Alginate based polyurethanes: A review of recent advances and perspective

Zia, Khalid Mahmood; Zia, Fatima; Zuber, Mohammad; Rehman, Saima; Ahmad, Mirza Nadeem

doi:10.1016/j.ijbiomac.2015.04.076

Cited by 142 publications

(58 citation statements)

References 162 publications

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“…Alginate is a hydrocolloid, composed of two different uronic acids (Kraan, ; Venkatesan, Bhatnagar, Manivasagan, Kang, & Kim, ). The salt form of alginic acid (for example, sodium alginate) is a major component of the cell wall of brown seaweeds, and may represent as much as 17% to 47% of the total dry weight of the algae (Mabaeu & Kloareg, ; Rehm, ; Zia, Zia, Zuber, Rehman, & Ahmad, ). Alginate has thickening, stabilizing, and gel‐forming properties; it is bioactive, biodegradable, and biocompatible in nature, and it has very low toxicity (Zia et al., ).…”

Section: Polysaccharides Of the Brown Seaweedsmentioning

confidence: 99%

Nutraceutical Potential of Seaweed Polysaccharides: Structure, Bioactivity, Safety, and Toxicity

Tanna

Mishra

2019

Comp Rev Food Sci Food Safe

226

108

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In recent years, marine organisms including seaweeds have been highlighted as potential sources of useful metabolites and bioactive compounds, with vast biological and physiological activities. Seaweeds have long been used as a food source, for medicinal purposes, and as dietary supplements in various Asian countries, and their potential benefits have recently attracted the attention of many Western and European countries. Their commercial value depends on their applications in the food, nutraceutical, and pharmaceutical industries. Seaweeds are considered a potential source of nutraceuticals or functional foods, and analysis of taste‐oriented motives has revealed that seaweeds are preferentially selected over other types of marine foods by seafood consumers and people with high levels of health, education, and living status. It is a general perception that health conscious people prefer environmentally friendly food sources, and present an opportunity to focus on seaweed‐based foods, which have significant nutritional benefits to humans. Among the various bioactive constituents, seaweed polysaccharides have been proven to possess various beneficial properties including anticoagulant, anti‐inflammatory, antioxidant, anticarcinogenic, and antiviral activities. The diversity and composition of seaweed polysaccharides play vital roles in these biological activities. Seaweeds are a rich source of sulfated polysaccharides, which are responsible for much of the bioactivity, as they can interact with various textures and cellular proteins. A number of toxicological assays and clinical trials suggest that the ingestion of seaweeds as functional foods should be considered worldwide to improve immune responses. In this review, different polysaccharides from seaweeds and their compositions and potential nutraceutical applications are discussed.

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Section: Polysaccharides Of the Brown Seaweedsmentioning

confidence: 99%

Nutraceutical Potential of Seaweed Polysaccharides: Structure, Bioactivity, Safety, and Toxicity

Tanna

Mishra

2019

Comp Rev Food Sci Food Safe

226

108

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“…Aliphatic polycarbonate‐based macropolyols with molecular weights of several thousands are also materials of commercial interest, particularly in the bulk polyurethane (PU) industry, when they are reacted with di(or poly)isocyanates . The development of environment friendly PUs, such as bio‐based, biodegradable, and nonisocyanate PUs, is an issue currently being addressed by scientists . Aliphatic polycarbonate‐based macropolyols can be synthesized by either CO 2 /epoxide copolymerizations, or by the polycondensation of α,ω‐alkanediols with DMC.…”

Section: Introductionmentioning

confidence: 99%

Chopping high‐molecular weight poly(1,4‐butylene carbonate‐co‐aromatic ester)s for macropolyol synthesis

Park

Lee

Park

et al. 2016

J of Applied Polymer Sci

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The condensation of a mixture of dimethyl carbonate and phthalate derivatives with 1,4‐butanediol (BD), catalyzed by sodium alkoxide, generated high‐molecular weight poly(1,4‐butylene carbonate‐co‐aromatic ester)s with molecular weights (Mn) of 50–120 kDa. The subsequent addition of polyols [BD, glycerol propoxylate, 1,1,1‐tris(hydroxymethyl)ethane, or pentaerythritol] chopped these high‐molecular weight polymers to afford macrodiols or macropolyols with facile control of their molecular weights (Mn, 2000–3000 Da) and unique chain topological compositions. Macropolyols prepared by chopping poly(1,4‐butylene carbonate‐co‐terephthalate) were waxy in nature, whereas those containing isophthalate and phthalate units were oily. The macropolyols synthesized by this chopping method may have potential applications in the polyurethane industry. © 2016 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2016, 133, 43754.

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“…Polymeric materials are vital compounds in the material world and modern industrial economics. According to their basis of origin, they are classified into three main categories: (1) natural polymers (proteins, polysaccharides, and polyesters), (2) semisynthetic (cellulose nitrate and hydro‐halogenated rubber), and (3) synthetic polymers . Polyurethane (PU) is an attractive multifaceted synthetic elastomer invented by Profess or Otto Bayer in 1937 .…”

Section: Introductionmentioning

confidence: 99%

Recent advance in antibacterial activity of nanoparticles contained polyurethane

Farrokhi

Ayati

Kanvisi

et al. 2018

J of Applied Polymer Sci

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Polyurethanes (PUs) are among the most widely used polymers with various applications in several industries. Antibacterial activity is an important feature of PU materials used in medical or many other related consumer products. They can, however, be easily colonized by bacteria and fungi, which may cause many problems for human health. It is therefore very important to enhance the antimicrobial properties of PUs, besides improving their chemical and physical properties. The incorporation of some antibacterial materials in the PUs' polymeric matrices is an effective strategy to improve their antibacterial activity. In this regard, the addition of some materials including Ag, Au, ZnO, and TiO2 nanoparticles, carbon nanotubes and chitosan to the PUs' material structure is reviewed in this article, and their antibacterial mechanisms are discussed. © 2018 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2019, 136, 46997.

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Alginate based polyurethanes: A review of recent advances and perspective

Cited by 142 publications

References 162 publications

Nutraceutical Potential of Seaweed Polysaccharides: Structure, Bioactivity, Safety, and Toxicity

Nutraceutical Potential of Seaweed Polysaccharides: Structure, Bioactivity, Safety, and Toxicity

Chopping high‐molecular weight poly(1,4‐butylene carbonate‐co‐aromatic ester)s for macropolyol synthesis

Recent advance in antibacterial activity of nanoparticles contained polyurethane

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