نتایج جستجو برای: drug stability

تعداد نتایج: 876098  

Resistance to aspirin and its cytotoxicity significantly limits its therapeutic applications. Nano-liposomal encapsulation of aspirin can reduce its cytotoxicity. In this study, aspirin encapsulated nano-liposomes (AS-NL) was prepared and its performance in drug delivery and cytotoxicity was evaluated. The effects of two independent variables including: number of freeze/thawing cycles and conce...

The production of biotechnological drug proteins plays an important role against disease. The process of producing drug recombinant proteins is not a direct path, because it requires a lot of work and on the other hand, one of the important and significant aspects in the production of proteins is the discussion of their stability and solubility during the expression and purification process. Pr...

2014
Zhengxi Zhu

Flash nanoprecipitation (FNP) can generate hydrophobic drug nanoparticles in ∼ 100 nm with a much higher drug loading (e.g., > 40 wt %) than traditional nanocarriers (e.g., < 20 wt %). This paper studies the effects of drug molecules on nanoparticle stability made via FNP and demonstrates that chemically bonding a drug compound (e.g., paclitaxel) with a cleavable hydrophobic moiety of organosil...

Journal: :Forensic science review 1990
B Levine M L Smith

Knowledge about the stability of drugs in biological specimens is critical to proper interpretation of test results. Literature pertaining to the stability of drugs of abuse in blood, urine, saliva, and tissue specimens is reviewed in this article. Ethanol-related information are also included as it is an abused drug and its stability in blood and urine has been the subject of many studies. Oth...

Journal: :journal of nanostructures 2012
m. oftadeh n. madadi mahani r. bahjatmanesh ardakani

linear–dendrite copolymers containing hyper branched poly(citric acid) and linear poly(ethylene glycol) blocks pca–peg–pca are promising nonmaterial to use  in nanomedicine. to investigate their potential application in biological systems (especially for drug carries) oniom2 calculations were applied to study the nature of particular interactions between drug and the polymeric nanoparticles.  b...

Journal: :pharmaceutical and biomedical research 0
ebrahim saadat department of pharmaceutics, faculty of pharmacy, mazandaran university of medical sciences, sari, iran rassoul dinarvand department of pharmaceutics, faculty of pharmacy, mazandaran university of medical sciences, sari, iran pedram ebrahimnejad department of pharmaceutics, faculty of pharmacy, mazandaran university of medical sciences, sari, iran

in this study, nystatin liposomal formulation was prepared and characterized. the physicochemical properties of formulations including vesicle size, drug entrapment stability and in vitro release were studied. the highest entrapment efficiency of nystatin into liposomes was obtained about 70% when cholesterol (cho) was added to the formulations prepared with dipalmitoylphosphatidylcholine. in a...

اکبری, جعفر, سعیدی, مجید, عنایتی فرد, رضا , محمدیان, لقمان, مرتضی سمنانی, کتایون,

Background and purpose: Solubility plays an important role in bioavailability of drugs. Any alter can cause changes in the physical and chemical properties of the drug release and consequently, changes in the bioavailability of the drug. It is necessary to recognize the best storage conditions to achieve desired drug release. Material and Methods: Carbamazepine tablets containing different ...

Introdution: Nanotechnology introduced new methods to chemotherapy drugs delivery into cancer cells to reduce the side effect of drugs it increases the quality of cancer treatment and reduces the side effects of chemotherapy. . In this study, different lipid formulations of nucliposomes containing curcumin was prepared by thin-layer method and evaluated for chemical-physical evaluation on MCF-7...

A. Ghaffari , N. Nasserifar ,

In this paper a new mathematical model is developed for the dynamics between tumor cells, normal cells, immune cells, chemotherapy drug concentration and drug toxicity. Then, the theorem of Lyapunov stability is applied to design treatment strategies for drug protocols that ensure a desired rate of tumor cell kill and push the system to the area with smaller tumor cells. Using of this theorem a...

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