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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.

Improving Glycoform Coverage for Mucin Prep

Human Protein Atlas uses A-431, U-251 MG, and U-205 cell lines with Prestige Antibodies for organelle mapping.

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.

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.

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.

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.

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.

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

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.

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.

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.

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.

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.

Authenticated Breast Cancer Cell Lines for Cancer Research

Choose from more than 30 breast cancer cell lines authenticated by ECACC, classified by hormone receptor-positive, HER2-positive, and triple-negative cancers, as well as by known mutations such as BRCA2.

Alkaline Phosphatase

We offer a broad range of alkaline phosphatase enzymes and substrates that are optimized for conjugation to antibodies and other proteins for your specific application needs.

Synthesis of Melting Gels Using Mono-Substituted and Di-Substituted Alkoxysiloxanes

Chemistry at Surfaces with Self-Assembled Monolayers and SAMDI-ToF Mass Spectrometry

Carcinogenesis and Epigenetics

Cancer research has revealed that the classical model of carcinogenesis, a three step process consisting of initiation, promotion, and progression, is not complete.

Achieving High Efficiency in Organic Light-Emitting Devices

Electroluminescence of organic molecules has been a wellknown phenomenon for more than 50 years.

Tips & Tricks for Thin-Layer Chromatography

Thin Layer Chromatography Troubleshooting: This article details TLC tips and tricks that one must consider while performing different steps of the technique.

Delivery of Nucleic Acids Using Polymers

Peptide Modifications: N-Terminal, Internal, and C-Terminal

Progress for High Performance Tandem Organic Solar Cells

Professor Chen (Nankai University, China) and his team explain the strategies behind their recent record-breaking organic solar cells, reaching a power conversion efficiency of 17.3%.

Frost Group – Professor Product Portal

The Frost group has a longstanding interest in aqueous phase organometallic chemistry with an emphasis on water-soluble phosphine ligands. One focus of this research group has been centered on the chemistry of the neutral, air stable, and water-soluble heterocyclic phosphine

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.

Boron Nitride Nanotubes

Boron nitride nanotubes (BNNTs) are structural analogs of carbon nanotubes, with alternating boron and nitrogen atoms replacing carbon.

Ultrapure Water for Pesticides Analysis in Cannabis Testing

Explore how Milli-Q® systems deliver pesticide-free ultrapure water, ensuring accurate cannabis testing and supporting regulatory compliance.

2D MXenes Ink: Synthesis, Properties, and Their Precursors

Optimizing the synthesis of high-quality 2D MXene flakes for 3D ink printing is essential to such technological developments as printable and flexible electronics.

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