Synthesis and magnetic properties of nanoporous Co3O4 nanoflowers

Zhang, Yuanguang; Chen, Youcun; Wang, Tao; Zhou, Jianhua; Zhao, Yinguo

doi:10.1016/j.micromeso.2008.01.011

Cited by 95 publications

(40 citation statements)

References 35 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…It is promoted by higher cellular uptake of antimicrobial agents enhancing deposition of collagen (increased level of hydroxyproline content), enzymatic interactions, regulation of matrix metalloproteinase enzyme, and pro-inflammatory factors (Shin et al 2007; Prabhu and Poulose 2012; Caley et al 2015). The cellular uptake of metal nanoparticles, in addition to the shape and size of nanoparticles, also depends (Zhang et al 2008) on the extent of binding with the cell membrane (charge difference). Zeta potential values are often used as an indication of the stability of colloidal particles.…”

Section: Discussionmentioning

confidence: 99%

Biofabrication and characterization of flavonoid-loaded Ag, Au, Au–Ag bimetallic nanoparticles using seed extract of the plant Madhuca longifolia for the enhancement in wound healing bio-efficacy

et al. 2019

View full text Add to dashboard Cite

The present communication warrants the presence of significant wound healing bio-efficacy of aq. alc. extract of the seed (49.78%) of the plant Madhuca longifolia. A family of seven flavonoid fractions have been ascertained in the seed aq. alc. extract of the target plant using LCMS-8030 analysis. In vivo wound healing parameters (wound area, wound closure, epithelization period, skin breaking strength and hydroxyproline content) have been examined in Swiss albino mice models. Statistically significant (p < 0.001) enhancement in the wound healing bio-efficacy has been effectively induced using flavonoid-loaded gold: (Mlf@AuNps), silver: (Mlf@AgNps), and Au–Ag bimetallic: (Mlf@Au–AgNps) nanoparticles. Among the biofabricated nano-biomaterials, Mlf@AgNps exhibited an exceptional enhancement in the wound healing bio-efficacy (80.33%) attaining almost to the level of reference drug Placentrex (84.02%). All the fabricated nano-biomaterials were thoroughly characterized using UV–Vis, XRD, FE-SEM, TEM, EDX, and DLS. The promising enhancement in the wound healing potential of the nano-biomaterial (Mlf@AgNps) has been explained based on the cumulative effects of biological and nanotech parameters. The bio-fabricated (Mlf@AgNps) nano-biomaterials using the plant M. longifolia have lustrous prospects for the development of complimentary herbal nanomedicine for scaling-up the wound healing bio-efficacy.Graphical abstract

show abstract

Section: Discussionmentioning

confidence: 99%

Biofabrication and characterization of flavonoid-loaded Ag, Au, Au–Ag bimetallic nanoparticles using seed extract of the plant Madhuca longifolia for the enhancement in wound healing bio-efficacy

et al. 2019

View full text Add to dashboard Cite

show abstract

“…For high surface magnetic nanomaterials various synthetic methods have been applied. Thermal treatment of the precursor obtained from reaction Co(NO 3 ) 2 Á 6H 2 O with NH 4 HCO 3 at 300 1C [3], ultrasonic-assisted route [4,5], chemical vapor deposition (CVD) using a cobalt(II) b-diketonate as precursor [6] and hydrothermal method [7] have been applied for preparation of Co 3 O 4 . Luisetto et al [8] have reported the synthesis of Co 3 O 4 using several methods such as: oxalate decomposition, surfactant-assisted precipitation, sol-gel technique and polymer combustion.…”

Section: Introductionmentioning

confidence: 99%

Preparation of Co3O4 nanoparticles by nonhydrolytic thermolysis of [Co(Pht)(H2O)]n polymers

Mohandes

Davar

Salavati‐Niasari

2010

Journal of Magnetism and Magnetic Materials

133

View full text Add to dashboard Cite

“…With increasing temperature from 3.5 K to 270 K, both of them first sharply decrease up to 25 K, and then slowly decrease. This suggests that the Co 3 O 4 NTAs have a phase transition temperature at 25 K (Néel temperature, T N ), which is close to that of Co 3 O 4 nanoparticles,19 lower than that for Co 3 O 4 nanoflowers (33 K)20 and that for the bulk Co 3 O 4 (40 K) 21. The lower T N can be attributed to the finite size and surface effect, as T N of the nanomaterials decreases with the decrease of crystal size 22…”

Section: Resultsmentioning

confidence: 92%

In Situ Generated Gas Bubble‐Directed Self‐Assembly: Synthesis, and Peculiar Magnetic and Electrochemical Properties of Vertically Aligned Arrays of High‐Density Co₃O₄ Nanotubes

Tong

Guan

Zhang

2012

Adv Funct Materials

View full text Add to dashboard Cite

A novel and versatile gas bubble induced self‐assembly technique is developed for the one‐step fabrication of vertically aligned polycrystalline Co3O4 nanotube arrays (NTAs) by the rapid thermal decomposition of Co(NO3)2·6H2O on a flat substrate. In this protocol, the in situ generation and release of gas bubbles, which can be regulated by elaborately adjusting the kinetic factors such as reaction time, decomposition temperature and pressure as well as the content of the chemically adsorbed water, play a vital role in the formation of the Co3O4 NTAs. Due to the shape anisotropy, ordered hierarchically porous structure and high surface area, the as‐obtained Co3O4 NTAs show unique magnetic properties of a low Néel temperature and a large exchange bias field, as well as an initial discharge capacity up to 1293 mAh·g−1 at 35 mA·g−1 and the retention of a charge capacity as high as 895.4 mAh·g−1 after 10 cycles. This endows them with important potential use in magnetic shielding, magnetic recording media, and lithium ion batteries, etc. Due to the simplicity of the self‐assembly method, this process is applicable to the large‐scale production of the Co3O4 NTAs, and may be extended to other materials.

show abstract

Synthesis and magnetic properties of nanoporous Co3O4 nanoflowers

Cited by 95 publications

References 35 publications

Biofabrication and characterization of flavonoid-loaded Ag, Au, Au–Ag bimetallic nanoparticles using seed extract of the plant Madhuca longifolia for the enhancement in wound healing bio-efficacy

Biofabrication and characterization of flavonoid-loaded Ag, Au, Au–Ag bimetallic nanoparticles using seed extract of the plant Madhuca longifolia for the enhancement in wound healing bio-efficacy

Preparation of Co3O4 nanoparticles by nonhydrolytic thermolysis of [Co(Pht)(H2O)]n polymers

In Situ Generated Gas Bubble‐Directed Self‐Assembly: Synthesis, and Peculiar Magnetic and Electrochemical Properties of Vertically Aligned Arrays of High‐Density Co₃O₄ Nanotubes

Contact Info

Product

Resources

About

Synthesis and magnetic properties of nanoporous Co3O4 nanoflowers

Cited by 95 publications

References 35 publications

Biofabrication and characterization of flavonoid-loaded Ag, Au, Au–Ag bimetallic nanoparticles using seed extract of the plant Madhuca longifolia for the enhancement in wound healing bio-efficacy

Biofabrication and characterization of flavonoid-loaded Ag, Au, Au–Ag bimetallic nanoparticles using seed extract of the plant Madhuca longifolia for the enhancement in wound healing bio-efficacy

Preparation of Co3O4 nanoparticles by nonhydrolytic thermolysis of [Co(Pht)(H2O)]n polymers

In Situ Generated Gas Bubble‐Directed Self‐Assembly: Synthesis, and Peculiar Magnetic and Electrochemical Properties of Vertically Aligned Arrays of High‐Density Co3O4 Nanotubes

Contact Info

Product

Resources

About

In Situ Generated Gas Bubble‐Directed Self‐Assembly: Synthesis, and Peculiar Magnetic and Electrochemical Properties of Vertically Aligned Arrays of High‐Density Co₃O₄ Nanotubes