 28th Annual Meeting Transactions. p411, 2002.
12. Poole-Warren LA, Simmons A, et al.
In vivo Biostability of Polydimethylsilixane/polyether-mixed Macrodiol-based Polyurethanes.
Society for Biomaterials, 27th Annual Meeting Transactions. p456, 2001.
13. Adhikari R, Gunatillake PA, et al.
Siloxane-based Polyurethaneureas: Synthesis and Properties.
Society for Biomaterials, 27th Annual Meeting Transactions. p170, 2001
14. Gillain M Bernacca & David J Sheatley.
A Functional and Morphological Study of Biostable Polyurethane Heart Valve Leaflets Explanted from Sheep.
Society for Biomaterials, 27th Annual Meeting Transactions. p129, 2001.
15. Hyvarinen JP, Belgraver W, et al.
Effect of Sterilization on the Mechanical Properties of a Siloxane Containing Polyurethane.
Society for Biomaterials, 27th Annual Meeting Transactions. p155, 2001.
16. Gunatillake PA, Adhikari R.
The effect of Chain Extender Structure on Properties, Morphology and Biostability of siloxane-polyurethanes.
Society for Biomaterials, 27th Annual Meeting Transactions. p128, 2001.
17. Fisher J, Butterfield M.
A New Design of Polymer Synthetic Leaflet Heart Valve.
The 6th World Biomaterials Congress, p68, Hawaii, May 2000.
18. McCarthy SJ, Martin DJ, Meijs GF, Gunatillake PA, Poole-Warren LA, Schindhelm K.
A Morphology Study of A Biodegradation Resistant Polydimethylsiloxane Polyurethane: Systematic Modification of the Soft Segment Domain Composition.
The 6th World Biomaterials Congress, p82, Hawaii, May 2000.
19. Meijs GF, Gunatillake PA, McCarthy SJ, et al.
New Developments in Implantable Polyurethanes.
The 6th World Biomaterials Congress, Invited Speaker Presentations. Hawaii, May 2000.
20. O'Connor BO, Bernacca GM, Straub I, Wheatley DJ.
Mechanical Testing of Flexible Polyurethanes: Candidate Selection for a Prosthetic Heart Valve.
The 6th World Biomaterials Congress, p294, Hawaii, May 2000.
21. Hunt JA, Rhodes NP, Shortland AP, Williams DF.
A Quantitative Evaluation of the Soft Tissue to Response to Biostable Polyurethanes.
The 6th World Biomaterials Congress, p468, Hawaii, May 2000.
22. Bernacca GM, O'Connor B, Wheatley DJ.
Hydrodynamic Function of a Polyurethane Prosthetic Heart Valves: Influences of Young's Modulus and Leaflet Thickness.
The 6th World Biomaterials Congress, p584. Hawaii, May 2000.
23. Adhikari R, Gunatillake PA, Meijs GF, McCarthy SJ, Martin DJ, Poole-Warren LA, Schindhelm K.
Synthesis and Biostability of Low Modulus Siloxane Based Polyurethanes.
The 6th World Biomaterials Congress, p812. Hawaii, May 2000.
24. Rhodes NP, Shortland AP, Hunt JA, et al.
In vivo Biostability of Polyurethanes Purported to be Biologically Stable.
1999 Society for Biomaterials, 25th Annual Meeting, Vol 22 p62. Rhode Island, (1999).
25. Gunatillake PA, Meijs GF, et al.
Synthesis and Biostability of a Novel Siloxane-based polyurethane Elastomer.
Society for Biomaterials, 25th Annual Meeting, Rhode Island, Vol 22, p369 (1999).
26 Adhikari R, Gunatillake PA, Meijs GF, and McCarthy SJ.
Effect of Different Chain Extenders on the Properties of Polyurethane Elastomers Based on H12MDI and Mixed Macrodiols (PDMS/PHMO).
3th International Symposium on Macromolecules (World Polymer Congress), p480. Gold Coast, 12-17 July, (1998).
27. Meijs GF, Gunatillake PA, McCarthy SJ, Martin DJ, Poole-Warren L, and Schindlelm K.
Degradation Resistant Polyurethane Compositions.
Polym. Mater. Sci. & Eng. Vol 79, p523 (1998).
28. Meijs GF, Gunatllake PA, McCarthy S, Martin DJ, Poole-Warren LA, Brandwood A, and Schindhelm K.
Mechanical Properties and Biostability of a Novel Siloxane Based Polyurethane.
Society for Biomaterials, 23rd Annual Meeting, New Orleans, Louisiana, Vol XX, p. 176, (1997).
29. Gunatllake PA, Meijs GF, Rizzardo E, Brandwood A, Schindhelm K.
Long-Term in vivo Stability of Polyurethanes.
Trans Society for Biomaterials (Birmingham), (1993).
30. Meijs Gf, Gunatillake PA, Rizzardo E, Brandwood A, Chatelier RC, McCarthy SJ, Schindhelm K.
Polyurethane Elastomers Containing Novel Macrodiols I. Synthesis and Properties.
Trans. 4th World Biomat. Conf, p473. Berlin, (1992).
31. Brandwood A, Schindhelm K, Noble K, Meijs GF, Gunatillake PA, RizzardoE.
Polyurethane Elastomers Containing Novel Macrodiols II. In vivo Evaluation.
Trans. 4th World Biomat. Conf, p201. Berlin, (1992).
32. Gunatillake PA, Meijs GF, Rizzardo E, McCarthy SJ, Chatelier RC, Brandwood A. Schindhelm K.
Improved Polymers for Medical Implants.
Proc 19th Australian Polymer Synposium, p69. Perth, (1992).
33. Meijs GF, Pathiraja A, Gunatillake PA, Rizzardo E, McCarthy SJ, Chatelier RC, Brandwood A, Schindhelm K.
Improved Polymers for Medical Implants - Polyurethanes. Progress in Pacific Polymer Science:
Proc. 2nd Pacific Polym. Fed. (Y. Imanishi, Ed.) p314 (1992).
34. Meijs GF, Gunatllake PA, Rizzardo E, Brandwood A, Schindhelm K, McCarthy SJ, and Chatelier RC.
Improved Polymers for Medical Implants.
Preprints of the 2nd Pacific Polymer Conference, 243-244 (1991).