scholarly journals Synthesis and Application of Magnetic@Layered Double Hydroxide Multicore-Shell Nanostructure as a Novel Anti-Inflammatory Drugs Nanocarrier

2020 ◽  
Author(s):  
Vahid Yousefi ◽  
Vahideh Tarhriz ◽  
Shirin Eyvazi ◽  
Azita Dilmaghani
Keyword(s):  
Layered Double Hydroxide ◽  
Water Solubility ◽  
Chemical Properties ◽  
Basal Spacing ◽  
Magnetic Nanospheres ◽  
Inflammatory Drugs ◽  
Anti Inflammatory ◽  
Double Hydroxide ◽  
Physical And Chemical

Abstract Background: magnetic nanocomposites with a core-shell nanostructure has huge applications in different sciences especially in the release of the drugs, because of their exclusive physical and chemical properties. In this research, magnetic@layered double hydroxide multicore@shell nanostructure was synthesized by the facile experimentand is used as novel drug nanocarrier.Methods: Magnetic nanospheres were synthesized by a facile one-step solvothermal route, and in following, layered double hydroxide nanoflakes were prepared on the magnetic nanospheres by coprecipitation experiment. The synthesized nanostructures were characterized by FTIR, XRD, SEM, VSM and TEM, respectively. After intercalation with Ibuprofen and Diclofenac as the anti-inflammatory drugs by using exchange anion experiment, the basal spacing of synthesized layered double hydroxides were compared with brucite nanosheets from 0.48 nm to 2.62 nm and 2.22 nm, respectively. Results: The results indicated Ibuprofen and Diclofenac were successfully intercalated into the interlay space of LDHs by bridging bidentate interaction. Besides, in vitro drug release experiments in pH 7.4, Phosphate-buffered saline (abbreviated PBS) showed the constant release profiles with Ibuprofen and diclofenac as model drugs with different lipophilicity and water solubility and size and steric effect. Conclusions: The Fe3O4@LDH-ibuprofen and Fe3O4@LDH-diclofenac had the advantage of the strong interaction between the carboxyl groups with higher trivalent cations by bridging bidentate, clarity and high thermal stability. We confirm, which Fe3O4@LDH multicore-shell nanostructure will have potential application for constant drug delivery.

scholarly journals Synthesis and Application of Magnetic@layered Double Hydroxide as an Anti-Inflammatory Drugs Nanocarrier

2020 ◽  
Author(s):  
Vahid Yousefi ◽  
Vahideh Tarhriz ◽  
Shirin Eyvazi ◽  
Azita Dilmaghani
Keyword(s):  
Layered Double Hydroxide ◽  
Water Solubility ◽  
Chemical Properties ◽  
Basal Spacing ◽  
Magnetic Nanospheres ◽  
Inflammatory Drugs ◽  
Anti Inflammatory ◽  
Double Hydroxide ◽  
Physical And Chemical

Abstract Background: Magnetic nanocomposites with a core-shell nanostructure have huge applications in different sciences especially in the release of the drugs, because of their exclusive physical and chemical properties. In this research, magnetic@layered double hydroxide multicore@shell nanostructure was synthesized by the facile experiment and is used as novel drug nanocarrier.Methods: Magnetic nanospheres were synthesized by a facile one-step solvothermal route, and then, layered double hydroxide nanoflakes were prepared on the magnetic nanospheres by coprecipitation experiment. The synthesized nanostructures were characterized by FTIR, XRD, SEM, VSM, and TEM, respectively. After intercalation with Ibuprofen and Diclofenac as anti-inflammatory drugs and using exchange anion experiment, the basal spacing of synthesized layered double hydroxides was compared with brucite nanosheets from 0.48 nm to 2.62 nm and 2.22 nm, respectively. Results: The results indicated that Ibuprofen and Diclofenac were successfully intercalated into the interlay space of LDHs via bridging bidentate interaction. In addition, in-vitro drug release experiments in pH 7.4, phosphate-buffered saline (abbreviated PBS) showed constant release profiles with Ibuprofen and Diclofenac as model drugs with different lipophilicity, water solubility, size, and steric effect. Conclusion: The Fe3O4@LDH-ibuprofen and Fe3O4@LDH-diclofenac had the advantage of the strong interaction between the carboxyl groups with higher trivalent cations by bridging bidentate, clarity, and high thermal stability. It is confirmed that Fe3O4@LDH multicore-shell nanostructure may have potential application for constant drug delivery.

scholarly journals Synthesis and application of magnetic@layered double hydroxide as an anti-inflammatory drugs nanocarrier

2020 ◽  
Vol 18 (1) ◽  
Author(s):  
Vahid Yousefi ◽  
Vahideh Tarhriz ◽  
Shirin Eyvazi ◽  
Azita Dilmaghani
Keyword(s):  
Layered Double Hydroxide ◽  
Water Solubility ◽  
Chemical Properties ◽  
Basal Spacing ◽  
Magnetic Nanospheres ◽  
Inflammatory Drugs ◽  
Anti Inflammatory ◽  
Double Hydroxide ◽  
Physical And Chemical

Abstract Background Magnetic nanocomposites with a core–shell nanostructure have huge applications in different sciences especially in the release of the drugs, because of their exclusive physical and chemical properties. In this research, magnetic@layered double hydroxide multicore@shell nanostructure was synthesized by the facile experiment and is used as novel drug nanocarrier. Methods Magnetic nanospheres were synthesized by a facile one-step solvothermal route, and then, layered double hydroxide nanoflakes were prepared on the magnetic nanospheres by coprecipitation experiment. The synthesized nanostructures were characterized by FTIR, XRD, SEM, VSM, and TEM, respectively. After intercalation with Ibuprofen and Diclofenac as anti-inflammatory drugs and using exchange anion experiment, the basal spacing of synthesized layered double hydroxides was compared with brucite nanosheets from 0.48 nm to 2.62 nm and 2.22 nm, respectively. Results The results indicated that Ibuprofen and Diclofenac were successfully intercalated into the interlay space of LDHs via bridging bidentate interaction. In addition, in-vitro drug release experiments in pH 7.4, phosphate-buffered saline (PBS) showed constant release profiles with Ibuprofen and Diclofenac as model drugs with different lipophilicity, water solubility, size, and steric effect. Conclusion The Fe3O4@LDH-ibuprofen and Fe3O4@LDH-diclofenac had the advantage of the strong interaction between the carboxyl groups with higher trivalent cations by bridging bidentate, clarity, and high thermal stability. It is confirmed that Fe3O4@LDH multicore-shell nanostructure may have potential application for constant drug delivery.

The Effect of Zinc to Aluminium Molar Ratio on the Physico-Chemical Properties of Zinc-Aluminium-3,4-Dichlorophenoxy Acetate Nanocomposite

2013 ◽  
Vol 756 ◽  
pp. 127-134
Author(s):  
Sheikh Ahmad Izaddin Sheikh Mohd Ghazali ◽  
Mohd Zobir Hussein ◽  
Siti Halimah Sarijo
Keyword(s):  
Layered Double Hydroxide ◽  
Mole Fraction ◽  
Self Assembly ◽  
Chemical Properties ◽  
Zinc Ion ◽  
Molar Ratio ◽  
Basal Spacing ◽  
Molar Ratios ◽  
Assembly Method ◽  
Double Hydroxide

Layered double hydroxide (LDH) hybrid materials of Zn-Al-layered double hydroxide-3,4-dichlorophenoxy acetate acidnanocomposites (ZADs) were prepared by direct self-assembly method. The pH of the solution was adjusted to 7.5 using 2M NaOH. Various Zn2+ to Al3+ molar ratios, R ranging from 1 to 6 were used with a fixed concentration of 3,4-D at 0.3 M. The Powder X-ray diffraction (PXRD) patterns showed the formation of well-ordered nanocomposite with the expansion of basal spacing from 8.9 Å in the Zinc-Aluminium-Layered Double Hydroxide (ZAL) to 18.7 - 22.1 Å in the resulting nanocomposites. The Fourier transform infrared (FTIR)spectra for the nanocomposites showed features for both ZAL and ZAD, showing the successful intercalation of the organic moiety into the LDH interlayer. The percentage loading of 3,4-dichlorophenoxy acetati acid(3,4-D) in LDH was found to be increased from 34.7-48.1 % (w/w), as the mole fraction of Al decreased from 0.44-0.15. This study shows that the mole fraction of zinc ion was replaced by aluminium ion in the LDH plays an important role in controlling the physic-chemical properties of the resulting material.

scholarly journals Modulation of Inflammatory Mediators by Polymeric Nanoparticles Loaded with Anti-Inflammatory Drugs

Pharmaceutics ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 290
Author(s):  
Gloria María Pontes-Quero ◽  
Lorena Benito-Garzón ◽  
Juan Pérez Cano ◽  
María Rosa Aguilar ◽  
Blanca Vázquez-Lasa
Keyword(s):  
Inflammatory Mediators ◽  
Water Solubility ◽  
Articular Chondrocytes ◽  
Surface Charges ◽  
Raw264.7 Macrophages ◽  
Drug Concentrations ◽  
Wide Range ◽  
Inflammatory Drugs ◽  
Anti Inflammatory

The first-line treatment of osteoarthritis is based on anti-inflammatory drugs, the most currently used being nonsteroidal anti-inflammatory drugs, selective cyclooxygenase 2 (COX-2) inhibitors and corticoids. Most of them present cytotoxicity and low bioavailability in physiological conditions, making necessary the administration of high drug concentrations causing several side effects. The goal of this work was to encapsulate three hydrophobic anti-inflammatory drugs of different natures (celecoxib, tenoxicam and dexamethasone) into core-shell terpolymer nanoparticles with potential applications in osteoarthritis. Nanoparticles presented hydrodynamic diameters between 110 and 130 nm and almost neutral surface charges (between −1 and −5 mV). Encapsulation efficiencies were highly dependent on the loaded drug and its water solubility, having higher values for celecoxib (39–72%) followed by tenoxicam (20–24%) and dexamethasone (14–26%). Nanoencapsulation reduced celecoxib and dexamethasone cytotoxicity in human articular chondrocytes and murine RAW264.7 macrophages. Moreover, the three loaded systems did not show cytotoxic effects in a wide range of concentrations. Celecoxib and dexamethasone-loaded nanoparticles reduced the release of different inflammatory mediators (NO, TNF-α, IL-1β, IL-6, PGE2 and IL-10) by lipopolysaccharide (LPS)-stimulated RAW264.7. Tenoxicam-loaded nanoparticles reduced NO and PGE2 production, although an overexpression of IL-1β, IL-6 and IL-10 was observed. Finally, all nanoparticles proved to be biocompatible in a subcutaneous injection model in rats. These findings suggest that these loaded nanoparticles could be suitable candidates for the treatment of inflammatory processes associated with osteoarthritis due to their demonstrated in vitro activity as regulators of inflammatory mediator production.

scholarly journals Synthesis, characterization and pharmacological investigation of lysine and glycine conjugated amide prodrugs of (+)-ibuprofen

2020 ◽  
Vol 11 (3) ◽  
pp. 5022-5030
Author(s):  
Nija B ◽  
Arun Rasheed ◽  
Kottaimuthu A
Keyword(s):  
Chemical Properties ◽  
Brain Targeting ◽  
Ulcer Formation ◽  
Brain Distribution ◽  
Distribution Profile ◽  
Racemic Form ◽  
Inflammatory Drugs ◽  
Anti Inflammatory ◽  
Pharmacologically Active ◽  
Physical And Chemical

(+)-ibuprofen [(+)-IBN] is a Non-steroidal anti inflammatory drug (NSAIDs) that is pharmacologically active stereoisomer of racemic form of ibuprofen. Literature showed that Non-steroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen, naproxen and flubiprofen, are widely provide the protective effect against the neurodegenerative conditions. But the therapeutic application of NSAIDs in the CNS disorders were limited due to their limited brain distribution across the physiological barrier, blood brain barrier (BBB).BBB is composed of tightly connected endothelial cells of brain capillaries and the surrounding astrocytes and pericytes. The compounds which are able to cross the BBB by passive diffusion are small, lipophilic and uncharged at physiological PH. This study make an attempt to synthesize the derivatives (+)-IBN by conjugating with amino acids such as glycine and lysine that produced the two amide prodrugs,(+)-IBN-G and (+)-IBN-L. The objectives of this study are to synthesize the amide prodrugs of (+)-IBN with glycine and lysine produced (+)-IBN-G, (+)-IBN-L respectively and to perform detailed study on their physical and chemical properties, distribution profile in the brain, brain targeting efficiency parameters, pharmacological activities. The compounds synthesized will act as prodrugs of (+)-IBN and after the administration the (+)-IBN was released at the desired site by enzymatic or non-enzymatic hydrolysis and synthesized prodrugs showed the enhanced brain distribution , protective against neurodegeneration, enhanced anti inflammatory activity, reduction in the gastric side effect such as ulcer formation in the stomach.

Sign in / Sign up

Export Citation Format

Share Document