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Determination of 7 Nitrosamines in Drinking Water

Nitrosamines analysis by solid phase extraction (SPE) and subsequent gas chromatography-tandem mass spectrometry (GC-MS/MS) according to GB 5750.10-2023.

Estimation of Proline in Fruit and Vegetable Juices

Spectrophotometric determination of proline by the Ninhydrin method, per EN 1141 and German Food and Feed Code §64 LFBG 31.00-7.

RNA Therapeutics & Delivery USA

Visit us at booth #7 to learn about our solutions to help you overcome your mRNA manufacturing and LNP formulation challenges.

cOmplete™, Mini, EDTA-free Protocol

Dissolve one tablet in 10 ml aqueous buffer or water. If high proteolytic activity is present, dissolve one tablet in 7 ml buffer.

Scepter™ 3.0 Cell Counter – How it Works

Scepter™ counting is 7 to 10 times faster than hemocytometry-and also faster than other automated counters. Learn more about how this amazing technology works

Enzymatic Assay of Cathepsin B

Cathepsin B is a lysosomal cysteine proteinase with broad specificity. This protocol uses Nα–CBZ–Arg–Arg–7–amido–4–methylcoumarin as the substrate for fluorometric detection of Cathepsin B activity.

Assay of Betamethasone Sodium Phosphate by HPTLC

Development of an HPTLC based method, using Silica Gel 60 F254 plate, to determine Betamethasone Sodium Phosphate over a concentration range of 1 to 7 µg/spot.

Ultrapure Water for Sensitive LC-MS Analysis of Pesticides

Pesticides analysis by LC-MS needs pesticide-free reagent water, which can be reliably delivered by Milli-Q® IQ 7 ultrapure water systems. See data.

In Vitro Differentiation of Human PBMC and CD34+ Derived Monocytes into Mature CD83+/CD14- Dendritic Cells

Generate mature human dendritic immune cells from PBMCs or CD34+ stem cell derived monocytes in 7 days in defined and serum-free dendritic cell culture media. Explore over 350 PromoCell products.

Obtaining Ultrapure Water for Sensitive PFAS Analysis by LC-MS

Sensitive PFAS testing can be performed with ultrapure water from a Milli-Q® IQ 7 system, which eliminates detectable PFAS for reliable LC-MS/MS results. See the science, see the proof.

3D Mammosphere Culture Media

3D mammosphere culture protocol used to expand human MCF-7 and MDA-MB-231 breast cancer cells in serum-free/xeno-free stem cell culture media. Explore over 350 PromoCell products on Sigma.com.

Sensor Dyes

Nitric oxide (NO) as a signal transporter in neurons, endothelial cells and in the immune system.

Sample Preparation in Ion Exchange Chromatography

This page clarifies sample preparation, buffer exchange and desalting, removal of lipoproteins, phenol red, and low molecular weight contaminants in Ion exchange chromatography.

Sample Preparation for Chromatographic Purification

This page discusses various aspects of sample preparation for chromatographic purification.

Sample Preparation for Affinity Chromatography in Specific Groups of Biomolecules

Collagen in Gene Delivery Applications

Collagen-based delivery systems effectively deliver a range of viral and non-viral gene carriers by providing spatiotemporal control over delivery and reducing degradation rates and immune responses.

Poly(N-isopropylacrylamide)-based Smart Surfaces for Cell Sheet Tissue Engineering

Tissue engineering has become a key therapeutic tool in the treatment of damaged or diseased organs and tissues, such as blood vessels and urinary bladders.

Self-Assembly in Organic Thin Film Transistors for Flexible Electronic Devices

Flexible electronic circuits and displays based on organic active materials are future generations of products that may eventually enter mainstream electronics market.

2-Hydroxyglutarates Analysis by LCMS

Reversed phase application for the analysis of S-2-hydroxyglutaric acids and R-2-hydroxyglutaric acids by chiral LCMS, using a CHIROBIOTIC® R Column.

Low Bleed

Low Bleed - Supelco GC & GC-MS Capillary Columns

Nanomaterials for Energy Storage in Lithium-ion Battery Applications

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

Antifoams

Antifoams are supplied as two basic types of composition or mixtures of the two. Organic antifoams are of synthetic origin. Silicone-based antifoams are generally considered to be siloxane polymers and are also synthetic.

3D Cell Culture with Corning Microplates

Take a deep dive into the world of 3D cell culture courtesy of Corning and understand why the Corning® spheroid microplate can be an asset in the evolution of 3D cell culture.

The following procedure has been evaluated with Ficoll-Paque PLUS and is recommended for separation of normal blood samples for maximum reproducibility.

Delivery of Nucleic Acids Using Polymers

MISSION™ CRISPRa Synergistic Activation Mediator (SAM)

MILLIPLEX® Multiplex Assays for COVID-19 (SARS-CoV-2) Research Applications

MILLIPLEX® multiplex assays help to better understand the immune response to COVID-19 (SARS-CoV-2), including cytokine storm. Our MILLIPLEX® multiplex immunoassays offer researchers the ability to simultaneously quantitate a large number of analytes critical to understanding the immune response in humans.

Poly(ethylene glycol) (PEG) and Synthetic PEG Derivatives for Tissue Engineering and Cell Delivery

Highlighting new synthetic modifications of PEG to improve the mechanical properties and degradation of resulting hydrogels in tissue engineering applications.

GPCR Markers for Cancer Research

Explore the role of some selected GPCR markers in cancer research development and treatment, including neurohormonal GPCRs, rhodopsin-like GPCRs, and more.

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