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Article

4 Citations

4,935 Views

17 Pages

Acetic Acid and Ammonium Persulfate Pre-Treated Copper Foil for the Improvement of Graphene Quality, Sensitivity and Specificity of Hall Effect Label-Free DNA Hybridization Detection

Naiyuan Cui,
Fei Wang and
Hanyuan Ding

Materials2020, 13(7), 1784;https://doi.org/10.3390/ma13071784

10 April 2020

The capability of graphene-based biosensors used to detect biomolecules, such as DNA and cancer marker, is enormously affected by the quality of graphene. In this work, high quality and cleanness graphene were obtained by CVD based on acetic acid (AA...

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Communication

21 Citations

6,526 Views

9 Pages

Highly Sensitive and Selective Potassium Ion Detection Based on Graphene Hall Effect Biosensors

Xiangqi Liu,
Chen Ye,
Xiaoqing Li,
Naiyuan Cui,
Tianzhun Wu,
Shiyu Du,
Qiuping Wei,
Li Fu,
Jiancheng Yin and
Cheng-Te Lin

Materials2018, 11(3), 399;https://doi.org/10.3390/ma11030399

7 March 2018

Potassium (K⁺) ion is an important biological substance in the human body and plays a critical role in the maintenance of transmembrane potential and hormone secretion. Several detection techniques, including fluorescent, electrochemical, and electri...

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Article

8 Citations

4,881 Views

16 Pages

Design and Optimisation of Elliptical-Shaped Planar Hall Sensor for Biomedical Applications

Shah Mukim Uddin,
Abkar Sayad,
Jianxiong Chan,
Efstratios Skafidas and
Patrick Kwan

Biosensors2022, 12(2), 108;https://doi.org/10.3390/bios12020108

10 February 2022

The magnetic beads detection-based immunoassay, also called magneto-immunoassay, has potential applications in point-of-care testing (POCT) due to its unique advantage of minimal background interference from the biological sample and associated reage...

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Article

13 Citations

4,544 Views

10 Pages

Performance Validation of a Planar Hall Resistance Biosensor through Beta-Amyloid Biomarker

SungJoon Kim,
Sri Ramulu Torati,
Artem Talantsev,
ChangYeop Jeon,
SungBae Lee and
CheolGi Kim

Sensors2020, 20(2), 434;https://doi.org/10.3390/s20020434

13 January 2020

Magnetic sensors have great potential for biomedical applications, particularly, detection of magnetically-labeled biomolecules and cells. On the basis of the advantage of the planar Hall effect sensor, which consists of improved thermal stability as...

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Review

193 Citations

12,935 Views

22 Pages

Estimation of Number of Graphene Layers Using Different Methods: A Focused Review

Vineet Kumar,
Anuj Kumar,
Dong-Joo Lee and
Sang-Shin Park

Materials2021, 14(16), 4590;https://doi.org/10.3390/ma14164590

16 August 2021

Graphene, a two-dimensional nanosheet, is composed of carbon species (sp² hybridized carbon atoms) and is the center of attention for researchers due to its extraordinary physicochemical (e.g., optical transparency, electrical, thermal conductivity,...

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