International journal of biosensors & bioelectronics最新文献

{"title":"Intelligent agents in biomedical engineering: a systematic review","authors":"P. B. Filho, T. Filgueiras","doi":"10.15406/IJBSBE.2020.06.00200","DOIUrl":"https://doi.org/10.15406/IJBSBE.2020.06.00200","url":null,"abstract":"The design and implementation of Multi Agent System (MAS) has gained more attention over the last 10 years due to the advance of artificial intelligence, wireless sensor network and microelectronic devices for the Internet of Things (IoT). IoT has ceased to be a novelty, becoming a reality in people’s daily lives, since wearable devices and smartphones have become a daily basis tool for a large part of the population. The level of resolution and detection of problems have become a bottleneck for such technologies, which the human error is not more admissible. Since heterogeneity and autonomy are desirable characteristics in IoT systems, especially when such systems are aimed at monitoring the health of their user, MAS is highly required. This research provides a systematic review on the use of MAS in biomedical engineering, focusing on interactions in healthcare environments, architecture and inter-agent communication.","PeriodicalId":92654,"journal":{"name":"International journal of biosensors & bioelectronics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"44133218","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":"Cardiac output at skin level: PPC vs. Fick method","authors":"R. Guzmán-Cabrera, A. Hernandez-Gutierrez, M. Hernández-González, T. Córdova-Fraga, P. L. González-Carrillo, A. Hernández-Rayas","doi":"10.15406/ijbsbe.2020.06.00199","DOIUrl":"https://doi.org/10.15406/ijbsbe.2020.06.00199","url":null,"abstract":"Hemodynamic monitoring is essential in the therapeutic guide of the critical patient. The pulsomagneto cardiac pressure gauge (PPC), is a non-invasive device, which records the cardiac output (CO) at the skin level and continuously. The objective of this work is determining the correlation of the GC measurement between the PPC system and the Fick Method in patients in the intensive care unit (ICU). It is a prospective, observational and longitudinal study. The CO was measured with both methods in 121 patients at admission, in addition to performing an analysis with Bland-Altman. As a Result of this work, the means of the CO by both methods did not show statistical differences p=0.05. The Sperman test reported a coefficient r=0.025, not significant p=0.77. The Bland-Altman analysis shows that the PPC overestimates the value of the GC at 3L. The results suggest that an imperfect standard was chosen. The pulse-magneto cardiac pressure gauge is operator-dependent. The PPC is a portable device for non-invasive monitoring of GC in critical patients.","PeriodicalId":92654,"journal":{"name":"International journal of biosensors & bioelectronics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43976004","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":"Winds and rain: the role of the biotic pump","authors":"P. Bunyard","doi":"10.15406/ijbsbe.2020.06.00198","DOIUrl":"https://doi.org/10.15406/ijbsbe.2020.06.00198","url":null,"abstract":"In 2007, Anastassia Makarieva and Victor Gorshkov came up with the Biotic Pump Theory (Makarieva A. a., 2007). The two scientists, mathematician/physicists at the Petersburg Nuclear Physics Institute, St Petersburg, Russia, described the Biotic Pump Theory (BPT) in terms of the fundamental laws of physics pertaining to the phase change when water evaporates and then condenses through the process of cloud-forming, as humid air rises in the troposphere and chills with altitude. The degree of water vapour saturation follows the Clausius-Clapeyron equation for ideal gases, taking into account temperature (Kelvin), relative humidity and barometric pressure.","PeriodicalId":92654,"journal":{"name":"International journal of biosensors & bioelectronics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49202333","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 brief feasibility study of wireless power transfer using strongly coupled magnetic resonance (SCMR) on cochlear implant at 11.7 MHz","authors":"B. Nukala, Lie Yc, Tam Q. Nguyen","doi":"10.15406/IJBSBE.2020.06.00194","DOIUrl":"https://doi.org/10.15406/IJBSBE.2020.06.00194","url":null,"abstract":"We report here a detailed 3-dimensional (3-D) electromagnetic (EM) simulation study on the feasibility of Wireless Power Transfer (WPT) using the strongly coupled magnetic resonance (SCMR) effect at MHz frequencies for potential biosensors applications such as cochlear implants. We have already demonstrated our SCMR results in the application of micro scale biosensors. 1 In this paper we have demonstrated the use of Strongly Coupled Magnetic Resonance (SCMR) technique in cochlear implants. SCMR is very useful for higher power transfer especially in near field magnetic resonance applications. We demonstrated a method to improve the efficiency of cochlear implant coils to maximize the power efficiency at MhZ frequencies. Our results show that SCMR can improve the power efficiency by 40% compared to the traditional 2-coil system.","PeriodicalId":92654,"journal":{"name":"International journal of biosensors & bioelectronics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47750376","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 article: air quality and characteristics of sources","authors":"Atef M. F. Mohammed, Inas A. Saleh, Nasser M Abdel-Latif","doi":"10.15406/ijbsbe.2020.06.00193","DOIUrl":"https://doi.org/10.15406/ijbsbe.2020.06.00193","url":null,"abstract":"Ambient air quality monitoring: Monitoring air quality indicators in ambient air provides data regarding the status of present air quality. It helps decision makers to put and evaluate environmental policies. Establishment of air quality monitoring network is based on the air quality indicators.2 The usual air quality indicators monitored include dust deposition, particulate matter (PM10 and PM2.5), nitrogen dioxide (NO2), sulfur dioxide (SO2), carbon monoxide (CO), ground level ozone (O3) and lead (Pb). Ambient monitoring is often necessary as a condition of Industrial Emissions Licensing, permit, planning condition,1","PeriodicalId":92654,"journal":{"name":"International journal of biosensors & bioelectronics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"46532969","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":"Register to skin level of the dicrotic wave: ultrasound vs. biomagnetism","authors":"Rafael Guzmán Cabrera, A. H. Rayas, T. Córdova-Fraga, Luis Antonio Rosas-Pacheco, Mauricio Sánchez-Barajas, E. Pérez-Careta","doi":"10.15406/IJBSBE.2020.06.00192","DOIUrl":"https://doi.org/10.15406/IJBSBE.2020.06.00192","url":null,"abstract":"The direct indicator of the number of pulsations recorded in a peripheral artery per unit of time of a person is the frequency of the cardiac pulse in the cardiovascular system, this pulse is manifested as a pressure wave caused by the expansion of the arteries changing from size and shape as they travel along the blood vessels. Materials and methods: This is a comparative cross-sectional study, conducted over six months in the city of León, GTO, in which 30 volunteers without a history of cardiovascular disease (20 women and 10 men) in an age range between 25 to 40 years. Results: 60 measurements of the pressure waves of the volunteers were recorded simultaneously, using ultrasound equipment and the cardiac pulse pressure (PPC), recording among them an important difference in obtaining the pulse waves through biomagnetism. Conclusion: The results suggest that the measurement modality with the PPC, in addition to being a simple and easy to apply procedure to obtain the carotid pulse signal compared to the signal obtained with the carotid ultrasound, offers potential as an alternative technique for pressure and arterial wavelength records at skin level.","PeriodicalId":92654,"journal":{"name":"International journal of biosensors & bioelectronics","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-10-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49384371","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":"Acquisition and recognition of ultrasonic signatures using multi-layer neural network","authors":"P. Bertemes-Filho, Maicol Peterson Gandolphi de Almeida","doi":"10.15406/ijbsbe.2020.06.00190","DOIUrl":"https://doi.org/10.15406/ijbsbe.2020.06.00190","url":null,"abstract":"Ultrasound systems used for object recognition and for the navigation of blind people through the environment are mostly composed of walking sticks that vibrate when approaching an object. In addition to vibrating systems, sound emission systems are also used to aid navigation for blind people,1 these systems are composed of cameras combined with ultrasonic sensors, only cameras or only ultrasonic sensors.2 A literature review by Almeida shows that from 2016 onwards there was a drop in the number of studies using ultrasound as the main means of object detection. The author explains that this drop is due to the fact that technologies using cameras for the recognition of objects and people are drawing the attention of the scientific sphere and more researches in this area are being developed.2 Ifukube3 performed tests for detecting an object by the generation of sounds and the use of ultrasonic sensors. He showed the importance of hearing low and high frequency sounds in order to improve the detection of the object’s position. Simultaneously, studies such as Nabhani’s4 & Manju’s7 & Velappa’s6 used neural networks for object recognition, having Nabhani used cameras and Manju and Velappa used ultrasonic sensors. These authors showed that the use of neural networks is a viable method for identifying objects.4,5 Neural networks are architectures used for machine learning, their main block is the neuron, a small functional unit. The neuron has an input and an output that is calculated through an activation function and a bias. The combination of several neurons forms the neural network with its activation functions, bias and weights. Figure 1 shows a neuron in the input layer with its input variables (X1, X2, ..., Xn), weights (P1, P2, ..., Pn), correction value (Bias B1), output intermediate value (V1), activation function (F) and output value (Y1).","PeriodicalId":92654,"journal":{"name":"International journal of biosensors & bioelectronics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-08-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43167718","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":"Intra-molecular origin of SNARF pH dependent fluorescence spectral properties","authors":"B. Wacogne, B. Gauthier-Manuel, Rutjaphan Kateklum, C. Pieralli","doi":"10.15406/ijbsbe.2020.06.00197","DOIUrl":"https://doi.org/10.15406/ijbsbe.2020.06.00197","url":null,"abstract":"pH sensitive fluorescent molecules were largely synthetized in order to monitor pH in liquids and more particularly the intracellular pH. The latter is related to the extracellular pH via ionic pumps. Dysregulation of these pumps directly affects biological processes. More generally, intracellular pH plays an important role in cells, enzymes and tissue activity like proliferation, apoptosis, resistance to drugs, ion transport or muscle contraction. Intracellular pH is also a key factor in many other biology fields which would be too long to present and outside the scope of this short paper.1 Using pH sensitive molecules, intracellular pH imaging is possible either in a direct fluorescence intensity imaging or ratiometric imaging techniques. For example, Hornig et al2 tested the diffusion of fluorescein and FITC in fibroblasts.2 Kaylor used SNARF in a ratiometric configuration at 570 nm and 620 nm in order to image tumors in mice,3 and found out that the pH was lower in the cancerous region. Gibbin and co-workers used the BCECF-AM pH indicator to monitor the effect of CO2 on intracellular pH with or without the use of a photosynthesis inhibitor in coral cells.4 Describing all the pH sensing molecules would be quite long and fastidious. Han and Burgess proposed a very complete review describing these molecules as described elsewhere.1 In this communication, we restrict our study to the case of the ratiometric indicator SNARF. SNARF exhibits a pKa equal to 7.5 which makes it a good candidate for sensing in the physiological pH range (about pH = 6 to 8). This molecule exhibits only two forms: protonated and deprotonated. Therefore, the fluorescence signal is due to two forms with relative contributions depending on the pH of the solution under test according to the law of mass action (see below). Each protonated or deprotonated form exhibits characteristic fluorescence and/or absorption spectra.5 Shifts between spectra obtained for protonated and deprotonated species can be exploited in order to perform a ratiometric measurement. In,5 discrepancies between pH measured using fluorescence and actual pH values were reported. This is mainly because not every proton participates in the acid-base equilibrium. Other works reported such discrepancies and attempts have been made to explain and/or correct them by mathematical means.6","PeriodicalId":92654,"journal":{"name":"International journal of biosensors & bioelectronics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67071949","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":"An android app for receiving, storing and exchanging blood pressure data way bluetooth, OCR and gesture input","authors":"José de Jesús Sandoval-Palomares, J. Yáñez-Mendiola","doi":"10.15406/IJBSBE.2020.06.00186","DOIUrl":"https://doi.org/10.15406/IJBSBE.2020.06.00186","url":null,"abstract":"Telemetry home, mobile technologies, and software application, has a positive effect onthe monitoring and management of some medical control parameters, and help to be more effective in the treatments, measuring blood pressure at home is becoming increasingly use by both clinicians and patients. This work implements a way to obtain information directly from commercial blood pressure devices,using application programming interface, without to have used the proprietary APP of the brand, use of the optical character recognition and the use of gestures using the fingers to write each of the blood pressure values; systole, diastole, pressure, date and time and send these data to a Web-DataBase way SMS message","PeriodicalId":92654,"journal":{"name":"International journal of biosensors & bioelectronics","volume":"2 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67071518","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 mini review on the use of biosensors for indirectly assisting the diagnosis of fibromyalgia","authors":"R. Faria, J. Silva","doi":"10.15406/ijbsbe.2020.06.00185","DOIUrl":"https://doi.org/10.15406/ijbsbe.2020.06.00185","url":null,"abstract":"Fibromyalgia (FM) is a syndrome known mainly for causing muscular and skeletal pain, whose etiology still remains unknown. Besides intense pain, FM patients can also present a clinical picture of fatigue, insomnia, headaches and intestinal changes. One of the most important challenges related to the disease is the difficult diagnosis, which can be confusing because it presents symptoms common in many other pathologies (like anxiety and depression). Some characteristics that can contribute to a better diagnosis are the differences in the level of certain biological molecules, such as some hormones and markers. The conversion of the information referring to the levels of these biological compounds into a measurable analytical signal is the focus of some biosensors recently reported in the literature. These devices are expected to collaborate in increasing the reliability of the indirect FM diagnostics. In this sense, this mini review presents an overview on the recent trends on the fabrication of some biosensors based on different transduction mechanisms and bioreceptors to detect analytes of interest for the indirect diagnosis of FM.","PeriodicalId":92654,"journal":{"name":"International journal of biosensors & bioelectronics","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"67071432","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}