Advanced Electronic Materials
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2024
·
IF 5.3
Yaoxuan Cui,Qingpeng Cao,Xubin Zheng,Hao Dong,Jin Wang,Feng Xu,Libin Qian,Di Wang
Daily monitoring of psychological parameters, encompassing chemical and physical signals, has become increasingly valuable for the management of chronic diseases. Among various vital signs, carbon dioxide exchange and pulse rate (PR) serve as critical indicators for the comprehensive assessment of the cardiopulmonary system. However, simultaneous monitoring of these chemical and physical signals in a nonintrusive manner is challenging. This study presents a wearable bracelet that enables simultaneous monitoring of transcutaneous carbon dioxide (TcCO 2 ) and PR using a nanomaterials-modified lensless CMOS imager. The proposed bracelet exhibits exceptional sensitivity, selectivity, and anti-humidity interference in TcCO 2 detection, and achieves reliable tracking of TcCO 2 and PR fluctuations induced by daily activities, demonstrating great potential in the comprehensive assessment of cardiopulmonary system. In addition, the proposed compact imaging approach is multiplexed and extensible, providing a promising sensing platform for the future development of multifunctional wearable devices.
研究领域:
医学工程
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生物传感
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健康监测
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产品关联
DOI
高影响因子
Nanophotonics
·
2024
·
IF 6.5
Peihan Sun,Xiangmin Hu,Shuhao Yuan,Yanyan Peng,Tingfa Xu,Haizheng Zhong
Miniature spectrometer is powerful tool for scientific research and industrial inspection. Here, we report the fabrication of graded perovskite filters with tunable bandgap and their application in constructing miniature spectrometer. The graded perovskite filters were fabricated using a Finkelstein reaction between in-situ formed halogen ion with a preformed MAPbX 3 film. The graded bandgap of perovskite films can be well tunned from 400 to 750 nm by controlling the volume ratio between 5,5-dimethyl-1-pyrroline N -oxide and benzyl chloride(bromide). By combining a deep residual network, graded bandgap perovskite film and commercial CMOS sensor chip, a miniature spectrometer is demonstrated, achieving an accurate spectrum reconstruction (PSNR = 40.749) with monochromatic spectral resolution of 1.31 nm.
研究领域:
材料科学
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光学工程
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人工智能应用
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产品关联
DOI
PubMed
高影响因子
ADVANCED FUNCTIONAL MATERIALS
·
2023
·Vol. 33
·期 48
·2305379
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IF 19
Jiaona Zhang,Wanting Wang,Jiahao Zhu,Jialiang Wang,Changbin Zhao,Tianyu Zhu,Qinqi Ren,Qi Liu,Rui Qiu,Min Zhang,Xinwei Wang,Hong Meng,Kuan-Chang Chang,Shengdong Zhang,Mansun Chan
Flexible electronics based on complementary metal-oxide-semiconductor (CMOS) technology have enabled a smart soft world. However, the trade-off among flexibility, density, and electrical performance has been a long-lasting unresolved issue. Here, a monolithic three-dimensional (M3D) CMOS design is proposed to address this problem and realize ultra-flexible electronics with high electronic-performance and integration. This design utilizes vertically stacked p-type carbon nanotube transistors and n-type indium gallium zinc oxide ones, which share common gates and drains, saving the inter tier vias required in the traditional M3D structure to reduce routing and improve flexibility. With this design, CMOS logic gates, multi-stage circuits, ring oscillators (ROs) and memory modules, are demonstrated. This design enables circuits to save up to 45% of area compared with their planar counterparts. Particularly, inverters exhibit a record-high gain of 191, and 55-stage ROs can operate well even after bending at a 500-µm radius for 50 cycles, exhibiting the highest flexibility among the reported ones. The ultra-flexible and high-integration RO enables a wearable light recorder to collect harmful blue light shining into human eyes by simply attaching the circuits on a contact lens. This integration method provides possibilities for developing complex-function wearable electronics.
研究领域:
电子工程
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材料科学
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集成电路设计
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DOI
高影响因子
ACS Nano
·
2025
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IF 16
Huicheng Hu,Jing Liu,Jing Liu,Mohan Yuan,Haifei Ma,Binbin Wang,Ya Wang,Hang Xia,Junrui Yang,Liang Gao,Jianbing Zhang,Jiang Tang,Xinzheng Lan
Photodetectors based on HgTe colloidal quantum dots (CQDs) are expected to enable the next generation of infrared detection technology due to their low-cost preparation, widely tunable absorption, and direct integration with Si-based electronics. However, the fabrication of HgTe CQD photodiode focal plane arrays (FPAs) has been hampered by the creation of rectifying homojunctions through delicate doping modulation and the time-consuming layer-by-layer assembly of the QD photoactive layer. Herein we address these challenges by exploring energetically favored ZnO/HgTe/ZnTe double heterojunctions (DH), and by forming colloidally stable HgTe ink that enables one-step direct film deposition. The DH HgTe CQD photodiode operates over a broad spectral range from 400 to 1800 nm, comparable to that of uncooled InGaAs detectors, with a record peak EQE of 56% at 1600 nm. A short-wave infrared (SWIR) imager has been finally demonstrated through monolithic integration with a CMOS readout integrated circuit (ROIC) comprising 640 × 512 pixels. The DH architecture is beneficial for the construction of high-performance HgTe CQD photodiodes compatible with silicon chip integration.
研究领域:
材料科学
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光电探测技术
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产品关联
DOI
PubMed
高影响因子
Nature Communications
·
2024
·Vol. 15
·期 1
·1-9
·
IF 14.7
Xiao Kai,Wan Jing,Xie Hui,Zhu Yuxuan,Tian Tian,Zhang Wei,Chen Yingxin,Zhang Jinshu,Zhou Lihui,Dai Sheng,Xu Zihan,Bao Wenzhong,Zhou Peng
Embedded Dynamic RAM (eDRAM) has become a key solution for large-capacity cache in high-performance processors. A heterogeneous two transistor capacitorless eDRAM (2T-eDRAM) that combines silicon and molybdenum disulfide (MoS 2 ) is reported to address the short retention issue in conventional gain cell (GC) eDRAMs meanwhile eliminate the pillar capacitor in one transistor and one capacitor (1T1C) eDRAMs. The MoS 2 write transistor with low OFF current (I OFF ) enables long data retention, while the Si read transistor offers high drive current and logic compatibility. This combination enhances data retention by 1000 times and sense margin by 100 times respectively compared to full Si and MoS 2 counterparts. A three-dimensional (3D) design stacking MoS 2 on Si is demonstrated with back-end-of-line (BEOL) process to double integration density. With 6000 s data retention, 35 μA/μm sense margin, 5 ns access speeds, 3D integration and CMOS logic compatibility, this Si-MoS 2 eDRAM marks a significant advancement in memory technology.
研究领域:
半导体器件
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存储技术
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微电子
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DOI
PubMed
高影响因子
FISH & SHELLFISH IMMUNOLOGY
·
2023
·
IF 4.7
Senyue Liu,Ming Xu,Baipeng Chen,Fulong Li,Yongqiang Deng,Yufan Zhang,Gang Lin,Defang Chen,Yi Geng,Yangping Ou,Xiaoli Huang
Because of the low host specificity , Ichthyophthirius multifiliis ( Ich ) can widely cause white spot disease in aquatic animals, which is extremely difficult to treat. Prior research has demonstrated a considerable impact of concentrated mannan-oligosaccharide (cMOS) on the prevention of white spot disease in goldfish , but the specific mechanism is still unknown. In this study, transcriptome sequencing, histological analysis, immunofluorescence analysis, phagocytosis activity assay and qRT-PCR assay were used to systematically reveal the potential mechanism of cMOS in supporting the resistance of goldfish ( Carrasius auratus ) to Ich invasion. According to the transcriptome analysis, the gill tissue of goldfish receiving the cMOS diet showed greater expression of mannose-receptor (MRC) related genes, higher phagocytosis activity, up-regulated expression of phagocytosis-related genes and inflammatory-related genes compared with the control, indicating that cMOS can have an effect on phagocytosis and non-specific immunity of goldfish. After the Ich challenge, transcriptome analysis revealed that cMOS fed goldfish displayed a higher level of phagocytic response, whereas non-cMOS fed goldfish displayed a greater inflammatory reaction. Besides, after Ich infection, cMOS-fed goldfish displayed greater phagocytosis activity, a stronger MRC positive signal, higher expression of genes associated with phagocytosis ( ABCB2 , C3 , MRC ), and lower expression of genes associated with inflammation ( IL-1β, IL-17, IL-8, TNF-α, NFKB ). In conclusion, our experimental results suggest that cMOS may support phagocytosis by binding to MRC on the macrophage cell membrane and change the non-specific immunity of goldfish by stimulating cytokine expression. The results of this study provide new insights for the mechanism of cMOS on parasitic infection, and also suggest phagocytosis-related pathways may be potential targets for prevention of Ich infection.
研究领域:
水产养殖
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免疫学
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寄生虫学
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分子生物学
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产品关联
DOI
PubMed
高影响因子
Nano Energy
·
2025
·
IF 17.1
Yixin Cao,Yuxiao Fang,Li Yin,Yang Fang,Ganggui Zhu,Linhui Li,Zhuo Chen,Jun Cao,Yina Liu,Chun Zhao,Guohua Lu
The physical scaling limitations of CMOS technology and the impending end of Moore’s Law have led to increasing interest in neuromorphic computing approaches to enhance computational performance. Inspired by the parallel computing capabilities of the human brain, neuromorphic devices that integrate memory, computation and perception have been developed to address these challenges. Among various perception simulations, vision is particularly important, as it accounts for over 70 % of sensory input in humans. Full-spectrum technology, as a method capable of capturing rich optical information, has effectively realized the process of simulating visual target detection. Meanwhile, the perovskite-structured material CsPbI 3 , with its wide-spectrum absorption, high photoelectric conversion efficiency, and excellent stability, which makes CsPbI 3 an ideal candidate for visual arrays that can span the full spectrum of light. In this study, we propose a full-spectrum perovskite-based visual array for use in unmanned object detection platforms, replacing the conventional perception, memory, and computation units. By extracting parameters from all 64 devices on a single visual array and inputting them into a neural network, we achieved a more realistic and comprehensive simulation of ground target detection and recognition compared to previous methods. The results demonstrate significant improvements in data processing efficiency and performance, suggesting broad potential for application in intelligent devices, industrial automation, and medical equipment .
研究领域:
神经形态工程
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光电子学
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人工智能
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材料科学
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计算机视觉
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传感器与探测器
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产品关联
DOI
高影响因子
Nature Communications
·
2024
·Vol. 15
·期 1
·1-11
·
IF 14.7
Wang Kun,Shi Jianwei,Lai Wenxuan,He Qiang,Xu Jun,Ni Zhenyi,Liu Xinfeng,Pi Xiaodong,Yang Deren
Integrated circuit anti-counterfeiting based on optical physical unclonable functions (PUFs) plays a crucial role in guaranteeing secure identification and authentication for Internet of Things (IoT) devices. While considerable efforts have been devoted to exploring optical PUFs, two critical challenges remain: incompatibility with the complementary metal-oxide-semiconductor (CMOS) technology and limited information entropy. Here, we demonstrate all-silicon multidimensionally-encoded optical PUFs fabricated by integrating silicon (Si) metasurface and erbium-doped Si quantum dots (Er-Si QDs) with a CMOS-compatible procedure. Five in-situ optical responses have been manifested within a single pixel, rendering an ultrahigh information entropy of 2.32 bits/pixel. The position-dependent optical responses originate from the position-dependent radiation field and Purcell effect. Our evaluation highlights their potential in IoT security through advanced metrics like bit uniformity, similarity, intra- and inter-Hamming distance, false-acceptance and rejection rates, and encoding capacity. We finally demonstrate the implementation of efficient lightweight mutual authentication protocols for IoT applications by using the all-Si multidimensionally-encoded optical PUFs.
研究领域:
电气工程
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材料科学
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光学
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密码学
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物联网
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产品关联
DOI
PubMed
高影响因子
危险品化学品经营许可证（带存储）