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In Vitro Expansion of CD34+/CD38- Human Hematopoietic Progenitor Cells in a Serum-free and Xeno-free Stem Cell Culture Media

In vitro culture of human hematopoietic stem cells in PromoCell’s serum-free/xeno-free HPC Expansion Medium DXF. Explore over 350 PromoCell products

Endothelial Cell Tube Formation Angiogenesis Assay

Cell culture protocol: the endothelial tube formation assay to study angiogenesis using HUVECs and other endothelial cell types. Explore over 350 PromoCell products.

4 Categories of Greener Alternatives

See how we classify the impact of our Greener Alternatives Platform.

Papo com Ciência 4: o futuro sustentável dos negócios

Puriﬁcation or Removal of Serine Proteases, such as Thrombin and Trypsin, and Zymogens

This page shows how to Purify or remove serine proteases with a Benzamidine Sepharose 4 Fast Flow, Benzamidine Sepharose 4 Fast Flow from Cytiva.

Performing a Purification of IgG Antibodies with Protein G Sepharose® 4 Fast Flow

This page shows how to separate IgG antibodies by afﬁnity chromatography using Protein G Sepharose 4 Fast Flow from Cytiva.

Colorimetric Detection of Western blot using 4-Chloro-1-Naphthol Solution Protocol

This solution is used as a substrate for detecting horseradish-peroxidase conjugates in Western blotting.

Analytical & Chromatography Online Journal

Now, from the makers of the Reporter and Analytix, coupled with the 350 years of our expertise, we bring you...

Biglycan

Biglycan is a 200-350 kDa(proteoglycan consisting of a 45 kDa core protein and two chrondroitin/dermatan sulfate glycosaminoglycan chains.

Hematopoietic Stem & Immune Cell Culture

Explore over 350 PromoCell products on Sigma.com, including cryopreserved blood cells and cell culture media for various human cells.

Immunoprecipitation of FLAG Fusion Proteins Using Monoclonal Antibody Affinity Gels

Protocol for immunoprecipitation (IP) of FLAG fusion proteins using M2 monoclonal antibody 4% agarose affinity gels

Nickel Carbonyl

Analysis of nickel carbonyl, nickel carbonyl in air, organometallics in air, exposure limits for nickel carbonyl, ni(co)4

Neuronal Mesenchymal Stem Cells

Protocol to differentiate human mesenchymal stem cells into neurons with extensive dendrites and axons in 3 days. Explore over 350 PromoCell products on Sigma.com.

Derivatization Agents for LC/MS – An Improved Detection of Estradiol with ESI-MS

Improved LC/MS Detection of Estradiol using 4-(Dimethylamino) benzoyl chloride (DMABC) derivatization agent relative to dansyl chloride.

Trilineage Differentiation of Multipotent Human Mesenchymal Stem Cells (MSCs) into Osteocytes, Adipocytes and Chondrocytes

Osteogenesis, adipogenesis and chondrogenesis differentiation protocols and media for human mesenchymal stem cell culture. Explore over 350 PromoCell products on our company website.

Software Simplifies Compliance with 21 CFR Part 11 and EudraLex Good Manufacturing Practice Volume 4 Annex 11

How software can simplify 21 CFR Part 11 and EudraLex Volume 4 Annex 11 compliance and provide additional benefits such as access control, audit trails and easier search and retrieval.

Chromolith® WidePore 300 HPLC Columns

Analytical Chromolith® HPLC columns for Bio applications, 300A mesopores: RP-18, RP-8, RP-4, Prot-A, Epoxy

The Endothelial Cell Transwell Migration and Invasion Assay

Cell culture protocol: the endothelial cell transwell migration and invasion assay used to study angiogenesis and cancer cell metastasis. Explore over 350 PromoCell products.

Heavy Metal Analysis of Cannabis sativa by ICP-MS and the Need for Proper Sample Homogenization

A 4-step comprehensive ICP-MS workflow including sample homogenization, with standard addition calibration method, to determine heavy metals in Cannabis sativa.

ELISA Protocols

This article offers 4 popular ELISA protocols: Sandwich ELISA protocol, Phosphorylation Assay Procedure, EIA Assay Procedure, & Cell-based Assay Procedure.

In Vitro Differentiation of Human PBMC Derived Monocytes into M1 or M2 Macrophages in a Serum-free and Xeno-free Cell Culture Media

Generate phagocytic M1 and M2 macrophages from human PBMCs in 10 days in serum-free and xeno-free cell culture media. Explore over 350 PromoCell products.

Vascular Pericytes: Frequently Asked Questions (FAQs)

What are pericytes? What are common pericyte markers? Are pericytes mesenchymal stem cells? Learn more about pericytes in our FAQ page. Explore over 350 PromoCell products.

Complete Whole Transcriptome Amplification Kit Protocol (WTA2)

WTA2, a Whole Transcriptome Amplification (WTA) method, allows for representative amplification of nanogram quantities of total RNA in less than 4 hours without 3-bias

Purification using Glutathione Sepharose® High Performance, Glutathione Sepharose® 4 Fast Flow, and Glutathione Sepharose® 4B

This page shows how to purify GST-tagged proteins using Glutathione Sepharose from Cytiva.

HPLC Analysis of Various Cationic Polymers on TSKgel® PWXL-CP Columns

Separation of Polyacrylic acid (PAA) 438 kDa; Polyacrylic acid (PAA) 235 kDa; Polyethylenimine (PEI) 266 kDa ; Poly(dimethyl diallyl ammonium chloride) (PIDADMACl) 204 kDa; p-Aminosalicylic acid (PAS) 7800 Da; p-Aminosalicylic acid (PAS) 257 kDa; Cationic dextran (11 kDa); Chitosan

In Vitro Differentiation of Human iPS Cells into Airway Epithelial Lung Organoids for Respiratory Disease Research Applications

Lung organoids are valuable 3D models for human lung development and respiratory diseases. The 3dGRO™ differentiation protocol generates organoids from human iPSCs in 4 steps.

The Formulation Box - Biomolecules Stabilization and Aggregation Prevention

You are cordially invited to discover in 4 steps how you can improve your strategies for biomolecules formulation development and extend your knowledge about viscosity reduction capabilities

The Formulation Box - Biomolecules Stabilization and Aggregation Prevention

You are cordially invited to discover in 4 steps how you can improve your strategies for biomolecules formulation development and extend your knowledge about viscosity reduction capabilities

3D Neurosphere Culture Media

3D neurosphere culture protocol to expand human U-87 MG glioblastoma cells in serum-free/xeno-free stem cell culture media. Explore over 350 PromoCell products on Sigma.com.

Serum free cancer cell line media

Defined culture conditions. Consistent growth of human cancer cell lines in PromoCell’s serum-free/xeno-free Cancer Cell Line Media-XF. Explore over 350 PromoCell products on Sigma.com

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