Quantitative and Selective Surface Plasmon Resonance Response Based on a Reduced Graphene Oxide-Polyamidoamine Nanocomposite for Detection of Dengue Virus E-Proteins

Dengue viral infection is one of the most common deadliest diseases and has become a recurrent issue for public health in tropical countries. Although the spectrum of clinical diagnosis and treatment have recently been established, the efficient and rapid detection of dengue virus (DENV) during vire...

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Bibliographic Details
Published in:Nanomaterials (Basel, Switzerland) Switzerland), 2020-03, Vol.10 (3), p.569
Main Authors: Omar, Nur Alia Sheh, Fen, Yap Wing, Abdullah, Jaafar, Sadrolhosseini, Amir Reza, Mustapha Kamil, Yasmin, Fauzi, Nurul 'Illya Muhamad, Hashim, Hazwani Suhaila, Mahdi, Mohd Adzir
Format: Article
Language:English
Subjects:
Accuracy
Antigens
Composite materials
Dengue fever
dengue virus
Diagnostic software
Diagnostic systems
envelope proteins
Figure of merit
Glass substrates
Graphene
graphene oxide
Immunoglobulins
Infections
Medical research
Nanocomposites
Noise sensitivity
polyamidoamine
Proteins
Public health
Resonance
Selective surfaces
Sensors
Signal to noise ratio
Surface plasmon resonance
Thin films
Vector-borne diseases
Viremia
Viruses
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Summary:Dengue viral infection is one of the most common deadliest diseases and has become a recurrent issue for public health in tropical countries. Although the spectrum of clinical diagnosis and treatment have recently been established, the efficient and rapid detection of dengue virus (DENV) during viremia and the early febrile phase is still a great challenge. In this study, a dithiobis (succinimidyl undecanoate, DSU)/amine-functionalized reduced graphene oxide--polyamidoamine dendrimer (DSU/amine-functionalized rGO-PAMAM) thin film-based surface plasmon resonance (SPR) sensor was developed for the detection of DENV 2 E-proteins. Different concentrations of DENV 2 E-proteins were successfully tested by the developed SPR sensor-based system. The performance of the developed sensor showed increased shift in the SPR angle, narrow full-width-half-maximum of the SPR curve, high detection accuracy, excellent figure of merit and signal-to-noise ratio, good sensitivity values in the range of 0.08-0.5 pM (S = 0.2576°/pM, R = 0.92), and a high equilibrium association constant (K ) of 7.6452 TM . The developed sensor also showed a sensitive and selective response towards DENV 2 E-proteins compared to DENV 1 E-proteins and ZIKV (Zika virus) E-proteins. Overall, it was concluded that the Au/DSU/amine-functionalized rGO-PAMAM thin film-based SPR sensor has potential to serve as a rapid clinical diagnostic tool for DENV infection.
ISSN:2079-4991
2079-4991
DOI:10.3390/nano10030569