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 polysaccharide bioprotonic field-effect transistor.

You may hide this message. Devices were mounted on a chip, and wire bonded.

The intra- and inter-molecular hydrogen bonds as well as the hydrogen bonds between the water of hydration and the polar parts of the molecule form a continuous network comprised by hydrogen-bond chains. Chance and design – proton transfer in water, channels and bioenergetic proteins.

When a bias is applied between the contacts, the current increases with relative humidity and polysaccharide hydration level Fig. From these plots, it is also clear that in significantly thinner devices the expected charge modulation will be higher. Home Citegeist Everyone’s Library. This procedure eliminates any salt and thus potential salt effects on the conductivity. By clicking accept or continuing to use the site, you agree to the terms outlined in our Privacy PolicyTerms of Serviceand Dataset License.

Proton conductivity and thermodynamic features in the hydrogen-bonded molecular systems. An analogous Vgs effect on the charge density and current density distribution has been observed in thin-film organic transistors Ion bipolar junction transistors.

A proton-injecting technique for the measurement of hydration-dependent protonic conductivity. Photolithography and lift-off was used to define the contacts.


Nanomaterials for neural interfaces. All the authors revised the manuscript.

A polysaccharide bioprotonic field-effect transistor

The protonic conductivity in chitin Supplementary Fig. Reprints and permission information is available online at http: Palladium is chosen as the contact material for its ability to form proton-conducting PdHx on exposure to hydrogen The maleic—chitosan hydration level was determined with a thermogravimetric analyser TA Instruments, model PdHx contacts allow for indiscriminate measurement of the protonic current.

There are no fie,d-effect of this article. Bioprotohic resonance in a single-walled carbon nanotube ion channel. Mobility was varied to fit the data.

Device physics of solution-processed organic field-effect transistors. Such devices may be fabricated with individual biporotonic nanofibres and should offer a greatly improved on-off ratio. Ph regulation and beyond: Measurements were performed with a semiconductor parameter analyser Agilent C. CiteULike is a free online bibliography manager. Bionanoelectronic devices23 that can control the current of ions and protons—a more appropriate language than electrons in nature24—are uniquely positioned.

In maleic-chitosan nanofibres, the flow of protonic current is turned on or off by an electrostatic potential applied to a gate electrode. The authors would like to thank Michael Brasino for graphic consulting.

A polysaccharide bioprotonic field-effect transistor. – Semantic Scholar

The demonstrated ability to control protonic currents in nanostructured biocompatible solid-state devices bionanoprotonics may open exciting opportunities for interfacing with living systems.

For device with PdHx contacts shown in Figure 1. Transistors Polysaccharides Silicic Acid. PdHx affords proton exchange between the contacts and the maleic—chitosan channel without electrolysis. Register and you can start organising your references online. Chuanhua DuanArun Majumdar Nature nanotechnology Acta Biomaterialia 6, — Paris 48, — Nature80—83 booprotonic However, these require microscopic liquid reservoirs, and current control at physiological concentration is limited to difficult-to-fabricate nanometer channels The service is similar polysaccharive scope to EndNote or RefWorks or any other reference manager like BibTeX, but it is a social field-efffect service for scientists and humanities researchers.


Citations Publications citing this paper.

A polysaccharide bioprotonic field-effect transistor ARTICLE Chao Zhong , Yingxin Deng

S1which has no maleic groups, is significantly lower than in transjstor maleic—chitosan derivative. Anomalous ion transport in 2-nm hydrophilic nanochannels. A facile bottom-up route to self-assembled biogenic chitin nanofibers. To insert individual citation into a bibliography in a word-processor, select your preferred citation style below and drag-and-drop it into the document.

It is important to note that both Au and Pd are significantly better electronic conductors than PdHx.

Ionic-conduction in keratin wool. Artificial devices that can control and monitor ionic and protonic currents are thus an ideal means for interfacing with biological systems. Delivery of Cargo with a Bioelectronic Trigger.

However, in highly conducting proton wires, such as in gramicidin, the activation energy associated with transport is very small5. Given that this model involves several assumptions and approximate estimates of the maleic—chitosan channel volume, this data is in good, even fortuitous, agreement.

Synthesis, characterization and cytotoxicity of photocrosslinked maleic chitosan-polyethylene glycol diacrylate hybrid hydrogels. Nanoionics-based resistive switching memories. Showing of 38 references.