Types of Microcentrifuge Tubes
Centrifuge tubes are an important component of many molecular biology protocols. They are available in various sizes and materials and can be used for multiple applications.
They are typically made of polypropylene or polyethylene, which are highly thermal, mechanical, and chemical resistant. They are also autoclavable and feature secure snap-caps to prevent leakage or contamination. Contact Stellar Scientific now!
Polypropylene is an excellent material for creating products that require rigidity and strength. This versatile plastic has a high tensile strength and malleability, which can be bent into any shape without losing its structural integrity. In addition, PP is an excellent electrical insulator and can resist corrosion and chemical leakage. It also doesn’t absorb water, making it ideal for containers that must be resistant to moisture.
In addition to its versatility, polypropylene is easy to use and is relatively inexpensive. This makes it an ideal material for manufacturers to produce goods at a low cost. It can be used to make a variety of items, including bottles, containers, and tubes. It is also a popular choice for corrugated containers that can be used for transporting goods and storage.
A common use for PP is in the manufacture of medical devices. It can be used to make surgical tubing and other devices, such as catheters. It is also used to fabricate trays and other equipment. It is also a key ingredient in many cleaning solutions.
Moreover, it is known to have good mechanical properties and can withstand temperatures from -90 to 250°C. However, a number of issues must be considered when using this material in medical applications. Specifically, it must be evaluated for its impact on patient health and the environment.
These 1.5 ml microcentrifuge tubes are made from crystal clear, medical PP and autoclavable. They have a flat cap that can be opened and closed easily with one hand, and a large writing area for labelling. These tubes are suitable for storing samples and reagents, electrophoresis sampling/handling, enzyme assays, radioassays, and immumoassays. Each tube is sterile and certified RNase, DNase, DNA, and Pyrogen free. They fit into a standard Biomek FXp automated workstation.
Polyethylene
Polyethylene (or PE) is one of the most common plastics in the world. It is produced from petroleum and natural gas, and has a variety of uses. It is durable and flexible, and can be made into many different shapes and sizes. Polyethylene is also an excellent electrical insulator. It can withstand high temperatures and still remain rigid. It is often used in industrial applications, such as making containers and packaging.
When choosing a microcentrifuge tube, it is important to consider the specific requirements of your experiment. Some factors to consider include temperature sensitivity, chemical compatibility, and centrifugation speed. In addition, certain materials may interact with specific sample types and result in unwanted binding or interference.
The snap-cap design of this tube gives a firm, dependable seal and its tough virgin-polypropylene construction withstands the rugged G-forces of high-speed centrifugation. It is ideal for specimen collection, mixing, electrophoresis sampling/handling, enzyme assays, radio assays, and immunoassays. It is RNase and DNase free and non-pyrogenic.
This 1.5 ml microcentrifuge tube is manufactured from polypropylene, and it is microwave transparent and autoclavable. It has a frosted label area for specimen identification, and is marked with volume graduations of 0.1, 0.5, 1.0, and 1.5 ml. Its tight-fitting snap cap offers secure closure and syringe insertion ability.
This 1.5 mL microcentrifuge tube is made with 20% circular economy, post-consumer recycled content and is RNase, DNase, human DNA, and pyrogen free. It is suitable for use with Beckman and Eppendorf MagFuge centrifuges. The tubes are available in natural and four additional colors for color-coding. All sizes feature attached, tight-fitting Snap-Caps. This product is made in an ISO 9001 compliant facility. All instruments and names of manufacturers mentioned are trademarks of their respective companies, and are used for reference only.
Polystyrene
Polystyrene (PS) is a synthetic aromatic thermoplastic polymer that was first developed in 1839. It is one of the most important modern plastics, used for a variety of applications. Its popularity is due to its low cost, optical transparency, inertness to most reagents and biocompatibility. The production of polystyrene begins with the monomer styrene, which is refined from petroleum or natural gas.
Styrene can be made into either a solid or foam material. It is used in a wide variety of products, including insulation, packaging, and furniture. It also has excellent thermal properties, making it an ideal choice for energy efficient insulation and protective packaging. Styrene is also a popular choice for food packaging, as it can extend the shelf life of foods at a lower cost than other materials.
In its solid form, styrene is used for injection-molded eating utensils, plastic model assembly kits, and CD “jewel” cases. It is also used to produce insulation and packaging materials, as well as molded and formed items such as disposable cups and trays. Pure, solid polystyrene is colorless and has limited flexibility. It is often combined with other compounds to create plastics with unique properties. For example, oriented polystyrene (OPS) is produced by stretching extruded polystyrene film, which reduces haziness and increases stiffness.
Globe’s 12 and 15 mL microcentrifuge tubes are manufactured with premium grade polystyrene for optical clarity. They are certified RNAse, DNAse and Pyrogen free, so your samples are protected from contamination. They are available in a range of volume sizes, and feature bold etched graduations. The flat-top caps snap securely and seal tightly, and are easy to open and close. The caps have a three-ply co-extruded liner that consists of a foamed white, low-density polyethylene core sandwiched between two layers of high-density polyethylene, which improves tube stiffness.
Polycarbonate
Polycarbonate is a transparent thermoplastic polymer that is a common material for injection molding. It has a high modulus of elasticity, making it a good choice for molded parts that need to withstand high stresses. It is also resistant to UV radiation and weathering, making it a popular choice for outdoor applications. In addition, it is very resistant to abrasion, which makes it an excellent material for laboratory equipment and containers.
Globe Scientific Certified Microcentrifuge Tubes are manufactured from FDA approved resins and are RNase free, DNase free, DNA free and Pyrogen free. They are available in 0.5mL, 1.5mL and 2.0mL capacities and packaged in resealable, tamper-evident self-standing bags. The tubes are sterile and have screw-on caps. They are ideal for use in a variety of lab applications including sample storage, PCR reactions, blood culture and cell culture.
The durable autoclavable storage box is molded in polycarbonate and can be used at temperatures from -150 to 121 degC (not for use with liquid-phase nitrogen). It holds 81 x 0.2 mL or 64 x 1.5 mL microcentrifuge tubes. The numbered grid on the clear lid is keyed in one position to prevent misalignment and can be written on with a marker.
Like other plastics, it is hygroscopic and must be pre-soaked in water before use. Exposure to certain solvents, such as acetone, gasoline, toluene and benzene, will cause it to degrade over time. It is recommended to avoid direct contact with these chemicals as they can degrade the material and cause stress cracking. However, it is compatible with mineral acids, alcohols, mild soaps, petroleum oils, and some silicone oils and greases. It is also heat-resistant and can be steam-sterilized, and it can withstand exposure to ethylene oxide and gamma sterilization for a limited number of cycles.
Polyvinyl Alcohol
Polyvinyl Alcohol is a water-soluble synthetic polymer that has gained popularity as a green alternative to plastic. It is a colorless and odorless substance that can be used for many applications in the production of paper, textiles, adhesives, and coatings. It is also a common ingredient in photographic films. Although it is not considered a toxic substance, it should be stored properly to avoid unwanted effects.
It is prepared from the hydrolysis of polyvinyl acetate or any vinyl ester derived polymer belonging to the formate or chloroacetate group. PVA has excellent film-forming, emulsifying and adhesive properties, as well as high resistance to oil, grease and solvents. It is also highly resistant to humidity.
Moreover, PVA is biodegradable and environmentally friendly. It is a popular material for making food packaging. It is also used in a variety of medical applications, including transdermal patches and the preparation of jellies that dry quickly on contact with the skin. It is also found in ophthalmic solutions, as well as in immediate and sustained release tablet formulations.
To investigate the surface characteristics of PVA, a XPS spectrometer was used to measure the chemical composition of PVA films. The samples were hydrated, and their surfaces were dabbed dry prior to testing. Unpatterned (UP) and two other topographies – 2 mm line width x 1 mm height gratings and 1.8 mm diameter x 2 mm pitch concave microlenses grafts – were plasma treated for comparison.
The XPS results showed that the plasma treatment significantly increased the ratio of the C-O peak to the C-C/C-H peak. However, the peaks overlap, so it was difficult to distinguish them using the XPS measurements. The nitrogen species present on the PVA were amine functional groups, and the peaks on days 30 and 77 remained at similar levels to those observed on day 0. These observations suggest that a change in the surface chemical composition of the grafts did not occur during storage.