Streptomycin is an aminoglycoside antibiotic primarily effective against gram-negative bacteria and Mycobacterium species.It is commonly used in cell culture media to prevent bacterial contamination. It has also been used to precipitate nucleic acids during protein purification techniques and to study mechanisms of Streptomycin resistance.

Aminoglycoside antibiotics are composed of amino groups attached to glycosides. They bind the 30s ribosomal subunit, causing misreading of the mRNA sequence and inhibition of translocation. Consequently, protein synthesis is inhibited. Resistance to this antibiotic is conferred through mutations in the rpsL gene.

The Streptomycin Sulfate EZ Pak™ is the fastest and easiest way to make a set amount of sterile streptomycin sulfate solution. The kit includes pre-weighed streptomycin sulfate powder, a sterile filter and a sterile container for the filtered solution. No need to calculate, simply add the stated amount of deionized H₂O, filter, and pour into the labeled bottle for easy usage. The EZ Pak™ includes high-quality GoldBio streptomycin sulfate, and the sterile solution is ready for tissue culture, bacterial media or any number of uses.

The 25 ml, 50 ml, and 100 ml require a vacuum manifold for easy vacuum filtering, while the 10 ml pack size comes with a syringe filter.

★活体技术荧光检测荧光蛋白标记适用于标记细胞、病毒、基因等，通常使用的是 GFP、EGFP、RFP（DsRed）等；荧光染料标记适用于标记抗体、多肽、小分子药物等；常用的有 Cy3、Cy5、Cy5.5 及 Cy7量子点标记（新的标记方法）适用于标记肿瘤，主要应用在活细胞实时动态荧光观察与成像；量子点（quantum dot) 是一种能发射荧光的半导体纳米微晶体，外观恰似一极小的点状物。量子点荧光比有机荧光染料的发射光强的 20 倍，稳定性强 100 倍以上，具有荧光发光光谱较窄、量子产率高、不易漂白、激发光谱宽、颜色可调，并且光化学稳定性高，不易分解等诸多优点。