Ultrasonic-assisted synthesis and characterization of layered double hydroxides intercalated with bioactive N,N′-(pyromellitoyl)-bis-l-α-amino acids

Mallakpour, Shadpour; Dinari, Mohammad; Behranvand, Vajiheh

doi:10.1039/c3ra43645d

Cited by 52 publications

(33 citation statements)

References 32 publications

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“…In comparison to LDH-CO 3 2-, residual mass percent of the diacidintercalated LDH was decreased. Also, the presence of a larger mass loss step within 250-350°C for LDHdicarboxylate anion compared to the LDH, confirmed the presence of interlayer surfactant anions in LDH because the presence of organic groups in the interlayer of MLDH reduced the thermal stability of the hybrid compounds [22]. …”

Section: Thermal Propertiesmentioning

confidence: 73%

“…Figure 2 N [17,22,36,37]. The broad band in the range 3,200-3,700 cm -1 is due to the O-H stretching vibration of the metal hydroxide layer and interlayer water molecules.…”

Section: Ft-ir Spectroscopymentioning

confidence: 97%

“…The sharp bands around 780, 554, and 440-450 cm -1 are caused by various lattice vibrations associated with metal hydroxide sheets (Fig. 2) [17,22,36,37]. The FT-IR spectra of LDH show two types of bands: one corresponding to the anionic species intercalated and other corresponding to the host LDH materials (Fig.…”

Section: Ft-ir Spectroscopymentioning

confidence: 98%

“…Different types of carboxylate anions, with one or two carboxylic functional groups and with aliphatic or aromatic hydrocarbon chains, have been intercalated. These materials have a number of interesting properties and potential applications [13,[21][22][23]. In addition, several studies have been carried out to gain information about the structure of the interlayer region where carboxylate anions are inserted [23][24][25].…”

Section: Introductionmentioning

confidence: 99%

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Intercalation of amino acid containing chiral dicarboxylic acid between Mg–Al layered double hydroxide

Mallakpour

Dinari

2014

J Therm Anal Calorim

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Layered double hydroxide (LDH) is a class of ionic lamellar solids with positively charged layers with two types of metallic cations and exchangeable hydrated gallery anions. The intercalation of organic anions, namely N,N 0 -(pyromellitoyl)-bis-L-a-amino acids diacid, into MgAl LDHs was studied for the first time. Chiral diacid monomers were synthesized in high yield from the reaction between pyromellitic dianhydride and different natural amino acids (L-isoleucine, S-valine, L-leucine, and L-phenylalanine) in refluxed acetic acid. The anion exchange appeared to be the most effective method; all examined organic anions were intercalated successfully by this way in Mg-Al host structures. The structures of supramolecular chiral materials were characterized using Fourier transform infrared spectroscopy, thermogravimetry analysis, X-ray diffraction, field emission scanning electron microscopy, and transmission electron microscopy techniques. Thermogravimetry analysis results showed that there were five mass loss steps during the thermal decomposition of the hybrid materials. These optically active pillars create a chiral environment and they could be used in chiral field.

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Section: Thermal Propertiesmentioning

confidence: 73%

“…Figure 2 N [17,22,36,37]. The broad band in the range 3,200-3,700 cm -1 is due to the O-H stretching vibration of the metal hydroxide layer and interlayer water molecules.…”

Section: Ft-ir Spectroscopymentioning

confidence: 97%

Section: Ft-ir Spectroscopymentioning

confidence: 98%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Intercalation of amino acid containing chiral dicarboxylic acid between Mg–Al layered double hydroxide

Mallakpour

Dinari

2014

J Therm Anal Calorim

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“…[41,42] According to the TGA curves of the pure NiAl-LDH and diacid modified NiAl-LDH, the weight loss occurs essentially in two steps.…”

Section: Thermal Analysismentioning

confidence: 99%

A facile and simple synthetic strategy for the preparation of modified NiAl-layered double hydroxide as nanofiller for L-phenylalanine containing poly(amide-imide)s based nanocomposites

Mallakpour

Dinari

Nabiyan

2015

Designed Monomers and Polymers

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In this article, we reported a facile and effective strategy for assembling hybrid diacid-modified NiAl-layered double hydroxide (LDH) and poly(amide-imide)/modified NiAl-LDHs nanocomposites (PAI/LDH NCs) under ultrasonic irradiation. An optically active amino acid containing PAI was prepared by direct polycondensation reaction of N,N′-(pyromellitoyl)-bis-L-phenylalanine and 4,4′-diaminodiphenylsulfone in molten tetrabutylammonium bromide. NiAl-LDH intercalated with biosafe amino acid containing dicarboxylate was synthesized in one step by co-precipitation method under ultrasonic irradiation. The materials have been characterized by X-ray diffraction, Fourier transform infrared spectroscopy, field emission scanning electron microscopy (FE-SEM), transmission electron microscopy (TEM), and thermogravimetry analysis techniques. The homogeneous dispersion of NiAl-LDH in the PAI matrices was observed by TEM and FE-SEM techniques. The results of the thermal analysis show an improvement in the thermal behavior of the PAI/LDH NCs in comparison with the neat polymer.

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Eco‐friendly synthesis of the Li/Al in nonionic surfactant‐based vesicles (niosomes) modified with graphene oxide quantum dot nanostructures for controlled released of chlorpheniramine maleate

2021

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The aim of the present work was the preparation of Li/Al nanoparticles (NPs) functionalized with graphene oxide quantum dots (GOQDs) for the controlled release of chlorpheniramine maleate (CPAM). The role of lemon and egg white extracts as oxidation agents were investigated for the morphology and particle size of the products. GOQDs were synthesized using green, environmentally friendly, and cost-effective precursors. This work demonstrates that Li/Al NPs functionalized with graphene oxide as a nanolayer structure can be used as efficient nanocarriers for loading and delivery of CPAM as water-insoluble aromatic drugs The final products were identified with X-ray diffraction, scanning electron microscopy, atomic force microscopy, ultraviolet-visible spectroscopy, dynamic light scattering, thermogravimetric analysis, and transmission electron microscopy nitrogen adsorption [i.e. Brunauer-Emmett-Teller (BET) surface area analysis] techniques. The calibration curve for Li/Al nanoparticles functionalized with GOQDs for controlled released of CPAM was calculated as y = 0.0137x + 0.0103 with R 2 = 0.9995. The data found through BET and Barrett-Joyner-Halenda analysis using the adsorption/ desorption isotherm method demonstrated by total pore volumes and dead volume were calculated respectively as 0.162 nm 2 , 0.0439 cm 3 g À1 . The mean pore diameter was calculated as 20.33 nm using BET isotherm data.

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Ultrasonic-assisted synthesis and characterization of layered double hydroxides intercalated with bioactive N,N′-(pyromellitoyl)-bis-l-α-amino acids

Cited by 52 publications

References 32 publications

Intercalation of amino acid containing chiral dicarboxylic acid between Mg–Al layered double hydroxide

Intercalation of amino acid containing chiral dicarboxylic acid between Mg–Al layered double hydroxide

A facile and simple synthetic strategy for the preparation of modified NiAl-layered double hydroxide as nanofiller for L-phenylalanine containing poly(amide-imide)s based nanocomposites

Eco‐friendly synthesis of the Li/Al in nonionic surfactant‐based vesicles (niosomes) modified with graphene oxide quantum dot nanostructures for controlled released of chlorpheniramine maleate

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