Immunoassays News and Research

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Lateral flow assays detect a compound of interest in a compact, paper-based system. Tests such as pregnancy tests are based on lateral flow assays, with many more available for various compounds or even pathogens.

Gyros Protein Technologies introduces Gyrolab Bioaffy 4000 CD to extend sensitivity of immunoassay CD range

Gyros Protein Technologies AB today announced the introduction of Gyrolab® Bioaffy™ 4000 CD for immunoassay applications in biotherapeutic workflows.

From Gyros Protein Technologies AB 27 Jan 2021

SARS-CoV-2 anti-N rigid monoclonal antibodies provide accurate early diagnosis

An interesting new preprint research paper that was posted on the bioRxiv* server recently describes the use of rigid monoclonal antibodies (mAbs) in contrast to flexible mAbs, and how this affects the binding of multiple mAbs to the same antigen.

17 Jan 2021

Reliable Antibodies Testing for SARS-CoV-2

In this interview, Poncho Meisenheimer, VP of R&D at Promega, talks to News-Medical Life Sciences about the importance of having the reliability for SARS-Co-V-2 antibody tests.

From Promega Corporation 15 Dec 2020

SARS-CoV-2 immunity in the U.S. remains low

Seroprevalence studies indicate that less than 10% of people in the U. S. have detectable antibodies against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) from July to September 2020.

30 Nov 2020

Bioelectronic rapid test for COVID-19

A recent study presents a bioelectronic sensor platform to detect protein at the single-molecule level that is simple, rapid, and robust enough for widespread POC (point-of-care) or bedside application.

18 Nov 2020

Temporal predictors of SARS-CoV-2 antibodies

Researchers in a recent paper published as a preprint on the preprint medRxiv, study the clinical factors, the laboratory assays to streamline plasma donor selection, and the durability of nAb responses in adults.

11 Oct 2020

Production of six monoclonal antibodies against SARS-CoV-2 spike protein

Youjia Guo et al. in a recent bioRxiv preprint paper demonstrate the robust performance of mouse anti-SARS-CoV-2 spike monoclonal antibodies in immunoassays, including western blotting, ELISA, immunofluorescence, and immunoprecipitation and also neutralizing activity in vitro against SARS-CoV-2 infection.

5 Oct 2020

AbC-19 blood test detects COVID-19 antibodies 20 weeks after first symptoms/PCR positive result

Serological antibody immunoassays are one of the essential tools to combat severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection. In a new study, Immunoglobulin G (IgG) antibodies are detected in a large cohort, lasting up to 140 days. The researchers propose an alternative to reverse transcription-polymerase chain reaction (RT-PCR) positive status as a standard for assessing SARS-CoV-2 antibody assays and show robust performance metrics for the AbC-19 rapid test.

5 Oct 2020

Discovery of high affinity binders for SARS-CoV-2 spike protein

An exciting, 'tour-de-force' paper by researchers from the Massachusetts Institute of Technology describes de novo discovery of high-affinity peptide binders for SARS-CoV-2 spike glycoprotein, which opens the door for the development of rapid viral identification or conjugates for virus-directed delivery of therapeutics.

30 Sep 2020

Self-collection of blood for COVID-19 antibody testing may be a reliable and easy alternative

Some evidence suggests that IgGs appear at 6-15 days after infection and may persist for months. However, large-scale testing over time is required to understand the immunological response to COVID-19 with greater accuracy. A recent pilot study published on the preprint server medRxiv in September 2020 reports the use of self-collected capillary blood for serology, with highly promising results.

29 Sep 2020

Complex SARS-CoV-2 serology means universal immunological assay is not feasible

As we improve our understanding of immune responses and correlates of protection against the severe acute respiratory syndrome coronavirus (SARS-CoV-2), two UK researchers emphasize that we will probably utilize different assays to tackle specific questions. Their commentary is published in the prestigious journal Lancet Infectious Diseases.

27 Sep 2020

Siemens’ SARS-CoV-2 antibody immunoassays meet regulatory targets

New research being presented at the ESCMID Conference on Coronavirus Disease (ECCVID, online 23-25 September) shows that, in a head-to-head comparison of five tests used to detect SARS-CoV-2 antibodies (known as 'immunoassays'), an assay manufactured by Siemens and one developed by an academic partnership led by the University of Oxford had the most accurate results.

24 Sep 2020

New Gyrolab AAVX Titer Kit launched to support the development cell and gene therapies

Gyros Protein Technologies AB, a pioneer in automated nanoliter-scale immunoassays and a leading provider of peptide synthesizers and reagents, today announced the introduction of Gyrolab® AAVX Titer Kit for adeno-associated virus (AAV) vector titer determination in AAV vector manufacturing.

From Gyros Protein Technologies AB 3 Sep 2020

Brazilian state of Maranhão heading towards SARS-CoV-2 herd immunity, say researchers

Researchers at the Federal University of Maranhão, Brazil, have conducted a study suggesting that the state of Maranhão is well on its way to acquiring herd immunity to severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the agent that causes coronavirus disease 2019 (COVID-19).

2 Sep 2020

Pfizer/BioNTech COVID-19 vaccine candidate BNT162b2 profiled for large scale clinical trials

Although two RNA-based severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) vaccine candidates elicited similar, dose-dependent neutralizing antibody titers in both younger and older adults, a recent study by researchers from the U.S. and Germany has shown that BNT162b2 is associated with less systemic reactogenicity in elderly individuals – supporting its selection for further phase 2/3 clinical trials. The study is currently available on medRxiv* preprint server.

23 Aug 2020

Promega introduces new serological antibody test for COVID-19

Promega Corporation today announced the launch of its new serological antibody test for COVID-19 to detect the presence of antibodies against the SARS-CoV-2 virus.

From Promega Corporation 13 Aug 2020

Fujirebio announces launch of clinical testing for new SARS-CoV-2 Antigen assay

Fujirebio Diagnostics, Inc., a consolidated subsidiary of H.U. Group Holdings, Inc, announced today the initiation of clinical testing needed for the submission of its new SARS-CoV-2 Antigen assay for EUA (Emergency Use Authorization) from the U.S. Food and Drug Administration.

6 Aug 2020

MP Biomedicals and A*STAR jointly develop rapid antibody test kit for COVID-19

MP Biomedicals Asia Pacific Pte Ltd, a diagnostic corporation which has been operating for over 30 years focusing on various infectious disease testing development and manufacturing, today announced the successful development of a rapid antibody test kit for COVID-19, in collaboration with the Agency for Science, Technology and Research.

From MP Biomedicals, LLC 25 Jul 2020

Seroprevalence of SARS-CoV-2 antibody among blood donors in China

Now, a study published on the preprint server medRxiv* in July 2020 reports on the low seroprevalence of antibodies to the virus, now designated severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), among blood donors in Wuhan, the Chinese city it all started in, and two other equally large cities in China.

17 Jul 2020

FIND and Unitaid launch call for EOI to fill major diagnostic gaps in COVID-19 detection

The Foundation for Innovative New Diagnostics and Unitaid announced today that the organizations have launched a call for expressions of interest to accelerate the availability and manufacturing scale-up of rapid diagnostic tests for the detection of SARS-CoV-2 antigens. Reliable, affordable Ag RDTs have been identified as key tools in the global response to COVID-19, as they could enable robust detection of active SARS-CoV-2 infection for both patient management and contact tracing purposes in decentralized settings.

10 Jul 2020