DevicePub Date : 2023-10-01DOI: 10.1016/j.device.2023.100102
Thomas F. Schranghamer, Sergei P. Stepanoff, Nicholas Trainor, Joan M. Redwing, Douglas E. Wolfe, Saptarshi Das
{"title":"Ultra-scaled phototransistors based on monolayer MoS2","authors":"Thomas F. Schranghamer, Sergei P. Stepanoff, Nicholas Trainor, Joan M. Redwing, Douglas E. Wolfe, Saptarshi Das","doi":"10.1016/j.device.2023.100102","DOIUrl":"https://doi.org/10.1016/j.device.2023.100102","url":null,"abstract":"For decades, the fundamental diffraction limit of light has stymied scaling of optoelectronics beyond the micrometer scale. However, recent studies have shown that devices capable of capturing/directing electromagnetic waves can artificially focus incident light into sub-wavelength active areas, thus enabling applications such as photodetection and communication in defiance of the diffraction limit. Despite these advancements, the ultimate scaling limits of photodetectors have remained largely untested. Here, we present a two-dimensional (2D) monolayer molybdenum disulfide phototransistor that can reach specific detectivities greater than 1013 Jones and display a high dynamic range while possessing an electrical active area of only 0.0065 μm2. Together, the nanoscale active area and ultra-thin-body nature of the sensing material correspond to an active volume of ∼4.23 × 10−6 μm3. These results indicate that scaling of 2D photodetectors beyond the diffraction limit has enormous potential so long as methods of focusing incident light continue to be developed/refined concurrently.","PeriodicalId":101324,"journal":{"name":"Device","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136009167","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}
DevicePub Date : 2023-10-01DOI: 10.1016/j.device.2023.100112
Joohyuk Kang, Kyung Yeun Kim, Seungwan Kim, Hyejun Hong, Byeong-Soo Bae, Seung-Kyun Kang, Wonryung Lee
{"title":"A conformable microneedle sensor with photopatternable skin adhesive and gel electrolyte for continuous glucose monitoring","authors":"Joohyuk Kang, Kyung Yeun Kim, Seungwan Kim, Hyejun Hong, Byeong-Soo Bae, Seung-Kyun Kang, Wonryung Lee","doi":"10.1016/j.device.2023.100112","DOIUrl":"https://doi.org/10.1016/j.device.2023.100112","url":null,"abstract":"Wearable microneedle electrochemical sensors require functional soft materials such as gel electrolytes and skin adhesives to electrically and physically integrate with the skin for continuous measurements. However, current patterning methods for these materials have low process compatibility and are generally laborious and time-consuming, making it challenging to use them for various types of devices. Here, we demonstrate a conformable microneedle sensor applied using a photopatternable gel electrolyte and skin adhesive for glucose monitoring. We used oxygen inhibition photolithography to pattern the gel electrolyte and modified a thermocurable adhesive for positive photolithography, enabling precise and direct deposition onto a microneedle substrate. The resulting microneedle sensor establishes a stable electrical and physical interface with skin and is highly sensitive over a broad range of glucose concentrations. We tested the microneedle sensor for diagnosing hyperglycemia in an anesthetized rat through stable, continuous glucose monitoring.","PeriodicalId":101324,"journal":{"name":"Device","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135963869","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}
DevicePub Date : 2023-10-01DOI: 10.1016/j.device.2023.100101
Carsten Streb
{"title":"Self-cleaning multifunctional air-filtration devices","authors":"Carsten Streb","doi":"10.1016/j.device.2023.100101","DOIUrl":"https://doi.org/10.1016/j.device.2023.100101","url":null,"abstract":"Air filtration is a key approach for removing particulates or pathogenic microorganisms. Traditional air filtrations use filters with limited removal capacity and must be thoroughly maintained. In this Device issue, Schütt, Adelung, and co-workers present a self-cleaning air-filtration system based on graphene-enhanced ceramics. The device removes particles and microbes and monitors airflow and loading state of the filter.","PeriodicalId":101324,"journal":{"name":"Device","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136008958","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}
DevicePub Date : 2023-10-01DOI: 10.1016/j.device.2023.100099
Shuai Guo, Yaoxin Zhang, Swee Ching Tan
{"title":"Device design and optimization of sorption-based atmospheric water harvesters","authors":"Shuai Guo, Yaoxin Zhang, Swee Ching Tan","doi":"10.1016/j.device.2023.100099","DOIUrl":"https://doi.org/10.1016/j.device.2023.100099","url":null,"abstract":"Atmospheric water harvesting (AWH) is a promising approach to providing fresh water to areas without access to large bodies of freshwater and mitigating imbalanced water distribution. Besides material innovations, researchers have explored different design strategies for these AWH devices, which can be divided into monocyclic and multicyclic types. Monocyclic water harvesters can be further categorized into those using upward vapor escape, for which research efforts have focused on reducing top cover heating and increasing sorption capacity, and those using downward vapor escape, for which research efforts have focused on heat recycling and cooling strategies to enhance condensation efficiency. Notably, some of these devices utilize radiative cooling and require zero external energy input. For multicyclic water harvesters, efforts have focused on optimizing the sorbents’ water uptake kinetics and device design geometry to guarantee continuous water harvesting.","PeriodicalId":101324,"journal":{"name":"Device","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135963066","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}
DevicePub Date : 2023-10-01DOI: 10.1016/j.device.2023.100111
Rick P. Wierenga, Stefan M. Golas, Wilson Ho, Connor W. Coley, Kevin M. Esvelt
{"title":"PyLabRobot: An open-source, hardware-agnostic interface for liquid-handling robots and accessories","authors":"Rick P. Wierenga, Stefan M. Golas, Wilson Ho, Connor W. Coley, Kevin M. Esvelt","doi":"10.1016/j.device.2023.100111","DOIUrl":"https://doi.org/10.1016/j.device.2023.100111","url":null,"abstract":"Liquid-handling robots are often limited by proprietary interfaces that are only compatible with a single type of robot and operating system, restricting method sharing and slowing development. Here, we present PyLabRobot, an open-source, cross-platform Python interface capable of programming diverse liquid-handling robots, including Hamilton STARs and Vantages, Tecan EVOs, and Opentron OT-2s. PyLabRobot provides an interface for a universal set of commands and deck layout representations while enabling the control of diverse accessory devices. The interface can work with any liquid-handling robot capable of aspirating and dispensing precise volumes of liquid within a Cartesian coordinate system. In addition to the already integrated robots, we include guidance on integrating new liquid-handling systems and accessories. We validated the framework through unit tests and application demonstrations, including a browser-based simulator, a position calibration tool, and a path-teaching tool for complex movements. PyLabRobot provides a flexible, open, and collaborative programming environment for laboratory automation.","PeriodicalId":101324,"journal":{"name":"Device","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136117825","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}
DevicePub Date : 2023-10-01DOI: 10.1016/j.device.2023.100065
He Shan, Zhanyu Ye, Jie Yu, Ruzhu Wang, Zhenyuan Xu
{"title":"Improving solar water harvesting via airflow restructuring using 3D vapor generator","authors":"He Shan, Zhanyu Ye, Jie Yu, Ruzhu Wang, Zhenyuan Xu","doi":"10.1016/j.device.2023.100065","DOIUrl":"https://doi.org/10.1016/j.device.2023.100065","url":null,"abstract":"","PeriodicalId":101324,"journal":{"name":"Device","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135274295","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}
DevicePub Date : 2023-10-01DOI: 10.1016/j.device.2023.100120
Marshall Brennan
{"title":"The three great mysteries of creation: Life, death, and technology","authors":"Marshall Brennan","doi":"10.1016/j.device.2023.100120","DOIUrl":"https://doi.org/10.1016/j.device.2023.100120","url":null,"abstract":"","PeriodicalId":101324,"journal":{"name":"Device","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136008952","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}
DevicePub Date : 2023-09-01DOI: 10.1016/j.device.2023.100064
Zheng Wang, Qilin Li, Peng Cao, Jiao Zhang, Di Wu, Rengui Xu, Yan Zhang, Yunruo Xu, Tao Liang, Wei Chen, Lin Wang, Xiaoyuan Chen
{"title":"A biomimetic helical robot actuated by rotating magnetic field for targeted navigation and in situ prodrug activation to treat intestinal diseases","authors":"Zheng Wang, Qilin Li, Peng Cao, Jiao Zhang, Di Wu, Rengui Xu, Yan Zhang, Yunruo Xu, Tao Liang, Wei Chen, Lin Wang, Xiaoyuan Chen","doi":"10.1016/j.device.2023.100064","DOIUrl":"https://doi.org/10.1016/j.device.2023.100064","url":null,"abstract":"","PeriodicalId":101324,"journal":{"name":"Device","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135298674","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}
DevicePub Date : 2023-09-01DOI: 10.1016/j.device.2023.100067
Shumao Xu, Salahuddin Ahmed, Marzia Momin, Arafat Hossain, Tao Zhou
{"title":"Unleashing the potential of 3D printing soft materials","authors":"Shumao Xu, Salahuddin Ahmed, Marzia Momin, Arafat Hossain, Tao Zhou","doi":"10.1016/j.device.2023.100067","DOIUrl":"https://doi.org/10.1016/j.device.2023.100067","url":null,"abstract":"Soft materials have attracted substantial attention in interdisciplinary research because of their remarkable resemblance to human tissues. The use of three-dimensional (3D) printing has revolutionized the field by offering widespread personalization and extensive capabilities to process soft materials. However, despite its immense potential, 3D-printable soft material encounters challenges, such as a restricted range of soft materials suitable for printing, suboptimal resolution, slow printing speed, and inadequate functional attributes. The aim of this perspective is to provide a comprehensive summary of strategies to overcome these challenges. Specifically, we focus on two crucial aspects: the development of printable materials and the enhancement of printability for previously unprintable materials, as well as functional structures engineering. Furthermore, the transformative potential of 3D printing soft materials for diverse device applications is highlighted, shedding light on its significant prospects.","PeriodicalId":101324,"journal":{"name":"Device","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2023-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135428772","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}