Journal of Biosensors and Bioelectronics最新文献

{"title":"Brain-computer-interface based automatic control of robo-rat using a-star","authors":"Anantachai Naijit, M. Parnichkun, Chailerd Pichitpornchai","doi":"10.15406/IJBSBE.2018.04.00108","DOIUrl":"https://doi.org/10.15406/IJBSBE.2018.04.00108","url":null,"abstract":"Robots have been applied to the tasks which are not appropriate for human; for examples dangerous, tough, dirty tasks or the tasks which require high accuracy, good repeatability, quick motion. Nowadays, rescue robots are applied to explore unknown areas or even to rescue victims after disasters because of their several superior performances over human. Due to flexibility and intelligent limitation of robots, they cannot be applied efficiently in complicated situations; such as search and rescue of survivals in collapsed structures after big disasters. Hence, the concept of animal robot was proposed by scientists and researchers to overcome limitations of the traditional robots. Recently, results of the researches on robo-animals which are controlled by stimulating of certain brain sites are successful. Shimoyama et al.,1 from the University of Tokyo developed a remote-control cockroach.1 Research on Robo-rat was accomplished by Talwar et al.,3 from New York University.2,3 Hirotaka et al.,4 could control the wings and related behaviors of beetles by implanting electrical electrodes on the beetles’ brains and muscles.4 It is widely known that brain machine interface (BMI) has a variety of advantages. There are large number of BMI applications; such as in medical services and in neuroscience researches. Basically, electrodes are used for electrical stimulating by connecting cables between the stimulators and the electrodes that are implanted to animal brain. The tethered stimulation does not only restrict the freedom of animal movement but also distract its attention. In order to solve the problem, tele-stimulation systems was employed to transmit stimulation signal via wireless communication.3 The telestimulation system should be small and light to avoid distraction of animal movement. In this paper, the brain computer interface on Robo-rat is proposed.","PeriodicalId":15247,"journal":{"name":"Journal of Biosensors and Bioelectronics","volume":"34 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91103232","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":"Nonlinear transfer function’s approach to non-invasive glucose measurement","authors":"Andres Garcia, G. Monte","doi":"10.15406/ijbsbe.2018.04.00109","DOIUrl":"https://doi.org/10.15406/ijbsbe.2018.04.00109","url":null,"abstract":"Diabetes mellitus is a pathological condition that renders the blood glucose concentration level variable during the day (see for instance).1 It is well known that a poor regulation of blood glucose concentration leads severe complications such as cardiovascular diseases, damage of blood vessels; stroke, etc (see the survey and the references therein).2 For this reason a correct in-vivo measurement of glucose concentration is of vital importance being classified according to: invasive, minimally invasive, non-invasive. As it is clear, a portable non-invasive device is always desirable to alleviate the patient pain with several measurements a day. However, the development of a noninvasive device is a long story open problem (see for instance).3 Among the non-invasive techniques, the use of Near Infrared Spectroscopy (NIRS) appeared very promising (see).2 However, using NIR leads the great unsolved calibration for drawback different patients, even with the advantages of high reflective signals compared to mid-range and skin penetration of about 100 mm (see for instance)4 and the use of FFT. To overcome this drawback, this paper proposes replacing static FFT models using a novel technique: nonlinear transfer functions FFT based point of view (see for instance for a detail on nonlinear transfer functions).5","PeriodicalId":15247,"journal":{"name":"Journal of Biosensors and Bioelectronics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89745193","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 pneumatic photonic structure and precise optical indication of pressure over time inside the fluid flow","authors":"E. Glushko, A. Stepanyuk","doi":"10.15406/ijbsbe.2018.04.00107","DOIUrl":"https://doi.org/10.15406/ijbsbe.2018.04.00107","url":null,"abstract":"The artificial periodic structures like layered photonic crystals may serve as a means of measurement for the processes periodic in time peculiar to living organisms. There are a lot of periodic phenomena concerned with the blood and lymph system functioning in a living body. One of them is so called Mayer waves of pressure in arteries caused by oscillations in human receptor control systems.1–3 The time dependinged processes of such kind and many other reasons like nature of the hypertension manifestations put forward precise pressure indicators as important optical instruments in the Biometry.4,5 The fine structure of pressure and local temperature time dependencies would make clear the nature of processes in human body. Though the outstanding optical features of photonic crystals have been first mentioned in Rayleigh study,6 a tide of the modern applications in a wide area was began from works of Eli Yablonovitch & Sajeev John.7,8 Various properties of photonic structures useful to create perfect dielectric mirrors, high-performance optical filters, key elements of logic gates, controlled mirrors or flexible waveguides and for many other applications were discussed since then.9–13 In this study, we focus on the use of opto-mechanical properties of the pneumatic photonic medium as a means to indicate pressure during a time depended process inside the flood flow.","PeriodicalId":15247,"journal":{"name":"Journal of Biosensors and Bioelectronics","volume":"97 1","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2018-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89234218","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":"Increase the photostability of aqueous dispersed QDs using surfactants as stabilizing agent under long- time UV-light irradiation","authors":"A. Morshed","doi":"10.15406/IJBSBE.2018.04.00106","DOIUrl":"https://doi.org/10.15406/IJBSBE.2018.04.00106","url":null,"abstract":"Quantum dots (QDs) have attracted a great deal of attention over the past two decades because of their unique photochemical and photo physical properties. Colloidal semiconductor quantum dots (QDs) have great potential as a new class of fluorophores for biological and biomedical imaging because of high brightness, long-term photostability and single-light source excitation for multicolored QDs.1,2 The syntheses of monodispersed fluorescent QDs are generally performed in organic solvents with surface passivation by alkyl phosphine oxides such as trioctylphosphine oxide (TOPO).3,4 The resulting QDs are soluble only in nonpolar solvents that making them difficult to use for biological application. So far, many synthetic methodologies for the preparation of water-soluble QDs have been developed by surface modifications with amphiphilic compounds including thiols1,2,5–8 polymers,9,10 phpholipids.11 In recent years, there has been great progress in synthetic methods of quantum dot production, which made large scale preparation of QDs with high quality and narrow size distribution possible. Luminescent QDs have been successfully attached to protein, sugar, and other biologically active agents.9,12–14 Among the various types of modified QDs have been studied most thoroughly due to their possible applications in biological disciplines. However, consideration of QDs behavior at biological interfaces, e.g., cell membranes, is one of the most important issues requiring further study prior to implementation in real applications. Currently, few studies have been conducted regarding surface chemistry properties of quantum dots at biological interfaces. Quantum dots synthesized in organic solvents are insoluble in water. Hence a challenge is how to make the highquality hydrophobic quantum dots soluble in water and also active in bioconjugate reactions. Ligand exchange inevitably alters the chemical and physical states of the quantum dot surface atoms and in most cases dramatically decreases the quantum efficiency of the quantum dots, thiol-based molecules (e.g.,mercaptocarbonic acids) may form disulfides over time and come off from the quantum dot surface and finally the quantum dots aggregate and precipitate out of water. Surface functionalization of quantum dots can improve the solubility but reduce the quantum efficiency.","PeriodicalId":15247,"journal":{"name":"Journal of Biosensors and Bioelectronics","volume":"4 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-05-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75333661","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":"The use of ionic implantation in the synthesis nano palladium for biosensors","authors":"V. Honcharov, V. Zazhigalov","doi":"10.15406/ijbsbe.2018.04.00105","DOIUrl":"https://doi.org/10.15406/ijbsbe.2018.04.00105","url":null,"abstract":"The rapid development of biosensor technologies and the expansion of the requirements determine the necessity for scientists to search of new materials and new technologies.1–5 Moreover, these problems are caused not only by the interest of scientists in this topic, but also by an increase attention of industrial and medical workers.6 The development of biology, pharmacy, medicine and, in particular, biochemical and biophysical methods of analysis and control leads to the search for new designs of electrochemical, photosensitive, thermal sensors and biosensors.3,7–9 Recently, a promising direction in biosensor material science is the use of nanomaterials, such as nanoparticles, nanocomposites, nanotubes, etc.3,4,7,8,10 The most common non-organic components of nanoparticles are precious metals (Au, Pt, Pd) deposited on various supports (steel, polymer, etc.).3,4,7,8 However, the effectiveness of biosensors also depends on the technology of active particles producing. In this respect, ionic implantation proved to be very successful. This technology permits to modify the surface layer of various materials –supports (most often metals, alloys) by introducing target ions (Ti, Ni, Cr, Al, etc.)11–14 and thereby create substrates for the active components deposition. Thus, the aim of the work is to study the possibility of ionic implantation using in the synthesis of palladium nanoparticles in the aspect of obtaining materials for biosensors.","PeriodicalId":15247,"journal":{"name":"Journal of Biosensors and Bioelectronics","volume":"46 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-05-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91112656","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":"Mercury electrode as a tool/sensor for pollutants monitoring in natural waters; advantages and disadvantages regarding moving to “green” electrochemistry","authors":"I. Ciglenečki, M. Marguš, Palma Orlović-Leko","doi":"10.15406/ijbsbe.2018.04.00104","DOIUrl":"https://doi.org/10.15406/ijbsbe.2018.04.00104","url":null,"abstract":"Green Chemistry or Sustainable Chemistry is defined by the EPA1 as “the design of chemical products that reduce or eliminate the use of hazardous substances”. In recent years there are great expectations that chemists will produce greener and more sustainable chemical processes. In this direction, relevant benefits from “green” electrochemical activities (better control, higher selectivity, safer operations, milder conditions, and the use of electrons as a cheap reagent) were found. Some important instances of “green” electrochemistry are detectors and bio-detectors for environmental analysis (detection of pollutants). Since the invention of polarography, the Hg electrode was established as the preferred electrode for use in electrochemistry due to the high over potential for hydrogen evolution (which enables work at moderately negative potentials), as well as renewability of the electrode surface.2 The current trend of “green” chemistry, that encourages avoiding the use and generation of toxic substances, as well as recent EU regulations that have prohibited exporting and storing metallic Hg, have led to the search of competitive electrodes fabricated with minimal amount of Hg or definitely with other materials. However, in comparison to solid electrodes, Hg has many advantages which cannot easily be ignored and replaced in the move towards “green” electrochemistry by use of solid electrodes when characterizing the surface active (SA) fraction of organic matter as well as sulfur species in natural waters.2–6","PeriodicalId":15247,"journal":{"name":"Journal of Biosensors and Bioelectronics","volume":"25 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88192660","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":"Biosensors for detection of hidrogen perokside, L-ascorbic acid and catechol in form of student experiments","authors":"Namir Halilović, Azra Bašić, M. Dacić","doi":"10.15406/ijbsbe.2018.04.00103","DOIUrl":"https://doi.org/10.15406/ijbsbe.2018.04.00103","url":null,"abstract":"The biosensors are based on the electrons movement, i.e. electronic current determination as a reaction of enzyme-catalyzed redox reaction. Generally a normal contact voltage passes through the electrodes to analyze. In the enzymatic reaction which produces the substrate or product can transfer the electrons with the surface of electrodes to be reduced. As a result an alternate current flow can be measured. The substrate concentration is directly proportional to the magnitude of the current. The reduction of oxygen is acquired through the oxygen electrodes and it is a simple way to from an amperometric biosensor (Figure 2). The example is the determination of glucose by glucose. The above description is about the first generation of amperometric biosensor and it has a direct transfer of electrons which are released from the electrodes are having some difficulties. The second generation amperometric biosensors are developed in a mediator takes the electrons and transfer to the electrodes.","PeriodicalId":15247,"journal":{"name":"Journal of Biosensors and Bioelectronics","volume":"104 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85508956","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":"Is the eyespot a natural biosensor? observed from the perspective of a photoelectric sensor","authors":"Omar David Pino, L. Atehortúa","doi":"10.15406/IJBSBE.2018.04.00101","DOIUrl":"https://doi.org/10.15406/IJBSBE.2018.04.00101","url":null,"abstract":"that they capture the direction of light intensity and redirect it towards a photoreceptor, which consists of a multilayer membrane structure of photoreceptor protein that, when photo activated, produces an electrical charge similar to nerve impulses in visual processes:2 This charge determines the flagellar movement of the alga therefore its location in the water column in the optimal illumination area. Barsanti et al.,3 define this ocular-photoreceptor-flagella stain configuration as a simple but complete visual system. What makes this system analogous to other types of more complex vision is the presence of this photoreceptor protein, “Rhodopsin”, which consists of a protein part called opsin organized in 7 transmembrane helices and a lightabsorbing group, the retinal (eg the chromophore).4 This protein is very widely distributed in prokaryotes, eukaryotic algae,4 humans and other invertebrate animals5 and is responsible for converting photons into chemical signals that additionally stimulate biological processes in the nervous system of the latter two. In this case, the brain is the organ capable of translating these electrical signals into optical signals generating vision, because that is where all the images obtained that travel to different parts of it in the form of electrical impulses are generated6 and although microorganisms do not possess this specialized organ, we can not deny the fact that they possess all the machinery necessary to generate a vision similar to animals.","PeriodicalId":15247,"journal":{"name":"Journal of Biosensors and Bioelectronics","volume":"50 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2018-04-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82249401","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":"Towards a better adaptability of hand prostheses to improve its acceptance by amputees","authors":"J. J. V. Mayor, D. Rodríguez","doi":"10.15406/ijbsbe.2018.04.00100","DOIUrl":"https://doi.org/10.15406/ijbsbe.2018.04.00100","url":null,"abstract":"Improving the functionality of hand prostheses using non-invasive techniques controlled by the user intention continues being a focus of interest. Although myoelectric control has been widely studied, there are still lacks in the functionality and its applicability in real-time. Additionally, the application of myoelectric prostheses on amputees is still a challenge due to different factors related to non-clinical environments, as well as variations inherent in these subjects. This opinion includes a brief perspective of the trends to be addressed, in order to improve the functionality of these prosthetic devices.","PeriodicalId":15247,"journal":{"name":"Journal of Biosensors and Bioelectronics","volume":"59 1","pages":"1-2"},"PeriodicalIF":0.0,"publicationDate":"2018-04-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91526887","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":"Optimization of heating-temperature on carbothermal reduction of alumina for production of aluminum","authors":"A. Chahtou, Rabie Benioub, K. Itaka","doi":"10.15406/IJBSBE.2018.04.00099","DOIUrl":"https://doi.org/10.15406/IJBSBE.2018.04.00099","url":null,"abstract":"Recently the study of aluminum-based surface plasmon resonance sensors (SPR) for real-time, label-free, and multiplexed detections for chemical and biomedical applications have attracted a considerable attention due to the effective stability of aluminum compared to conventional noble metals such as Ag and Au. Currently, the electrolytic Hall-Heroult process represents the conventional and commercialized process for the production of aluminum from alumina. However, this process suffers from higher cost due to its immense energy requirements, and a number of by-processes implicated to reach the final product. In this paper, to overcome such advantages of the conventional process, the carbothermal reduction process of alumina using an induction heating furnace and carbon as a reductant agent were investigated to determine the optimum heating temperature condition for the achievement of a higher yield of the process. The phase diagram for the aluminum-oxygen-carbon represents quite a valuable asset. Therefore it was simulated and used to determine theoretically the temperature and gas conditions used for the experimental process. The optimum heating temperature of 1750oC was determined based on the analyzing of the experimental results based on the comparison of the obtained Al yield for various heating temperature profiles.","PeriodicalId":15247,"journal":{"name":"Journal of Biosensors and Bioelectronics","volume":"13 1","pages":"1-6"},"PeriodicalIF":0.0,"publicationDate":"2018-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86610612","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}