Green Hydrogels Based on Starch: Preparation Methods for Biomedical Applications

Edgar, Kevin J.; Marks, Joyann

doi:10.1021/bk-2020-1372.ch010

Cited by 10 publications

(6 citation statements)

References 148 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…EDITED BY technological developments (Liu et al, 2022;Qamruzzaman et al, 2022). Moreover, the increasing attention to natural polymer-based products (Idrees et al, 2020;Samir et al, 2022;Pires et al, 2023) has increased the utilization of starch in various product formulations, including the production of starch-based hydrogels (Ismail et al, 2013;2013;Edgar and Marks, 2020;Qamruzzaman et al, 2022). Hydrogels are an extensive group of polymeric materials, developed from threedimensional crosslinked networks of hydrophilic or hydrophobic biopolymers and are widely known for their capacity to absorb and retain a significant amount of water (Singh et al, 2010;Biduski et al, 2018).…”

Section: Open Accessmentioning

confidence: 99%

See 1 more Smart Citation

Optimization of processing conditions of starch-based hydrogels produced by high-pressure processing (HPP) using response surface methodology

Koshenaj,

Ferrari

2024

Front. Food. Sci. Technol.

View full text Add to dashboard Cite

Introduction: This study aimed to determine the optimal processing conditions to produce stable starch-based hydrogels by high-pressure processing (HPP) via response surface methodology.Methods: The experiments were carried out with different starch suspensions, namely rice, corn, wheat, and tapioca starch, at a concentration in the range of 10%–40% w/w, processed at a pressure level of 600 MPa and holding times between 5 min and 15 min. Gel formation was assessed by determining the gelatinization extent and structuring level of the samples.Results and discussion: The results demonstrated that starch/water ratio and holding time had a significant impact on gel formation in HPP treatments. Various degrees of gelatinization were observed in the treated samples due to the water absorption capacity of the starch and the molecular interactions between water and starch occurring during gelatinization. Moreover, a highly structured hydrogel formed at starch concentrations higher than 25% (w/w), whereas when starch concentration was less than 20% (w/w) lower-structured hydrogels formed, as confirmed by the values of the efficiency index measured. Completely gelatinized, highly structured, and stable HPP hydrogels were obtained from starch solutions treated at the optimized processing conditions.

show abstract

Section: Open Accessmentioning

confidence: 99%

“…Starch-based hydrogels can be produced using physical or chemical cross-linking and graft polymerization treatments (Ismail et al, 2013;Xiao, 2013;Edgar and Marks, 2020;Cui et al, 2022). These conventional methods have faced several limitations, the most significant being long processing times and high energy consumption.…”

Section: Open Accessmentioning

confidence: 99%

Optimization of processing conditions of starch-based hydrogels produced by high-pressure processing (HPP) using response surface methodology

Koshenaj,

Ferrari

2024

Front. Food. Sci. Technol.

View full text Add to dashboard Cite

show abstract

“…Γ-Irradiation in solution benefits from enhanced polymer chain mobility sustaining degradation resistance. Pre-irradiation solution degassing minimizes polymer degradation [161]. Gamma-ray irradiation induces free radical formation in starch depolymerizing amylose and amylopectin.…”

Section: Chemical Crosslinkingmentioning

confidence: 99%

Chemical and Physical Architecture of Macromolecular Gels for Fracturing Fluid Applications in the Oil and Gas Industry; Current Status, Challenges, and Prospects

Khan

2024

Gels

View full text Add to dashboard Cite

Hydraulic fracturing is vital in recovering hydrocarbons from oil and gas reservoirs. It involves injecting a fluid under high pressure into reservoir rock. A significant part of fracturing fluids is the addition of polymers that become gels or gel-like under reservoir conditions. Polymers are employed as viscosifiers and friction reducers to provide proppants in fracturing fluids as a transport medium. There are numerous systems for fracturing fluids based on macromolecules. The employment of natural and man-made linear polymers, and also, to a lesser extent, synthetic hyperbranched polymers, as additives in fracturing fluids in the past one to two decades has shown great promise in enhancing the stability of fracturing fluids under various challenging reservoir conditions. Modern innovations demonstrate the importance of developing chemical structures and properties to improve performance. Key challenges include maintaining viscosity under reservoir conditions and achieving suitable shear-thinning behavior. The physical architecture of macromolecules and novel crosslinking processes are essential in addressing these issues. The effect of macromolecule interactions on reservoir conditions is very critical in regard to efficient fluid qualities and successful fracturing operations. In future, there is the potential for ongoing studies to produce specialized macromolecular solutions for increased efficiency and sustainability in oil and gas applications.

show abstract

“…Starch has an instigating chemistry for the development of materials, this chemical versatility produces polymers with different properties that can be tunable for several biomedical applications according to the desired final function [ 160 ].…”

Section: Plant-derived Polymersmentioning

confidence: 99%

Plant Polysaccharides in Engineered Pharmaceutical Gels

et al. 2022

View full text Add to dashboard Cite

Hydrogels are a great ally in the pharmaceutical and biomedical areas. They have a three-dimensional polymeric structure that allows the swelling of aqueous fluids, acting as an absorbent, or encapsulating bioactive agents for controlled drug release. Interestingly, plants are a source of biogels, specifically polysaccharides, composed of sugar monomers. The crosslinking of these polymeric chains forms an architecture similar to the extracellular matrix, enhancing the biocompatibility of such materials. Moreover, the rich hydroxyl monomers promote a hydrophilic behavior for these plant-derived polysaccharide gels, enabling their biodegradability and antimicrobial effects. From an economic point of view, such biogels help the circular economy, as a green material can be obtained with a low cost of production. As regards the bio aspect, it is astonishingly attractive since the raw materials (polysaccharides from plants-cellulose, hemicelluloses, lignin, inulin, pectin, starch, guar, and cashew gums, etc.) might be produced sustainably. Such properties make viable the applications of these biogels in contact with the human body, especially incorporating drugs for controlled release. In this context, this review describes some sources of plant-derived polysaccharide gels, their biological function, main methods for extraction, remarkable applications, and properties in the health field.

show abstract

Green Hydrogels Based on Starch: Preparation Methods for Biomedical Applications

Cited by 10 publications

References 148 publications

Optimization of processing conditions of starch-based hydrogels produced by high-pressure processing (HPP) using response surface methodology

Optimization of processing conditions of starch-based hydrogels produced by high-pressure processing (HPP) using response surface methodology

Chemical and Physical Architecture of Macromolecular Gels for Fracturing Fluid Applications in the Oil and Gas Industry; Current Status, Challenges, and Prospects

Plant Polysaccharides in Engineered Pharmaceutical Gels

Contact Info

Product

Resources

About