Journal of Biosensors and Bioelectronics最新文献

{"title":"EEG - Controlled Wheelchair Movement: Using Wireless Network","authors":"P. K. Charles, M. Krishna, Praneeth Kumar Gv, D. LakshmiPrasad","doi":"10.4172/2155-6210.1000252","DOIUrl":"https://doi.org/10.4172/2155-6210.1000252","url":null,"abstract":"This project discusses about a brain controlled wheel chair based on Brain–computer interfaces (BCI). BCI’s are systems that can bypass conventional channels of communication (i.e., muscles and thoughts) to provide direct communication and control between the human brain and physical devices by translating different patterns of brain activity into commands in real time. The intention of the project work is to develop a robot that can assist the disabled people in their daily life to do some work independent of others. Here, we analyze the brain wave signals. Human brain consists of millions of interconnected neurons, the pattern of interaction between these neurons are represented as thoughts and emotional states. According to the human thoughts, this pattern will be changing which in turn produce different electrical waves. A muscle contraction will also be generate a unique electrical signal. All this electrical waves will be sensed by the brain wave sensor it will convert the data into packets and transmit through Bluetooth medium. Level analyzer unit (LAU) will receive the brain wave raw data and it will extract and process the signal using MATLAB platform. Then the control commands will be transmitted to the robot module to process. With this entire system, we can move a robot according to the human thoughts and it can be turned by blink muscle contraction.","PeriodicalId":15247,"journal":{"name":"Journal of Biosensors and Bioelectronics","volume":"29 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2018-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81589557","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":"Radiofrequency ablation: a review of current knowledge, therapeutic perspectives, complications, and contraindications","authors":"M. S. Barajas, T. Fraga, M. A. E. Acevedo, Rafael Guzmán Cabrera","doi":"10.15406/ijbsbe.2018.04.00098","DOIUrl":"https://doi.org/10.15406/ijbsbe.2018.04.00098","url":null,"abstract":"Ablation is the thermal or chemical therapy applied directly to the tissue to cause heat induced cell death. The most popular ablative procedure is radiofrequency which is used to treat certain types of benign neoplasms. Radiofrequency ablation consists of heating the tumor by exposing it to a varying electric field applied using electrodes. The electric field causes the oscillation of free charges and ions through the tissue, producing currents and consequently resistive heating. The radiofrequency ablation uses needle-type electrodes that are introduced directly into liver tumors through laparotomy, laparoscopy, or radiologically guided percutaneously.","PeriodicalId":15247,"journal":{"name":"Journal of Biosensors and Bioelectronics","volume":"46 1","pages":"1-3"},"PeriodicalIF":0.0,"publicationDate":"2018-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74222113","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":"Heart beat rate monitoring using optical sensors","authors":"H. Shirzadfar, M. Ghaziasgar, Zeinab Piri, M. Khanahmadi","doi":"10.15406/IJBSBE.2018.04.00097","DOIUrl":"https://doi.org/10.15406/IJBSBE.2018.04.00097","url":null,"abstract":"The heartbeat is a unit for counting the intensity of the heart function, whose unit is the beats per minute (bpm). The heart has pacemaker cells, which, by creating electrical waves, these cells cause heart rhythm from the right atrium with its spread throughout the heart, blood pumping occurs. The human heart naturally breaks about 60 to 100 bpm, which can vary with different conditions. Any disorder in heartbeat is a type of disease in the heart that can be detected by human beings by measuring beats in different ways.We present a heart rate measuring device in this paper, which firstinfrared light is transmitted by the infrared sensor (IR LED TX) to the fingertip and then reflects light on a Photodiode RX sensorand converted to a suitable signal by the Signal Conditioning, and suitable signal sent to the microcontroller, finally, the heart rate is measured by processing and analysis. \u0000 \u0000 On the device, when the power button is pressed, the user places his fingertip on the sensors then the microcontroller key is pressed and then the heart rate is measured in 15 seconds and displayed on the LCD screen. Using this device, it can be measured easily and in a short time, heart rate with a non-invasive method without harm to the human body.","PeriodicalId":15247,"journal":{"name":"Journal of Biosensors and Bioelectronics","volume":"83 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2018-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82597793","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":"Technological platforms used for the screening of new antiviral drugs","authors":"R. Lara, Diana Marcela Buitrago Ramírez","doi":"10.15406/IJBSBE.2018.04.00096","DOIUrl":"https://doi.org/10.15406/IJBSBE.2018.04.00096","url":null,"abstract":"One of the main characteristics of viruses is their high genetic diversity that generates viral variants with mutations associated with the resistance of antiviral drugs, which leads to therapeutic failure, increases morbidity and mortality and decreases the quality and life expectancy of infected individuals. That is why the need arises to find new alternatives that accept changes in the strongest and most effective devices. Modern pharmacological designs can be made through technological platforms, in a faster, cheaper and more effective way, which offer new promising compounds that act in host-virus binding sites. In this review, we describe the pharmacological objectives and the use of technological tools for the development of new antiviral drugs.","PeriodicalId":15247,"journal":{"name":"Journal of Biosensors and Bioelectronics","volume":"7 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-03-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"73821780","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":"Features of gold nanoparticles application for bio- and nanosensors","authors":"L. Rieznichenko","doi":"10.15406/IJBSBE.2018.04.00095","DOIUrl":"https://doi.org/10.15406/IJBSBE.2018.04.00095","url":null,"abstract":"The paper presents short review of the features of gold nanoparticles application for various biosensors and nanosensors. The main specific properties of gold nanoparticles which determine their use in the development of different types of biosensors and nanosensors are discussed in brief.","PeriodicalId":15247,"journal":{"name":"Journal of Biosensors and Bioelectronics","volume":"57 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83584965","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":"Effect of cu and co nanoparticles based complex on stratification of grape grafts","authors":"E. A. Shkopinskij, Talankova-SeredaTE, K. Liapina, Dulnev Pg","doi":"10.15406/IJBSBE.2018.04.00094","DOIUrl":"https://doi.org/10.15406/IJBSBE.2018.04.00094","url":null,"abstract":"South and South-Eastern regions of Ukraine have unique climatic conditions for wine-making. The latter today is represented by single farmers, therefore, its expansion requires application of modern biotechnological methods, namely method of isolated cells, tissues and organs culture in vitro, micro reproduction for growing the planting material free of bacterial cancer and other diseases.1 It has well known that the technical varieties of grapes have a number of problems. One of them is a tendency of this crop to bacterial, fungal and virus diseases, which significantly reduce capacity and longevity of plantings. An infection can take place through the soil as well as the grapevine, then the disease is transmitted during grafting, since a graft can contain a pathogen and be dangerous for the whole future planting.2 Thus, it is necessary to get a sufficient number of recovered in vitro microclone cultures and adapt them to in vivo conditions.3,4 Johanniter grape technical variety was used as an object of investigation. It should be noted that the Johanniter variety is a complex interspecies hybrid of German breeding, resistant to mildew, oidium and having high winter resistance. It is known fact that microelements play an important role in the regulation of growth processes, including in the in vitro cultures, since they are precursors and stimulators of synthesis and operation of many enzymes. Thus, copper through enzymes effects carbon and nitrogen metabolism, increases plants’ resistance due to effect on growth inhibitors of phenolic nature. Presence of nanopowders of copper of 2,0-2,5 nm size in a nutrient medium when coaching the wheat seeds and vetch in a concentration range of 0,01-1,0 g per a hectare seeding rate provoked a significant increase in germinating energy and similarity.5 Cobalt is contained in plants in ionic form and as a constituent of vitamin B12, activates phosphoglyucomatase, arginase and nitrogenase, enolases and kinases, participates in oxidation processes and synthesis of leggemoglobin. The nanoparticles have an extremely high activity and their size corresponds to the size of living cells, therefore, biogenic metals in nanoparticle form are more efficient and safe perception by plants, and the doses necessary to put them into the nutrient medium are significantly smaller. According to references, 1-10 mg/ l6 is a physiologically grounded concentration of working solution of biogenic metals nanoparticles. Our previous experiments proved positive influence of cobalt and copper nanoparticles on horsemint (M. longifolia).7,8 Therefore, investigation of effect of the biogenic metals nanoparticles on growth characteristics of grape explants, depending on their concentration, is relevant. Thus, the purpose of our research is to study the processes of morphogenesis in vitro in the Johanniter grape technical variety in cultivation of the explants on modified Murasige and Skoog nutrient medium with different content of copper a","PeriodicalId":15247,"journal":{"name":"Journal of Biosensors and Bioelectronics","volume":"15 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89365130","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":"Photonic Crystal Fibers for Sensing Applications","authors":"Boni Amin Sm, M. M. Hossain, H. S. Mondal, Md. Ekhlasur Rahaman, P. K. Mondal, Md. Mehadi Hasan Mahasin","doi":"10.4172/2155-6210.1000251","DOIUrl":"https://doi.org/10.4172/2155-6210.1000251","url":null,"abstract":"This article reviews the recent progress in optical sensors using photonic crystal fiber (PCF) technology, which is newly adopted beyond conventional optical fibers (OFs) due to their unique geometric structures. PCFs have some exceptional properties. It will focus the most conversant sensing application areas with their consistent parameters and perception. Numerous PCF sensors are available in day-to-day world. Researchers and technologists are working on PCFs with more than 15-20 application areas. In this article, sensing applications in physical and bio- chemical with their diverse types are reviewed recent times. Physical sensors as temperature, curvature, torsion, vibration, pressure, refractive index, evanescent; where the bio-chemical sensors as humidity, gas, pH, liquid etc. has been reviewed in this article. The review shows that, most physical sensing applications are varied with their different structures and parameters.","PeriodicalId":15247,"journal":{"name":"Journal of Biosensors and Bioelectronics","volume":"37 1","pages":"1-7"},"PeriodicalIF":0.0,"publicationDate":"2018-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77300915","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":"Synthesis and Characterization of Nanocrystalline Silicon Carbide Thin Films on Multimode Fiber Optic by means 150 MHz VHF-PECVD","authors":"M. H. Younus, Shahrouz Zamani Khalajabadi, A. Abu, O. F. Ameen, N. Ahmad, N. Redzuan, R. R. Ibrahim","doi":"10.15406/IJBSBE.2018.04.00093","DOIUrl":"https://doi.org/10.15406/IJBSBE.2018.04.00093","url":null,"abstract":"","PeriodicalId":15247,"journal":{"name":"Journal of Biosensors and Bioelectronics","volume":"41 1","pages":"1-5"},"PeriodicalIF":0.0,"publicationDate":"2018-02-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72650767","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":"Compact Sensor on the Basis of the “Silicon on Isolator” Waveguide Structure for Express Detecting of Ammonia Solutions","authors":"Masalskii Nv","doi":"10.15406/ijbsbe.2018.04.00092","DOIUrl":"https://doi.org/10.15406/ijbsbe.2018.04.00092","url":null,"abstract":"Now great interest to optical methods of detection of the liquid and gaseous substances especially harmful and dangerous to the person, for example, of ammonia is marked. One of the perspective directions of implementation of these methods is the thin-film SOI (silicon on insulator) technology, in particular, application of the waveguide structures as a sensor element. Interest in such devices is caused by a row of their advantages. The SOI waveguide structures thank to the properties (excellent optical characteristics, miniaturization, firmness in hostile environment) give qualitatively new opportunities for optical methods of detection of liquid and gaseous substances in a broad range of applications. In this paper the possibility of implementation of selective detection of liquid ammonia on the basis of the heterogeneous quasi single-mode SOI waveguide structures by means of a diffraction grating element is discussed.","PeriodicalId":15247,"journal":{"name":"Journal of Biosensors and Bioelectronics","volume":"70 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2018-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79974676","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":"Review on technologies used to design RF diplexers","authors":"A. Chinig","doi":"10.15406/IJBSBE.2018.04.00091","DOIUrl":"https://doi.org/10.15406/IJBSBE.2018.04.00091","url":null,"abstract":"In recent years, the digital world has seen the advent of new mobile applications with bandwidthintensive activities. In fact, this phenomenal evolution of systems and applications dedicated to wireless communication has been a direct consequence of scientific and technical advances in this field. In this perspective, improving the use of these applications requires a great need for bandwidth. In order to optimize the use of bandwidth, multiservice and multistandards wireless communication systems represent an attractive solution. In fact, realizing a multiservice system requires the use of the duplexing function, which allows a transceiver to carry out a bidirectional communication. For this purpose, two duplexing procedures are commonly used: TDD (Time-Division Duplexing) and FDD (frequency-Division Duplexing). Transceivers that use FDD duplexing require simultaneous operation of the transmitter and receiver that share the same antenna. For that, two separate bandwidths are used for transmission and reception. Therefore, it is necessary to use a diplexer consisting of two very selective filters one centered on the transmission band and the other on the receive band to separate the transmission and reception signals. Due to the finite isolation of the diplexer, strong leakage of the transmission signal desensitizes the receiving path. Thus, the design of this type of circuit is not simple and it is necessary to achieve a diplexer with high isolation and low insertion loss to ensure proper functioning of the entire system.","PeriodicalId":15247,"journal":{"name":"Journal of Biosensors and Bioelectronics","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79236106","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}