نتایج جستجو برای: نانوذرات pamam
تعداد نتایج: 8240 فیلتر نتایج به سال:
Parkinson adalah penyakit neurodegeneratif yang meningkat lebih cepat daripada gangguan neurologis lainnya. Saat ini pengobatan menggunakan dopamine agonist dan levodopa, namun memiliki efek samping seperti menurunkan nafsu makan tidak berfokus pada pencegahan kematian neuron. Salah satu protein berperan dalam patogenesis dari α-synuclein, di mana agregasi misfolding bersifat toksik neuron sehi...
Gene, short hairpin RNA (shRNA) and small interfering RNA (siRNA) delivery can be particularly used for the treatment of diseases by the entry of genetic materials mammalian cells either to express new proteins or to suppress the expression of proteins, respectively. Polyamidoamine (PAMAM) StarburstTM dendrimers are used as non-viral vectors (carriers) for gene, shRNA and siRNA delivery. Recent...
The occlusion of dentinal tubules is an effective method to alleviate the symptoms caused by dentin hypersensitivity, a significant health problem in dentistry and daily life. The in situ mineralization within dentinal tubules is a promising treatment for dentin hypersensitivity as it induces the formation of mineral on the sensitive regions and occludes the dentinal tubules. This study was car...
The microencapsulation of cells has shown promise as a therapeutic vehicle for the treatment of a wide variety of diseases. While alginate microcapsules provide an ideal cell encapsulation material, polycations coatings are commonly employed to enhance stability and impart permselectivity. In this study, functionalized hyperbranched alginate and dendrimer polymers were used to generate discreet...
The application of RNA interference techniques is promising in gene therapeutic approaches, especially for cancers. To improve safety and efficiency of small interfering RNA (siRNA) delivery, a triblock dendritic nanocarrier, polyamidoamine-polyethylene glycol-cyclic RGD (PAMAM-PEG-cRGD), was developed and studied as an siRNA vector targeting the human ether-à-go-go-related gene (hERG) in human...
در نخستین بخش از این کار تحقیقاتی، سه نوع نانومواد هیبریدی به عنوان نانوکاتالیست تهیه شد. ابتدا کوپلیمر خطی- دندریتیکی نوع aba ، که در آن قطعهb شامل پلی اتیلن گلایکول، و قطعه a شامل بخش پلی آمیدوآمین است (pamam-peg-pamam) را تانسل دوم سنتز کرده، سپس یک ترکیب که دارای حلقه های آروماتیک فراوان بود را به گروه های عاملی آمین انتهایی نسل دوم کوپلیمر خطی- دندریتیکی سنتز شده و وصل شد (g2-pt) . این گرو...
زمینه و هدف: هدف از این مطالعه بررسی اثرات ضدّباکتریایی دندریمر پلیپروپیلنایمین نسل دوم (PPI-G2) و پلیآمیدوآمین نسل چهارم (PAMAM-G4) بر کلبسیلا اوکسیتوکا، سودوموناس آئروژینوزا و پروتئوس میرابیلیس در محیط آزمایشگاهی بود. مواد و روشها: غلظتهای مختلفی از دندریمر PPI-G2 و PAMAM-G4 بر روی دیسکهای بلانک تلقیح شد و در محیط کشت مولر هینتون آگار قرار داده شدند. با تلقیح باکتریها مطابق با غلظت اس...
Abstract PAMAM dendrimers modified silica gel terminated phenylphosphonic acid-amide moieties (Si-6G PAMAM-PPAAM) was prepared for uranium(VI) adsorption from aqueous solutions by batch and fixed-bed column methods. The experimental results showed that the maximum capacity 434.78 mg g −1 . Equilibrium isotherm data obeyed Langmuir model. Kinetic followed pseudo-second order model thermodynamic ...
Glutathione (GSH) depletion has been an important contributor to the dysfunction of dopamine neurons. Polyamidoamine-GSH (PAMAM-GSH) was synthesized and the delivery effect of GSH into PC12 cells was tested. MTT assessment for cytotoxicity and reactive oxygen species (ROS) as well as nitrite oxide (NO) and intracelluar superoxide dismutase (SOD) detection for antioxidative ability were performe...
A simple new competition assay for heparin binding in serum applied to multivalent PAMAM dendrimers.
We report a competition assay using our recently reported dye Mallard Blue, which allows us to identify synthetic heparin binders in competitive media, including human serum - using this we gain insight into the ability of PAMAM dendrimers to bind heparin, with the interesting result that low-generation G2-PAMAM is the preferred heparin binder.
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