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Journal articles on the topic 'Biopolymers – Biodegradation'

Author: Grafiati

Published: 4 June 2021

Last updated: 14 February 2022

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1

Irfan, Sayed Ameenuddin, Babar Azeem, Kashif Irshad, et al. "Machine Learning Model for Nutrient Release from Biopolymers Coated Controlled-Release Fertilizer." Agriculture 10, no. 11 (2020): 538. http://dx.doi.org/10.3390/agriculture10110538.

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Recent developments in the controlled-release fertilizer (CRF) have led to the new modern agriculture industry, also known as precision farming. Biopolymers as encapsulating agents for the production of controlled-release fertilizers have helped to overcome many challenging problems such as nutrients’ leaching, soil degradation, soil debris, and hefty production cost. Mechanistic modeling of biopolymers coated CRF makes it challenging due to the complicated phenomenon of biodegradation. In this study, a machine learning model is developed utilizing Gaussian process regression to predict the nu

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2

Weal, Stephanie, Sheree Anderson, Ross Anderson, Trevor Stuthridge, and Alan Fernyhough. "Environmentally Intelligent Biocomposites." Advanced Materials Research 29-30 (November 2007): 255–58. http://dx.doi.org/10.4028/www.scientific.net/amr.29-30.255.

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Composites made from wood residues and biomasses, together with either conventional polymers such as polypropylene (PP) and their recyclate streams or with the new emerging biopolymers such as polylactic acid (PLA), were compounded and injection moulded. Mechanical properties and biodegradation analyses were undertaken. The addition of wood flour/sander dust (SD) and wood fibres (WF), to the PP, with suitable compatibilizer, increased the flexural and tensile modulus and strength, indicating a good bond between the fibres and matrix. The tensile and flexural strengths were decreased with the a

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3

Abioye, Abiodun Ayodeji, Oreofe Praise Oluwadare, and Oluwabunmi Pamilerin Abioye. "Environmental Impact on Biodegradation Speed and Biodegradability of Polyethylene and Ipomoea Batatas Starch Blend." International Journal of Engineering Research in Africa 41 (February 2019): 145–54. http://dx.doi.org/10.4028/www.scientific.net/jera.41.145.

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All over the world, even in developing countries, plastics have quickly become one of the most common things found around. Unsurprisingly, this has caused a major waste management problem, particularly because synthetic polymers do not break down and degrade like organic waste. As a result, an alternative is being sought out in biopolymers. This study explores the suitability of a biopolymer blend;Ipomoea batatasmixed with low density polyethylene (LDPE) at various compositions. Biodegradation of this biopolymer blend was observed periodically when produced samples ofIpomoea batatas/LDPE were

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Silva, Desiree Lameo, Larissa Oliveira Paulista, Pedro Henrique Presumido, et al. "Influence of Oat Hulls on Biodegradation of Biopolymer from Polylactic Acid." U.Porto Journal of Engineering 6, no. 1 (2020): 1–10. http://dx.doi.org/10.24840/2183-6493_006.001_0001.

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The production of biopolymers has been shown to be one of the most viable alternatives for the reduction of the use of conventional plastics. The oat hulls are a by-product with great ability to be incorporated into the production of biopolymers since it is a lignocellulosic compound. The lignin present in its composition can improve the strength of the material, however, it can also hamper its degradation. The aim of this study was to evaluate the degradation levels of composites produced from starch and polylactic acid with absence (T1) and presence of oat hulls (T2) through the Sturm test.

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Mohan, TP, Kay Devchand, and K. Kanny. "Barrier and biodegradable properties of corn starch-derived biopolymer film filled with nanoclay fillers." Journal of Plastic Film & Sheeting 33, no. 3 (2016): 309–36. http://dx.doi.org/10.1177/8756087916682553.

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The objective of this work is to study the effect of nanoclay fillers on the biodegradation and barrier properties of corn starch polymer-based biofilm. Starch derived from corn plant source was used to prepare a biofilm by plasticization method. The barrier properties, namely, water absorption, moisture permeation, oxygen permeation and swelling of unfilled and nanoclay-filled corn starch biofilms were examined. The results indicate: ∼22% reduced water absorption, 40% reduced moisture uptake, 30% reduced oxygen permeation and 31% reduced swelling for 2–3 wt.% nanoclay-filled biofilm, when com

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Khan, Elena, Kadir Ozaltin, Andres Bernal-Ballen, and Antonio Di Martino. "Renewable Mixed Hydrogels Based on Polysaccharide and Protein for Release of Agrochemicals and Soil Conditioning." Sustainability 13, no. 18 (2021): 10439. http://dx.doi.org/10.3390/su131810439.

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The study deals with the combination of biopolymers to develop hydrogels intended for agriculture application. The aim is to propose a renewable and eco-compatible solution to enhance agrochemicals and water efficiency and contribute to maintaining soil fertility. We developed a set of hydrogels based on casein and chitosan for water retention and release of agrochemicals, in particular nitrogen fertilizer urea. The weight ratio of biopolymers, from 0.5 to 2, was investigated to understand the influence of their content on the morphology, swelling, swelling-drying cycles, and water retention i

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Boey, Jet Yin, Lydia Mohamad, Yong Sen Khok, Guan Seng Tay, and Siti Baidurah. "A Review of the Applications and Biodegradation of Polyhydroxyalkanoates and Poly(lactic acid) and Its Composites." Polymers 13, no. 10 (2021): 1544. http://dx.doi.org/10.3390/polym13101544.

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Overconsumption of plastic goods and improper handling of petroleum-derived plastic waste have brought a plethora of negative impacts to the environment, ecosystem and human health due to its recalcitrance to degradation. These drawbacks become the main driving force behind finding biopolymers with the degradable properties. With the advancement in biopolymer research, polyhydroxyalkanoate (PHA) and poly(lacyic acid) (PLA) and its composites have been alluded to as a potential alternative to replace the petrochemical counterpart. This review highlights the current synthesis process and applica

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Majeed, Zahid, Nur Kamila Ramli, Nurlidia Binti Mansor, and Zakaria Man. "Lignin Loading Effect on Biodegradability and Nitrogen Release Properties of Urea Modified Tapioca Starch in Wet Soil." Key Engineering Materials 594-595 (December 2013): 798–802. http://dx.doi.org/10.4028/www.scientific.net/kem.594-595.798.

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Plant based biopolymers are abundantly and easily available naturally biodegradable raw materials to prepare slow release nitrogen technologies. To test the lignin loading effect on biodegradability of the slow release fertilizer (SRF) and nitrogen release applications, a pot experiment under real soil conditions was conducted. Lignin at different loading percentages 5%, 10%, 15% and 20% were mixed with urea-modified tapioca starch acting as slow release fertilizer (SRF). Increasing the percentage of lignin to starch reduced the weight loss with improved nitrogen slow release properties in wet

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9

Castellani, Francesco, Alessandro Esposito, Vitale Stanzione, and Roberto Altieri. "Measuring the Biodegradability of Plastic Polymers in Olive-Mill Waste Compost with an Experimental Apparatus." Advances in Materials Science and Engineering 2016 (2016): 1–7. http://dx.doi.org/10.1155/2016/6909283.

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The use of biodegradable polymers is spreading in agriculture to replace those materials derived from petroleum, thus reducing the environmental concerns. However, to issue a significant assessment, biodegradation rate must be measured in case-specific standardized conditions. In accordance with ISO 14855-1, we designed and used an experimental apparatus to evaluate the biodegradation rate of three biopolymers based on renewable resources, two poly(ε-caprolactone) (PCL) composites, and a compatibilized polylactic acid and polybutyrate (PLA/PBAT) blend. Biodegradation tests were carried out und

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Hasan, SM Kamrul, S. Zainuddin, J. Tanthongsack, MV Hosur, and L. Allen. "A study of poly (3-hydroxybutyrate-co-3-hydroxyvalerate) biofilms’ thermal and biodegradable properties reinforced with halloysite nanotubes." Journal of Composite Materials 52, no. 23 (2018): 3199–207. http://dx.doi.org/10.1177/0021998318763246.

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The aim of this study is to investigate and optimize the performance of a promising biopolymer, poly (3-hydroxybutyrate-co-3-hydroxyvalerate) which can potentially replace non-biodegradable synthetic polymers derived from toxic petroleum products. Poly (3-hydroxybutyrate-co-3-hydroxyvalerate) biofilms were prepared using solvent casting method, and its thermal properties were determined using thermogravimetric and differential scanning calorimetry techniques. Also, the durability and biodegradability of these films were studied by keeping the samples in water and Alabama soil conditions for va

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López-Moreno, Ana, Alfonso Torres-Sánchez, Inmaculada Acuña, Antonio Suárez, and Margarita Aguilera. "Representative Bacillus sp. AM1 from Gut Microbiota Harbor Versatile Molecular Pathways for Bisphenol A Biodegradation." International Journal of Molecular Sciences 22, no. 9 (2021): 4952. http://dx.doi.org/10.3390/ijms22094952.

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Human gut microbiota harbors numerous microbial species with molecular enzymatic potential that impact on the eubiosis/dysbiosis and health/disease balances. Microbiota species isolation and description of their specific molecular features remain largely unexplored. In the present study, we focused on the cultivation and selection of species able to tolerate or biodegrade the endocrine disruptor bisphenol A (BPA), a xenobiotic extensively found in food plastic containers. Chemical xenobiotic addition methods for the directed isolation, culturing, Whole Genome Sequencing (WGS), phylogenomic ide

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12

Ilyas, R. A., S. M. Sapuan, M. M. Harussani, et al. "Polylactic Acid (PLA) Biocomposite: Processing, Additive Manufacturing and Advanced Applications." Polymers 13, no. 8 (2021): 1326. http://dx.doi.org/10.3390/polym13081326.

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Over recent years, enthusiasm towards the manufacturing of biopolymers has attracted considerable attention due to the rising concern about depleting resources and worsening pollution. Among the biopolymers available in the world, polylactic acid (PLA) is one of the highest biopolymers produced globally and thus, making it suitable for product commercialisation. Therefore, the effectiveness of natural fibre reinforced PLA composite as an alternative material to substitute the non-renewable petroleum-based materials has been examined by researchers. The type of fibre used in fibre/matrix adhesi

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Polman, Emma M. N., Gert-Jan M. Gruter, John R. Parsons, and Albert Tietema. "Comparison of the aerobic biodegradation of biopolymers and the corresponding bioplastics: A review." Science of The Total Environment 753 (January 2021): 141953. http://dx.doi.org/10.1016/j.scitotenv.2020.141953.

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Terekhov, S. S., I. V. Smirnov, O. G. Shamborant, et al. "Excessive Labeling Technique Provides a Highly Sensitive Fluorescent Probe for Real-time Monitoring of Biodegradation of Biopolymer Pharmaceuticals in vivo." Acta Naturae 6, no. 4 (2014): 54–59. http://dx.doi.org/10.32607/20758251-2014-6-4-54-59.

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Recombinant proteins represent a large sector of the biopharma market. Determination of the main elimination pathways raises the opportunities to significantly increase their half-lives in vivo. However, evaluation of biodegradation of pharmaceutical biopolymers performed in the course of pre-clinical studies is frequently complicated. Noninvasive pharmacokinetic and biodistribution studies in living organism are possible using proteins conjugated with near-infrared dyes. In the present study we designed a highly efficient probe based on fluorescent dye self-quenching for monitoring of in vivo

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15

Tábi, Tamás, Ferenc Tuba, and László Oláh. "Investigation of Time-Dependent Behavior of Starch-Based, Injection Molded Biodegradable Polymer." Materials Science Forum 589 (June 2008): 281–86. http://dx.doi.org/10.4028/www.scientific.net/msf.589.281.

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Nowadays as a result of the increasing environmental friendly consciousness and the decreasing oil reserves, natural origin based materials are developed. These materials are not only based on renewable, natural resources, but capable of biodegradation in compost. These biodegradable polymers (biopolymers) can be inserted into the nature’s recycling process. One of the most important biopolymers is starch. Starch can be processed like a thermoplastic material by adding plasticizers, creating the so called thermoplastic starch. However the price of starch is rather low, it has certain drawbacks

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16

Folino, Adele, Aimilia Karageorgiou, Paolo S. Calabrò, and Dimitrios Komilis. "Biodegradation of Wasted Bioplastics in Natural and Industrial Environments: A Review." Sustainability 12, no. 15 (2020): 6030. http://dx.doi.org/10.3390/su12156030.

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The problems linked to plastic wastes have led to the development of biodegradable plastics. More specifically, biodegradable bioplastics are the polymers that are mineralized into carbon dioxide, methane, water, inorganic compounds, or biomass through the enzymatic action of specific microorganisms. They could, therefore, be a suitable and environmentally friendly substitute to conventional petrochemical plastics. The physico-chemical structure of the biopolymers, the environmental conditions, as well as the microbial populations to which the bioplastics are exposed to are the most influentia

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17

Majeed, Zahid, Nur Kamila Ramli, Nurlidia Mansor, and Zakaria Man. "Starch Biodegradation in a Lignin Modified Slow Release Fertilizer: Effect of Thickness." Applied Mechanics and Materials 625 (September 2014): 830–33. http://dx.doi.org/10.4028/www.scientific.net/amm.625.830.

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Biopolymers and their modified blends are naturally biodegradable materials being intensively used in control nutrient release formulations. Material biodegradability varies with thickness which further effect natural decay when applied in soil. Preliminary study was conducted for a urea-nitrogen incorporated slow release fertilizer (SRF) prepared with 0.27mm, 0.54mm and 1.03mm thickness. The starch biodegradation was decreased with increased in thickness both in non-sterile flooded soil (NSF) and sterile flooded soil (SF). NSF soil data was corrected with SF soil (as control) showed improved

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18

Hernández-García, Eva, María Vargas, Chelo González-Martínez, and Amparo Chiralt. "Biodegradable Antimicrobial Films for Food Packaging: Effect of Antimicrobials on Degradation." Foods 10, no. 6 (2021): 1256. http://dx.doi.org/10.3390/foods10061256.

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The environmental problem generated by the massive consumption of plastics makes necessary the developing of biodegradable antimicrobial materials that can extend food shelf-life without having a negative impact on the environment. The current situation regarding the availability of biodegradable food packaging materials has been analysed, as well as different studies where antimicrobial compounds have been incorporated into the polymer matrix to control the growth of pathogenic or spoilage bacteria. Thus, the antimicrobial activity of active films based on different biodegradable polymers and

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19

Zarzycki, Paweł K., Lucyna Lewandowska, Bożena Fenert, Krzysztof Piaskowski, and Janusz Kobaka. "Investigation of Hybrid Methods for Elimination of Brilliant Blue Dye from Water Phase Using Various Nanomaterials Combined with Activated Sludge and Duckweed." Nanomaterials 11, no. 7 (2021): 1747. http://dx.doi.org/10.3390/nano11071747.

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The main goal of this experimental work is screening of different natural and synthetic nanomaterials and biopolymers that may improve elimination of stable micropollutants from water phase. In this work, as a target chemical acting as the micropollutant molecule, the Brilliant Blue (BB) dye was selected. We tested different active matrices dispersed in water phase including activated carbon (AC), lyophilized graphene oxide (GO), β-cyclodextrin (CD), raw dandelion pappus (DP), microcrystalline cellulose(MC), and raw pine pollen (PP), as well as two types of Egyptian Blue mineral pigments (EB1

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Pavlovskaya, N. E., I. V. Gorkova, A. Yu Gavrilova, and I. N. Gagarina. "Study of the Effect of Composite Fillers on the Rheological Properties of Polymers to Create a Biodegradable Film." Ecology and Industry of Russia 24, no. 3 (2020): 29–33. http://dx.doi.org/10.18412/1816-0395-2020-3-29-33.

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The modern aspects of some rheological characteristics of polymeric materials obtained using starch of substandard wheat grains and sugar beet pulp are considered. The main factors affecting mixing are discussed, which ensures high-quality dispersion and distribution of particles in the matrix in order to obtain a homogeneous mixture and the required properties of biopolymers. A study on the selection of the percentage ratio of fillers (starch and sugar beet pulp) allowed us to develop compositions for biodegradable films. The main objective of the research is to reduce the biodegradation peri

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Talanyuk, V., A. Shadrin, M. Iurzhenko, N. Korab, and M. Menzheres. "WELDING PROCESS AND FEATURES OF MICROSTRUCTURE OF WELDED JOINTS OF BIOPOLYMERS." Innovative Solution in Modern Science 1, no. 37 (2020): 48. http://dx.doi.org/10.26886/2414-634x.1(37)2020.4.

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Polymers and biopolymers in particular are increasingly used in various sectors of the economy and more recently biopolymers replace traditional polymers in many applications. The problem of polymeric materials recycling can be solved by designing products that will be easy to recycle. In fact, biodegradation is the consistent breaking of chemical links of a polymer molecular chain under the action of microorganisms. Destroying a polymer, bacteria, fungi or algae use the remnants of its molecules as a source of vital organic compounds as well as energy. Usually biodegradation occurs in an aque

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Ladiè, Riccardo, Cesare Cosentino, Irene Tagliaro, Carlo Antonini, Giulio Bianchini, and Sabrina Bertini. "Supramolecular Structuring of Hyaluronan-Lactose-Modified Chitosan Matrix: Towards High-Performance Biopolymers with Excellent Biodegradation." Biomolecules 11, no. 3 (2021): 389. http://dx.doi.org/10.3390/biom11030389.

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Non-covalent interactions in supramolecular chemistry provide useful systems to understand biological processes, and self-assembly systems are suitable assets to build-up innovative products for biomedical applications. In this field, polyelectrolyte complexes are interesting, especially when polysaccharides are involved, due to their non-toxicity and bio-absorbability. In this work, we investigated a polyelectrolyte formed by hyaluronic acid (HA), a negatively charged linear polysaccharide, with Chitlac (Ch), a positively charged lactose-modified chitosan. The aim of the study was the investi

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Kliem, Silvia, Marc Kreutzbruck, and Christian Bonten. "Review on the Biological Degradation of Polymers in Various Environments." Materials 13, no. 20 (2020): 4586. http://dx.doi.org/10.3390/ma13204586.

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Biodegradable plastics can make an important contribution to the struggle against increasing environmental pollution through plastics. However, biodegradability is a material property that is influenced by many factors. This review provides an overview of the main environmental conditions in which biodegradation takes place and then presents the degradability of numerous polymers. Polylactide (PLA), which is already available on an industrial scale, and the polyhydroxyalkanoates polyhydroxybutyrate (PHB) and polyhydroxybutyrate-co-valerate (PHBV), which are among the few plastics that have bee

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Xu, Ran, Li Ching Yong, Yong Giak Lim, and Jeffrey Philip Obbard. "Use of slow-release fertilizer and biopolymers for stimulating hydrocarbon biodegradation in oil-contaminated beach sediments." Marine Pollution Bulletin 51, no. 8-12 (2005): 1101–10. http://dx.doi.org/10.1016/j.marpolbul.2005.02.037.

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Fajardo, Carmen, Alba Blánquez, Gabriela Domínguez, et al. "Assessment of Sustainability of Bio Treated Lignocellulose-Based Oleogels." Polymers 13, no. 2 (2021): 267. http://dx.doi.org/10.3390/polym13020267.

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The development of biological strategies to obtain new high-added value biopolymers from lignocellulosic biomass is a current challenge for scientific community. This study evaluates the biodegradability and ecotoxicity of new formulated oleogels obtained from fermented agricultural residues with Streptomyces, previously reported to show improved rheological and tribological characteristics compared to commercial mineral lubricants. Both new oleogels exhibited higher biodegradation rates than the commercial grease. Classical ecotoxicological bioassays using eukaryotic organisms (Lactuca sativa

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Mastalerz, Conrad, Isabelle Vroman, Xavier Coqueret, and Sébastien Alix. "Effects of Electron Beam Irradiation on 3D-Printed Biopolymers for Bone Tissue Engineering." Journal of Composites Science 5, no. 7 (2021): 182. http://dx.doi.org/10.3390/jcs5070182.

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Implanting scaffolds designed for the regeneration or the replacement of bone tissue damaged by diseases and injuries requires specially designed biomaterials that promote cell adhesion. However, the biodegradation rate of these scaffolds based on a single material is uniform. Four-dimensional printing appears to be a promising method to control this aspect by changing the shape and/or the intrinsic properties of 3D-printed objects under the influence of external stimuli. Two main classes of biomaterials and biocomposites based on biopolyesters, namely poly(lactic acid) (PLA) and poly(caprolac

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Šuput, Danijela, Senka Popović, Nevena Hromiš, and Jovana Ugarković. "Degradable packaging materials: Sources, application and decomposition routes." Journal on Processing and Energy in Agriculture 25, no. 2 (2021): 37–42. http://dx.doi.org/10.5937/jpea25-30971.

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There are many biodegradable and recyclable packaging materials available, alternatives for plastics: paper and cardboard; biodegradable polyethene (degradable due to additives incorporated during production, whose role is to lead to the polyethylene breakdown into CO2, H2O, biomass and minerals when in landfill) and biodegradable plastic (made from renewable biomass-biopolymers in a relatively energy-efficient process). The decomposition routes of degradable materials are reflected in the degradation for which realization a physico-chemical stimulus is required and biodegradation for which mi

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Alven, Sibusiso, та Blessing Atim Aderibigbe. "Fabrication of Hybrid Nanofibers from Biopolymers and Poly (Vinyl Alcohol)/Poly (ε-Caprolactone) for Wound Dressing Applications". Polymers 13, № 13 (2021): 2104. http://dx.doi.org/10.3390/polym13132104.

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The management of chronic wounds is challenging. The factors that impede wound healing include malnutrition, diseases (such as diabetes, cancer), and bacterial infection. Most of the presently utilized wound dressing materials suffer from severe limitations, including poor antibacterial and mechanical properties. Wound dressings formulated from the combination of biopolymers and synthetic polymers (i.e., poly (vinyl alcohol) or poly (ε-caprolactone) display interesting properties, including good biocompatibility, improved biodegradation, good mechanical properties and antimicrobial effects, pr

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Savina, Irina N., Mohamed Zoughaib, and Abdulla A. Yergeshov. "Design and Assessment of Biodegradable Macroporous Cryogels as Advanced Tissue Engineering and Drug Carrying Materials." Gels 7, no. 3 (2021): 79. http://dx.doi.org/10.3390/gels7030079.

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Cryogels obtained by the cryotropic gelation process are macroporous hydrogels with a well-developed system of interconnected pores and shape memory. There have been significant recent advancements in our understanding of the cryotropic gelation process, and in the relationship between components, their structure and the application of the cryogels obtained. As cryogels are one of the most promising hydrogel-based biomaterials, and this field has been advancing rapidly, this review focuses on the design of biodegradable cryogels as advanced biomaterials for drug delivery and tissue engineering

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Mohamed, Mohamed H., Chukwuemeka Ajaero, Dena W. McMartin, et al. "Solubilized Chitosan Biopolymers for Sequestration of Organic Acids in Aquatic Environments after Biodegradation in a Constructed Wetland Treatment System." International Journal of Technology 9, no. 6 (2018): 1140. http://dx.doi.org/10.14716/ijtech.v9i6.2301.

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Obruca, Stanislav, Ivana Marova, and Lucy Vojtova. "Biodegradation of polyether‐polyol‐based polyurethane elastomeric films: influence of partial replacement of polyether polyol by biopolymers of renewable origin." Environmental Technology 32, no. 9 (2011): 1043–52. http://dx.doi.org/10.1080/09593330.2010.523903.

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Galil, N. I., A. Schwartz-Mittelman, and O. Saroussi-Zohar. "Biomass deflocculation and process disturbances exerted by phenol induced transient load conditions." Water Science and Technology 38, no. 8-9 (1998): 105–12. http://dx.doi.org/10.2166/wst.1998.0796.

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Turbidity and relatively high concentrations of polysaccharides (biopolymers), indicating deflocculation of suspended biomass, could be observed as a result of phenol supplied in transient load conditions. The importance of preliminary acclimation could be observed in terms of the phenol removal rates at relatively low transient loading of phenol, up to 500 mg/l. As shock intensity increased to 1,000 and 1,500 mg/l, the acclimated reactors did not show relevant differences when compared to either partially acclimated or on-acclimated reactors. Transient load conditions created by phenol caused

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Lefebvre, D., V. Dossat-Létisse, X. Lefebvre, and E. Girbal-Neuhauser. "Fate of organic matter during moderate heat treatment of sludge: kinetics of biopolymer and hydrolytic activity release and impact on sludge reduction by anaerobic digestion." Water Science and Technology 69, no. 9 (2014): 1828–33. http://dx.doi.org/10.2166/wst.2014.083.

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Temperature-phased anaerobic digestion with a 50–70 °C pre-treatment is widely proposed for sludge. Here, such a sludge pre-treatment (65 °C) was studied against the physical, enzymatic and biodegradation processes. The soluble and particulate fractions were analysed in terms of biochemical composition and hydrolytic enzymatic activities. Two kinetics of organic matter solubilisation were observed: a rapid transfer of the weak-linked biopolymers to the water phase, including sugars, proteins or humic acid-like substances, to the water phase, followed by a slow and long-term solubilisation of p

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Matveeva, V. G., M. U. Khanova, L. V. Antonova, and L. S. Barbarash. "Fibrin – a promising material for vascular tissue engineering." Russian Journal of Transplantology and Artificial Organs 22, no. 1 (2020): 196–208. http://dx.doi.org/10.15825/1995-1191-2020-1-196-208.

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This review looks at the use of fibrin in vascular tissue engineering (VTE). Autologous fibrin is one of the most affordable biopolymers because it can be obtained from peripheral blood by simple techniques. A description and comparative analysis of the methods and approaches for producing fibrin gel is provided. The ability of fibrin to promote cell attachment and migration, survival and angiogenesis, to accumulate growth factors and release them in a controlled manner, are unique and extremely useful in VTE. Fibrin gels can serve as a three-dimensional matrix molded in different sizes and sh

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Findrik Balogová, Alena, Marianna Trebuňová, Gabriela Ižaríková, et al. "In Vitro Degradation of Specimens Produced from PLA/PHB by Additive Manufacturing in Simulated Conditions." Polymers 13, no. 10 (2021): 1542. http://dx.doi.org/10.3390/polym13101542.

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Biopolymers have been the most frequently studied class of materials due to their biodegradability, renewability, and sustainability. The main aim of the presented study was to evaluate degradability of the polymer material blend which was immersed in different solutions. The present study included the production of three different mixtures of polylactic acid and polyhydroxybutyrate, each with a different content of triacetin, which was used as a plasticiser. Applying 3D printing technology, two types of cylindrical specimen were produced, i.e., a solid and a porous specimen, and subjected to

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Liu, Qichun, Fang Wang, Zhenggui Gu, Qingyu Ma, and Xiao Hu. "Exploring the Structural Transformation Mechanism of Chinese and Thailand Silk Fibroin Fibers and Formic-Acid Fabricated Silk Films." International Journal of Molecular Sciences 19, no. 11 (2018): 3309. http://dx.doi.org/10.3390/ijms19113309.

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Silk fibroin (SF) is a protein polymer derived from insects, which has unique mechanical properties and tunable biodegradation rate due to its variable structures. Here, the variability of structural, thermal, and mechanical properties of two domesticated silk films (Chinese and Thailand B. Mori) regenerated from formic acid solution, as well as their original fibers, were compared and investigated using dynamic mechanical analysis (DMA) and Fourier transform infrared spectrometry (FTIR). Four relaxation events appeared clearly during the temperature region of 25 °C to 280 °C in DMA curves, an

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Sigurbjörnsdóttir, Margrét Auður, Starri Heiðmarsson, Anna Rut Jónsdóttir, and Oddur Vilhelmsson. "Novel bacteria associated with Arctic seashore lichens have potential roles in nutrient scavenging." Canadian Journal of Microbiology 60, no. 5 (2014): 307–17. http://dx.doi.org/10.1139/cjm-2013-0888.

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While generally described as a bipartite mutualistic association between fungi and algae or cyanobacteria, lichens also host diverse and heretofore little explored communities of nonphototrophic endolichenic bacteria. The composition and possible roles of these bacterial communities in the lichen symbiotic association constitute an emerging field of research. Saxicolous (rock-dwelling) seashore lichens present an unusual environment, characterized by rapid fluctuations in temperature, salinity, exposure to solar radiation, etc. The present study focuses on the bacterial biota associated with 4

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Abdelrady, Ahmed, Saroj Sharma, Ahmed Sefelnasr, and Maria Kennedy. "The Fate of Dissolved Organic Matter (DOM) During Bank Filtration under Different Environmental Conditions: Batch and Column Studies." Water 10, no. 12 (2018): 1730. http://dx.doi.org/10.3390/w10121730.

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Dissolved organic matter (DOM) in source water highly influences the removal of different contaminants and the dissolution of aquifer materials during bank filtration (BF). The fate of DOM during BF processes under arid climate conditions was analysed by conducting laboratory—scale batch and column studies under different environmental conditions with varying temperature (20–30 °C), redox, and feed water organic matter composition. The behaviour of the DOM fractions was monitored using various analytical techniques: fluorescence excitation-emission matrix spectroscopy coupled with parallel fac

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Marin, Maria Minodora, Mădălina Georgiana Albu Kaya, Horia Iovu, et al. "Obtaining, Evaluation, and Optimization of Doxycycline-Loaded Microparticles Intended for the Local Treatment of Infectious Arthritis." Coatings 10, no. 10 (2020): 990. http://dx.doi.org/10.3390/coatings10100990.

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Compared to the classical systemic administration, the local drug release has some advantages, such as lack of systemic toxicity and associated side effects, increased patient compliance, and a low rate of bacterial resistance. Biopolymers are widely used to design sustained drug delivery systems and biomaterials for tissue engineering. Type II collagen is the indispensable component in articular cartilage and plays a critical role in the growth and proliferation process of chondrocytes. Thus, type II collagen has drawn more attention and interest in the treatment and research of the cartilage

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Azimi, Bahareh, Homa Maleki, Lorenzo Zavagna, et al. "Bio-Based Electrospun Fibers for Wound Healing." Journal of Functional Biomaterials 11, no. 3 (2020): 67. http://dx.doi.org/10.3390/jfb11030067.

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Being designated to protect other tissues, skin is the first and largest human body organ to be injured and for this reason, it is accredited with a high capacity for self-repairing. However, in the case of profound lesions or large surface loss, the natural wound healing process may be ineffective or insufficient, leading to detrimental and painful conditions that require repair adjuvants and tissue substitutes. In addition to the conventional wound care options, biodegradable polymers, both synthetic and biologic origin, are gaining increased importance for their high biocompatibility, biode

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Maeng, S. K., S. K. Sharma, A. Magic-Knezev, and G. Amy. "Fate of effluent organic matter (EfOM) and natural organic matter (NOM) through riverbank filtration." Water Science and Technology 57, no. 12 (2008): 1999–2007. http://dx.doi.org/10.2166/wst.2008.613.

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Understanding the fate of effluent organic matter (EfOM) and natural organic matter (NOM) through riverbank filtration is essential to assess the impact of wastewater effluent on the post treatment requirements of riverbank filtrates. Furthermore, their fate during drinking water treatment can significantly determine the process design. The objective of this study was to characterise bulk organic matter which consists of EfOM and NOM during riverbank filtration using a suite of innovative analytical tools. Wastewater effluent-derived surface water and surface water were used as source waters i

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Wübbeler, Jan Hendrik, Nadine Bruland, Milena Wozniczka, and Alexander Steinbüchel. "Biodegradation of the xenobiotic organic disulphide 4,4′-dithiodibutyric acid by Rhodococcus erythropolis strain MI2 and comparison with the microbial utilization of 3,3′-dithiodipropionic acid and 3,3′-thiodipropionic acid." Microbiology 156, no. 4 (2010): 1221–33. http://dx.doi.org/10.1099/mic.0.036178-0.

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Application of the non-toxic 3,3′-thiodipropionic acid (TDP) and 3,3′-dithiodipropionic acid (DTDP) as precursors for the microbial production of polythioesters (PTEs), a class of biologically persistent biopolymers containing sulphur in the backbone, was successfully established previously. However, synthesis of PTEs containing 4-mercaptobutyrate (4MB) as building blocks could not be achieved. The very harmful 4MB is not used as a PTE precursor or as the carbon source for growth by any known strain. As a promising alternative, the harmless oxidized disulfide of two molecules of 4MB, 4,4′-dith

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Shevlyuk, N. N., I. Z. Gatiatullin, and A. A. Stadnikov. "Features of Reparative Histogenesis in Bioplastic Material Application." Journal of Anatomy and Histopathology 9, no. 1 (2020): 86–93. http://dx.doi.org/10.18499/2225-7357-2020-9-1-86-93.

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In modern medicine, various biocompatible materials (based on biodegradable natural biopolymers – collagen, hyaluronic acid, chitin, chitosan, etc.) are widely used, primarily for the purposes of reconstructive and plastic surgery. The development of these materials and their introduction into clinical practice is an extremely urgent task of regenerative biology and medicine. One of the most important properties of bioplastic materials is their ability to undergo biodegradation and gradually be replaced by the recipient's proper tissues. In this case, the intermediate and final metabolic produ

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Yu, Peiqiang, Hangshu Xin, Yajing Ban, and Xuewei Zhang. "Interactive Association between Biopolymers and Biofunctions in Carinata Seeds as Energy Feedstock and Their Coproducts (Carinata Meal) from Biofuel and Bio-oil Processing before and after Biodegradation: Current Advanced Molecular Spectroscopic Investigations." Journal of Agricultural and Food Chemistry 62, no. 18 (2014): 4039–47. http://dx.doi.org/10.1021/jf405809m.

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Severino, Patricia, Classius F. da Silva, Luciana N. Andrade, Daniele de Lima Oliveira, Joana Campos, and Eliana B. Souto. "Alginate Nanoparticles for Drug Delivery and Targeting." Current Pharmaceutical Design 25, no. 11 (2019): 1312–34. http://dx.doi.org/10.2174/1381612825666190425163424.

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Nanotechnology refers to the control, manipulation, study and manufacture of structures and devices at the nanometer size range. The small size, customized surface, improved solubility and multi-functionality of nanoparticles will continue to create new biomedical applications, as nanoparticles allow to dominate stability, solubility and bioavailability, as well controlled release of drugs. The type of a nanoparticle, and its related chemical, physical and morphological properties influence its interaction with living cells, as well as determine the route of clearance and possible toxic effect

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Chizhov, A. S., A. A. Ol’khov, T. V. Monakhova, L. S. Shibryaeva, and A. L. Iordanskii. "Thermooxidation and Biodegradation of Nonwoven Biopolymer Fibrous Materials." Polymer Science, Series D 11, no. 3 (2018): 339–43. http://dx.doi.org/10.1134/s1995421218030036.

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Dungani, Rudi, Ihak Sumardi, Yoyo Suhaya, et al. "Reinforcing effects of seaweed nanoparticles in agar-based biopolymer composite: Physical, water vapor barrier, mechanical, and biodegradable properties." BioResources 16, no. 3 (2021): 5118–32. http://dx.doi.org/10.15376/biores.16.3.5118-5132.

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In recent times, the indiscriminate disposal of post-consumer plastic packaging material has received global attention. There is a need to develop an alternative packaging material from bio-based polymers to reduce plastic waste pollution. This work studied the effects of loading seaweed nanoparticles into an agar matrix by analyzing the physical, mechanical, water vapor barrier, and biodegradation properties, as well as the surface morphological properties of biopolymer composite. The results showed that the addition of seaweed nanoparticles in the biopolymer matrix improved the properties of

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Boskhomdzhiev, A. P., A. P. Bonartsev, T. K. Makhina, et al. "Biodegradation kinetics of poly(3-hydroxybutyrate)-based biopolymer systems." Biochemistry (Moscow) Supplement Series B: Biomedical Chemistry 4, no. 2 (2010): 177–83. http://dx.doi.org/10.1134/s1990750810020083.

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Dewi, Asiska Permata, Erizal Zaini, and Akmal Djamaan. "MANUFACTURE OF PLASTICS FILM CONTAINING OF POLYSTIRENE, POLYCAPROLACTONE, POLY(3-HIDROKSIBUTYRATE-CO-3- HIDROXYVALERATE) AND BIODEGRADATION STUDY IN OCEAN WATER." Jurnal Riset Kimia 7, no. 2 (2014): 107. http://dx.doi.org/10.25077/jrk.v7i2.167.

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ABSTRACTThe manufacture of a biodegradable plastics film containing of polymer synthetic polystyrene(PS) and biopolymer of polycaprolactone (PCL), poly(3-hydroxybutyrate-co-3-hydroxyvalerate)[P(3HB-ko-3HV)] and biodegradation study in ocean water has been carried out. Plastics filmcontaining of PS/PCL/P(3HB-ko-3HV) produced by blending techniques followed by solventcasting with ratios were of 100/0/0, 95/5/0, 95/0/5, 90/5/5, 85/10/5, 85/5/10. This testing wasconducted based on immersion test method recommend by American Society for Testing andMaterials. Poly blend plastics film PS/PCL/P(3HB-ko

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Qudsieh, Isam Yassin. "BIODEGRADATION BEHAVIOR OF POLY(METHYL METHACRYLATE) GRAFTED SAGO STARCH BIOPOLYMER." IIUM Engineering Journal 8, no. 2 (2010): 37–45. http://dx.doi.org/10.31436/iiumej.v8i2.91.

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The graft copolymerization of poly(methyl methacrylate) (PMMA) onto sago starch (sago starch-g-PMMA) was carried out using ceric ammonium nitrate (CAN) as an initiator. PMMA was grafted onto sago starch using CAN as an initiator under nitrogen gas atmosphere. The maximum percentage of grafting (%G) was determined to be 246% at the optimum conditions. The copolymers produced were characterized by Fourier Transform Infrared Spectrophotometry (FTIR), The FTIR spectra of the copolymers clearly indicated the presence of characteristic peaks of PMMA and sago starch, which suggested that PMMA had bee

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