Nature Electronics最新文献_第6页

A microspectrometer with dual-signal spectral reconstruction 双信号光谱重建微光谱仪

IF 33.7 1区工程技术

Nature Electronics Pub Date : 2024-09-17 DOI: 10.1038/s41928-024-01242-9

Xinchuan Du, Yang Wang, Yi Cui, Gaofeng Rao, Jianwen Huang, Xinrui Chen, Ting Zhou, Chunyang Wu, Zongyin Yang, Hanxiao Cui, Yicheng Zhao, Jie Xiong

{"title":"A microspectrometer with dual-signal spectral reconstruction","authors":"Xinchuan Du, Yang Wang, Yi Cui, Gaofeng Rao, Jianwen Huang, Xinrui Chen, Ting Zhou, Chunyang Wu, Zongyin Yang, Hanxiao Cui, Yicheng Zhao, Jie Xiong","doi":"10.1038/s41928-024-01242-9","DOIUrl":"10.1038/s41928-024-01242-9","url":null,"abstract":"Computational spectrometers with small footprints can be integrated with other devices for use in applications such as chemical analysis, medical diagnosis and environmental monitoring. However, their spectral resolution is limited because conventional photoelectric detectors only measure an amplitude-dependent response to incident light. Here we show that a deformable two-dimensional homojunction can be used to create a microspectrometer with dual-signal spectral reconstruction. The semifloating molybdenum disulfide homojunction exhibits a giant electrostriction effect through which the kinetics of photo-generated carriers can be manipulated via an in-plane electric field generated by gate voltage. By leveraging the tunability of both amplitude and relaxation time of the photoelectric response, a dual-signal response can be used with a deep neural network algorithm to reconstruct an incident spectrum. Our dual-signal microspectrometer has a footprint of 20 × 25 µm2, offers a resolution of 1.2 nm and has a spectral waveband number of 380, which is comparable to benchtop spectrometers. A semifloating molybdenum disulfide homojunction exhibits a photoelectric response with a tunable amplitude and relaxation time, which can be used for reconstructive spectroscopy with high resolution and a small device footprint.","PeriodicalId":19064,"journal":{"name":"Nature Electronics","volume":"7 11","pages":"984-990"},"PeriodicalIF":33.7,"publicationDate":"2024-09-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142235155","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A closed-loop neurostimulation device that reaches new levels 达到新水平的闭环神经刺激设备

IF 33.7 1区工程技术

Nature Electronics Pub Date : 2024-09-11 DOI: 10.1038/s41928-024-01243-8

Mengge Wu, Kuanming Yao, Xinge Yu

引用次数: 0

A shape-morphing cortex-adhesive sensor for closed-loop transcranial ultrasound neurostimulation 用于闭环经颅超声神经刺激的形状变形皮质粘合传感器

IF 33.7 1区工程技术

Nature Electronics Pub Date : 2024-09-11 DOI: 10.1038/s41928-024-01240-x

Sungjun Lee, Jeungeun Kum, Sumin Kim, Hyunjin Jung, Soojung An, Soon Jin Choi, Jae Hyuk Choi, Jinseok Kim, Ki Jun Yu, Wonhye Lee, Hyeok Kim, Hyung-Seop Han, Mikyung Shin, Hyungmin Kim, Donghee Son

{"title":"A shape-morphing cortex-adhesive sensor for closed-loop transcranial ultrasound neurostimulation","authors":"Sungjun Lee, Jeungeun Kum, Sumin Kim, Hyunjin Jung, Soojung An, Soon Jin Choi, Jae Hyuk Choi, Jinseok Kim, Ki Jun Yu, Wonhye Lee, Hyeok Kim, Hyung-Seop Han, Mikyung Shin, Hyungmin Kim, Donghee Son","doi":"10.1038/s41928-024-01240-x","DOIUrl":"10.1038/s41928-024-01240-x","url":null,"abstract":"Transcranial focused ultrasound has shown promising non-invasive therapeutic effects for drug-resistant epilepsy due to its spatial resolution and depth penetrability. However, current manual strategies, which use fixed neurostimulation protocols, cannot provide precise patient-specific treatment due to the absence of ultrasound wave-insensitive closed-loop neurostimulation devices. Here, we report a shape-morphing cortex-adhesive sensor for closed-loop transcranial ultrasound neurostimulation. The sensor consists of a catechol-conjugated alginate hydrogel adhesive, a stretchable 16-channel electrode array and a viscoplastic self-healing polymeric substrate, and is coupled to a pulse-controlled transcranial focused ultrasound device. It can provide conformal and robust fixation to curvy cortical surfaces, and we show that it is capable of stable neural signal recording in awake seizure rodents during transcranial focused ultrasound neurostimulation. The sensing performance allows real-time detection of preseizure signals with unexpected and irregular high-frequency oscillations, and we demonstrate closed-loop seizure control supervised by intact cortical activity under ultrasound stimulation in awake rodents. A sensor that consists of a catechol-conjugated alginate hydrogel adhesive, a stretchable 16-channel electrode array and a viscoplastic self-healing polymeric substrate, and is coupled to a pulse-controlled transcranial focused ultrasound device, can be used for closed-loop transcranial ultrasound neurostimulation.","PeriodicalId":19064,"journal":{"name":"Nature Electronics","volume":"7 9","pages":"800-814"},"PeriodicalIF":33.7,"publicationDate":"2024-09-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142166048","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Sweat sensing at your fingertips 汗液感应触手可及

IF 33.7 1区工程技术

Nature Electronics Pub Date : 2024-09-03 DOI: 10.1038/s41928-024-01235-8

Zhaofeng Ouyang, Shuo Wang, Yan Wang, Hao Sun

引用次数: 0

A fingertip-wearable microgrid system for autonomous energy management and metabolic monitoring 用于自主能源管理和代谢监测的指尖可穿戴式微电网系统

IF 33.7 1区工程技术

Nature Electronics Pub Date : 2024-09-03 DOI: 10.1038/s41928-024-01236-7

Shichao Ding, Tamoghna Saha, Lu Yin, Ruixiao Liu, Muhammad Inam Khan, An-Yi Chang, Hyungjin Lee, Han Zhao, Yuanzhe Liu, Ariane Sina Nazemi, Jiachi Zhou, Chuanrui Chen, Zhengxing Li, Chenyang Zhang, Sara Earney, Selene Tang, Omeed Djassemi, Xiangjun Chen, Muyang Lin, Samar S. Sandhu, Jong-Min Moon, Chochanon Moonla, Ponnusamy Nandhakumar, Youngmin Park, Kuldeep Mahato, Sheng Xu, Joseph Wang

{"title":"A fingertip-wearable microgrid system for autonomous energy management and metabolic monitoring","authors":"Shichao Ding, Tamoghna Saha, Lu Yin, Ruixiao Liu, Muhammad Inam Khan, An-Yi Chang, Hyungjin Lee, Han Zhao, Yuanzhe Liu, Ariane Sina Nazemi, Jiachi Zhou, Chuanrui Chen, Zhengxing Li, Chenyang Zhang, Sara Earney, Selene Tang, Omeed Djassemi, Xiangjun Chen, Muyang Lin, Samar S. Sandhu, Jong-Min Moon, Chochanon Moonla, Ponnusamy Nandhakumar, Youngmin Park, Kuldeep Mahato, Sheng Xu, Joseph Wang","doi":"10.1038/s41928-024-01236-7","DOIUrl":"10.1038/s41928-024-01236-7","url":null,"abstract":"Wearable health monitoring platforms require advanced sensing modalities with integrated electronics. However, current systems suffer from limitations related to energy supply, sensing capabilities, circuitry regulations and large form factors. Here, we report an autonomous and continuous sweat sensing system that operates on a fingertip. The system uses a self-voltage-regulated wearable microgrid based on enzymatic biofuel cells and AgCl-Zn batteries to harvest and store bioenergy from sweat, respectively. It relies on osmosis to continuously supply sweat to the sensor array for on-demand multi-metabolite sensing and is combined with low-power electronics for signal acquisition and wireless data transmission. The wearable system is powered solely by fingertip perspiration and can detect glucose, vitamin C, lactate and levodopa over extended periods of time. A wearable microgrid powered solely by fingertip perspiration can monitor metabolic biomarkers over extended periods of time.","PeriodicalId":19064,"journal":{"name":"Nature Electronics","volume":"7 9","pages":"788-799"},"PeriodicalIF":33.7,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142123569","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An ultrathin organic–inorganic integrated device for optical biomarker monitoring 用于光学生物标记监测的超薄有机-无机集成装置

IF 33.7 1区工程技术

Nature Electronics Pub Date : 2024-09-03 DOI: 10.1038/s41928-024-01237-6

Kyung Yeun Kim, Joohyuk Kang, Sangmin Song, Kyungwoo Lee, Suk-Won Hwang, Seung Hwan Ko, Hojeong Jeon, Jae-Hoon Han, Wonryung Lee

{"title":"An ultrathin organic–inorganic integrated device for optical biomarker monitoring","authors":"Kyung Yeun Kim, Joohyuk Kang, Sangmin Song, Kyungwoo Lee, Suk-Won Hwang, Seung Hwan Ko, Hojeong Jeon, Jae-Hoon Han, Wonryung Lee","doi":"10.1038/s41928-024-01237-6","DOIUrl":"10.1038/s41928-024-01237-6","url":null,"abstract":"Organic electrochemical transistors can be used in wearable sensors to amplify biological signals. Other wireless communication systems are required for applications in continuous health monitoring. However, conventional wireless communication circuits, which are based on inorganic integrated chips, face limitations in terms of conformability due to the thick and rigid integrated circuit chips. Here, we report an ultrathin organic–inorganic device for wireless optical monitoring of biomarkers, such as glucose in sweat and glucose, lactate and pH in phosphate-buffered saline. The conformable system integrates an organic electrochemical transistor and a near-infrared inorganic micro-light-emitting diode on a thin parylene substrate. The device has an overall thickness of 4 μm. The channel current of the transistor changes according to the biomarker concentration, which alters the irradiance from the light-emitting diode to enable biomarker monitoring. We combine the device with an elastomeric battery circuit to create a wearable patch. We also show that the system can be used for near-infrared image analysis. A wireless monitoring system that integrates an organic electrochemical transistor and a near-infrared inorganic micro-light-emitting diode on a thin parylene substrate can be used to monitor biomarkers such as glucose, lactate and pH.","PeriodicalId":19064,"journal":{"name":"Nature Electronics","volume":"7 10","pages":"914-923"},"PeriodicalIF":33.7,"publicationDate":"2024-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142123589","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A tactile oral pad based on carbon nanotubes for multimodal haptic interaction 基于碳纳米管的触觉口腔垫，用于多模态触觉交互

IF 33.7 1区工程技术

Nature Electronics Pub Date : 2024-08-28 DOI: 10.1038/s41928-024-01234-9

Bo Hou, Dingzhu Yang, Xiaoyuan Ren, Luying Yi, Xiaogang Liu

引用次数: 0

Continuing challenges in 2D semiconductors 二维半导体的持续挑战

IF 33.7 1区工程技术

Nature Electronics Pub Date : 2024-08-28 DOI: 10.1038/s41928-024-01241-w

引用次数: 0

Two-dimensional-materials-based transistors using hexagonal boron nitride dielectrics and metal gate electrodes with high cohesive energy 使用六方氮化硼电介质和高内聚能金属栅极的二维材料晶体管

IF 33.7 1区工程技术

Nature Electronics Pub Date : 2024-08-26 DOI: 10.1038/s41928-024-01233-w

Yaqing Shen, Kaichen Zhu, Yiping Xiao, Dominic Waldhör, Abdulrahman H. Basher, Theresia Knobloch, Sebastian Pazos, Xianhu Liang, Wenwen Zheng, Yue Yuan, Juan B. Roldan, Udo Schwingenschlögl, He Tian, Huaqiang Wu, Thomas F. Schranghamer, Nicholas Trainor, Joan M. Redwing, Saptarshi Das, Tibor Grasser, Mario Lanza

{"title":"Two-dimensional-materials-based transistors using hexagonal boron nitride dielectrics and metal gate electrodes with high cohesive energy","authors":"Yaqing Shen, Kaichen Zhu, Yiping Xiao, Dominic Waldhör, Abdulrahman H. Basher, Theresia Knobloch, Sebastian Pazos, Xianhu Liang, Wenwen Zheng, Yue Yuan, Juan B. Roldan, Udo Schwingenschlögl, He Tian, Huaqiang Wu, Thomas F. Schranghamer, Nicholas Trainor, Joan M. Redwing, Saptarshi Das, Tibor Grasser, Mario Lanza","doi":"10.1038/s41928-024-01233-w","DOIUrl":"10.1038/s41928-024-01233-w","url":null,"abstract":"Two-dimensional (2D) semiconductors could potentially be used as channel materials in commercial field-effect transistors. However, the interface between 2D semiconductors and most gate dielectrics contains traps that degrade performance. Layered hexagonal boron nitride (h-BN) can form a defect-free interface with 2D semiconductors, but when prepared by industry-compatible methods—such as chemical vapour deposition (CVD)—the presence of native defects increases leakage current and reduces dielectric strength. Here we show that metal gate electrodes with a high cohesive energy—platinum and tungsten—can allow CVD-grown layered h-BN to be used as a gate dielectric in transistors. The electrodes can reduce the current across CVD-grown h-BN by a factor of around 500 compared to similar devices with gold electrodes and can provide a high dielectric strength of at least 25 MV cm−1. We examine the behaviour statistically across 867 devices, which includes a microchip based on complementary metal–oxide–semiconductor technology. Metal gate electrodes with a high cohesive energy—platinum and tungsten—can be used to mitigate leakage currents and premature dielectric breakdown across chemical vapour deposition-grown multilayer hexagonal boron nitride, allowing the material to be used as a gate dielectric in two-dimensional-materials-based transistors.","PeriodicalId":19064,"journal":{"name":"Nature Electronics","volume":"7 10","pages":"856-867"},"PeriodicalIF":33.7,"publicationDate":"2024-08-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142085067","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Author Correction: Biomimetic olfactory chips based on large-scale monolithically integrated nanotube sensor arrays 作者更正：基于大规模单片集成纳米管传感器阵列的仿生嗅觉芯片

IF 33.7 1区工程技术

Nature Electronics Pub Date : 2024-08-20 DOI: 10.1038/s41928-024-01246-5

Chen Wang, Zhesi Chen, Chak Lam Jonathan Chan, Zhu’an Wan, Wenhao Ye, Wenying Tang, Zichao Ma, Beitao Ren, Daquan Zhang, Zhilong Song, Yucheng Ding, Zhenghao Long, Swapnadeep Poddar, Weiqi Zhang, Zixi Wan, Feng Xue, Suman Ma, Qingfeng Zhou, Geyu Lu, Kai Liu, Zhiyong Fan

引用次数: 0