PUBLICATIONS

§  SECLECTED PUBLICATIONS:

1. Mohamed S Ibrahim, Hassan Beheshti Seresht, Chang Hun Kum, Jae Hwa Cho, Gyuhyun Jin, Sang Hyun An, Sangho Ye, Seungil Kim, William R Wagner, Youngjae Chun. (2025) Novel Laser-Textured Grooves Extended to the Sidewall Edges of CoCr Surfaces for Rapid and Selective Endothelialization Following Coronary Artery Stenting. Biomaterials, 123299.

2. Amr F. Mohamed, Chahinaz A. Saleh, Youngjae Chun, Chang Hun Kum, Jae Hwa Cho, Gyuhyun Jin, Sang Hyun An, Moataz Elsisty. (2025) Analytical model for stress calculation of ultra-thin cobalt chromium L605 coronary stent. Thin-Walled Structures, 211, 113097.

3. Dahlia M. Kenawy, Jordan F. Stafford, Foued Amari, Drayson Campbell, Mahmoud Abdel-Rasoul, Jennifer Leight, Youngjae Chun, Bryan W, Tillman. (2024) A porcine model of thoracic aortic aneurysms created with a retrievable drug infusion stent graft mirrors human aneurysm pathophysiology. JVS-Vascular Science, 5, 100212.

4. Dahlia M. Kenawy, Yifan Zhang, Moataz Elsisy, Mahmoud Abdel-Rasoul, Youngjae Chun, William C. Clark, Bryan W. Tillman. (2023) A self calibrating, magnetic sensor approach accurately positions an aortic damage control stent in a porcine model. Trauma Surgery & Acute Care Open, 8:e001220. doi:10.1136/tsaco-2023-001220.

5. Mohamed Ibrahim, Moataz Elsisy, Kara Nghiem, Amr F. Mohamed, Chang Hun Kum, Jae Hwa Cho, Gyuhyun Jin, Sang Hyun An, Youngjae Chun. (2023) Comprehensive mechanical performance characteristics of newly developed ultra-thin coronary stents. Biomedical Engineering Advances, 6 (100097).

6. Yifan Zhang, William W. Clark, Bryan Tillman, Youngjae Chun, Stephanie Liu, Sung Kwon Cho. (2023) A System to Track Stent Location in the Human Body by Fusing Magnetometer and Accelerometer Measurements. Sensors, 23(4887).

7. Stephen Emery, Stephanie Greene, Moataz Elsisy, Kaitlin Chung, Sang-Ho Ye, Seungil Kim, William R. Wagner, Youngjae Chun. (2023) In vitro and in vivo assessment of a novel ultra‑flexible ventriculoamniotic shunt for treating fetal hydrocephalus. Journal of Biomaterials Applications, doi: 10.1177/08853282221125309.

8. Mohamed Ibrahim, Kara X. Nghiem, Kaitlin Chung, Moataz Elsisy, Uma J. Gosai, Seungil Kim, Sangho Ye, William R. Wagner, Youngjae Chun. (2023) A Novel Low-Profile Self-Expanding Biodegradable Percutaneous Heart Valve Frame That Grows with a Child. Coatings, 13(184).

9. Dahila M. Kenawy, Moataz Elsisy, Mahmoud Abdel-Rasoul, Tanner L. Koppert, Marlene I. Garcia-Neur, Youngjae Chun, Bryan W. Tillman. (2023) A dumbbell rescue stent graft facilitates clamp-free repair of aortic injury in a porcine model. JVS-Vascular Science, 4 (100100).

10. Seungil Kim, Kamil W. Nowicki, Sangho Ye, Kyeongwoo Jang, Moataz Elsisy, Mohamed Ibrahim, Youngjae Chun, William R. Wagner. (2022) Fatty amide-based polyurethane urea for potential use in coating on bioabsorbable magnesium-alloy coils for treating saccular aneurysms. Biomaterials, 290 (121857).

11. Robert Herbert, Moataz Elsisy, B. Rigo, H. Lim, S. Kim, S. Ye, William R. Wagner, Youngjae Chun, W. Yeo. (2022) Fully implantable batteryless soft platforms with arterial stiffness sensors for wireless continuous monitoring of restenosis in real time. Nano Today. 46 (101557)

12. Minjeong Park, Youngjae Chun, Seonpil Kim, Keun Yong Sohn, and Minhyon Jeon. (2022) Effect of Hexagonal Boron Nitride Insulating Layers on the Driving Performance of Ionic Electroactive Polymer Actuators for Light‑Weight Artificial Muscles. International Journal of Molecular Sciences. 23(9):4981, 1‑10.

13. Moataz Elsisy, Bryan W. Tillman, Lynn Cho‡, Catherine Go, Sung Kwon Cho, Youngjae Chun. (2022) In Vitro and In Vivo Assessment of a Novel Organ Perfusion Stent (OPS) for Successful Flow Separation in Donation after Cardiac Death. Journal of Biomaterials Applications. 37(3), 389-401.

14. Go, Catherine, Larry Fish, Youngjae Chun, Louis Alarcon, Bryan W. Tillman. (2022) The Anchor Point Algorithm: A Morphometric Analysis of Anatomic Landmarks to Guide Placement of Temporary Aortic Rescue Stentgrafts for Non‑Compressible Torso Hemorrhage. The Journal of Trauma and Acute Care Surgery, doi: 10.1097/TA.0000000000003539.

15. Catherine Go, Moataz Elsisy, Brian Frenz, J.B. Moses, Amit D. Tevar, Anthony J. Demetris, Youngjae Chun, Bryan W. Tillman. (2021) A retrievable, dual chamber stent protects against warm ischemia of donor organs in a model of donation after circulatory death. Surgery. 171(4), 1100-1107.

16. Moataz Elsisy, Mahdis Shayan†, Yanfei Chen, Bryan W. Tillman, Catherine Go, and Youngjae Chun. (2021) Assessment of mechanical and biocompatible performance of ultra large nitinol endovascular devices fabricated via a low energy laser joining process, Journal of Biomaterials Applications, 36(2), 332‑345.

17. Jingyao Wu, Leila J. Mady, Abhijit Roy, Ali Mubin Aral, Boeun Lee, Feng Zheng, Toma Catalin, Youngjae Chun, William R. Wagner, Ke Yang, Humberto E. Trejo Bittar, David Chi, and Prashant N. Kumta. (2020) In‑vivo efficacy of biodegradable ultra‑high ductility Mg‑Li‑Zn alloy stents for pediatric airway obstruction. Nature Communications Biology, 3(787), 1-11.

18. Catherine Go, Moataz Elsisy, Youngjae Chun, Parthasarathy D. Thirumala, William W. Clark, Sung Kwon Cho, Anthony J. Demetris, and Bryan W. Tillman. (2020) A three‑tier Rescue stent improves outcomes over balloon occlusion in a porcine model of noncompressible hemorrhage. The Journal of Trauma and Acute Care Surgery, 89(2), 320‑328.

19. Moataz Elsisy, Bryan W. Tillman, Catherine Go, Jenna Kuhn, Sung K. Cho, William C. Clark, Junkyu Park, and Youngjae Chun. (2020) Comprehensive Assessment of Mechanical Behavior of an Extremely Long Stent Graft to Control Hemorrhage in Torso. Journal of Biomedical Materials Research Part B: Applied Biomaterials, 1‑12.

20. Mahdis Shayan, Neil Gildener-Leapman, Moataz Elsisy, Jack T. Hastings, Shinjae Kwon, Woon‑Hong Yeo, Jee‑Hong Kim, Puneeth Shridhar, Gabrielle Salazar, and Youngjae Chun. (2019) Use of Superelastic Nitinol and Highly‑Stretchable Latex to Develop a Tongue Prosthetic Assist Device and Facilitate Swallowing for Dysphagia Patients. Materials, 12(21), 3555.

21. Youngjae Chun, Yanfei Chen, Moataz Elsisy, Joseph Sukinik, Puneeth Shridhar, Jun‑Kyu Park, Yong Bae Kim, Chang‑Ki Hong, and Joonho Chung. (2019) In vitro and in vivo experiments of a novel intra‑arterial neurovascular decompressor for treating neurovascular compression syndromes: a brief report. Neurological Research, 41(7), 665‑670.

22. Byeong K. Kim, Jae Ung Cho, Kwang Young Jeong, Youngjae Chun, Gregory P. Carman, Seong S. Cheon. (2019) A coupled constitutive relation with impulse-momentum for compressive impact behavior of the expanded polypropylene foam, Polymer Engineering and Science, 59(1), 49‑57.

23. Catherine Go, Youngjae Chun, Jenna Kuhn, Yanfei Chen, Sung Kwon Cho, William W. Clark, Bryan W. Tillman. (2018) Damage control of caval injuries in a porcine model using a retrievable Rescue stent. Journal of Vascular Surgery: Venous and Lymphatic Disorders, 6(5), 646‑656.

24. Connor Howe, Saswat Mishra, Yun‑Soung Kim, Yanfei Chen, Sang‑Ho Ye, William R. Wagner, Jae‑Woong Jeong, Hun‑Soo Byun, Jong‑Hoon Kim, Youngjae Chun, and Woon‑Hong Yeo. (2018) Stretchable, Implantable, Nanostructured Flow-Diverter System for Quantification of Intra‑aneurysmal Hemodynamics, ACS NANO, 12(8), 8706-8716.

25. Yongkuk Lee, Connor Howe, Saswat Mishra, Dong Sup Lee, Musa Mahmood, Mattew Piper, Youngbin Kim, Katie Tieu, Hun‑Soo Byun, James P. Coffey, Mahdis Shayan, Youngjae Chun, Richard M. Costanzo, and Woon‑Hong Yeo. (2018) Wireless, intraoral hybrid electronics for real‑time quantification of sodium intake toward hypertension management, Proceedings of the National Academy of Sciences (PNAS), 115(21), 5377‑5382.

26. Yanfei Chen, Yun‑Soung Kim, Bryan W. Tillman, Woon‑Hong Yeo, and Youngjae Chun. (2018) Advances in Materials for Recent Low‑Profile Implantable Bioelectronics, Materials, 11(4), 522.

27. Saswat Mishra, James J.S. Norton, Yongkuk Lee, Dong Sup Lee, Nicolas Agee, Yanfei Chen, Youngjae Chun, and Woon‑Hong Yeo. (2017) Soft, conformal bioelectronics for a wireless human‑wheelchair interface. Biosensors and Bioelectronics, 91(15), 796-803.

28. Yongkuk Lee, Benjamin Nicholls, Dong Sup Lee, Yanfei Chen, Youngjae Chun, Chee Siang Ang, and Woon‑Hong Yeo. (2017) Soft Electronics Enabled Ergonomic Human‑Computer Interaction for Swallowing Training. Scientific Reports, 7, 46697.

29. Youngjae Chun, Colin P Kealey, Daniel S Levi, David A Rigberg, Yanfei Chen, Bryan W. Tillman, KP Mohanchandra, Mahdis Shayan, and Gregory P Carman. (2017) An in vivo pilot study of a microporous thin film nitinol‑covered stent to assess the effect of porosity and pore geometry on device interaction with the vessel wall. Journal of Biomaterials Applications, 31(8),1196‑1202.

30. Youngjae Chun, Sung Kwon Cho, William W. Clark, William R. Wagner, Xinzhu Gu, Amit D. Tevar, Ryan M. McEnaney, Bryan W. Tillman. (2017) A retrievable rescue stent graft and radiofrequency positioning for rapid control of noncompressible hemorrhage. The Journal of Trauma and Acute Care Surgery, 83(2), 249‑255.

31. Mahdis Shayan, Brian T. Jankowitz, Puneeth Shridhar, and Youngjae Chun. (2016) Use of Micropatterned Thin Film Nitinol in Carotid Stents to Augment Embolic Protection. Journal of Functional Biomaterials, 7(4), 34.

32. Mahdis Shayan, Yanfei Chen, Puneeth Shridhar, Colin P. Kealey, and Youngjae Chun. (2016) In Vitro Study of a Superhydrophilic Thin Film Nitinol Endograft that is Electrostatically Endothelialized in the Catheter Prior to the Endovascular Procedure. Journal of Functional Biomaterials, 7(4), 31.

33. Yanfei Chen, Bryan W. Tillman, Sung Kwon Cho, Tara D. Richards, Amit D. Tevar, Xinzhu Gu, William R. Wagner, and Youngjae Chun. (2016) A novel compartmentalized stent graft to isolate the perfusion of the abdominal organs. Journal of Medical Engineering & Technology, 41(2), 141-150.

34. Puneeth Shridhar, Yanfei Chen, Ramzi Khalil, Anton Plakseychuk, Sung Kwon Cho, Bryan Tillman, Prashant N. Kumta, and YoungJae Chun. (2016) A Review of PMMA Bone Cement and IntraCardiac Embolism. Materials, 9(10): 821.  

35. Bryan W. Tillman, Youngjae Chun, Sung Kwon Cho, Yanfei Chen, Nathan Liang, Timothy Maul CCP, Anthony Demetris, Xinzhu Gu, William R. Wagner, and Amit D. Tevar. (2016) Dual Chamber Stent Prevents Organ Malperfusion in a Model of Donation after Cardiac Death. Surgery, 160(4), 892–901.

36. Yanfei Chen, Mahdis Shayan, Woon‑Hong Yeo, and Youngjae Chun. (2017) Assessment of Endothelial Cell Growth Behavior in Thin Film Nitinol. Biochip Journal, 11(1), 39-45.

37. Mahdis Shayan, Marzyeh Moradi, Anton Y. Plakseychuk, Ravi Shankar, and Youngjae Chun. (2016) Osteoblast Cell Response to Oxide Films Formed on Nanograin 316L Stainless Steel Obtained by Two‑dimensional Linear Plane‑strain Machining. Materials Letters, 177(15), 94–98.

38. Yanfei Chen, Connor Howe, Yongkuk Lee, Seongsik Cheon, Woon‑Hong Yeo, and Youngjae Chun. (2016) Microstructured Thin Film Nitinol for a Neurovascular Flow‑Diverter. Scientific Report, 6: 23698, 1‑10. (DOI: 10.1038/srep23698).

39. Yanfei Chen, Stephen P. Emery, Antonina P. Maxey, Xinzhu Gu, William R. Wagner, and Youngjae Chun. (2016) A Novel Low‑Profile Ventriculoamniotic Shunt for Fetal Aqueductal Stenosis. Journal of Medical Engineering & Technology, 40(4), 186–198.

40. M.H. Babiker, Y. Chun, B. Roszelle, W. Hafner, H. Y. Farsani, L.F. Gonzalez, F. Albuquerque, C. Kealey, D.S. Levi, G.P. Carman, and D.H. Frakes. (2016) In Vitro Investigation of a New Thin Film Nitinol‑Based Neurovascular Flow Diverter. ASME Journal of Medical Devices. (DOI: 10.1115/1.4033015).

41. Mahdis Shayan, Sungyeun Yang, WonHyoung Ryu, and Youngjae Chun. (2015) A Novel Low‑Profile Thin Film Nitinol/Silk Endograft for Treating Small Vascular Diseases. Journal of Biomedical Materials Research Part B: Applied Biomaterials, 1‑10. (DOI: 10.1002/jbm.b.33548).

42. Mahdis Shayan and Youngjae Chun. (2015) An overview of thin film nitinol endovascular devices. Acta Biomaterialia, 21, 20–34.

43. Yanfei Chen, Brian T. Jankowitz, Sung Kwon Cho, Woon‑Hong Yeo, and Youngjae Chun. (2015) A Novel Low‑Profile Flow Sensor for Monitoring of Hemodynamics in Cerebral Aneurysm. Biomaterials and Biomedical Engineering, 2(2), 71–84.

44. Matthew M. Barry, Mahdis Shayan†, Brian T. Jankowitz, Yanfei Chen, Xinjie Duan, Anne M. Robertson, Minking K. Chyu, and Youngjae Chun. (2015) Smart Guidewires for Smooth Navigation in Neurovascular Intervention. ASME Journal of Medical Devices, 9(1), 1–9.

45. Rupal I. Mehta, Rashi I. Mehta, and Youngjae Chun. (2014) Hydrophilic polymer embolism (HPE): an under‑recognized iatrogenic cause of ischemia, inflammation and coagulopathy. Human Pathology, 46(3), 488–489.

46. Brian T. Jankowitz, Mahdis Shayan, Anne M. Robertson and Youngjae Chun. (2014) In vitro assessment of the trackability of neurovascular intermediate catheters: a comparative analysis. Journal of Medical Engineering & Technology, 38(8), 379–384.

47. Mahdis Shayan, Youngjae Chun, Woochul Lim, Minuk Lee, Tae Hee Lee, Byung‑Hyun Min, and Dong‑Gung Lee. (2014) Computational Analysis of the Regenerated Knee Structure after Bone Marrow Stimulation Techniques. Journal of Mechanics in Medicine and Biology, 15(3), 1–11.

48. Mahdis Shayan, Youngsoo Jung, Po‑Shun Huang, Marzyeh Moradi, Anton Y. Plakseychuk, Jung‑Kun Lee, Ravi Shankar, and Youngjae Chun. (2014) Improved Osteoblast Response to UV-Irradiated PMMA/TiO2 Nanocomposites with Controllable Wettability. Journal of Materials Science: Materials in Medicine, 25(12), 2721–2730.

49. Yongha Kim, Youngjae Chun, and Seong S. Cheon. (2014) Shear directional impact characteristics of adhesively bonded tubular joints. Advanced Composite Materials, 24(3), 287–295.

50. Youngjae Chun and Bopaya Bidanda. (2013) Sustainable manufacturing and the role of the International Journal of Production Research. International Journal of Production Research, 51(23-24), 7448–7455.

51. (Invited Paper: Cover Story in Biomaterials) Youngjae Chun. (2012) Hemocompatible Thin Film Nitinol Small Caliber Vascular Stents. Journal of Korean Society of Mechanical Engineers, 52(12), 41–48.

52. C.P. Kealey, Y.J. Chun, F.E. Viñuela, K.P. Mohanchandra, G.P. Carman, F. Viñuela, D.S. Levi. (2012) In vitro and in vivo testing of a novel, hyperelastic thin film nitinol flow diversion stent. Journal of Biomedical Materials Research Part B: Applied Biomaterials, 100(3), 718–725.

53. Allan W. Tulloch, Youngjae Chun, Daniel S. Levi, Kotekar P. Mohanchandra, Gregory P. Carman, Peter F. Lawrence, and David A. Rigberg. (2011) Super hydrophilic thin film nitinol demonstrates reduced platelet adhesion compared with commercially available endograft materials. Journal of Surgical Research, 171(1), 317–322.

54. Youngjae Chun, Po‑Yu Lin, Hsin‑Yun Chang, Michael C. Emmons, K.P. Mohanchandra, Daniel S. Levi, and Gregory P. Carman. (2011) Modeling and experimental analysis of the hyperelastic thin film nitinol. Journal of Intelligent Material Systems and Structures, 22(17), 2045–2051.

55. Youngjae Chun, Soojung Claire Hur, Colin P Kealey, Daniel S Levi, K P Mohanchandra, Dino Di Carlo, Jeff D Eldredge, Fernando Vinuela, and Gregory P Carman. (2011) Intra‑Aneurysmal Flow Reductions in a Thin Film Nitinol Flow Diverter. Smart Materials and Structures, 20(5), 1–10.

56. Kotekar P. Mohanchandra, Youngjae Chun, Sergey V. Prikhodko, and Gregory P. Carman. (2011) TEM characterization of super-hydrophilic Ni-Ti thin film. Materials Letters, 65(8), 1184–1187.

57. C.P. Kealey, S.A. Whelan, Y.J. Chun, C. H. Soojung, A.W. Tulloch, K.P. Mohanchandra, D. Di Carlo, D.S. Levi, G.P. Carman, D.A. Rigberg. (2010) In vitro hemocompatibility of thin film nitinol in stenotic flow conditions. Biomaterials, 31(34), 8864‑8871.

58. Y J Chun, D S Levi, K P Mohanchandra, M C Fishbein and G P Carman. (2010) Novel micro‑patterning processes for thin film NiTi vascular devices. Smart Materials and Structures, 19(10), 1–9.

59. Youngjae Chun, Daniel S. Levi, K.P. Mohanchandra, Gregory P. Carman. (2009) Superhydrophilic surface treatment for thin film NiTi vascular applications. Materials Science and Engineering: C, 29(8), 2436–2441.

60. David Rigberg, Allan Tulloch, Youngjae Chun, Kotekar Panduranga Mohanchandra, Greg Carman, Peter Lawrence. (2009) Thin‑film nitinol (NiTi): A feasibility study for a novel aortic stent graft material. Journal of Vascular Surgery, 50(2), 375–380.

61. [1](Front Cover) Youngjae Chun, Daniel S. Levi, K.P. Mohanchandra, Fernando Vinuela, Fernando Vinuela, Jr., Gregory P. Carman. (2009) Thin film nitinol microstent for aneurysm occlusion. ASME Journal of Biomechanical Engineering, 131(5), 1–8.

62. Eun Sang Lee, Y.J. Chun, J.Y. Jang, Myeong Woo Cho, Won Seung Cho, and J.H. Lee. (2007) In-Process Electrolytic Dressing Lapping (IEDL) of Al2O3-BN Machinable Ceramics. Key Engineering Materials, 336, 1473–1476.

63. Eun Sang Lee, J.H. Lee, W.M. Kim, and Y.J. Chun. (2005). Removal of micro burr by using electrolytic deburring. Journal of the Korean Society of Precision Engineering, 22(9), 20–26.

64. Eun Sang Lee, Y.J. Chun and N.K. Kim. (2005) A study on the optimum condition selection of rotary dressing system of ultra-precision centerless grinding machine for ferrule fabrication. Key Engineering Materials, 291–292,189–194.

[1] This article featured as the “Top 10 Most-Downloaded Articles” in ASME May 2012.

§  INTELLECTURAL PROPERTY: Patent Cooperation Treaty (PCT) and Provisional Patents

1.     Y. Chun, S. Ye, M. Ibrahim. An In-situ Surface Treatment System that Uses Arterial Pulsation to Enhance Hemocompatibility in Endovascular Devices. Provisional Patent Application No. 63/568,094, Priority date: March 21, 2024.

2.     T. Emerick, H. Seresht, G. Chauhan, Y. Chun. Low-Profile Percutaneously Deployable Lead Array System. Provisional Patent Application No. 63/557,002, Priority date: February 28, 2024.

3.     W.W. Clark, Y. Zhang, Y. Chun, B.W. Tillman, S.K. Cho. Magnetic Location Detection. Provisional Patent Application No. 63/340,309, Priority date: May 10, 2022.

4.     W.R. Wagner, S. Kim, Y. Chun, K.W. Nowicki. Bioabsorbable metallic alloy coils coated with a polyurethane-based fatty amide functional groups for treating intracranial aneurysms (IA) and Renal artery aneurysms (RAAs). Provisional Patent Application No. 63/288,847, Priority date: December 12, 2021. 

5.     Y. Chun, M. Elsisy, J. Pacella, W. Yeo, R. Herbert. An arterial pulsation based vascular mechanical property monitoring system for radially expandable self-expanding endoprostheses. Provisional Patent Application No. 63/156466, Priority Date: March 4, 2021. 

6.     B.W. Tillman, Y. Chun. A multi-lumen implantable device. Patent Application No. PCT/US2021/014661, Priority date: January 22, 2021. 

7.     C. Toma, W.R. Wagner, A. D’Amore, Y. Chun. Valved Stent for The Treatment of Tricuspid Regurgitation. Application No. PCT/US2020/039583, Priority date: June 28, 2019, Publication No. WO 2020/264136 A1, Publication date: December 30, 2020. 

8.     B.W. Tillman, Y. Chun, C. Go. Electromagnetic system for rapid cannulation of fenestrated endovascular grafts. Provisional Patent Application No. 16/957,646, Priority date: June 25, 2020.  

9.     Y. Chun, S. Emery, S. Greene, and J. Suknik. Ventriculoamniotic shunt for fetal aqueductal stenosis. Application No. PCT/US2020/035072, Priority date: May 29, 2019, Publication No. WO2020243394A1, Publication date: December 03, 2020.

10.  Y. Chun, P. Carullo. Esophageal temporary occlusion device and method for endotracheal intubation and orogastric tube insertion. Application No. PCT/US2017/057139, Priority date: October 18, 2016, Publication No. WO2018075616A1, Publication date: April 26, 2018. 

11.  Y. Chun, B.T. Jankowitz, S. Cho, Y. Chen, W. Yeo, Y. Lee, C. Howe. Novel ultra-low profile wireless flow sensors to monitor hemodynamic alterations in the vascular system. Application No. PCT/US2017/03462, Priority date: May 27, 2016, Publication No. WO2017205718A1, Publication date: November 30, 2017.

12.  Y. Chen, Y. Chun, S. Emery, X. Gu, W.R. Wagner, S. Greene. A novel low-profile ventriculoamniotic shunt for fetal aqueductal stenosis. Application No. PCT/US2016/056751, Priority date: October 14, 2015, Publication No. WO2017066389A1 Publication date: April 20, 2017. 

13.  J. Chung, Y. Chun. A device for changing the course of a vessel. Patent Application No. KR 10-2016-0165953, Priority date: March 15, 2017. 

14.  V. Badhwar, Y. Chun, A. D’Amore, D.S. Schwartzman, W.R. Wagner. Retrievable self-expanding non-thrombogenic low-profile percutaneous atrioventricular valve prosthesis. Application No. PCT/US2016/019849, Priority date: March 16, 2015, Publication No. US10583004B2, Publication date: September 01, 2016.

15.  V. Badhwar, Y. Chun, A. D’Amore, W.R. Wagner. Double component mandrel for electrospun stentless, multi-leaflet valves fabrication. Application No. PCT/US2016/019837, Publication No. WO2016138416A1, Priority date: March 16, 2015, Publication date: September 01, 2016.

16.  Y. Chun, W.R. Wagner, X. Gu, P. Wearden, and T. Yoshizumi. Superelastic, Bioabsorbable Endovascular Devices. Application No. PCT/US2015/60064, Publication No. WO 2016/077410, Priority date: November 11, 2015, Publication date: May 19, 2016.

17.  B.W. Tillman, A. Tevar, and Y. Chun. Endovascular Apparatus for Perfusing Organs in a Body. Application No. PCT/US2014/068116, Publication No. WO2015119705 A1, Priority date: February 4, 2014, Publication date: August 13, 2015. 

18.  Y. Chun and N. Gildener-Leapman. Intra-Oral Prostheses and Other Anatomical Prostheses. Application No. PCT/US2015/017642, Priority date: February 27, 2014, Publication No. WO2015130879 A1, Publication date: September 3, 2015.

19.  B.W. Tillman, W. Clark, S.K. Cho, and Y. Chun. Perfusion Device for Treating an Injured Blood Vessel. Application No. PCT/US2014/904,063, Priority date: July 12, 2013, Publication No. WO2015006607 A1, Publication date: January 15, 2015.

20.  D.S. Levi, G.P. Carman, A.W. Tulloch, and Y. Chun, and C.P. Kealey. Thin Film Vascular Stent for Arterial Disease. Application No. PCT/US2014/018410, Priority date: February 25, 2013, Publication No. WO2014131037 A1, Publication date: August 28, 2014.

21.  [1]G.P. Carman, D.S. Levi, Y. Chun, and F. Vinuela. Ultra-Low Fractional Area Coverage Flow Diverter for Treating Aneurysms and Vascular Diseases. Application No. US 2011037988 W, Priority date: May 25, 2010, Publication No. WO2011150118 A3, Publication date: April 5, 2012.

22.  D.S. Levi, G.P. Carman, Y. Chun, and F. Vinuela. Thin Film Vascular Stent and Biocompatible Surface Treatment. Application No. PCT/US2010/026430, Priority date: March 6, 2009, Publication No. WO2010102254 A2, Publication date: September 10, 2010. 

§  SELECTED CONFERENCE PRESENTATIONS:

     1.         M. Ibrahim, S. Ye, W. R. Wagner, Y. Chun. A Novel In-situ Hemocompatibility Enhancement in Endovascular Devices through Arterial Pulsation-Driven Surface Modification, 2024 SPIE Smart Structures & NDE, Long Beach, CA, March 24-28, 2024.

     2.         H. Seresht, T. Emerick, G. Chauhan, Y. Chun. A Novel Low-Profile Deployable and Retrievable Epidural Lead Array System, 2024 SPIE Smart Structures & NDE, Long Beach, CA, March 24-28, 2024.

     3.         Mia C. Chupein, Kara X. Nghiem, Kaitlin Chung, Moataz Elsisy, Seungil Kim, William R. Wagner, Youngjae Chun. Superelastic Biodegradable Growing Percutaneous Heart Valve Frame for The Pediatric Patients with Congenital Heart Valve Defects. 2023 BMES Annual Meeting, Seattle Convention Center, Seattle, WA, October 11-14, 2023.

     4.         Dahlia M Kenawy, Jordan F Stafford, Foued Amari, Youngjae Chun, Bryan W Tillman. (2023) A retrievable Aortic Drug Delivery Stentgraft To Create A Porcine Model Of Thoracic Aneurysms, Arteriosclerosis, Thrombosis, and Vascular Biology, October 2nd, 2023.

     5.         Y. Chun, D. S. Levi, F. Vinuella, B. W. Tillman, S. Greene, S. P. Emery. Preclinical Study to Test Novel Minimally Invasive Translational Medical Devices using Various Animal Models. The 9th Asian Federation of Laboratory Animal Science Associations Congress 2023, Jeju Island, South Korea, September 12-15, 2023.

     6.         Y. Chun. A New Coronary Stent System for Continuous Monitoring of In-Stent Restenosis Progression. The 6th International Conference on Active Materials and Soft Mechatronics, Georgia Tech, Atlanta, GA, October 26-29, 2022. 

     7.         D. Kenawy, M. Elsisy, Y. Chun, M. Garcia-Neuer, M. Abdel-Rasoul, W.C. Clark, B.W. Tillman. A Magnetic Sensor-Equipped Retrievable Aortic Rescue Stent Graft for Non-Compressible Torso Hemorrhage, ACS Clinical Congress, San Diego, CA, October 16-20, 2022. 

     8.         Y. Chun, M. Elsisy, R. Herbert, and W. Yeo. Preclinical Benchtop Testing of a New Strain Sensor Embedded Coronary Stent. 2022 BMES Annual Meeting, San Antonio, TX, October 12-15, 2022.

     9.         D. Kenawy, M. Elsisy, Y. Chun, M. Garcia-Neuer, M. Abdel-Rasoul, W.C. Clark, B.W. Tillman. A Magnetic Sensor-Equipped Retrievable Aortic Rescue Stent Graft for Non-Compressible Torso Hemorrhage, 2022 Vascular Annual Meeting, Boston, MA, June 15-18, 2022. 

  10.         D. Kenawy, M. Elsisy, Y. Chun, M. Garcia-Neuer, M. Abdel-Rasoul, W.C. Clark, B.W. Tillman. A Magnetic Sensor-Equipped Retrievable Aortic Rescue Stent Graft for Non-Compressible Torso Hemorrhage, Seattle, WA, May 12-14, 2022. 

  11.         M. Elsisy, S. Kim, S. Ye, K. Chung, W.R. Wagner, Y. Chun. Synergistically Enhanced Functions of Superelastic Nitinol and Biodegradable Metals to Develop a Growing Percutaneous Heart Valve Frame for The Pediatric Patients. Society For Biomaterials, Baltimore, MD, April 27-30, 2022. 

  12.         M. Elsisy, B.W. Tillman, L. Chaou, C. Go, S.K. Cho, Y. Chun. A Novel Dual Chamber Perfusion Stent Graft Using a Smart Nitinol and Highly Stretchable ePTFE to Isolate Blood Flow in Donation after Cardiac Death. Society For Biomaterials, Baltimore, MD, April 27-30, 2022. 

  13.         Y. Chun, M. Elsisy, R. Herbert, and W. Yeo. A novel microsensor embedded coronary artery stent to continuously monitor in-stent restenosis. IEEE NEMS, Virtual Conference, April 14-17, 2022. 

  14.         M. Elsisy, S. P. Emery, S. Greene, N. Hazen, and Y. Chun. A Soft Silicone-Nitinol-ePTFE Ventriculoamniotic Shunt for Treating Fetal Aqueductal Stenosis. BMES 2021, Orlando, FL, October 6-9, 2021.

  15.         M. Elsisy, B.W. Tillman, C. Go, J. Kuhn, and Y. Chun. Enhanced Mechanical Performance in a New Long Retrievable Stent Graft to Control Torso Hemorrhage. BMES 2019, Philadelphia, PA, October 16-19, 2019.

  16.         M. Elsisy, Y. Chen, B.W. Tillman, C. Go, and Y. Chun. A retrievable stent graft for hemorrhage control using laser-welded nitinol stent covered with an ultra‑stretchable ePTFE. IMECE 2018, Pittsburgh, PA, November 9-15, 2018. 

  17.         Y. Chen, B.W. Tillman, C. Go, M. Elsisy, and Y. Chun. A Novel Customizable Stent Graft that Contains Superelastic Nitinol and Highly-Stretchable ePTFE. BMES 2018, Atlanta, GA, October 17-20, 2018.

  18.         G. Bryson, P. Carullo, and Y. Chun. Evaluating Occlusion Success of Esophocclude Prototypes in Comparison to Diameter and Radial Force. BMES 2018, Atlanta, GA, October 17-20, 2018.

  19.         Y. Chen, C. Howe, E. Stephen, S. Greene, P. Shridhar, W. Yeo, and Y. Chun. A low-profile flow sensing system for monitoring of cerebrospinal fluid with a new ventriculoamniotic shunt. IEEE Electronic Components and Technology Conference, Lake Buena Vista, Florida, May 30-June 2, 2017.

  20.         Y. Chen, S.P. Emery, A.P. Maxey, X. Gu, W.R. Wagner, and Y. Chun. In Vitro Assessment of a Novel hunt for Treating Fetal Aqueductal Stenosis. Design of Medical Devices Conference, Minneapolis, Minnesota, April 11-13, 2017.

  21.         P. Shridhar, Y. Chen, B.W. Tillman, S.K. Cho, T.D. Richards, A.D. Tevar, X. Gu, W.R. Wagner, and Y. Chun. A Novel Visceral Perfusion Stent to Salvage Donation after Cardiac Death (DCD) Organs. Design of Medical Devices Conference, Minneapolis, Minnesota, April 11-13, 2017.

  22.         P. Shridhar, B.W. Tillman, Y. Chen, S.K. Cho, and Y. Chun. The Rescue Stent for Non-Compressible Traumatic Hemorrhage. Society for Biomaterials, Minneapolis, Minnesota, April 5-8, 2017.

  23.         M. Shayan, B.T. Jankowitz, B.W. Tillman, and Y. Chun. Novel Embolic Protection Covered Stent with Micropatterned Thin Film Nitinol. Industrial and Systems Engineering Research Conference, Anaheim, CA, May 21-24, 2016. 

  24.         B.W. Tillman, Y. Chun, N.L. Liang, T.D. Richards, A.J. Demetris, T.M. Maul, A.D. Tevar. A Novel Percutaneous Organ Perfusion Stent Improves Liver Perfusion in a Porcine Model of Donation after Cardiac Death. Hepatology, 62(Supplement S1), DOI: 10.1002/hep.28201, 318A–320A, October, 2015.

  25.         N. Gildener-Leapman, M. Shayan, J.H. Kim, P.S. Vosler, and Y. Chun. A novel approach to oral and oropharyngeal dysphasia: Tongue Prosthetic Assist Device (TPAD). The 3rd Congress of European ORL-HNS, Prague, Czech Republic, June 7–11, 2015.

  26.         M. Shayan, M. Moradi, R. Shankar and Y. Chun. Improved MC3T3 cellular growth on nano-grained 316L stainless steel obtained by linear-plane machining severe plastic deformation. Society for Biomaterials, Charlotte, NC, April 15–18, 2015. 

  27.         M. Shayan and Y. Chun. A Novel Metallic Scaffold that Promotes the Rapid Seeding of Endothelial Cells. Society for Biomaterials, Charlotte, NC, April 15–18, 2015. 

  28.         M. Shayan, S.Y. Yang, W.H. Ryu, and Y. Chun. A Novel Thin Film Nitinol/Silk Endograft for Treating Small-Caliber Vascular Diseases. International Conference on Shape Memory and Superelastic Technologies, Pacific Grove, CA, May 12–16, 2014.

  29.         M.M. Barry, M. Shayan, B.T. Jankowitz, Y. Chen, X. Duan, A.M. Robertson, M.K. Chyu, and Y. Chun. A Smart Guidewire for Smooth Navigation in Interventional Radiology. International Conference on Shape Memory and Superelastic Technologies, Pacific Grove, CA, May 12–16, 2014.

  30.         Neil Gildener-Leapman, Mahdis Shayan, Gabrielle Salazar, and Youngjae Chun. A Novel Mechanical Nitinol Prosthetic Tongue. Industrial and Systems Engineering Research Conference, Montreal, Canada, May 31–June 3, 2014.

  31.         Y. Chun, S.C. Hur, M. Shayan, C.P. Kealey, D.S. Levi, K.P. Mohanchandra, D. Di Carlo, and G.P. Carman. A Novel Thin Film Nitinol Covered Neurovascular Stent Significantly Decreases Intra-Aneurysmal Flow In Vitro. 66th Annual Meeting of the APS Division of Fluid Dynamics, Pittsburgh, PA, November 24–26, 2013.

  32.         M. Shayan, S. Yang, W. Ryu, and Y. Chun. Synergistically Enhanced Functions of Endograft by Integrating Thin Layers of Nitinol and Silk. Biomedical Engineering Society, Seattle, WA, September 25–28, 2013.

  33.         M. Shayan, Y. Jung, P.S. Huang, M. Moradi, J.K. Lee, R. Shankar, and Y. Chun. Improved Osteoblast Response to UV-Irradiated Superhydrophilic PMMA/TiO2 Nanocomposites. Society for Biomaterials, Boston, MA, April 10–13, 2013.

  34.         Y. Chun, D.S. Levi, K.P. Mohanchandra, C.P. Kealey, H. Babiker, D.H. Frakes, S.C. Hur. A.W. Tulloch, D.A. Rigberg, D. Di Carlo, F. Vinuela, and G.P. Carman. A Novel Thin Film NiTi (TFN) Device for Cerebral Aneurysm Treatment. 8th European Solid Mechanics Conference, Graz, Austria, July 8–13, 2012.    

  35.         Y. Chun, D.S. Levi, K.P. Mohanchandra, C.P. Kealey, H. Babiker, D.H. Frakes, S.C. Hur, H. Chang, M.C. Emmons, P.Y. Lin, A.W. Tulloch, D.A. Rigberg, D. Di Carlo, F. Vinuela Jr, F. Vinuela, and G.P. Carman. A Novel Flow-Diverting Thin Film Nitinol (TFN) Covered Microstent. Industrial and Systems Engineering Research Conference, Orlando, FL, May 19–23, 2012.

  36.         H. Babiker, C.P. Kealey, Y. Chun, G.P. Carman, D.S. Levi, and D.H. Frakes. In-vitro Fluid Dynamic Investigation of a Novel Hyper Elastic-Thin Film Nitinol Stent and the Pipeline Embolization Device for Cerebral Aneurysm Treatment. International Stroke Conference, New Orleans, LA, February 01–03, 2012.

  37.         H. Babiker, Y. Chun, C.P. Kealey, G.P. Carman, D.S. Levi, D.H. Frakes. Experimental Fluid Dynamic Investigation of a Novel Hyper-Elastic Thin Film for Cerebral Aneurysm Treatment. ASME Summer Bioengineering Conference, Farmington, PA, June 22–25, 2011.

  38.         G.P. Carman, Y. Chun, K.P. Mohanchandra, D.S. Levi, C.P. Kealey, C.S. Hur, D. Di Carlo, and F. Vinuela. A Hyper-Elastic Thin Film Nitinol Flow Diverter for Brain Aneurysms. Minerals, Metals & Materials Society, San Diego, CA, March 01–04, 2011.

  39.         C.P. Kealey, H. Babiker, Y. Chun, P. Lin, K.P. Mohanchandra, D.A. Rigberg, G.P. Carman, D.S. Levi, and D.H. Frakes. In VitroEvaluation of a Novel Hyper-Elastic Thin Film Nitinol Covered Stent for the Treatment of Intracranial Aneurysms. International Stroke Conference, Los Angeles, CA, February 09–11, 2011.

  40.         D.A. Rigberg, D.S. Levi, G.P. Carman, Y. Chun, K.P. Mohanchandra, C.P. Kealey. The Development And Characterization of Next Generation Endovascular Devices Using Thin Film NItinol. The 2010 VEITH symposium, 38th Annual Symposium on Vascular and Endovascular Issues, New York, NY, November 16–20, 2010.

  41.         Y. Chun, S.C. Hur, C.P. Kealey, A.W. Tulloch, D.S. Levi, D. Di Carlo, H. Chang, K.P. Mohanchandra, D.A. Rigberg, P.F. Lawrence, and G.P. Carman. A Novel Neurovascular Stent Covered in Stretchable Thin Film NiTi Significantly Decreases Flow into a Wide‑Neck Aneurysm In Vitro. American Society for Artificial Internal Organs, Baltimore, MD, May 27–29, 2010.

  42.         C.P. Kealey, Y. Chun, A.W. Tulloch, D.S. Levi, K.P. Mohanchandra, G.P. Carman, P.F. Lawrence, and D.A. Rigberg. An In Vitro Examination of the Thrombotic Response to Thin Film Nickel Titanium (Nitinol) Under Stenotic Flow Conditions. Arteriosclerosis, Thrombosis and Vascular Biology, San Francisco, CA, April 8–10, 2010.

  43.         Y. Chun, D.S. Levi, A.W. Tulloch, K.P. Mohanchandra, D.A. Rigberg, F. Vinuela, F. Vinuela Jr., P.F. Lawrence, and G.P. Carman. Micro-patterned Superhydrophilic Thin Film NiTi Endografts for Treating Vascular Diseases. International Conference on Shape Memory and Superelastic Technologies, Pacific Grove, CA, May 16–20, 2010.

  44.         A.W. Tulloch, Y. Chun, A. Chau, K.P. Mohanchandra, G.P. Carman, P.F. Lawrence, and D.A. Rigberg. Thin-film nickel titanium demonstrates reduced bacterial adherence in vitro compared with commercially available endograft materials. American College of Surgeons 95th Annual Clinical Congress, Chicago, IL, October 11–15, 2009.

  45.         Y. Chun, D.S. Levi, K.P. Mohanchandra and G.P. Carman. Fabrication Processes for Creating Micro Features in Thin Film NiTi Endovascular Grafts. ASME Conference on Smart Materials, Adaptive Structures and Intelligent Systems, Oxnard, CA, September 20–24, 2009.

  46.         Y. Chun, A.W. Tulloch, D.S. Levi, K.P. Mohanchandra, F. Vinuela, D.A. Rigberg, and G.P. Carman. Less Thrombogenic Surface of Thin Film Nitinol for Endovascular Grafts. 22nd European Conference on Biomaterials, Lausanne, Switzerland, September 7–11, 2009.

  47.         Y. Chun, D.S. Levi, K.P. Mohanchandra, and G.P. Carman. Self-expandable Thin Film Nitinol Endografts for Vascular Repair: Manufacturing and Short-Term Results in Swine. 4th Frontiers in Biomedical Devices Conference & Exhibition, 2009-83048, Irvine, CA, June 08–09, 2009.

  48.         A.W. Tulloch, Y. Chun, D.S. Levi, K.P. Mohanchandra, G.P. Carman, P.F. Lawrence, D.A. Rigberg. Hydrophilic Surface Treatment of Thin Film Nickel Titanium Reduces Platelet Adhesion and Aggregation in vitro and Prevents Endograft Thrombosis in vivo. SVS 2009 Research Initiatives in Vascular Disease Conference, Washington, DC, April 28, 2009.

  49.         D.A. Rigberg, Y. Chun, K.P. Mohachandra, G.P. Carman, P.F. Lawrence. Thin Film Nitinol (NiTi): A Novel Material for Aortic Stent Grafts. Western Vascular Society 23rd Annual Meeting, Napa, CA, September 13–16, 2008.

  50.         Y. Chun, K.P. Mohanchandra, L. Stepan, D.S. Levi, and G.P. Carman. Manufacturing and Testing of Thin Film NiTi for Biomedical Applications. 44th Annual Technical Meeting of the Society of Engineering Science, Texas A&M University, College Station, TX, October 21–24, 2007.

[1] Monarch Biosciences, Inc. (MonarchBio), a California-based life sciences company, which recently successfully prosecuted four patent applications (NO. 16/298,758, 16/010,341, 15/605,754, 16/048,136) and other related applications to develop and commercialize thin film nitinol endovascular devices.