Ömer Gökalp Akcan

• Master of Science
• PhD Student at Istanbul Technical University

This work presents the design, implementation, and characterization of a piezoresistive force sensor integrated into a flexible printed circuit board (FlexPCB). We propose a flexPCB-based MEMS sensing system with graphite as the sensing element and polyimide as the principal substrate material, intended for disposable and low-cost applications. The...

This paper details the design, fabrication, and characterization of a novel disposable MEMS airflow sensor, employing Bare Conductive electric paint deposited on Whatman 3MM chromatography paper through silk screen printing. The sensor achieves rapid fabrication within 30 minutes. It demonstrates a sensitivity of 1.8 kPa $^{-1}$, a resolution of 27...

This work demonstrates the design, implementation, and experimental results of a low-cost disposable flexible sensor system capable of both impact localization and measurement. The proposed flexible sensor structure utilizes a special series of Bristol paper as the main fabrication material, which is coated with electric paint graphite paste and si...

In this work, a paper-based perforated disposable biosensing device is proposed as an alternative method for aflatoxin M1 molecule detection. The demonstrated system is designed to achieve a quick and novel biosensing operation with low-cost materials using competitive assay method. For that purpose, the main fabrication material has opted as a 190...

This thesis demonstrates design, implementation, and experimental results of a low-cost disposable flexible sensor system capable of both impact localization and measurement. Proposed flexible sensor structure utilizes a special series of Bristol paper as the main fabrication material, which is coated with electric paint graphite paste and silver p...

This paper proposes a novel disposable linear absolute encoder system and its peripheral electronic readout circuitry to be used for the localization of force in a continuum media such as a flexible robotic arm. The proposed structure relies on the design of graphite layers on a flexible surface that shows varying resistance based on the applied st...

This paper presents the design, fabrication, experimental results and related discussion of a portable bending enhancing silicone mold structure for biomedical applications in which a high-sensitive but low-cost force measurement structure with a large-dynamic range is required. Proposed system is composed of a replaceable parts like graphite coate...

This study presents the design, simulation, implementation, and experimental characterization of a paper-based perforated disposable weight sensor system with a double piezoresistive layer. The demonstrated system is designed to achieve highly sensitive weight sensing operations with low-cost materials. For that purpose, the main fabrication materi...