Recent advances in the sustainable design and applications of biodegradable polymers

Rai, Pawankumar; Mehrotra, Srishti; Priya, Smriti; Gnansounou, Edgard; Sharma, Sandeep

doi:10.1016/j.biortech.2021.124739

Cited by 294 publications

(162 citation statements)

References 131 publications

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“…The variants of PVA are usually chosen as supporting structure due to its good solubility in water. The spread of biodegradable excipients in the industrial production not only decreases the ecological footprint [41] but is also an adequate step towards a sustainable, zero-waste manufacturing [42]. Polyvinyl alcohol is used primarily in topical pharmaceutical and ophthalmic formulations [43].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of Biodegradable PVA-Based 3D Printed Carriers during Dissolution

et al. 2021

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The presence of additive manufacturing, especially 3D printing, has the potential to revolutionize pharmaceutical manufacturing owing to the distinctive capabilities of personalized pharmaceutical manufacturing. This study’s aim was to examine the behavior of commonly used polyvinyl alcohol (PVA) under in vitro dissolution conditions. Polylactic acid (PLA) was also used as a comparator. The carriers were designed and fabricated using computer-aided design (CAD). After printing the containers, the behavior of PVA under in vitro simulated biorelevant conditions was monitored by gravimetry and dynamic light scattering (DLS) methods. The results show that in all the dissolution media PVA carriers were dissolved; the particle size was under 300 nm. However, the dissolution rate was different in various dissolution media. In addition to studying the PVA, as drug delivery carriers, the kinetics of drug release were investigated. These dissolution test results accompanied with UV spectrophotometry tracking indirectly determine the possibilities for modifying the output of quality by computer design.

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Section: Introductionmentioning

confidence: 99%

Evaluation of Biodegradable PVA-Based 3D Printed Carriers during Dissolution

et al. 2021

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“…The growing demand for polymer materials has increased the environmental requirements for these products. Therefore, scientists have begun to look for new methods of obtaining more natural additives for polymer composites consistent with the principles of Sustainable Development [ 1 , 2 ].…”

Section: Introductionmentioning

confidence: 99%

Biobased Polyurethane Composite Foams Reinforced with Plum Stones and Silanized Plum Stones

Miedzińska

Członka

Strąkowska

et al. 2021

IJMS

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In the following study, ground plum stones and silanized ground plum stones were used as natural fillers for novel polyurethane (PUR) composite foams. The impact of 1, 2, and 5 wt.% of fillers on the cellular structure, foaming parameters, and mechanical, thermomechanical, and thermal properties of produced foams were assessed. The results showed that the silanization process leads to acquiring fillers with a smoother surface compared to unmodified filler. The results also showed that the morphology of the obtained materials is affected by the type and content of filler. Moreover, the modified PUR foams showed improved properties. For example, compared with the reference foam (PUR_REF), the foam with the addition of 1 wt.% of unmodified plum filler showed better mechanical properties, such as higher compressive strength (~8% improvement) and better flexural strength (~6% improvement). The addition of silanized plum filler improved the thermal stability and hydrophobic character of PUR foams. This work shows the relationship between the mechanical, thermal, and application properties of the obtained PUR composites depending on the modification of the filler used during synthesis.

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“…The accumulation of plastic wastes is a globally recognized problem that involves an extremely negative impact on the environment [ 1 ]. The exceptionally low biodegradability of fossil-based plastics, together with the massive production scale associated with the plastic market over the past 60 years, has generated a huge accumulation of plastics in landfills and the oceans [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

Proteins from Agri-Food Industrial Biowastes or Co-Products and Their Applications as Green Materials

Álvarez‐Castillo¹,

Félix²,

Bengoechea³

et al. 2021

Foods

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A great amount of biowastes, comprising byproducts and biomass wastes, is originated yearly from the agri-food industry. These biowastes are commonly rich in proteins and polysaccharides and are mainly discarded or used for animal feeding. As regulations aim to shift from a fossil-based to a bio-based circular economy model, biowastes are also being employed for producing bio-based materials. This may involve their use in high-value applications and therefore a remarkable revalorization of those resources. The present review summarizes the main sources of protein from biowastes and co-products of the agri-food industry (i.e., wheat gluten, potato, zein, soy, rapeseed, sunflower, protein, casein, whey, blood, gelatin, collagen, keratin, and algae protein concentrates), assessing the bioplastic application (i.e., food packaging and coating, controlled release of active agents, absorbent and superabsorbent materials, agriculture, and scaffolds) for which they have been more extensively produced. The most common wet and dry processes to produce protein-based materials are also described (i.e., compression molding, injection molding, extrusion, 3D-printing, casting, and electrospinning), as well as the main characterization techniques (i.e., mechanical and rheological properties, tensile strength tests, rheological tests, thermal characterization, and optical properties). In this sense, the strategy of producing materials from biowastes to be used in agricultural applications, which converge with the zero-waste approach, seems to be remarkably attractive from a sustainability prospect (including environmental, economic, and social angles). This approach allows envisioning a reduction of some of the impacts along the product life cycle, contributing to tackling the transition toward a circular economy.

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Recent advances in the sustainable design and applications of biodegradable polymers

Cited by 294 publications

References 131 publications

Evaluation of Biodegradable PVA-Based 3D Printed Carriers during Dissolution

Evaluation of Biodegradable PVA-Based 3D Printed Carriers during Dissolution

Biobased Polyurethane Composite Foams Reinforced with Plum Stones and Silanized Plum Stones

Proteins from Agri-Food Industrial Biowastes or Co-Products and Their Applications as Green Materials

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