Copolymers of starch, a sustainable template for biomedical applications: A review

Sarder, Roman; Piner, Emily V.; Rios, David Cruz; Chacon, Lisandra; Artner, Mirela Angelita; Barrios, Nelson; Argyropoulos, Dimitris S.

doi:10.1016/j.carbpol.2021.118973

Cited by 23 publications

(8 citation statements)

References 88 publications

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“…26−29 Besides, it has been used as a sustainable template for biomedical applications. 30 Although there are many reports on OSAtreated starch as a stabilizer and emulsifier in many food systems, 31,32 only a few reports are available on its melt blending with polymer matrices. 26,33 In the current study, OSA was grafted on the surface of starch particles (OSA-g-starch) through a simple and solventfree method to not only strengthen polymer/particle interfacial adhesion but also improve starch dispersion in the matrix significantly.…”

Section: ■ Introductionmentioning

confidence: 99%

“…Octadecenyl succinic anhydride (OSA) is the most popular alkenyl succinic anhydride, which has been used for a long time for starch hydrophobization. OSA-treated starch containing 3.0 wt % OSA has even been approved by FDA in foods. − Besides, it has been used as a sustainable template for biomedical applications . Although there are many reports on OSA-treated starch as a stabilizer and emulsifier in many food systems, , only a few reports are available on its melt blending with polymer matrices. , …”

Section: Introductionmentioning

confidence: 99%

“… 26 − 29 Besides, it has been used as a sustainable template for biomedical applications. 30 Although there are many reports on OSA-treated starch as a stabilizer and emulsifier in many food systems, 31 , 32 only a few reports are available on its melt blending with polymer matrices. 26 , 33 …”

Section: Introductionmentioning

confidence: 99%

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Heat-Induced Actuator Fibers: Starch-Containing Biopolyamide Composites for Functional Textiles

Baniasadi,

Madani,

Mohan

et al. 2023

ACS Appl. Mater. Interfaces

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This study introduces the development of a thermally responsive shape-morphing fabric using low-melting-point polyamide shape memory actuators. To facilitate the blending of biomaterials, we report the synthesis and characterization of a biopolyamide with a relatively low melting point. Additionally, we present a straightforward and solvent-free method for the compatibilization of starch particles with the synthesized biopolyamide, aiming to enhance the sustainability of polyamide and customize the actuation temperature. Subsequently, homogeneous dispersion of up to 70 wt % compatibilized starch particles into the matrix is achieved. The resulting composites exhibit excellent mechanical properties comparable to those reported for soft and tough materials, making them well suited for textile integration. Furthermore, cyclic thermomechanical tests were conducted to evaluate the shape memory and shape recovery of both plain polyamide and composites. The results confirmed their remarkable shape recovery properties. To demonstrate the potential application of biocomposites in textiles, a heat-responsive fabric was created using thermoresponsive shape memory polymer actuators composed of a biocomposite containing 50 wt % compatibilized starch. This fabric demonstrates the ability to repeatedly undergo significant heat-induced deformations by opening and closing pores, thereby exposing hidden functionalities through heat stimulation. This innovative approach provides a convenient pathway for designing heat-responsive textiles, adding value to state-of-the-art smart textiles.

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Section: ■ Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Heat-Induced Actuator Fibers: Starch-Containing Biopolyamide Composites for Functional Textiles

Baniasadi,

Madani,

Mohan

et al. 2023

ACS Appl. Mater. Interfaces

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“…At present, most researches immobilized the enzyme on the starch by cross‐linking, [19] which reduced the reaction resistance between the substrates and the enzymes. The advantages of covalent conjugation are that the enzymes were firmly combined with the carriers, and the enzymes are not easy to fall off; the disadvantages of that include violent reaction conditions, great loss of enzyme activity, and complex preparation process.…”

Section: Introductionmentioning

confidence: 99%

“…[16] In addition, starch has the characteristics of low toxicity, complete biodegradability, high water absorption and expansion, low cost, renewability and a large number of hydroxyl groups, which make it excellent carrier for the immobilized enzymes. [17,18] At present, most researches immobilized the enzyme on the starch by cross-linking, [19] which reduced the reaction resistance between the substrates and the enzymes. The advantages of covalent conjugation are that the enzymes were firmly combined with the carriers, and the enzymes are not easy to fall off; the disadvantages of that include violent reaction conditions, great loss of enzyme activity, and complex preparation process.…”

Section: Introductionmentioning

confidence: 99%

Preparation and Catalytic Properties of Lipase Immobilized on Epoxy‐functionalized Starch Nanoparticles

Wang

Dong

et al. 2023

ChemistrySelect

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As a natural macromolecular material, starch is an ideal carrier for enzyme immobilization because of its widely available source, easy regeneration and excellent biodegradability. However, the natural starch cannot be directly used for immobilization due to the large particle size and excessive hydrophilicity. In this paper, the epoxy groups were grafted onto esterified starch by bifunctional reagents. The grafting efficiency of epoxy groups was increased by starvation drop addition. The changes of contact angle and particle size are conducive to the adsorption of immobilized enzyme at the water oil interface in the subsequent enzyme catalytic reaction, hence improve of the lipase activity. The maximum amount of lipase mobilized on such modified starch was ∼143.7 mg/g, which was near 40 mg/g higher than that of those from direct crosslinking. The immobilized enzymes showed excellent resistance to organic solvents and good reusability. Immobilization of lipases on epoxy‐functionalized starch nanoparticles can potentially improves the possibility of enzymes industrial application.

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Biopolymer Nanovehicles for Oral Delivery of Natural Anticancer Agents

Falsafi

Wang

Ashaolu

et al. 2022

Adv Funct Materials

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Cancer is the second leading cause of death throughout the world. Nature‐inspired anticancer agents (NAAs) that are a gift of nature to humanity have been extensively utilized in the alleviation/prevention of the disease due to their numerous pharmacological activities. While the oral route is an ideal and common way of drug administration, the application of NAAs through the oral pathway has been extremely limited owing to their inherent features, e.g., poor solubility, gastrointestinal (GI) instability, and low bioavailability. With the development of nano‐driven encapsulation strategies, polymeric vehicles, especially those with natural origins, have demonstrated a potent platform, which can professionally shield versatile NAAs against GI barricades and safely deliver them to the site of action. In this review, the predicament of orally delivering NAAs and the encapsulation strategy solutions based on biopolymer matrices are summarized. Proof‐of‐concept in vitro/in vivo results are also discussed for oral delivery of these agents by various biopolymer vehicles, which can be found so far from the literature. Last but not the least, the challenges and new opportunities in the field are highlighted.

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Copolymers of starch, a sustainable template for biomedical applications: A review

Cited by 23 publications

References 88 publications

Heat-Induced Actuator Fibers: Starch-Containing Biopolyamide Composites for Functional Textiles

Heat-Induced Actuator Fibers: Starch-Containing Biopolyamide Composites for Functional Textiles

Preparation and Catalytic Properties of Lipase Immobilized on Epoxy‐functionalized Starch Nanoparticles

Biopolymer Nanovehicles for Oral Delivery of Natural Anticancer Agents

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