Biomicrofluidics最新文献_第3页

Lung-on-a-chip: From design principles to disease applications. 片上肺：从设计原则到疾病应用。

IF 2.6 4区工程技术

Biomicrofluidics Pub Date : 2025-03-28 eCollection Date: 2025-03-01 DOI: 10.1063/5.0257908

Yan Qiu, Guoqing Hu

引用次数: 0

Microfluidic tools to model, monitor, and modulate the gut-brain axis. 微流控工具建模，监测和调节肠脑轴。

IF 2.6 4区工程技术

Biomicrofluidics Pub Date : 2025-03-07 eCollection Date: 2025-03-01 DOI: 10.1063/5.0253041

Hyehyun Kim, Gregory Girardi, Allison Pickle, Testaverde S Kim, Erkin Seker

{"title":"Microfluidic tools to model, monitor, and modulate the gut-brain axis.","authors":"Hyehyun Kim, Gregory Girardi, Allison Pickle, Testaverde S Kim, Erkin Seker","doi":"10.1063/5.0253041","DOIUrl":"10.1063/5.0253041","url":null,"abstract":"The gut-brain axis (GBA) connects the gastrointestinal tract and the central nervous system (CNS) via the peripheral nervous system and humoral (e.g., circulatory and lymphatic system) routes. The GBA comprises a sophisticated interaction between various mammalian cells, gut microbiota, and systemic factors. This interaction shapes homeostatic and pathophysiological processes and plays an important role in the etiology of many disorders including neuropsychiatric conditions. However, studying the underlying processes of GBA in vivo, where numerous confounding factors exist, is challenging. Furthermore, conventional in vitro models fall short of capturing the GBA anatomy and physiology. Microfluidic platforms with integrated sensors and actuators are uniquely positioned to enhance in vitro models by representing the anatomical layout of cells and allowing to monitor and modulate the biological processes with high spatiotemporal resolution. Here, we first briefly describe microfluidic technologies and their utility in modeling the CNS, vagus nerve, gut epithelial barrier, blood-brain barrier, and their interactions. We then discuss the challenges and opportunities for each model, including the use of induced pluripotent stem cells and incorporation of sensors and actuator modalities to enhance the capabilities of these models. We conclude by envisioning research directions that can help in making the microfluidics-based GBA models better-suited to provide mechanistic insight into pathophysiological processes and screening therapeutics.","PeriodicalId":8855,"journal":{"name":"Biomicrofluidics","volume":"19 2","pages":"021301"},"PeriodicalIF":2.6,"publicationDate":"2025-03-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11890156/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143584463","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Conditions for a microfluidic creep experiment for microparticles using a cross-slot extensional flow device. 跨槽拉伸流装置微流体蠕变实验条件研究。

IF 2.6 4区工程技术

Biomicrofluidics Pub Date : 2025-03-06 eCollection Date: 2025-03-01 DOI: 10.1063/5.0239475

Sara Ghanbarpour Mamaghani, Joanna B Dahl

{"title":"Conditions for a microfluidic creep experiment for microparticles using a cross-slot extensional flow device.","authors":"Sara Ghanbarpour Mamaghani, Joanna B Dahl","doi":"10.1063/5.0239475","DOIUrl":"10.1063/5.0239475","url":null,"abstract":"The micromechanical measurement field has struggled to establish repeatable techniques because the deforming stresses can be difficult to model. A recent numerical study [Lu et al., J. Fluid Mech. 962, A26 (2023)] showed that viscoelastic capsules flowing through a cross-slot can achieve a quasi-steady strain near the extensional flow stagnation point that is equal to the equilibrium static strain, thereby implying that the capsule's elastic behavior can be captured in continuous device operation. However, no experimental microfluidic cross-slot studies have reported quasi-steady strains for suspended cells or particles to our knowledge. Here, we demonstrate experimentally the conditions necessary for the cross-slot microfluidic device to replicate a uniaxial creep test at the microscale and at relatively high throughput. By using large dimension cross-slots relative to the microparticle diameter, our cross-slot implementation creates an extensional flow region that is large enough for agarose hydrogel microparticles to achieve a strain plateau while dwelling near the stagnation point. This strain plateau will be key for accurately and precisely measuring viscoelastic properties of small microscale biological objects. We propose an analytical mechanical model to extract linear viscoelastic mechanical properties from observed particle strain histories. Particle image velocimetry measurements of the unperturbed velocity field is used to estimate where in the device particles experienced extensional flow and where the mechanical model might be applied to extract mechanical property measurements. Finally, we provide recommendations for applying the cross-slot microscale creep experiment to other biomaterials and criteria to identify particles that likely achieved a quasi-steady strain state.","PeriodicalId":8855,"journal":{"name":"Biomicrofluidics","volume":"19 2","pages":"024102"},"PeriodicalIF":2.6,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11888784/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143584461","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

From specialization to broad adoption: Key trends in droplet microfluidic innovations enhancing accessibility to non-experts. 从专业化到广泛采用：液滴微流体创新的主要趋势，增强了非专家的可及性。

IF 2.6 4区工程技术

Biomicrofluidics Pub Date : 2025-03-03 eCollection Date: 2025-03-01 DOI: 10.1063/5.0242599

Jolien Breukers, Karen Ven, Wannes Verbist, Iene Rutten, Jeroen Lammertyn

{"title":"From specialization to broad adoption: Key trends in droplet microfluidic innovations enhancing accessibility to non-experts.","authors":"Jolien Breukers, Karen Ven, Wannes Verbist, Iene Rutten, Jeroen Lammertyn","doi":"10.1063/5.0242599","DOIUrl":"10.1063/5.0242599","url":null,"abstract":"Droplet microfluidics has emerged as a versatile and powerful tool for various analytical applications, including single-cell studies, synthetic biology, directed evolution, and diagnostics. Initially, access to droplet microfluidics was predominantly limited to specialized technology labs. However, the landscape is shifting with the increasing availability of commercialized droplet manipulation technologies, thereby expanding its use to non-specialized labs. Although these commercial solutions offer robust platforms, their adaptability is often constrained compared to in-house developed devices. Consequently, both within the industry and academia, significant efforts are being made to further enhance the robustness and automation of droplet-based platforms, not only to facilitate technology transfer to non-expert laboratories but also to reduce experimental failures. This Perspective article provides an overview of recent advancements aimed at increasing the robustness and accessibility of systems enabling complex droplet manipulations. The discussion encompasses diverse aspects such as droplet generation, reagent addition, splitting, washing, incubation, sorting, and dispensing. Moreover, alternative techniques like double emulsions and hydrogel capsules, minimizing or eliminating the need for microfluidic operations by the end user, are explored. These developments are foreseen to facilitate the integration of intricate droplet manipulations by non-expert users in their workflows, thereby fostering broader and faster adoption across scientific domains.","PeriodicalId":8855,"journal":{"name":"Biomicrofluidics","volume":"19 2","pages":"021302"},"PeriodicalIF":2.6,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11879384/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143566010","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microfluidics for the biological analysis of atmospheric ice-nucleating particles: Perspectives and challenges. 大气冰核粒子生物分析的微流体：展望与挑战。

IF 2.6 4区工程技术

Biomicrofluidics Pub Date : 2025-02-27 eCollection Date: 2025-01-01 DOI: 10.1063/5.0236911

Mark D Tarn, Kirsty J Shaw, Polly B Foster, Jon S West, Ian D Johnston, Daniel K McCluskey, Sally A Peyman, Benjamin J Murray

{"title":"Microfluidics for the biological analysis of atmospheric ice-nucleating particles: Perspectives and challenges.","authors":"Mark D Tarn, Kirsty J Shaw, Polly B Foster, Jon S West, Ian D Johnston, Daniel K McCluskey, Sally A Peyman, Benjamin J Murray","doi":"10.1063/5.0236911","DOIUrl":"10.1063/5.0236911","url":null,"abstract":"Atmospheric ice-nucleating particles (INPs) make up a vanishingly small proportion of atmospheric aerosol but are key to triggering the freezing of supercooled liquid water droplets, altering the lifetime and radiative properties of clouds and having a substantial impact on weather and climate. However, INPs are notoriously difficult to model due to a lack of information on their global sources, sinks, concentrations, and activity, necessitating the development of new instrumentation for quantifying and characterizing INPs in a rapid and automated manner. Microfluidic technology has been increasingly adopted by ice nucleation research groups in recent years as a means of performing droplet freezing analysis of INPs, enabling the measurement of hundreds or thousands of droplets per experiment at temperatures down to the homogeneous freezing of water. The potential for microfluidics extends far beyond this, with an entire toolbox of bioanalytical separation and detection techniques developed over 30 years for medical applications. Such methods could easily be adapted to biological and biogenic INP analysis to revolutionize the field, for example, in the identification and quantification of ice-nucleating bacteria and fungi. Combined with miniaturized sampling techniques, we can envisage the development and deployment of microfluidic sample-to-answer platforms for automated, user-friendly sampling and analysis of biological INPs in the field that would enable a greater understanding of their global and seasonal activity. Here, we review the various components that such a platform would incorporate to highlight the feasibility, and the challenges, of such an endeavor, from sampling and droplet freezing assays to separations and bioanalysis.","PeriodicalId":8855,"journal":{"name":"Biomicrofluidics","volume":"19 1","pages":"011502"},"PeriodicalIF":2.6,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11878220/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143555787","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Modeling the dynamics of circulating tumor cell clusters inside a microfluidic channel. 微流控通道内循环肿瘤细胞团的动力学建模。

IF 2.6 4区工程技术

Biomicrofluidics Pub Date : 2025-02-11 eCollection Date: 2025-01-01 DOI: 10.1063/5.0249165

Emmanuel I Ezeobidi, Agnieszka Truszkowska

{"title":"Modeling the dynamics of circulating tumor cell clusters inside a microfluidic channel.","authors":"Emmanuel I Ezeobidi, Agnieszka Truszkowska","doi":"10.1063/5.0249165","DOIUrl":"10.1063/5.0249165","url":null,"abstract":"Circulating tumor cells are central to metastasis, a particularly malign spread of cancer beyond its original location. While rare, there is growing evidence that the clusters of circulating tumor cells are significantly more harmful than individual cells. Microfluidic platforms constitute the core of circulating tumor cell cluster research, allowing cluster detection, analysis, and treatment. In this work, we propose a new mathematical model of circulating tumor cell clusters and apply it to simulate the dynamics of the aggregates inside a microfluidic channel with the external flow of a fluid. We leverage our previous model of the interactions of circulating tumor cells with varying clustering affinities and introduce explicit bonds between the cells that makeup a cluster. We show that the bonds have a visible impact on the cluster dynamics and that they enable the reproduction of known cluster flow and deformation patterns. Furthermore, we demonstrate that the dynamics of these aggregates are sensitive to bond properties, as well as initialization and flow conditions. We believe that our modeling framework represents a valuable mesoscopic formulation with an impact beyond circulating tumor cell clusters, as cell aggregates are common in both nature and applications.","PeriodicalId":8855,"journal":{"name":"Biomicrofluidics","volume":"19 1","pages":"014103"},"PeriodicalIF":2.6,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11821273/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143413300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A microfluidic sucrose gap platform using trilaminar flow with on-chip switching and novel calibration: Challenges and limitations. 采用片上开关和新型校准的三层流微流控蔗糖间隙平台：挑战和局限性。

IF 2.6 4区工程技术

Biomicrofluidics Pub Date : 2025-02-10 eCollection Date: 2025-01-01 DOI: 10.1063/5.0246160

J Dungan, J Mathews, M Levin, V Koomson

{"title":"A microfluidic sucrose gap platform using trilaminar flow with on-chip switching and novel calibration: Challenges and limitations.","authors":"J Dungan, J Mathews, M Levin, V Koomson","doi":"10.1063/5.0246160","DOIUrl":"10.1063/5.0246160","url":null,"abstract":"Gap junction connectivity is crucial to intercellular communication and plays a key role in many critical processes in developmental biology. However, direct analysis of gap junction connectivity in populations of developing cells has proven difficult due to the limitations of patch clamp and dye diffusion based technologies. We re-examine a microfluidic technique based on the principle of laminar flow, which aims to electrically measure gap junction connectivity. In the device, the trilaminar flow of a saline sheathed sucrose solution establishes distinct regions of electrical conductivity in the extracellular fluid spanning an NRK-49F cell monolayer. In theory, the sucrose gap created by laminar flow provides sufficient electrical isolation to detect electrical current flows through the gap junctional network. A novel calibration approach is introduced to account for stream width variation in the device, and elastomeric valves are integrated to improve the performance of gap junction blocker assays. Ultimately, however, this approach is shown to be ineffective in detecting changes in gap junction impedance due to the gap junction blocker, 2-APB. A number of challenges associated with the technique are identified and analyzed in depth and important improvements are described for future iterations.","PeriodicalId":8855,"journal":{"name":"Biomicrofluidics","volume":"19 1","pages":"014102"},"PeriodicalIF":2.6,"publicationDate":"2025-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11813541/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143405245","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Processing and inspection of high-pressure microfluidics systems: A review. 高压微流体系统的加工与检测：综述。

IF 2.6 4区工程技术

Biomicrofluidics Pub Date : 2025-01-06 eCollection Date: 2025-01-01 DOI: 10.1063/5.0235201

Jiangyi Song, Shaoxin Meng, Jianben Liu, Naichao Chen

{"title":"Processing and inspection of high-pressure microfluidics systems: A review.","authors":"Jiangyi Song, Shaoxin Meng, Jianben Liu, Naichao Chen","doi":"10.1063/5.0235201","DOIUrl":"10.1063/5.0235201","url":null,"abstract":"In the field of microfluidics, high-pressure microfluidics technology, which utilizes high driving pressure for microfluidic analysis, is an evolving technology. This technology combines microfluidics and pressurization, where the flow of fluid is controlled by means of high-pressure-driven devices greater than 10 MPa. This paper first reviews the existing high-pressure microfluidics systems and describes their components and applications. Then, it summarizes several materials used in the microfabrication of high-pressure microfluidics chips, reviewing their properties, processing methods, and bonding methods. In addition, advanced laser processing techniques for the microfabrication of high-pressure microfluidics chips are described. Last, the paper examines the analytical detection methods employed in high-pressure microfluidics systems, encompassing optical and electrochemical detection methods. The review of analytical detection methods shows the different functions and application scenarios of high-pressure microfluidics systems. In summary, this study provides an efficient and advanced microfluidics system, which can be widely used in chemical engineering, food industry, and environmental engineering under high pressure conditions.","PeriodicalId":8855,"journal":{"name":"Biomicrofluidics","volume":"19 1","pages":"011501"},"PeriodicalIF":2.6,"publicationDate":"2025-01-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11706627/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142943429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design of 3D printed chip to improve sensitivity of platelet adhesion through reinjection: Effect of alcohol consumption on platelet adhesion. 3D打印芯片设计通过回注提高血小板粘附灵敏度：酒精消耗对血小板粘附的影响。

IF 2.6 4区工程技术

Biomicrofluidics Pub Date : 2025-01-03 eCollection Date: 2025-01-01 DOI: 10.1063/5.0237452

Haebeen Kim, Hae-Ryoun Park, Jae Min Song, Eunseop Yeom

{"title":"Design of 3D printed chip to improve sensitivity of platelet adhesion through reinjection: Effect of alcohol consumption on platelet adhesion.","authors":"Haebeen Kim, Hae-Ryoun Park, Jae Min Song, Eunseop Yeom","doi":"10.1063/5.0237452","DOIUrl":"10.1063/5.0237452","url":null,"abstract":"Monitoring platelet aggregation is crucial for predicting thrombotic diseases and identifying the risk of bleeding or resistance to antiplatelet drugs. This study developed a microfluidic device to measure platelet activation with high sensitivity. By controlling exposure time through repeated reinjections, the device enables the detection of subtle changes in platelet activity influenced by lifestyle factors, such as alcohol consumption. Using computational fluid dynamics simulations, the design was optimized to achieve moderate shear stresses and fabricated with 3D printing. Experimental results revealed that pillars biased to one side partially accelerate the flow and inhibit platelet adhesion. A distinct difference in platelet adhesion was clearly observed before and after alcohol consumption. Despite the high standard deviations in platelet adhesion area, hematocrit, and viscosity after alcohol consumption, the area covered by adhered platelets increased by 3.12 times compared to that before alcohol consumption. This microfluidic chip offers potential for personalized health monitoring by distinguishing platelet variations caused by lifestyle or dietary habits. However, challenges such as reinjection procedures and large sample volumes require further investigation.","PeriodicalId":8855,"journal":{"name":"Biomicrofluidics","volume":"19 1","pages":"014101"},"PeriodicalIF":2.6,"publicationDate":"2025-01-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11699976/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142930293","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Impact of dcEF on microRNA profiles in glioblastoma and exosomes using a novel microfluidic bioreactor. dcEF对胶质母细胞瘤和外泌体microRNA谱的影响

IF 2.6 4区工程技术

Biomicrofluidics Pub Date : 2024-12-27 eCollection Date: 2024-12-01 DOI: 10.1063/5.0228901

Hsieh-Fu Tsai, Amy Q Shen

{"title":"Impact of dcEF on microRNA profiles in glioblastoma and exosomes using a novel microfluidic bioreactor.","authors":"Hsieh-Fu Tsai, Amy Q Shen","doi":"10.1063/5.0228901","DOIUrl":"10.1063/5.0228901","url":null,"abstract":"Glioblastoma multiforme, the most common type of highly aggressive primary brain tumor, is influenced by complex molecular signaling pathways, where microRNAs (miRNAs) play a critical regulatory role. Originating from glial cells, glioblastoma cells are affected by the physiological direct current electric field (dcEF) in the central nervous system. While dcEF has been shown to affect glioblastoma migration (electrotaxis), the specific impact on glioblastoma intercellular communication and miRNA expression in glioblastoma cells and their exosomes remains unclear. This study aims to fill this gap by investigating the differential expression of microRNAs in glioblastoma cells and exosomes under dcEF stimulation. We have developed a novel, reversibly sealed dcEF stimulation bioreactor that ensures uniform dcEF stimulation across a large cell culture area, specifically targeting glioblastoma cells and primary human astrocytes. Using microarray analysis, we examined differential miRNA profiles in both cellular and exosomal RNAs. Our study identified shared molecular targets and pathways affected by dcEF stimulation. Our findings reveal significant changes in miRNA expression due to dcEF stimulation, with specific miRNAs, such as hsa-miR-4440 being up-regulated and hsa-miR-3201 and hsa-mir-548g being down-regulated. Future research will focus on elucidating the molecular mechanisms of these miRNAs and their potential as diagnostic biomarkers. The developed platform offers high-quality dcEF stimulation and rapid sample recovery, with potential applications in tissue engineering and multi-omics molecular analysis.","PeriodicalId":8855,"journal":{"name":"Biomicrofluidics","volume":"18 6","pages":"064106"},"PeriodicalIF":2.6,"publicationDate":"2024-12-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11686958/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142913802","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0