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Floquet hybrid skin-topological effects in checkerboard lattices with large Chern numbers

Photonics Research 2025年第5期13卷 1321-1329页

作者： Zhang, Yi-Ling Wang, Li-Wei Liu, Yang Chen, Zhao-Xian Jiang, Jian-Hua School of Physical Science and Technology Collaborative Innovation Center of Suzhou Nano Science and Technology Soochow University Suzhou215006 China School of Physical Sciences University of Science and Technology of China Hefei230026 China National Laboratory of Solid State Microstructures Collaborative Innovation Center of Advanced Microstructures College of Engineering and Applied Sciences Nanjing University Nanjing210093 China School of Biomedical Engineering Division of Life Sciences and Medicine University of Science and Technology of China Hefei230026 China Suzhou Institute for Advanced Research University of Science and Technology of China Suzhou215123 China

Non-Hermitian topology provides an emergent research frontier for studying unconventional topological phenomena and developing new materials and applications. Here, we study the non-Hermitian Chern bands and the associated non-Hermitian skin effects in Floquet checkerboard lattices with synthetic gauge fluxes. Such lattices can be realized in a network of coupled resonator optical waveguides in two dimensions or in an array of evanescently coupled helical optical waveguides in three dimensions. Without invoking nonreciprocal couplings, the system exhibits versatile non-Hermitian topological phases that support various skin-topological effects. Remarkably, the non-Hermitian skin effect can be engineered by changing the symmetry, revealing rich non-Hermitian topological bulk-boundary correspondences. Our system offers excellent controllability and experimental feasibility, making it appealing for exploring diverse non-Hermitian topological phenomena in photonics. © 2025 Chinese Laser Press.

关键词： Crystal lattices

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An azo bond primary cleavage and C–C bond secondary cleavage-based polymeric β-lapachone prodrug for selective anti-cancer therapy

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Science China Materials 2025年第2期68卷 640-651页

作者： Weidong Zhao Mengfei Zheng Hongyu Chu Jingxuan Zhang Kun Wang Chenguang Yang Na Shen Zhaohui Tang Key Laboratory of Polymer Ecomaterials Changchun Institute of Applied ChemistryChinese Academy of SciencesChangchun 130022China School of Applied Chemistry and Engineering University of Science and Technology of ChinaHefei 230026China Department of Gastrointestinal Colorectal and Anal SurgeryChina-Japan Union Hospital of Jilin UniversityChangchun 130033China Department of Pathogenbiology State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious DiseasesCollege of Basic MedicineJilin UniversityChangchun 130062China

β-Lapachone (β-Lap) is a promising orthonaphthoquinone drug for cancer treatment and has been inclinical trials. Its application is constrained by the low aqueoussolubility, and severe side effects. Even prodrug designation isan effective approach to render it with tumor selectivity, it islimited by the lack of modifiable groups on β-Lap. Herein, anovel azo bond primary cleavage and carbon–carbon (C–C)bond secondary cleavage-based polymeric β-Lap prodrug(Azo-Lap NP) is designed, in which the self-immolated paraaminobenzyl linker is connected to poly(L-glutamic acid)(PGlu) via azo linkage and the responsive drug release of β-Lapagainst tumors can be achieved under high NAD(P)H:quinoneoxidoreductase 1 (NQO1) expression and low pH environmentin tumors. The effective covalent loading of β-Lap by Azo-LapNPs permitted a high administration dose of β-Lap and enabled significant tumor retention time. Moreover, Azo-LapNPs markedly reduced the side effects of β-Lap by avoidinghemolysis and the production of methemoglobin. The safety ofAzo-Lap NPs administration is validated in the antitumorexperiment of mice. In the 4T1 model, Azo-Lap NPs exhibiteda markedly higher tumor suppression rate than β-Lap. Thiswork provides an effective and safe polymeric prodrug fortumor selective delivery of β-Lap.

关键词： β-lapachone NQO1 C-C bond cleavage polymeric nanoprodrug azo linkage

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Lady tasting tea revisited: A nanozyme-based artificial taste sensor for tea differentiation and brewing process analysis

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Chemical engineering Journal 2025年 512卷

作者： Wei, Haili Xia, Shiyu Sang, Xueqing Kauno, Juliana Gaithan Dong, Zhiyong Zhang, Yue Nie, Jinfang Yuan, Yali Xu, Guobao Niu, Wenxin State Key Laboratory of Electroanalytical Chemistry Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun130022 China School of Applied Chemistry and Engineering University of Science and Technology of China Hefei230026 China Guangxi Key Laboratory of Electrochemical and Magnetochemical Functional Materials College of Chemistry and Bioengineering Guilin University of Technology Guangxi Guilin541006 China

The "Lady Tasting Tea" is a classic experiment in statistics, often celebrated for its contribution to the field, though the lady's extraordinary taste sensitivity is less frequently acknowledged. Herein, we developed a highly sensitive nanozyme-based artificial taste sensor, which differentiates teas and brewing processes, similar to the "Lady Tasting Tea" experiment. The sensor employs PdSb concave nanocubes, which exhibit enhanced peroxidase activity due to the oxophilicity of Sb, to construct a cross-responsive sensing platform that simultaneously identifies tea polyphenols and authenticates complex blank tea samples. With its multi-differentiation ability to simulate human taste, this platform objectively demonstrates the flavor differences in milk tea based on the order of milk and tea addition, providing reliable data to distinguish taste differences without subjective interference. Overall, this work presents a new approach for designing nanozyme-based sensing platforms to simulate human taste. © 2025 Elsevier B.V.

关键词： Artificial taste Nanozyme Oxophilic elements Palladium Underpotential deposition

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Nitrogen-doped carbon-coated molybdenum disulfide composites grown on modified graphite: Stable structure and rapid ion diffusion promote ultra-long lifespan in lithium-ion batteries

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Journal of Alloys and Compounds 2025年 1026卷

作者： Yu, Juan Tian, Xiaoxu Zhang, Hao Fan, Jiale Zhao, Junkai Ma, Zhiyuan College of Metallurgical Engineering Xi'an University of Architecture and Technology Xi'an710043 China Institute of Resources Utilization and Rare Earth Development Guangdong Academy of Sciences Guangzhou510650 China State Key Laboratory of Separation and Comprehensive Utilization of Rare Metals Guangzhou510650 China

Molybdenum disulfide (MoS2) has a unique layered structure, and its large interlayer spacing facilitates the insertion and extraction of lithium ions. However, due to the instability of its electrode material structure and slow electron/ion diffusion rate, it exhibits poor cycling stability and low rate performance, which limits its application in lithium-ion batteries. Therefore, optimizing the design of high-performance molybdenum disulfide based materials for lithium-ion battery anodes remains a major challenge in current research. This article uses polyvinylpyrrolidone (PVP) as a soft template and graphite ball milled with PVP as a hard template to synthesize a nitrogen doped carbon coated MoS2 composite material (MoS2/PG) grown on graphite by hydrothermal method. In the prepared composite material, MoS2 exhibits a flower ball shape with a diameter of about 230 nm. Through the connection of the interface carbon layer, MoS2 can grow uniformly and firmly on the graphite surface. This structure plays a crucial role at the microscale, not only promoting the ordered growth of MoS2 on the surface of modified graphite, but also providing stable mechanical support for it. This small particle size and unique growth structure play an important role in its excellent electrochemical performance, as they not only provide rapid electron transfer and ion diffusion, but also effectively alleviate the volume change of MoS2 during repeated charge and discharge processes. The MoS2/PG electrode exhibits excellent cycling and high rate performance, maintaining a specific capacity of 345.21 mAh g−1 after 1000 cycles at a current density of 1 A g−1, with a capacity retention rate of up to 80.77 %;At a cycle rate of 5 C, the average specific capacity is 364.44mAh g−1. © 2025 Elsevier B.V.

关键词： Layered semiconductors

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Genome compaction underlies the molecular adaptation of bay cedar(Suriana maritima)to the extreme habitat on the tropical coral islands

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Plant Diversity 2025年第2期47卷 337-340页

作者： Miaomiao Shi Ping Liang Zhonglai Luo Yu Zhang Shiran Gu Xiangping Wang Xin Qian Shuguang Jian Kuaifei Xia Shijin Li Zhongtao Zhao Tieyao Tu Dianxiang Zhang State Key Laboratory of Plant Diversity and Specialty Crops/Guangdong Provincial Key Laboratory of Applied Botany/Key Laboratory of National Forestry and Grassland Administration on Plant Conservation and Utilization in Southern China South China Botanical GardenChinese Academy of SciencesGuangzhou 510650China South China National Botanical Garden Guangzhou 510650China Department of Biological Sciences Brock UniversitySt.CatharinesOntarioL2A 3S1Canada School of Life Sciences and Medicine Shandong University of TechnologyZibo 255000China College of Life Sciences Fujian Agriculture and Forestry UniversityFuzhou 350002China CAS Engineering Laboratory for Vegetation Ecosystem Restoration on Islands and Coastal Zones&Key Laboratory of Vegetation Restoration and Management of Degraded Ecosystems South China Botanical GardenChinese Academy of SciencesGuangzhou 510650China

Tropical coral islands represent one of the extremely stressful ecosystems,characterized by high salinity,seasonal drought,heat,strong ultraviolet radiation,and infertile soil,which constraint species occurrence,limit plant growth and development,and reduce species richness comparing to tropical continental islands with mesophytic habitats(Li et al.,2024;Ren et al.,2017;Tu et al.,2022,2024).Coupled with global climate changes,these adverse conditions have been being exacerbated,leading to extensive degradation of ecosystems throughout the tropical coral islands(Li et al.,2021).Native insular plant resources provide enormous potentials in island greening and ecological restoration,since they have colonized and become well adapted to the specialized habitat on tropical coral islands,evolving a series of functional traits and molecular strategies to accommodate the abiotic ***,understanding the genomic make-up of these plants will help uncover molecular mechanisms underlying adaptation to tropical coral ***,contrary to the numerous genomic studies done for other extreme habitats,such as deserts(Hu et al.,2021;Ma et al.,2013),alpine regions(Zhang et al.,2023),intertidal habitats(Feng et al.,2021;Hu et al.,2020;Natarajan et al.,2021),and karst caves(Feng et al.,2020),molecular adaptation of plants on the tropical coral islands remains to be elucidated.

关键词： Coral islands Extreme environment Gene loss Genome reduction Molecular adaptation Transposable elements reduction

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Smart defect detection and sortation through image processing for corn

Smart defect detection and sortation through image processin...

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2020 IEEE Region 10 Conference, TENCON 2020

作者： Montanez, John Joshua F. Bicol State College of Applied Sciences and Technology College of Engineering and Architecture Naga City Philippines

ISBN: (纸本)9781728184555

This research aims to develop smart defect detection and sortation for corn with the use of image processing. This project helps to speed up manual inspection to improve productivity and reduce the time consumed by farmers in sorting. The defect detection process is done through image processing using an open computer vision library and Python. The corn is manually placed in the roller conveyor, passing under a camera acquiring the real-time image. The sorting process eliminates the damaged corn from those that were in good condition. The system acquires real-time image data from a camera feed to a computer for analyzing purposes. Images were scanned as the corn ear was traveling through the conveyor. A program that effectively analyzes acquired corn images' required features was developed in Python using the Open Computer Vision (OCV) library. A conveyor that comes with a built-in corn sortation mechanism was controlled by Raspberry Pi that directs the corn to its desired group. On the evaluation of the accuracy of the system, a series of trials were conducted. The result of the evaluation yielded a 92% success rate in terms of defect detection and sortation. Revisions were made after the initial testing of the project. Problems and its causes were identified to improve the performance of the whole system. © 2020 IEEE.

关键词： Python

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Development of an Automated and Electronic Transport System 12

Development of an Automated and Electronic Transport System

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12th IEEE Symposium on Computer Applications and Industrial Electronics, ISCAIE 2022

作者： Esguerra, Bennyvic Joyce Ivy Aragon, Ma. Cavita, Christian Pamil, Anthony James Robles, David Tud, Roderick Verdadero, Marvin Bicol State College of Applied Sciences and Technology College of Engineering and Architecture Naga City Philippines

ISBN: (纸本)9781665487030

The Automated and Electronic Transport System for the Blind is a project developed with the use of new advancements in microcontroller and sensor technology applied in electronic-controlled vehicles. This study uses a Product Development Design wherein the researchers focused on developing an Automated and Electronic Transport System for the Blind which included designing the sub-systems responsible for the operation of the transport system and its physical appearance, determining the appropriate components and suitable materials for the transport system and evaluating its performance in terms of its functionality, and safety. It has an automated navigation system responsible for controlling the movement of the transport system from one station to another. The researchers incorporated object detection and automatic speed regulation for the safety of the passenger. The transport system was integrated with a manual operation controlled by a yoke for direction and speed, a pedal for the braking system, and switches for other peripherals. The transport system can operate at a maximum speed of ten kilometers per hour during its automated operation which matches the maximum speed of existing electric wheelchairs in the market. The prototype can carry a maximum weight capacity of one hundred kilograms (100 kg). The researchers gathered data in evaluating its performance in terms of its functionality and safety. It can be used by visually-impaired persons in schools, industrial plants, parks, other persons with disability. © 2022 IEEE.

关键词： Object detection

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Mechanism for Improving Acid-Induced Hazelnut Protein Gels Through High-Pressure Homogenization: Effect on Structural, Rheological, Thermal and Gelling Properties

SSRN

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SSRN 2025年

作者： Gul, Osman Akgun, Abdullah Maribao, Iannie P. Parlak, Mahmut Ekrem Saricaoglu, Furkan Turker Kastamonu University Faculty of Engineering and Architecture Department of Food Engineering Kastamonu37200 Turkey Trakya University Faculty of Engineering Department of Food Engineering Edirne22030 Turkey Mindanao State University Tawi-Tawi College of Technology and Oceanography College of Fisheries Sanga-Sanga Bongao Tawi-Tawi7500 Philippines Bursa Technical University Faculty of Engineering and Natural Sciences Food Engineering Department Bursa16310 Turkey

This study aimed to investigate the effects of high-pressure homogenization (HPH) (0, 25, 50, 100, and 150 MPa) pretreatment on the structural, rheological, thermal, and gelling properties of alkaline-extracted hazelnut protein isolate gels induced by glucono-δ-lactone (GDL). Homogenization pretreatment shortened the time required to obtain the maximum G′ value (12.65 Pa) from 32 to 28 min in the control sample. The particle size of protein isolates decreased with increasing pressure, resulting in lower particle size aggregates after gelation and in a denser gel structure with increasing gel hardness (from 1.52 g to 2.06 g) and WHC (from 31.95% to 48.36%). FT-IR spectroscopy revealed that HPH pretreatment and gelling time changed the secondary structure of the protein, promoting the formation of hazelnut protein gels. Hazelnut gel pretreated at 150 MPa exhibited the highest apparent viscosity and G′ value, indicating a more elastic and stronger gel network structure. The gel intermolecular force results showed that the contribution of hydrophobic interactions to gel formation was significant, and the chemical bond content of the gels increased with increasing pressure up to 100 MPa. The thermal and physical stability of the gels were also improved by HPH pretreatment. Overall, HPH pretreatment has the potential to enhance hazelnut protein gel properties for industrial food applications, and the hazelnut protein isolate pretreated at 150 MPa exhibited the best gel performance. © 2025, The Authors. All rights reserved.

关键词： Near infrared spectroscopy

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Design and synthesis of chromene-triazole hybrids via recyclable magnetic nanocatalyst: Potent dual-acting anticancer agents targeting apoptotic and microtubule dynamics

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Journal of Molecular Structure 2025年 1338卷

作者： Saadh, Mohamed J. Jawad, Zainab Nizar Younis, Shahad Mohammed Dhiaa Mohammed, Wathiq Kh. Sultan, Muntadher Kadhum Rizaev, Jasur Altimari, Usama S. Naser, Mokhtar Jasim Shaghnab, Murtadha Laftah Shareef, Hasanain Khaleel Ahmad, Irfan Alawadi, Ahmed Faculty of Pharmacy Middle East University Amman 11831 Jordan Department of Biology. College of education for pur sciences University of Kerbala Iraq Department of Aesthetic and Laser Techniques Al-Zahrawi University College Karbala Iraq Department of Pharmacy Al-Noor University College Nineveh Iraq Department of Medical Laboratories Technology Al-Hadi University College Baghdad 10011 Iraq Department of Medical Laboratories Technology Mazaya university college Iraq Iraq Department of Public health and Healthcare management Rector Samarkand State Medical University 18 Amir Temur Street Samarkand Uzbekistan Department of Medical Laboratories Technology AL-Nisour University College Baghdad Iraq College of Health and Medical Technology Al-Ayen University Thi-Qar 64001 Iraq College of Pharmacy National University of Science and Technology Dhi Qar Iraq Department of Medical Biotechnology College of Science Al-Mustaqbal University Babylon 51001 Iraq Biology Department College of Science for Women University of Babylon Babylon 51001 Iraq Department of Clinical Laboratory Sciences College of Applied Medical Science King Khalid University Abha Saudi Arabia College of technical engineering the Islamic University Najaf Iraq College of technical engineering the Islamic University of Al Diwaniyah Iraq College of technical engineering the Islamic University of Babylon Iraq

This study introduces a pioneering approach in cancer therapy via the green synthesis of 1,2,4-triazole chromene derivatives, utilizing a magnetically recyclable nanocatalyst. A core-shell MFe₂O₄@Piperazine magnetic nanocatalyst (MNPs) was synthesized and thoroughly characterized through FT-IR, XRD, EDS, FESEM, TEM, and VSM analyses, confirming its efficient catalytic activity. The nanocatalyst enabled a one-pot, multicomponent Knoevenagel-condensation-cyclization cascade reaction under eco-friendly conditions, yielding a library of 1,2,4-triazole chromene hybrids (7a-i and 8a-i). These hybrids demonstrated significant antiproliferative effects against A549, MCF-7, and HepG2 cancer cell lines. Notably, compounds 7e and 8e, containing a 3,4,5-trimethoxy pharmacophore, exhibited potent cytotoxicity against MCF-7 breast cancer cells (IC50: 1.21 and 1.02 μM, respectively), surpassing the clinical reference drug, etoposide (Etoposide). Importantly, these compounds displayed high cancer cell selectivity with minimal toxicity to normal L929 cells. Mechanistic studies confirmed a dual-action pathway involving apoptosis induction and microtubule destabilization. This research not only presents a sustainable synthesis platform for bioactive compounds but also identifies promising anticancer leads, paving the way for advancements in cancer therapeutics © 2025 Elsevier B.V.

关键词： Catalyst activity

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Robust Tunnel TaOx Passivating Interlayer Enables Long-Term Solar Water Oxidation

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Angewandte Chemie - International Edition 2025年 e202506326页

作者： Wang, Yuanqi Zhu, Yinglei Zhang, Lijuan Huang, Huiting Liu, Changhao Gao, Bin Liu, Wangxi Yan, Huihui Jian, Jingrui Huang, Zengguang Feng, Jianyong Yu, Tao Zou, Zhigang Li, Zhaosheng National Laboratory of Solid State Microstructures School of Physics Nanjing University Nanjing210093 China Jiangsu Key Laboratory for Nano Technology College of Engineering and Applied Sciences Nanjing University Nanjing210093 China School of Science Jiangsu Ocean University Lianyungang222005 China

Silicon-based photoelectrochemical (PEC) cells offer significant advantages for solar-to-clean fuel conversion but face challenges such as surface recombination and poor stability, necessitating a comprehensive understanding of device failure mechanisms and effective mitigation strategies. Using nickel-decorated n-type silicon (n-Si/Ni) as a model photoelectrode, we demonstrate that surface restructuring during operation initially passivates surface recombination but eventually blocks photogenerated hole transfer, leading to device failure. To mitigate this challenge, an ultrathin (x) interlayer is introduced via atomic layer deposition (ALD). This TaOx layer serves as both a passivating contact and a corrosion-resistant coating. The n-Si/TaOx/Ni electrode achieves an increased photovoltage from 150 to 500 mV during the activation process, and then significantly extends the device lifespan, maintaining over 90% performance for 500 h in 1 M KOH at 1.52 V versus RHE. These results highlight the implementation of amorphous TaOx in enhancing both the efficiency and durability of silicon-based PEC systems, providing a simultaneously passivating and protective strategy for solar-to-fuel conversion technologies under harsh conditions. © 2025 Wiley-VCH GmbH.

关键词： Corrosion resistant coatings

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