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Electrochemical label-free immunoassay of HE4 using 3D PtNi nanocubes assemblies as biosensing interfaces
Human epididymis protein 4 (HE4) is a vital biomarker for early diagnosis of epithelial ovarian cancer (EOC). Herein, a new label-free biosensor was...
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Fluorescent immunoassay for chloramphenicol based on the label-free polyadenine-mediated spherical nucleic acids triggered signal amplification
A fluorescent immunosorbent assay incorporating signal amplification away from the surface of spherical nucleic acid (SNA) was developed for the...
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Development of an optical immunoassay based on peroxidase-mimicking Prussian blue nanoparticles and a label-free electrochemical immunosensor for accurate and sensitive quantification of milk species adulteration
In contrast to reported enzyme-based immunoassays, an enzyme-free immunoassay (optical and electrochemical) is presented here for the first time that...
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Gold nanoparticle-decorated fluorine-doped tin oxide substrate for sensitive label-free OIRD microarray chips
Oblique incidence reflectance difference (OIRD) is an emerging technique enabling real-time and label-free detection of bio-affinity binding events...
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Gliadin Detection by Immunoassay
Immunoassays are very sensitive and efficient tests commonly used to identify a specific protein. Examples of applications in the food industry...
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Label-free detection of biomolecules using inductively coupled plasma mass spectrometry (ICP-MS)
Bioassays using inductively coupled plasma mass spectrometry (ICP-MS) have gained increasing attention because of the high sensitivity of ICP-MS and...
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Label-free SERS assay combined with multivariate spectral data analysis for lamotrigine quantification in human serum
Considering the need for a more time and cost-effective method for lamotrigine (LTG) detection in clinics we developed a fast and robust label-free...
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Dual signal amplification coupling with DNA-templated silver nanoclusters for sensitive and label-free detection of thrombin
Sensitive and reliable determination of thrombin is relevant in the realms of medical and biological research as it serves as an essential biomarker...
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Microfluidic chip immunoassay based on rolling circle amplification and G-quadruplex/Thioflavin T for multiplex detection of CTX I
A label-free immunoassay based on rolling circle amplification (RCA) and G-quadruplex/Thioflavin T (G4/ThT) is proposed to realize the sensitive...
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Label-Free Analysis of Exosomes with Hairpin Structure-Mediated Multiple Signal Amplification Strategy
Considering the crucial role of exosomes in various biological processes and disease diagnosis, development of label-free and sensitive exosome...
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Label-free fluorescence aptasensor for the detection of cadmium(II) ion based on the conformational switching of aptamer and thioflavine T
A simple label-free Cd 2+ fluorescent aptasensor was proposed using aptamer as a recognition element and thioflavine T (ThT) as a signal reporter. The...
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A label-free fluorescent biosensor based on specific aptamer-templated silver nanoclusters for the detection of tetracycline
Tetracycline (TET) is a broad-spectrum antibiotic commonly used in the treatment of animals. TET residues in food inevitably threaten human health....
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Flower-like WSe2 used as bio-matrix in ultrasensitive label-free electrochemical immunosensor for human immunoglobulin G determination
The abnormal concentrations of human immunoglobulin G (hIgG) refers to many kinds of diseases. Analytical methods with the characteristics of rapid...
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An Electrochemical Immunoassay for Lactobacillus rhamnosus GG Using Cu@Cu2O Nanoparticle-Embedded B, N, Co-doped Porous Carbon
In this paper, we have developed a fast and low-cost label-free electrochemical immunosensor for detection of Lactobacillus rhamnosus GG (LGG). The...
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Detection of colistin (Polymyxin B) a restricted drug in chicken eggs using a label-free immunosensor based on Au screen-printed electrodes
This article highlights a label-free point-of-care detection of colistin (Polymyxin B) with modified immunosensor in chicken eggs. The manufacturing...
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Cerium oxide–doped PEDOT nanocomposite for label-free electrochemical immunosensing of anti-p53 autoantibodies
A label-free nanoimmunosensor is reported based on p53/CeO 2 /PEDOT nanobiocomposite-decorated screen-printed gold electrodes (SPAuE) for the...
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Biomimetic nanochannels for molybdate transport: application to sensitive electrochemical immunoassay for HER2
A nanochannel-based electrochemical immunoassay was developed for the detection of human epidermal growth factor receptor 2 (HER2), with molybdate as...
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One-step immunoassay based on switching peptides for analyzing ochratoxin A in wines
A one-step immunoassay is presented for the detection of ochratoxin A (OTA) using an antibody complex with switching peptides. Because the switching...
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Development of a Fluorescence Polarization Immunoassay for the Quantification of Tylosin in Honey
AbstractA fluorescence polarization immunoassay method has been developed for the determination of antibiotic tylosin in honey. For this purpose,...
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Near-infrared carbon dots for cell imaging and detecting ciprofloxacin by label-free fluorescence sensor based on aptamer
A label-free fluorescence sensor based on near-infrared carbon dots (NIR-CDs) and aptamer is described for the highly sensitive and selective...
