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We are a well established company, which is into business of Manufacturing, Supplying, Marketing and Exporting of All Types of Machines such as Electronic Digital Comptometers, Hand Held Librarians, Basic Laboratory Equipments and various other types of equipments.A potentiometric titration method for determining the sorption isotherms of mixed inorganic-organic organic species to resin.
To improve the estimation of sorption isotherms of mixed inorganic-organic species (MIS) in the environment, the present study proposes a novel titration method by potentiometric analysis. Sorption isotherms of MIS, which were obtained with this new method, exhibited excellent precision and agreement with those obtained using the conventional batch method. This method has several advantages. First, the sorption isotherms can be determined simultaneously with the accumulation of ions, which can reduce the measurement time of sorption by half. Second, the accumulation of ions can be minimized by keeping the MIS-saturated sediment at a constant potential. Third, the mixture of MIS can be identified easily since the characteristic potentials of the components are known.A novel peptide derived from the E7 protein of human papillomavirus type 16 inhibits tumor cell growth.
Although it is well established that the E6 and E7 proteins of high-risk human papillomaviruses (HPVs) contribute to carcinogenesis of cervical cancer, the role of E7 in the pathogenesis of HPV-associated anogenital and oropharyngeal carcinoma is still poorly understood. We have previously identified a novel tumor suppressor peptide, E7-58, derived from the E7 oncoprotein of HPV-16, which specifically inhibited HPV-16 E6/E6AP-mediated degradation of p53. In the current study, we have designed, synthesized and characterized a series of new peptides based on the E7-58 sequence. All peptides were found to be inactive in the p53 degradation assay but could inhibit the proliferation of HPV-16 E7-expressing HaCaT cells by inducing apoptosis. Interestingly, the best growth inhibitor among these peptides
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