Friction properties of novel PVP/PVA blend hydrogels as artificial cartilage

Ma, Rujiang; Xiong, Dangsheng; Mao, Feng; Zhang, Jinfeng; Peng, Yujia

doi:10.1002/jbm.a.32552

Cited by 46 publications

(29 citation statements)

References 23 publications

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“…The characteristics of physical hydrogels formed by freezing/thawing method are comparable with that of articular and meniscal cartilage [18], and, in addition, the excellent wear resistance and tribological properties [7,8,[14][15][16], make them suitable biomaterials for tissue engineering applications.…”

Section: Pva/pvp Hydrogel Structurementioning

confidence: 99%

“…PVA and PVP have been demonstrated to form a thermodynamically miscible pair [12,13], their chains interacting by hydrogen bonds due to hydroxyl groups of PVA and proton accepting carbonyl group of PVP ring. By adding PVP to PVA hydrogels, it was observed that PVP enhances lubricity, mechanical and tribological characteristics [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

“…The hydrogels can be obtained using different chemical or physical methods [1][2][3][4][5][6][7][8][9][10][14][15][16][17][18][19][20][21][22][23][24][25]. Chemical crosslinking provides a more controllable network structure with uniform pore sizes but requires a careful purification step to remove the free unreacted crosslinker, initiator or monomers with potential toxicity.…”

Section: Introductionmentioning

confidence: 99%

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Rheological investigation of poly(vinyl alcohol)/poly(N-vinyl pyrrolidone) mixtures in aqueous solution and hydrogel state

2016

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Rheological behavior of poly(vinyl alcohol) (PVA) and poly(N-vinyl pyrrolidone) (PVP) mixtures in aqueous solutions and hydrogel state was investigated. The complex dependence of the viscosity on PVA/PVP mixture composition could be attributed to cumulative effects of electrostatic interactions, hydrogen bonding or association phenomena. Physical hydrogels were prepared by freezing/thawing method and their viscoelastic properties were followed as a function of number of cryogenic cycles and aging time at 37°C. From swelling experiments, it was observed that the diffusion of water molecules into the hydrogel pores is Fickian (for low number of cryogenic cycles) and it becomes pseudo-Fickian as the sample is submitted to more than 10 freezing/thawing cycles. PVA/PVP hydrogels obtained by physical interactions present a high degree of tailorability and they are suitable candidates for biomedical applications.

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Section: Pva/pvp Hydrogel Structurementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Rheological investigation of poly(vinyl alcohol)/poly(N-vinyl pyrrolidone) mixtures in aqueous solution and hydrogel state

2016

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“…Therefore, a detailed understanding of the surface roughness of articular cartilage is important to understand how natural joints behave. Knowledge of surface roughness will also be important for the development of new synthetic or tissue engineered materials to replace diseased or damaged articular cartilage (Ateshian, 2007;Danisovic et al, 2012;Ma et al, 2010). Articular cartilage in need of replacement is typically damaged Espino, 2011, 2012).…”

Section: Introductionmentioning

confidence: 98%

Investigation of techniques for the measurement of articular cartilage surface roughness

Ghosh

Bowen

Jiang

et al. 2013

Micron

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Articular cartilage is the bearing surface of synovial joints and plays a crucial role in the tribology to enable low friction joint movement. A detailed understanding of the surface roughness of articular cartilage is important to understand how natural joints behave and the parameters required for future joint replacement materials. Bovine articular cartilage on bone samples was prepared and the surface roughness was measured using scanning electron microscopy stereoscopic imaging at magnifications in the range 500× to 2000×. The surface roughness (two-dimensional, R(a), and three-dimensional, S(a)) of each sample was then measured using atomic force microscopy (AFM). For stereoscopic imaging the surface roughness was found to linearly increase with increasing magnification. At a magnification of 500× the mean surface roughness, R(a), was in the range 165.4±5.2 nm to 174±39.3 nm; total surface roughness S(a) was in the range 183-261 nm. The surface roughness measurements made using AFM showed R(a) in the range 82.6±4.6 nm to 114.4±44.9 nm and S(a) in the range 86-136 nm. Values obtained using SEM stereo imaging were always larger than those obtained using AFM. Stereoscopic imaging can be used to investigate the surface roughness of articular cartilage. The variations seen between measurement techniques show that when making comparisons between the surface roughness of articular cartilage it is important that the same technique is used.

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“…Adding polyethylene glycol [182] and acrylamide [181] into PVA during annealing can get both good mechanical properties and lubricity. Introducing poly(vinyl pyrrolidone) into PVA hydrogel can enhance the mechanical properties and decrease friction coefficient due to the formation of hydrogen bond [183][184][185]. Except the incorporation of hydrophilic polymers such as polyacrylamide and poly(vinyl pyrrolidone) into PVA by blending, a hydrophilic-hydrophobic copolymer hydrogel of PVA and poly(ethylene-co-vinyl alcohol)(EVAL) has also been studied.…”

Section: Hydrogels Used As Articular Cartilage Biomaterialsmentioning

confidence: 98%

The recent progress of tribological biomaterials

Shi

Guo

Liu

2015

Biosurface and Biotribology

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Tribological phenomena abundantly exist in living beings, especially in human beings, such as teeth, eyes, bones, skins, heart valves and so on, and it is of meanings to reveal the mechanism of tribology in human body and fabricate artificial biomaterials to replace the damaged tissues to release the pain of patients. Alloys, ceramics and polymers are three uppermost materials used in engineering and some of them play a crucial role in biomedicine. In the paper, we provide an overview of the tribological behaviors of artificial biomaterials including alloys, ceramics and polymers. We aim to provide fundamental mechanistic and applications of tribological biomaterials, while emphasizing the advantages and disadvantages of various kinds of tribological biomaterials. Finally, some challenges and the potential promising breakthroughs are also succinctly highlighted in this field.

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Friction properties of novel PVP/PVA blend hydrogels as artificial cartilage

Cited by 46 publications

References 23 publications

Rheological investigation of poly(vinyl alcohol)/poly(N-vinyl pyrrolidone) mixtures in aqueous solution and hydrogel state

Rheological investigation of poly(vinyl alcohol)/poly(N-vinyl pyrrolidone) mixtures in aqueous solution and hydrogel state

Investigation of techniques for the measurement of articular cartilage surface roughness

The recent progress of tribological biomaterials

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