Pub Date : 2011-04-19DOI: 10.1109/MECBME.2011.5752083
M. Hassan, A. Youssef, Y. Kadah
The evaluation of ultrasound system is measured by the development in analog and digital electronics. A modular field programmable gate array (FPGA)-based digital ultrasound beamforming is presented. The digital beamforming is implemented in Virtex-5 FPGA. The objective of this work is to develop a modular low-cost PC-based digital ultrasound imaging system that has almost all of its processing steps done on the PC side. The system consists of: two 8 channels block and reconstructed line block. The 8 channel block consist of: memory block to save the samples data after converted to fixed point type, delay block implemented by addressable shift register — the delay process is based on sampled delay focusing (SDF) — and M-code block applied the summation of each RF channel samples. The reconstructed block consists of pipelined adder to apply the summation of the two 8 channels blocks. The power consumption and device utilization was acceptable. Also it is possible to build 16-,32-,64-, and 128-channel beamformer. The hardware architecture of the design provided flexibility for beamforming.
{"title":"Modular FPGA-based digital ultrasound beamforming","authors":"M. Hassan, A. Youssef, Y. Kadah","doi":"10.1109/MECBME.2011.5752083","DOIUrl":"https://doi.org/10.1109/MECBME.2011.5752083","url":null,"abstract":"The evaluation of ultrasound system is measured by the development in analog and digital electronics. A modular field programmable gate array (FPGA)-based digital ultrasound beamforming is presented. The digital beamforming is implemented in Virtex-5 FPGA. The objective of this work is to develop a modular low-cost PC-based digital ultrasound imaging system that has almost all of its processing steps done on the PC side. The system consists of: two 8 channels block and reconstructed line block. The 8 channel block consist of: memory block to save the samples data after converted to fixed point type, delay block implemented by addressable shift register — the delay process is based on sampled delay focusing (SDF) — and M-code block applied the summation of each RF channel samples. The reconstructed block consists of pipelined adder to apply the summation of the two 8 channels blocks. The power consumption and device utilization was acceptable. Also it is possible to build 16-,32-,64-, and 128-channel beamformer. The hardware architecture of the design provided flexibility for beamforming.","PeriodicalId":348448,"journal":{"name":"2011 1st Middle East Conference on Biomedical Engineering","volume":"75 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127351313","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 : 2011-04-19DOI: 10.1109/MECBME.2011.5752059
Zahra Ghanbari, M. Najafi, M. Shamsollahi
Sleep Spindle is the hallmark of the second stage of sleep in EEG signal. It had been analyzed using different methods, including Fourier transform, parametric and non-parametric models, higher order statistics and spectra, and also time-frequency methods such as wavelet transform, and matching pursuit. In this study, bump modeling has been used to analyze sleep spindle. Bump modeling is a method which represents the time-frequency map of signals with a number of elementary functions. Results of this work demonstrate that bump modeling is capable of analyzing different sleep spindle patterns in sleep EEG signals successfully.
{"title":"Sleep spindles analysis using sparse bump modeling","authors":"Zahra Ghanbari, M. Najafi, M. Shamsollahi","doi":"10.1109/MECBME.2011.5752059","DOIUrl":"https://doi.org/10.1109/MECBME.2011.5752059","url":null,"abstract":"Sleep Spindle is the hallmark of the second stage of sleep in EEG signal. It had been analyzed using different methods, including Fourier transform, parametric and non-parametric models, higher order statistics and spectra, and also time-frequency methods such as wavelet transform, and matching pursuit. In this study, bump modeling has been used to analyze sleep spindle. Bump modeling is a method which represents the time-frequency map of signals with a number of elementary functions. Results of this work demonstrate that bump modeling is capable of analyzing different sleep spindle patterns in sleep EEG signals successfully.","PeriodicalId":348448,"journal":{"name":"2011 1st Middle East Conference on Biomedical Engineering","volume":"68 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131659081","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 : 2011-04-19DOI: 10.1109/MECBME.2011.5752139
D. Janckulík, Leona Motalova, O. Krejcar, J. Cernohorský
The most important parts of our Biotelemetry system is a hardware platform. If we could develop visualization, we must have to measure real data. They are two main choices to solve this part of system. We can use commercial devices, such as embedded PCs, PDAs and wireless ECG unit Blue ECG communicating via Bluetooth. Suggests major problems and disadvantages of their use and offers possible solutions in the form of construction of our own purpose-built equipment. Whether in the form of small auxiliary hardware and design options ECG units optimized for low power consumption and collaboration with mobile devices with limited computing capabilities. We also describe here the real-time response time of packet parsing problem.
{"title":"Packet parsing problem solving on mobile low energy client of Biotelemetry system","authors":"D. Janckulík, Leona Motalova, O. Krejcar, J. Cernohorský","doi":"10.1109/MECBME.2011.5752139","DOIUrl":"https://doi.org/10.1109/MECBME.2011.5752139","url":null,"abstract":"The most important parts of our Biotelemetry system is a hardware platform. If we could develop visualization, we must have to measure real data. They are two main choices to solve this part of system. We can use commercial devices, such as embedded PCs, PDAs and wireless ECG unit Blue ECG communicating via Bluetooth. Suggests major problems and disadvantages of their use and offers possible solutions in the form of construction of our own purpose-built equipment. Whether in the form of small auxiliary hardware and design options ECG units optimized for low power consumption and collaboration with mobile devices with limited computing capabilities. We also describe here the real-time response time of packet parsing problem.","PeriodicalId":348448,"journal":{"name":"2011 1st Middle East Conference on Biomedical Engineering","volume":"49 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126671794","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 : 2011-04-19DOI: 10.1109/MECBME.2011.5752101
I. Rezazadeh, Sanaz Parvaresh, M. Zargar, Joshua Proulx
In this work, we have implemented DCT data compression and a run-length approach to compress an ECG data signal and send the compressed data via a Bluetooth device to a mobile phone on which a .Net platform application has been installed. After reception of the compressed data, the original signal will be retrieved by the inverse DCT algorithm using the built-in application. The results have shown good compression performance indices. Transmission time is reduced due to the necessity of the energy conservation of the mobile battery and online application of telecardiology.
{"title":"ECG data compression for mobile phone tele-cardiology applications using .NET framework","authors":"I. Rezazadeh, Sanaz Parvaresh, M. Zargar, Joshua Proulx","doi":"10.1109/MECBME.2011.5752101","DOIUrl":"https://doi.org/10.1109/MECBME.2011.5752101","url":null,"abstract":"In this work, we have implemented DCT data compression and a run-length approach to compress an ECG data signal and send the compressed data via a Bluetooth device to a mobile phone on which a .Net platform application has been installed. After reception of the compressed data, the original signal will be retrieved by the inverse DCT algorithm using the built-in application. The results have shown good compression performance indices. Transmission time is reduced due to the necessity of the energy conservation of the mobile battery and online application of telecardiology.","PeriodicalId":348448,"journal":{"name":"2011 1st Middle East Conference on Biomedical Engineering","volume":"33 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126764840","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 : 2011-04-19DOI: 10.1109/MECBME.2011.5752151
M. Zarifi
Multi-electrode array devices are widely considered for sensing a large amount of neural data in implantable applications. In such systems power and area are playing most important roll in design and implementation. This paper presents a low power, variable bits and small area analog to digital converter (ADC) for biopotential and neural signals-recording applications. This work has been simulated in standard 90 nm 1P9M CMOS with sample rate of 1Ms/sec and variable precision of 7 to 12 bits. The standby (no input signal) power dissipation of the ADC is 500 nW and full-scale signal conversion is 7.8 μW from a single 1.2-V supply.
{"title":"Energy efficient analog to digital converter in 90nm CMOS","authors":"M. Zarifi","doi":"10.1109/MECBME.2011.5752151","DOIUrl":"https://doi.org/10.1109/MECBME.2011.5752151","url":null,"abstract":"Multi-electrode array devices are widely considered for sensing a large amount of neural data in implantable applications. In such systems power and area are playing most important roll in design and implementation. This paper presents a low power, variable bits and small area analog to digital converter (ADC) for biopotential and neural signals-recording applications. This work has been simulated in standard 90 nm 1P9M CMOS with sample rate of 1Ms/sec and variable precision of 7 to 12 bits. The standby (no input signal) power dissipation of the ADC is 500 nW and full-scale signal conversion is 7.8 μW from a single 1.2-V supply.","PeriodicalId":348448,"journal":{"name":"2011 1st Middle East Conference on Biomedical Engineering","volume":"159 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122273479","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 : 2011-04-19DOI: 10.1109/MECBME.2011.5752096
G. Catapano
In this paper, the evolution of design methods is briefly analyzed and discussed with reference to artificial organs intended to substitute for metabolic bodily functions. In the last seventy years, the methods of artificial organ design have evolved towards a more systematic approach that more and more accounts for biological issues (man-machine interfaces, biocompatibility issues, etc.) to the point that at the forefront of research the design paradigm is shifting from fully synthetic mechanical/electronic prostheses towards the development in vitro of tissue engineered replacement organs/tissues, where the artificial part is fully integrated with the biological counterpart. To keep up with this complex scenario, design methods have shifted: from an experiments-based to the methodical approach; from one to multiple objective functions; from focusing on one single process to multiple concurring processes, often differing in time and space scale; from seeking solutions consisting of one device to many coupled devices; from seeking a generic solution for all patients' needs to seeking personalized solutions for each patient, so that the patient should not adapt to an existing device or implant, but it is the device or implant that has to adapt to the patients' specific needs and circumstances. The impact of this evolution in design on the way courses in biomedical engineering are organized and taught in Europe is also briefly analyzed and discussed.
{"title":"Artificial organs design: Towards the integration of disciplines","authors":"G. Catapano","doi":"10.1109/MECBME.2011.5752096","DOIUrl":"https://doi.org/10.1109/MECBME.2011.5752096","url":null,"abstract":"In this paper, the evolution of design methods is briefly analyzed and discussed with reference to artificial organs intended to substitute for metabolic bodily functions. In the last seventy years, the methods of artificial organ design have evolved towards a more systematic approach that more and more accounts for biological issues (man-machine interfaces, biocompatibility issues, etc.) to the point that at the forefront of research the design paradigm is shifting from fully synthetic mechanical/electronic prostheses towards the development in vitro of tissue engineered replacement organs/tissues, where the artificial part is fully integrated with the biological counterpart. To keep up with this complex scenario, design methods have shifted: from an experiments-based to the methodical approach; from one to multiple objective functions; from focusing on one single process to multiple concurring processes, often differing in time and space scale; from seeking solutions consisting of one device to many coupled devices; from seeking a generic solution for all patients' needs to seeking personalized solutions for each patient, so that the patient should not adapt to an existing device or implant, but it is the device or implant that has to adapt to the patients' specific needs and circumstances. The impact of this evolution in design on the way courses in biomedical engineering are organized and taught in Europe is also briefly analyzed and discussed.","PeriodicalId":348448,"journal":{"name":"2011 1st Middle East Conference on Biomedical Engineering","volume":"57 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131771162","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 : 2011-04-19DOI: 10.1109/MECBME.2011.5752105
F. F. Sherif, Y. Kadah, M. El-Hefnawi
Influenza is one of the most important emerging and reemerging infectious diseases, causing high morbidity and mortality in communities (epidemic) and worldwide (pandemic). Here, Classification of human vs. non-human influenza, and subtyping of human influenza viral strains virus is done based on Profile Hidden Markov Models. The classical ways of determining influenza viral subtypes depend mainly on antigenic assays, which is time-consuming and not fully accurate. The introduced technique is much cheaper and faster, yet usually can still yield high accuracy. Multiple sequence alignments were done for all human HA subtypes (H1, H2, H3 and H5), and NA subtypes (N1 and N2), followed by profile-HMMs models generation, calibration and evaluation using the HMMER suite for each group. Subtyping accuracy of all HA and NA models achieved 100%, while host classification (human vs. non-human) has accuracies varied between (55.5% and 97.5%) according to HA subtype.
{"title":"Classification of human vs. non-human, and subtyping of human influenza viral strains using Profile Hidden Markov Models","authors":"F. F. Sherif, Y. Kadah, M. El-Hefnawi","doi":"10.1109/MECBME.2011.5752105","DOIUrl":"https://doi.org/10.1109/MECBME.2011.5752105","url":null,"abstract":"Influenza is one of the most important emerging and reemerging infectious diseases, causing high morbidity and mortality in communities (epidemic) and worldwide (pandemic). Here, Classification of human vs. non-human influenza, and subtyping of human influenza viral strains virus is done based on Profile Hidden Markov Models. The classical ways of determining influenza viral subtypes depend mainly on antigenic assays, which is time-consuming and not fully accurate. The introduced technique is much cheaper and faster, yet usually can still yield high accuracy. Multiple sequence alignments were done for all human HA subtypes (H1, H2, H3 and H5), and NA subtypes (N1 and N2), followed by profile-HMMs models generation, calibration and evaluation using the HMMER suite for each group. Subtyping accuracy of all HA and NA models achieved 100%, while host classification (human vs. non-human) has accuracies varied between (55.5% and 97.5%) according to HA subtype.","PeriodicalId":348448,"journal":{"name":"2011 1st Middle East Conference on Biomedical Engineering","volume":"40 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121913329","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 : 2011-04-19DOI: 10.1109/MECBME.2011.5752102
H. Ketout, J. Gu, G. Horne
In this paper, Fuzzy Cellular Neural Networks (FCNN) endocardial edge detection is proposed. The echocardiographic image is preprocessed to enhance the contrast and smoothness by utilizing MVN_CNN filtering. FCNN is applied to the smoothed image to extract the heart boundaries. Fuzzy min and max functions are employed. The comparison was made between Fuzzy, CNN and FCNN edge detectors. The FCNN approach showed better results for extracting the LV endocardial edges. Some experimental results are given for different echocardiographic images.
{"title":"MVN_CNN and FCNN for endocardial edge detection","authors":"H. Ketout, J. Gu, G. Horne","doi":"10.1109/MECBME.2011.5752102","DOIUrl":"https://doi.org/10.1109/MECBME.2011.5752102","url":null,"abstract":"In this paper, Fuzzy Cellular Neural Networks (FCNN) endocardial edge detection is proposed. The echocardiographic image is preprocessed to enhance the contrast and smoothness by utilizing MVN_CNN filtering. FCNN is applied to the smoothed image to extract the heart boundaries. Fuzzy min and max functions are employed. The comparison was made between Fuzzy, CNN and FCNN edge detectors. The FCNN approach showed better results for extracting the LV endocardial edges. Some experimental results are given for different echocardiographic images.","PeriodicalId":348448,"journal":{"name":"2011 1st Middle East Conference on Biomedical Engineering","volume":"4 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115474819","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 : 2011-04-19DOI: 10.1109/MECBME.2011.5752140
N. Al-Zubi, W. Al-Nuaimy, Mohammad Al-Hadidi
Hydrocephalus is an excessive accumulation of the cerebrospinal fluid (CSF) in the ventricles of the brain, without treatment it leads in brain damage. The usual treatment is a shunt procedure implanted into the ventricles of the brain to drain the excess fluid to another part of the body. Current shunts are controlled by a pressure dependent valve, while recent developed shunts are utilising mechatronic valves. Compared to the current differential pressure valves, mechatronic valves are regulated by time-based schedule rather than differential pressure across the valve. Therefore, it is important that this time schedule is chosen properly for each patient so that a normal ICP is preserved. Choosing proper time schedule for each patient is still one of the challenges facing the implementation of such valves. This work presents a new method to propose optimal valve time-schedule using an ICP dynamics model and patient's ICP traces, so that shunt valves can be configured accordingly. This method presents a precise and efficient way of how the ICP model can be utilised in evaluating the patient's ICP traces and hence proposing a personalised optimal valve time-schedule as a function of mean measured ICP for each individual patient that can keep the ICP within the normal levels.
{"title":"Personalised mechatronic valve time-schedule optimiser for hydrocephalus shunt","authors":"N. Al-Zubi, W. Al-Nuaimy, Mohammad Al-Hadidi","doi":"10.1109/MECBME.2011.5752140","DOIUrl":"https://doi.org/10.1109/MECBME.2011.5752140","url":null,"abstract":"Hydrocephalus is an excessive accumulation of the cerebrospinal fluid (CSF) in the ventricles of the brain, without treatment it leads in brain damage. The usual treatment is a shunt procedure implanted into the ventricles of the brain to drain the excess fluid to another part of the body. Current shunts are controlled by a pressure dependent valve, while recent developed shunts are utilising mechatronic valves. Compared to the current differential pressure valves, mechatronic valves are regulated by time-based schedule rather than differential pressure across the valve. Therefore, it is important that this time schedule is chosen properly for each patient so that a normal ICP is preserved. Choosing proper time schedule for each patient is still one of the challenges facing the implementation of such valves. This work presents a new method to propose optimal valve time-schedule using an ICP dynamics model and patient's ICP traces, so that shunt valves can be configured accordingly. This method presents a precise and efficient way of how the ICP model can be utilised in evaluating the patient's ICP traces and hence proposing a personalised optimal valve time-schedule as a function of mean measured ICP for each individual patient that can keep the ICP within the normal levels.","PeriodicalId":348448,"journal":{"name":"2011 1st Middle East Conference on Biomedical Engineering","volume":"125 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124335995","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 : 2011-04-19DOI: 10.1109/MECBME.2011.5752076
M. Mozafari, F. Moztarzadeh
In this research, novel nanocomposite scaffolds with compositions based on cross-linked gelatin (Gel) and bioactive glass (BaG) nanoparticles in the ternary SiO2-CaO-P2O5 system were prepared and fully characterized. The scanning electron microscopy (SEM) observations revealed that the prepared scaffolds were porous with three dimensional (3D) and interconnected microstructure, pore size was 200–500 µm and the porosity was 72–86%. It is worth mentioning that the density (ρ) and the porosity percentages of the prepared samples were in the range of natural spongy bone and also, comparison between specific elastic modulus (E/ρ) indicated that their properties were very close to natural bone. In addition, the bone-like apatite formation at the surface of the samples was confirmed by different analyses. In vitro experiments with osteoblast cells indicated an appropriate penetration of the cells into the scaffold's pores, and also the continuous increase in cell aggregation on the scaffolds with increase in the incubation time demonstrated the ability of the scaffolds to support cell growth. Thus, the scaffolds could be considered as highly promising materials for bone tissue engineering applications.
{"title":"Novel porous gelatin/bioactive glass scaffolds with controlled pore structure engineered via compound techniques for bone tissue engineering","authors":"M. Mozafari, F. Moztarzadeh","doi":"10.1109/MECBME.2011.5752076","DOIUrl":"https://doi.org/10.1109/MECBME.2011.5752076","url":null,"abstract":"In this research, novel nanocomposite scaffolds with compositions based on cross-linked gelatin (Gel) and bioactive glass (BaG) nanoparticles in the ternary SiO2-CaO-P2O5 system were prepared and fully characterized. The scanning electron microscopy (SEM) observations revealed that the prepared scaffolds were porous with three dimensional (3D) and interconnected microstructure, pore size was 200–500 µm and the porosity was 72–86%. It is worth mentioning that the density (ρ) and the porosity percentages of the prepared samples were in the range of natural spongy bone and also, comparison between specific elastic modulus (E/ρ) indicated that their properties were very close to natural bone. In addition, the bone-like apatite formation at the surface of the samples was confirmed by different analyses. In vitro experiments with osteoblast cells indicated an appropriate penetration of the cells into the scaffold's pores, and also the continuous increase in cell aggregation on the scaffolds with increase in the incubation time demonstrated the ability of the scaffolds to support cell growth. Thus, the scaffolds could be considered as highly promising materials for bone tissue engineering applications.","PeriodicalId":348448,"journal":{"name":"2011 1st Middle East Conference on Biomedical Engineering","volume":"20 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2011-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129418664","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}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：