Intermolecular And Surface Forces

A method of making a structure having a patterned a base layer and useful in the fabrication of optical and electronic devices including bioelectronic devices includes, in one embodiment, the steps of: a) providing a layer of a radiation-sensitive resin; b) exposing the layer of radiation-sensitive resin to patterned radiation to form a base layer precursor having a first pattern of exposed radiation-sensitive resin and a second pattern of unexposed radiation-sensitive resin; c) providing a layer of fluoropolymer in a third pattern over the base layer precursor to form a first intermediate structure; d) treating the first intermediate structure to form a second intermediate structure; and e) selectively removing either the first or second pattern of resin by contacting the second intermediate structure with a resin developing agent, thereby forming the patterned base layer. The method is capable of providing multilayer articles having almost any shape at high resolution without the need for expensive or damaging mechanical or laser cutting.

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Organic electrochemical transistor

Algorithms and applications

Constrained Model Predictive Control

This paper presents an enhanced time-delay controller (TDC) for the position control of an autonomous underwater vehicle (AUV) under disturbances. A conventional TDC performs well when the involved data acquisition rate is fast. However, in AUV control applications that use a Doppler velocity log (DVL) navigation system, we cannot keep the data acquisition rate sufficiently fast because a DVL sensor generally supplies data at a slow acquisition rate, which degrades the performance of the TDC. To overcome this problem, we propose an integral sliding-mode controller to be supplemented to the conventional TDC to improve the control precision even if the DVL navigation system is in operation. The proposed controller is computationally simple and robust to unmodeled dynamics and disturbances. We performed computer simulations and experiments with the Cyclops AUV to demonstrate the validity of the proposed controller.

Time-Delay Controller Design for Position Control of Autonomous Underwater Vehicle Under Disturbances

Organic electronic transistors are rapidly emerging as ultrahigh sensitive label-free biosensors suited for point-of-care or in-field deployed applications. Most organic biosensors reported to date ...

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EGOFET Peptide Aptasensor for Label‐Free Detection of Inflammatory Cytokines in Complex Fluids

Model predictive control (MPC) is one of the most popular advanced control techniques and is used widely in industry The main drawback with MPC is that it is fairly computationally expensive and this has so far limited its practical use for nonlinear systems To reduce the computational burden of nonlinear MPC, Feedback Linearization together with linear MPC has been used successfully to control nonlinear systems The main drawback is that this results in an optimization problem with nonlinear constraints on the control signal In this paper we propose a method to handle the nonlinear constraints that arises using a set of dynamically generated local inner polytopic approximations The main benefits of the proposed method is guaranteed recursive feasibility and convergence

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Nonlinear model predictive control using Feedback Linearization and local inner convex constraint approximations

Among the many different formulations of Model Predictive Control (MPC) with guaranteed stability, one that has attracted significant attention is the formulation with a terminal cost and terminal constraint set, the so called dual mode formulation.

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Reference Tracking MPC Using Dynamic Terminal Set Transformation

The quantification of urea is of the utmost importance not only in medical diagnosis, where it serves as a potential indicator of kidney and liver disfunction, but also in food safety and environme ...

Label free urea biosensor based on organic electrochemical transistors

A device for electrically controlled of ions, comprises a first electrolyte; a first electrode, which is arranged in direct or indirect contact with the first electrolyte, an encapsulation; and an ion conductor, which is arranged to receive and/or deliver ions from/to the first electrolyte. The encapsulation is arranged to effectively enclose the first electrolyte, and the ion conductor is arranged to transport ions from/to an outside of the encapsulation.

Daniel Simon

Papers

EGOFET Peptide Aptasensor for Label‐Free Detection of Inflammatory Cytokines in Complex Fluids

Nonlinear model predictive control using Feedback Linearization and local inner convex constraint approximations

Reference Tracking MPC Using Dynamic Terminal Set Transformation

Label free urea biosensor based on organic electrochemical transistors

Electrically controlled ion transport device