Proceedings of the 9th World Congress on New Technologies最新文献

{"title":"Hydrophobic Metals Nanoparticles Encapsulated In A Lipid Bilayer Of Thermosensitive-Liposome","authors":"Shima Khezri Azizi Far, L. Kudsiova, Dipak K. Sarker","doi":"10.11159/icnfa23.127","DOIUrl":"https://doi.org/10.11159/icnfa23.127","url":null,"abstract":"Thermosensitive liposomes (TSLs) have gained significant attention in recent years due to their potential applications in drug delivery and biomedical therapeutics. This study investigates developing and characterising TSLs encapsulated with hydrophobic gold (Au) and silver (Ag) nanoparticles for enhanced therapeutic efficacy. The TSLs were prepared using a thin-film hydration method, and hydrophobic Au and Ag nanoparticles were incorporated into the lipid bilayers [1]. The physicochemical properties of the TSLs, including size, surface charge, and thermal stability, were evaluated using dynamic light scattering, zeta potential measurements, and differential scanning calorimetry. Hydrophobic Au and Ag nanoparticles were encapsulated within the TSLs, resulting in stable and uniform nanocarriers. The average size of the TSLs was determined to be within the desirable range for efficient cellular uptake and circulation in the bloodstream. The presence of hydrophobic nanoparticles did not significantly affect the overall size and surface charge of the TSLs. Furthermore, the thermal stability of the TSLs was evaluated, and it was found that the incorporation of hydrophobic nanoparticles improved the heat sensitivity of the liposomes [2]. This enhanced thermos sensitivity can be exploited for triggered drug release at elevated temperatures, such as hyperthermia-induced tumour targeting","PeriodicalId":398088,"journal":{"name":"Proceedings of the 9th World Congress on New Technologies","volume":"79 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117243749","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}

{"title":"Manipulating Bubble Dynamics and Heat Transfer using 3D Superbiphilic Micro/Nanostructures","authors":"Christopher Salmean, H. Qiu","doi":"10.11159/icnfa23.126","DOIUrl":"https://doi.org/10.11159/icnfa23.126","url":null,"abstract":"- With the development and miniaturization of high density integrated circuits and multi-functions of electronic chips, the heat flux generated by the chips has been greatly increased, which becomes a bottleneck for further development. Therefore, it is emergent to develop new and efficient thermal management techniques for electronics cooling. Phase change heat transfer, such as boiling and evaporation, is a promising technique for the cooling of electronic devices. However, the prevention of vapor film formation is a fundamental challenge for the enhancement of phase change systems, and an impetus therefore exists for the discovery of new techniques to segregate nucleation during their formation. It has been shown that the surface of the three-dimensional superbiphilic wettability patterns can control the bubble dynamics and phase transition process of the three-phase contact line, thereby greatly enhancing the heat transfer coefficient and critical heat flux of pool boiling and flow boiling with a range of geometries, orientations and morphologies in order to influence the surface-tension forces which resist the bubble’s departure and wicking performance. Previous study also found that the concentration Marangoni effect using low-boiling-point multi-component working fluids may help further improve heat transfer performance. Therefore, it is of great interests to study the multiphase flow, wicking performance, heat and mass transfer and contact line dynamics on the three-dimensional superbiphilic wettability patterned surfaces. This talk will present our recently progresses in novel three-dimensional superbiphilic wettability patterns for enhancing phase change heat transfer and how to manipulate the liquid propagation coefficient using non-uniform micropillar array. The experimental results utilizing high speed visualization and time-resolved PIV systems will be presented.","PeriodicalId":398088,"journal":{"name":"Proceedings of the 9th World Congress on New Technologies","volume":"172 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124206545","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}

{"title":"A Multi-Layer Perceptron Approach For Estimating Daily Surface NO2 In Thiruvananthapuram City","authors":"S. Babu, B. Thomas","doi":"10.11159/icepr23.143","DOIUrl":"https://doi.org/10.11159/icepr23.143","url":null,"abstract":"In this study, a machine-learning framework based on a multi-layer perceptron (MLP) algorithm is applied to estimate the daily values of air pollutant NO 2 in Thiruvananthapuram city of Kerala, India. The risk of human respiratory tract infections rises when exposed to high amounts of NO 2 [1]. Due to urbanization and its consequences, the air quality in the study region is getting deteriorated [2]. As a result, there is a pressing need for research and estimation of air pollutants like NO 2 in Thiruvananthapuram city. MLP is a supervised neural network model that is frequently used and it gains experience by learning to simulate the correlation between a set of input-output pairs [3]. This paper proposes a four-layer (i.e. one input, two hidden and one output) multi-layer perceptron neural network model for predicting the daily surface NO 2 values. Two year daily data (January 2018 to December 2019) is collected from Central Pollution Control Board, Government of India. The study utilizes 8 air pollutant parameters (PM 10 , PM 2.5 , SO 2 , NO, NO x , NH 3 , CO and Ozone) and 7 meteorological parameters (wind speed, wind direction, air temperature, solar radiance, relative humidity, atmospheric pressure and rainfall) in the model development. Due to instrumental errors, certain data are missing and such missing daily data records are excluded from","PeriodicalId":398088,"journal":{"name":"Proceedings of the 9th World Congress on New Technologies","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114700936","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}

{"title":"Fall Detection Algorithm Using a Smart Wearable System for Remote Health Monitoring","authors":"Abdelrahman Fawaz, Moaz Elsayed, A. Sharshar, Mohammed S. Sayed, Ahmed H. Abd El‐Malek, Mohammed Abo Zahhad","doi":"10.11159/icbb23.111","DOIUrl":"https://doi.org/10.11159/icbb23.111","url":null,"abstract":"- Nowadays more people prefer to live independently, especially the elderly, leaving them prone to incidents that they might not be able to report. Falls, for instance, are responsible for over 3 million emergency hospitalizations for head injuries and hip fractures each year in the U.S. In addition, other cases often go unreported, leading to further complications including chronic disabilities and even fatality. Therefore, the detection of such incidents has become of urgent necessity. The purpose of this paper is to develop and propose a machine learning support vector classification (SVC) algorithm for fall detection using accelerometer, gyroscope, and magnetometer sensors embedded in a smart wearable system for remote health monitoring. The device is placed on the subject’s wrist to collect data on various motion activities in real-time, such as walking, running, jogging, waving, and stair-climbing in addition to other static postures like standing, lying, and sitting. The constructed dataset comprises 30 subjects with over 1200 data frames. The model achieved an overall accuracy of 98.3% and a specificity of 98.2% in separating falls from other daily-life activities.","PeriodicalId":398088,"journal":{"name":"Proceedings of the 9th World Congress on New Technologies","volume":"47 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126340542","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}

{"title":"Application Of Synthetic And Natural Surfactants For Mobilizing Pahs In Marine Sediments For Remediation Purposes","authors":"Gabriele Moscatelli, Berardino Barbati, S. Chiavarini, L. Caiazzo, M. P. Papini","doi":"10.11159/icepr23.135","DOIUrl":"https://doi.org/10.11159/icepr23.135","url":null,"abstract":"Extended Abstract The presence of Polycyclic Aromatic Hydrocarbons (PAHs) in marine sediments is one of the major concern for human health and marine ecosystem because of their toxicity, mutagenicity and carcinogenicity [1]. The increase of industrial and urbanization processes contributes to rise PAHs level in the coastal regions. They readily associate with inorganic and organic suspended particles and may accumulate in sediments at high concentrations, due to their low solubility and hydrophobic nature [2]. In recent years, the use of surfactants, as soil-washing agents, is becoming particularly attractive for their low toxicity and favourable biodegradability in the environment relative to organic-solvent based systems [3]. It has been reported that the success of soil-washing with surfactants can be attributed to the capacity of these compounds to appreciably enhance the aqueous solubility of hydrophobic organic compounds [4] and then the efficiency of contaminants mobilization. The aim of this research is the evaluation of the ability to solubilize and mobilize PAHs of different non-ionic and biodegradable surfactants, synthetic or biosurfactants, in order to remediate heavily contaminated sediments. Investigated Surfactants’ families are Alkylpolyglycosides (APGs), Sophorolipids (SLs) and Rhamnolipids (RLs). Sediments from Bagnoli","PeriodicalId":398088,"journal":{"name":"Proceedings of the 9th World Congress on New Technologies","volume":"82 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131293735","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}

{"title":"New Perspectives of the Silicates Based Materials: From Classical To Emerging Applications of Glasses","authors":"C. Ilie, Ludmila Motelica, D. Ficai, R. Trusca, O. Oprea, A. Ficai","doi":"10.11159/icnfa23.13","DOIUrl":"https://doi.org/10.11159/icnfa23.13","url":null,"abstract":"Silicon and oxygen are some of the most abundant elements of the earth being mainly found in the nature as silicates. Among many applications, large amounts of glasses are produced for many specific applications. However, there are some emerging applications which are increasingly gaining attention. The classical applications of the glass involve windows (automotive, house, etc.), glass fibers and fabrics (resin based composites with uses in building materials, automotive and domestic applications, …), sensors (especially pH electrodes), glassware for laboratories as well as domestic use, etc. Since over 50 years from the discovery of the bioactive glasses by L. Hench, bioglasses are increasingly used in hard tissue engineering but also in several applications including soft tissue engineering. Bioglasses, once doped with adequate ions, can get antimicrobial activity or can enhance the healing rate or the vascularization of the new tissues. The surface modification of the glasses can be exploited to induce new functionalities of the surfaces. It is well known that coatings are already implemented in several industries, such as automotive or pharmaceutics. For instance, automotive glass windows are coated with various layers to assure specific properties including: antiadherence, self-cleaning, antifogging, antireflection, etc. But, new surface modifications are still desired and needed. Thus, adherent or antiadherent surfaces are expected to be useful in specific forensic applications to take fingerprints or to avoid their tendency to remain on different surfaces; sensitive surfaces able to specifically adsorb analytes (including heavy metals, dyes, antibiotics, pesticides, etc.) for the specific accumulation of these analytes and finally to analyze them by specific techniques. Multiple areas can be specifically modified to develop arrays with complex sensing activity. In the current work, we are focusing our researches in modifying the surface of the glass slides by a self-assembled methodology, as schematically presented in Fig 1.","PeriodicalId":398088,"journal":{"name":"Proceedings of the 9th World Congress on New Technologies","volume":"37 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128215655","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}

{"title":"Biocompatible surfaces for biomedical devices base on the intermediate water concept","authors":"Masaru Tanaka","doi":"10.11159/icbb23.001","DOIUrl":"https://doi.org/10.11159/icbb23.001","url":null,"abstract":"Water molecules play a crucial role in bio-interfacial interactions, including protein adsorption/desorption and cell adhesion behavior. To understand the role of water in the interaction of proteins and cells at biological interfaces, it is important to compare the states of hydration water with various physicochemical properties of hydrated polymeric biomaterials. Herein, we present the fundamental concepts for determining the interactions of proteins and cells with hydrated polymers along with selected examples corresponding to our recent studies, for example, poly(2-methoxyethyl acrylate) (PMEA), PMEA derivatives, zwitterionic polymers, poly(ethylene glycol), poly( N -vinyl-2-pyrroridone), and poly(2-oxazoline)s, and other polymers including biopolymers (DNA, RNA, proteins, and polysaccharides). The states of water were analyzed by differential scanning calorimetry, in situ attenuated total reflection infrared spectroscopy, soft X-ray emission spectroscopy, surface force measurements, and wide variety of analytical techniques. We found that intermediate water which is loosely bound to a polymer, is a useful indicator of the biocompatibility of polymer surfaces. This finding on intermediate water provides novel insights and helps develop novel experimental models for understanding protein adsorption/cell adhesion in a wide range of polymers, such as those used in biomedical applications.","PeriodicalId":398088,"journal":{"name":"Proceedings of the 9th World Congress on New Technologies","volume":"139 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123733715","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}

{"title":"Magnetic Smart Systems for Theranostic","authors":"D. Ficai, Ludmila Motelica, Angela Spoială, C. Ilie, A. Surdu, B. Vasile, O. Oprea, A. Ficai, E. Andronescu, Cristina Chircov","doi":"10.11159/icnfa23.140","DOIUrl":"https://doi.org/10.11159/icnfa23.140","url":null,"abstract":"Denisa Ficai 1-3, Ludmila Motelica1-3,5, Angela Spoiala2-4, Cornelia Ioana Ilie2-4, Cristina Chircov2-4, Roxana Doina Trusca 2-4, Adrian Vasile Surdu 2-4, Bogdan Stefan Vasile2-4, Ovidiu Cristian Oprea 1-3,5, Anton Ficai 2-5, Ecaterina Andronescu2-5 1Department of Inorganic Chemistry, Physical Chemistry and Electrochemistry, Faculty of Applied Chemistry and Materials Science, University POLITEHNICA of Bucharest, Gh. Polizu 1-7, 011061 Bucharest, Romania, 2National Research Center for Food Safety, University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania; ovidiu73@yahoo.com 3National Center for Micro and Nanomaterials, University POLITEHNICA of Bucharest, Splaiul Independentei 313, 060042 Bucharest, Romania 4Science and Engineering of Oxide Materials and Nanomaterials, Faculty of Applied Chemistry and Materials Science, University POLITEHNICA of Bucharest, Gh. Polizu 1-7, 011061 Bucharest, Romania; motelica_ludmila@yahoo.com (L.M.); truscaroxana@yahoo.com (R.D.T.); georgeta.voicu@upb.ro (G.V.); anton.ficai@upb.ro (A.F.) 5Academy of Romanian Scientists, Ilfov Street 3, 050044 Bucharest, Romania * Correspondence: denisaficai@yahoo.com,","PeriodicalId":398088,"journal":{"name":"Proceedings of the 9th World Congress on New Technologies","volume":"70 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130745194","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}

{"title":"Characterisation of Local Borehole Water within the Platinum Belt in\u0000Mokopane, Limpopo, Republic of South Africa","authors":"Mahlatse Emily Weber, R. Alowo, German Nkhonjera","doi":"10.11159/icepr23.142","DOIUrl":"https://doi.org/10.11159/icepr23.142","url":null,"abstract":"","PeriodicalId":398088,"journal":{"name":"Proceedings of the 9th World Congress on New Technologies","volume":"23 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125343696","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}

{"title":"A Modelling Framework for Groundwater Sustainability in the Upper\u0000Orange Catchment of South Africa","authors":"R. Alowo","doi":"10.11159/icepr23.141","DOIUrl":"https://doi.org/10.11159/icepr23.141","url":null,"abstract":"The paper aims to model important parameters governing the sustainability of groundwater systems in C52 catchment of the Upper Orange River system of South Africa. The Upper Orange River is part of the broad Orange River System. Due to the adverse impact of climatic change and increased dependence on the groundwater systems in the catchment, there is a need for development of a framework for sustainable groundwater management by modelling hydrological and human induced factors affecting the sustainability of the groundwater system. The conceptual framework was based on the physical processes governing hydrological cycles in relation to groundwater sustainability in the upper Orange catchment. Some of these processes are surface to groundwater interactions, land use to groundwater interactions and land use and climate interactions. These processes were grouped as factors and includes climatic, socio-economic and land use, aquifer sustainability, right and equity of resources. The methodology involved a detailed understanding of the parameters and ranking of the physical processes affecting groundwater system of the upper orange river catchment such as the climatic factors (precipitation, evapotranspiration, sunshine, slope, topography, climatic zones), aquifer system (recharge, yields, storativity, aquifer types, lithology/rock types). Other important catchment factors and parameter rankings which are human induced are rights and equity (number of issued permits per year in the catchment, duration of the permits, number of boreholes in the sub-catchment, pump rate per year), socio-economic and land use (use per capita, population in the catchment, water uses and Tariffs). The developed framework was proposed in a sustainability index. The sustainability indices were ranked based on a scoring system from the highest score of 100 which implies highly sustainable system to the lowest score of 19 which suggest the least sustainable. Rating of 1 was assigned to severe impact and rating of 5 was assigned to least impact on the groundwater sustainability status. The final groundwater sustainability index score of 19-35 means very low sustainability, 35-51 means low sustainability, 51-67 means moderate sustainability, 67-83 means high sustainability and 83-100 means very high sustainability. The developed sustainability index will be applied to the 51 boreholes mapped in the C52 tertiary catchment of the Upper Orange River Catchment. The outcome will be in a sustainability map showing areas depicting the most to least sustainable aquifers in the catchment. The developed sustainability index and maps would be useful tools for future groundwater management.","PeriodicalId":398088,"journal":{"name":"Proceedings of the 9th World Congress on New Technologies","volume":"21 1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131230841","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}