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New Polymer Kit Enables IHC Staining of Two Target Antigens in One Protocol

October 3, 2017

Vector Laboratories, a leader in the development and manufacture of labeling and detection reagents for biomedical research, introduces the ImmPRESS™ Duet Double-Staining Polymer Kit for immunohistochemistry. The new kit delivers all the advantages of polymer stains including low background staining, high signal intensity and the elimination of off- target binding. The kit enables fast, well-defined localization and visualization of two different target antigens on the same tissue section.

ImmPRESS Duet combines highly active horseradish peroxidase (HRP) and alkaline phosphatase (AP) enzyme polymers, conjugated to anti-mouse IgG and anti-rabbit IgG secondary antibodies to produce a ready-to-use HRP/AP formulation.

“Our ImmPRESS Polymer systems have demonstrated a number of advantages for applications in which traditional staining is challenging,” explains Harjit Kullar, vice president of marketing for Maravai LifeSciences. “Our ImmPRESS polymer reagents have always enabled a one-step protocol. Now we are expanding the offering with a double-staining protocol, for an even more streamlined workflow. ”

About Vector Laboratories

Vector Laboratories empowers scientific advances with innovative proteomic and glycomic solutions. Supporting industries worldwide for 45 years and counting, Vector Laboratories is a trusted manufacturing partner with unmatched technical expertise and a culture of service. Customers rely on Vector Laboratories’ immunofluorescence, immunohistochemistry, glycobiology and bioconjugation products and custom manufacturing capabilities to move science forward, with impact. Vector Laboratories’ market-tested product portfolio provides the critical tools researchers need to precisely visualize and study tissues and cells, and to ultimately tackle today’s biggest healthcare challenges. The company’s products and technologies have been cited in more than 350,000 peer-reviewed publications and its catalog and custom products are relied upon by laboratories around the world. Headquartered in Newark, CA, Vector Laboratories includes a global network of more than 40 distributors. For more information about Vector Laboratories, please visit:

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