Biomedical Microdevices最新文献

Recent progress in electrochemical assessment of DNA based on nanostructured sensors. 基于纳米结构传感器的DNA电化学评价研究进展。

IF 3 4区医学

Biomedical Microdevices Pub Date : 2025-07-12 DOI: 10.1007/s10544-025-00763-0

Lue Wang, Waye Zhang

{"title":"Recent progress in electrochemical assessment of DNA based on nanostructured sensors.","authors":"Lue Wang, Waye Zhang","doi":"10.1007/s10544-025-00763-0","DOIUrl":"10.1007/s10544-025-00763-0","url":null,"abstract":"Screening the amount of DNA closely related to early diagnosis of diseases or decoding information in target DNA sequences for biological medicine, infectious identification, or forensic analysis are highly essential in our daily life. This review provides clear understanding of nanostructured sensors (i.e., functionalized electrode-based sensors and nanopores) working for electrochemical assessment of DNA, along with their recent advances and unaddressed issues. Crucial constituents for sensor functionalization, electrochemical techniques, and electrodes, used in functionalized electrode-based sensors are briefly introduced, followed by analysis of using this type of sensors for DNA determination and the comparison of performances such as dynamic ranges and detection limits with other similar works. Subsequently, nanopore sensors including porin-based and solid-state nanopores applied for DNA sequencing are the other interests of discussion in the review. Beyond the achievement of high-resolution DNA sequencing based on porins coupled with enzymatic components, commonly used methods to solid-state nanopore creation, practical use of solid-state nanopores in DNA analysis, and computational modeling for nucleobase pore-threading simulation are depicted in more detail. Finally, conclusions in relation to recent advances and future developments are described. This work offers a powerful guideline for electrochemical assessment of DNA using either functionalized electrode-based sensors or nanopores, enabling scientific groups to have an entire picture upon electrochemical nanodevices used for DNA characterization.","PeriodicalId":490,"journal":{"name":"Biomedical Microdevices","volume":"27 3","pages":"36"},"PeriodicalIF":3.0,"publicationDate":"2025-07-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12255572/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144615733","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

Electrochemical paper-based immunosensor engineered with zinc oxide-nanoflower structures for the detection of field isolated Pasteurella multocida. 基于氧化锌纳米花结构的电化学纸基免疫传感器检测多杀性巴氏杆菌。

IF 3 4区医学

Biomedical Microdevices Pub Date : 2025-07-10 DOI: 10.1007/s10544-025-00764-z

Manjeet Chahar, Mohd Rahil Hasan, Sameer Khan, Ubaid Mushtaq Naikoo, Krishna Kant Sharma, Jagriti Narang, Hari Mohan

{"title":"Electrochemical paper-based immunosensor engineered with zinc oxide-nanoflower structures for the detection of field isolated Pasteurella multocida.","authors":"Manjeet Chahar, Mohd Rahil Hasan, Sameer Khan, Ubaid Mushtaq Naikoo, Krishna Kant Sharma, Jagriti Narang, Hari Mohan","doi":"10.1007/s10544-025-00764-z","DOIUrl":"https://doi.org/10.1007/s10544-025-00764-z","url":null,"abstract":"In this research, we created a paper-based electrochemical immunosensor for detecting Pasteurella multocida antigen (Pm-Ag). Bacteria were obtained from a buffalo nasal swab, and the antigen was prepared and then injected into rabbits to induce a highly specific antibody (Pm-Ab). We created a carbon-based paper electrode chip using a screen-printing method, followed by coating with zinc oxide-nanoflowers (ZnO-NFs). The coating improved the sensor's sensitivity due to the fact that zinc oxide- nanoflowers has remarkable physiochemical properties which enable electron transfer. Characterization of nanomaterial was conducted using UV-Vis spectroscopy, scanning electron microscopy (SEM), and energy dispersive X-rays (EDX). Cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) were used in electrochemical characterization. The developed platform demonstrated effective detection of Pm-Ag across concentrations from 0.9 to 6.4 µg/mL, achieving a limit of detection (LOD) as low as 0.9 µg/mL. These findings support the potential application of our sensor for detecting animal pathogens in a cost-effective, straightforward, and highly sensitive manner using a paper-based electrode chip.","PeriodicalId":490,"journal":{"name":"Biomedical Microdevices","volume":"27 3","pages":"34"},"PeriodicalIF":3.0,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144599045","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

Isolation of therapeutic extracellular vesicles using nanoporous membranes with uniform nanopores. 用均匀纳米孔的纳米孔膜分离治疗性细胞外囊泡。

IF 3 4区医学

Biomedical Microdevices Pub Date : 2025-07-10 DOI: 10.1007/s10544-025-00761-2

Gyeong Won Lee, KyoIck Koo, Soo-Eun Sung, Young-In Kim, Min-Soo Seo, Wook-Tae Park, Seung Yun Yang, Gun-Woo Lee

{"title":"Isolation of therapeutic extracellular vesicles using nanoporous membranes with uniform nanopores.","authors":"Gyeong Won Lee, KyoIck Koo, Soo-Eun Sung, Young-In Kim, Min-Soo Seo, Wook-Tae Park, Seung Yun Yang, Gun-Woo Lee","doi":"10.1007/s10544-025-00761-2","DOIUrl":"https://doi.org/10.1007/s10544-025-00761-2","url":null,"abstract":"Extracellular vesicles (EVs) are nanosized particles secreted by most cells for information transmission, which affects the microenvironment. EVs are known to follow the characteristics and conditions of their mother cells and have attracted considerable attention for disease diagnosis and therapeutic effects. In particular, mesenchymal stem cell (MSC)-derived EVs have shown potential for facilitating regenerative wound healing, modulating immune responses, and inhibiting inflammatory diseases. However, previous isolation methods demonstrated limited EV yield, purity, and filter capacity. Here, we report a two-step tangential flow filtration (TFF) system using track-etched membranes with uniform cylindrical nanopores for effectively isolating EVs with high purity and yield. Using two different uniform nanoporous track-etched membranes (50 and 200 nm), only the particles in the small EV (sEV) size range were separated through a size-exclusion mechanism. Comparative analysis with the existing ultrafiltration membrane-based TFF system revealed that the nanoporous membrane-based TFF (Nano-TFF) system exhibited a separation efficiency (yield) exceeding twofold, achieving sEVs purity surpassing 90%. The efficacy of the highly purified sEVs was validated by incorporating them into wound dressing material and applying them to a wound animal model. Notably, the sEVs-loaded wound dressing group demonstrated enhanced wound recovery compared to control groups. The Nano-TFF system, which provides precise separation and high efficiency, can be applied to separate various bioactive agents, including sEVs, that require high-purity isolation.","PeriodicalId":490,"journal":{"name":"Biomedical Microdevices","volume":"27 3","pages":"35"},"PeriodicalIF":3.0,"publicationDate":"2025-07-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144599046","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

Separation of mononuclear cells from progenitor products by a novel inertial microfluidic method. 新型惯性微流体法分离单核细胞与祖细胞产物。

IF 3 4区医学

Biomedical Microdevices Pub Date : 2025-06-28 DOI: 10.1007/s10544-025-00756-z

Nilgün Okşak, Sultan Sahin Keskin, Esin Cetin Aktas, Zeynep Dogusan, Levent Trabzon, Dürdane Serap Erdem Kuruca

{"title":"Separation of mononuclear cells from progenitor products by a novel inertial microfluidic method.","authors":"Nilgün Okşak, Sultan Sahin Keskin, Esin Cetin Aktas, Zeynep Dogusan, Levent Trabzon, Dürdane Serap Erdem Kuruca","doi":"10.1007/s10544-025-00756-z","DOIUrl":"https://doi.org/10.1007/s10544-025-00756-z","url":null,"abstract":"Mononuclear cells (MNCs), a type of leukocyte, require enrichment owing to their rarity for research and clinical applications. The enrichment of MNCs is generally performed via conventional methods (e.g., density gradient centrifugation). However, these methods have downsides, such as being labor intensive, energy and time consuming, and requiring advanced equipment. Therefore, inertial microfluidics has recently drawn widespread attention as a way to overcome these limitations. This work aims to investigate MNC separation using a novel spiral inertial microfluidic system design. After MNCs were enriched by Ficoll stratification, the cells were separated according to their size and deformability properties by passing through the microfluidic system. In the final step, various cell markers were examined for characterization in these cells collected at outlets. In this paper, we determined that MNCs obtained from three different hematological products could be sorted with a recovery rate of 97.5% and a purity level of 84%, whereas red blood cells (RBCs) had a depletion ratio of 80% using Sunflower-designed microfluidic system. The loss of MNCs in this system was much lower than that in density gradient centrifugation. The separation technique studied here has several advantages, such as continuous processing, a high operation flow rate (e.g., 0.7 ml/min), simplifying the operative procedures for automation, and creating no clogging problems. Additionally, this technique can be easily integrated with downstream applications, such as direct analysis of MNCs via a flow cytometer, and can reduce the number of man-hand manipulation processes.","PeriodicalId":490,"journal":{"name":"Biomedical Microdevices","volume":"27 3","pages":"33"},"PeriodicalIF":3.0,"publicationDate":"2025-06-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144525866","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

Fabrication of a novel porous silicon biomembrane for applications in organ-on-chip technology. 用于器官芯片技术的新型多孔硅生物膜的制备。

IF 3 4区医学

Biomedical Microdevices Pub Date : 2025-06-23 DOI: 10.1007/s10544-025-00760-3

Marcus A C Williams, Cooper Wiens, Sahra Genc, Sally Thompson, Leif Gislason, David Blake, Jeff Jessing

{"title":"Fabrication of a novel porous silicon biomembrane for applications in organ-on-chip technology.","authors":"Marcus A C Williams, Cooper Wiens, Sahra Genc, Sally Thompson, Leif Gislason, David Blake, Jeff Jessing","doi":"10.1007/s10544-025-00760-3","DOIUrl":"10.1007/s10544-025-00760-3","url":null,"abstract":"Conventional in vitro and preclinical animal models often fail to accurately replicate the complexity of human diseases, limiting the success of translational studies and contributing to the low success rate of clinical trials (Ingber 2016). In response, research has increasingly focused on organ-on-chip technology, which better mimics human tissue interfaces and organ functionality. In this study, we describe the fabrication of a novel biomembrane made of porous silicon (PSi) for use in organ-on-chip systems. This biomembrane more accurately simulates the complex tissue interfaces observed in vivo compared to conventional organ-on-chip interfaces. By leveraging established semiconductor techniques, such as anisotropic chemical etching and electrochemical anodization, we developed a reproducible method to create ultra-thin freestanding PSi biomembranes. These membranes were thinned to approximately 10 μm and anodized to contain nanoporous structures (~ 15 nm diameter) that permeate the entire membrane. The incorporation of these membranes into organ-on-chip-like devices demonstrated their functionality in a lung-on-a-chip (LOAC) model system. The results indicate that the PSi biomembranes support cellular viability and adhesion, and are consistent with the expected diffusion of nutrients and signaling molecules between distinct cell types. This novel approach provides a reliable method for generating PSi biomembranes tailored to mimic tissue interfaces. The study underscores the potential of PSi-based membranes to enhance the accuracy and functionality of organ-on-chip devices in translational research.","PeriodicalId":490,"journal":{"name":"Biomedical Microdevices","volume":"27 3","pages":"32"},"PeriodicalIF":3.0,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144473645","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

Separation and aggregation of extracellular vesicles by microfluidics. 微流体对细胞外囊泡的分离和聚集。

IF 3 4区医学

Biomedical Microdevices Pub Date : 2025-06-23 DOI: 10.1007/s10544-025-00752-3

Ziyan Zhang, Yufeng Zhou

引用次数: 0

Distance-dependent spatial analysis of micropattern-generated shockwave for cell-type specific intracellular delivery. 微模式产生的细胞类型特异性细胞内传递冲击波的距离依赖空间分析。

IF 3 4区医学

Biomedical Microdevices Pub Date : 2025-06-23 DOI: 10.1007/s10544-025-00758-x

Aniket Mishra, Shunya Okamoto, Takayuki Shibata, Tuhin Subhra Santra, Sangjin Ryu, Moeto Nagai

{"title":"Distance-dependent spatial analysis of micropattern-generated shockwave for cell-type specific intracellular delivery.","authors":"Aniket Mishra, Shunya Okamoto, Takayuki Shibata, Tuhin Subhra Santra, Sangjin Ryu, Moeto Nagai","doi":"10.1007/s10544-025-00758-x","DOIUrl":"10.1007/s10544-025-00758-x","url":null,"abstract":"Intracellular delivery of therapeutic materials remains challenging, with conventional micropattern-assisted optoporation methods making it difficult to analyze the spatial effects of individual laser pulses. Here, we show that pigmented SU-8 microdisks enable precise analysis of distance-dependent shockwave effects on cell membrane permeabilization, achieving delivery yields up to 60% in optimized conditions. Using 20 μm and 50 μm microdisks irradiated by nanosecond laser pulses, we discovered that larger patterns generate more extensive shockwaves leading to increased cell damage over broader ranges, while smaller patterns maintain high delivery efficiency with minimal cellular disruption. Furthermore, cellular adhesion strength critically influences treatment outcomes: strongly adherent SAOS-2 cells showed remarkable resilience while weakly adherent HEK-293 cells experienced extensive damage at greater distances. Our results demonstrate how micropattern size and cell-specific properties determine the spatial extent and efficiency of shockwave-mediated delivery, providing a framework for optimizing intracellular delivery strategies while preserving cell viability.","PeriodicalId":490,"journal":{"name":"Biomedical Microdevices","volume":"27 3","pages":"30"},"PeriodicalIF":3.0,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12183134/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144367784","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

An Osmosis-driven 3D-printed brain implant for drug delivery. 一个由渗透驱动的3d打印大脑植入物，用于药物输送。

IF 3 4区医学

Biomedical Microdevices Pub Date : 2025-06-16 DOI: 10.1007/s10544-025-00759-w

Ata Ullah, Jade Bookwalter, Himanshu Sant, Azur Azapagic, Jill Shea, Reed Berlet, Neilank Jha, Julian Bailes, Bruce K Gale

{"title":"An Osmosis-driven 3D-printed brain implant for drug delivery.","authors":"Ata Ullah, Jade Bookwalter, Himanshu Sant, Azur Azapagic, Jill Shea, Reed Berlet, Neilank Jha, Julian Bailes, Bruce K Gale","doi":"10.1007/s10544-025-00759-w","DOIUrl":"https://doi.org/10.1007/s10544-025-00759-w","url":null,"abstract":"Glioblastoma is a highly malignant brain tumor with limited survival rates due to challenges in complete surgical excision, high recurrence (> 90%), and the inefficacy of systemic drug delivery. Significant efforts have been made to develop drug-loaded brain implants, catheters, and wafers aimed at enhancing survival rates by suppressing tumor recurrence. However, these devices often fail due to clogging, reflux, and the inability to be fully implanted intracranially. Furthermore, a lack of tissue penetration, diffusion distance, and duration of therapy have limited effectiveness of these implants. To address existing challenges, this study reports an osmosis-driven, 3D-printed brain implant with the potential for precise device customization to meet therapeutic needs, while negating systemic toxicity. It is capable of being loaded with two distinct therapeutic agents and implanted directly into the tumor resection cavity during surgery. The device features dual reservoirs, osmotic membranes, and precision-engineered needles for anchoring the device in the resection cavity and perfusing. Further, the device was characterized in vitro using 0.2% agarose gel as a brain tissue analog, with food dye as a drug analog and sodium chloride serving as an osmogen. A design of experiment approach was implemented to investigate various parameters, including membrane pore size, osmogen concentration, needle length, and their effects on release rates. The results demonstrated that the optimized implant achieves flow rates of 2.5 ± 0.1 µl/Hr and diffusion distance of up to 15.5 ± 0.4 mm, using 25 nm pore osmotic membranes with 25.3% osmogen concentration, aligning with model predictions.","PeriodicalId":490,"journal":{"name":"Biomedical Microdevices","volume":"27 3","pages":"29"},"PeriodicalIF":3.0,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144300886","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

Chlorhexidine loaded nanomaterials for dental plaque control: enhanced antibacterial activity and biocompatibility. 氯己定负载纳米材料用于牙菌斑控制：增强抗菌活性和生物相容性。

IF 3 4区医学

Biomedical Microdevices Pub Date : 2025-06-13 DOI: 10.1007/s10544-025-00755-0

Aram Rostami, Vahid Molabashi, Saber Ganji, Seyedeh Parvaneh Moosavi, Alireza Koushki, Sonia Fathi-Karkan, Kianoosh Ghaderi, Mehdi Shahgolzari

引用次数: 0

Novel dual-lumen microneedle delivers adeno-associated viral vectors in the guinea pig inner ear via the round window membrane. 新型双腔微针通过圆窗膜在豚鼠内耳内传递腺相关病毒载体。

IF 3 4区医学

Biomedical Microdevices Pub Date : 2025-06-10 DOI: 10.1007/s10544-025-00751-4

Daniella R Hammer, François Voruz, Aykut Aksit, Eugénie Breil, Francis Rousset, Pascal Senn, Sten Ilmjärv, Elizabeth S Olson, Anil K Lalwani, Jeffrey W Kysar

{"title":"Novel dual-lumen microneedle delivers adeno-associated viral vectors in the guinea pig inner ear via the round window membrane.","authors":"Daniella R Hammer, François Voruz, Aykut Aksit, Eugénie Breil, Francis Rousset, Pascal Senn, Sten Ilmjärv, Elizabeth S Olson, Anil K Lalwani, Jeffrey W Kysar","doi":"10.1007/s10544-025-00751-4","DOIUrl":"10.1007/s10544-025-00751-4","url":null,"abstract":"The clinical need for minimally invasive inner ear diagnostics and therapeutics has grown rapidly in recent years, particularly with the development of gene therapies for treating hearing and balance disorders. These therapies often require delivery of large injectate volumes that can cause hearing damage. In response to this challenge, dual-lumen microneedles, with two separate fluidic pathways controlled independently by micropumps, were designed for simultaneous aspiration and delivery to the inner ear across the round window membrane (RWM) and were fabricated using 2-photon polymerization (2PP). To assess the proof of concept of the dual-lumen microneedle device, simultaneous injection of 5 µL of adeno-associated virus (AAV) expressing green fluorescent protein (GFP) and aspiration of 5 µL of perilymph was performed in guinea pigs in vivo. Hearing thresholds were measured using auditory brainstem response (ABR) at time points before and 1 week after the procedure. Confocal imaging of the cochlea, the utricle, and the contralateral inner ear was employed to quantify and characterize the spatial distribution of hair cells with AAV transduction. Dual-lumen microneedle devices were found to be functional in the surgical setting. There was hearing loss limited to higher frequencies of 24 kHz and 28 kHz with ABR mean threshold shifts of 13 dB sound pressure level (SPL) (p = 0.03) and 23 dB SPL (p < 0.01), respectively. Furthermore, cochlear AAV transduction with a stereotypical basoapical gradient was observed in all animals (n = 5). Thus, dual-lumen microneedles can facilitate delivery of large volumes of therapeutic material into the inner ear, overcoming the limitations of single-lumen microneedles.","PeriodicalId":490,"journal":{"name":"Biomedical Microdevices","volume":"27 2","pages":"27"},"PeriodicalIF":3.0,"publicationDate":"2025-06-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144256994","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