Proceedings of the 8th World Congress on New Technologies最新文献_第2页

Development Of Nanocomposites Based On PLA And Functionalized Graphene Oxide 聚乳酸与功能化氧化石墨烯纳米复合材料的研究

Proceedings of the 8th World Congress on New Technologies Pub Date : 2022-08-01 DOI: 10.11159/icnfa22.120

R. Quijada, H. Palza, Héctor Aguilar-Bolad, Remilson Cruz, Mehrdad YazdaniPedram

{"title":"Development Of Nanocomposites Based On PLA And Functionalized Graphene Oxide","authors":"R. Quijada, H. Palza, Héctor Aguilar-Bolad, Remilson Cruz, Mehrdad YazdaniPedram","doi":"10.11159/icnfa22.120","DOIUrl":"https://doi.org/10.11159/icnfa22.120","url":null,"abstract":"Extended Abstract Poly(lactic acid) (PLA), is an aliphatic polyester that comes from renewable resources and is biodegradable [1]. PLA exhibits mechanical and physical properties comparable to some petroleum-derived polymers. However, its barrier properties need to be improved so that PLA can be used in food packaging [2,3]. In this context, the preparation of PLA-based composites by adding nanomaterials as fillers is a strategy that would improve their barrier properties. Graphene oxide (GO) is an attractive material for use in the preparation of composites due to its laminar morphology, high specific surface area and high aspect ratio that favor the increase of barrier properties. This work reports the functionalization of GO with two types of aliphatic alkylamines that, due to their nature, would improve the interaction of the filler with the polymer and would facilitate its exfoliation. The two selected alkylamines differ in the extension of the aliphatic chain that could have an impact on the properties of the resulting nanocomposites. Using X-ray diffraction (XRD), the interlayer distances of graphene oxide and graphene oxides functionalized with aliphatic alkylamines, namely, octadecylamine (ODA), and decylamine (DA), were determined. The functionalized graphene oxide with ODA was designated as GO-ODA and the graphene oxide functionalized with DA was named as GO-DA.","PeriodicalId":394576,"journal":{"name":"Proceedings of the 8th World Congress on New Technologies","volume":"27 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121612402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Supported Geopolymer Adsorbents for Nutrient Removal from Urban Run-off Waters: Pilot Case Study 支持地聚合物吸附剂去除城市径流水体中的营养物质:试点案例研究

Proceedings of the 8th World Congress on New Technologies Pub Date : 2022-08-01 DOI: 10.11159/icepr22.172

T. Samarina, O. Laatikainen

{"title":"Supported Geopolymer Adsorbents for Nutrient Removal from Urban Run-off Waters: Pilot Case Study","authors":"T. Samarina, O. Laatikainen","doi":"10.11159/icepr22.172","DOIUrl":"https://doi.org/10.11159/icepr22.172","url":null,"abstract":"The new adsorbents consist of two layers and constitute a “core-shell” structure were developed and piloted in lab- and field scale. As a core layer, abundant and low-cost LECA was used, while the cover “shell” layer of geopolymers coating inert granules served as functional layer adsorbing pollutants. Two-layer structure allowed obtaining highly porous but light adsorbent granules, which may float in the near surface water layer. The approach substantially decreased a price of treatment technology due to less expenditure on functional materials on the one hand, and possible recycling potential on the other. Composite materials bind contaminants, preventing them from entering to the food chains or carrying them with hydrological flows, and repair of the natural circulation loops of elements. Since the adsorption materials were based on inorganic polymers constituting of a non-toxic aluminosilicate base, further potential applications of the material saturated with nutrients as promising slow-release fertilizers for forestry and agriculture were tested. Piloting of proposed materials in lab- and demo-scale on real matrices was carried out. The cost of adsorbents for water treatment was calculated, and cost-effective water treatment solutions based on supported adsorbents proposed.","PeriodicalId":394576,"journal":{"name":"Proceedings of the 8th World Congress on New Technologies","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126791633","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hydrophobic Nanofibrous Materials for Prevention of Postoperative Tissue Adhesions 用于预防术后组织粘连的疏水纳米纤维材料

Proceedings of the 8th World Congress on New Technologies Pub Date : 2022-08-01 DOI: 10.11159/icnfa22.143

M. Klicova, M. Krejcik, J. Rosendorf, J. Horáková

引用次数: 0

Proposing Chitosan/Snail Slime Blended Films As Sustainable Functional Masks/Patches for Cosmetics and Biomedical Applications 壳聚糖/蜗牛黏液混合膜作为化妆品和生物医学应用的可持续功能面膜/贴片

Proceedings of the 8th World Congress on New Technologies Pub Date : 2022-08-01 DOI: 10.11159/icepr22.123

J. Gubitosa, V. Rizzi, A. Agostiano, P. Fini, P. Cosma

{"title":"Proposing Chitosan/Snail Slime Blended Films As Sustainable Functional Masks/Patches for Cosmetics and Biomedical Applications","authors":"J. Gubitosa, V. Rizzi, A. Agostiano, P. Fini, P. Cosma","doi":"10.11159/icepr22.123","DOIUrl":"https://doi.org/10.11159/icepr22.123","url":null,"abstract":"Extended Abstract Due to the growing pollution problem, the use of novel sustainable and more biodegradable materials for reducing the environmental impact is needed worldwide in different fields, particularly in cosmetics and biomedicine. For this purpose, our research focused the attention on realizing Chitosan-based films blended with Snail Slime to develop functional masks or patches for potential cosmetics and biomedical applications. After preliminarily investigating their morphology, a physical and chemical characterization was performed by attaining SEM, UV-Vis, ATR-FTIR analyses, and Water Vapor Transmission Rate measurements, evidencing a quite uniform distribution of the Snail Slime inside the chitosan films. As a result, compacted and strongly cross-linked structures were observed. XRD analyses demonstrated their amorphous nature. For assessing their stability in water medium, the swelling measurements were acquired when changing the pH, ionic strength, and temperature. The antioxidant features were finally investigated by means of the ABTS assay, resulting in a boosted activity when the Snail Slime added amount was increased, occurring to be as dose dependent. [1] For further confirming these findings, the oxidation of a sulphur nucleoside, the 4-thiotymidine,","PeriodicalId":394576,"journal":{"name":"Proceedings of the 8th World Congress on New Technologies","volume":"31 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131456055","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Immobilized Biocatalysts in NSAIDs Utilization 固定化生物催化剂在非甾体抗炎药中的应用

Proceedings of the 8th World Congress on New Technologies Pub Date : 2022-08-01 DOI: 10.11159/icbb22.40

Anna Dzionek, D. Wojcieszyńska, U. Guzik

{"title":"Immobilized Biocatalysts in NSAIDs Utilization","authors":"Anna Dzionek, D. Wojcieszyńska, U. Guzik","doi":"10.11159/icbb22.40","DOIUrl":"https://doi.org/10.11159/icbb22.40","url":null,"abstract":"Extended Abstract In times of intense technological and social development, the usage of non-steroidal anti-inflammatory drugs (NSAIDs), like ibuprofen or naproxen, is continuously growing. Humans do not metabolize these kinds of compounds, and as a result, they are released into the environment in unmodified or slightly modified forms. Their accumulation in the environment may have a negative impact on living organisms [1] . By bioaugmentation of activated sludge in wastewater plants with properly designed immobilized biocatalysts, there is a solution to avoid releasing NSAIDs into the environment [2] . This study aimed to investigate the performance of immobilized Planococcus sp. S5 on a natural sponge derived from the Luffa aegyptiaca during naproxen cometabolic biodegradation to access its potential in bioremediation studies . The degradation of different naproxen doses (1, 2, 4, 6, 9, 12, or 15 mg/L) was monitored by free and immobilized bacterial cells. Bacterial cells of Planococcus sp. S5 in planktonic form were able to degrade the drug in concentration in the range of 2 - 12 mg/L during 26 - 59 days. In comparison, immobilized S5 cells on the Luffa sponge revealed the ability to degrade the full range of analyzed naproxen concentratio ns during 11- 55 days. Additionally, the analysis of Total Enzymatic Activity (TEA) showed the negative influence of increasing naproxen doses on the free and immobilized cells of the S5 strain. This study revealed the beneficial effect of immobilization on the efficiency of naproxen cometabolic degradation by Planococcus sp. S5 strain. Formed on a Luffa sponge biofilm was able to degrade higher drug doses and the lower dose, which are often omitted by free suspended cells in bioremediation systems. Observed positive influence of immobilization revealed that it would be possible to use immobilized S5 cells on natural sponge in bioremediation experiments aimed to eliminate NSAIDs from aquatic environment for long period of time and in various concentration, e ven the trace amounts. This research Poland","PeriodicalId":394576,"journal":{"name":"Proceedings of the 8th World Congress on New Technologies","volume":"58 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"134133220","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tailings-Based Engineered Barriers for Waste Containment 基于尾矿的废物控制工程屏障

Proceedings of the 8th World Congress on New Technologies Pub Date : 2022-08-01 DOI: 10.11159/icepr22.002

M. Fall

引用次数: 0

Determining Surface Energies of Nanoparticles from the Contact Angles Measured with the NanoTraPPED Method 用纳米阱法测定纳米颗粒接触角的表面能

Proceedings of the 8th World Congress on New Technologies Pub Date : 2022-08-01 DOI: 10.11159/icnfa22.114

Andrei Honciuc, O. Negru

{"title":"Determining Surface Energies of Nanoparticles from the Contact Angles Measured with the NanoTraPPED Method","authors":"Andrei Honciuc, O. Negru","doi":"10.11159/icnfa22.114","DOIUrl":"https://doi.org/10.11159/icnfa22.114","url":null,"abstract":"Extended Abstract Nanoparticle behaviour in bulk and interaction with the environment could be in part determined by their surface physicochemical properties, or surface functional groups. Characterization of the physicochemical state of the surface of nanoparticles can be important for predicting and understanding their bulk behaviour, in powders, such as dispersibility in water, or solvents, flowing ability, pelleting ability, aggregation, etc., which can be useful for many industries. In fundamental science, establishing a correlation between surface properties and nanoparticle bulk behaviour powders represents an ongoing challenge. One parameter that could give important insights into physicochemical state of the nanoparticles and their capability to interact with the environment through physical forces is the surface energy and its components. The magnitude of the surface energy can be interpreted as the ability of the surface to interact through physical forces. Surface energy can be broken down into components, such as polar, dispersive, hydrogen bonding, acid, base, etc., and their relative magnitude describes the preferred way, following the principles of independent action, through which a surface can interact with a solvent, an adsorbate, etc.[1]. For macroscopic surfaces, the surface energy components can be trivially determined by measuring the contact angles of several solvents and with the help of existing surface energy models, such as Owens-Wendt-Rabel-Kaelble OWRK (dispersive and polar), van Oss-Chaudhury-Good (OCG) (dispersive, acid and base); extended Fowkes","PeriodicalId":394576,"journal":{"name":"Proceedings of the 8th World Congress on New Technologies","volume":"176 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"113973046","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Comparison of Effectiveness of Cl2 /UV and PDS/Fe Advanced Oxidation Processes in Removing Diclofenac from the Aquatic Environment Cl2 /UV和PDS/Fe深度氧化法去除水中双氯芬酸的效果比较

Proceedings of the 8th World Congress on New Technologies Pub Date : 2022-08-01 DOI: 10.11159/icepr22.129

Michał Nowakowski, I. Rykowska, R. Wolski, P. Andrzejewski

{"title":"Comparison of Effectiveness of Cl2 /UV and PDS/Fe Advanced Oxidation Processes in Removing Diclofenac from the Aquatic Environment","authors":"Michał Nowakowski, I. Rykowska, R. Wolski, P. Andrzejewski","doi":"10.11159/icepr22.129","DOIUrl":"https://doi.org/10.11159/icepr22.129","url":null,"abstract":"The presence of many anthropogenic substances, including drugs, is a big problem for the environment. Many medicinal substances can have a negative effect on the natural environment. Therefore, methods of removing these substances from the environment are being sought. The so-called advanced oxidation processes can be useful in removing drugs from the aquatic environment. This work compares the effectiveness of two methods, classified as advanced oxidation processes, in removing diclofenac, a popular drug from the group of non-steroidal anti-inflammatory drugs. Two methods were selected for comparison – chlorine/UV method and the second using peroxydisulfate activated with iron(II) ions. Diclofenac was chosen as the model compound because of its relative resistance to oxidation. The results show that the chlorine/UV method is more effective in diclofenac removing (approx. 80% lower diclofenac content after the end of the experiment) compared to PDS/Fe(II) method (it removes approx. 20% of these substance), but it turns out that diclofenac is quite resistant to the effects of both methods of oxidation.","PeriodicalId":394576,"journal":{"name":"Proceedings of the 8th World Congress on New Technologies","volume":"19 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129681941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Vernacular Architecture of the San Pedro de Atacama’s Ayllu as a Facilitating Mechanism for Sustainable Development in Chile 圣佩德罗德阿塔卡马Ayllu的乡土建筑作为智利可持续发展的促进机制

Proceedings of the 8th World Congress on New Technologies Pub Date : 2022-08-01 DOI: 10.11159/icepr22.114

Stefania Pareti, V. Valdebenito, S. Bellagamba, David Flores, L. Rudolph

{"title":"Vernacular Architecture of the San Pedro de Atacama’s Ayllu as a Facilitating Mechanism for Sustainable Development in Chile","authors":"Stefania Pareti, V. Valdebenito, S. Bellagamba, David Flores, L. Rudolph","doi":"10.11159/icepr22.114","DOIUrl":"https://doi.org/10.11159/icepr22.114","url":null,"abstract":"- The main objective of this study is to explore how the construction of adobe and the Ayllú can be a facilitating mechanism for environmental protection, sustainability and development. The Ayllú de San Pedro de Atacama has been selected as a case study, because: (1) it is a territory with unique vernacular architecture, made up of adobe construction, (2) it has an ancestral tradition in adobe construction, ( 3) its construction typology is part of its material heritage and is used as a tourist resource, (4) it is located in one of the driest deserts in the world, (5) its adobe construction has allowed to safeguard its identity, sustainability and development community. The methodology is carried out, through a constructive analysis of an Ayllu, together with the analysis of 6 interviews carried out by the Pangea Foundation with key actors to explore the link with enviromental protection, sustainability and development, together with a mapping of where The main Ayllu in San Pedro are located and analyze the heritage tourist offer in this regard. It is concluded that adobe construction can be a facilitating mechanism for environmental protection, sustainability and development, as is observed in the case of San Pedro de Atacama.","PeriodicalId":394576,"journal":{"name":"Proceedings of the 8th World Congress on New Technologies","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2022-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129906435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Through Physics and Smart Materials, Breaking the Efficiency (Droop) Barrier in Light Emitting Diodes for the Ultimate Solid-State Lighting 通过物理和智能材料，打破发光二极管的效率(下垂)障碍，实现终极固态照明

Proceedings of the 8th World Congress on New Technologies Pub Date : 2022-08-01 DOI: 10.11159/icnfa22.002

C. Bayram

引用次数: 0