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Your search keyword '"Rolandi, Marco"' showing total 9 results
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9 results on '"Rolandi, Marco"'

2. A system for bioelectronic delivery of treatment directed toward wound healing

Author

Baniya, Prabhat, Tebyani, Maryam, Asefifeyzabadi, Narges, Nguyen, Tiffany, Hernandez, Cristian, Zhu, Kan, Li, Houpu, Selberg, John, Hsieh, Hao-Chieh, Pansodtee, Pattawong, Yang, Hsin-ya, Recendez, Cynthia, Keller, Gordon, Hee, Wan Shen, Aslankoohi, Elham, Isseroff, Roslyn Rivkah, Zhao, Min, Gomez, Marcella, Rolandi, Marco, and Teodorescu, Mircea

Published
2023
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5. H+-type and OH--type biological protonic semiconductors and complementary devices.

Author

Yingxin Deng, Josberger, Erik, Jungho Jin, Rousdari, Anita Fadavi, Helms, Brett A., Chao Zhong, Anantram, M. P., and Rolandi, Marco

Subjects
PROTON conductivity, PROTONS, SEMICONDUCTORS, PHOSPHORYLATION, BACTERIORHODOPSIN, GRAMICIDINS
Abstract

Proton conduction is essential in biological systems. Oxidative phosphorylation in mitochondria, proton pumping in bacteriorhodopsin, and uncoupling membrane potentials by the antibiotic Gramicidin are examples. In these systems, H+ hop along chains of hydrogen bonds between water molecules and hydrophilic residues - proton wires. These wires also support the transport of OH- as proton holes. Discriminating between H+ and OH- transport has been elusive. Here, H+ and OH- transport is achieved in polysaccharide- based proton wires and devices. A H+-OH- junction with rectifying behaviour and H+-type and OH--type complementary field effect transistors are demonstrated. We describe these devices with a model that relates H+ and OH- to electron and hole transport in semiconductors. In turn, the model developed for these devices may provide additional insights into proton conduction in biological systems [ABSTRACT FROM AUTHOR]

Published
2013
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9. H+-type and OH- -type biological protonic semiconductors and complementary devices.

Author

Deng Y, Josberger E, Jin J, Roudsari AF, Rousdari AF, Helms BA, Zhong C, Anantram MP, and Rolandi M

Subjects
Biological Transport, Chitosan chemistry, Computer Simulation, Hydrogen Bonding, Hydrolysis, Maleates chemistry, Membrane Potentials, Models, Molecular, Proline chemistry, Water chemistry, Hydroxides, Protons, Semiconductors
Abstract

Proton conduction is essential in biological systems. Oxidative phosphorylation in mitochondria, proton pumping in bacteriorhodopsin, and uncoupling membrane potentials by the antibiotic Gramicidin are examples. In these systems, H(+) hop along chains of hydrogen bonds between water molecules and hydrophilic residues - proton wires. These wires also support the transport of OH(-) as proton holes. Discriminating between H(+) and OH(-) transport has been elusive. Here, H(+) and OH(-) transport is achieved in polysaccharide- based proton wires and devices. A H(+)- OH(-) junction with rectifying behaviour and H(+)-type and OH(-)-type complementary field effect transistors are demonstrated. We describe these devices with a model that relates H(+) and OH(-) to electron and hole transport in semiconductors. In turn, the model developed for these devices may provide additional insights into proton conduction in biological systems.

Published
2013
Full Text
View/download PDF

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