Biomedical Microdevices最新文献

筛选
英文 中文
A standard 96-well based high throughput microfluidic perfusion biofilm reactor for in situ optical analysis 用于原位光学分析的标准96孔基高通量微流体灌注生物膜反应器。
IF 2.8 4区 医学
Biomedical Microdevices Pub Date : 2023-07-26 DOI: 10.1007/s10544-023-00668-w
David McLeod, Lai Wei, Zhenyu Li
{"title":"A standard 96-well based high throughput microfluidic perfusion biofilm reactor for in situ optical analysis","authors":"David McLeod,&nbsp;Lai Wei,&nbsp;Zhenyu Li","doi":"10.1007/s10544-023-00668-w","DOIUrl":"10.1007/s10544-023-00668-w","url":null,"abstract":"<div><p>Biofilm infections represent a major public health threat due to their high tolerance to antimicrobials and the lack of specific anti-biofilm drugs. To develop such drugs, it is crucial to have high-throughput biofilm growth systems that can emulate <i>in vivo</i> conditions without the cost and complexity of animal models. However, no current biofilm reactor can provide <i>in vivo</i>-like conditions in a high throughput standard microtiter format. This paper demonstrates a novel high-throughput (HT) microfluidic perfusion biofilm reactor (HT-μPBR) compatible with a standard 96-well microtiter plate for <i>in situ</i> optical analysis. A snap-on liquid-tight cover for standard microtiter plates was designed and fabricated with fluidic channels to provide closed-loop recirculating perfusion. Our system takes steps toward providing <i>in vivo</i>-like conditions with controlled shear stress and nutrient delivery. We describe the system fabrication and usage in optical analysis of biomass and viability of <i>Escherichia coli</i> (<i>E. coli</i>) biofilms. The HT-μPBR was set to perfuse at 1 mL/min corresponding to an average shear rate of approximately <span>(5.7{mathrm{s}}^{-1})</span> on the bottom surface of a single well. Biofilms were detected on well plate bottoms and measured using a fluorescence microscope and plate reader to determine biomass and viability. Samples cultured in the HT-μPBR showed increased biomass while maintaining viability after 24 h. The HT-μPBR can further be combined with HT antibiotic susceptibility testing and additional optical techniques such as time-lapse imaging to improve understanding of the drug reaction mechanism as well as the optimization of drug combinations and delivery profiles.</p></div>","PeriodicalId":490,"journal":{"name":"Biomedical Microdevices","volume":"25 3","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-07-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10297222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Ultrasensitive FET biosensor chip based on self-assembled organic nanoporous membrane for femtomolar detection of Amyloid-β 基于自组装有机纳米孔膜的超灵敏FET生物传感器芯片用于飞摩尔检测淀粉样蛋白-β
IF 2.8 4区 医学
Biomedical Microdevices Pub Date : 2023-07-20 DOI: 10.1007/s10544-023-00667-x
Xiaona Cao, Xiaoping Hu, Ziyi Qiu, Ting Xu, Zhenhua Yu, Zhe Li, Huawei Jin, Bingzhe Xu
{"title":"Ultrasensitive FET biosensor chip based on self-assembled organic nanoporous membrane for femtomolar detection of Amyloid-β","authors":"Xiaona Cao,&nbsp;Xiaoping Hu,&nbsp;Ziyi Qiu,&nbsp;Ting Xu,&nbsp;Zhenhua Yu,&nbsp;Zhe Li,&nbsp;Huawei Jin,&nbsp;Bingzhe Xu","doi":"10.1007/s10544-023-00667-x","DOIUrl":"10.1007/s10544-023-00667-x","url":null,"abstract":"<div><p>Early diagnosis of Alzheimer’s disease (AD) is critical for preventing disease progression, however, the diagnosis of AD remains challenging for most patients due to limitations of current sensing technologies. A common pathological feature found in AD-affected brains is the accumulation of Amyloid-β (Aβ) polypeptides, which lead to neurofibrillary tangles and neuroinflammatory plaques. Here, we developed a portable ultrasensitive FET biosensor chip based on a self-assembled nanoporous membrane for ultrasensitive detection of Aβ protein in complex environments. The microscale semiconductor channel was covered with a self-assembled organic nanoporous membrane modified by antibody molecules to pick up and amplify the Aβ protein signal. The nanoporous structure helps protect the sensitive channel from non-target proteins and improves its stability since no chemical functionalization process involved, largely reduces background noise of the sensing platform. When a bio-gated target is captured, the doping state of the polymer bulk could be tuned and amplified the strength of the weak signal, achieving ultrasensitive detecting performance (enabling the device to detect target protein less than 1 fg/ml in 1 µl sample). Moreover, the device simplifies the circuit connection by integrating all the connections on a 2 cm × 2 cm chip, avoiding expensive and complex manufacturing processes, and makes it usable for portable prognosis. We believe that this ultrasensitive, portable, low-cost Aβ sensor chip shows the great potential in the early diagnosis of AD and large-scale population screening applications.</p></div>","PeriodicalId":490,"journal":{"name":"Biomedical Microdevices","volume":"25 3","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-07-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10544-023-00667-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4792463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Multi-parameter surface plasmon resonance instrument for multiple nucleic acid quantitative detection 用于多种核酸定量检测的多参数表面等离子体共振仪
IF 2.8 4区 医学
Biomedical Microdevices Pub Date : 2023-07-07 DOI: 10.1007/s10544-023-00664-0
Huixiang Wang, Honggang Wang, Yafeng Huang, Hao Zhang, Yongdong Fu, Zhenwei Yang, Yuanyuan Chen, Xianbo Qiu, Duli Yu, Lulu Zhang
{"title":"Multi-parameter surface plasmon resonance instrument for multiple nucleic acid quantitative detection","authors":"Huixiang Wang,&nbsp;Honggang Wang,&nbsp;Yafeng Huang,&nbsp;Hao Zhang,&nbsp;Yongdong Fu,&nbsp;Zhenwei Yang,&nbsp;Yuanyuan Chen,&nbsp;Xianbo Qiu,&nbsp;Duli Yu,&nbsp;Lulu Zhang","doi":"10.1007/s10544-023-00664-0","DOIUrl":"10.1007/s10544-023-00664-0","url":null,"abstract":"<div><p>Multiplex nucleic acid assays can simultaneously detect the characteristics of different target nucleic acids in complex mixtures and are used in disease diagnosis, environmental monitoring, and food safety. However, traditional nucleic acid amplification assays have limitations such as complicated operation, long detection time, unstable fluorescent labeling, and mutual interference of multiplex nucleic acids. We developed a real-time, rapid, and label-free surface plasmon resonance (SPR) instrument for multiplex nucleic acid detection. The multiparametric optical system based on total internal reflection solves the multiplex detection problem by cooperating with linear light source, prism, photodetector, and mechanical transmission system. An adaptive threshold consistency correction algorithm is proposed to solve the problem of inconsistent responsiveness of different detection channels and the inability of quantitative comparison. The instrument achieves label-free and amplification-free rapid detection of these biomarkers for miRNA-21 and miRNA-141, which are widely expressed in breast cancer and prostate cancer. The multiplex nucleic acid detection takes 30 min and the biosensor has good repeatability and specificity. The instrument has a limit of detection (LODs) of 50 nM for target oligonucleotides, and the smallest absolute amount of sample that can be detected is about 4 pmol. It provides a simple and efficient point-of-care testing (POCT) detection platform for small molecules such as DNA and miRNA.</p><h3>Graphical abstract</h3>\u0000 <figure><div><div><div><picture><source><img></source></picture></div></div></div></figure>\u0000 </div>","PeriodicalId":490,"journal":{"name":"Biomedical Microdevices","volume":"25 3","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-07-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4302165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Rapid electrical impedance detection of sickle cell vaso-occlusion in microfluidic device 微流控装置镰状细胞血管闭塞的快速电阻抗检测
IF 2.8 4区 医学
Biomedical Microdevices Pub Date : 2023-06-22 DOI: 10.1007/s10544-023-00663-1
Yuhao Qiang, Darryl Dieujuste, Jia Liu, Ofelia Alvarez, E Du
{"title":"Rapid electrical impedance detection of sickle cell vaso-occlusion in microfluidic device","authors":"Yuhao Qiang,&nbsp;Darryl Dieujuste,&nbsp;Jia Liu,&nbsp;Ofelia Alvarez,&nbsp;E Du","doi":"10.1007/s10544-023-00663-1","DOIUrl":"10.1007/s10544-023-00663-1","url":null,"abstract":"<div><p>Sickle cell disease is characterized by painful vaso-occlusive crises, in which poorly deformable sickle cells play an important role in the complex vascular obstruction process. Existing techniques are mainly based on optical microscopy and video processing of sickle blood flow under normoxic condition, for measuring vaso-occlusion by a small fraction of dense sickle cells of intrinsic rigidity but not the vaso-occlusion by the rigid, sickled cells due to deoxygenation. Thus, these techniques are not suitable for rapid, point-of-care testing. Here, we integrate electrical impedance sensing and Polydimethylsiloxane-microvascular mimics with controlled oxygen level into a single microfluidic chip, for quantification of vaso-occlusion by rigid, sickled cells within 1 min. Electrical impedance measurements provided a label-free, real-time detection of different sickle cell flow behaviors, including steady flow, vaso-occlusion, and flow recovery in response to the deoxygenation-reoxygenation process that are validated by microscopic videos. Sensitivity of the real part and imaginary part of the impedance signals to the blood flow conditions in both natural sickle cell blood and simulants at four electrical frequencies (10, 50, 100, and 500 kHz) are compared. The results show that the sensitivity of the sensor in detection of vaso-occlusion decreases as electrical frequency increases, while the higher frequencies are preferable in measurement of steady flow behavior. Additional testing using sickle cell simulants, chemically crosslinked normal red blood cells, shows same high sensitivity in detection of vaso-occlusion as sickle cell vaso-occlusion under deoxygenation. This work enables point-of-care testing potentials in rapid, accurate detection of steady flow and sickle cell vaso-occlusion from microliter volume blood specimens. Quantification of sickle cell rheology in response to hypoxia, may provide useful indications for not only the kinetics of cell sickling, but also the altered hemodynamics as obseved at the microcirculatory level.</p></div>","PeriodicalId":490,"journal":{"name":"Biomedical Microdevices","volume":"25 3","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10544-023-00663-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4863244","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Development of a novel microfluidic perfusion 3D cell culture system for improved neuronal cell differentiation 一种新型微流体灌注三维细胞培养系统的开发,以改善神经细胞的分化
IF 2.8 4区 医学
Biomedical Microdevices Pub Date : 2023-06-13 DOI: 10.1007/s10544-023-00660-4
Dong Hyeok Park, Mei Tong He, Eun Ju Cho, Karl Morten, Jeung Sang Go
{"title":"Development of a novel microfluidic perfusion 3D cell culture system for improved neuronal cell differentiation","authors":"Dong Hyeok Park,&nbsp;Mei Tong He,&nbsp;Eun Ju Cho,&nbsp;Karl Morten,&nbsp;Jeung Sang Go","doi":"10.1007/s10544-023-00660-4","DOIUrl":"10.1007/s10544-023-00660-4","url":null,"abstract":"<div><p>Three-dimensional (3D) cell cultures have recently gained popularity in the biomedical sciences because of their similarity to the <i>in vivo</i> environment. SH-SY5Y cells, which are neuronal cells and are commonly used to investigate neurodegenerative diseases, have particularly been reported to be differentiated as neuron-like cells expressing neuron-specific markers of mature neurons in static 3D culture environments when compared to static 2D environments, and those in perfusion environments have not yet been investigated. Microfluidic technology has provided perfusion environment which has more similarity to <i>in vivo</i> through mimicking vascular transportation of nutrients, but air bubbles entering into microchannels drastically increase instability of the flow. Furthermore, static incubation commonly used is incompatible with perfusion setup due to its air conditions, which is a critical huddle to the biologists. In the present study, we developed a novel microfluidic perfusion 3D cell culture system that overcomes the disturbance from air bubbles and intuitionally sets the incubation with the perfusion 3D culture. The system is capable of generating concentration gradients between 5 and 95% and air bubble traps were included to increase stability during incubation by collecting air bubbles. To evaluate the perfusion 3D culture, SH-SY5Y differentiation was examined in static 2D, static 3D, and perfusion 3D cultures. Our system supported significantly increased clustering of SH-SY5Y compared to static 2D and 3D methods, as well as increasing neurite growth rate. This novel system therefore supports differentiation of SH-SY5Y and can be used to more accurately model the <i>in vivo</i> environment during cell culture experiments.</p></div>","PeriodicalId":490,"journal":{"name":"Biomedical Microdevices","volume":"25 3","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10544-023-00660-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4545959","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
High-throughput microbead assay system with a portable, cost-effective Wi-Fi imaging module, and disposable multi-layered microfluidic cartridges for virus and microparticle detection, and tracking 高通量微珠检测系统具有便携式,具有成本效益的Wi-Fi成像模块,以及用于病毒和微粒检测和跟踪的一次性多层微流控墨盒
IF 2.8 4区 医学
Biomedical Microdevices Pub Date : 2023-06-07 DOI: 10.1007/s10544-023-00661-3
Jorge Manrique Castro, Frank Sommerhage, Rishika Khanna, Andre Childs, David DeRoo, Swaminathan Rajaraman
{"title":"High-throughput microbead assay system with a portable, cost-effective Wi-Fi imaging module, and disposable multi-layered microfluidic cartridges for virus and microparticle detection, and tracking","authors":"Jorge Manrique Castro,&nbsp;Frank Sommerhage,&nbsp;Rishika Khanna,&nbsp;Andre Childs,&nbsp;David DeRoo,&nbsp;Swaminathan Rajaraman","doi":"10.1007/s10544-023-00661-3","DOIUrl":"10.1007/s10544-023-00661-3","url":null,"abstract":"<div><p>In recent years biomedical scientific community has been working towards the development of high-throughput devices that allow a reliable, rapid and parallel detection of several strains of virus or microparticles simultaneously. One of the complexities of this problem lies on the rapid prototyping of new devices and wireless rapid detection of small particles and virus alike. By reducing the complexity of microfluidics microfabrication and using economic materials along with makerspace tools (Kundu et al. 2018) it is possible to provide an affordable solution to both the problems of high-throughput devices and detection technologies. We present the development of a wireless, standalone device and disposable microfluidics chips that rapidly generate parallel readouts for selected, possible virus variants from a nasal or saliva sample, based on motorized and non-motorized microbeads detection, and imaging processing of the motion tracks of these beads in micrometers. Microbeads and SARS-CoV-2 COVID-19 Delta variant were tested as proof-of-concept for testing the microfluidic cartridges and wireless imaging module. The Microbead Assay (MA) system kit consists of a Wi-Fi readout module, a microfluidic chip, and a sample collection/processing sub-system. Here, we focus on the fabrication and characterization of the microfluidic chip to multiplex various micrometer-sized beads for economic, disposable, and simultaneous detection of up to six different viruses, microparticles or variants in a single test, and data collection using a commercially available, Wi-Fi-capable, and camera integrated device (Fig. 1).\u0000</p></div>","PeriodicalId":490,"journal":{"name":"Biomedical Microdevices","volume":"25 3","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-06-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10544-023-00661-3.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4305413","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Microneedles: materials, fabrication, and biomedical applications 微针:材料、制造和生物医学应用
IF 2.8 4区 医学
Biomedical Microdevices Pub Date : 2023-06-06 DOI: 10.1007/s10544-023-00658-y
Xiaojin Luo, Li Yang, Yue Cui
{"title":"Microneedles: materials, fabrication, and biomedical applications","authors":"Xiaojin Luo,&nbsp;Li Yang,&nbsp;Yue Cui","doi":"10.1007/s10544-023-00658-y","DOIUrl":"10.1007/s10544-023-00658-y","url":null,"abstract":"<div><p>The microneedles have attracted great interests for a wide range of transdermal biomedical applications, such as biosensing and drug delivery, due to the advantages of being painless, semi-invasive, and sustainable. The ongoing challenges are the materials and fabrication methods of the microneedles in order to obtain a specific shape, configuration and function of the microneedles to achieve a target biomedical application. Here, this review would introduce the types of materials of the microneedles firstly. The hardness, Young's modulus, geometric structure, processability, biocompatibility and degradability of the microneedles are explored as well. Then, the fabrication methods for the solid and hollow microneedles in recent years are reviewed in detail, and the advantages and disadvantages of each process are analyzed and compared. Finally, the biomedical applications of the microneedles are reviewed, including biosensing, drug delivery, body fluid extraction, and nerve stimulation. It is expected that this work provides the fundamental knowledge for developing new microneedle devices, as well as the applications in a variety of biomedical fields.</p></div>","PeriodicalId":490,"journal":{"name":"Biomedical Microdevices","volume":"25 3","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-06-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10544-023-00658-y.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4257311","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 4
Portable and integrated microfluidic flow control system using off-the-shelf components towards organs-on-chip applications 便携式和集成的微流控系统使用现成的组件对器官芯片上的应用
IF 2.8 4区 医学
Biomedical Microdevices Pub Date : 2023-06-02 DOI: 10.1007/s10544-023-00657-z
Haoyu Zhu, Gürhan Özkayar, Joost Lötters, Marcel Tichem, Murali Krishna Ghatkesar
{"title":"Portable and integrated microfluidic flow control system using off-the-shelf components towards organs-on-chip applications","authors":"Haoyu Zhu,&nbsp;Gürhan Özkayar,&nbsp;Joost Lötters,&nbsp;Marcel Tichem,&nbsp;Murali Krishna Ghatkesar","doi":"10.1007/s10544-023-00657-z","DOIUrl":"10.1007/s10544-023-00657-z","url":null,"abstract":"<div><p>Organ-on-a-chip (OoC) devices require the precise control of various media. This is mostly done using several fluid control components, which are much larger than the typical OoC device and connected through fluidic tubing, i.e., the fluidic system is not integrated, which inhibits the system’s portability. Here, we explore the limits of fluidic system integration using off-the-shelf fluidic control components. A flow control configuration is proposed that uses a vacuum to generate a fluctuation-free flow and minimizes the number of components used in the system. 3D printing is used to fabricate a custom-designed platform box for mounting the chosen smallest footprint components. It provides flexibility in arranging the various components to create experiment-specific systems. A demonstrator system is realized for lung-on-a-chip experiments. The 3D-printed platform box is 290 mm long, 240 mm wide and 37 mm tall. After integrating all the components, it weighs 4.8 kg. The system comprises of a switch valve, flow and pressure controllers, and a vacuum pump to control the diverse media flows. The system generates liquid flow rates ranging from 1.5 <span>(upmu)</span>Lmin<span>(^{-1})</span> to 68 <span>(upmu)</span>Lmin<span>(^{-1})</span> in the cell chambers, and a cyclic vacuum of 280 mbar below atmospheric pressure with 0.5 Hz frequency in the side channels to induce mechanical strain on the cells-substrate. The components are modular for easy exchange. The battery operated platform box can be mounted on either upright or inverted microscopes and fits in a standard incubator. Overall, it is shown that a compact integrated and portable fluidic system for OoC experiments can be constructed using off-the-shelf components. For further down-scaling, the fluidic control components, like the pump, switch valves, and flow controllers, require significant miniaturization while having a wide flow rate range with high resolution.</p></div>","PeriodicalId":490,"journal":{"name":"Biomedical Microdevices","volume":"25 2","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-06-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10544-023-00657-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4091010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Point-of-care testing: a disposable label-free electrochemical CA125 and HE4 immunosensors for early detection of ovarian cancer 即时检测:用于卵巢癌早期检测的一次性无标签电化学CA125和HE4免疫传感器
IF 2.8 4区 医学
Biomedical Microdevices Pub Date : 2023-05-04 DOI: 10.1007/s10544-023-00659-x
Melike Bilgi Kamaç, Muhammed Altun, Merve Yılmaz, Ayla Yılmaz Aktan, Soner Aktan, Mustafa Kemal Sezgintürk
{"title":"Point-of-care testing: a disposable label-free electrochemical CA125 and HE4 immunosensors for early detection of ovarian cancer","authors":"Melike Bilgi Kamaç,&nbsp;Muhammed Altun,&nbsp;Merve Yılmaz,&nbsp;Ayla Yılmaz Aktan,&nbsp;Soner Aktan,&nbsp;Mustafa Kemal Sezgintürk","doi":"10.1007/s10544-023-00659-x","DOIUrl":"10.1007/s10544-023-00659-x","url":null,"abstract":"<div><p>Cancer antigen 125 (CA125) and human epididymal secretory protein 4 (HE4) are critical biomarkers for ovarian cancer diagnosis and progression monitoring; therefore, sensitive determination of their levels in body fluids is crucial. In recent study, label-free CA125 and HE4 immunosensors were prepared using disposable screen-printed carbon electrodes modified with reduced graphene oxide, polythionine, and gold nanoparticles for the sensitive, fast, and practical determination of CA125 and HE4. Differential pulse voltammetry, square wave voltammetry, and electrochemical impedance spectroscopy methods were used for the electrochemical determination of antigens in four different linear ranges (1-100 pg mL<sup>− 1</sup>, 0.01-10 ng mL<sup>− 1</sup>, 10–50 ng mL<sup>− 1,</sup> and 50–500 ng mL<sup>− 1</sup>). High sensitivity, low limit of detection, and limit of quantification were obtained for each linear range with a correlation coefficient above 0.99. The application stability of CA125 and HE4 immunosensors was determined as 60 days, and the storage stability was determined as 16 weeks. Immunosensors showed high selectivity in nine different antigen mixtures. The reusability of the immunosensors has been tested up to 9 cycles. The Risk of Ovarian Malignancy Algorithm score% values were calculated using the concentration of CA125 and HE4 in the blood serum and evaluated in terms of ovarian cancer risk. For the point-of-care testing, CA125 and HE4 levels at pg mL<sup>− 1</sup> concentration were measured in blood serum samples using the developed immunosensors and a hand-held electrochemical reader in approximately 20–30 s, and high recoveries were obtained. These disposable label-free immunosensors are user-friendly and can be used in point-of-care tests for rapid and practical detection of CA125 and HE4 with high selectivity, sensitivity, and repeatability.</p></div>","PeriodicalId":490,"journal":{"name":"Biomedical Microdevices","volume":"25 2","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-05-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10544-023-00659-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4178360","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 2
Paper-based multiplex biosensors for inexpensive healthcare diagnostics: a comprehensive review 用于廉价医疗保健诊断的纸质多重生物传感器:全面综述
IF 2.8 4区 医学
Biomedical Microdevices Pub Date : 2023-05-03 DOI: 10.1007/s10544-023-00656-0
Shrishti Kumari, Monsur Islam, Ankur Gupta
{"title":"Paper-based multiplex biosensors for inexpensive healthcare diagnostics: a comprehensive review","authors":"Shrishti Kumari,&nbsp;Monsur Islam,&nbsp;Ankur Gupta","doi":"10.1007/s10544-023-00656-0","DOIUrl":"10.1007/s10544-023-00656-0","url":null,"abstract":"<div><p>Multiplex detection is a smart and an emerging approach in point-of-care testing as it reduces analysis time and testing cost by detecting multiple analytes or biomarkers simultaneously which are crucial for disease detection at an early stage. Application of inexpensive substrate such as paper has immense potential and matter of research interest in the area of point of care testing for multiplexed analysis as it possesses several unique advantages. This study presents the use of paper, strategies adopted to refine the design created on paper and lateral flow strips to enhance the signal, increase the sensitivity and specificity of multiplexed biosensors. An overview of different multiplexed detection studies performed using biological samples has also been reviewed along with the challenges and advantages offered by multiplexed analysis.</p></div>","PeriodicalId":490,"journal":{"name":"Biomedical Microdevices","volume":"25 2","pages":""},"PeriodicalIF":2.8,"publicationDate":"2023-05-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s10544-023-00656-0.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"4137791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信