Polysaccharide-Based Superabsorbents: Synthesis, Properties, and Applications

Pérez‐Álvarez, Leyre; Ruiz‐Rubio, Leire; Lizundia, Erlantz; Vilas-Vilela, José Luis

doi:10.1007/978-3-319-77830-3_46

Cited by 12 publications

(49 citation statements)

References 133 publications

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“…They can be considered superabsorbent hydrogels (SAHs) when they absorb water more than 20 times of their initial weight [18]. SAHs are described as the best-known type of hydrogel for business purposes, with a volume representing approximately 80% of the hydrogel production [11]. Nevertheless, it is important to consider the ionic strength of the absorbed solution because that can affect the swelling degree of these hydrogels, which will no longer present the same superabsorption capacities as with pure water [6].…”

Section: What Is a Superabsorbent And A Hydrogel?mentioning

confidence: 99%

“…Polysaccharides have been the most used and studied among natural superabsorbents for their interesting properties and various applications. The most abundant polysaccharides found in nature are cellulose and chitin [11] from terrestrial plant and animal origin, respectively, but polysaccharides are present in all organisms including seaweeds and microorganisms [28].…”

Section: Polysaccharides Used For Superabsorbentsmentioning

confidence: 99%

“…In the literature, the most described absorbent polysaccharides are alginate, chitin and chitosan, starch, carrageenan, agar and agarose, pectin, hyaluronic acid, dextran, cellulose, and gums (Table 1). The most employed for superabsorbent applications are starch and heteropolysaccharides [11].…”

Section: Polysaccharides Used For Superabsorbentsmentioning

confidence: 99%

“…These groups form hydrogen bonds with water [9], causing its capture and leading to an absorption capacity from 10 to 1000 times the weight of the dry superabsorbent [10]. Due to their high production costs and non-biodegradability, these materials go against the emergence of environmental concern [7,11]. So, end users and scientists are now turning to biopolymers, which are synthesized by living organisms or chemically produced from biological materials because they It can be observed that the number of publications containing the word "hydrogel" has been steadily increasing since the 2000s.…”

Section: Introductionmentioning

confidence: 99%

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Biosourced Polysaccharide-Based Superabsorbents

et al. 2020

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In the last decades, many studies have been conducted on new materials to meet a growing industrial demand and to move scientific research forward. Superabsorbents are good examples of materials that have generated special attention in many fields for their ability to absorb and retain water up to 1000 times of their dry weight. They found many applications in hygiene products and other products, for a fast growing market of USD 9.58 Billion in 2019. Most of them are composed of synthetic polymers, which are often not environmentally friendly. Therefore, natural superabsorbents and particularly those based on polysaccharides have received a recent increased interest for their biodegradability, biocompatibility, and renewability. This review focuses on polysaccharide-based superabsorbents, on their properties, synthesis methods, and characterization. Their potential applications in many fields, such as biomedical and hygiene, agriculture, water treatment, and the building sector, are also reported with an interest in products already marketed.

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Section: What Is a Superabsorbent And A Hydrogel?mentioning

confidence: 99%

Section: Polysaccharides Used For Superabsorbentsmentioning

confidence: 99%

Section: Polysaccharides Used For Superabsorbentsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Biosourced Polysaccharide-Based Superabsorbents

et al. 2020

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“…More concretely, hydrogels present a high affinity for metal cations, dyes and many other molecules, being successfully employed as superabsorbent materials for the remediation of contaminants from water [ 22 , 23 , 24 , 25 , 26 ]. Heavy metals present in water could be responsible for many health issues in human beings and aquatic organisms directly or indirectly when coming in contact [ 27 ].…”

Section: Introductionmentioning

confidence: 99%

Hydrogel-Core Microstructured Polymer Optical Fibers for Selective Fiber Enhanced Raman Spectroscopy

Azkune

Ayesta

Ruiz‐Rubio

et al. 2021

Sensors

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A new approach of Fiber Enhanced Raman Spectroscopy (FERS) is described within this article based on the use of Hydrogel-Core microstructured Polymer Optical Fibers (HyC-mPOF). The incorporation of the hydrogel only on the core of the Hollow-Core microstructured Polymer Optical Fiber (HC-mPOF) enables to perform FERS measurements in a functionalized matrix, enabling high selectivity Raman measurements. The hydrogel formation was continuously monitored and quantified using a Principal Component Analysis verifying the coherence between the components and the Raman spectrum of the hydrogel. The performed measurements with high and low affinity target molecules prove the feasibility of the presented HyC-mPOF platform.

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