Pub Date : 2023-03-01DOI: 10.2174/266614541601221216104916
Muhammad S. Aida
{"title":"Meet the Regional Editor","authors":"Muhammad S. Aida","doi":"10.2174/266614541601221216104916","DOIUrl":"https://doi.org/10.2174/266614541601221216104916","url":null,"abstract":"","PeriodicalId":36699,"journal":{"name":"Current Materials Science","volume":"353 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136156705","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}
Pub Date : 2023-03-01DOI: 10.2174/2666145416666221118101446
Habib Boughzala, Maha Said
Abstract: The title organic-inorganic hybrid compound (C9H9N2)2[CoCl4] crystallizes at room temperature in the monoclinic C2/c space group. Its atomic arrangement can be described as an alternation of organic-inorganic layers along the c-axis. Crystal cohesion of the compound is achieved through N-H…Cl hydrogen bonds between the anions and cations and through cycle stacking interactions between organic cations. The vibrational properties were studied by Fourier Transform Infrared (FTIR) spectroscopy. The three-dimensional Hirshfeld surface (3D-HS) analysis and the two-dimensional fingerprint plots (2D-FP) were generated to quantify the weak intermolecular interactions present in the crystal. The optical properties were investigated by optical absorption and photoluminescence measurements. The band gap energy indicates that the compound behaves as an insulator material. Photoluminescence results suggest that the title compound can have a potential application as a non-linear optical material.
{"title":"Synthesis, Crystal Structure, Vibrational Study, Optical Properties and Hirshfeld Surface Analysis of a New Centrosymmetric Hybrid Material, Bis(3-Aminoquinolium) Tetrachloridocobaltate (II)","authors":"Habib Boughzala, Maha Said","doi":"10.2174/2666145416666221118101446","DOIUrl":"https://doi.org/10.2174/2666145416666221118101446","url":null,"abstract":"Abstract: The title organic-inorganic hybrid compound (C9H9N2)2[CoCl4] crystallizes at room temperature in the monoclinic C2/c space group. Its atomic arrangement can be described as an alternation of organic-inorganic layers along the c-axis. Crystal cohesion of the compound is achieved through N-H…Cl hydrogen bonds between the anions and cations and through cycle stacking interactions between organic cations. The vibrational properties were studied by Fourier Transform Infrared (FTIR) spectroscopy. The three-dimensional Hirshfeld surface (3D-HS) analysis and the two-dimensional fingerprint plots (2D-FP) were generated to quantify the weak intermolecular interactions present in the crystal. The optical properties were investigated by optical absorption and photoluminescence measurements. The band gap energy indicates that the compound behaves as an insulator material. Photoluminescence results suggest that the title compound can have a potential application as a non-linear optical material.","PeriodicalId":36699,"journal":{"name":"Current Materials Science","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136156901","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}
Pub Date : 2023-02-28DOI: 10.2174/2666145416666230228120343
N. Yusop, Nurulhuda Athirah Hadri, Nursyahida Arifin, N. F. Ghazalli, R. Shaari, Khairul Bariah Ahmad Amin Noordin
Longevity has been associated with morbidity and an increase in age-related illnesses, linked to tissue degeneration and gradual loss of biological functions. Bone is an important organ that gradually degenerates with increasing lifespan. The remodeling phase plays a huge role in maintaining the ability of bone to regenerate and maintain its stability and function throughout life. Hence, bone health represents one of the major challenges to elderly citizens due to the increase of injury associated with bone degeneration, such as fragility and risks of fractures. In the virtue of improving the regenerative function of bone tissues, a specialized field of bone tissue engineering (BTE) has been introduced to improve the current strategies in treating bone degenerative disorders. Most of the research performed in BTE focuses on the optimization of key components to generate new bone formation, including the scaffold. A scaffold plays a significant role in establishing the structural form that interconnects major elements of the tissue engineering triad. To date, many types of biomaterials have been explored in BTE, ranging from natural and synthetic materials to nanocomposites. However, ideal scaffolds that display excellent biocompatibility and mechanical properties, approved for clinical practices are yet available. This paper aims to describe the up-to-date advancements in scaffold for new bone generation, highlighting the essential elements and strategies in selecting suitable biomaterials for bone repair.
{"title":"Recent Advances in Biomaterial Design for Bone Regenerative Therapy: A Mini Review","authors":"N. Yusop, Nurulhuda Athirah Hadri, Nursyahida Arifin, N. F. Ghazalli, R. Shaari, Khairul Bariah Ahmad Amin Noordin","doi":"10.2174/2666145416666230228120343","DOIUrl":"https://doi.org/10.2174/2666145416666230228120343","url":null,"abstract":"\u0000\u0000Longevity has been associated with morbidity and an increase in age-related illnesses, linked to tissue degeneration and gradual loss of biological functions. Bone is an important organ that gradually degenerates with increasing lifespan. The remodeling phase plays a huge role in maintaining the ability of bone to regenerate and maintain its stability and function throughout life. Hence, bone health represents one of the major challenges to elderly citizens due to the increase of injury associated with bone degeneration, such as fragility and risks of fractures. In the virtue of improving the regenerative function of bone tissues, a specialized field of bone tissue engineering (BTE) has been introduced to improve the current strategies in treating bone degenerative disorders. Most of the research performed in BTE focuses on the optimization of key components to generate new bone formation, including the scaffold. A scaffold plays a significant role in establishing the structural form that interconnects major elements of the tissue engineering triad. To date, many types of biomaterials have been explored in BTE, ranging from natural and synthetic materials to nanocomposites. However, ideal scaffolds that display excellent biocompatibility and mechanical properties, approved for clinical practices are yet available. This paper aims to describe the up-to-date advancements in scaffold for new bone generation, highlighting the essential elements and strategies in selecting suitable biomaterials for bone repair.\u0000","PeriodicalId":36699,"journal":{"name":"Current Materials Science","volume":"92 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73212019","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}
Pub Date : 2023-02-23DOI: 10.2174/2666145416666230223115523
Jyoti Singh, Pragati Silakari, Shaveta Sharma
In current times, all major discoveries are believed to occur at the intersections of various fields of science. In such a manner, perhaps the main creative region joining material science, biology and medication is the utilization of microwave advances. In such a way, the motivation behind this work was to explain the useful conceivable outcomes of diagnostic, analytical, synthetic and therapeutic microwave advancements. The related exploration and uses of microwave (MW) science are the arising methodologies of modern energy-based green science, on a nuclear and atomic self-aggregating level. As microwaves develop the synthetic response, they have the potential to greatly impact the chemical reaction. This technology has advanced its utilization in the field of research technology, chemical synthesis, diagnostic chemistry, wastewater treatment, and material science. This article cumulates the various available microwave synthesizers in the market with their pros and cons alongside their wide applications.
{"title":"Microwave Synthesizer: A Biomedical Engineering Technique With Advanced Applications","authors":"Jyoti Singh, Pragati Silakari, Shaveta Sharma","doi":"10.2174/2666145416666230223115523","DOIUrl":"https://doi.org/10.2174/2666145416666230223115523","url":null,"abstract":"\u0000\u0000In current times, all major discoveries are believed to occur at the intersections of various fields of science. In such a manner, perhaps the main creative region joining material science, biology and medication is the utilization of microwave advances. In such a way, the motivation behind this work was to explain the useful conceivable outcomes of diagnostic, analytical, synthetic and therapeutic microwave advancements. The related exploration and uses of microwave (MW) science are the arising methodologies of modern energy-based green science, on a nuclear and atomic self-aggregating level. As microwaves develop the synthetic response, they have the potential to greatly impact the chemical reaction. This technology has advanced its utilization in the field of research technology, chemical synthesis, diagnostic chemistry, wastewater treatment, and material science. This article cumulates the various available microwave synthesizers in the market with their pros and cons alongside their wide applications.\u0000","PeriodicalId":36699,"journal":{"name":"Current Materials Science","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88663227","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}
Pub Date : 2023-02-21DOI: 10.2174/2666145416666230221092019
Kai Zheng, Jierui Li, Cuilian Shi, Haitao Luo, H. Gong
The titanium silicide Ti5Si3 possesses many desirable properties, such as a high melting point, excellent high-temperature oxidation resistance, low density, and relatively high hardness, and it is considered a promising structural intermetallic compound. However, like most ceramic materials, originating from low symmetry (D88) in its crystal structure, Ti5Si3 has poor fracture toughness and limited flexibility at room temperature, and at high temperatures, its creep resistance also drops sharply, which hinders its application. To overcome these shortcomings, it is suggested that TiC is a practical addition to Ti5Si3 to overcome the brittleness. Compared with monolithic Ti5Si3, Ti5Si3/TiC composites have a higher fracture toughness. Ti5Si3/TiC composites can be prepared by many ways, which commonly require high energy cost, complex processes and provide low efficiency. Therefore, the search for environmentally friendly strategies for the production of Ti5Si3/TiC is still ongoing. This article proves that we can successfully prepare Ti5Si3/TiC composites from CaTiO3/SiO2/C precursor by using SOM technology and explores the reaction mechanism of electrochemical process. In the process of electroreduction of CaTiO3/SiO2/C particles into Ti5Si3/TiC composites, we mainly used SOM technology at 1273 K and 4.0 V in molten CaCl2 and under an argon atmosphere. The results show that the Ti5Si3/TiC composites can also be successfully electrosynthesized from CaTiO3/SiO2/C precursors by using SOM-based anode systems at 1273 K and 4.0 V in molten CaCl2. The Ti5Si3/TiC composites can been successfully electrosynthesized from CaTiO3/SiO2/C precursors by using SOM-based anode systems at 1273 K and 4.0 V in molten CaCl2. This work demonstrates that Ti5Si3/TiC composites have been successfully electrosynthesized from CaTiO3/SiO2/C precursors using SOM-based anode systems at 1273 K and 4.0 V in molten CaCl2. The Ti5Si3/TiC has a smooth surface and micro/nano-porous structure. The formation routes for Ti5Si3 and TiC are independent. In summary, the SOM-assisted controllable electroreduction process has the potential to provide a novel one-step route from CaTiO3/SiO2/C precursors to Ti5Si3/TiC composites in molten salts. In summary, this paper demonstrates that Ti5Si3/TiC composites have been successfully electrosynthesized from CaTiO3/SiO2/C precursors by using SOM-based anode systems at 1273 K and 4.0 V in molten CaCl2.the main intermediate stages in the electrolysis process include Ti2O3, Ca2SiO4, and SiC. The above steps of CaTiO3, SiO2, C → Ti2O3, Ca2SiO4, SiC → Ti5Si3/TiC make up the electroreduction process.Compared with the initial powders before electrolysis, the obtained Ti5Si3/TiC composite has a smooth surface and possesses a nodular microstructure.
{"title":"Solid oxide membrane-assisted controllable electrolytic fabrication of Ti5Si3/TiC composites in molten salt","authors":"Kai Zheng, Jierui Li, Cuilian Shi, Haitao Luo, H. Gong","doi":"10.2174/2666145416666230221092019","DOIUrl":"https://doi.org/10.2174/2666145416666230221092019","url":null,"abstract":"\u0000\u0000The titanium silicide Ti5Si3 possesses many desirable properties, such as a high melting point, excellent high-temperature oxidation resistance, low density, and relatively high hardness, and it is considered a promising structural intermetallic compound. However, like most ceramic materials, originating from low symmetry (D88) in its crystal structure, Ti5Si3 has poor fracture toughness and limited flexibility at room temperature, and at high temperatures, its creep resistance also drops sharply, which hinders its application. To overcome these shortcomings, it is suggested that TiC is a practical addition to Ti5Si3 to overcome the brittleness. Compared with monolithic Ti5Si3, Ti5Si3/TiC composites have a higher fracture toughness. Ti5Si3/TiC composites can be prepared by many ways, which commonly require high energy cost, complex processes and provide low efficiency. Therefore, the search for environmentally friendly strategies for the production of Ti5Si3/TiC is still ongoing.\u0000\u0000\u0000\u0000This article proves that we can successfully prepare Ti5Si3/TiC composites from CaTiO3/SiO2/C precursor by using SOM technology and explores the reaction mechanism of electrochemical process.\u0000\u0000\u0000\u0000In the process of electroreduction of CaTiO3/SiO2/C particles into Ti5Si3/TiC composites, we mainly used SOM technology at 1273 K and 4.0 V in molten CaCl2 and under an argon atmosphere.\u0000\u0000\u0000\u0000The results show that the Ti5Si3/TiC composites can also be successfully electrosynthesized from CaTiO3/SiO2/C precursors by using SOM-based anode systems at 1273 K and 4.0 V in molten CaCl2.\u0000\u0000\u0000\u0000The Ti5Si3/TiC composites can been successfully electrosynthesized from CaTiO3/SiO2/C precursors by using SOM-based anode systems at 1273 K and 4.0 V in molten CaCl2.\u0000\u0000\u0000\u0000This work demonstrates that Ti5Si3/TiC composites have been successfully electrosynthesized from CaTiO3/SiO2/C precursors using SOM-based anode systems at 1273 K and 4.0 V in molten CaCl2. The Ti5Si3/TiC has a smooth surface and micro/nano-porous structure. The formation routes for Ti5Si3 and TiC are independent. In summary, the SOM-assisted controllable electroreduction process has the potential to provide a novel one-step route from CaTiO3/SiO2/C precursors to Ti5Si3/TiC composites in molten salts.\u0000\u0000\u0000\u0000In summary, this paper demonstrates that Ti5Si3/TiC composites have been successfully electrosynthesized from CaTiO3/SiO2/C precursors by using SOM-based anode systems at 1273 K and 4.0 V in molten CaCl2.the main intermediate stages in the electrolysis process include Ti2O3, Ca2SiO4, and SiC. The above steps of CaTiO3, SiO2, C → Ti2O3, Ca2SiO4, SiC → Ti5Si3/TiC make up the electroreduction process.Compared with the initial powders before electrolysis, the obtained Ti5Si3/TiC composite has a smooth surface and possesses a nodular microstructure.\u0000","PeriodicalId":36699,"journal":{"name":"Current Materials Science","volume":"132 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72994846","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}
Pub Date : 2023-02-16DOI: 10.2174/2666145416666230216142345
S. Ramdoum
In this study, the effect of mechanical and physical properties of the metal and temperature is highlighted. The purpose of this study is to analyze the effect of these stresses on multi-materials. This work aimed to conduct a three-dimensional numerical study by the finite element method on the levels and distributions of the stresses in the Al2O3/NI/HAYNES multi-materials. These stresses of thermal and mechanical origin are generally detrimental to the service life of multi-material. ? The use of numerical resolution by finite element method is the most suitable for complex mechanical problems. It allows a more in-depth analysis of all points of the structure. In this study, a fundamental tool was constructed to resolve the mechanical behavior of materials subjected to complex solicitations. Therefore, the ABAQUS calculation code version 6.14 was used to analyze the residual stresses. The aim of this study is to analyze the effect of the residual stresses on the multimaterials assemblies. By interpreting the results in terms of stress variation, we identified the areas at risk; in particular, the nature of a joint effect plays a decisive role in the assembly of the right material in its mechanical resistance. This nature is defined in terms of stiffness (Young's modulus) and differential expansion (coefficient of thermal expansion). using finite element method (integral contour) in the numerical simulation software abaqus version 6.14 The presence of strong residual stresses can constitute a risk of damage to several materials. The difference between the coefficients of thermal expansion of the two materials (metal and ceramic) linked together induces, in these two constituents, normal internal stresses. This difference determines the level and distribution of these constraints. Moreover, the sign of this difference determines the state of the normal stresses. The results interpreted in terms of damage, we identified risk areas. in particular the effect of the seal which allows a strong relaxation of the residual stresses. No potential conflict of interest was reported by the authors.
在这项研究中，强调了金属的机械和物理性能以及温度的影响。本研究的目的是分析这些应力对多种材料的影响。本文采用有限元方法对Al2O3/NI/HAYNES复合材料的应力水平和分布进行了三维数值研究。这些热应力和机械应力通常对复合材料的使用寿命有害。采用有限元方法进行数值解析最适合于复杂的力学问题。它允许对结构的所有点进行更深入的分析。在本研究中，构建了一个基本工具来解决材料在复杂请求下的力学行为。因此，采用ABAQUS 6.14版计算代码对残余应力进行分析。本研究的目的是分析残余应力对多材料组合的影响。通过根据压力变化来解释结果，我们确定了有风险的区域;特别是，接头效应的性质在正确材料的机械阻力组装中起着决定性的作用。这种性质是根据刚度(杨氏模量)和微分膨胀(热膨胀系数)定义的。在数值模拟软件abaqus version 6.14中使用有限元法(积分轮廓)强残余应力的存在会对几种材料构成损坏的风险。连接在一起的两种材料(金属和陶瓷)的热膨胀系数之间的差异在这两种成分中引起法向内应力。这种差异决定了这些约束的级别和分布。此外，这种差异的符号决定了正常应力的状态。从损害的角度来解释结果，我们确定了风险区域。特别是密封的效果，它允许残余应力的强烈松弛。作者未发现潜在的利益冲突。
{"title":"Numerical Analysis of Residual Stresses Effect in Multi-materials","authors":"S. Ramdoum","doi":"10.2174/2666145416666230216142345","DOIUrl":"https://doi.org/10.2174/2666145416666230216142345","url":null,"abstract":"\u0000\u0000In this study, the effect of mechanical and physical properties of the metal and temperature is highlighted. The purpose of this study is to analyze the effect of these stresses on multi-materials. This work aimed to conduct a three-dimensional numerical study by the finite element method on the levels and distributions of the stresses in the Al2O3/NI/HAYNES multi-materials. These stresses of thermal and mechanical origin are generally detrimental to the service life of multi-material.\u0000\u0000\u0000\u0000?\u0000\u0000\u0000\u0000The use of numerical resolution by finite element method is the most suitable for complex mechanical problems. It allows a more in-depth analysis of all points of the structure. In this study, a fundamental tool was constructed to resolve the mechanical behavior of materials subjected to complex solicitations. Therefore, the ABAQUS calculation code version 6.14 was used to analyze the residual stresses.\u0000\u0000\u0000\u0000The aim of this study is to analyze the effect of the residual stresses on the multimaterials assemblies.\u0000\u0000\u0000\u0000By interpreting the results in terms of stress variation, we identified the areas at risk; in particular, the nature of a joint effect plays a decisive role in the assembly of the right material in its mechanical resistance. This nature is defined in terms of stiffness (Young's modulus) and differential expansion (coefficient of thermal expansion).\u0000\u0000\u0000\u0000using finite element method (integral contour) in the numerical simulation software abaqus version 6.14\u0000\u0000\u0000\u0000The presence of strong residual stresses can constitute a risk of damage to several materials. The difference between the coefficients of thermal expansion of the two materials (metal and ceramic) linked together induces, in these two constituents, normal internal stresses. This difference determines the level and distribution of these constraints. Moreover, the sign of this difference determines the state of the normal stresses.\u0000\u0000\u0000\u0000The results interpreted in terms of damage, we identified risk areas. in particular the effect of the seal which allows a strong relaxation of the residual stresses.\u0000\u0000\u0000\u0000No potential conflict of interest was reported by the authors.\u0000","PeriodicalId":36699,"journal":{"name":"Current Materials Science","volume":"65 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86090050","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}
Pub Date : 2023-01-31DOI: 10.2174/2666145416666230131121435
Keshav Bansal, Venu Raghuvanshi, M. Bajpai
Humans have been using plant-derived gums for a variety of purposes since the beginning of time. Gums and mucilages are common natural materials utilised in both traditional and innovative dosage forms. Natural polymers are found to be very effective after incorporation in novel dosage forms to fulfill specific roles, resulting in improvements in drug delivery by increasing the drug expulsion rate and absorption. Natural medicines and excipients are becoming increasingly popular worldwide because of their inert nature, less toxicity, cheap and biologically degradable, and ease of availability. Many patents like WO/2018/199924A1 and WO/2004/094443A1 have been published on the uses of gums and mucilages in pharmaceuticals. The plant-derived polymeric compounds (gums and mucilages) are discussed in this study, along with their application and reported research and patents on their utilization in innovative drug delivery methods.
{"title":"Plant-derived Gums and Mucilages: A Food for Thought for Researchers to Develop Pharmaceuticals","authors":"Keshav Bansal, Venu Raghuvanshi, M. Bajpai","doi":"10.2174/2666145416666230131121435","DOIUrl":"https://doi.org/10.2174/2666145416666230131121435","url":null,"abstract":"\u0000\u0000Humans have been using plant-derived gums for a variety of purposes since the beginning of time. Gums and mucilages are common natural materials utilised in both traditional and innovative dosage forms. Natural polymers are found to be very effective after incorporation in novel dosage forms to fulfill specific roles, resulting in improvements in drug delivery by increasing the drug expulsion rate and absorption. Natural medicines and excipients are becoming increasingly popular worldwide because of their inert nature, less toxicity, cheap and biologically degradable, and ease of availability. Many patents like WO/2018/199924A1 and WO/2004/094443A1 have been published on the uses of gums and mucilages in pharmaceuticals. The plant-derived polymeric compounds (gums and mucilages) are discussed in this study, along with their application and reported research and patents on their utilization in innovative drug delivery methods.\u0000","PeriodicalId":36699,"journal":{"name":"Current Materials Science","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77714074","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}
Pub Date : 2023-01-24DOI: 10.2174/2666145416666230124143912
Bibhuprasad Sahu, S. Dash
This paper proposed a hybrid information gain and a Jaya algorithm-based model to identify the informative genes from the high dimensional microarray data set. Metaheuristic algorithms need to tune the parameters to achieve better accuracy, and it is a tidy and sensitive job for all researchers. To solve the difficulties mentioned above, we proposed IG-Jaya, a new hybrid FS model based on wrapping information gain with the Jaya optimization algorithm (parameterless) to obtain the optimal features from the microarray data set. The objective behind considering Jaya is to minimize the computing cost and the risk of tuning the algorithm’s parameters to achieve better accuracy. This algorithm’s main strength is that it identifies the best feature subset by updating the worst ones. The resulting feature subset can be considered an input for the classification model.The primary contributions of the study are 1.Using IG as a technique, we developed a filter-based paradigm to employ feature selection by removing redundant and irrelevant features from microarray cancer datasets. 2. This new hybrid meta-heuristic FS model, namely IG-Jaya, is proposed for the efficient diagnosis of cancer disease. 3. Different metrics such as sensitivity, specificity, accuracy, and AUC-ROC Curve are used to study the performance of the hybrid model with various classifiers such as SVM, LDA, DT, NB, etc. This paper’s overall investigation is divided into two phases: In the first part, without including any filter, we have used the parameter-less JA to identify featured gene subsets. And the performance of JA is evaluated using various classifiers like SVM, LDA, NB, and DT. From the resulting study, it is noteworthy to state that IG-JAYA performs better as compared to the existing models This paper proposed a hybrid information gain and a Jaya algorithm-based model to identify the informative genes from the high dimensional microarray data set. The performance evaluation of the proposed model is done with 13 different benchmark data sets. To achieve better performance, we have focused on one of the best meta-heuristic parameter-less algorithms called JAYA. It used the solution''s fitness to gather the most feasible informative genes. And from the comparison table, we can also ensure the model''s performance. For some datasets, our proposed model cannot provide the best accuracy compared to other existing approaches; it is pretty steady and sound. The same model will be tested with different filter methods and real-time datasets in the subsequent study. A hybrid multi-filter Jaya algorithm will be proposed to check the efficiency of the proposed one. And it would be better to choose any other hybrid model with JAYA to enhance the feature selection accuracy with a high dimensional dataset. In the future , it would be better to choose any other hybrid model (chaos-based) with JAYA to enhance the feature selection accuracy with a high-dimensional dataset.
{"title":"Optimal Feature Selection from High-dimensional Microarray Dataset Employing \u0000Hybrid IG-Jaya Model","authors":"Bibhuprasad Sahu, S. Dash","doi":"10.2174/2666145416666230124143912","DOIUrl":"https://doi.org/10.2174/2666145416666230124143912","url":null,"abstract":"\u0000\u0000This paper proposed a hybrid information gain and a Jaya algorithm-based\u0000model to identify the informative genes from the high dimensional microarray\u0000data set.\u0000\u0000\u0000\u0000Metaheuristic algorithms need to tune the parameters to achieve better accuracy, and it is a tidy and sensitive job for all researchers. To solve the difficulties mentioned above, we proposed IG-Jaya, a new hybrid FS model based on wrapping information gain with the Jaya optimization algorithm (parameterless) to obtain the optimal features from the microarray\u0000data set.\u0000\u0000\u0000\u0000The objective behind considering Jaya is to minimize the\u0000computing cost and the risk of tuning the algorithm’s parameters to achieve\u0000better accuracy. This algorithm’s main strength is that it identifies the best\u0000feature subset by updating the worst ones. The resulting feature subset can\u0000be considered an input for the classification model.The primary contributions of the study are 1.Using IG as a technique, we developed a filter-based paradigm to employ feature selection by removing redundant and irrelevant features from microarray cancer datasets. 2. This new hybrid meta-heuristic FS model, namely IG-Jaya, is proposed for the efficient diagnosis of cancer disease. 3. Different metrics such as sensitivity, specificity, accuracy, and AUC-ROC Curve are used to study the performance of the hybrid model with various classifiers such as SVM, LDA, DT, NB, etc.\u0000\u0000\u0000\u0000This\u0000paper’s overall investigation is divided into two phases: In the first\u0000part, without including any filter, we have used the parameter-less\u0000JA to identify featured gene subsets. And the performance of JA is\u0000evaluated using various classifiers like SVM, LDA, NB, and DT.\u0000\u0000\u0000\u0000From the resulting study, it is noteworthy to state that IG-JAYA performs better as compared to the existing models\u0000\u0000\u0000\u0000This paper proposed a hybrid information gain and a Jaya algorithm-based model to identify the informative genes from the high dimensional microarray data set. The performance evaluation of the proposed model is done with 13 different benchmark data sets. To achieve better performance, we have focused on one of the best meta-heuristic parameter-less algorithms called JAYA. It used the solution''s fitness to gather the most feasible informative genes. And from the comparison table, we can also ensure the model''s performance. For some datasets, our proposed model cannot provide the best accuracy compared to other existing approaches; it is pretty steady and sound. The same model will be tested with different filter methods and real-time datasets in the subsequent study. A hybrid multi-filter Jaya algorithm will be proposed to check the efficiency of the proposed one. And it would be better to choose any other hybrid model with JAYA to enhance the feature selection accuracy with a high dimensional dataset.\u0000\u0000\u0000\u0000In the future , it would be better to choose any other hybrid model (chaos-based) with JAYA to enhance the feature selection accuracy with a high-dimensional dataset.\u0000","PeriodicalId":36699,"journal":{"name":"Current Materials Science","volume":"20 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89124609","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}
Pub Date : 2023-01-24DOI: 10.2174/2666145416666230124143154
A. Sakthivel, P. Sahu, Soumya B Narendaranth
The main objective is to prepare cerium containing aluminium-free siliceous MCM-22 (AF-CeMCM-22) catalyst by in-situ hydrothermal method, its characterization, and catalytic application for the conversion of biomass model components. Powder XRD, FTIR, and BET surface area were used to study the microstructure of the samples. The powder XRD patterns showed a distinguished MCM-22 framework structure with a uniform dispersion of cerium ions in the MCM-22 framework. SEM images of the cerium AF-CeMCM-22 showed a spherical morphology formed out of platelet flakes which have a surface area in the range of 173-145 m2g1. 29Si NMR and DR-UV-Vis studies confirmed the well-condensed nature of the silica framework in MCM-22 and the presence of cerium ions as Ce(IV) in the extra framework environment. The resultant AF-CeMCM-22 was found to be a promising catalyst for the conversion of isoeugenol to vanillin at 60 ℃ in presence of H2O2 (oxidant) with a selectivity of 71%. Further, the activity is retained for several cycles. Zeolites and zeolite like microporous materials are well known as potential heterogeneous acid catalysts, whose discovery has made a significant impact in the petroleum, petrochemical and fine chemical industries. ]. In recent years, zeolite, zeolites like molecular sieves, and inorganic oxide-based heterogeneous catalysts played a significant role in biomass valorization to receive value-added chemicals. Thus we focused on utilization of zeolite for biomass transformation. Preparation of Cerium containing aluminium-free siliceous MCM-22 (AF-CeMCM-22) by the in-situ hydrothermal method and explore its importance on biomass transformation. Powder XRD, FTIR and BET surface area were used to study the microstructure of the samples. SEM and FE-SEM were used to study morphology, TGA was used to evaluate the thermal stability, and 29Si NMR and DR-UV-Vis were used to study the environment of the MCM-22 framework. The prepared and confirmed material was used for the oxidation of levulinic acid over the liquid phase setup. Gas chromatography was used to evaluate the catalytic study, such as conversion and selectivity; also, GCMS was used for the confirmation of products.
{"title":"Cerium Containing Siliceous MCM-22: Preparation, Characterization and Its Potential Application towards Oxidation of Isoeugenol to Vanillin","authors":"A. Sakthivel, P. Sahu, Soumya B Narendaranth","doi":"10.2174/2666145416666230124143154","DOIUrl":"https://doi.org/10.2174/2666145416666230124143154","url":null,"abstract":"\u0000\u0000The main objective is to prepare cerium containing aluminium-free siliceous MCM-22 (AF-CeMCM-22) catalyst by in-situ hydrothermal method, its characterization, and catalytic application for the conversion of biomass model components. Powder XRD, FTIR, and BET surface area were used to study the microstructure of the samples. The powder XRD patterns showed a distinguished MCM-22 framework structure with a uniform dispersion of cerium ions in the MCM-22 framework. SEM images of the cerium AF-CeMCM-22 showed a spherical morphology formed out of platelet flakes which have a surface area in the range of 173-145 m2g1. 29Si NMR and DR-UV-Vis studies confirmed the well-condensed nature of the silica framework in MCM-22 and the presence of cerium ions as Ce(IV) in the extra framework environment. The resultant AF-CeMCM-22 was found to be a promising catalyst for the conversion of isoeugenol to vanillin at 60 ℃ in presence of H2O2 (oxidant) with a selectivity of 71%. Further, the activity is retained for several cycles.\u0000\u0000\u0000\u0000Zeolites and zeolite like microporous materials are well known as potential heterogeneous acid catalysts, whose discovery has made a significant impact in the petroleum, petrochemical and fine chemical industries. ]. In recent years, zeolite, zeolites like molecular sieves, and inorganic oxide-based heterogeneous catalysts played a significant role in biomass valorization to receive value-added chemicals. Thus we focused on utilization of zeolite for biomass transformation.\u0000\u0000\u0000\u0000Preparation of Cerium containing aluminium-free siliceous MCM-22 (AF-CeMCM-22) by the in-situ hydrothermal method and explore its importance on biomass transformation.\u0000\u0000\u0000\u0000Powder XRD, FTIR and BET surface area were used to study the microstructure of the samples. SEM and FE-SEM were used to study morphology, TGA was used to evaluate the thermal stability, and 29Si NMR and DR-UV-Vis were used to study the environment of the MCM-22 framework. The prepared and confirmed material was used for the oxidation of levulinic acid over the liquid phase setup. Gas chromatography was used to evaluate the catalytic study, such as conversion and selectivity; also, GCMS was used for the confirmation of products.\u0000","PeriodicalId":36699,"journal":{"name":"Current Materials Science","volume":"59 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-01-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86663120","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}
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