Nanotechnology-powered innovations for agricultural and food waste valorization: A critical appraisal in the context of circular economy implementation in developing nations

Process Safety and Environmental Protection, Год журнала: 2024, Номер 184, С. 477 - 491

Опубликована: Фев. 2, 2024

Язык: Английский

---

Machine learning applications for electrospun nanofibers: a review

Journal of Materials Science, Год журнала: 2024, Номер 59(31), С. 14095 - 14140

Опубликована: Июль 30, 2024

Abstract Electrospun nanofibers have gained prominence as a versatile material, with applications spanning tissue engineering, drug delivery, energy storage, filtration, sensors, and textiles. Their unique properties, including high surface area, permeability, tunable porosity, low basic weight, mechanical flexibility, alongside adjustable fiber diameter distribution modifiable wettability, make them highly desirable across diverse fields. However, optimizing the properties of electrospun to meet specific requirements has proven be challenging endeavor. The electrospinning process is inherently complex influenced by numerous variables, applied voltage, polymer concentration, solution flow rate, molecular weight polymer, needle-to-collector distance. This complexity often results in variations nanofibers, making it difficult achieve desired characteristics consistently. Traditional trial-and-error approaches parameter optimization been time-consuming costly, they lack precision necessary address these challenges effectively. In recent years, convergence materials science machine learning (ML) offered transformative approach electrospinning. By harnessing power ML algorithms, scientists researchers can navigate intricate space more efficiently, bypassing need for extensive experimentation. holds potential significantly reduce time resources invested producing wide range applications. Herein, we provide an in-depth analysis current work that leverages obtain target nanofibers. examining work, explore intersection ML, shedding light on advancements, challenges, future directions. comprehensive not only highlights processes but also provides valuable insights into evolving landscape, paving way innovative precisely engineered various Graphical abstract

Язык: Английский

---

Advancing Sustainability in Modern Polymer Processing: Strategies for Waste Resource Recovery and Circular Economy Integration

Polymers, Год журнала: 2025, Номер 17(4), С. 522 - 522

Опубликована: Фев. 17, 2025

By the late 1970s, plastics had emerged as most widely used materials globally. The discovery, development, and processing of diverse polymeric have profoundly shaped modern life driven expansion numerous industries. Given widespread interest in utilization these materials, it has become increasingly imperative to design their cycles from outset. This approach aims maximize utility while minimizing environmental footprint. review identify analyze key challenges polymer applicable both additive formative manufacturing methods, emphasizing relationship between recycling within framework sustainability. Modern techniques play a crucial role enhancing sustainability products by improving potential (with consideration type, source, additives), cost-effectiveness, carbon footprint, properties such durability, lifespan, performance, impact. It will also explore concept circular economy its integration into including extrusion, injection molding, 3D printing. Additionally, current methods are analyzed with respect effectiveness, sustainability, compatibility original materials. Moreover, discussion emphasizes benefits compared linear one exploring concepts closed-loop open-loop systems, along applications depending on material initial method employed. To ensure that humanity continues benefit striving for waste-free environment, is essential integrate principles sustainable development very beginning.

Язык: Английский

---

A review on microbes mediated resource recovery and bioplastic (polyhydroxyalkanoates) production from wastewater

Microbial Cell Factories, Год журнала: 2024, Номер 23(1)

Опубликована: Июль 1, 2024

Abstract Background Plastic is widely utilized in packaging, frameworks, and as coverings material. Its overconsumption slow degradation, pose threats to ecosystems due its toxic effects. While polyhydroxyalkanoates (PHA) offer a sustainable alternative petroleum-based plastics, their production costs present significant obstacles global adoption. On the other side, multitude of household industrial activities generate substantial volumes wastewater containing both organic inorganic contaminants. This not only poses threat but also presents opportunities get benefits from circular economy. Main body abstract Production bioplastics may be improved by using nutrients minerals feedstock for microbial fermentation. Strategies like feast-famine culture, mixed-consortia integrated processes have been developed PHA highly polluted with high loads. Various process parameters loading rate, content (volatile fatty acids), dissolved oxygen, operating pH, temperature critical roles accumulation biomass. Research advances are going on downstream recovery utilizing combination physical chemical (halogenated solvents, surfactants, green solvents) methods. review highlights recent developments upcycling resources into PHA, encompassing various strategies, processing methodologies, techno-economic analyses. Short conclusion Organic carbon nitrogen promising, cost-effective source producing bioplastic. Previous attempts focused enhancing productivity through optimizing culture systems growth conditions. However, despite technological progress, challenges persist, such low productivity, intricate processing, scalability issues, properties resulting PHA. Graphical

Язык: Английский

---

Process Integration for the Production of Bioplastic Monomer: Techno-Economic Analysis and Life-Cycle Assessment

ACS Sustainable Chemistry & Engineering, Год журнала: 2024, Номер 12(30), С. 11167 - 11180

Опубликована: Июль 11, 2024

Язык: Английский

---

Recycling Technologies for Biopolymers: Current Challenges and Future Directions

Polymers, Год журнала: 2024, Номер 16(19), С. 2770 - 2770

Опубликована: Сен. 30, 2024

Plastic pollution is a major driver of climate change that associated with biodiversity loss, greenhouse gas emissions, and negative soil, plant, animal, human health. One the solutions has been proposed currently reducing adverse effects plastic on planet replacement synthetic plastics biopolymers. The biodegradable polymers have adapted for most applications plastic. However, their use disposal present some sustainability challenges. Recycling emerges as an effective way promoting biopolymer use. In this article, we review recycling viable solution to improve biopolymers, emphasizing current types technologies employed in challenges faced adoption. Our exploration future directions conversion biopolymers into new reuse establishes connection between established continuous technological innovation, integration circular economy models, establishment strengthening collaborations among key stakeholders relevant industries necessary steps adoption, full utilization, improvement By connecting these factors, study lays foundation roadmap improved processes promote alternatives.

Язык: Английский

---

Comprehensive analysis of bioplastics: life cycle assessment, waste management, biodiversity impact, and sustainable mitigation strategies

PeerJ, Год журнала: 2024, Номер 12, С. e18013 - e18013

Опубликована: Сен. 11, 2024

Bioplastics are emerging as a promising alternative to traditional plastics, driven by the need for more sustainable options. This review article offers an in-depth analysis of entire life cycle bioplastics, from raw material cultivation manufacturing and disposal, with focus on environmental impacts at each stage. It emphasizes significance adopting agricultural practices selecting appropriate feedstock improve outcomes. The highlights detrimental effects unsustainable farming methods, such pesticide use deforestation, which can lead soil erosion, water pollution, habitat destruction, increased greenhouse gas emissions. To address these challenges, advocates efficient extraction techniques renewable energy sources, prioritizing considerations throughout production process. Furthermore, methods reducing consumption, usage, chemical inputs during implementing eco-friendly technologies. stresses importance developing robust disposal systems biodegradable materials supports recycling initiatives minimize new resources. holistic approach sustainability, including responsible cultivation, practices, effective end-of-life management. underscores evaluate potential bioplastics reduce plastic considering technological advancements, infrastructure development, consumer awareness. Future research should enhancing understanding long-term ecological impacts, advancing technology better performance compatibility. comprehensive bioplastics' footprint urgent solutions in production.

Язык: Английский

---

Synthesis, Modification, and Applications of Poly(vinyl chloride) (PVC)

Polymer-Plastics Technology and Materials, Год журнала: 2024, Номер unknown, С. 1 - 40

Опубликована: Ноя. 1, 2024

One of the polymers with biggest production volume is poly(vinyl chloride) (PVC) considering their versatility, durability, lightweight, as well low cost production, plastics have recently become an essential part everyone's daily life. However, increased and usage poses significant environmental problems because incomplete utilization, a lengthy biodegradation period, detrimental effects on living things. This study examines latest findings in PVC research, including its properties, polymerization, modification, recycling, diverse applications. It has been proposed that during along application both inorganic organic thermal stabilizers, can mitigate some basic limiting characteristics PVC. chemistry extended by vast continuous study, mainly chemical transformations this polymeric material. describes modification using different materials active modifying agent. The latter included substitutions, modifications, nucleophilic radicals, removal or dehydrochlorination, grafting polymerizations. PVC's consequences are examined, overview functionalization provided article, discussion main reactivity trends lens recycling.

Язык: Английский

---

Agro-Waste-Derived Bioplastics: Sustainable Innovations for a Circular Economy

Waste and Biomass Valorization, Год журнала: 2025, Номер unknown

Опубликована: Апрель 26, 2025

Язык: Английский

---

Sustainable bioplastics from seaweed polysaccharides: A comprehensive review

Polymers for Advanced Technologies, Год журнала: 2024, Номер 35(8)

Опубликована: Авг. 1, 2024

Abstract The use of macroalgae for food has been extensive in Asia historically. However, there a renewed interest at present due to its recognition as potential carbon capture agent and blue donor besides their utility biofuel production. Bioplastics is an umbrella term wide variety polymers that can be either biobased or biodegradable, both. Macroalgal polysaccharides inherent film‐forming capacity are exploited the bioplastics industry macroalgal polysaccharide‐based biofilms extensively used packaging compatibility ease Commercial macroalgae‐based production ongoing, with research dedicated development biodegradable/compostable suitable packing biomedicine sector. This review aims provide overview form bioplastics. Different methods biofilm formation discussed along summarizing effect plasticizers, method film formation, biodegradability. major source marine polysaccharaides agar, alginate, carrageenan, laminarin, fucoidan, ulvan. groups utilized polysaccharide derived bioplatics, namely, brown algae ( Padina pavonica, Ascophyllum nodosum, Laminaria japonica, Rugulopteryx okamurae, Sargassum natans, siliquosum, Jolyna laminarioides, Gracilaria salicornia ), green Ulva fasciata, Halimeda opuntia, Codium fragile, intestinalis, lactuca, rigida red Eucheuma cottonii, Porphyra sp., Kappaphycus alvarezii, corticata ). outcome reveals vast scope polysaccharide‐derived sustainable environment.

Язык: Английский

---