RAN Pub Date : 2017-04-01 DOI: 10.11159/NDDTE17.109

A. Alekseeva, A. Khalansky, O. Maksimenko, N. Osipova, K. Abbasova, J. Kreuter, S. Gelperina

引用次数: 0

In Silico Studies of the Mechanical Stimuli within Bone Tissue and Bone-Tissue-Engineered-Scaffolds 骨组织和骨组织工程支架内机械刺激的计算机研究

RAN Pub Date : 2017-04-01 DOI: 10.11159/NDDTE17.1

C. Sandino

引用次数: 0

Synthesis and Characterization of NIR Dye-Doped Nanoparticles for in Vivo Tumor Diagnostics 用于体内肿瘤诊断的近红外染料掺杂纳米颗粒的合成与表征

RAN Pub Date : 2017-04-01 DOI: 10.11159/nddte17.105

Christine Schneider, S. Dembski

引用次数: 0

Sub-microns NaCl-TiO2 Particles to Improve the Rain Enhancement as Cloud Seeding 亚微米NaCl-TiO2粒子在人工增雨中的应用

RAN Pub Date : 2017-04-01 DOI: 10.11159/ICNEI17.105

N. E. Hadri, A. Zaki, M. Vargas, L. Zou, M. Jouiad

{"title":"Sub-microns NaCl-TiO2 Particles to Improve the Rain Enhancement as Cloud Seeding","authors":"N. E. Hadri, A. Zaki, M. Vargas, L. Zou, M. Jouiad","doi":"10.11159/ICNEI17.105","DOIUrl":"https://doi.org/10.11159/ICNEI17.105","url":null,"abstract":"Extended Abstract The water scarcity in the arid region is a real concern to consider in near future. For instance, the United Arab Emirates accounts for 110 mm as the average annual rainfall, which is restricting the abundance of groundwater originating from the rainfall. Hence, there is an urgent need to look for an alternative to increase water levels to satisfy the continual growth of human and industrial needs. A promising alternative that becomes more achievable due the late technologies development is the use of cloud seeding particles to enhance the rainfall [1]. Indeed, cloud seeding is a process that allows altering the weather by the insertion of a material into the clouds in order to trigger the formation and the growth of droplets, once the water droplets are big enough they will fall due to gravity participating in the enhancement of rainfall. Basically, clouds are composed of dust particles and condensed water and the thermodynamic conditions for the formation of the droplets happened with the nucleation by aerosol particles [2]. There are two cloud seeding methods: hygroscopic cloud seeding and glaciogenic cloud seeding. In hygroscopic cloud seeding (warm clouds), it implicates the addition of salt crystals to attract water droplets and promote collision-coalescence process to form bigger droplets [3]. In glaciogenic seeding (cold clouds), it implicates the addition of particles to the cool clouds (water is below the freezing point) in order to form ice crystals, which will grow and fall. Silver iodide is used for glaciogenic cloud seeding because its form is similar to ice crystals. In this present study, new nanomaterials were used in order to obtain a high performance for hygroscopic cloud seeding. Optimized NaCl cubic crystals with a size of 1 μm were used to prepare sub-micron NaCl/TiO2. The NaCl/TiO2 were evaluated by using scanning electron microscopy (SEM), transmission electron microscopy (TEM), X-ray diffraction, Raman spectroscopy and water vapor sorption. SEM will be used in order to observe the shape and the size of the NaCl and NaCl/TiO2 particles. TEM, XRD and Raman were used in order to make in evidence the presence of the TiO2 coating on the NaCl salt crystals surface. Figure 1 gives the SEM image of the composite crystals used in this study. They have cubic like shape.","PeriodicalId":31009,"journal":{"name":"RAN","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88288805","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: 1

Layered Montmorillonite Mineral Clay Used for Controlled Insulin Release 层状蒙脱石矿物粘土用于控制胰岛素释放

RAN Pub Date : 2017-04-01 DOI: 10.11159/ICNNFC17.145

M. Sonmez, Ficai Denisa, Ficai Anton, Trusca Roxana, D. Gurau

引用次数: 0

Computational Study on the Nanotubes Formation between Olsalazine and -Cyclodextrin 奥萨拉嗪与-环糊精形成纳米管的计算研究

RAN Pub Date : 2017-04-01 DOI: 10.11159/ICNMS17.101

A. Bani-Yaseen

{"title":"Computational Study on the Nanotubes Formation between Olsalazine and -Cyclodextrin","authors":"A. Bani-Yaseen","doi":"10.11159/ICNMS17.101","DOIUrl":"https://doi.org/10.11159/ICNMS17.101","url":null,"abstract":"Extended Abstract Interests in cyclodextrin-derived nano-assembled supramolecular systems have recently grown notably [1,2]. Cyclodextrins are a family of oligosaccharides that possess very characteristic features of conical shape with hydrophobic and hydrophilic interiors and exteriors, respectively. As a host molecule, cyclodextrin (CD) can encapsulate various types of molecules inside its cavity as host-guest supramolecular interaction that is in turn stabilized by non-covalent interactions [3-5]. Under specific conditions, cyclodextrins can self-aggregate to form nanoarchitectures, such as nanotubes and nanorods. However, guest-induced nanotubular architecture can be assembled with gust molecules of suitable size, such as olsalazine drug. The objective of this work is to computationally investigate the formation and the corresponding molecular properties of olsalazine--CD nanotubes using the semi-empirical method (SQM) PM7. Different guest:host ratios of inclusion complexes that can lead to the formation of the olsalazine--CD nanotubes were examined, namely 1:2 and 2:2. Furthermore, the side of penetration of the guest molecule is another factor that is considered herein, where head and tail inclusions correspond to the penetration inside the cavity of -CD through the wide and narrow rims of -CD, respectively. On the other hand, the head-to-head, tail-to-tail, head-to-tail aggregations of -CD nanotubes are considered. The binding energy (Ebind) of the nano suprastructure was calculated using the following formula:","PeriodicalId":31009,"journal":{"name":"RAN","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90104926","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

3D Printed Human Auricular Model for Tissue Engineering 用于组织工程的3D打印人体耳廓模型

RAN Pub Date : 2017-04-01 DOI: 10.11159/nddte17.114

E. Gökçe, Armağan Yalgın, D. E. Tapınç, F. Aydın

引用次数: 0

Combined Experimental and Computational Approach to Develop Efficient Photocatalysts Based on RE-TiO2 Nanoparticles 基于RE-TiO2纳米粒子的高效光催化剂的实验与计算相结合研究

RAN Pub Date : 2017-04-01 DOI: 10.11159/ICNMS17.107

A. Mikołajczyk, Joanna Nadolna, Adriana Zalewska-Medynska, T. Puzyn

{"title":"Combined Experimental and Computational Approach to Develop Efficient Photocatalysts Based on RE-TiO2 Nanoparticles","authors":"A. Mikołajczyk, Joanna Nadolna, Adriana Zalewska-Medynska, T. Puzyn","doi":"10.11159/ICNMS17.107","DOIUrl":"https://doi.org/10.11159/ICNMS17.107","url":null,"abstract":"Extended Abstract Taking into consideration the current socioeconomical and environmental situation, new environmentally friendly and efficient nanomaterials that can degrade organic pollutants are needed. Semiconductor-based heterogeneous photocatalysis is a versatile, low-cost, clean and environmentally benign treatment technology for a variety of pollutants. Of high interest are TiO2-based nanomaterials, which can offer promising avenues for innovative applications such as environmentally friendly photocatalysts. It has been demonstrated to promote the decomposition of a variety of organic and inorganic compounds in both the gas and liquid phases, prompting its potential application in sterilization, sanitation and air and water purification systems. A serious drawback of TiO2 is that it can only be excited by ultraviolet light (<5% of the solar irradiation) due to its relatively large band gap (about 3.2 eV). Therefore, development of visible light (Vis) active photocatalysts to efficiently utilize solar energy is both an important and challenging research field. Reactivity of TiO2 in visible light (λ>400 nm) can be achieved in several ways, including metal doping or surface modification by earth raremetal nanopraticles (RE). This study has demonstrated for the first time the potential benefits of using computational approach supporting experimental methods to obtain predictive knowledge on structural features of Re-TiO2 nanotubes (RE-NTs) that may govern their photocatalytic activity under visible light. In this work, the influence of the type of rare metal (Re) on the electronica properties as well as on their photocatalytic activity, were investigated by combined experimental–theoretical approach. RE-NTs was prepared via an electrochemical method. The RE-NTs photocatalysts were characterized experimentally (i.e. by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), UV–Vis absorption, scanning electron microscopy (SEM) and luminescent spectroscopy)). The obtained results indicated that toluene in the gas phase was successfully degraded under visible light (LEDs λmax= 465 nm) using RE-NTs. Based on experimentally obtained results we selected most active sample (Ho-NTs). To investigate the electronic properties that can be responsible for higher photocatalytic activity of surface modified Ho-NTs computer simulations were performed. Molecular models of Ho-NTs were optimized using the plane-wave-based Vienna ab-initio simulation package (VASP) implementing spin-polarized density-functional theory (DFT) and the generalized gradient approximation (GGA). Based on experimental result (supported by computational methods) is proposed that during the electrochemical process, TiO2 systems with new Ho-f states below the conduction band of TiO2 is formed. The photocatalytic activity under Vis irradiation is attributable not to •OH but to other forms of reactive oxygen species (O2•−, HO2•, H2O2). It should be highlighted, that the methodolog","PeriodicalId":31009,"journal":{"name":"RAN","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72426229","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

Layered Composites Based on Recycled PET/Functionalized Woven Flax Fibres 基于再生PET/功能化亚麻织物的层状复合材料

RAN Pub Date : 2017-04-01 DOI: 10.11159/icnnfc17.144

M. Sonmez, L. Alexandrescu, M. Nițuică, M. Georgescu, Florentina Dana Gurau, D. Ficai, A. Ficai, R. Trusca, D. Constantinescu

引用次数: 2

Conformable Electronics: Recent Developments towards RobustPrinted Devices 兼容电子学:鲁棒印刷设备的最新发展

RAN Pub Date : 2017-04-01 DOI: 10.11159/ICNNFC17.2

C. Simão

{"title":"Conformable Electronics: Recent Developments towards RobustPrinted Devices","authors":"C. Simão","doi":"10.11159/ICNNFC17.2","DOIUrl":"https://doi.org/10.11159/ICNNFC17.2","url":null,"abstract":"Printed Electronics technology and hybrid devices have the potential to combine compact high-performance circuit integration on thin, flexible and elastic substrates. Reliability and robustness of hybrid printed electronics is a major challenge for the implementation of the technology in practical applications such as flexible displays, smart labels, photovoltaic devices, sensing devices, and radio frequency identification (RFID) tags. Particularly, interfaces between the rigid components and the soft substrates represent the major issue due to mechanical incompatibility. Our recent work has focused on overcoming this drawback, by emphasizing the study of materials elasticity role and their deposition process, both for inks, adhesives and encapsulants. Furthermore, this strategy settles the direction towards conformable devices, by promoting stretchability up to elasticity. In this talk, materials, including substrates, conductive inks, based on silver or carbon nanoparticles, processing and curing and deposition techniques such as screen and inkjet printing in lab scale sheet to sheet up to pre-industrial roll to roll are discussed, in addition to recent developments in demonstrators ranging from conformable skin moisture sensor to LED hybrid elastic systems are presented, depicting processes and characterization involving electrical performance under mechanical strain and stability to ambient conditions.","PeriodicalId":31009,"journal":{"name":"RAN","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2017-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90683989","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

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