61. S. Ritchie, S. Kovacevic, P. Deshmukh, A. Christodoulides, J. Malen, S. D. Mesarovic, and R. P. Panat, “Shape distortion in sintering results from nonhomogeneous temperature activating a long-range mass transport,” Nature Communications, 14, 2667 (2023). DOI, PDF, video.
Here, we discover why part distortion happens in sintering-based AM processes!
59. J. Brenneman, M. Lovalekar, and R. P. Panat, “A Semi‐Empirical Model for Post‐yield Stress‐instability in the Stress‐Strain Response of Three‐dimensional Lattice Structures Under Compressive Loads,” Advanced Engineering Materials, 202201428 (2023). DOI, PDF.
58. M. S. Saleh, S. Ritchie, M. A. Nicholas, H. L. Gordon, C. Hu, S. Jahan, B. Yuan, R. Bezbaruah, J. W. Reddy, Z. Ahmed, M. Chamanzar, E. A. Yttri, and R. P. Panat, “CMU Array: A 3D Nano-Printed, Highly Customizable High-Density Microelectrode Array Platform,” Science Advances, 8, eabj4853, (2022). DOI, Journal image, PDF
57. M. A. Ali, G. Fei Zhang, C. Hu, B. Yuan, S. Jahan, G. D. Kitsios, A. Morris, S.-J. Gao, R. P. Panat, “Ultra-Rapid and Ultra-Sensitive Detection of SARS-CoV-2 Antibodies in COVID-19 Patients via A 3D-Printed Nanomaterial-Based Biosensing Platform,” Journal of Medical Virology, 94 (12) 5808-5826, (2022). DOI PDF Journal Cover Image
Impact factor = 20.6, provided as many engineers may be unfamiliar with this journal
Front Cover Caption: The cover image is based on the Research Article Ultrarapid and ultrasensitive detection of SARS-CoV-2 antibodies in COVID-19 patients via a 3D-printed nanomaterial-based biosensing platform by Md. Azahar Ali et al., .
56. J. Brenneman, D. Z. Tansel, G. K. Fedder, and R. P. , “High-conductivity crack-free three-dimensional electrical interconnects directly printed on soft PDMS substrates“, Advanced Materials Technologies, 2200396, 1-15 2022. DOI PDF
54. M. A. Ali, C. Hu, F. Zhang, S. Jahan, B. Yuan, M. S. Saleh, S.-J. Gao, R. Panat, “N-protein based Ultrasensitive SARS-CoV-2 Antibody Detection in Seconds via 3D Nanoprinted Microarchitected Array Electrodes”, Journal of Medical Virology, 2022; 1 – 12. DOI PDF
53. M. A. Ali, C. Hu, B. Yuan, S. Jahan, M. S. Saleh, Z. Guo, A. J. Gellman, R. Panat, “Breaking the barrier to biomolecule limit-of-detection via 3D printed multi-length-scale graphene-coated electrodes”, Nature Communications, 12(1),7077-1 to 7077-16, 2021. DOI PDF
51. M. A. Ali, C. Hu, S. Jahan, B. Yuan, M. S. Saleh, E. Ju, S.-J. Gao, and R. Panat, “Sensing of COVID-19 Antibodies in Seconds via Aerosol Jet Printed Three Dimensional Electrodes”, Advanced Materials, 33(7) 2006647, 2021. PDF; DOI; Selected for Adv Mater Cover Image
Our group has achieved testing of COVID-19 antibodies in 10 seconds!!
Cover of Adv Mater: In article number 2006647, Rahul Panat and co‐workers report the development of a 10‐second COVID‐19 antibody test that represents the fastest detection of this pathogen biomarker. The test uses an electrochemical cell consisting of aerosol jet nanoprinted 3D micropillar electrodes coated with reduced graphene oxide and viral antigens. This generic platform could be a game‐changer in controlling the spread of infectious diseases during pandemics.
50. P. Borade, M. A. Ali, S. Jahan, T. Sant, K. Bogle, R. Panat, S. Jejurikar, “MoS2 Nanosheet-Modified NiO Layers on Conducting Carbon Paper for Glucose Sensing”, ACS Applied Nano Materials, 4, pp.6609-6619 (2021). PDF
48. J. Brenneman, D. Tansel, G. Fedder, and R. Panat, “Interfacial Delamination and Delamination Mechanism Maps for 3D Printed Flexible Electrical Interconnects”, Extreme Mechanics Letters, 43, pp. 101199 (2021). PDF DOI
This work appeared on the cover of vol. 43 of EML.
47. M. Sadeq Saleh§, C. Hu§, J. Brenneman, A. M. A. Mutairi, and R. Panat, “3D Printed Three-dimensional Metallic Microlattices with Controlled and Tunable Mechanical Properties via Aerosol Jet 3D Printing”, Additive Manufacturing, 39, 101856 (2021). PDF, DOI
§ Equal contribution
46. M. Hamid, S. Saleh, A. Afrozian, R. Panat, and H. Zbib, “Modeling of porosity and grain size effects on mechanical behavior of additively manufactured structures”, Additive Manufacturing, 28, pp. 101833, 2021. PDF, DOI
45. P. Borade, T. Sant, A. Gokarna, K. Joshi, R. Panat, S. Jejurikar, “Role of defects in modulating the near band edge emissions of sub-micron ZnO crystals”, Optical Materials, 109, pp. 110348, 2020. PDF; DOI
44. Y. Zhu, J. Li, M. S. Saleh, R. Panat, J. Park, “Towards High-Performance Li-ion Batteries via Optimized Three-dimensional Micro-lattice Electrode Architectures”, Journal of Power Sources, 476, 228593, 1-18, 2020. PDF; DOI
43. D. Tansel, J. Brenneman, G. Fedder, R. Panat, “Mechanical Characterization of Polydimethylsiloxane (PDMS) Exposed to Thermal Histories up to 300 °C in a Vacuum Environment”, Journal of Micromechanics and Microengineering, 30, pp. 067001, 2020. PDF
42. B., Mallesham, F. Manciu, S. Tan, R. Panat, C. V. Ramana, ” Unravelling the Sintering Temperature Induced Phase Transformations in Ba(Fe0.7Ta0.3)O3-δ Ceramics”, Ceramics International, 46 (14), pp. 23257, 2020. PDF
40. Md T. Rahman, C. H. Cheng, B. Karagoz, M. Renn, M. Schrandt, A. Gellman, and R. Panat, “High Performance Flexible Temperature Sensors via Nanoparticle Printing”, ACS Applied Nano Materials, Vol. 2, Issue 5, pp. 3280-3291 (2019). PDF
Nanoparticles of Cu and CuNi were printed on a flexible Kapton substrates and sintered using a low-power laser. The resulting temperature sensor has linear repeatable response with the highest sensitivity in film based sensors yet reported in literature and extremely high strain tolerance to 200 cycles of bending (to three radii) and twisting. TEM work shows nanoparticles with varying degree of coalescence with connections that may act as springs to give rise to the high strain tolerance.
39. S. Manandhar, A. Battu, S. Tan, R. Panat, V. Shutthanandan, C. V . Ramana, “Effect of Ti Doping on the Crystallography, Phase, Surface/Interface Structure and Optical Band Gap of Ga2O3 Thin Films”, Journal of Materials Science, 54, pp.11526–11537 (2019). PDF
38. R. Danaei, T. Varghese, M. Ahmadzadeh, J. McCloy, C. Hollar, M. Sadeq Saleh, J. Park, Y. Zhang, R. Panat, “Ultrafast Fabrication of Thermoelectric Films by Pulsed Light Sintering of Colloidal Nanoparticles on Flexible and Rigid Substrates”, Advanced Engineering Materials, 21, pp. 1800800 (2019).PDF
37. Y. Arafat, S. T. Sultana, I. Dutta, R. Panat, “Effect of Additives on the Microstructure of Electroplated Tin Films”, Journal of the Electrochemical Society, 165 (16), D816-D824 (2018). PDF
Interesting Sn microstructures never obtained before were realized by changing additives to a methanesulfonic acid electroplating bath. See paper for complete characterization including cathodic polarization plots and mechanisms of film formation.
36. R. Panat, J.Park, M. S. Saleh, and J. Li, “3D-Printed Lattice Batteries”, Homeland Defense Information Analysis Center (HDIAC) Journal, 5 (4), pp. 11 (2018). PDF
35. J. Li, X. Liang, R. Panat, and J. Park, “Enhanced Battery Performance through Three-Dimensional Structured Electrodes: Experimental and Modeling Study” Journal of the Electrochemical Society, 165 (14), A3566-A3573 (2018). PDF
34a. “3D printing of Li-ion Battery Electrodes”, article about our work in the Tribology and Lubrication Technology Magazine, Nov 2018. PDF
34. M. Sadeq Saleh, Jie Li, Jonghyun Park, and Rahul Panat, “3D Printed Hierarchically-Porous Microlattice Electrode Materials for Exceptionally High Specific Capacity and Areal Capacity Lithium Ion Batteries”, Additive Manufacturing, Vol.23, pp 70-78 (2018). PDF
The research appeared in several media outlets including Forbes Magazine….
1- Forbes Magazine: See How This New 3D Printing Method Could Make Your Smartphone Last Longer
2- Green Car Congress: CMU-led team develops 3D printing method for exceptionally high capacity batteries
4- Printed electronics: 3D printing the next generation of batteries
5- 3D Printing Industry: 3D Printing creates major advance for longer lasting batteries
6- CMU news: 3D Printing the next generation of batteries
7- German Media: New “Aerosol Jet” method relies on 3D printing for electrodes of lithium-ion batteries and promises longer battery life
8- Japanese media: 3D打印技术造出微观多孔锂电池，容量提升了4倍
32. M. Sadeq Saleh, Mehdi HamidVishkasougheh, H. Zbib, and R. Panat, “Polycrystalline Micropillars by a Novel 3-D Printing Method and Their Behavior under Compressive Loads”, Scripta Materialia, Volume 149, 144–149, 2018. PDF
31. M. T. Rahman, R. Moser, H. Zbib, C. V. Ramana, and R. Panat, “3D Printed High Performance High Temperature Sensors”, Journal of Applied Physics, 123, 024501, 2018. PDF
11. Rahul Panat, Jie Li, Jonghyun Park, Mohammad Sadeq Saleh, “Three-dimensional lattice batteries via additive manufacturing” U.S. Provisional Patent Application No. 62/766,151, filed Oct. 4, 2018. PDF
10. R. Panat, J. Park, M. S. Saleh, and J. Lie, “Three-dimensional lattice batteries via additive manufacturing” U.S. Patent Application #16/593,622, filed October 2019. PDF
9. R. Panat, E. Yttri, and M. S. Saleh, “3D Printed Microelectrode Array,” U.S. Patent Application Filed PCT/US2019/016050, filed February 2019. PDF
8. T. C. Karni, R. Garg, S. Rastogi, R. Panat, and M. S. Saleh, “Nanowire-Mesh Templated Growth of Out-of-Plane Three-Dimensional Fuzzy Graphene”, U.S. Patent Application # WO/2018/195108, filed April 2018. Link
7. R. Panat and D. Heo, “Three-dimensional sub-mm wavelength sub-THz frequency antennas on flexible and in-situ cured dielectric using printed metal structures”, U.S. Patent # 10086432, issued Oct 2018. PDF
6. R. Panat and D. Heo, “Three-dimensional passive components”, U.S. Patent #9969001, issued May 2018. PDF
5. R. Panat and L. Lei, “Low-cost fiber optic sensor for large strain”, US Patent #9846276, issued December 2017. PDF
4. I. Dutta and R. Panat,” Highly stretchable interconnect devices and systems”, US Patent #9770759, issued Sept 2017. PDF
3. R. Panat and B. Jaiswal, “Nanowires coated on traces in electronic devices”, US Patent #9627320, issued April 2017. PDF
2. N. Raravikar and R. Panat, “Nanolithographic method of manufacturing an embedded passive device for a microelectronic application, and microelectronic device containing the same”, US Patent #8068328, issued May 2014. PDF
1. R. Panat, M. S. Saleh, “Additive manufacturing of porous scaffold structures”, U. S. Patent Application # 14/957,849, filed Dec 2015. PDF