Synthetic Polymer Hydrogels

Kumar, Anitha C.; Erothu, Harikrishna

doi:10.1002/9783527690916.ch6

Cited by 14 publications

(9 citation statements)

References 84 publications

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“… 58 These synthetic polymers have low immunogenicity and their mechanical properties and physicochemical properties can be easily controlled. 59 , 60 However, the application of synthetic polymers to probiotics is still limited because organic solvents used in the preparation can cause cell damage.…”

Section: Formulations For the Effective Delivery Of Probioticsmentioning

confidence: 99%

Advancements in the Pharmaceutical Applications of Probiotics: Dosage Forms and Formulation Technology

Baral¹,

Bajracharya²,

Lee³

et al. 2021

IJN

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Section: Formulations For the Effective Delivery Of Probioticsmentioning

confidence: 99%

Advancements in the Pharmaceutical Applications of Probiotics: Dosage Forms and Formulation Technology

Baral¹,

Bajracharya²,

Lee³

et al. 2021

IJN

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“…Among the variety of magnetic composite materials filled with MPs, the hydrogelbased magnetic composites are in the focus of bioengineering applications. A hydrogel is a polymeric network swollen in water [9][10][11]. Hydrogels are able to contain more than 99% of water by volume, which makes them compositionally similar to biological tissues.…”

Section: Introductionmentioning

confidence: 99%

Echogenic Advantages of Ferrogels Filled with Magnetic Sub-Microparticles

et al. 2021

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Ultrasonic imaging of ferrogels (FGs) filled with magnetic nanoparticles does not reflect the inner structure of FGs due to the small size of particles. To determine whether larger particle size would improve the acoustic properties of FGs, biocompatible hydrogels filled with 100–400 nm iron oxide magnetic sub-microparticles with weight fraction up to 23.3% were synthesized and studied. Polymeric networks of synthesized FGs were comprised of chemically cross-linked polyacrylamide with interpenetrating physical network of natural polysaccharide—Guar or Xanthan. Cylindrical samples approximately 10 mm in height and 13 mm in diameter were immersed in a water bath and examined using medical ultrasound (8.5 MHz). The acoustic properties of FGs were characterized by the intensity of reflected echo signal. It was found that the echogenicity of sub-microparticles provides visualization not only of the outer geometry of the gel sample but of its inner structure as well. In particular, the echogenicity of FGs interior depended on the concentration of magnetic particles in the FGs network. The ultrasound monitoring of the shape, dimensions, and inner structure of FGs in the applied external magnetic field is demonstrated. It is especially valuable for the application of FGs in tissue engineering and regenerative medicine.

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“…Water plays an important role in determining the physico-chemical properties of the hydrogels. The number of linkages and strength (type) of moieties used in the linkages determine the degree of self-healing ability, the stability of hydrogel formation and the mechanical properties of the hydrogel [6,18]. Hydrogels may display reversible sol-gel transitions, which are induced by changes in the environmental conditions such as humidity, temperature, pH, ionic strength and wavelength of light.…”

Section: Introductionmentioning

confidence: 99%

“…A large number of synthetic hydrogels with cross-linked networks of polymers are available. Poly(acrylic acid) and its derivatives, poly(ethylene oxide) and its copolymers, poly(vinyl alcohol), poly(vinyl pyrrolidone) and polypeptides are the main class of synthetic hydrogels [18]. The structural properties of hydrogels make them useful for various soft robotics, biomedical applications and tissue engineering, such as sensors, contact lenses, artificial organs and drug delivery systems [6,[18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

Bioinspired self-healing, superliquiphobic and self-cleaning hydrogel-coated surfaces with high durability

Multanen

Bhushan

2019

Phil. Trans. R. Soc. A.

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Bioinspired self-healing materials are being developed with intrinsic or extrinsic mechanisms. Some materials heal by an external stimulus, such as heat, UV light, pH, electric field and humidity. Hydrogels are among the commonly used materials, which can self-heal by application of an external stimulus. In this study, a self-healing polyacrylamide hydrogel was selected which is known to swell when exposed to water and heal. Silica nanoparticles were added to the hydrogel and a fluorosilane overcoat was used to produce a superliquiphobic surface with a low tilt angle and self-cleaning properties. A fused titania coating on the glass substrate was used to promote adhesion to hydrogel coatings. Hydrogel-based coatings exhibited the ability to repel water and oil, anti-icing properties down to −60°C, self-cleaning, the ability to maintain superliquiphobicity in hot environments up to about 95°C and high wear resistance. The hydrogel-based coating also demonstrated self-healing capability after hydration of a scratched surface. This article is part of the theme issue ‘Bioinspired materials and surfaces for green science and technology (part 2)’.

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Synthetic Polymer Hydrogels

Cited by 14 publications

References 84 publications

Advancements in the Pharmaceutical Applications of Probiotics: Dosage Forms and Formulation Technology

Advancements in the Pharmaceutical Applications of Probiotics: Dosage Forms and Formulation Technology

Echogenic Advantages of Ferrogels Filled with Magnetic Sub-Microparticles

Bioinspired self-healing, superliquiphobic and self-cleaning hydrogel-coated surfaces with high durability

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