管型，管型偏高说明什么问题
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ZHONGKEHUANCAI
中稿作品解读
标题
Printable Epsilon-Type Structure Transistor Arrays with Highly Reliable Physical Unclonable Functions
DOI
https://doi.org/10.1002/adma.202210621
作者
Rui Wang, Kun Liang, Saisai Wang, Yaxiong Cao, Yuhan Xin, Yaqian Peng, Xiaohua Ma, Bowen Zhu, Hong Wang, Yue Hao
印刷电子有望推动未来的数据密集型技术，其潜力在非传统基板上以低成本在大面积上制造新型设备。在这些新兴技术中，存在大量的数字信息流，这需要安全的通信和身份验证。
物理不可克隆功能（PUF）提供了一个有前途的内置硬件安全系统，可与生物识别数据相媲美，该系统可以通过有源器件增材制造过程中特定于器件的内在变化来构建。然而，印刷PUF通常利用有源器件层厚度和粗糙度的固有变化。
具有足够显著变化以提高对外部环境噪声的鲁棒性的器件的电流仍然是一个挑战。本文展示了可印刷的ε型结构氧化铟锡晶体管阵列，通过修改咖啡环结构来构建高可靠性PUF。ε型结构提高了印刷可扩展性、薄膜质量和设备可靠性。
此外，沿通道厚度和长度的打印引起的不确定性会导致载流子浓度的变化。值得注意的是，在小区域内随机分布的打印液滴显着增加了这种不确定性。因此，PUF表现出近乎理想的均匀性、唯一性、随机性和可靠性。此外，PUF 对基于机器学习的攻击具有弹性，无需后处理的预测准确率仅为 55%。
中稿作品·本周精选
ZHONGKEHUANCAI
01
Volume33, Issue15 April 11, 2023
标题
Self-Healing, Photothermal-Responsive, and Shape Memory Polyurethanes for Enhanced Mechanical Properties of 3D/4D Printed Objects
DOI
https://doi.org/10.1002/adfm.202370095
Abstract（上下滑动查看）
In article number 2211579, Yonglai Lu, Runguo Wang, Xiang Lin, and co-workers design and synthesize new thermoplastic polyurethanes with self-healing, inherent photothermal effects, and excellent printability to address the growing demand for 3D/4D printed objects in terms of performance and precision. The as-prepared materials exhibit shape memory properties, demonstrating their potential for 4D printing. This printing strategy can promote the development for next-generation intelligent devices.
02
Volume10, Issue11 April 14, 2023
标题
Loss of RPA1 Impairs Peripheral T Cell Homeostasis and Exacerbates Inflammatory Damage through Triggering T Cell Necroptosis
DOI
https://doi.org/10.1002/advs.202370061
Abstract（上下滑动查看）
The peripheral T cell pool is maintained at dynamic homeostasis through fine-tuning of thymic output and self-renewal of naïve T cells. Lymphopenia or reduced lymphocyte number is implicated in autoimmune diseases, yet little is known about the homeostatic mechanisms. Here, it is reported that the replication protein A1 (RPA1) plays a critical role in T cell homeostasis. Utilizing T cell-specific Rpa1-deficient (Rpa1fl/fl Cd4-cre) mice, loss of Rpa1 results in lymphopenia through restraining peripheral T cell population and limiting TCR repertoire diversity. Moreover, Rpa1fl/fl Cd4-cre mice exhibit increased susceptibility to inflammatory diseases, including colitis and hepatitis. Clinical analysis reveals that the expression of RPA1 is reduced in patients with ulcerative colitis or other autoinflammatory diseases. Mechanistically, depletion of RPA1 activates ZBP1-RIPK3 signaling through triggering the genomic DNA leakage into cytosol, consequently resulting in T cell necroptosis. This necroptotic T cell death induced by RPA1 deficiency allows the release of damage-associated molecular patterns (DAMPs), which in turn recruits leukocytes and exacerbates inflammatory response. Reciprocally, chemical or genetic inhibition of necroptosis signaling can ameliorate the Rpa1 deficiency-induced inflammatory damage. The studies thus uncover the importance of RPA1-ZBP1-RIPK3 axis in T cell homeostasis and provide a promising strategy for autoinflammatory disease treatment.
03
Volume2, Issue1 January 2023
标题
Inside Back Cover:
DOI
https://doi.org/10.1002/idm2.12075
Abstract（上下滑动查看）
Grain boundaries (GBs) can be treated as two-dimensional interfacial phases. As bulk phase diagrams and calculation of phase diagram methods serve as a foundation for modern materials science, it is proposed to extend them to GBs to have equally significant impacts. Thermodynamic models, atomistic simulations, and machine learning methods can be used to compute GB “phase” diagrams. For example in the cover, atomistic simulation data are used to train an artificial neural network model to forecast GB properties as functions of four independent compositional degrees of freedom plus temperature in 5-D for a given GB in high-entropy alloys.
04
Volume7, Issue4 April 20, 2023
标题
Unraveling the Steric Link to Copper Precursor
Decomposition: A Multi-Faceted Study for the Printing of Flexible Electronics
DOI
https://doi.org/10.1002/smtd.202370022
Abstract（上下滑动查看）
In article number 2300038, Caroline E. Knapp and co-workers have established a link between the geometry of copper precursors and their decomposition to copper metal by single crystal X-ray diffraction investigation alongside density functional theory calculations. Precursor synthesis and their decomposition profiles are reported. Inkjet printing yielded conductive (ρ = 4.7–5.3 × 10−7 Ω m; ≈30% bulk) copper features onto paper and polyimide substrates at 125 °C and 150 °C.
05
Volume 95, Issue 14 April 11, 2023
标题
Well-Ordered Au Nanoarray for Sensitive and Reproducible Detection of Hepatocellular Carcinoma-Associated miRNA via CHA-Assisted SERS/Fluorescence Dual-Mode Sensing
DOI
https://doi.org/10.1021/acs.analchem.2c05640
Abstract（上下滑动查看）
Ultra-sensitive detection of cancer-related biomarkers in serum is of great significance for early diagnosis, treatment, prognosis, and staging of cancer. In this work, we proposed a surface-enhanced Raman scattering and fluorescence (SERS/FL) dual-mode biosensor for hepatocellular carcinoma (HCC)-related miRNA (miR-224) detection using the composition of well-arranged Au nanoarrays (Au NAs) substrate coupled with the target-catalyzed hairpin assembly (CHA) strategy. The hot spots densely and uniformly distributed on the Au array offers considerably enhanced and reproducible SERS signals, along with their wide and open surface to facilitate miR-224 adsorption. By this sensing strategy, the target miR-224 can be detected in a wide linear range (1 fM to 1 nM) with a limit of detection of 0.34 fM in the SERS mode and 0.39 fM in the FL mode. Meanwhile, this biosensor with exceptional specificity and anti-interference ability can discriminate target miR-224 from other interference miRNAs. Practical analysis of human blood samples also demonstrated considerable reliability and repeatability of our developed strategy. Furthermore, this biosensor can distinguish HCC cancer subjects from normal ones and monitor HCC patients before and after hepatectomy as well as guide the distinct Barcelona clinic liver cancer (BCLC) stages. Overall, benefiting from a well-arranged Au nanoarray, CHA amplification strategy, and SERS/metal enhanced fluorescence effect, this established biosensor opens new avenues for the early prediction, warning, monitoring, and staging of HCC.
06
April 12, 2023 Volume 23, Issue 7
标题
Interfacial Nanoblisters Formed in Water Serving as Freestanding Platforms for Measuring Elastic Moduli of Polymeric Nanofilms
DOI
https://pubs.acs.org/doi/10.1021/acs.nanolett.2c05070
Abstract（上下滑动查看）
Polymeric nanofilms have been widely utilized in diverse cutting-edge technologies, yet accurately determining their elastic moduli remains challenging. Here we demonstrate that interfacial nanoblisters, which are produced by simply immersing substrate-supported nanofilms in water, represent natural platforms for assessing the mechanical properties of polymeric nanofilms using the sophisticated nanoindentation method. Nevertheless, high-resolution, quantitative force spectroscopy studies reveal that the indentation test must be performed on an effective freestanding region around the nanoblister apex and meanwhile under an appropriate loading force, to obtain load-independent, linear elastic deformations. The nanoblister stiffness increases with either decreasing its size or increasing its covering film thickness, and such size effects can be adequately rationalized by an energy-based theoretical model. The proposed model also enables an exceptional determination of the film elastic modulus. Given that interfacial blistering is a frequently occurring phenomenon for polymeric nanofilms, we envision that the presented methodology would stimulate broad applications in relevant fields.
07
Volume29, Issue10 February 16, 2023
标题
Asymmetric Rubottom-Type Oxidation Catalyzed by Chiral Calcium Phosphates
DOI
https://doi.org/10.1002/chem.202203720
Abstract（上下滑动查看）
A highly efficient catalytic asymmetric Rubottom-type oxidation is described. Using meta-chloroperbenzoic acid (m-CPBA) as the oxidant and chiral calcium phosphate as the catalyst, the facile transformation enables direct hydroxylation of N-Boc oxindoles and β-ketoesters in high yields (up to 99 %) and in a highly enantioenriched fashion (up to >99 % ee). The application of the established method was demonstrated by the synthesis of a pharmaceutically important 3-hydroxyoxindole with excellent enantiocontrol.
08
Volume54, Issue5 2023
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管型(管型偏高说明什么问题)
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