Here we report the first demonstration of a biopolymer protonic field-effect transistor with proton-transparent PdH(x) contacts. In maleic-chitosan nanofibres, the. ARTICLE Received 13 Apr | Accepted 22 Aug | Published 20 Sep DOI: /ncomms A polysaccharide bioprotonic field-effect. Prof. Rolandi is presenting a talk “Complementary Polysaccharide Bioprotonic Field Effect Transistors” at the Symposium UU of Spring MRS!.

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A small contact barrier neglected in our model may cause charge accumulation or depletion at the maleic—chitosan PdHx interface. Biopolymers 12, — A polysaccharide bioprotonic bioprotonoc transistor. We replaced the properties of silicon with those of the channel material. Ph regulation and beyond: Plots of current density show that the majority of Ids flows in the same area Supplementary Fig.

Transistors Polysaccharides Silicic Acid. Artificial devices that can control and monitor ionic field-effevt protonic currents are thus an ideal means for interfacing with biological systems. Export in format suitable for direct import into delicious. Theory of foeld-effect chains in bioenergetics. The maleic—chitosan hydration level was determined with a thermogravimetric analyser TA Instruments, model Read about how we use cookies.

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From This Paper Figures, tables, and topics from this paper. S1which has no maleic groups, is significantly lower polysaccharride in the maleic—chitosan derivative.

Measurements performed on a thicker device show a significantly smaller Ids modulation from Vgs, as predicted by our description Supplementary Fig. Klas TybrandtKarin LarssonA. A facile bottom-up route to self-assembled biogenic chitin nanofibers.


In contrast, the development of computing has mainly focused on devices that control electronic currents such as vacuum tubes, solid-state fieldeffect transistors FETand nanoscale molecular structures8— Showing of 27 extracted citations.

A polysaccharide bioprotonic field-effect transistor.

Diels-Alder and Melting Point Total 10 points. The demonstrated ability to control protonic currents in nanostructured biocompatible solid-state devices bionanoprotonics may open exciting opportunities for interfacing with bioprotojic systems. Artificial devices that can control and monitor ionic and protonic currents are thus an ideal means for interfacing with biological systems. The data in Figure 3b corroborates this description.

Electric field effect in atomically thin carbon films. This paper has 42 citations. RoudsariAdnan KapetanovicM. From these plots, it is clear that, for a negative Vgs, the proton density is drastically increased at the polysaccharide—dielectric interface to form a highly conducting region. Setup a permanent sync to delicious. Search all the public and authenticated articles bioproonic CiteULike. Protons Search for additional papers on this topic. There field-efffect no reviews of this article.

Nanoionics-based resistive switching memories.

A polysaccharide bioprotonic field-effect transistor

We defined a silicon Si based metal—oxide—semiconductor transistor with the same dimensions as the experiment. Home Citegeist Everyone’s Library. Ballistic carbon transiwtor field-effect transistors.

Toward complementary ionic circuits: Nature— In hybrid bionanodevices, biological multifunctionality has been added to carbon nanotubes21 or silicon nanowires22 with transmembrane proton conductive proteins. A higher level of water absorption creates more proton-conducting hydrogen-bond chains HBC that serve as proton wires2 for Grotthus type transfer to occur Fig. The authors declare no competing financial interests.


Mobility was varied to fit the field-sffect.

This was done to ensure that the measured device current was from the maleic—chitosan channel transitor not from water condensed on the top of the SiO2. The protonic conductivity in chitin Supplementary Fig. Bionanoelectronic devices23 that can control the current of ions and protons—a more appropriate language than electrons in nature24—are uniquely positioned. To create that charge, excess protons are injected into the maleic—chitosan via the proton transparent contacts.

Bioelectronic silicon nanowire devices using functional membrane proteins. Photolithography and lift-off was used to define the contacts. Ion bipolar junction transistors. From these plots, it is also clear that in significantly thinner devices the expected charge modulation will be higher. Current modulation occurs even for devices thicker than the Debye length. Molecular mechanism of vectorial proton translocation by bacteriorhodopsin.

In the future, several nanostructured biological and organic materials can be measured in these devices. Measurements were performed with a semiconductor parameter analyser Agilent C. Gioprotonic affords proton exchange between the bjoprotonic and the maleic—chitosan channel without electrolysis. This polysaccharidf introduces a new class of biocompatible solid-state devices, which can control and monitor the flow of protonic current. CiteULike is a free online bibliography manager.