Our New Products
18Jun

XTT Cell Viability Assay

TribioScience’s XTT Cell Viability Assay Kit is a colorimetric assay to quantify the viable cells with soluble formazan dye. The formation of orange formazan is based on the reduction of yellow tetrazolium salt (XTT) under the facilitation of electron acceptors or electron coupling reagents with mitochondrial oxidoreductases that only existed in the living cells. The orange formazan dye is soluble in the liquid solution, can be directly quantified by measuring the absorbance at 450 nm wavelength. The assay can be...

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18Jun

MTT Cell Viability Assay

MTT assay is one of the most versatile and popular assays. It is based on the cleavage of the yellow tetrazolium salt MTT to purple formazan crystal by metabolic active cells. The formazan is then solubilized, and the concentration determined by optical density at 570 nm. The formazan color intensity is directly proportional to the number of living cells in the culture. The MTT Cell Viability Assay Kit provides a convenient, sensitive, quantitative, and reliable assay method for the determination of...

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16Jun

LDH Cytotoxicity Assay

Lactate dehydrogenase (LDH) is a stable cytoplasmic enzyme which is present in most cells. It is released upon damage of the cytoplasmic membrane. The measurement of LDH release is a well-accepted assay to estimate cell membrane integrity and quantify cell cytotoxicity. The Tribo™ LDH Cytotoxicity Assay Kit uses resazurin as a fluorogenic indicator for measuring the activity of LDH released from damaged cells (Scheme 1). The fluorescent signal is proportional to the number of dead cells. The kit provides an easy...

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15Jun

WST-8 or Cell Count Kit-8 (CCK-8)

TribioScience’s Cell Counting Kit-8 (CCK-8) is a colorimetric assay to quantify the viable cells, consisting of the tetrazolium salt and the electron mediator 1-mthoxyPMS. The working principle is based on dehydrogenase activity detection. The generated NADH from the reaction of dehydrogenase enzymes and the substrates oxidizes the 1-methoxyPM. The reduced 1- methoxyPMS further oxidizes the tetrazolium salt (WST-8) in the CCK-8 assay kit, forming the yellow formazan dye. The dye color can then be quantified by measuring the absorbance at...

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27May

β-Hexosaminidase Activity Assay

β-Hexosaminidase (β-N-Acetylglucosaminidase, NAGase, EC 3.2.1.52) is a lysosomal enzyme that is expressed in various tissues, including kidneys, liver, lungs, and mast cells. Elevated enzyme levels are associated with many disorders, such as TaySachs and Sandhoff disease, inflammation, abnormal immune responses. Related Products: Tribo™ Human IFN γ ELISA Kit (TBS3230)Tribo™ Tryptase Activity Assay (TBS2101)Cytochrome C Oxidase Activity Assay (TBS2115)

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21May

Featured Microbial Detection for Food Safety Products

RNA and DNA Purification TBS6009 Aspergillus Genomic DNA ExtractionTBS6025 Microbial DNA Magnetic ExtractionTBS6026 Plant DNA Magnetic Extraction Kit305-101 RNA Purification Kit qRT-PCR Gene Detection TBS4006 Reverse Transcription Reaction Kit (All-in-One)TBS4007R One-step Sybr qRT-PCRTBS4008R One-step Taqmam Probe qRT-PCRTBS42021 Aspergillus Flavus Taqman PCR DetectionTBS42022 Aspergillus Fumigatus Taqman PCR DetectionTBS42023 Aspergillus Niger Taqman PCR DetectionTBS42024 Aspergillus Terreus Taqman PCR DetectionTBS42025 4-in-One Aspergillus qPCR (Flavus, Fumigatus, Niger and Terreus)TBS42026 O157H7 E. Coli qPCR KitTBS42027 STEC qPCR KitTBS42028 Salmonella qPCR KitTBS42029 STEC and Salmonella Multiple qPCR KitTBS42031 Listeria...

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17Nov

Why Some People Are More Susceptible to SARS-CoV-2?

As COVID19 continues to rage across the US and around the world, scientists and physicians continue to be perplexed by why some younger patients with no underlying conditions succumb to SARS-CoV-2. In addition, these victims are disproportionately male. Now a research article published in Science by Bastard et al. may have provided some clues to the mystery. Bastard’s research shows that about 14% of critically ill COVID19 patients have autoantibodies against Type I interferons, namely IFN α2 and IFN ω. A...

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24Sep

New Products

SPECIAL PROMOTION: 10% Off  CAR-T Induced Cytokine ELISA Kits Fast ELISA Kits for CAR-T Human Cytokines TBS3219: Human IL-1 ß; ELISA; 1 step and 1hr TBS3220：Human IL-2 ELISA; 1 step and 1hr TBS3221: Human IL-4 ELISA; 1 step and 1hr TBS3223: Human IL-6 ELISA; 1 step and 1hr TBS3224: Human IL-7 ELISA; 1 step and 1hr TBS3225: Human IL-8 ELISA; 1 step and 1hr TBS3226: Human IL-10 ELISA; 1 step and 1hr TBS3227: Human IL-13 ELISA; 1 step and 1hr TBS3228: Human IL-17A ELISA; 1 step and 1hr TBS3229: Human IL-22 ELISA;...

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