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MP-SPR keyword: biosensor development

Peer-reviewed publications

Biofunctionalization of Graphene-Based FET Sensors through Heterobifunctional Nanoscaffolds: Technology Validation toward Rapid COVID-19 Diagnostics and Monitoring

Publication year: 2022
Authors: Piccinini E. *, Fenoy G.E. , Cantillo A.L. , Allegretto J.A. , Scotto J. , Piccinini J.M. , Marmisollé W.A. , Azzaroni O. *
Published in: Advanced Materials Interfaces, 2102526

The biofunctionalization of graphene field-effect transistors (GFETs) through vinylsulfonated-polyethyleneimine nanoscaffold is presented for enhanced biosensing of severe acute respiratory-related coronavirus 2 (SARS-CoV-2) spike protein and human ferritin, two targets of great importance for the rapid diagnostic and monitoring of individuals with COVID-19. The heterobifunctional nanoscaffold enables covalent immobilization of binding proteins and antifouling polymers while…

Peer-reviewed publications

Label-Enhanced Surface Plasmon Resonance: A New Concept for Improved Performance in Optical Biosensor Analysis

Publication year: 2013
Authors: Niko Granqvist 1,2, Anders Hanning 3, Lars Eng 3, Jussi Tuppurainen 2, Tapani Viitala 1
Published in: Sensors, 2013, Vol. 13(11), p. 15348-15363

Surface plasmon resonance (SPR) is a well-established optical biosensor technology with many proven applications in the study of molecular interactions as well as in surface and material science. SPR is usually applied in the label-free mode which may be advantageous in cases where the presence of a label may potentially interfere with the studied interactions…

Peer-reviewed publications

A simple and direct SPR platform combining three-in-one multifunctional peptides for ultra-sensitive detection of PD-L1 exosomes

Publication year: 2021
Authors: Mao Z.a,b, Zhao J.c, Chen J.b,d, Hu X.b, Koh K.e, Chen H.b
Published in: Sensors and Actuators B: Chemical, 2021, Vol.346, p. 130496

Exosomes are lipid-bilayer-enclosed extracellular vehicles (EVs) derived from all cells and circulating in the blood. Identification of cancer specific exosomes in body fluids has shown great potential for cancer diagnostics. The low concentration in blood and likely to deplete their native character on the solid surface makes it difficult to measure it in real time…

Peer-reviewed publications

Surface Plasmon Resonance Assay for Label-Free and Selective Detection of Xylella Fastidiosa

Publication year: 2021
Authors: Sarcina L. 1, Macchia E. 2, Loconsole G. 3, D'Attoma G. 3, Saldarelli P. 3, Elicio V. 4, Palazzo G. 1, Torsi L. 1,2
Published in: Advanced NanoBiomed Research, 2021, p. 2100043

Xylella fastidiosa is among the most dangerous plant bacteria worldwide causing a variety of diseases, with huge economic impact on agriculture and environment. A surveillance tool, ensuring the highest possible sensitivity enabling the early detection of X. fastidiosa outbreaks, would be of paramount importance. So far, a variety of plant pathogen biomarkers are studied by means of surface…

Peer-reviewed publications

Development of a novel biosensor for Creatine Kinase (CK-MB) using Surface Plasmon Resonance (SPR)

Publication year: 2021
Authors: André L.Ferreira a,1, Lucas Lima b,1, Ariana S.Moraes a,1, Rafael J.G.Rubira c,1, Carlos J.L.Constantino c, Fabio L.Leite a, Adriana O.Delgado-Silva a, Marystela Ferreira a
Published in: Applied Surface Science, Vol. 554 (2021), 149565

In this paper, we report a new biosensor for detection of the cardiac biomarker Creatine Kinase (CK-MB) using Surface Plasmon Surface (SPR) technique, with the purpose of the diagnosis of Acute Myocardial Infarction (AMI). For this, we employed gold nanoparticles (AuNP) stabilized with Cysteamine (Cys), and functionalized with Creatine Phosphate (Pcrea), which promote an increase…

Peer-reviewed publications

AuNPs network structures as a plasmonic matrix for ultrasensitive immunoassay based on surface plasmon resonance spectroscopy

Publication year: 2021
Authors: Junjie Hu a, Jialin Zhao a,b, Han Zhu a, Qiang Chen c, Xiaojun Hu a, Kwangnak Koh d, Hongxia Chen a
Published in: Sensors and Actuators B: Chemical, 2021, Vol. 340, p. 129948

Nanoparticle gap, degree of order, and the structure of the nanocomposite functionalized interface have a significant impact on sensing properties. Orderly arranged gold nanoparticles enhance the local surface plasmon resonance and the surface plasmon wave coupling on the surface of the gold film, thereby effectively improving the SPR sensitivity. The orderly adjustment of AuNPs spacing…

Peer-reviewed publications

Specific intracellular binding peptide as sPD-L1 antibody mimic: Robust binding capacity and intracellular region specific modulation upon applied to sensing research

Publication year: 2021
Authors: Junjie Hu a, Zhao-huan Zhang b, Zhongzheng Zhu c, Jie Chen a,d, Xiaojun Hu a, Hongxia Chen a
Published in: Biosensors and Bioelectronics, 2021, Vol. 185, p. 113269

Programmed death ligand 1 (PD-L1) immune checkpoint has been regarded as a new target for predicting cancer immunotherapy. As a transmembrane protein, PD-L1 has very low blood concentration and is likely to deplete their native activity when separated from the membrane environment due to significant hydrophobic domains, which make it difficult to measure sensitively. The…

Peer-reviewed publications

Surface Plasmon Resonance Assay for Label-Free and Selective Detection of HIV-1 p24 Protein

Publication year: 2021
Authors: Sarcina L. 1, Mangiatordi G.F. 2, Torricelli F. 3, Bollella P. 1, Gounani Z. 4, Österbacka R. 4, Macchia E. 4, Torsi L. 1,4,5
Published in: Biosensors, 2021, Vol. 11(6), p. 180

The early detection of the human immunodeficiency virus (HIV) is of paramount importance to achieve efficient therapeutic treatment and limit the disease spreading. In this perspective, the assessment of biosensing assay for the HIV-1 p24 capsid protein plays a pivotal role in the timely and selective detection of HIV infections. In this study, multi-parameter-SPR has…

Peer-reviewed publications

An investigation of the synergistic effect between magnetite nanoparticles and polypyrrole in nanostructured layer‐by‐layer films

Publication year: 2020
Authors: de Lima L. 1,2, Maciel C. 3, Ferreira A. 1, Rubira R. 4, Constantino C. 4, Ferreira M. *1 1M.
Published in: Journal of Applied Polymer Science, 2020

In this paper, we report the controlled fabrication of layer‐by‐layer (LbL) films deposited on gold substrates with three different supramolecular architectures using polypyrrole (Ppy) and magnetite nanoparticles (Fe3O4‐np), besides conventional poly(allylamine hydrochloride) (PAH) e poly(vinyl sulfonic acid) (PVS) polyelectrolytes, demonstrating the synergistic effect between Ppy and Fe3O4‐np such as a result of their interaction. Modified…

Peer-reviewed publications

Assessment of Gold Bio-Functionalization for Wide-Interface Biosensing Platforms

Publication year: 2020
Authors: Sarcina L. 1,Torsi L. 123, Picca R.A. 12, Manoli K. 12*, Macchia E. 3
Published in: Sensors, 2020, Vol. 20, p. 3678

The continuous improvement of the technical potential of bioelectronic devices for biosensing applications will provide clinicians with a reliable tool for biomarker quantification down to the single molecule. Eventually, physicians will be able to identify the very moment at which the illness state begins, with a terrific impact on the quality of life along with…