Journal of Chemistry and Applications最新文献_第4页

Nanotechnological advances of Lipid film-based biosensors for the rapid detection of biological compounds and toxicants 基于脂质膜的生物传感器快速检测生物化合物和毒物的纳米技术进展

Journal of Chemistry and Applications Pub Date : 2019-11-22 DOI: 10.36811/jca.2019.110004

Georgia-Paraskevi Nikoleli

{"title":"Nanotechnological advances of Lipid film-based biosensors for the rapid detection of biological compounds and toxicants","authors":"Georgia-Paraskevi Nikoleli","doi":"10.36811/jca.2019.110004","DOIUrl":"https://doi.org/10.36811/jca.2019.110004","url":null,"abstract":"The exploration of lipid membranes for the construction of nanobiosensors has recently provided the opportunity to construct devices to monitor a wide range of compounds of biological interest. Nanobiosensor miniaturization using nanotechnological tools has given novel ways to attach a wide range of “receptors” in the lipid membrane. The lipids used to construct a lipid film-based device are dipalmiloylphosphatidylcholine {DPPC} and in some cases dipalmitoylphosphatidic acid (DPPA) which is an anionic lipid and is used to increase the sensitivity of detection. Most common “receptors” used in lipid film biosensors are enzymes such as urease, cholesterol oxidase, urecase, etc, antibodies such as D-dimer antibody and artificial or natural receptors such as saxitoxin, cholera toxin, calyx [4] arene phospjoryl receptor, etc. This chapter reviews and investigates the construction of nanobiosensors based on lipid membranes that are used to monitor various toxicants. It also exploits examples of applications with an emphasis on novel devices, new nanobiosensing techniques and nanotechnology-based transduction schemes. The compounds that can be detected are insecticides, toxins, hormones, dioxins, etc.\u0000\u0000Keywords: Lipid membrane based nanosensors; Nanoyechology; Graphene and ZnO electrodes; Food toxicants; Environmental pollutants; Clinical analysis","PeriodicalId":15265,"journal":{"name":"Journal of Chemistry and Applications","volume":"430 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-11-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90180355","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

Nanocomposites and their employment as scavengers of water pollutants 纳米复合材料及其作为水污染物清除剂的应用

Journal of Chemistry and Applications Pub Date : 2019-03-15 DOI: 10.36811/JCA.2019.110003

C. Araujo, Ziani S. B. Souza, M. A. M. Sobrinho, M. Ghislandi, T. Fraga

引用次数: 1

Application of Polyhedral Spherical Packing Precipitation Technology in Water Plant Reform 多面体球形填料沉淀技术在水厂改造中的应用

Journal of Chemistry and Applications Pub Date : 2019-03-05 DOI: 10.36811/JCA.2019.110002

Li Yi

{"title":"Application of Polyhedral Spherical Packing Precipitation Technology in Water Plant Reform","authors":"Li Yi","doi":"10.36811/JCA.2019.110002","DOIUrl":"https://doi.org/10.36811/JCA.2019.110002","url":null,"abstract":"On the basis of micro flocculation interception sedimentation technology, polyhedral spherical packing is used as intercepting material in sedimentation tank. The process utilizes the characteristics of polyhedral sphere to make flocs and water move relatively, and continuously change the direction of water flow to produce turbulent vortices. When water moves in a vorticity, solid particles move relative to the flow along the radial direction under the action of centrifugal inertia force, which provides for the radial collision of particles with different scales along the vortices. Under these conditions, the micro flocs collide and aggregate continuously as they pass through the blades, and the concentration of alum in the water is increased. Finally, the precipitation is removed under the action of gravity. The process is applied to the reconstruction of Miluo New City Waterworks, and the original inclined pipe sedimentation tank is retained and put into operation. The results show that the turbidity of effluent from polyhedral spherical sedimentation tank can reach below 2NTU, while that from inclined tube sedimentation tank is above 2NTU. The treatment effect of polyhedral sphere on low turbidity water is better than that of inclined tube, which provides a reference for the transformation of small and medium-sized water plants in rural areas.\u0000\u0000Keywords: Polyhedral sphere packing; Interception sedimentation; Technological transformation; Engineering application","PeriodicalId":15265,"journal":{"name":"Journal of Chemistry and Applications","volume":"131 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77172637","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

Synthesis and Characteristics of Rice Husk Ash Based Magnetic Hydrogel (RHA-MH) for H2 Generation 稻壳灰基制氢磁性水凝胶(rham - mh)的合成及性能

Journal of Chemistry and Applications Pub Date : 2019-01-23 DOI: 10.36811/JCA.2019.110001

I. Dahlan, Muhammad Syafieq Abd Halim

{"title":"Synthesis and Characteristics of Rice Husk Ash Based Magnetic Hydrogel (RHA-MH) for H2 Generation","authors":"I. Dahlan, Muhammad Syafieq Abd Halim","doi":"10.36811/JCA.2019.110001","DOIUrl":"https://doi.org/10.36811/JCA.2019.110001","url":null,"abstract":"Abstract: In this study, magnetic hydrogel was synthesized from rice husk ash (RHA-MH) using two methods, i.e. sol-gel and cross-linking methods. The prepared rice husk ash based magnetic hydrogel (RHA-MH) were used as a catalyst for H2 generation through hydrolysis of sodium borohydride (NaBH4). Factors effecting hydrolysis reaction such as effect of RHA calcination temperature and method used to synthesis the catalyst were investigated. The RHA-MH1200 synthesised via cross-linking and sol-gel methods (using RHA calcined at 1200°C) shows the shortest time taken (5.64 min and 11.18 min, respectively) to produce 40 mL of H2 gas as compared to RHA-MH600 (i.e. 10.47 min and 13.18 min respectively, for both methods using RHA calcined at 600°C). The prepared and spent RHA-MH were also characterized using Scanning Electron Microscopy (SEM)/Energy Dispersive X-ray (EDX) analysis. From SEM image, it could be concluded that silica (SiO2) could successfully be utilized as the supporting material for stabilizing magnetic iron oxide (Fe3O4) nanoparticles. The SEM image also showed that the overall structure was relatively porous. Moreover, the SEM images of magnetic hydrogel before and after the hydrolysis of NaBH4 exhibited similar physical structures.\u0000\u0000Keywords: Hydrogen; NaBH4 hydrolysis; Rice husk ash based magnetic hydrogel (RHA-MH); Sol-gel; Cross-linking","PeriodicalId":15265,"journal":{"name":"Journal of Chemistry and Applications","volume":"109 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-01-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79192041","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

Photo-Curing Schemes to Cure the Epoxy Resins and their Impacts on Curing Process 环氧树脂光固化方案及其对固化过程的影响

Journal of Chemistry and Applications Pub Date : 2018-12-30 DOI: 10.13188/2380-5021.1000010

引用次数: 2

Hardness in Drinking-Water, its Sources, its Effects on Humans and its Household Treatment 饮用水的硬度、来源、对人体的影响及其家庭处理

Journal of Chemistry and Applications Pub Date : 2018-12-30 DOI: 10.13188/2380-5021.1000009

引用次数: 25

Evaluation of the Effect of Consciousness Energy Healing Treatment on the Physicochemical and Thermal Properties of Silver Oxide 意识能量治疗对氧化银理化和热性能影响的评价

Journal of Chemistry and Applications Pub Date : 2018-11-07 DOI: 10.13188/2380-5021.1000011

A. Branton, M. Trivedi, Dahryn Trivedi, G. Nayak, S. Jana

{"title":"Evaluation of the Effect of Consciousness Energy Healing Treatment on the Physicochemical and Thermal Properties of Silver Oxide","authors":"A. Branton, M. Trivedi, Dahryn Trivedi, G. Nayak, S. Jana","doi":"10.13188/2380-5021.1000011","DOIUrl":"https://doi.org/10.13188/2380-5021.1000011","url":null,"abstract":"Silver oxide has many applications in the pharmaceuticals industry, but it is insoluble in many solvents and sensitive to light. The aim of this study was to evaluate the impact of the Trivedi Effect® on the physicochemical and thermal properties of silver oxide using modern analytical techniques. The silver oxide test sample was divided into two parts, one part of the test sample was considered as a control sample, whereas the other part received the Biofield Energy Treatment remotely by a renowned Biofield Energy Healer, Alice Branton and termed as a treated sample. The PXRD peak intensities and crystallite size were significantly altered ranging from -37.33 to 17.89% and -63.23% to 230.12%, respectively; however, the average crystallite size was significantly decreased by 18.13% in the treated silver oxide compared with the control sample. The particle size values were significantly decreased by 36.02%(d10), 26.15%(d50), 23.46%(d90), and 26.15%{D(4,3)}, respectively; therefore, the specific surface area was significantly increased by 61.94% in the treated sample compared with the control sample. The latent heat of fusion of the treated silver oxide was significantly decreased by 43.29% compared with the control sample. The total weight loss was increased in the treated sample by 8.13% compared with the control sample. The Trivedi Effect®-Consciousness Energy Healing Treatment introduced a new polymorphic form of silver oxide which may show better solubility, dissolution rate, absorption, and bioavailability of silver oxide in the pharmaceutical formulations and advantageous for the industry using it as a raw material.","PeriodicalId":15265,"journal":{"name":"Journal of Chemistry and Applications","volume":"8 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75172751","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