A novel method to remove the background from x-ray diffraction signal.

A novel method to remove the background from x-ray diffraction signal. Phys Med Biol. 2018 Feb 02;: Authors: Zheng Y, Speller R, Griffiths J Abstract The first step that is required to extract the correct information from a two-dimensional (2D) diffraction signature is to remove the background accurately. However, direct background subtraction inevitably overcorrects the signal as it does not take into account the attenuation by the sample. Other traditional background removal methods, such as the rolling ball technique, can separate sharp diffraction peaks of crystalline materials from their background. These methods are unsuitable for biological tissue, which is amorphous and does not have sharp diffraction peaks. This technical note proposes a novel method that combines peak fitting and experimental results to estimate the background for 2D XRD signals. PMID: 29393073 [PubMed - as supplied by publisher]
Source: Physics in Medicine and Biology - Category: Physics Authors: Tags: Phys Med Biol Source Type: research

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Conclusions: Results reveals that developed nitrendipine nanoemulsion gel overcomes the limitation of low penetration and accentuate permeation through albino Wistar rat skin. It was concluded that nanoemulsion gel could be utilized as a potential carrier for transdermal delivery of nitrendipine. PMID: 31976777 [PubMed - as supplied by publisher]
Source: Drug Development and Industrial Pharmacy - Category: Drugs & Pharmacology Tags: Drug Dev Ind Pharm Source Type: research
Authors: Rezaie Shirmard L, Ghofrani M, Bahari Javan N, Bayrami S, Tavassoli A, Rezaie A, Amini M, Kebriaee-Zadeh A, Rouini MR, Dinarvand R, Rafiee-Tehrani M, Dorkoosh FA Abstract Uncontrolled distribution of nanoparticles (NPs) within the body can significantly decrease the efficiency of drug therapy and is considered among the main restrictions of NPs application. The aim of this study was to develop a depot combination delivery system (CDS) containing fingolimod loaded poly (3-hydroxybutyrate-co-3-hydroxyvalerate) (PHBV) NPs dispersed into a matrix of oleic acid-grafted-aminated alginate (OA-g-AAlg) to minimize ...
Source: Drug Development and Industrial Pharmacy - Category: Drugs & Pharmacology Tags: Drug Dev Ind Pharm Source Type: research
Authors: Yoshida T, Sako K, Kondo H Abstract High consumption of oil formulations has been reported to reduce the blood exposure of drugs like tacrolimus. Consumption of oil formulations has also been shown to inhibit T-cell production of interleukin-2 (IL-2) compared to solid dispersion formulations (SDFs). However, a large amount of oil causes gastrointestinal side effects such as diarrhea and low compliance. Here, we investigated the feasibility of reducing the amount of oil and substitution of chemically synthetized oils for natural oils in these formulations. Reducing the amount of sunflower oil increased bloo...
Source: Drug Development and Industrial Pharmacy - Category: Drugs & Pharmacology Tags: Drug Dev Ind Pharm Source Type: research
CONCLUSIONS: In conclusion, the potential for supersaturation in LBDDS, and the risk of precipitation, was found to be highly drug dependent. The apparent degree of supersaturation was considered a major factor impacting the ability to maintain drug supersaturation upon storage. PMID: 31975613 [PubMed - as supplied by publisher]
Source: Drug Development and Industrial Pharmacy - Category: Drugs & Pharmacology Tags: Drug Dev Ind Pharm Source Type: research
Authors: Mailhot Vega RB, Hoppe BS PMID: 31976780 [PubMed - as supplied by publisher]
Source: Expert Review of Hematology - Category: Hematology Tags: Expert Rev Hematol Source Type: research
With a second case of a deadly Chinese virus confirmed in the United States, and four cases under investigation in New York, Buffalo-area hospitals are on alert and preparing as best as they can. The novel coronavirus was first identified in Wuhan, China, in December. More than 850 cases have since been reported worldwide, with more than 40 deaths in China. Transportation has been shutdown with travel restricted for millions in that country as international officials work to contain the di sease. In…
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