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DiagPoly™ Plain Fluorescent Polystyrene Particles, Red, 500 nm are monodispersed fluorescent polystyrene beads(PDI < 0.08, likely around 0.03) using rhodamine B (CAS # 81-88-9, Ex/Em=552/582 nm). Ex/Em=552/578 nm. Supplied 1ml at 1% solid dispersed in 0.1% Tween 20 in DI water containing 2mM NaN3.

Antimicrobial Susceptibility Testing Antimicrobial susceptibility test is an experimental method to detect the sensitivity of test bacteria to antimicrobial drugs. Antimicrobial susceptibility test is mainly used to detect whether antimicrobial drugs have an inhibitory effect on pathogenic microorganisms in vitro. And then this can be used clinically to guide the selection of therapeutic drugs and to understand the changes in the resistance of common pathogens in the region. Knowledge of antibiotics that are sensitive to bacteria can transform the choice of antibiotics from empirical therapy to targeted therapy.

Psychedelic, acid,tap, weed and shroom

Cell Structure Imaging Analysis Cell is the smallest unit of organism, which mainly includes cell membrane, cytoplasm, Golgi apparatus, ribosome, lysosome and so on. The structure of the cell is complex and exquisite and the various structures are coordinated with each other, so that life activities can be self-regulated and carried out in a highly orderly manner in a changing environment. Biomedicine and drug research usually rely on the quantitative analysis of cell structure, and live cell imaging is an effective method for cell structure analysis.

CD BioSciences is a biotechnology company with a high-resolution 3D bioprinting technology platform dedicated to providing bioink products and its customization services. CD BioSciences can offer the following two types of protein-based 3D bioprinting bioinks for you to choose from. Collagen is the most abundant and widely distributed functional protein in mammals, accounting for 25 % to 30 % of total protein. Collagen is a natural protein of the muscle, which has greater affinity for protein molecules on the skin surface, weaker antigenicity, good biocompatibility and biodegradation safety. Therefore collagen has gained wide application in food, medicine, tissue engineering, cosmetics and other fields. Fibronectin is a large extracellular membrane protein found on the surface of many animal cells and is the major non-collagenous glycoprotein in the extracellular matrix and basement membrane. It plays a central role in cell adhesion and regulates cell polarity, differentiation and growth. As a matrix factor with important biological functions, fibronectin plays an important role in all stages of trauma repair.

Lead and Nickel Sulfide Screen Testing is crucial in the metallurgical industry for identifying and quantifying the presence of these sulfides in various materials. These elements can significantly impact the properties and usability of metals, affecting their strength, malleability, and resistance to corrosion. Precise detection and analysis of lead and nickel sulfides are essential for ensuring the quality and performance of metal products. STEMart will employ cutting-edge techniques to provide accurate and reliable testing services, supporting industries in maintaining high standards for their products. Our Pb and NiS collection screen testing services are designed to detect these elements with precision, employing advanced analytical methodologies.

Bullion and dore bars represent pivotal assets in the precious metals market, serving as key indicators of value and purity in the global trade of gold and silver. Bullion bars, recognized for their high purity, play a crucial role in financial markets, investment portfolios, and central banks' reserves. Dore bars, often produced directly from mining operations, contain gold and silver in less refined forms, necessitating precise analysis to determine their true worth. STEMart is specialized in the meticulous testing of these materials, employing cutting-edge technologies and methodologies to ensure accurate assessment. Our Bullion and Dore Testing Services are essential for stakeholders across the precious metals ecosystem, including miners, traders, and refineries, providing them with the confidence needed to navigate this complex market.

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DiagPoly™ Carboxyl Fluorescent Polystyrene Particles, Red, 2 μm (# DCFR-L111) are encapsulated with red fluorophores (excitation: 545 nm, emission: 566 nm) and functionalized with carboxyl groups (COOH) on the surface for the covalent attachment of proteins, peptides and nucleic acids. The density of liquid suspension is 1.05-1.06 g/mL. Sonicate/Vortex the microspheres before each use.