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Showing 1-30 of 727 results for "248-170-7" within Site Content

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.

Color Determination of Sugar based on ICUMSA Color GS1-7

Learn about the ICUMSA® method GS1-7 to measure the color of sample solutions of raw sugar, brown sugar, or sugar syrups.

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.

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.

Phosgene and Phosgene Substitutes

Phosgene is 170 times more reactive than TP, the main phosgene substitute. Therefore, reactions with phosgene can be carried out under much milder conditions than with TP. Compounds will react faster and at lower temperatures (often at -78°C), preserving sensitive

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.

Poly(Amino Acid) Block Copolymers for Drug Delivery and other Biomedical Applications

Humankind has utilized protein materials throughout its existence, starting with the use of materials such as wool and silk for warmth and protection from the elements and continuing with the use of recombinant DNA techniques to synthesize proteins with unique

Intermetallic Hydrides with High Dissociation Pressure

The rates of reaction for intermetallic compounds differ significantly from those for individual metals, and therefore, intermetallic hydrides are prospective materials for hydrogen storage and distribution.

Training & Education

Pharmaceutical and biopharmaceutical manufacturers can enhance their skill sets with practical, hands-on training courses in-person or streamed live from our M Lab™ Collaboration Centers.

Delivery of Nucleic Acids Using Polymers

Hexafluoroalcohol-functionalized Methacrylate Monomers for Lithographic/nanopatterning materials

To keep pace with Moore′s Law, there is a continuing need in the semiconductor industry to achieve higher circuit density in microelectronic devices.

Biomedical Implant Devices Fabricated from Low Young’s Modulus Titanium Alloys Demonstrating High Mechanical Biocompatibility

Biomedical implants are essentially foreign substances within the human body that must survive many years’ exposure to demanding mechanical and physiological conditions. Despite these challenges, metal implants have been widely used to substitute for or rebuild hard tissues such as

Conducting Polymer Materials for Flexible OPV Applications: Orgacon™ PEDOT : PSS

A detailed article on conducting polymer materials for flexible organic photovoltaics (OPVs) applications.

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

ALiCE®Cell-Free Protein Synthesis System Protocol

Achieve high protein yields with the ALiCE® Cell-Free Protein Synthesis System that allows you to obtain “difficult to produce” proteins in a matter of hours instead of weeks.

Microbiological Control of Spices and Herbs

Microbiological assessment of bacteria found in spices, a potent source for food spoilage and pathogens.

Organic Photovoltaics in IoT, Architecture, and Wearables

Advances in OPV materials & device design; OPV technology as an energy source, enabling larger deployment of low-power, low-maintenance, & environmentally friendly hardware solutions is discussed.

PFAS Testing Methods and Guidance for Sample Filtration

Validation of Millex® PES syringe filters in PFAS testing of water samples using EPA method 537.1.

Determination of Triglycerides and Waxes in Food Products Using Cool On-Column Injection and the MET-Biodiesel Capillary Column

Chemical Synthesis of Monodisperse Magnetic Nanoparticles

Magnetic nanoparticles have attracted tremendous attention due to their novel properties and their potential applications in magnetic recording, magnetic energy storage and biomedicine.

Conjugated Polymers for the Engineering of Device/Tissue Interface

Conjugated polymers offer charge transport between inorganic, electrically conducting metals and organic, proton-conducting biological systems.

Solvent Analysis for 40 Per and Polyfluoroalkyl Substances

Trace-level PFAS analysis of solvents using SPE and LC-MS/MS to verify purity, method performance, and suitability for regulatory testing workflows.

Characterization and Performance Insights of Advanced Li-ion Cathode Materials

Analysis of high- to moderate-nickel cathode materials for lithium-ion batteries, focusing on performance, stability, and structural characteristics.

Isotopic Labeling for NMR Spectroscopy of Biological Solids

Isotopic Labeling for NMR Spectroscopy of Biological Solids;

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