Preparation of Polymer-Nanodiamond Composites with Improved Properties

Karbushev, Valeriy V.; Константинов, И. И.; Parsamyan, I. L.; Куличихин, В. Г.; Попов, В. А.; George, Thomas F.

doi:10.4028/www.scientific.net/amr.59.275

Cited by 18 publications

(4 citation statements)

References 1 publication

Supporting

Mentioning

Contrasting

Order By: Relevance

“…NDs have valuable properties which make them a suitable option for increasing mechanical properties of scaffolds in tissue engineering applications [ 8 ]. Those properties include their nanoscale size, nearly spherical shape, rich surface chemistry, excellent biocompatibility, physico-chemical properties and low cytotoxicity [ 8 , 9 , 10 , 11 ]. The interactions of NDs with different kinds of cell cultures (and some tissues) have been studied for both pure NDs and NDs with biomolecule conjugates [ 12 ].…”

Section: Nanoparticles and Coating Materials For Mechanical-propermentioning

confidence: 99%

See 1 more Smart Citation

Effect of Nanoparticle Incorporation and Surface Coating on Mechanical Properties of Bone Scaffolds: A Brief Review

Corona-Gomez

Chen

Yang

2016

JFB

View full text Add to dashboard Cite

Mechanical properties of a scaffold play an important role in its in vivo performance in bone tissue engineering, due to the fact that implanted scaffolds are typically subjected to stress including compression, tension, torsion, and shearing. Unfortunately, not all the materials used to fabricate scaffolds are strong enough to mimic native bones. Extensive research has been conducted in order to increase scaffold strength and mechanical performance by incorporating nanoparticles and/or coatings. An incredible improvement has been achieved; and some outstanding examples are the usage of nanodiamond, hydroxyapatite, bioactive glass particles, SiO2, MgO, and silver nanoparticles. This review paper aims to present the results, to summarize significant findings, and to give perspective for future work, which could be beneficial to future bone tissue engineering.

show abstract

Section: Nanoparticles and Coating Materials For Mechanical-propermentioning

confidence: 99%

“…The interactions of NDs with different kinds of cell cultures (and some tissues) have been studied for both pure NDs and NDs with biomolecule conjugates [ 12 ]. When adequately dispersed, NDs can increase the strength, toughness, and thermal stability of the nanocomposites [ 9 ].…”

Section: Nanoparticles and Coating Materials For Mechanical-propermentioning

confidence: 99%

Effect of Nanoparticle Incorporation and Surface Coating on Mechanical Properties of Bone Scaffolds: A Brief Review

Corona-Gomez

Chen

Yang

2016

JFB

View full text Add to dashboard Cite

show abstract

“…Nanoparticles were also used as fillers in dental polymeric materials to upgrade some of the mechanical properties of the nanocomposites . Similar to nanocomposites, nanodiamond powders’ (NDs) unique properties of hardness and thermal conductivity allow them a wide range of applications . ND particles are considered an effective reinforcing material to PMMA because of their strength, fine dispersion within the acrylic matrix, surface properties, and biocompatibility .…”

mentioning

confidence: 99%

Effect of Nanodiamond Addition on Flexural Strength, Impact Strength, and Surface Roughness of PMMA Denture Base

Al‐Harbi

Abdel-Halim

Gad

et al. 2018

Journal of Prosthodontics

View full text Add to dashboard Cite

Purpose To assess the effect of addition of different concentrations of nanodiamonds (NDs) on flexural strength, impact strength, and surface roughness of heat‐polymerized acrylic resin. Materials and Methods 120 specimens were fabricated from heat‐polymerized acrylic resin. They were divided into a control group of pure polymethylmethacrylate (PMMA; Major.Base.20) and three tested groups (PMMA‐ND) with 0.5%wt, 1%wt, and 1.5%wt of added ND to PMMA. Flexural strength was determined using the three‐point bending test. Impact strength was recorded by using a Charpy type impact test. Surface roughness test was performed using a Contour GT machine. One‐way ANOVA and Tukey's post‐hoc analysis (p ≤ 0.05) were used for statistical analysis. Results Acrylic resin reinforced with 0.5% ND displayed significantly higher flexural strength than the unreinforced heat‐polymerized specimens, acrylic resin reinforced with 1% ND and the 1.5% ND (p < 0.0001). The impact strength of unreinforced heat‐polymerized specimens was significantly higher than all nano‐composite materials (p < 0.0001) with no significant difference between 1% ND and the 1.5% ND (p > 0.05). The addition of 0.5% ND and 1% ND significantly decreased the surface roughness in comparison to both control and the 1.5% ND groups (p < 0.0001) while no significant differences between 0.5% ND and 1% ND (p > 0.05) were reported. Nano‐composite material (0.5% ND) showed significantly lower surface roughness when compared to other specimens. Conclusions The addition of NDs to acrylic denture base improved the flexural strength and surface roughness at low concentrations (0.5%), while the impact strength was decreased with ND addition.

show abstract

“… 16 Nanodiamond (ND) belongs to nanocarbon family and possesses distinctive properties permitting its use for dental applications. 17 18 19 ND has been tested in previous studies as filler to heat polymerized denture base resin. Al-Harbi et al 18 concluded that the impact strength of polymethylmethacrylate (PMMA) was lowered as ND increased and recommended the addition of ND in low concentrations.…”

Section: Introductionmentioning

confidence: 99%

Polymethylmethacrylate Incorporating Nanodiamonds for Denture Repair: In Vitro Study on the Mechanical Properties

et al. 2021

View full text Add to dashboard Cite

Objective This study aimed to evaluate the effect of nanodiamond (ND) addition to repair resin with repair gap modifications on the flexural and impact strength of repaired polymethylmethacrylate denture base. Materials and Methods Heat-polymerized acrylic resin specimens (N = 100/test) were prepared and sectioned to half creating two repair gaps: 2.5- and 0 mm with 45 degrees beveling. They were further divided into subgroups (n = 20) according to ND concentration (control, 0.25%ND, and 0.50%ND), thermocycling (500 cycles) was done to half the specimens in each subgroup. Flexural strength was tested using 3-point bending test and impact strength was tested by Charpy's impact test. Analysis of variance and post-hoc Tukey's tests were performed for data analysis (α = 0.05). Scanning electron microscope was employed for fracture surface analysis and ND distribution. Results Before and after thermocycling, the addition of ND significantly increased the flexural strength and elastic modulus in comparison to control group (p ˂ 0.001), while 0 mm repair gap showed insignificant difference between ND-reinforced groups (p ˃ 0.05). Regarding impact strength, ND addition increased the impact strength with 0 mm gap in comparison to control and 2.5 mm with ND (p˂0.001), while later groups showed no significant in between (p ˃ 0.05). Comparing thermocycling effect per respective concentration and repair gap, thermocycling adversely affected all tested properties except elastic modulus with 0 mm–0.25 and 0 mm–0.5% and impact strength with 2.5 mm, 2.5 mm–0.25%, 2.5 mm– 0.5% (p ˃ 0.05). Conclusion ND addition combined with decreased repair gap improved the flexural strength, elastic modulus, and impact strength of repaired denture resin, while thermocycling has a negative effect on denture repair strength.

show abstract

Preparation of Polymer-Nanodiamond Composites with Improved Properties

Cited by 18 publications

References 1 publication

Effect of Nanoparticle Incorporation and Surface Coating on Mechanical Properties of Bone Scaffolds: A Brief Review

Effect of Nanoparticle Incorporation and Surface Coating on Mechanical Properties of Bone Scaffolds: A Brief Review

Effect of Nanodiamond Addition on Flexural Strength, Impact Strength, and Surface Roughness of PMMA Denture Base

Polymethylmethacrylate Incorporating Nanodiamonds for Denture Repair: In Vitro Study on the Mechanical Properties

Contact Info

Product

Resources

About