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11 Results Found

  • Article
  • Open Access
52 Citations
11,846 Views
12 Pages

Electronic Biosensing with Functionalized rGO FETs

  • Ciril Reiner-Rozman,
  • Caroline Kotlowski and
  • Wolfgang Knoll

22 April 2016

In the following we give a short summary of examples for biosensor concepts in areas in which reduced graphene oxide-based electronic devices can be developed into new classes of biosensors, which are highly sensitive, label-free, disposable and chea...

  • Review
  • Open Access
46 Citations
7,509 Views
34 Pages

5 July 2019

Graphene and its chemically exfoliated derivatives—GO and rGO—are the key members of graphene family materials (GFM). The atomically thick crystal structure and the large continuous π conjugate of graphene imparts it with unique electrical, mechanica...

  • Article
  • Open Access
2 Citations
1,709 Views
13 Pages

5 February 2025

The performance development of rGO-FET biosensors by analyzing the influence of GO flake size on biosensing efficacy. GO flakes of varying sizes, from 1 µm to 20 µm, were prepared under controlled conditions, followed by characterization...

  • Article
  • Open Access
1,260 Views
16 Pages

Creatinine Sensing with Reduced Graphene Oxide-Based Field Effect Transistors

  • Melody L. Candia,
  • Esteban Piccinini,
  • Omar Azzaroni and
  • Waldemar A. Marmisollé

Creatinine (Crn) is a clinically relevant biomarker commonly used for the diagnosis and monitoring of kidney disease. In this work, we report the fabrication of reduced-graphene-oxide-based field-effect transistors (rGO FETs) for Crn detection. These...

  • Communication
  • Open Access
1 Citations
1,582 Views
20 Pages

An Aptamer-Based gFET-Sensor for Specific Quantification of Gene Therapeutic Human Adenovirus Type 5

  • Runliu Li,
  • Ann-Kathrin Kissmann,
  • Hu Xing,
  • Roger Hasler,
  • Christoph Kleber,
  • Wolfgang Knoll,
  • Hannes Schmietendorf,
  • Tatjana Engler,
  • Lea Krutzke and
  • Frank Rosenau
  • + 1 author

14 September 2025

The combination of rGO-FETs (reduced Graphene Oxide Field-Effect Transistors) and DNA-oligonucleotide aptamers to sense analytes has been shown to be a promising technological approach, achieving high sensitivity and selectivity. With human adenoviru...

  • Article
  • Open Access
5 Citations
4,202 Views
13 Pages

31 October 2019

Porphyrin functionalized reduced graphene oxide (rGO) is attractive for multi-disciplinary research studies, and its improvements for an rGO-based field effect transistor (rGO-FET) were exploited to realize ultrasensitive biochemical and clinical ass...

  • Article
  • Open Access
8 Citations
4,001 Views
12 Pages

Comparative Study of Field-Effect Transistors Based on Graphene Oxide and CVD Graphene in Highly Sensitive NT-proBNP Aptasensors

  • Anastasiia Kudriavtseva,
  • Stefan Jarić,
  • Nikita Nekrasov,
  • Alexey V. Orlov,
  • Ivana Gadjanski,
  • Ivan Bobrinetskiy,
  • Petr I. Nikitin and
  • Nikola Knežević

26 April 2024

Graphene-based materials are actively being investigated as sensing elements for the detection of different analytes. Both graphene grown by chemical vapor deposition (CVD) and graphene oxide (GO) produced by the modified Hummers’ method are ac...

  • Article
  • Open Access
6 Citations
4,385 Views
13 Pages

Rapid, Selective, and Ultra-Sensitive Field Effect Transistor-Based Detection of Escherichia coli

  • Liena Zaidan,
  • Inna Novodchuk,
  • Alexander H.Xu,
  • Alexandru Nica,
  • Saeed Takaloo,
  • Christopher Lloyd,
  • Reza Karimi,
  • Joe Sanderson,
  • Michal Bajcsy and
  • Mustafa Yavuz

24 July 2024

Escherichia coli (E. coli) was among the first organisms to have its complete genome published (Genome Sequence of E. coli 1997 Science). It is used as a model system in microbiology research. E. coli can cause life-threatening illnesses, particularl...

  • Article
  • Open Access
6 Citations
2,375 Views
18 Pages

Geometrical Characterisation of TiO2-rGO Field-Effect Transistor as a Platform for Biosensing Applications

  • Anis Amirah Alim,
  • Roharsyafinaz Roslan,
  • Sh. Nadzirah,
  • Lina Khalida Saidi,
  • P. Susthitha Menon,
  • Ismail Aziah,
  • Dee Chang Fu,
  • Siti Aishah Sulaiman,
  • Nor Azian Abdul Murad and
  • Azrul Azlan Hamzah

25 August 2023

The performance of the graphene-based field-effect transistor (FET) as a biosensor is based on the output drain current (Id). In this work, the signal-to-noise ratio (SNR) was investigated to obtain a high-performance device that produces a higher Id...

  • Article
  • Open Access
14 Citations
4,473 Views
16 Pages

11 June 2019

Aptamer functionalized graphene field effect transistor (apta-GFET) is a versatile bio-sensing platform. However, the chemical inertness of graphene is still an obstacle for its large-scale applications and commercialization. In this work, reduced ca...

  • Review
  • Open Access
88 Citations
10,995 Views
36 Pages

Properties and Applications of Graphene and Its Derivatives in Biosensors for Cancer Detection: A Comprehensive Review

  • Mehrab Pourmadadi,
  • Homayoon Soleimani Dinani,
  • Fatemeh Saeidi Tabar,
  • Kajal Khassi,
  • Sajjad Janfaza,
  • Nishat Tasnim and
  • Mina Hoorfar

24 April 2022

Cancer is one of the deadliest diseases worldwide, and there is a critical need for diagnostic platforms for applications in early cancer detection. The diagnosis of cancer can be made by identifying abnormal cell characteristics such as functional c...