Preparation of Mg/Al Layered Double Hydroxide–Oleate Intercalation Compound by a Reconstruction Method under Hydrothermal Condition

2005 ◽  
Vol 34 (6) ◽  
pp. 810-811 ◽  
Author(s):  
Makoto Ogawa ◽  
Kazuya Inomata
Keyword(s):  
Layered Double Hydroxide ◽  
Intercalation Compound ◽  
Hydrothermal Condition ◽  
Reconstruction Method ◽  
Double Hydroxide

Synthesis and Characterization of Methyl-Red/Layered Double Hydroxide (LDH) Nanocomposite

2009 ◽  
Vol 79-82 ◽  
pp. 493-496 ◽  
Author(s):  
Jian Qiang Liu ◽  
Xing Cheng Zhang ◽  
Wan Guo Hou ◽  
You Yong Dai ◽  
Hongdi Xiao ◽  
...  
Keyword(s):  
Layered Double Hydroxide ◽  
Lamellar Structure ◽  
Guest Molecule ◽  
High Thermal Stability ◽  
Reconstruction Method ◽  
Methyl Red ◽  
Element Analysis ◽  
Ft Ir ◽  
Double Hydroxide

In this paper, the intercalation of methyl-red (MR) into Mg/Al (ratio=2:1) layered double hydroxide (LDH) was carried out using reconstruction method to obtain MRLDH nanocomposite material. Its chemical composition, crystal structure and appearance were characterized by XRD, FT-IR, TEM, TG-DTA and element analysis. It has been found that the MRLDH still keeps the typical lamellar structure, and the guest MR has inserted into the layers of the host LDH. The MRLDH’s disassembly temperature is higher more than 70°C than that of guest molecule MR, so it can be used as a new dye with high thermal stability.

scholarly journals Anticancer Drug-Incorporated Layered Double Hydroxide Nanohybrids and Their Enhanced Anticancer Therapeutic Efficacy in Combination Cancer Treatment

2014 ◽  
Vol 2014 ◽  
pp. 1-11 ◽  
Author(s):  
Tae-Hyun Kim ◽  
Gyeong Jin Lee ◽  
Joo-Hee Kang ◽  
Hyoung-Jun Kim ◽  
Tae-il Kim ◽  
...  
Keyword(s):  
Combination Therapy ◽  
Cancer Treatment ◽  
Layered Double Hydroxide ◽  
Anticancer Drugs ◽  
Therapeutic Efficacy ◽  
Reconstruction Method ◽  
Dependent Manner ◽  
Cellular Delivery ◽  
Potential Measurement ◽  
Double Hydroxide

Objective. Layered double hydroxide (LDH) nanoparticles have been studied as cellular delivery carriers for anionic anticancer agents. As MTX and 5-FU are clinically utilized anticancer drugs in combination therapy, we aimed to enhance the therapeutic performance with the help of LDH nanoparticles.Method. Anticancer drugs, MTX and 5-FU, and their combination, were incorporated into LDH by reconstruction method. Simply, LDHs were thermally pretreated at 400°C, and then reacted with drug solution to simultaneously form drug-incorporated LDH. Thus prepared MTX/LDH (ML), 5-FU/LDH (FL), and (MTX + 5-FU)/LDH (MFL) nanohybrids were characterized by X-ray diffractometer, scanning electron microscopy, infrared spectroscopy, thermal analysis, zeta potential measurement, dynamic light scattering, and so forth. The nanohybrids were administrated to the human cervical adenocarcinoma, HeLa cells, in concentration-dependent manner, comparing with drug itself to verify the enhanced therapeutic efficacy.Conclusion. All the nanohybrids successfully accommodated intended drug molecules in their house-of-card-like structures during reconstruction reaction. It was found that the anticancer efficacy of MFL nanohybrid was higher than other nanohybrids, free drugs, or their mixtures, which means the multidrug-incorporated LDH nanohybrids could be potential drug delivery carriers for efficient cancer treatment via combination therapy.

scholarly journals Zingiber officinale Extract (ZOE) Incorporated with Layered Double Hydroxide Hybrid through Reconstruction to Preserve Antioxidant Activity of ZOE against Ultrasound and Microwave Irradiation

Nanomaterials ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 1281 ◽  
Author(s):  
Hyoung-Jun Kim ◽  
Su-Bin Lee ◽  
Ae-Jin Choi ◽  
Jae-Min Oh
Keyword(s):  
Antioxidant Activity ◽  
Microwave Irradiation ◽  
Layered Double Hydroxide ◽  
Radical Scavenging ◽  
Zingiber Officinale ◽  
Microwave Treatment ◽  
Reconstruction Method ◽  
Potential Measurement ◽  
Double Hydroxide ◽  
Ray Patterns

We prepared Zingiber officinale extract (ZOE) incorporated in a layered double hydroxide (LDH) hybrid through a reconstruction method in order to preserve the antioxidant activity of ZOE from ultrasound and microwave irradiation. X-ray patterns, infrared spectroscopy, and scanning electron microscopy suggested that ZOE moieties were encapsulated in the interparticle space of reconstructed LDH, thus preserving its intact structure. Dynamic light scattering and zeta-potential measurement also supported the hypothesis that ZOE moieties were located in the interparticle pore of LDH rather than at the surface of LDH particles. Thermogravimetry analysis revealed that thermal stability of encapsulated ZOE could be enhanced by LDH encapsulation. Radical scavenging assay showed that antioxidant activity of ZOE–LDH hybrid was increased after ultrasound and microwave irradiation, while ZOE itself dramatically lost its antioxidant activity upon ultrasound and microwave treatment.

Preparation of a Layered Double Hydroxide–Porphyrin Intercalation Compound

1989 ◽  
Vol 18 (11) ◽  
pp. 2057-2058 ◽  
Author(s):  
In Yong Park ◽  
Kazuyuki Kuroda ◽  
Chuzo Kato
Keyword(s):  
Layered Double Hydroxide ◽  
Intercalation Compound ◽  
Double Hydroxide
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