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antibodies

Articles tagged antibodies. Tags group methods across clusters so a technique can be found from more than one route.

6 articles

Gloved hand holding a stained tissue slide beside a rack of stained microscope slides

immunoassays

Choosing and checking a primary antibody

How to choose and check a primary antibody: host, clonality, application claims, and controls that show the signal is the intended target.

8 October 2026 · 7 min read

Gloved hand sliding a yellow-developed ELISA plate into a microplate reader drawer

Pillar · immunoassays

ELISA formats controls and readout

ELISA formats, controls and readout: how direct, sandwich and competitive assays turn a binding event into a number that stays inside the curve.

8 October 2026 · 8 min read

Gloved hand sliding a yellow-developed ELISA plate into a microplate reader drawer

immunoassays

Questions before an antibody enquiry

Target, species, application, immunogen, host, conjugate and storage on arrival. Each question stops a different wrong reagent from being quoted.

8 October 2026 · 10 min read

Gloved hand sliding a yellow-developed ELISA plate into a microplate reader drawer

immunoassays

Recombinant versus polyclonal reagents

Polyclonal, hybridoma monoclonal and recombinant antibodies differ in epitope count and lot definition. Choose the class in the specification, not by slogan.

8 October 2026 · 9 min read

Gloved hand sliding a yellow-developed ELISA plate into a microplate reader drawer

immunoassays

Sodium azide and downstream live-cell work

Sodium azide preserves many antibody stocks, inhibits peroxidase, and poisons cells. Check the vial before an HRP plate or a live culture.

8 October 2026 · 9 min read

Gloved hand sliding a yellow-developed ELISA plate into a microplate reader drawer

immunoassays

Storage of antibodies after the first thaw

Aliquot before the first thaw, freeze once, and thaw a working tube on ice. The vial sheet sets the temperature. A warm shipment stays quarantined.

8 October 2026 · 11 min read