п»ї Publications – The Root Lab

Publications

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2025

40. A damage-perceptive, self-healing electronic skin with millimeter resolution

S. E. Root, C. Wu, H. Choi, E. Sun, G. Ngaruka, H. Park, A. L. Ramos Figueroa, A. Berman, D. U. Patino, Y. Shi, C. Pugh, and Z. Bao†

under review at Cell Press Device

2024

39. Additively manufactured micro-lattice dielectrics for multiaxial capacitive sensors

A. Berman*; K. Hsiao*; S. E. Root; H. Choi; D. Ilyn; C. Xu; E. Stein; M. Cutkoskyl J. M. Desimone†; Z. Bao†

Science Advances, 2024

38. A Transparent, Patternable, and Stretchable Conducting Polymer Solid Electrode for Dielectric Elastomer Actuators

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†

Advanced Functional Materials, 2024

37. Skin-inspired soft biolectronic materials, devices and systems

Fig. 1

C. Zhao*; J. Park*; S. E. Root*; Z. Bao†

Nature Reviews Bioengineering, 2024

2023

36. Spiral NeuroString: High-Density Soft Bioelectronic Fibers for Multimodal Sensing and Stimulation

Khatib, M.*; Zhao, E. R.*; Wei, S.*; Abramson, A.; Bishop, E. B.; Chen, C.-H.; Thomas, A.-L.; Xu, C.; Park, J.; Lee, Y.; Hamnett, R.; Yu, W.; Root, S. E.; Yuan, L.; Chakhtoura, D.; Kim, K. K.; Zhong, D.; Nishio, Y.; Zhao, C.; Wu, C.; Jiang, Y.; Zhang, A.; Li, J.; Wang, W.; Salimi-Jazi, F.; Rafeeqi, T. A.; Hemed, N. M.; Tok, J.B.H.; Chen, X.; Kaltschmidt, J. A.; Dunn, J.; Bao, Z.†

BioRXIV, 2023

35.  Autonomous alignment and healing in multilayer soft electronics using immiscible dynamic polymers

C. B. Cooper*; S. E. Root*; L. Michalek; S. Wu; J.-C. Lai; M. Khatib; R. Zhao; J. Qin; Z. Bao†

Science, 2023

34. Effect of Molecular Weight on the Morphology of a Polymer Semiconductor–Thermoplastic Elastomer Blend

Peña-Alcántara, A.; Nikzad, S.; Michalek, L.; Prine, N.; Wang, Y.; Gong, H.; Ponte, E.;Schneider, S.; Wu, Y.; Root, S. E.; He, M.;Tok, J B.-H.,Gu, X. & Bao, Z.†

Advanced Electronic Materials,2023

33. A substrate-less nanomesh receptor with meta-learning for rapid hand task recognition

 

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.

Nature Electronics, 2023

2022

32. Charge Transport Measured Using the EGaIn Junction Through Self-Assembled Monolayers Immersed in Organic Solvents

Li, Y.*; Root, S. E.*; Belding, L.; Park, J.; Yoon, H. J.; Huang, C.; Baghbanzadeh, M.; Whitesides, G. M.,

Journal of Physical Chemistry B, 2022

31. Generating Oscillatory Behavior by Applying a Magnetic Field during Electrocatalytic Oxidation of  Glycerol

Gao, R.; Kodaimati, M. O.; Handy, K.; Root, S. E.; Whitesides, G. M.

Journal of Physical Chemistry C, 2022

30. Programmable Soft Valves for Digital and Analog Control

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.

Proceedings of the National Academy of Sciences, 2022

29. Tube-Balloon Logic for the Exploration of Fluidic Control Elements

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.

IEEE Robotics & Automation Letters,  2022

28. An Expanding Foam-Fabric Orthopedic Cast

Root, S. E.*; Sanchez, V.;* Tracz, J. A.*; Preston, D. J.; Zvi, Y. S.; Wang, K.; Homer-Vanniasinkam, S.; Whitesides, G. M.; 

Advanced Materials Technologies, 2022

27. Controlled Hysteresis of Conductance in Molecular Tunneling Junctions

Park, J.; Kodaimati, M. S.; Belding, L.; Root, S. E.; Schatz, G. C.; Whitesides, G. M.; 

ACS Nano, 2022

26. Magnetic Fields Enhance Mass Transport During Electrocatalytic Reduction of CO2

Kodaimati, M. S.*; Gao, R.*; Root, S. E.; Whitesides, G. M.

Chem Catalysis, 2022, 2, 1-19. 

2021

25. Storing and Reading Information in Mixtures of Fluorescent Molecules

Nagarkar, A.; Root, S. E.; Fink, M. J.; Ten, A. S.; Cafferty, B. J.; Richardson, D. S.; Mrksich, M.; Whitesides, G. M. 

ACS Central Science, 7, 10, 1728–1735

24. Bio-Inspired Design of Soft Mechanisms Using a Toroidal Hydrostat

Root, S. E.; Preston, D. J.; Feifke, G. O.; Wallace, H.; Alcoran, R. M.; Nemitz, M. P.; Tracz, J. A.; Whitesides, G. M.

Cell Reports Physical Science, 2, 100572, 1-12

23. Estimating the Density of Thin Polymeric Films Using Magnetic Levitation

Root, S. E.*; Gao, R.*; Abrahamsson, C. K.; Kodaimati, M. S.; Ge, S.; Whitesides, G. M.

ACS Nano, 15, 10, 15676–15686

22. Characterizing Chelation at Surfaces by Charge Tunneling

Li, Y.*; Root, S.  E.*; Belding, L.; Park, J.; Rawson, J.; Yoon, H.J.; Baghbanzadeh, M.; Rothemund, P. Cafferty, B. J.; Whitesides, G. M.

Journal of the American Chemical Society, 2021, 143, 15, 5967–5977

21. Conformation, and Charge Tunneling Through Molecules in SAMs

Belding, L.*; Root, S. E.*; Li, Y.; Park, J.; Baghbanzadeh, M.; Rojas, E.; Pieters, P.; Whitesides, G. M.

Journal of the American Chemical Society, 2021, 143, 9, 3481-3493

 

20. Rectification in Molecular Tunneling Junctions Based on Alkanethiolates with Bipyridine–Metal Complexes

Park, J.; Belding, L.; Li, Y.; Mousavi, M. P. S.; Root, S. E.; Yoon, H. J.; Whitesides, G. M.

Journal of the American Chemical Society, 2021, 143, 4, 2156-2163 

2020

19. Electropneumotactile Stimulation: Multimodal Haptic Actuators Enabled by a Stretchable Conductive Polymer on Inflatable Pockets

Carpenter, C. W.; Malinao, M. G.; Rafeedi, T. A.; Rodriquez, D.; Tan, S. T. M.;  Root, N. B.; Skelil, K; Ramírez, J.; Polat, B.; Root, S. E.; Ramachandran, V. S.; Lipomi, D. J.

Advanced Materials Technologies, 5, 6, 1901119

2019

18. Interfacial Drawing: Roll-to-Roll Coating of Semiconducting Polymer and Barrier Films onto Plastic Foils and Textiles

Runser, R.*; Root, S. E.*; Ober, D. E.; Choudhary, K.; Chen, A. X.; Dhong,  C.; Urbina, A. D.; Lipomi, D. J.

Chemistry of Materials, 2019, 31, 9078-9086

17. Mechanical Properties of Semiconducting Polymers 

Alkhadra, M. A.; Kleinschmidt, A. T.; Root, S. E.; Rodriquez, D.; Printz, A. D.; Savagatrup, S.; Lipomi, D. J.

Conjugated Polymers: Properties, Processing, and Applications 2019 CRC Press  

2018

16. Measurement of Cohesion and Adhesion of Semiconducting Polymers by Scratch Testing: Effect of Side-Chain Length and Degree of Polymerization

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.

Macroletters, 2018, 7, 1003-1009 

15. Stretchable and Degradable Semiconducting Block Copolymers

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.

 Macromolecules, 2018, 51, 5944-5949 

14. Effects of Flexibility and  Branching of Side Chains on the Mechanical Properties of Low-Bandgap Copolymers

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.  

Polymer Chemistry, 2018, 9, 4354-5363

13. Ionotactile Stimulation: Ionic Gels for Haptic Human-Machine Interfaces

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.

ACS Omega, 2018, 3, 662-666

2017

12. Quantifying the Fracture Behavior of Brittle and Ductile Thin Films of Semiconducting Polymers

Alkhadra, M. A.*; Root, S. E.*; Hilby, K. M.; Rodriquez, D.; Sugiyama, F.; Lipomi, D. J.

Chemistry of Materials 2017, 29, 10139–10149. ( Best Paper Award)

11. Metallic Nanoislands on Graphene: A Metamaterial for Chemical, Mechanical, Optical, and Biological Applications.

Marin, B. C.; Ramirez, J.; Root, S. E., Aklile, E.; Lipomi, D. J.  

Nanoscale Horizons 2017, 2, 311-318

10. The Language of Glove: Wireless gesture decoder with low-power and stretchable hybrid electronics

O’Connor, T. F.; Fach, M. E.; Miller, R.; Root, S. E.; Mercier, P. P.; Lipomi, D. J.  

PloS one 2017, 12, 1-11

9. Mechanical Properties of Organic Semiconductors for Stretchable, Highly Flexible, and Mechanically Robust Electronics.

Root, S. E.; Savagatrup, S.; Printz, A. D.; Rodriquez, D.; Lipomi, D. J.

Chemical Reviews, 2017

 

8. Measuring the Glass Transition Temperature of Conjugated Polymer Films with Ultraviolet-Visible Spectroscopy.

Root, S. E.*; Alkhadra, M. A.*; Rodriquez, D.; Printz, A. D.; Lipomi, D. J.

Chemistry of Materials, 2017

 

7. Modelling the Morphology and Mechanical Behaviour of Low-Bandgap Conjugated Polymers and Bulk Heterojunction Films.

Root, S. E.; Jackson, N. E.; Savagatrup, S.; Arya, G.; Lipomi, D. J.  

Energy & Environmental Science 2017, 10, 558-569

  

6. Graphene-Metal Composites with Near-Zero Temperature Coefficient of Resistance

Marin, B. C.; Root, S. E.; Urbina, A. D.; Alklile, E.; Miller, R.; Zaretski, A. V.; Lipomi, D. J. ACS Omega 2017, 2, 626-630.

 

5. Poly (3-hexylthiophene) (P3HT): Fruit Fly or Outlier in Organic Solar Cell Research?

Kleinschmidt, A. T.; Root, S. E.; Lipomi, D. J.  

Journal of Materials Chemistry A 2017

 

4. Comparison of Methods for Determining the Mechanical Properties of Semiconducting Polymer Films for Stretchable Electronics.

Rodriquez, D.; Kim, J.H.; Root, S. E.; Fei, Z.; Boufflet, P.; Heeney, M.; Kim, T. S.; Lipomi, D. J.  

Applied Materials & Interfaces 2017, 9, 8855-8862.

2016

3. Predicting the Mechanical Properties of Organic Semiconductors Using Coarse-Grained Molecular Dynamics Simulations.

Root, S. E.; Savagatrup, S.; Pais, C. J.; Arya, G.; Lipomi, D. J.  

Macromolecules 2016, 49, 2886-2894

2. Metallic Nanoislands on Graphene as Highly Sensitive Transducers of Mechanical, Biological, and Optical Signals.

Zaretski, A. V.; Root, S. E.; Savchenko, A.; Molokanova, E.; Printz, A. D.; Jibril, L.; Arya, G.; Mercola, M.; Lipomi, D. J.  

Nano Letters 2016,16, 1375-1380

2015

1. Mechanical Degradation and Stability of Organic Solar Cells: Molecular and Microstructural Determinants.

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.  

Energy & Environmental Science 2015, 8, 55–80.