Collagen functionalized graphene sheets decorated with in situ synthesized nano hydroxyapatite electrospun into fibers

Yadav, Balram Singh; Sahu, Ranjan K.; Pramanick, A K; Mishra, Trilochan; Alam, A K M Mashud; Bharti, Manjubala; Mukherjee, Sneha; Kumar, Sharad; Nayar, Suprabha

doi:10.1016/j.mtcomm.2018.11.005

Cited by 15 publications

(6 citation statements)

References 31 publications

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“…The porosity content of coating reinforced with 7 wt.% GNS is also close to the sample, but its coating thickness is thinner than the nHA/7GNS wt.% sample. This proves that the coating density increases considerably and, the desired high roughness and porosity ratio on the surface is maintained [ 25 ]. Thus, it can be concluded that the porosity increasing is not related to only the GNS additive, it can be also linked with large diameter nHA agglomerates formed on the coating surface.…”

Section: Resultsmentioning

confidence: 96%

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Hydrothermal synthesis of nanocrystalline hydroxyapatite–graphene nanosheet on Ti-6Al-7Nb: mechanical and in vitro corrosion performance

Yiğit

Dikici

Özdemir

2021

J Mater Sci: Mater Med

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The hybrid coatings containing the graphene nano-sheet (GNS) and nano-hydroxyapatite (nHA) phases have been successfully synthesized on Ti6Al7Nb alloys by a one-step hydrothermal method. The hydrothermal reaction was carried out for 24 h at 200 °C. The GNS ratio has been altered as 1, 3, 5 and 7 wt.% in the coatings and, the results have compared with non- GNS containing coatings. The effect of the GNS ratio on the microstructure, hardness, and in vitro corrosion responses has been investigated in detail. The characterizations of the coatings were carried out by SEM, EDS, AFM, XRD and, FTIR. The corrosion behavior of the hybrid coatings was compared in Kokubo’s solution at 37 °C by using potentiodynamic polarization tests. The results showed that the hydroxyapatite phases were deposed on the graphene layers with nano-size nucleation with its Ca/P stoichiometric ratio. The best hydrophilicity (~52°) property has been obtained in nHA/3GNS coatings. In addition, the corrosion rates of coatings increased in the following order: nHA/3GNS < nHA/1GNS < nHA/7GNS < nHA/5GNS < only nHA.

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Section: Resultsmentioning

confidence: 96%

“…By the way, the HA powders can be added to two different sizes as micro and nano in the coating structures. Nowadays, the nanoscale usage of HA is very popular in research studies [ 22 – 25 ]. Nano-size hydroxyapatite (nHA) exhibits high fracture toughness, improved mechanical properties and has a large surface area.…”

Section: Introductionmentioning

confidence: 99%

Hydrothermal synthesis of nanocrystalline hydroxyapatite–graphene nanosheet on Ti-6Al-7Nb: mechanical and in vitro corrosion performance

Yiğit

Dikici

Özdemir

2021

J Mater Sci: Mater Med

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“…3(a,b), respectively. In both FTIR spectra, the bands at around 3469 and 1634 cm −1 were assigned to the stretching vibration of surface‐adsorbed water molecules and bending vibration of the OH bond, 24 respectively. The band at around 1381 cm −1 was ascribed to the stretching vibration mode of nitrate anions that were intercalated into the interlayer position of the layer structure 25 .…”

Section: Resultsmentioning

confidence: 99%

Optimization of parameters for adsorption of acid yellow 36 dye onto nitrate‐intercalated MgAl LDH nanoparticle using Box–Behnken design

Yadav

Durgawati

Dasgupta

2023

J of Chemical Tech & Biotech

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BACKGROUND: Layered double hydroxide nanoparticles have been extensively investigated and exploited for the removal of harmful anions from contaminated water. For adsorption of acid yellow dye (AY) from contaminated water, nitrate-intercalated MgAl layered double hydroxide (LDH) nanoparticles were synthesized using the co-precipitation method with the refluxing condition in a nitrogen atmosphere.RESULTS: The X-ray diffraction pattern of LDH nanoparticles showed that LDH nanopowder with nitrate in the interlayer position was successfully synthesized. The shift in (003) basal plane diffraction peak to a lower angle (2θ) of 7.75°in the LDH-AY from 10.40°in the pristine LDH confirmed the intercalation of AY in the interlayer space of LDH. Variable factors for the adsorption of the AY on the LDH nanoparticles were examined in the batch process using ultraviolet-visible spectroscopy and those included the adsorbent dose (5-30 mg), the incubation time (3-60 min), the temperature (25-50 °C), the pH of the AY aqueous suspension (5-9) and the AY concentration (0.03-0.1 mg mL −1 ). Box-Behnken design was used to optimize the three independent variables of temperature, incubation time and pH of AY solution for the adsorption of the dye. The optimized values of the incubation time, temperature and pH were found to be 25.89 min, 35.99 °C and 5.16, respectively. A maximum adsorption rate of 0.00515 g mg −1 min −1 of AY onto LDH nanoparticles was found at a solution pH of 5 and a temperature of 50 °C. The adsorption kinetics of the AY at different suspension pH values and temperature followed a pseudo-second-order kinetic model. Furthermore, an adsorption isotherm study for the adsorption of AY at a temperature of 40 °C and pH 5 followed a Langmuir isotherm model, and the maximum adsorption capacity of the AY was calculated to be 412.55 mg g −1 with excellent regeneration capacity.CONCLUSION: The study revealed that the synthesized nitrate intercalated Mg Al LDH nanoparticles using the reflux conditions offered promising potential to adsorb acid yellow 36 dye form its aqueous solution.

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“…GO can be also biofunctionalized by peptide, chitosan, or collagen to improve the mineralization process. In this case, the in situ method can be also used for the synthesis of hydroxyapatite on colloidal collagen-graphene composites [ 201 , 202 ]. Yadav et al [ 201 ] revealed the coexistence of both graphene (G) and HAp in the lattice and, moreover, demonstrated an interaction between exfoliated graphene, collagen, and hydroxyapatite through pyridinic N-oxide moiety.…”

Section: Conjugates For Drug Deliverymentioning

confidence: 99%

“…In this case, the in situ method can be also used for the synthesis of hydroxyapatite on colloidal collagen-graphene composites [ 201 , 202 ]. Yadav et al [ 201 ] revealed the coexistence of both graphene (G) and HAp in the lattice and, moreover, demonstrated an interaction between exfoliated graphene, collagen, and hydroxyapatite through pyridinic N-oxide moiety. All other characterizations lead to the conclusion that the more the graphene content (1–3 layers), the better the composites’ properties in the view of in vitro antibacterial tests, the sensitivities of the microorganism species, and the stability studies in SBF.…”

Section: Conjugates For Drug Deliverymentioning

confidence: 99%

Review of the Applications of Biomedical Compositions Containing Hydroxyapatite and Collagen Modified by Bioactive Components

et al. 2021

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Regenerative medicine is becoming a rapidly evolving technique in today’s biomedical progress scenario. Scientists around the world suggest the use of naturally synthesized biomaterials to repair and heal damaged cells. Hydroxyapatite (HAp) has the potential to replace drugs in biomedical engineering and regenerative drugs. HAp is easily biodegradable, biocompatible, and correlated with macromolecules, which facilitates their incorporation into inorganic materials. This review article provides extensive knowledge on HAp and collagen-containing compositions modified with drugs, bioactive components, metals, and selected nanoparticles. Such compositions consisting of HAp and collagen modified with various additives are used in a variety of biomedical applications such as bone tissue engineering, vascular transplantation, cartilage, and other implantable biomedical devices.

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Collagen functionalized graphene sheets decorated with in situ synthesized nano hydroxyapatite electrospun into fibers

Cited by 15 publications

References 31 publications

Hydrothermal synthesis of nanocrystalline hydroxyapatite–graphene nanosheet on Ti-6Al-7Nb: mechanical and in vitro corrosion performance

Hydrothermal synthesis of nanocrystalline hydroxyapatite–graphene nanosheet on Ti-6Al-7Nb: mechanical and in vitro corrosion performance

Optimization of parameters for adsorption of acid yellow 36 dye onto nitrate‐intercalated MgAl LDH nanoparticle using Box–Behnken design

Review of the Applications of Biomedical Compositions Containing Hydroxyapatite and Collagen Modified by Bioactive Components

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