Posted by admin on May 31, 2020 in |
The aim of the present work is to determine the feasibility of peracetic acid (PAA) and the coexistent hydrogen peroxide (HP) simultaneous quantitative determination in disinfectant solution by voltammetry using carbositall rotation electrode (CE) as indicating electrode. It has been experimentally proved that the optimum pH for analysis is approximately 3.6. The linear relationship has been observed in the PAA concentration range (3.12–12.50)´10–5 mol L–1, the calibration curve equation was Iр = (3.78 ± 0.46)´103с (r = 0.995); in the HP concentration range of (0.94–3.76)´10–4 mol L–1, the calibration curve equation was Iр = (3.57 ± 0.26)´103с + (0.11 ± 0.07) (r = 0.998). Determining PAA in the working solution with the concentrations of 6.24´10–5, 7.80´10–5 and 9.36´10–5 mol L–1 the RSDs were 0.035, 0.028 and 0.022 respectively (δ = +0.30…+0.90%), determining HP in the working solution with the concentrations of 1.88´10–4, 2.35´10–4 and 2.82´10–4 mol L–1 the RSDs were 0.028, 0.018 and 0.011 respectively (δ = –0.77…+0.92%). Determining PAA in the test solution of “Delakson” disinfectant with the concentrations of 0.1%, the RSD...
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Posted by admin on May 31, 2020 in |
Present work was aimed to determine, identify, and characterize the bioactive chemical compounds from methanolic leaves extract of Abutilon fruticosum by GC-MS analysis. Fresh disease-free leaves were collected shade dried and powdered for extraction with HPLC grade methanol. Preliminary phytochemical screening of methanolic leaves extract was performed using standard methods to determine the presence of different chemical compounds; the crude extract was subjected to GC- MS analysis for the identification of bioactive compounds. Phytochemical screening of methanolic leaves extracts revealed the presence of carbohydrates, proteins, alkaloids, phenols, flavonoids, terpenes, phytosterols, etc. Furthermore, GC MS analysis of the extract revealed the presence of 65 bioactive compounds. Some major biologically active compounds identified were Azulene (24.91%), Hexadecanoic acid (13.27%), Phytol (9.51%), Beta-sitosterol (3.19%), Lupeol (1.21%), Campesterol (0.33%) etc. These chemical compounds are biologically active and pharmacologically important. The study provides detailed information about the identification and chemical characterization of various medicinally important phytocompounds from methanolic leaves extract of this plant. Although the plant is rare and endemic to Indian Thar Desert...
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Posted by admin on May 31, 2020 in |
Doxorubicin (DOX), an anthracycline antibiotic that is highly used for cancer treatment (chemotherapy), but its chemotherapeutic application is limited due to its cardiotoxicity. The major mechanism of doxorubicin action as the free radical formation and as an inhibiter of topoisomerase II and other signaling pathways is also invoked significant consequence for the cardiomyocyte. But the years of clinical use of doxorubicin generates a need for monitoring the procedure of cardiotoxicity as well as understanding its potential. Peak plasma concentration plays a key role in causing cardiotoxicity and antineoplastic activity. There are two mechanisms, the first one is anti-tumor action, and second one is cardiotoxicity. Cardiotoxicity mechanism has several pathways 1) formation of reactive oxygen and nitrogen species 2) interaction of calcium overload 3) disturb the serum biomarker levels 4) DNA damage. These are the main pathways to cause cardiotoxicity. Some signs and symptoms are given to identify doxorubicin cardiotoxicity like echocardiographical changes, angiographic changes, and disturbance in the serum biomarkers level like GSH, LDH and CK-MB. Some drugs are...
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Posted by admin on May 31, 2020 in |
Dandruff is a well-known and global consumer problem, characterized by flaking and scaling of the scalp, with itching and irritation. Although it is not a life-threatening disease, but it is directly related to individual self-esteem, confidence, and beauty. Approximately half of the population is suffering from dandruff and expending around billions of dollars, including hospital services and counter products. Despite its frequency, much controversy remains regarding the pathogenesis of dandruff. Many studies postulated that dandruff is caused by various microbial and non–microbial factors and interaction between them, such as Malassezia fungi, sebum secretion, and individual susceptibility. But some recent researches also claimed that dandruff is not only produced by fungi but there are some bacteria that also play a significant role in accelerating dandruff. The present treatment includes antifungal agents, no doubt, they have significant results but with lots of side effects and limitations. So, there’s a need to formulate a cost-effective product that possesses anti-dandruff activity, and Zulamla (Hamdard Laboratory Patent Product) is used and is in the...
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Posted by admin on May 31, 2020 in |
Substituted triazoles have received considerable attention during the last two decades as they are endowed with a variety of biological activities and have a wide range of therapeutic properties. The present work is concerned with the synthesis of fused 1, 2, 4-triazole derivatives with the objective of discovering novel and potent anti-tubercular agents that might be devoid of harmful side effects. 1-[amino (isonicotinoyl) carbonohydrazonoyl] guanidine (I) was prepared from isoniazide and cyanoguanidine and was cyclized to 2-(3-pyridin-4-yl-1H-1,2,4-triazol-5-yl) guanidine (II) which was further converted into amino triazolo triazine derivatives (IIIa-g) by refluxing with the appropriately substituted benzaldehydes. The final compounds 10-substituted-2-(pyridin-4-yl)-6,10-dihydro-5H-pyrimido[2,d] [1,2,4] triazolo[1,5-a] [1,3,5] triazine-6-carboxylic acid (IVa-g) were obtained by refluxing different amino triazolo triazine derivatives (IIIa-g) with formaldehyde and sodium pyruvate in presence of HCl in methanolic medium. The newly synthesized compounds were screened for their antitubercular activity using a microplate alamar blue assay method and characterized on the basis of IR, 1HNMR and Mass spectral...
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