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Sample Dilution Range Calculation for Competitive ELISA kits(Post)
Quick answer A competitive ELISA is running correctly when the blank (zero standard) gives the highest OD, the standard curve drops smoothly with rising concentration, and your samples land in the
PCR Detection of COVID-19 (SARS-CoV-2)(Post)PCR Detection of COVID-19 (SARS-CoV-2) Contents Background Assay Information Sample Types Upp
How does Acute Myeloid Leukaemia start?(Post)I have been in the situation that I’m sure many of us have. I work on genes, which if you name to any right-minded individual, sound like a random string of nonsensical gibberish. So, maybe
Co-Immunoprecipitation (co-IP) Protocol(Page) Immunohistochemical Staining, Antibodies & Buffers(Page) Enhancing Cell Counting Accuracy with a Haemocytometer: A Comprehensive Guide(Post)Cell counting is an important part of many different scientific experiments, enabling researchers to gather crucial data about cell populations and their characteristics. In this step-by-st
Protein Kinases: Overview, Classification and Therapeutic Potential(Post)Cell Signalling · EnzymologyProtein Kinases: Function, Classification, Structure and InhibitorsProtein kinases transfer a phosphate group from ATP onto specific residues of target proteins, switching
Adenosine Assay: Backwards Standard Curve & Negative Data(Post)Quick answer A researcher's colorimetric adenosine assay looked broken — the standard curve came out with a negative slope and the calculated values made no sense. The assay itself was
ELISA Inter-Plate Variability: Same Sample, Different Results(Post)Quick answer On the Dog Beta-endorphin (BEP) ELISA Kit, a researcher ran the same canine serum aliquots on two plates from the same lot and saw roughly double the concentration on one
Stem Cells: What Are They and How They Can Help Treat Diseases(Post)Stem Cells: What are they and how they can help treat diseases Stem cells are a unique population of cells that possess the ability to self-renew and differentiate into specialized ce
Liquid Biopsy and ctDNA: The New Frontier in Cancer Detection(Post)Imagine a future where a simple blood test could detect cancer in its earliest stages, long before symptoms appear. This isn't science fiction; it's the rapidly advancing reality of liquid biopsy, a r
Types of PCR – 7 Methods, Principles & Applications(Post)Molecular Biology · Techniques Guide Types of PCR – 7 Methods, Principles & Applications PCR stands as a cornerstone in molecular biology, ena
Innate Immune System Explained: Step-by-Step Process & Key Concepts(Post)Immunology · Cell BiologyCells of the Innate Immune System: Types, Functions and MarkersThe innate immune system responds within minutes, without prior exposure, using cells that recognise conserved m
The Lenti Viral Vector System: A New Way to Deliver Genetic Therapies(Post)Gene Delivery · Viral VectorsLentiviral Vectors: Design, Production and Use in Gene DeliveryLentiviral vectors integrate their cargo into the host genome and transduce dividing and non-dividing cells
How do Neurons work?(Post)A neuron is a cell that processes and transmits information through electrical and chemical signals. There are trillions of them in the human brain, which is able to carry out so many complex
Red Blood Cell Peroxidase Interference in Competitive ELISA(Post)QUICK ANSWER A researcher ran a competitive 2,3-bisphosphoglycerate (2,3-BPG) ELISA on red blood cell (RBC) lysate. The standard curve was textbook, yet every lysate sample read at the
TIGIT, DNAM-1 and the CD155 Axis: Pathway, Function and Assays(Post)CD155 is read by four different receptors, and only one of them turns the killing programme on. The nectin and nectin-like ligands induced on stressed and transformed cells are simultaneously an acti
The Role of Zonulin In Intestinal Permeability (Post)Gastroenterology · Barrier BiologyZonulin and Intestinal PermeabilityZonulin is the best-characterised endogenous regulator of intestinal tight junctions — the protein that opens the gut barrier on de
ELISA Cross-Reactivity: Tagged Standards vs Native Samples(Post)Quick answer A researcher validating two isoform assays — the Human ALT1 (HUFI00557) and ALT2 (HUFI00593) ELISA kits — spiked the ALT2 kit's standard onto the ALT1 kit's plate and saw
A Guide To Tau Proteins & Tauopathies(Post)Neuroscience · BiomarkersA Guide to Tau Proteins & TauopathiesTau keeps the neuronal cytoskeleton standing up. When its phosphorylation goes wrong, the same protein becomes the aggregate that defines