Bioplastic production in terms of life cycle assessment: A state-of-the-art review

Environmental Science and Ecotechnology, Год журнала: 2023, Номер 15, С. 100254 - 100254

Опубликована: Фев. 20, 2023

The current transition to sustainability and the circular economy can be viewed as a socio-technical response environmental impacts need enhance overall performance of linear production consumption paradigm. concept biowaste refineries feasible alternative petroleum has gained popularity. Biowaste become an important raw material source for developing bioproducts biofuels. Therefore, effective management systems biofuels are crucial employed pillars economy. Bioplastics, typically plastics manufactured from bio-based polymers, stand contribute more sustainable commercial plastic life cycles part in which virgin polymers made renewable or recycled materials. Various frameworks strategies utilized model illustrate additional patterns fossil fuel bioplastic feedstock prices various governments' long-term policies. This review paper highlights harmful fossil-based on environment human health, well mass eco-friendly alternatives such biodegradable bioplastics. Utilizing new types bioplastics derived resources (e.g., biowastes, agricultural wastes, microalgae) choosing appropriate end-of-life option anaerobic digestion) may right direction ensure production. Clear regulation financial incentives still required scale niche large-scale market applications with truly impact.

Язык: Английский

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Additive manufacturing of sustainable biomaterials for biomedical applications

Asian Journal of Pharmaceutical Sciences, Год журнала: 2023, Номер 18(3), С. 100812 - 100812

Опубликована: Апрель 27, 2023

Biopolymers are promising environmentally benign materials applicable in multifarious applications. They especially favorable implantable biomedical devices thanks to their excellent unique properties, including bioactivity, renewability, bioresorbability, biocompatibility, biodegradability and hydrophilicity. Additive manufacturing (AM) is a flexible intricate technology, which widely used fabricate biopolymer-based customized products structures for advanced healthcare systems. Three-dimensional (3D) printing of these sustainable applied functional clinical settings wound dressing, drug delivery systems, medical implants tissue engineering. The present review highlights recent advancements different types biopolymers, such as proteins polysaccharides, employed develop by using extrusion, vat polymerization, laser inkjet 3D techniques addition normal bioprinting four-dimensional (4D) techniques. This also incorporates the influence nanoparticles on biological mechanical performances 3D-printed scaffolds. work addresses current challenges well future developments friendly polymeric manufactured through AM Ideally, there need more focused research adequate blending biodegradable biopolymers achieving useful results targeted areas. We envision that composites have potential revolutionize sector near future.

Язык: Английский

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Emerging trends in development and application of 3D printed nanocomposite polymers for sustainable environmental solutions

European Polymer Journal, Год журнала: 2023, Номер 196, С. 112298 - 112298

Опубликована: Июль 13, 2023

Язык: Английский

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Resorbable Biomaterials Used for 3D Scaffolds in Tissue Engineering: A Review

Materials, Год журнала: 2023, Номер 16(12), С. 4267 - 4267

Опубликована: Июнь 8, 2023

This article provides a thorough overview of the available resorbable biomaterials appropriate for producing replacements damaged tissues. In addition, their various properties and application possibilities are discussed as well. Biomaterials fundamental components in tissue engineering (TE) scaffolds play critical role. They need to exhibit biocompatibility, bioactivity, biodegradability, non-toxicity, ensure ability function effectively with an host response. With ongoing research advancements medical implants, objective this review is explore recently developed implantable scaffold materials The categorization paper includes fossil-based (e.g., PCL, PVA, PU, PEG, PPF), natural or bio-based HA, PLA, PHB, PHBV, chitosan, fibrin, collagen, starch, hydrogels), hybrid PCL/PLA, PCL/PEG, PLA/PEG, PLA/PHB PCL/collagen, PCL/chitosan, PCL/starch, PLA/bioceramics). these both hard soft TE considered, particular focus on physicochemical, mechanical, biological properties. Furthermore, interactions between immune system context scaffold-driven regeneration discussed. Additionally, briefly mentions concept situ TE, which leverages self-renewal capacities affected tissues highlights crucial role played by biopolymer-based strategy.

Язык: Английский

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Parametric investigation and optimisation of mechanical properties of thick tri-material based composite of PLA-PETG-ABS 3D-printed using fused filament fabrication

Composites Part C Open Access, Год журнала: 2023, Номер 12, С. 100392 - 100392

Опубликована: Авг. 23, 2023

Tri-material and tri-layered composites find numerous applications in the biomedical, aerospace, automotive industries. However, such face challenges when fabricated through conventional methods (Electrospinning, hand lay-up, Film Casting, In-situ polymerization), as interface bond strength, strength-to-mass ratio, etc. Additive manufacturing can be used to fabricate overcome these challenges. In this study, a tri-material based 3D-printed (TM3DP) polymer composite of polylactic acid (PLA), polyethylene terephthalate glycol (PETG), acrylonitrile butadiene styrene (ABS) was successfully processed using fused filament fabrication (FFF) for first time. The is that 33.3% PLA printed first, followed by PETG, and, end, ABS so PETG sandwiched between ABS. effect FFF processing parameters on tensile properties investigated. After preliminary experiments literature review, infill density (ID), printing speed (PS), layer thickness (LT) were selected main parameters. strength (TS) strain (ℇ) outputs (responses) study. Tensile testing performed after samples Instron Universal Testing Machine (5 KN). An analysis variance (ANOVA) also check significance process results concluded significant interaction state both properties. Scanning electron microscopy (SEM) optical performed, which indicated various defects, including micropores, voids, micro / major delamination occurred conditions high LT, PS, low ID. This resulted TS 27.1 MPa ℇ 0.5 mm/mm. No defects observed under ID, highest 39.5 0.95. Finally, optimum suggested fabricating thick TM3DP samples, believed enhance ratio 16.4 % compared single solid base materials.

Язык: Английский

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Emerging Biomedical and Clinical Applications of 3D-Printed Poly(Lactic Acid)-Based Devices and Delivery Systems

Bioengineering, Год журнала: 2024, Номер 11(7), С. 705 - 705

Опубликована: Июль 11, 2024

Poly(lactic acid) (PLA) is widely used in the field of medicine due to its biocompatibility, versatility, and cost-effectiveness. Three-dimensional (3D) printing or systematic deposition PLA layers has enabled fabrication customized scaffolds for various biomedical clinical applications. In tissue engineering regenerative medicine, 3D-printed been mostly generate bone scaffolds, typically combination with different polymers ceramics. PLA’s versatility also allowed development drug-eluting constructs controlled release agents, such as antibiotics, antivirals, anti-hypertensives, chemotherapeutics, hormones, vitamins. Additionally, recently develop diagnostic electrodes, prostheses, orthoses, surgical instruments, radiotherapy devices. provided a cost-effective, accessible, safer means improving patient care through dosimetry guides, well enhancing medical education training models simulators. Overall, widespread use settings expected persistently stimulate innovation revolutionize healthcare delivery.

Язык: Английский

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3D Printable Multifunctional Electrochemical Nano‐Doped Biofilament

Advanced Functional Materials, Год журнала: 2024, Номер 34(37)

Опубликована: Апрель 15, 2024

Abstract Fused deposition modeling (FDM) represents a state‐of‐the‐art 3D printing technology that holds great promise in the field of electrochemistry as fast, in‐house, and digital fabrication method sustainable sensors. Despite progress FDM, existing practical printed sensors still require post‐printing treatment to improve their operational features, either through (electro)chemical surface activation or modification with external functional materials. Herein, novel lab‐made conductive biofilament integrated two different types metallic nanoparticles (NPs) for ready‐to‐use multiplexed electrochemical is introduced. The filament composed biodegradable polylactic acid base, polyethylene glycol dimethyl ether plasticizer, carbon black filler, nanopowder oxides bismuth copper precursor as‐printed serve multifunctional transducers direct sensitive determinations several analytes, by exploiting properties co‐existing NPs. Particularly, heavy metals (such lead, cadmium) are voltammetrically quantified amalgamation BiNPs electrogenerated from Bi 2 O 3 , while biomarkers glucose, uric acid) determined enzymatic‐free modes. Determination glucose takes advantage electrocatalytic CuO, directly oxidized at sensor.

Язык: Английский

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A comprehensive review on fillers and mechanical properties of 3D printed polymer composites

Materials Today Communications, Год журнала: 2024, Номер 40, С. 109617 - 109617

Опубликована: Июнь 21, 2024

Язык: Английский

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Challenges to Improve Extrusion‐Based Additive Manufacturing Process of Thermoplastics toward Sustainable Development

Macromolecular Rapid Communications, Год журнала: 2024, Номер 45(17)

Опубликована: Май 31, 2024

Abstract This review aims to present the different approaches lessen environmental impact of extrusion‐based additive manufacturing (MEX) process thermoplastic‐based resins and protect ecosystem. The benefits drawbacks each alternative, including use biomaterials or recycled materials as feedstock, energy efficiency, polluting emissions reduction, have been examined. First, technological option using a pellet‐fed printer was compared filament‐fed printer. Then, common biopolymers utilized in MEX applications are discussed, along with methods for improving mechanical properties associated printed products. introduction natural fillers thermoplastic biocomposite filaments proposed improve specific performance items, highlighting numerous challenges related their extrusion. Various polymers derived from recycling presented feeding raw printers reduce waste accumulation, showing inferior qualities resulting goods when products made virgin materials. Finally, consumption released into atmosphere during printing potential both aspects be controlled through material selection operating conditions.

Язык: Английский

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Polycaprolactone in Bone Tissue Engineering: A Comprehensive Review of Innovations in Scaffold Fabrication and Surface Modifications

Journal of Functional Biomaterials, Год журнала: 2024, Номер 15(9), С. 243 - 243

Опубликована: Авг. 24, 2024

Bone tissue engineering has seen significant advancements with innovative scaffold fabrication techniques such as 3D printing. This review focuses on enhancing polycaprolactone (PCL) properties through structural modifications, including surface treatments, pore architecture adjustments, and the incorporation of biomaterials like hydroxyapatite (HA). These modifications aim to improve conformation, cellular behavior, mechanical performance, particular emphasis role mesenchymal stem cells (MSCs) in bone regeneration. The also explores potential integrating nanomaterials graphene oxide (GO) further enhance biological PCL scaffolds. Future directions involve optimizing structures compositions for improved regeneration outcomes.

Язык: Английский

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