LBM of aluminum alloy: towards a control of material removal and roughness

Ahmed, Naveed; Pervaiz, Salman; Ahmad, Shafiq; Rafaqat, Madiha; Hassan, Ammar; Zaindin, Mazen

doi:10.1007/s00170-019-04365-y

Cited by 12 publications

(7 citation statements)

References 33 publications

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“…2 Commonly, hydrogels are fabricated from natural polymers such as gelatin, collagen, chitosan, hyaluronic acid, or from synthetic polymers such as poly(ethylene glycol), poly(glycolic acid), or poly(vinyl alcohol) (PVA). 3 Chitosan is a cationic, biocompatible, and biodegradable polysaccharide composed of chains of 2-acetamido-2-deoxy-β-Dglucopyranose and 2-amino-2-deoxy-β-D-glucopyranose units. Chitosan-based hydrogels are fabricated by physical or chemical crosslinking, for example, gelation by increasing the pH or photocrosslinking.…”

Section: Introductionmentioning

confidence: 99%

Development of gelatin/chitosan/PVA hydrogels: Thermal stability, water state, viscoelasticity, and cytotoxicity assays

Rodríguez‐Rodríguez

García-Carvajal

Jiménez‐Palomar³

et al. 2018

J of Applied Polymer Sci

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Gelatin/chitosan/poly(vinyl alcohol) (PVA) hydrogels were fabricated with different polymer ratio using the freeze-drying process. The thermal stability, water state, rheological, and cytotoxic properties of the hydrogels were evaluated. Thermogravimetric/differential scanning calorimetry analyses showed a decomposition onset temperature below 242.7 AE 2.7 C. The samples did not show statistical differences (p < 0.05) on the onset temperature values. Nonfreezing water reached a constant value around of 1 g water/g polymer. Freezing water increased linearly with the increase of the water content independently of the polymer ratio. The hydrogels showed an equilibrium water content from 9 to 13 times their mass. The hydrogels exhibited a solid-viscoelastic behavior. The elastic modulus was higher with the increase of chitosan concentration (G 0 = 22 170 AE 85 Pa) independently of the temperature (5-55 C). In vitro assay showed that hydrogels are nontoxic in the HT29-MTX-E12 cell line. These results indicate that the gelatin/chitosan/PVA hydrogels could be considered for biomedical applications.

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Section: Introductionmentioning

confidence: 99%

Development of gelatin/chitosan/PVA hydrogels: Thermal stability, water state, viscoelasticity, and cytotoxicity assays

Rodríguez‐Rodríguez

García-Carvajal

Jiménez‐Palomar³

et al. 2018

J of Applied Polymer Sci

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“…Hydrophilic gels also known as hydrogels are polymer chains networks that are occasionally observed as colloidal gels with the dispersion medium being water. [112] Recently, a ternary system of colloidal encapsulants such as chitosan, κ-carrageenan, and carboxymethylcellulose sodium salt (CMC-Na) has been used to prepare hydrogel-based oil encapsulation normally through cryotropic gelation. [113] Marchiori et al [105] developed SB-PSO based hydrogel with prolonged anti-inflammatory activity against UVB radiation-induced in mice.…”

Section: Formulation Of Pua and Other Compounds With Pso As Oil Phasementioning

confidence: 99%

Formulation of Pomegranate Seed Oil: A Promising Approach of Improving Stability and Health‐Promoting Properties

Adu‐Frimpong

Omari‐Siaw

Mukhtar

et al. 2018

Euro J Lipid Sci & Tech

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Emerging evidence has suggested that nutraceutical ingredients like pomegranate seed oil (PSO) possesses health‐promoting effects in cell and animal models. However, these health benefits (anticancer, antioxidant, anti‐inflammatory, anti‐diabetic, and so on) are limited by low physicochemical stability, slow intestinal absorption, and rapid metabolism of PSO. In order to overcome these drawbacks, some carriers viz., nanoemulsion, encapsulation, and nanoparticles are developed recently. This paper assesses the chemical compositions and physicochemical properties of PSO, as well as biological activities and possible mechanisms. It also discusses the formulation of PSO for improved stability and health‐promoting activities. Practical Applications: This review highlights the prospects of PSO formulation. The relevance of this study is that the stability and biological properties of PSO could be enhanced through nanocarriers. A formulated PSO has a potential use in nutraceutical, functional foods, pharmaceutical and cosmetic industries. PSO, a source of various nutrients and antioxidants with immense benefits to human health is incorporated into nanocarriers such as microencapsulation, nanoemulsion and nanoparticle. This improved the health‐promoting benefits of the oil.

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“…Several nonconventional methods can be applied for the micromachining of these "nonconductive" materials such as laser beam machining [7,8] and electric discharge machining (EDM) [9,10], but high tool wear (TW), low machining rate, and low finish of the surface are some of the challenges that deteriorate the geometrical features of the material [11,12]. Electrochemical dischargebased micromachining (ECDM) is known for machining these materials with ease and preferable machining features by combining the removal mechanism of both the EDM and electrochemical machining.…”

Section: Introductionmentioning

confidence: 99%

Review on Recent Advances, Research Trends, and Gas Film in Electrochemical Discharge-Based Micromachining

Rajput

Goud

Suri

2021

Journal of Micro and Nano-Manufacturing

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Electrochemical discharge machining (ECDM) is distinguished as a novel process that involves thermal heating and chemical dissolution for the micro-machining of "difficult-to-machine" materials like ceramics, quartz. This paper comprehensively reviews the study on gas film, the effect of various input parameters on ECDM performance, such as electrical parameters, electrolyte parameters, and tool electrode parameters, are also likewise discussed. Moreover, a summarized report on thermal modeling, gas film, discrete input parameters, hybridization, and variants in the ECDM process are also provided in a lucid manner. Based on the review, it is concluded that the machining performance of the ECDM process especially in terms of MRR, roughness, tool wear, and thermal cracks are strongly influenced by the input parameters. The formation of the gas film induces variable machining features that can be controlled by altering the machining conditions. Additionally, the paper highlights the future areas that may leads to improve the overall machining performance of the ECDM process.

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LBM of aluminum alloy: towards a control of material removal and roughness

Cited by 12 publications

References 33 publications

Development of gelatin/chitosan/PVA hydrogels: Thermal stability, water state, viscoelasticity, and cytotoxicity assays

Development of gelatin/chitosan/PVA hydrogels: Thermal stability, water state, viscoelasticity, and cytotoxicity assays

Formulation of Pomegranate Seed Oil: A Promising Approach of Improving Stability and Health‐Promoting Properties

Review on Recent Advances, Research Trends, and Gas Film in Electrochemical Discharge-Based Micromachining

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