Here’s what you need to know about pipette tips.

发布时间：2025-04-22

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　　Pipette tips are common consumables in the laboratory—such as Corning tips—which may seem unremarkable but are often overlooked. Today, we’ll take a closer look at everything you need to know about pipette tips.

　　The pipette tips we commonly use are typically made of polypropylene (PP) because it offers excellent thermal stability and hydrophobicity. Although this material is widely adopted, the purity of the raw material significantly influences the quality of the finished tips.

　　DiHEMDA and oleic acid amide (a lubricant) are common, low-cost pipette tip additives that have been shown by scientists to exert significant inhibitory effects in certain biological assays. In contrast, BRAND manufactures its pipette tips exclusively from high-purity, additive-free polypropylene—something that many inexpensive alternatives cannot match.

　　Pipette tips can be categorized into standard tips and low‑adsorption tips. These, in turn, are further divided into sterile tips and filtered tips. Sterile tips must be packaged in boxes to ensure sterility, whereas bagged tips are prone to puncture during transport and storage, potentially leading to biological contamination; thus, they generally cannot guarantee complete sterility.

　　Filter tips are commonly used in molecular biology experiments. They are typically made of polyethylene (PE) and serve to trap aerosols and certain biomolecules, thereby protecting the pipette and preventing contamination.