HardwareX最新文献_第2页

Open-source, low-cost 3D-printable testbed for in-body optical wireless communications research 用于体内光学无线通信研究的开源、低成本3d打印测试平台。

IF 2.1

HardwareX Pub Date : 2026-03-01 Epub Date: 2026-01-20 DOI: 10.1016/j.ohx.2026.e00744

Syifaul Fuada , Lukasz Surazynski , Mariella Särestöniemi , Teemu Myllylä , Marcos Katz

{"title":"Open-source, low-cost 3D-printable testbed for in-body optical wireless communications research","authors":"Syifaul Fuada , Lukasz Surazynski , Mariella Särestöniemi , Teemu Myllylä , Marcos Katz","doi":"10.1016/j.ohx.2026.e00744","DOIUrl":"10.1016/j.ohx.2026.e00744","url":null,"abstract":"<div><div>This hardware paper introduces an experimental testbed for in-body optical wireless communication (OWC) studies. The conventional version often relies on bulky optical benches and costly supporting equipment, which are often cost-prohibitive for many research institutions. The proposed testbed featured a small footprint, lightweight, a vertically aligned optical path (with fixed optical component placement), and ambient light shielding. It can be printed using commercial 3D printing, reducing costs compared to conventional optical benches. The 3D-printable testbed consists of a box-like chassis that securely positions a near-infrared (NIR) LED TX at the top and a photodetector RX at the bottom, with a tissue sample (<em>e.g.</em>, ex-vivo porcine tissue or a tissue-mimicking phantom) held firmly in between. All design files, including CAD and STL formats, along with detailed assembly instructions, are made openly available. The inherent design structure enables faster alignment, and the shields can effectively protect against exposure to indoor ambient light (<em>e.g.</em>, typical laboratory lighting), thereby improving experimental reliability. The modular nature of the testbed allows for easy customization to accommodate sensors of different wavelengths and different tissue models. The proposed testbed offers practical benefits and an accessible solution for researchers conducting in-body OWC studies, especially when access to high-end optical equipment is limited.</div></div>","PeriodicalId":37503,"journal":{"name":"HardwareX","volume":"25 ","pages":"Article e00744"},"PeriodicalIF":2.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146166972","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}

引用次数: 0

A lab-scale biofiltration system for mitigating diluted methane emissions 用于减少稀释甲烷排放的实验室规模生物过滤系统

IF 2.1

HardwareX Pub Date : 2026-03-01 DOI: 10.1016/j.ohx.2026.e00755

Tate Geiger, Camila González, Johannes Ali, Juliana Vasco-Correa

{"title":"A lab-scale biofiltration system for mitigating diluted methane emissions","authors":"Tate Geiger, Camila González, Johannes Ali, Juliana Vasco-Correa","doi":"10.1016/j.ohx.2026.e00755","DOIUrl":"10.1016/j.ohx.2026.e00755","url":null,"abstract":"<div><div>Methane (CH<sub>4</sub>) is a potent greenhouse gas with a global warming potential 27–30 times greater than CO<sub>2</sub>. Diffuse sources such as livestock facilities, landfills, and coal mines emit methane at low concentrations (<5% v/v), limiting the applicability of conventional mitigation technologies. Biofiltration, which uses methanotrophic bacteria to oxidize CH<sub>4</sub> to CO<sub>2</sub>, offers a sustainable alternative but lacks standardized hardware, resulting in inconsistent designs and limited reproducibility. We present an open-source, modular lab-scale biofiltration system optimized for continuous operation and experimental replication. The system comprises triplicate packed-bed columns constructed from chemically resistant materials, integrated with mass flow controllers for precise gas delivery, humidifiers to maintain moisture, and standardized fittings for leak-free assembly. Its transparent columns enable visual monitoring, and the bottom-up flow design minimizes media compaction. Validation at an inlet concentration of 0.5% CH<sub>4</sub> achieved mean removal efficiencies of 89.0 ± 6.7%. Design files, bill of materials, and assembly instructions are provided under a CERN OHL license to facilitate adoption and customization. This hardware supports methane mitigation research and broader applications in gas-phase bioprocessing, enabling reproducible studies and accelerating development of scalable biofiltration technologies.</div></div>","PeriodicalId":37503,"journal":{"name":"HardwareX","volume":"25 ","pages":"Article e00755"},"PeriodicalIF":2.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147395507","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}

引用次数: 0

Building Otto: An open-source Franz diffusion cell autosampler for automating in vitro skin permeation studies Building Otto：用于体外皮肤渗透研究自动化的开源Franz扩散池自动进样器

IF 2.1

HardwareX Pub Date : 2026-03-01 Epub Date: 2025-12-21 DOI: 10.1016/j.ohx.2025.e00735

Keng Wooi Ng , Liam Archbold , Wing Man Lau

{"title":"Building Otto: An open-source Franz diffusion cell autosampler for automating in vitro skin permeation studies","authors":"Keng Wooi Ng , Liam Archbold , Wing Man Lau","doi":"10.1016/j.ohx.2025.e00735","DOIUrl":"10.1016/j.ohx.2025.e00735","url":null,"abstract":"<div><div>The Franz diffusion cell (FDC), widely used for measuring drug absorption across the skin, is usually operated manually. However, manual operation is not only labour-intensive and time-consuming, but inevitably introduces human errors and inter-operator variability. The requirement to perform regular sampling around the clock also presents a significant logistical challenge for researchers. Commercial FDC automation solutions are costly and require proprietary/bespoke FDC designs. To overcome these challenges, we have developed Otto as a customisable and affordable, aftermarket FDC automation solution, to be retrofitted to existing FDCs of generic specifications. Otto uses a modified cartesian 3D-printer as a gantry and adds liquid-handling capabilities using 3D-printed components and common, inexpensive laboratory consumables. Liquid samples are collected into standard autosampler vials. Capable of handling 100 samples per run, Otto supports a high throughput and integrates well with downstream analytical equipment, without modifying the FDC or the analytical equipment. Its programming is facilitated by OttoMate, a companion software application with a graphical user interface designed to generate human-readable code for Otto. Here, we describe the design, construction, operation and characterisation of Otto. To our knowledge, this is the first open-source, retrofittable FDC autosampler with such throughput.</div></div>","PeriodicalId":37503,"journal":{"name":"HardwareX","volume":"25 ","pages":"Article e00735"},"PeriodicalIF":2.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145939420","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}

引用次数: 0

A cost-effective laboratory device for single slow micro compression testing of soft materials in the small-strain region 一种低成本的实验室装置，用于在小应变区域对软质材料进行单次缓慢微压缩测试

IF 2.1

HardwareX Pub Date : 2026-03-01 Epub Date: 2025-12-28 DOI: 10.1016/j.ohx.2025.e00738

Jaehyeong Kim , Sangjun Pyo , Hyerin Ahn , Ok Chan Jeong

{"title":"A cost-effective laboratory device for single slow micro compression testing of soft materials in the small-strain region","authors":"Jaehyeong Kim , Sangjun Pyo , Hyerin Ahn , Ok Chan Jeong","doi":"10.1016/j.ohx.2025.e00738","DOIUrl":"10.1016/j.ohx.2025.e00738","url":null,"abstract":"<div><div>In various microscale applications, accurate evaluation of the mechanical properties of materials under small-strain and low-force conditions is important. However, conventional universal testing machines (UTM) are expensive and difficult to operate reliably under low-force conditions, making them unsuitable for small-strain testing. To overcome these limitations, we developed a cost-effective device for single slow micro-compression testing (MCT) to measure the mechanical properties of materials in the small-strain region. The MCT consists of a force sensor (FlexiForce A301-1, Tekscan, USA), an Arduino-based signal acquisition module, and a high-precision z-stage. The displacement control accuracy of the z-stage was verified using a laser displacement meter (LK-G10, Keyence, Japan), and the experimental results confirmed displacement and force resolutions of 1 µm and 0.01 N, respectively. Under no-load conditions, the force–displacement error between the MCT and a commercial universal testing machine (MTS, AMETEK LRX-plus, LLOYD INSTRUMENTS, UK) was within ± 2.0 %. In addition, standard and one-third-size PDMS (polydimethylsiloxane) specimens were fabricated according to ASTM <span><span>D575</span><svg><path></path></svg></span>-91 and tested using both systems; the error between the two specimens was within ± 0.05 %. From the linear region in the small-strain range, the Young’s modulus of the miniature specimen was estimated, showing a percentage error of + 2.2 % from reported values, confirming high precision and reliability.</div><div>The developed device, with a total fabrication cost below USD 1,500, provides cost-effectiveness, precision, and repeatability, enabling applications in polymer MEMS and soft robotics.</div></div>","PeriodicalId":37503,"journal":{"name":"HardwareX","volume":"25 ","pages":"Article e00738"},"PeriodicalIF":2.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145939421","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}

引用次数: 0

Mercator: A modular swarm-dedicated robot platform 墨卡托：一个模块化的蜂群专用机器人平台。

IF 2.1

HardwareX Pub Date : 2026-03-01 Epub Date: 2026-02-20 DOI: 10.1016/j.ohx.2026.e00751

Miquel Kegeleirs , David Garzón Ramos , Jeanne Szpirer , Cristobal Lara Vera , Guillermo Legarda Herranz , Ilyes Gharbi , Gianpiero Francesca , Mauro Birattari

{"title":"Mercator: A modular swarm-dedicated robot platform","authors":"Miquel Kegeleirs , David Garzón Ramos , Jeanne Szpirer , Cristobal Lara Vera , Guillermo Legarda Herranz , Ilyes Gharbi , Gianpiero Francesca , Mauro Birattari","doi":"10.1016/j.ohx.2026.e00751","DOIUrl":"10.1016/j.ohx.2026.e00751","url":null,"abstract":"<div><div>Despite decades of research, swarm robotics still lacks realistic applications. A primary obstacle is the absence of modern, reliable, and affordable robot platforms for experimentation. Existing commercial robots are often outdated or too limited in sensing, computation, and communication. We introduce <span>Mercator</span>, a modular mobile robot purpose-built for contemporary swarm studies in both laboratory and indoor environments. <span>Mercator</span> integrates on-board object and people recognition, short- and long-range obstacle detection, ceiling-based tracking, and local, decentralized communication. By combining these capabilities in a low-cost and extensible package, <span>Mercator</span> enables swarm robotics research to align with modern mobile robotics standards, supporting navigation, mapping, and advanced perception in laboratory settings. This design promotes closer alignment between laboratory swarm experiments and contemporary robotic systems used in real-world settings. The platform has already been used in peer-reviewed scientific work and several master’s theses, and we plan to expand its use in future research and teaching.</div></div>","PeriodicalId":37503,"journal":{"name":"HardwareX","volume":"25 ","pages":"Article e00751"},"PeriodicalIF":2.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147327665","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}

引用次数: 0

Corrigendum to “TerraGrow: Integrated platform for real time plant monitoring and automated watering system with IoT and fuzzy Sugeno Algorithm”. [HardwareX 24 (2025) e00724] “TerraGrow：基于物联网和模糊Sugeno算法的实时植物监测和自动浇水系统集成平台”的更正。[硬件x 24 (2025) e00724]

IF 2.1

HardwareX Pub Date : 2026-03-01 Epub Date: 2025-12-10 DOI: 10.1016/j.ohx.2025.e00728

Prima Wijayakusuma , Galang Persada Nurani Hakim , Bin Li

引用次数: 0

Design of an accessible turbulence chamber for laboratory experiments 实验室实验用易接近湍流室的设计

IF 2.1

HardwareX Pub Date : 2026-03-01 Epub Date: 2026-01-21 DOI: 10.1016/j.ohx.2026.e00745

Madeline E. Federle , Benjamin Lyons , Mithun Ravisankar , Roberto Zenit

引用次数: 0

PlatROB: An open-source, modular, and low-cost hardware platform for mobile robotics and AI education PlatROB：一个开源、模块化、低成本的移动机器人和人工智能教育硬件平台

IF 2.1

HardwareX Pub Date : 2026-03-01 Epub Date: 2026-02-07 DOI: 10.1016/j.ohx.2026.e00747

Jose Balbuena, Julio Sinche, Diego Quiroz, Diego Arce, Elizabeth Villota

{"title":"PlatROB: An open-source, modular, and low-cost hardware platform for mobile robotics and AI education","authors":"Jose Balbuena, Julio Sinche, Diego Quiroz, Diego Arce, Elizabeth Villota","doi":"10.1016/j.ohx.2026.e00747","DOIUrl":"10.1016/j.ohx.2026.e00747","url":null,"abstract":"<div><div>This paper introduces PlatROB, an open-source, modular, and low-cost educational robotics platform designed to facilitate hands-on learning in robotics and AI through system integration. PlatROB comprises four 3D-printable, classroom-ready modules: an Ackermann Drive Module (ADM), an Omnidirectional/Differential Drive Module (ODM/DDM), a Control and Processing Module (CPM) with NVIDIA Jetson Nano, and a 4-DoF Articulated Manipulation Module (AMM). Inter-module communication uses standardized I2C over DB9 connectors, integrating Arduino microcontrollers, motor drivers, encoders, IMUs, and ultrasonic sensors. Module costs range from $129 to $341. Performance validation shows the ADM supports 10 kg payload, achieves 25 cm turning radius and has 120 min autonomy (3 kg load), while the CPM sustains 40–100 min operation depending on neural-network workloads. The AMM provides 450 g payload capacity for introductory manipulation tasks. Successfully deployed in workshops and university courses with over 160 learners, demonstrating significant learning gains (p < 0.05) across academic levels and enabling teleoperation and autonomous navigation projects. All mechanical and electronic design files, build manuals, and validation code are open-source to support replication in resource-constrained settings. By providing a scalable, documented hardware-software stack compatible with ROS/ROS2, PlatROB lowers barriers to experiential learning in SLAM, perception, and advanced autonomy.</div></div>","PeriodicalId":37503,"journal":{"name":"HardwareX","volume":"25 ","pages":"Article e00747"},"PeriodicalIF":2.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146188396","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}

引用次数: 0

SIGULS: Signal generator for user-specified laboratory signals SIGULS：用于用户指定实验室信号的信号发生器。

IF 2.1

HardwareX Pub Date : 2026-03-01 Epub Date: 2026-02-17 DOI: 10.1016/j.ohx.2026.e00750

Abelardo Pérez Paz, Oliver Maximilian Zobel, Daniel J. Rixen

引用次数: 0

A low-cost and robust microscope hardware trigger interface board 一种低成本、坚固耐用的显微镜硬件触发接口板

IF 2.1

HardwareX Pub Date : 2026-03-01 Epub Date: 2025-12-29 DOI: 10.1016/j.ohx.2025.e00734

Logan A. Walker , Sylvia N. Michki , Ye Li , Dawen Cai

引用次数: 0