10102 results for 'nt prepar'

Protein Analysis · ProtocolsWestern Blot Sample Preparation: A Practical GuideMost failed Western blots fail before the gel is loaded. Lysis buffer choice, inhibitor selection, accurate protein quanti

Quick answer A researcher preparing a Human IL-18 ELISA wasn't sure whether the protocol's “300-fold” HRP-Streptavidin step meant adding 40 µL of concentrat

Biomarkers, measurable indicators of biological processes or responses to therapeutic interventions, play a pivotal role in modern healthcare. They provide clinicians with valuable information

Protocols · Western BlottingBoiling Proteins for Western BlottingHeating protein samples in SDS loading buffer denatures proteins and coats them in a uniform negative charge for clean SDS-PAGE s

Immunology · Cell IsolationPeripheral Blood Mononuclear Cells (PBMCs): Composition, Isolation and UseMononuclear cells are the leukocytes with a single, unlobed nucleus — lymphocytes and monocytes. Is

Quick answer On the GDF-6 (Growth Differentiation Factor 6) ELISA Kit, a researcher saw an elevated blank (OD ≈ 0.41) with the two lowest standards reading at or below it, and no signa

Cryopreservation of stimulated T cells is a common technique in immunology research, allowing for long-term storage while maintaining their functional viability. Stimulated T cells—especi

Western blotting, a cornerstone technique in molecular biology, biochemistry, and immunogenetics, is pivotal for detecting specific proteins in a sample. Its applications span various scientific f

Techniques · Gel ElectrophoresisAgarose vs Polyacrylamide: A Comparative AnalysisAgarose and polyacrylamide are the two workhorse gel matrices of electrophoresis. Agarose gels resolve larger DNA and R

Introduction Transformation of bacteria with plasmids is not only of note for bacterial studies but also can be used for gene expression studies in mammalian cells. Most plasmids are of bact

Quick answer On the Periaxin (PRX) ELISA, a researcher found every serum sample reading above the top standard — optical density (OD) around 2.8–3.0 at 450 nm, well beyond the highest

In Vivo Methods · ProtocolsMouse Injection Guide: Intraperitoneal, Subcutaneous, Intramuscular & Intravenous RoutesRoute choice and injection technique determine how much of a dose actually reaches it

Protocols & Assay Guides | ELISA, Multiplex, Western Blot | Assay Genie

Cell culture techniques are fundamental to biomedical research, providing crucial insights into cellular functions, drug discovery, and disease mechanisms. A critical step in cell culture is the p

The use of M2 Supplement in organoid culture has revolutionized the way researchers cultivate and maintain these three-dimensional (3D) cellular models. Organoids—self-organizing cell clu

QUICK ANSWER A researcher ran a panel of EMT-marker ELISA kits (E-cadherin, claudin-1, N-cadherin, vimentin, ZEB1, TWIST1) on breast cell-line lysates and found E-cadherin reading "pos

Flow cytometry stands as a pivotal technique in the realms of molecular biology and immunology, enabling the analysis of physical and chemical characteristics of cells or particles as they flow in

Making the switch! This article provides some help on CV writing tips for scientists for PhDs and PostDocs looking for jobs outside of academia and what they might need to

TUNEL Assay Kits | 1-Step In Situ Apoptosis Detection | Assay Genie

Quick answer: A researcher subtracted the blank from a competitive ELISA (a Serotonin kit) and every result turned negative. In a competitive assay the signal is inversely proportional to

Western Blot Protocol & Troubleshooting Guide | 14 Steps + 101 Tips | Assay Genie

Clinical · Immunology Guide IgA Test: Normal Ranges, Results & What They Mean [2026] What the immunoglobulin A blood test measures, how result

Quick answer On the Fatty Acid Oxidation (FAO) Assay Kit (BR00001), a researcher found that a subset of skeletal-muscle samples returned negative values once the control well was subtr

The IgA test, also known as immunoglobulin A test, is a diagnostic tool used to measure the levels of IgA antibodies in the blood. Immunoglobulin A (IgA) is a type of antibody that plays a cruc

Written by Seán Mac Fhearraigh, PhD  •  Updated: 19 May 2026  •  ~10 min read Quick Answer A sandwich ELISA uses two antibodies — a capture ant

Cell-Based ELISA Kits | 1,600+ Total & Phospho Targets | Assay Genie

The Double-Edged Sword: How Neutrophil Traps Can Both Help and Hinder Cancer's Spread In the intricate battlefield of the human body, the immune system’s foot soldiers, neutrophils, have long been re

Site-Directed Mutagenesis | Protocol, Kits & Troubleshooting | Assay Genie

Western blotting is a powerful and widely used technique in molecular biology, essential for detecting and quantifying specific proteins in complex biological samples. However, despite its popu

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

What Are Personalized Cancer Vaccines? Personalized cancer vaccines are a cutting-edge approach in cancer treatment that are designed to activate a patient's immune sy

Molecular Biology · ProtocolsTypical Workflow of CRISPR-Cas9 Genome EditingA CRISPR experiment is only as good as the steps around the cut. This guide walks the full workflow — designing and scoring a

Soporte técnico ELISA: qué comprobar antes de llamar Si su ensayo ELISA falla, haga estas tres comprobaciones inmediatas: controles, equipo y reactivos, en ese orden. Antes de contactar con soporte t

Immunohistochemistry (IHC) stands as a critical tool in the realm of biomedical research and diagnostic practices, offering a bridge between molecular insights and the intricate visualization of t

Neuroscience · Glial CellsOligodendrocytes: Myelination, Lineage Markers and DiseaseOligodendrocytes are the myelinating glia of the central nervous system. A single oligodendrocyte can wrap segments

Written by Seán Mac Fhearraigh, PhD  •  Updated: 19 May 2026  •  ~9 min read Quick Answer ELISA and Western Blot are both antibody-based protein detection methods. ELISA is faster, higher through

Dilución de anticuerpos: protocolo, cálculos y control de calidad Empiece con una serie de diluciones (por ejemplo, 1:10 seguida de una serie 1:2) y siempre incluya controles positivos y negativos pa

Sample Preparation · ImmunoassaySerum vs Plasma: Key Differences and When to Use EachSerum and plasma come from the same blood draw but are not interchangeable. One is collected after clotting, the ot

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

QUICK ANSWER If your ELISA returns sample concentrations that are orders of magnitude too high, the assay itself is usually fine — the error is almost always in data analysis. The most

MORV0013 functioned effectively in both qPCR machines and water baths, with or without paraffin oil, maintaining consistent sensitivity and specificity. MORV0013 performed reliably betwe

Quick answer A researcher running a Rat Eotaxin/CCL11 (Eotaxin) sandwich ELISA saw sample readings sit above the top standard and wells turn colour the instant TMB was added — even aft

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

Quick answer A researcher measuring dopamine in mouse brain tissue got no detectable signal and, with many samples to run, asked whether the full standard curve could be skipped to sav

Cell Culture · ProtocolsHaemocytometer Cell Counting: Procedure, Calculation and Common ErrorsA haemocytometer turns a known chamber volume into a cell concentration, and the whole method rests on fou

B Cell Types, Antigen Recognition & Activation A comprehensive guide to B cells! Introduction B cells, a vital component of the immune system, play

A depletion experiment is only as good as the depletion you can prove. Injecting a functional-grade antibody and assuming the population is gone is the most common failure mode in in vivo immunology.

Para western blot con detección de fosforilación, use TBS o TBS-T: el fosfato de PBS puede interferir con anticuerpos anti-fosfo y con fosfatasa alcalina. Para lavados isotónicos, ELISA y cultivo

Flow Cytometry · GatingExcluding Doublets in Flow Cytometry: Pulse Geometry and Gating StrategyTwo cells passing the laser together are recorded as one event, with roughly double the signal. In DNA co

Protein Glycosylation for Labs: Mechanisms, Workflows, and Reagent Tips Protein glycosylation is the enzymatic covalent attachment of sugar chains (glycans) to specific amino acid side chains, most co

Immunology Guide 5 Types of Immunoglobulins: IgG, IgA, IgM, IgD & IgE The five antibody classes that drive immune defence — their structure, fun

Immunology · Myeloid CellsGranulocytes: Neutrophils, Eosinophils and BasophilsGranulocytes are the leukocytes with cytoplasmic granules and lobed nuclei — neutrophils, eosinophils and basophils. They

Cell Culture · ProtocolsPassaging Hybridoma Cells: A Detailed GuideHybridomas are productive but temperamental. They grow in suspension, are sensitive to shear and to overgrowth, and — the problem tha

Haematology · HaemostasisPlatelets: Formation, Structure, Activation and Clinical SignificancePlatelets are anucleate fragments shed from megakaryocytes, and they carry out primary haemostasis — adher

Cell Cycle · KinasesCyclins and Cyclin-Dependent Kinases: Regulation, Substrates and Mitotic ControlCDKs are inactive on their own. They require a cyclin partner, and because cyclin levels rise and fa