Assay News and Research

RSS

New assay using fresh uncultured lung tumor cells could guide personalized treatments

A new study from the University of Helsinki shows that cells that are freshly isolated from lung cancers can be used to create robust drug response data. This approach can identify actionable or non-responsive treatments, illustrated by a case study in which the assay was used to guide the compassionate treatment of a patient.

18 Aug 2021

Study suggests Harmony COVID-19 assay is superior to laboratory-based tests

A new study suggests a new coronavirus test developed by scientists from the University of Washington and the Brotman Baty Institute for Precision Medicine produces faster and more sensitive results than conventional PCR tests to measure severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) viral RNA.

18 Aug 2021

Specificity of serological assays against SARS-CoV-2 in patients with parasitic infections

A new study available on the pre-print server medRxiv* aims to assess the specificity of the serological assays of SARS-CoV-2 antibodies among patients known to have a tissue-borne parasitic infection or those who reside in areas where the virus is endemic.

18 Aug 2021

P681R spike mutation enhances replication efficiency of SARS-CoV-2 delta variant

A team of scientists from the University of Texas, USA, has recently revealed that the P681R spike mutation is responsible for increased infectivity of the delta variant of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The P681R spike mutation increases the replication of the delta variant by increasing the dissociation of S1 and S2 subunits at the furin cleavage site. The study is currently available on the bioRxiv* preprint server.

18 Aug 2021

Researchers confirm the speed, simplicity and accuracy of new COVID-19 testing method

Researchers from the University of Birmingham, U.K., have confirmed the speed, accuracy, and simplicity of a novel, a highly sensitive testing method for COVID-19 that can be deployed at entertainment venues, airport arrival terminals, and in remote settings where clinical testing laboratories are not available.

17 Aug 2021

Sino Biological Announces Successful Closing of 4.98 Billion RMB Public Offering and Listing on the Shenzhen ChiNext Stock Exchange

Sino Biological, Inc. (“Sino Biological” or the “Company”), a biotechnology company which provides biological research reagents and related technical contract research services, announced a successful listing on the Shenzhen Stock Exchange subsidiary ChiNext under the stock abbreviation Sino Biological and stock code 301047.

From Sino Biological Inc. 17 Aug 2021

Data reinforces SAB-185’s potential to neutralize SARS-CoV-2 variants

A study, available on the pre-print server bioRxiv*, evaluated the neutralizing capacity of a fully human polyclonal antibody (SAB-185) against the Delta, Kappa, and Lambda variants using a lentiviral-based pseudovirus assay.

17 Aug 2021

How delta and kappa variants of SARS-CoV-2 evade the immune system

A new study, available on the bioRxiv* preprint server, describes the neutralizing ability of the monoclonal antibodies against the variants and the difference of the ACE2 binding affinity found in the variants.

17 Aug 2021

In Southeast Asia, robust immunity found up to 9 months after SARS-CoV-2 infection

Now, a new study posted to the bioRxiv* preprint server focuses on functional immune memory to SARS-CoV-2, up to nine months in a Southeast Asian cohort, in the absence of re-infection.

16 Aug 2021

Moderna COVID-19 vaccine safe and efficacious in adolescents according to a new study

The safety, immunogenicity, and efficacy of the vaccines in adolescents are largely unknown. Now, a new study published in the New England Journal of Medicine evaluates the safety and efficacy of the mRNA-1273 vaccine in adolescents (12-17 years of age).

16 Aug 2021

Viral load could not predict transmissibility of SARS-CoV-2, study finds

The transmission of SARS-CoV-2 virus is dependent on many factors. Although some in vitro studies indicate that the amount of virus isolated from infected individuals affects the successful rate of virus transmission, whether the viral load carried at the individual level can determine transmissibility was unknown.

16 Aug 2021

Obtained SARS-CoV-2 immunity, naturally or via vaccination persists 12 months

In a research paper recently uploaded to the preprint server medRxiv* by Havervall et al. (August 12th, 2021), neutralizing antibody titers towards wild-type SARS-CoV-2 and several variants of concern in individuals having either been vaccinated or infected with mild COVID-19 one year earlier are assessed, finding a reduced neutralization capacity against some strains.

16 Aug 2021

Response to a third SARS-CoV-2 vaccine dose amongst immunocompromised

In a research paper recently uploaded to the preprint server medRxiv* by Schrezenmeier et al. (August 12th, 2021) the potential benefit of three vaccine doses in either a homogenous or heterogeneous dosing regimen amongst kidney transplant patients is assessed, finding that the search for viable vaccination approaches amongst these patients remains an urgent medical need.

16 Aug 2021

Primate study shows benefit of mRNA vaccine booster shot against SARS-CoV-2 variants

In a recent bioRxiv* preprint research paper, a large group of US scientists demonstrate how a booster dose of the mRNA-1273 vaccine can substantially improve both the potency and range of neutralizing antibody responses and mediate protection against upper and lower airway infection by a range of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) variants of concern – even those relatively resistant to in vitro neutralization.

16 Aug 2021

Research suggests toll-like receptor 4 appears to play role in severe COVID

A group of researchers re-evaluated their previously proposed hypothesis, which stated that the TLR4 activated by the spike glycoprotein S1 domain increases ACE2 expression and, thereby, aids in COVID-19 infection.

16 Aug 2021

Direct evidence in hamsters shows SARS-CoV-2 is airborne

Evidence suggests that severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) can be transmitted without contact by respiratory droplets and aerosols bearing the virus when coughing, sneezing, speaking, and breathing. The virus has been cultured from aerosols collected nearby COVID-19 patients, and such aerosols can linger in still air for hours.

15 Aug 2021

SARS-CoV-2 detection by machine learning surface-enhanced Raman spectroscopy

Surface-enhanced Raman spectroscopy is a highly sensitive molecule characterization method, significantly more sensitive than ordinary Raman spectroscopy due to the excitation of Raman modes matching the plasmon resonance frequency of the surface metal utilized, usually gold, silver, or copper.

11 Aug 2021

Immunogenicity of mRNA vaccine against emerging strains of SARS-CoV-2 in immunocompromised patients

A study measured neutralization of SARS-CoV-2 and vaccine responses in immunocompromised patients with systemic inflammatory diseases.

11 Aug 2021

Evaluation of mRNA vaccine responses with a surrogate SARS-CoV-2 viral neutralization assay

In the current study, the authors evaluate several different competitive ELISAs that could be used to measure serum antibodies.

11 Aug 2021

Plant-based virus-like particle vaccine induces durable immune response against SARS-CoV-2 variants

Scientists from Germany and Belgium have recently described the immunogenicity of a plant-based virus-like particle vaccine against severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2). The vaccine induces robust antibody and T cell responses for at least 6 months. Moreover, the vaccine demonstrates potent neutralizing efficacy against the B.1.1.7, B.1.351, and P1 variants of SARS-CoV-2.

11 Aug 2021

Assay News and Research

New assay using fresh uncultured lung tumor cells could guide personalized treatments

Study suggests Harmony COVID-19 assay is superior to laboratory-based tests

Specificity of serological assays against SARS-CoV-2 in patients with parasitic infections

P681R spike mutation enhances replication efficiency of SARS-CoV-2 delta variant

Researchers confirm the speed, simplicity and accuracy of new COVID-19 testing method

Sino Biological Announces Successful Closing of 4.98 Billion RMB Public Offering and Listing on the Shenzhen ChiNext Stock Exchange

Data reinforces SAB-185’s potential to neutralize SARS-CoV-2 variants

How delta and kappa variants of SARS-CoV-2 evade the immune system

In Southeast Asia, robust immunity found up to 9 months after SARS-CoV-2 infection

Moderna COVID-19 vaccine safe and efficacious in adolescents according to a new study

Viral load could not predict transmissibility of SARS-CoV-2, study finds

Obtained SARS-CoV-2 immunity, naturally or via vaccination persists 12 months

Response to a third SARS-CoV-2 vaccine dose amongst immunocompromised

Primate study shows benefit of mRNA vaccine booster shot against SARS-CoV-2 variants

Research suggests toll-like receptor 4 appears to play role in severe COVID

Direct evidence in hamsters shows SARS-CoV-2 is airborne

SARS-CoV-2 detection by machine learning surface-enhanced Raman spectroscopy

Immunogenicity of mRNA vaccine against emerging strains of SARS-CoV-2 in immunocompromised patients

Evaluation of mRNA vaccine responses with a surrogate SARS-CoV-2 viral neutralization assay

Plant-based virus-like particle vaccine induces durable immune response against SARS-CoV-2 variants

Measuring Drug-Target Residence Times with Biochemical Assays eBook

How Omics Technologies Are Transforming Biological Research and Drug Discovery

How microplastics and bacteria interact to drive antibiotic resistance

Single-cell proteomics: Revealing proteome diversity from cellular heterogeneity to non-canonical biology

Latest News