Samuel Root

Prior to Joining CWRU

Leading Author Journal Articles († indicates equal contribution) (Listed in Reverse Chronological Order)

1. Zhao, C.; † Park, J.; † Root, S. E.; † Bao, Z.*; Skin-inspired soft biolectronic materials, devices, and systems. Nature Reviews Bioengineering, 2024

2. Cooper, C.†; Root, S. E.†; Michalek, L.; Wu, S.; Lai, J-C.; Khatib, M.; Oyakhire, S.; Zhao, R.; Qin, J.; Bao, Z.*; Autonomous alignment and self-healing in multilayer soft electronics using dynamic polymers with immiscible backbones. Science, 2023

3. Li, Y.†; Root, S. E.†; Belding, L.; Park, J.; Yoon, H. J.; Huang, C.; Baghbanzadeh, M.; Whitesides, G. M.*, Charge Transport Measured Using the EGaIn Junction Through Self-Assembled Monolayers Immersed in Organic Solvents. Journal of Physical Chemistry B, 2023

4. Root, S. E. †; Sanchez, V.†; Tracz, J.A.†; Preston, Whitesides, G. M.*, An Expanding Foam-Fabric Orthopedic Cast. Advanced Materials Technologies, 2022

5. Root, S. E.; Preston, D. J.; Nemitz, M. P.; Belding, L.; Alcoran, R.; Fiefke, G.; Whitesides, G. M.*, Bio-inspired design of soft mechanisms using a toroidal hydrostat. Cell Press Reports Physical Science, 2021, 2, 100572 Citations: 6

6. Root, S. E. †; Gao, R.†; Ge, S.; Whitesides, G. M.; Estimating the Density of Thin Polymeric Films using Magnetic Levitation. ACS Nano, 2021

7. Li, Y.†; Root, S.  E†; Baghbanzadeh, M.; Campbell V. E.; Rothemund, P. Cafferty, B. J.; Whitesides, G. M.*, Characterizing Chelation at Surfaces by Charge Tunneling. Journal of the American Chemical Society 2021

8. Belding, L.*; Root, S. E.*; Li, Y.; Park, J.; Rojas, E.; Pieters, P.; Whitesides, G. M.*, Conformation, and Charge Tunneling Through Molecules in Self-Assembled Monolayers. Journal of the American Chemical Society 2021

9. Runser, R.†; Root, S. E.†, Ober, D. E.; Choudhary, K.; Chen, A. X.; Dhong, C.; Urbina, A. D.; Lipomi, D.J.*, Interfacial Drawing: Roll-to-Roll Coating of Semiconducting Polymer and Barrier Films on Plastic Foils and Textiles Chemistry of Materials 2019

10. Root, S. E.; Carpenter, C.W.; Kayser, L. V.; Rodriquez, D.;  Davies, D. M.; Wang, S.; Tan, S. T. M.; Meng, Y. S.; Lipomi, D. J.*, Ionotactile Stimulation: Ionic Gels for Haptic Human-Machine Interfaces ACS Omega 2018, 662-668

11. Alkhadra, M. A.†; Root, S. E.†; Hilby, K. M.; Rodriquez, D.; Sugiyama, F.; Lipomi, D. J.*, Quantifying the Fracture Behavior of Brittle and Ductile Thin Films of Semiconducting Polymers, Chemistry of Materials 2017

12. Root, S. E.†; Alkhadra, M. A.†; Rodriquez, D.; Printz, A. D.; Lipomi, D. J.*, Measuring the Glass Transition Temperature of Conjugated Polymer Films with Ultraviolet-Visible Spectroscopy. Chemistry of Materials 2017 (Lectureship & Best Paper Award) 

13. Root, S. E.; Savagatrup, S.; Printz, A. D.; Rodriquez, D.; Lipomi, D. J.*, Mechanical Properties of Organic Semiconductors for Stretchable, Highly Flexible, and Mechanically Robust Electronics. Chemical Reviews 2017 (selected as ACS Editors’ Choice) 

14. Root, S. E.; Jackson, N. E.; Savagatrup, S.; Arya, G.; Lipomi, D. J.*, Modelling the Morphology and Mechanical Behaviour of Low-Bandgap Conjugated Polymers and Bulk Heterojunction Films. Energy & Environmental Science 2017 (featured as a hot article) 

15. Root, S. E.; Savagatrup, S.; Pais, C. J.; Arya, G.; Lipomi, D. J.*, Predicting the Mechanical Properties of Organic Semiconductors Using Coarse-Grained Molecular Dynamics Simulations. Macromolecules 2016

Contributing Author Journal Articles (Listed in Reverse Chronological Order)

16. A. Berman†; K. Hsiao†; S. E. Root; H. Choi; D. Ilyn; C. Xu; E. Stein; M. Cutkoskyl J. M. Desimone*; Z. Bao* Additively manufactured micro-lattice dielectrics for multiaxial capacitive sensors, Science Advances, 2024

17. E. Kim; J.-C. Lai; L, Michalek, W. Wang, C. Xu, H. Lyu, W. Yu, H. Park, Y. Tomo, S. E. Root; B. Lee; J. Park; S. Wei; C. Zhao; Z. Bao* A Transparent, Patternable, and Stretchable Conducting Polymer Solid Electrode for Dielectric Elastomer Actuators, Advanced Functional Materials, 2024

18. Kim, K. K.†; Kim, M.†; Pyun, K.; Kim, J.; Min, J.; Koh, S.; Root, S. E.; Kim, J.; Nguyen, B. N. T.; Nishio, Y.; Han, S.; Choi, J.; Kim, C.Y.; Tok, J. B.-H.; Jo, S.; Ko, S. H.*; Bao, Z.*, A Substrate-Less Nanomesh Receptor with Meta-Learning for Rapid Hand Task Recognition, Nature Electronics, 2023

19. Peña-Alcántara, A.l Nikzad, S.; Prine, N.; Wang, Y.; Michalek, L.; Gong, H.; Ponte, E.; Schneider, S.; Wu, Y.; Root, S.E.; Tok, J.B.-H.; Gu, X.*; Bao, Z.*; Effect of Molecular Weight on the Morphology of a Polymer Semiconductor Blended with a Thermoplastic Elastomer, Advanced Electronic Matrials, 2023

20. Gao, R.†; Kodaimati, M. O.†; Handy, K.; Root, S. E.; Whitesides, G. M.*, Generating Oscillatory Behavior by Applying a Magnetic Field During the Electrocatalytic Oxidation of Glycerol Journal of Physical Chemistry C, 2022

21. Decker, C. J.†; Jiang, H. J.†; Nemitz, M. P.; Root, S. E.; Rajappan, A.; Alvarez, J . T.; Tracz, J., Wille, L.; Preston, D.J.; Whitesides, G. M.*; Programmable Soft Valves for Digital and Analog Control, Proceedings of the National Academy of Sciences, 2022

22. Tracz, J. A.; Wille, L.; Pathiraja, D.; Kendre, S. V.; Pfisterer, R.; Turett, E.; Abrahamsson, C. K.; Root, S. E.; Lee, W. K.; Preston, D. J.; Jiang, H. J.; Whitesides, G. M.*; Nemitz, M. P.*; Tube-Balloon Logic for the Exploration of Fluidic Control Elements IEEE Robotics and Automation Letters,

23. Park, J.; Kodaimati, M. A.; Belding, L.; Root, S. E.; Schatz, G.; Whitesides, G. M.*, Controlled Hysteresis of Conductance in Molecular Tunneling Junctions, ACS Nano, 2022

24. Kodaimati, M. A.†; Gao, R.†; Root, S. E.; Whitesides, G. M.*, Magnetic Fields Enhance Mass Transport During Electrocatalytic Reduction of CO2, Chem Catalysis, 2022

25. Nagarkar, A.; Root, S. E.; Fink, M. J.; Ten, A. S.; Cafferty, B. J.; Richardson, D. S.; Mrksich, M.; Whitesides, G. M.*, Storing and Reading Information in Mixtures of Fluorescent Molecules. ACS Central Science 2021

26. Park, J.; Belding, L.; Li, Y.; Mousavi, M.; Root, S. E.; Yoon, H. J.; Whitesides, G. M.*, Rectification in Molecular Tunneling Junctions based on Alkanethiolates with Bipyridine-Metal Complexes, Journal of The American Chemical Society, 2021

27. Carpenter, C.W.;  Malinao, M.G.; Rafeedi, T.A.; Rodriquez, D.; Tan, S.T.M.; Root, N.B.; Skelil, K.; Ramirez, J.; Polat, B.; Root, S.E.; Ramachandran, V.S.; Lipomi, D.J.*, Electropneumotactile Stimulation: Multimodal Haptic Actuators Enabled by a Stretchable Conductive Polymer on Inflatable Pockets Advanced Materials Technologies, 2020

28. Sugiyama, F.; Kleinschmidt, A. T.; Kayser, L.V.; Rodriquez, D.; Fin, M. F.; Alkhadra, M. A.;  Wan, J. M. H.; Chiang, A. S. C..; Ramirez, J.; Root, S. E.; Lipomi, D. J.*, Effects of Flexibility and  Branching of Side Chains on the Mechanical Properties of Low-Bandgap Copolymers Polymer Chemistry, 2018

29. Sugiyama, F.; Kleinschmidt, Kayser, L.V.; Alkhadra, M. A.; Wan, J. M. H.; Chiang, A. S. C.; Rodriquez, D.; Root, S. E.; Lipomi, D. J.*, Stretchable and Degradable Semiconducting Block Copolymers Macromolecules, 2018

30. Rodriquez, D.; Kohl, G.; Morel, P.; Burrows, K.; Favaro, G.; Root, S. E.; Ramirez, J.; Alkhadra, M.A.; Carpenter, C. W.; Fei, Z.; Boufflet, P.; Heeney, M.; Lipomi, D. J.*, Measurement of Cohesion and Adhesion of Semiconducting Polymers by Scratch Testing: Effect of Side-Chain Length and Degree of Polymerization Macroletters, 2018

31. Kleinschmidt, A. T.; Root, S. E.; Lipomi, D. J.*, Poly (3-hexylthiophene) (P3HT): Fruit Fly or Outlier in Organic Solar Cell Research? Journal of Materials Chemistry A 2017

32. Marin, B. C.; Root, S. E.; Urbina, A. D.; Alklile, E.; Miller, R.; Zaretski, A. V.; Lipomi, D. J.*, Graphene-Metal Composites with Near-Zero Temperature Coefficient of Resistance ACS Omega  2017, 2, 626-630.

33. Marin, B. C.; Ramirez, J.; Root, S. E., Aklile, E.; Lipomi, D. J.*, Metallic Nanoislands on Graphene: A Metamaterial for Chemical, Mechanical, Optical, and Biological Applications. Nanoscale Horizons 2017, 2, 311-318.

34. O’Connor, T. F.; Fach, M. E.; Miller, R.; Root, S. E.; Mercier, P. P.; Lipomi, D. J.*, The Language of Glove: Wireless gesture decoder with low-power and stretchable hybrid electronics. PloS one 2017, 12, 1-12.

35. Rodriquez, D.†; Kim, J.H.†; Root, S. E.; Fei, Z.; Boufflet, P.; Heeney, M.; Kim, T. S.*; Lipomi, D. J.*, Comparison of Methods for Determining the Mechanical Properties of Semiconducting Polymer Films for Stretchable Electronics Applied Materials & Interfaces 2017, 9, 8855-8862.

36. Zaretski, A. V.; Root, S. E.; Savchenko, A.; Molokanova, E.; Printz, A. D.; Jibril, L.; Arya, G.; Mercola, M.; Lipomi, D. J.*, Metallic Nanoislands on Graphene as Highly Sensitive Transducers of Mechanical, Biological, and Optical Signals. Nano Letters 2016,16, 1375-1380

37. Savagatrup, S.; Printz, A. D.; O’Connor, T. F.; Zaretski, A. V.; Rodriquez, D.; Sawyer, E. J.; Rajan, K. M.; Acosta, R. I.; Root, S. E.; Lipomi, D. J.*, Mechanical Degradation and Stability of Organic Solar Cells: Molecular and Microstructural Determinants. Energy & Environmental Science 2015, 8, 55–80.

Textbook Chapters

1. Alkhadra, M. A.; Kleinschmidt, A. T.; Root, S. E.; Rodriquez, D.; Printz, A. D.; Savagatrup, S.; Lipomi, D. J. Mechanical Properties of Semiconducting Polymers, Conjugated Polymers: Properties, Processing, and Applications 2019 CRC Press

Patents

1. Root, S.E.; Fazzini, J.A.; Sanchez, V.; Preston, D.J.; Whitesides, G.M., “Expanding Foam-Fabric Orthopedic Limb Stabilization Device,” U.S. Provisional Patent Application No: 62/923,938, filed October 21, 2019. PCT Application, filed October 21, 2020.
2. Sakamoto, J.; Ten, A.; Kodaimati, M. S.; Jiang, H. J.; Nagarkar, A.; Root, S. E.; Whitesides, G. M., “Polyphosphate Materials” U.S. Provisional Patent Application No. 63/248691; WH Ref. No.: 42697.579US1
3. Cooper, C. B.; Root, S. E.; Bao, Z.; “Multi-layer self-healing apparatuses and methods” U.S. Provisional Patent Application No. 63/440,656, January 23, 2023