Unexpected Strength and Toughness in Chitosan‐Fibroin Laminates Inspired by Insect Cuticle

Fernandez, Javier G.; Ingber, Donald E.

doi:10.1002/adma.201104051

Cited by 106 publications

(110 citation statements)

References 29 publications

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“…Recently, insect cuticle has started to inspire the development of novel biomimetic materials (Bhushan, 2009;Fernandez and Ingber, 2012;Miessner et al, 2001;Vincent, 2008). However, we still know very little about its basic mechanical properties, such as stiffness, strength or toughness (Dirks and Taylor, 2012a;Klocke and Schmitz, 2011), and nothing about fatigue (Vincent and Wegst, 2004).…”

Section: Discussionmentioning

confidence: 99%

Fatigue of insect cuticle

Dirks

Parle

Taylor

2013

Journal of Experimental Biology

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SUMMARYMany parts of the insect exoskeleton experience repeated cyclic loading. Although the cuticle of insects and other arthropods is the second most common natural composite material in the world, so far nothing is known about its fatigue properties, despite the fact that fatigue undoubtedly limits the durability of body parts in vivo. For the first time, we here present experimental fatigue data of insect cuticle. Using force-controlled cyclic loading, we determined the number of cycles to failure for hind legs (tibiae) and hind wings of the locust Schistocerca gregaria, as a function of the applied cyclic stress. Our results show that, although both are made from cuticle, these two body parts behave very differently. Wing samples showed a large fatigue range, failing after 100,000 cycles when we applied 46% of the stress needed for instantaneous failure [the ultimate tensile strength (UTS)]. Legs, in contrast, were able to sustain a stress of 76% of the UTS for the same number of cycles to failure. This can be explained by the difference in the composition and structure of the material, two factors that, amongst others, also affect the well-known behaviour of engineering composites. Final failure of the tibiae occurred via one of two different failure modes -crack propagation in tension or buckling in compression -indicating that the tibia is ʻoptimizedʼ by evolution to resist both failure modes equally. These results are further discussed in relation to the evolution and normal use of these two body parts.

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Section: Discussionmentioning

confidence: 99%

Fatigue of insect cuticle

Dirks

Parle

Taylor

2013

Journal of Experimental Biology

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“…Sin embargo, otros biopolímeros se caracterizan por el bajo rendimiento de producción y los altos costos que representa elaborarlos, lo que ha limitado la aplicación de algunos de estos en ciertos sectores industriales y se ha convertido en un reto para los investigadores [22]. Entre los biopolímeros que tienen aplicación específica en empaques de alimentos, están los almidones y celulosas de diversas fuentes [11,26], zeína de maíz y proteína de soja [24]; también sobresalen las mezclas entre proteína de soja con ácido poliláctico (PLA) [27], proteína de suero de leche como recubrimiento de películas de PLA [28], quitosano combinado con polímeros resistentes al agua [29], FS y PVA [30], quitosano y FS [9], entre otros.…”

Section: Aplicaciones De Biopolímeros En Empaquesunclassified

“…Éstas se pueden aplicar en diversos campos, como: biomedicina [44], farmacología, óptica [8], industria cosmética [45], empaques [9] y muchos más. En cuanto a las aplicaciones relacionadas con empaques de alimentos, sobresalen el desarrollo de sensores con nanoestructuras metálicas y FS para determinar la calidad del alimento [46]; el desarrollo de empaques con inclusión de FS como componente funcional [30]; la evaluación del efecto antimicrobiano de películas comestibles de FS carragenina y extracto de semillas de uva [47]; entre otros.…”

Section: Aplicaciones De La Fsunclassified

“…Las propiedades de este nuevo material están relacionadas con el orden y las proporciones de ambos elementos, lo que permite obtener un acabado laminar similar al del plástico. Las propiedades y atributos de Shrilk lo convierten en un material adecuado para reemplazar muchos polímeros sintéticos, lo que permite que sea una gran opción para el desarrollo de empaques, bolsas y pañales biodegradables, entre otros [9].…”

Section: Biomateriales Laminados Con Fsunclassified

“…A partir estos residuos fibrosos, es posible extraer proteínas como la fibroína [6], que puede ser usada como biomaterial en formas tan diversas como: películas, esponjas, geles o andamios celulares [7]; que son empleadas en sectores como medicina, farmacología, cosmética [8], o bien en el desarrollo de nuevos materiales que pueden reemplazar plásticos. Esto convierte a la FS en una potencial materia prima para el desarrollo de empaques o bolsas biodegradables [9].…”

Section: Introductionunclassified

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Revisión: Fibroína de seda y sus potenciales aplicaciones en empaques biodegradables para alimentos/Review: silk fibroin and their potential applications on biodegradable food packaging

et al. 2017

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RESUMENEl cuidado del medioambiente y el uso responsable de los recursos, ha promovido investigaciones con diferentes biopolímeros que permitan el desarrollo de nuevos materiales que puedan ser empleados en empaques para alimentos. Entre estos biopolímeros se encuentra la fibroína de seda (FS), que representa cerca del 70% de la fibra de seda y puede ser obtenida a partir de capullos de primera calidad o de los desperdicios generados en la producción serícola. En el desarrollo de empaques de alimentos con FS, se pueden dar dos alternativas de producción, una en la que la FS puede ser funcionalizada por otros componentes, y otra en la que se incluye la FS como componente funcional modificando otros biopolímeros. La FS puede conferirle al material de empaque ciertas propiedades, como: aumento de la permeabilidad de oxígeno, resistencia a la rotura y una mayor velocidad de degradación del biopolímero. Este artículo se centra en cuatro temas principales: empaques, biopolímeros en empaques, FS y finalmente, la FS en empaques para alimentos.Palabras clave: Empaques, Materiales poliméricos, Biopolímeros, Fibroína de seda, Biomateriales. ABSTRACTEnvironmental protection and responsible use of resources, have promoted research of different biopolymers allowing to develop biodegradable materials which can be used in food packaging. Among these biopolymers is silk fibroin (SF), this protein represents nearly 70% of the silk fiber and it can be obtained from high quality cocoons or from waste generated in the silk industry. In the development of food packaging with SF, there are two possible alternative of production, one in what the SF can be functionalized by other components and another in which, the FS is included as functional component modifying other biopolymers. In the case of food packaging, the SF can concede desirable properties to the package such as an increase in oxygen permeability, more tensile strength and a higher biopolymer degradation rate. This paper is focused on four main topics: packaging, biopolymers in packaging, SF and finally, the SF in food packaging.

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Large‐Scale Artificial Production of Coleoptera Cuticle Iridescence and Its Use in Conformal Biodegradable Coatings

Kompa,

Finet,

Saranathan

et al. 2024

Adv Eng Mater

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In this study, bioinspired chitinous manufacturing is leveraged to artificially reproduce iridescent gratings found in the cuticles of beetles living in concealed environments. Combining this with a melanin‐like background achieves a vibrant iridescence, similar to that produced by the multilayer reflectors in leaf beetles. In this process, the controlled production of optical structures is allowed using chitinous polymers, the same components that produce color in arthropod cuticles. This not only aids in understanding the functionality and evolutionary advantages of these structures without being limited to the existing solutions in animals—which entangle the solutions for several problems with the rubble of past functionalities—but also enables the creation of color with the second most abundant organic material on Earth, only surpassed in its ubiquity by cellulose. However, unlike cellulose‐based materials, the chitinous optical structures are produced by avoiding the use of strong organic solvents, representing a simplified approach to producing vibrant, iridescent, fully biodegradable, and ecologically integrated colors. Herein, the production of hundreds of square centimeters of iridescent chitinous surfaces, a scale suitable for imparting biodegradable color to large 3D objects, is demonstrated.

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Unexpected Strength and Toughness in Chitosan‐Fibroin Laminates Inspired by Insect Cuticle

Cited by 106 publications

References 29 publications

Fatigue of insect cuticle

Fatigue of insect cuticle

Revisión: Fibroína de seda y sus potenciales aplicaciones en empaques biodegradables para alimentos/Review: silk fibroin and their potential applications on biodegradable food packaging

Large‐Scale Artificial Production of Coleoptera Cuticle Iridescence and Its Use in Conformal Biodegradable Coatings

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