BIOSENSING AND MEDICAL DIAGNOSTICS BASED ON ULTRA SENSITIVE OPTICAL AND MAGNETIC MEASUREMENTS

2021 ◽  
Vol 1 (19) ◽  
pp. 238-240
Author(s):  
A.V. Orlov ◽  
V.A. Bragina ◽  
N.V. Gyteneva ◽  
M.P. Nikitin ◽  
B.G. Gorshkov
Keyword(s):  
Food Safety ◽  
Magnetic Measurements ◽  
Detection Limits ◽  
Medical Diagnostics ◽  
Protein Biomarkers ◽  
Safety Control ◽  
Analytical Applications ◽  
Highly Sensitive

Highly sensitive methods of optical and magnetic measurements have been developed and tested for analytical applications, medical diagnostics, food safety control, etc. The achieved detection limits are unique for express assays: DNA - 6 × 10-19 mol (without amplification), haptens - 16 fg/ml, protein biomarkers - 4 pg/ml.

A highly sensitive fluorescence biosensor for detection of Staphylococcus aureus based on HCR-mediated three-way DNA junction nicking enzyme assisted signal amplification

The Analyst ◽  
2021 ◽  
Author(s):  
Chuyan Zhang ◽  
Zewei Luo ◽  
Mengfan Wu ◽  
Wei Ning ◽  
Ziyi Tian ◽  
...  
Keyword(s):  
Staphylococcus Aureus ◽  
Food Safety ◽  
Signal Amplification ◽  
Sensitive Detection ◽  
Safety Control ◽  
Food Borne ◽  
Highly Sensitive ◽  
Fluorescence Biosensor ◽  
Highly Sensitive Detection ◽  
Nicking Enzyme

Sensitive and efficient monitoring of food-borne bacteria is of great importance for food safety control. Herein, a novel biosensor for highly sensitive detection of Staphylococcus aureus (S. aureus) was constructed...

A metal-enhanced sensing platform for highly sensitive detection of C-Reactive Protein antibody and Rhodamine B, applications for cardiovascular disease and food safety

2021 ◽  
Author(s):  
Nguyen Thanh Thao ◽  
Thi Xoan Hoang ◽  
Thang Bach Phan ◽  
Jae Young Kim ◽  
Hanh Kieu Thi Ta ◽  
...  
Keyword(s):  
Cardiovascular Disease ◽  
Food Safety ◽  
Medical Diagnostics ◽  
C Reactive Protein ◽  
Enhanced Fluorescence ◽  
Reactive Protein ◽  
Sensing Platform ◽  
Highly Sensitive ◽  
Potential Applications ◽  
Highly Sensitive Detection

Potential applications of metal enhanced fluorescence (MEF) devices are associated with biosensors for the detection of trace amounts of biosciences, biotechnology, and pathogens that are relevant to medical diagnostics and...

Highly sensitive and selective chemosensors for Cu2+and Al3+based on photoinduced electron transfer (PET) mechanism

RSC Advances ◽  
2015 ◽  
Vol 5 (35) ◽  
pp. 27282-27289 ◽  
Author(s):  
Santosh Chemate ◽  
Nagaiyan Sekar
Keyword(s):  
Electron Transfer ◽  
Photoinduced Electron Transfer ◽  
Detection Limits ◽  
Highly Sensitive

Two new fluorescent PET chemosensors were synthesised from an acridine core. The sensors can be used to monitor Cu2+and Al3+in CH3CN. The detection limits for7a–Cu2+and7b–Al3+were calculated to be 2.8 × 10−7M and 5.8 × 10−7M, respectively.

A target-responsive autonomous aptamer machine biosensor for enzyme-free and sensitive detection of protein biomarkers

2018 ◽  
Vol 6 (24) ◽  
pp. 4146-4150 ◽  
Author(s):  
Mengqi Zou ◽  
Daxiu Li ◽  
Ruo Yuan ◽  
Yun Xiang
Keyword(s):  
Sensitive Detection ◽  
Protein Biomarkers ◽  
Highly Sensitive ◽  
Highly Sensitive Detection

Target-triggered operation of an aptamer machine leads to amplified and highly sensitive detection of protein biomarkers.

scholarly journals Immunosensor Based on Long-Period Fiber Gratings for Detection of Viruses Causing Gastroenteritis

Sensors ◽  
2020 ◽  
Vol 20 (3) ◽  
pp. 813 ◽  
Author(s):  
Marta Janczuk-Richter ◽  
Beata Gromadzka ◽  
Łukasz Richter ◽  
Mirosława Panasiuk ◽  
Karolina Zimmer ◽  
...  
Keyword(s):  
Optical Fiber ◽  
Medical Diagnostics ◽  
Label Free ◽  
Fiber Gratings ◽  
Fast Detection ◽  
Long Period ◽  
Highly Sensitive ◽  
Protein Receptors ◽  
Long Period Fiber Gratings ◽  
Vaccine Testing

Since the norovirus is the main cause of acute gastroenteritis all over the world, its fast detection is crucial in medical diagnostics. In this work, a rapid, sensitive, and selective optical fiber biosensor for the detection of norovirus virus-like particles (VLPs) is reported. The sensor is based on highly sensitive long-period fiber gratings (LPFGs) coated with antibodies against the main coat protein of the norovirus. Several modification methods were verified to obtain reliable immobilization of protein receptors on the LPFG surface. We were able to detect 1 ng/mL norovirus VLPs in a 40-min assay in a label-free manner. Thanks to the application of an optical fiber as the sensor, there is a possibility to increase the user’s safety by separating the measurement point from the signal processing setup. Moreover, our sensor is small and light, and the proposed assay is straightforward. The designed LPFG-based biosensor could be applied in both fast norovirus detection and in vaccine testing.

I controlli sulla circolazione dei prodotti alimentari

2009 ◽  
pp. 129-136
Author(s):  
Teresa Babuscio
Keyword(s):  
Control System ◽  
Food Safety ◽  
Key Words ◽  
European Parliament ◽  
European Regulation ◽  
Safety Control ◽  
White Spaces ◽  
Food And Feed ◽  
Set Up

- Food controls are a key issue within the European food safety arena. Since 2002 the legislator is constantly improving the control system in order to better achieve the high safety principles contained in the European regulation n.178 and the network set up in it. Thus, the regulation n. 882/2004 is specifically dedicated to food safety controls: it is the main piece of legislation concerning this aspect as it has been adopted by the co-decisions procedure which involves the European Parliament and the Council. Despite that, it left some "white" spaces to be filled by the implementing measures adopted within the so called comitology procedure in which it is the Commission to act as a co-regulator. The latter is currently implementing art. 15.5. of the regulation n. 882/2004 to set up a system of increased controls for food and feed. Key words: food safety; control system; regulation n. 882/2004.

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