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International Conference on Applied System Innovation (ICASI)

作者： Yun-Qi Li Hsuan-Jung Chen Hsi-Wen Yang Chih-Yuan Chen Shao-Fu Chang Ssu-Ying Chen Chien-Chon Chen College of Engineering and Science Ph.D. Program in Materials and Chemical Engineering National United University Miaoli Taiwan Department of Chemistry Michigan State University MI USA Department of Materials Engineering National United University Miaoli Taiwan Graduate Institute of Intellectual Property National Taipei University of Technology Taiwan Department of Energy Engineering National United University Miaoli Taiwan

ISBN: (数字)9798350394924

ISBN: (纸本)9798350394931

For how to store and transport hydrogen, the first thought is to store hydrogen directly in the cylinder. However, this method is not desirable, because generally at least 700 atm high pressure, the hydrogen contained in the cylinder to be useful. Therefore it is very unsafe at such high pressures. In This paper, we design and production of a new generation of solid-state hydrogen storage and discharge container. The goal of “development of solid-state hydrogen storage technology” is to break through the bottlenecks of hydrogen storage technology safety, hydrogen storage density, high-efficiency hydrogen absorption and release, transportation safety, and engineering practice.

关键词： Technological innovation Hydrogen storage Temperature Surface resistance Hydrogen Transportation Production

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A comparative study of the structural and optoelectronic properties of Al- and Ga-doped ZnO films deposited by atmospheric pressure plasma jet

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Journal of Alloys and Compounds 2025年 1031卷

作者： Chou, Chih-Yun Chiu, Po-Han Chao, Yin-Chun Yen, Hung-Wei Juang, Jia-Yang Program in Nanoengineering and Nanoscience Graduate School of Advanced Technology National Taiwan University Taipei106319 Taiwan Department of Materials Science and Engineering National Taiwan University Taipei106319 Taiwan Department of Mechanical Engineering National Taiwan University Taipei106319 Taiwan

The high cost of gallium has driven interest in aluminum-doped zinc oxide (AZO) as a cost-effective alternative to gallium-doped zinc oxide (GZO). While prior studies have primarily focused on sputtering methods to compare AZO and GZO, research on non-sputtering techniques remains limited. Our previous works demonstrated favorable optoelectronic properties in GZO films deposited via atmospheric pressure plasma jet (APPJ);however, APPJ-deposited AZO has yet to be explored. In this study, we compare AZO and GZO thin films fabricated by APPJ under ambient conditions. We find that the deposition rate of AZO is approximately twice that of GZO under the same processing parameters, due to differences in droplet size from the ultrasonic generator. By adjusting precursor delivery and working distance (the nozzle-to-substrate gap), we can tune film thickness, morphology, and optoelectronic properties, showcasing APPJ's versatility over sputtering. Despite similar precursor concentrations and film thickness, AZO films exhibit lower carrier concentration (∼1 ×1020 cm–3) and mobility (∼7.5 cm2/Vs) than GZO (∼8 ×1020 cm–3 and ∼15 cm²/Vs), attributed to reduced aluminum incorporation (∼0.4 at% vs. ∼2.2 at% in GZO). Reducing the working distance from 2 mm to 1.5 mm improves both films’ structural integrity and optoelectronic performance (figure of merit increases by 140 % for GZO and 100 % for AZO). However, AZO remains inferior to GZO, highlighting the need for further optimization. © 2025 Elsevier B.V.

关键词： Transparent conducting oxides

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Fast reconstruction and optical-sectioning three-dimensional structured illumination microscopy

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The Innovation 2025年第3期6卷 50-58,49页

作者： Ruijie Cao Yaning Li Wenyi Wang Yunzhe Fu Xiaoyu Bu Dilizhatai Saimi Jing Sun Xichuan Ge Shan Jiang Yuru Pei Baoxiang Gao Zhixing Chen Meiqi Li Peng Xi Department of Biomedical Engineering College of Future TechnologyPeking UniversityBeijing 100871China National Biomedical Imaging Center College of Future TechnologyPeking UniversityBeijing 100871China China Academy of Space Technology Beijing Institute of Space Mechanics and ElectricityBeijing 100094China Airy Technologies Co. Ltd.Beijing 100081China Key Laboratory of Analytical Science and Technology of Hebei Province College of Chemistry and Materials ScienceHebei UniversityBaoding 071002China College of Future Technology Institute of Molecular MedicineNational Biomedical Imaging CenterBeijing Key Laboratory of Cardiometabolic Molecular MedicinePeking UniversityBeijing 100871China Institute of Biomedical Engineering Beijing Institute of Collaborative InnovationBeijingChina Key Laboratory of Machine Perception(MOE) Department of Machine IntelligencePeking UniversityBeijing 100871China Peking-Tsinghua Center for Life Science Academy for Advanced Interdisciplinary StudiesPeking UniversityBeijing 100871China School of Life Sciences Peking UniversityBeijing 100871China

Three-dimensional structured illumination microscopy(3DSIM)is a popular method for observing subcellular/cellular structures or animal/plant tissues with gentle phototoxicity and 3D ***,its time-consuming reconstruction process poses challenges for high-throughput imaging and real-time ***,traditional 3DSIM typically requires more than six z layers for successful reconstruction and is susceptible to defocused *** poses a great gap between single-layer 2DSIM and 6-layer 3DSIM,and limits the observation of thicker *** address these limitations,we developed FO-3DSIM,a novel method that integrates spatial-domain reconstruction with optical-sectioning ***-3DSIM enhances reconstruction speed by up to 855.7 times with superior performance with limited z layers and under high defocused *** retains the high-fidelity,low-photon reconstruction capabilities of our previously proposed *** fast reconstruction and optical sectioning,we achieved large field-of-view(FOV)3D super-resolution imaging of mouse kidney actin,covering a region of 0.453 mm×0.453 mm×2.75μm within 23 min of acquisition and 13 min of *** real-time performance was demonstrated in live actin imaging with *** approach reduces photodamage through limited z layer reconstruction,allowing the observation of ER tubes with just three *** anticipate that FO-3DSIM will pave the way for near real-time,large FOV 6D imaging,encompassing xyz super-resolution,multi-color,long-term,and polarization imaging with less photodamage,removed defocused backgrounds,and reduced reconstruction time.

关键词： gentle phototoxicity phototoxicity high throughput imaging fast reconstruction real time observation optical sectioning three dimensional structured illumination microscopy reconstruction process

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Thickness-Dependent Optoelectronic Properties of Titanium Carbide Mxene

SSRN

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SSRN 2023年

作者： Wang, Peizhi Tang, Jun Yang, Yi Guo, Jiaxin Hu, Bihua Cui, Shuyu Wang, Xingzhu Xu, Baomin Department of Materials Science and Engineering Southern University of Science and Technology Shenzhen518055 China Colledge of New Materials and New Energies Shenzhen Technology University Shenzhen518118 China SUSTech Academy for Advanced Interdisciplinary Studies Southern University of Science and Technology Shenzhen518055 China

Due to its tunable interlayer chemistry, MXene shows great potential in various sensors, however, the optoelectronic properties of MXene are greatly hindered by the slow photoresponse of the intercalation chemistry. In this work, Ti3C2TX monolayer and multilayer films are self-assembled so that the embedded H2O content can be controlled by tuning the stacked layers. Therefore, the photoelectric properties of Ti3C2TX are highly related to the film thickness, resulting in opposite changes in resistance under laser irradiation. In addition, monolayer films with few intercalators are more suitable for optoelectronic applications, and their resistance recovery is much faster than multilayer films. Furthermore, this work also helps explore the critical role of film thickness in the MXene-based optoelectronic sensors. © 2023, The Authors. All rights reserved.

关键词： Multilayer films

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The Effects of Calcium Carbonate on Sodium Metasilicate-Activated Metakaolin-Based Geopolymer Pastes

SSRN

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SSRN 2024年

作者： Ren, Jie Cansu, B. Acarturk Dowdy, Nicolas D. Srubar, Wil V. Department of Civil Environmental and Architectural Engineering University of Colorado Boulder 1111 Engineering Drive ECOT 441 UCB 428 BoulderCO80309 United States Materials Science and Engineering Program University of Colorado Boulder 4001 Discovery Drive BoulderCO80303 United States

The influence of calcium carbonate (CaCO3) on the alkali-activation kinetics, microstructure, and compressive strength of alkali-activated metakaolin (MK) geopolymer was investigated. Experimental results showed that replacing 10-50% of MK with CaCO3 particles delayed the acceleration stage of alkali-activation regardless of replacement amount. However, 10% CaCO3 increased the overall degree of reaction and yielded pastes with similar 14- and 28-day compressive strengths compared to the control without CaCO3 addition. In comparison, 50% CaCO3 replacement led to a lower overall degree of reaction and compressive strengths through 28 days of curing. Experimental evidence substantiates that N-A-S-H gel forms in samples containing 0% and 10% CaCO3, while N-(C)-A-S-H gel and/or C-(N)-A-S-H are also present in the binding matrix near CaCO3 particles in samples with higher CaCO3 contents. While CaCO3 particles were primarily composed of calcite, vaterite was also evident given higher CaCO3 contents, suggesting that the CaCO3 particles were reactive during the alkali-activation. © 2024, The Authors. All rights reserved.

关键词： Calcium carbonate

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A preliminary data fusion study to assess the feasibility of Foundation Process-Property Models in Laser Powder Bed Fusion

arXiv

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arXiv 2025年

作者： Vendrell-Gallart, Oriol Negarandeh, Nima Foumani, Zahra Zanjani Amiri, Mahsa Valdevit, Lorenzo Bostanabad, Ramin Department of Mechanical and Aerospace Engineering University of California IrvineCA92697 United States Materials and Manufacturing Technology Program University of California IrvineCA92697 United States Department of Materials Science and Engineering University of California IrvineCA92697 United States Department of Civil and Environmental Engineering University of California IrvineCA92697 United States

Foundation models are at the forefront of an increasing number of critical applications. In regards to technologies such as additive manufacturing (AM), these models have the potential to dramatically accelerate process optimization and, in turn, design of next generation materials. A major challenge that impedes the construction of foundation process-property models is data scarcity. To understand the impact of this challenge, and since foundation models rely on data fusion, in this work we conduct controlled experiments where we focus on the transferability of information across different material systems and properties. More specifically, we generate experimental datasets from 17-4 PH and 316L stainless steels (SSs) in Laser Powder Bed Fusion (LPBF) where we measure the effect of five process parameters on porosity and hardness. We then leverage Gaussian processes (GPs) for process-property modeling in various configurations to test if knowledge about one material system or property can be leveraged to build more accurate machine learning models for other material systems or properties. Through extensive cross-validation studies and probing the GPs’ interpretable hyperparameters, we study the intricate relation among data size and dimensionality, complexity of the process-property relations, noise, and characteristics of machine learning models. Our findings highlight the need for structured learning approaches that incorporate domain knowledge in building foundation process-property models rather than relying on uninformed data fusion in data-limited applications. © 2025, CC BY.

关键词： Data fusion

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Theoretical insights into metal-doped nanostructured hematite catalyst supported by graphene underlayer for photoelectrochemical water splitting applications

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Discover Catalysis 2025年第1期2卷 1-27页

作者： Bhattacharya, Labanya Caspary Toroker, Maytal Department of Materials Science and Engineering Technion-Israel Institute of Technology Haifa Israel The Nancy and Stephen Grand Technion Energy Program Technion-Israel Institute of Technology Haifa Israel Resnick Sustainability Center for Catalysis Technion-Israel Institute of Technology Haifa Israel

Catalysis is pivotal in the production of green hydrogen through water splitting to meet the goal of carbon neutrality. Hematite (Fe2O3) is an excellent catalyst and benchmarked photoanode materials in photoelectrochemical water splitting. Among the metal dopants, aluminum (Al) substitution in hematite is found intrinsically. In this study, we investigate Al doped nanostructured hematite as a photoanode material and a catalyst in water oxidation mechanism using density functional theory+ U methodology. We have found that Al doping in hematite monolayer leads to unfavorable increase in theoretical overpotential value by 0.19 V. To improve the efficiency of oxygen evolution reaction, we consider heterostructuring of Al doped nanostructured hematite with pristine graphene and nitrogen (N) doped graphene as an underlayer material. Nitrogen doped graphene underlayer leads to the lowest overpotential value of 0.54 V compared to Al doped hematite catalyst (0.96 V) and graphene-Al doped hematite catalyst (0.63 V). The work function is notably reduced after nitrogen doping by 1.41 eV and 1.12 eV as compared to graphene-Al doped hematite and Al doped hematite, respectively. Charge density difference and Bader charge analysis confirm that nitrogen doped graphene underlayer induces delocalized charge density and lowers the activity of the surface states in the *O intermediate. Nitrogen doped graphene-Al doped hematite heterostructure has nearly zero band gap and has the highest cumulative probability of charge transport at photoanode’s surface. Our theoretical study provides mechanistic insights into improving the catalytic efficiency of Al doped nanostructured hematite by heterostructuring with pristine and N doped graphene.

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Optimization of Printing Parameters for Printing of Ordinary Portland Cement using a Custom-made 3D Printer 21

Optimization of Printing Parameters for Printing of Ordinary...

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21st International Union of materials Research Societies International Conference in Asia, IUMRS-ICA 2021

作者： Chaiyotha, D. Pinitsoontorn, S. Chindaprasirt, P. Payakaniti, P. Materials Science and Nanotechnology Program Department of Physics Faculty of Science Khon Kaen University Khon Kaen40002 Thailand NANOTEC -KKU RNN on Nanomaterials Research and Innovation for Energy Khon Kaen University Khon Kaen40002 Thailand Sustainable Infrastructure Research and Development Center Department of Civil Engineering Faculty of Engineering Khon Kaen University Khon Kaen40002 Thailand

3D printing techniques have recently received a lot of attention as a new technique for forming construction materials, due to benefits over the traditional cast. In this research, ordinary Portland cement (OPC) paste was formed using a 3D extruder. Optimized mixture and printing parameters were determined. Compressive strengths of the printed and the traditionally casted OPC paste were measured after the specimens were cured in saturated limewater for 7, 14 and 28 days, respectively. The result led to the conclusion that the most suitable mixture for printing was achieved at the water to cement ratio of 0.35 with water reducing and retarding admixture added. The optimum printing parameters were the printing speed of 60 mm/min and the feed rate of 120 ml/s. Compressive strength of the 5 x 5 x 5 cm3 hollowed and filled cubic printed specimens, were compared with casted cement paste. The strengths of both the printed and the casted specimens were higher with longer curing durations. The highest levels of strength were achieved at 12.36 MPa on the printed specimens and 80.88 MPa when testing the casted samples. © Published under licence by IOP Publishing Ltd.

关键词： 3D printers

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Versatile Organic Electrochemical Transistors with Self-Assembled Coronene Nanofiber Arrays for the Isolation and Detection of Circulating Tumor Cells and Enhanced Secretion of Extracellular Vesicles

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ACS applied materials & interfaces 2025年第23期17卷 2025 May 30页

作者： Edgar Daniel Quiñones Jiashing Yu Rou-Zhen Liu Yi-Shiuan Li Yu-Chuan Lu Yu-Sheng Hsiao Department of Materials Science and Engineering National Taiwan University of Science and Technology Taipei 106335 Taiwan. Taiwan International Graduate Program Sustainable Chemical Science & Technology Academia Sinica Institute of Chemistry Taipei 115 Taiwan. Department of Chemical Engineering National Taiwan University Taipei 10617 Taiwan. Department of Materials Engineering Ming Chi University of Technology New Taipei City 24301 Taiwan. Department of Surgical Oncology National Taiwan University Cancer Center National Taiwan University College of Medicine Taipei 10672 Taiwan. Department of Urology National Taiwan University Hospital Taipei 100225 Taiwan. Energy and Sustainability Tech Graduate Institute National Taiwan University of Science and Technology Taipei 106335 Taiwan.

The integration of organic bioelectronic interfaces has opened new avenues for merging biological systems with electronics, offering transformative solutions to challenges in both fields. In this study, we present a novel hybrid organic electrochemical transistor (OECT) featuring self-assembled three-dimensional (3D) nanofiber arrays (NFAs) of small-molecule semiconductors grown on poly(3,4-ethylenedioxythiophene):polystyrenesulfonate active-layer channels. The hybrid OECT was further evaluated for its potential to capture, recover, and biosense circulating tumor cells (CTCs), as well as to enhance extracellular vesicle (EV) secretion through electrical stimulation (ES). Using template-free self-assembly via standard thermal evaporation, out-of-plane coronene (CR)-based NFAs were fabricated and surface-engineered with 1-pyrenebutyric acid through π-π interactions, enabling bioaffinity coatings on OECTs for advanced biological applications. The device demonstrated efficient CTC isolation, achieving an isolation rate exceeding 90% for MCF-7 breast cancer cells spiked into THP-1 monocytic cells (10 cells mL), with minimal nonspecific binding by incorporating a specific antibody-coated CR-based NFA layer. Moreover, over 80% of the captured CTCs were released from CR-based NFAs during cyclic voltammetry sweeps in phosphate-buffered saline. The device also enhanced EV secretion by incorporating a collagen-coated CR-based NFA layer, which supported cell attachment and proliferation under sustained ES at 20 V, 0.5 Hz, with 5 ms pulses for 24-72 h periods. EV production increased by approximately 12.4-fold in MCF-7 cells and 8.0-fold in immortalized bone marrow stromal cells without significantly altering the EV size or requiring additional cellular modifications. This dual-functionality platform, enabled by a surface-engineered 3D-hybrid OECT, is a powerful tool for selective CTC isolation, liquid biopsy purification, and enhanced EV production. This versatility highlights

关键词： bioelectronic interfaces (BEIs) circulating tumor cells (CTCs) extracellular vesicle (EV) nanofiber arrays (NFAs) organic electrochemical transistor (OECT) poly(3,4-ethylenedioxythiophene):polystyrenesulfonate (PEDOT:PSS)

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Additive manufacturing of poly (lactic acid)/hydroxyapatite/carbon nanotubes biocomposites for fibroblast cell proliferation

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Scientific Reports 2023年第1期13卷 1-20页

作者： da Luz Belo, Francilene Vasconcelos, Esleane Vilela Pinheiro, Miriane Alexandrino da Cruz Barbosa Nascimento, Damares Passos, Marcele Fonseca da Silva, Alisson Clay Rios dos Reis, Marcos Allan Leite Monteiro, Sérgio Neves Brígida, Rebecca Thereza Silva Santa Rodrigues, Ana Paula Drummond Candido, Verônica Scarpini Engineering of Natural Resources of the Amazon Program Federal University of Pará–UFPA Belém Brazil Materials Science and Engineering Program Federal University of Pará-UFPA Belém Brazil Materials Science Program Military Institute of Engineering—IME Rio de Janeiro Brazil Electron Microscopy Laboratory Evandro Chagas Institute-IEC Belém Brazil

Bone tissue is one of the most important in the human body. In this study, scaffolds of poly (lactic acid) PLA reinforced with hydroxyapatite (HA) and carbon nanotubes (CNT) were manufactured, evaluating their mechanical and biological properties. HA was synthesized by wet method and characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and scanning electron microscopy (SEM). The scaffolds were produced using additive manufacturing and characterized by optical microscopy, SEM, thermogravimetric analysis (TGA), Raman spectroscopy and biological tests. The SEM results showed that the PLA surface was affected by the incorporation of CNT. TG showed that the incorporation of HA into the polymer matrix compromised the thermal stability of PLA. On the other hand, the incorporation of CNT to the polymer and the impregnation with HA on the surface by thermal effect increased the stability of PLA/CNT scaffolds. Raman spectra indicated that HA impregnation on the surface did not modify the polymer or the ceramic. In the compression tests, PLA and PLA/CNT scaffolds displayed the best compressive strength. In the biological tests, more than 85% of the cells remained viable after 48 h of incubation with all tested scaffolds and groups with CNT in the composition disclosing the best results. © 2023, The Author(s).

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