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Diametral tensile strength on restorative dental composite: Contrasting results from the addition of PMMA fiber filler

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AIP Conference Proceedings 2020年第1期2219卷

作者： Elin Karlina Ella Ramadhani Veni Takarini Nina Djustiana Biotechnology Study Program Graduate School Universitas Padjadjaran Jl. Raya Bandung-Sumedang KM 21 Jatinangor West Java 45363 Indonesia Nano Technology and Graphene Research Centre Universitas Padjadjaran Jl. Raya Bandung-Sumedang KM 21 Jatinangor West Java 45363 Indonesia Graduate Student Program Faculty of Dentistry Universitas Padjadjaran Jl. Raya Bandung-Sumedang KM 21 Jatinangor West Java 45363 Indonesia Department of Dental Material Science and Technology Faculty of Dentistry Universitas Padjadjaran Jl. Raya Bandung-Sumedang KM 21 Jatinangor West Java 45363 Indonesia

Dental composite as restorative materials is mostly used because of its aesthetics, good adhesive properties, and minimal preparation. However, almost half of the composite restoration failure can be caused by a crack, which is triggered from the use of irregular and angulated silica particles as composite fillers. These also tend to decrease the Diametral Tensile Strength (DTS) value as one of the mechanical properties. This study aims to compare the DTS value of dental composite with and without PMMA fiber. Twenty samples were divided into two groups, dental composite without PMMA fiber filler as the control group (70% silica particle filler) and dental composite with PMMA fiber filler (65% silica particle filler, 5% PMMA fiber filler). The DTS test was carried out using the Universal Testing Machine (Lloyd) with 5.6 N load and 1 mm/minute crosshead speed. Then, the fracture surface of the samples was evaluated using Scanning Electron Microscope (SEM) and Energy Dispersive X-ray Spectroscopy (EDS) using JEOL JED-2300. The result of DTS value on the control group was 38.74±3.05 MPa while the fiber group was 28.39±3.21 MPa, which is supported by SEM observations that revealed the presence of the nanofiber on the fiber group with the percentage of the silica concentration (±30%) on the EDS observations was lower than the control group. So, it can be concluded that the fiber reinforcement has lowered silica concentration, which decreased DTS value than the control group. Further research shall investigate the fiber diameter, phase of crystallization, binding interaction between silica and fiber as filler, and also the optical properties akin to natural tooth appearances on the cervical region.

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The limits of near Field Immersion Microwave Microscopy evaluated by imaging bilayer graphene Moiré patterns

arXiv

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arXiv 2020年

作者： Ohlberg, Douglas A.A. Tami, Diego Gadelha, Andreij C. Neto, Eliel G.S. Santana, Fabiano C. Miranda, Daniel Avelino, Wellington Watanabe, Kenji Taniguchi, Takashi Campos, Leonardo C. Ramirez, Jhonattan C. do Rego, Cássio Gonçalves Jorio, Ado Medeiros-Ribeiro, Gilberto Microscopy Center Universidade Federal de Minas Gerais Belo HorizonteMG31270-901 Brazil Electrical Engineering Graduate Program Universidade Federal de Minas Gerais Belo HorizonteMG31270-901 Brazil Physics Department Universidade Federal de Minas Gerais Belo HorizonteMG31270-901 Brazil Instituto de Física Universidade Federal da Bahia Campus Universitário de Ondina Salvador - BA40170-115 Brazil 1-2-1 Sengen Tsukuba-cityIbaraki305-0047 Japan Department of Electronic Engineering School of Engineering Universidade Federal de Minas Gerais Belo HorizonteMG31270-901 Brazil Technology Innovation Graduate Program Universidade Federal de Minas Gerais Belo HorizonteMG31270-901 Brazil Computer Science Department Universidade Federal de Minas Gerais Belo HorizonteMG31270-901 Brazil

Molecular and atomic imaging required the development of electron and scanning probe microscopies to surpass the physical limits dictated by diffraction [1]. nano-infrared experiments [2] and pico-cavity tip-enhanced Raman spectroscopy imaging later demonstrated that radiation in the visible range [3] can surpass this limit by using scanning probe tips to access the near-field regime [4]. Here we show that ultimate resolution can be obtained by using scanning microwave imaging microscopy to reveal structures with feature sizes down to 1 nm using a radiation of 0.1 m in wavelength. As a test material we use twisted bilayer graphene, which is not only a very important recent topic due to the discovery of correlated electron effects such as superconductivity [5], but also because it provides a sample where we can systematically tune a superstructure Moiré patterńs modulation from below one up to tens of nanometers. By analyzing the tip-sample distance dynamics, we demonstrate that this ultimate 108 probe-to-pattern resolution can be achieved by using liquid immersion microscopy concepts and exquisite force control exerted on nanoscale water menisci. Copyright © 2020, The Authors. All rights reserved.

关键词： Moire fringes

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Metallic-Carbon-nanotube-Removal Tolerant SRAM Cell with 9 Transistors 12

Metallic-Carbon-Nanotube-Removal Tolerant SRAM Cell with 9 T...

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2017 IEEE 12th International Conference on ASIC

作者： Yanan Sun Weifeng He Zhigang Mao Hailong Jiao Volkan Kursun Department of Micro-Nano Electronics Shanghai Jiao Tong University School of Electronic and Computer Engineering Peking University Shenzhen Graduate School Department of Electronic and Computer Engineering The Hong Kong University of Science and Technology

ISBN: (纸本)9781509066261;9781509066254

A high-yield nine carbon nanotube MOSFET(9-CNMOSFET) SRAM cell that can tolerate the removal of metallic carbon nanotubes(m-CNs) is proposed in this paper.A functional yield model of carbon nanotube transistors and memory circuits is developed considering the spatial correlations of CNs in the channel *** yield of the m-CN-removal-tolerant 9-CNMOSFET SRAM array is increased by 21309 x as compared to the previously published memory circuit that does not consider process *** read delay and worst-case write delay of the proposed 9-CN-MOSFET SRAM circuit are reduced by 29.05% and 22.30%,respectively,as compared to the previously published memory circuit in a 16 nm CN-MOSFET technology.

关键词： MOSFET Metallic-Carbon-nanotube-Removal Tolerant SRAM Cell with 9 Transistors

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Study of polysilsesquioxane dielectric for the use of multi-structured redistribution layers in fan-out wafer level packaging applications

Study of polysilsesquioxane dielectric for the use of multi-...

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IEEE Electronics Packaging technology Conference

作者： Changmin Song Sungdong Kim Sarah Eunkyung Kim Graduate school of Nano-IT Design Convergence Seoul National University of Science and Technology Department of Mechanical Design System Engineering Seoul National University of Science and Technology 232 Gongneung-ro Nowon-gu Seoul Korea

ISBN: (纸本)9781538676691;9781538676684

Integrated circuit (IC) technologies have been significantly changed due to the strong demands of high performance, multifunction, low power, small size, and low cost. Furthermore, IC technology paradigms have been shifted to one-chip integration, 3D integration, and multi-function integration. However, since the scaling-down of IC devices has been reached to their physical limitations, several innovative packaging technologies such as 3D packaging, embedded packaging, and fan-out wafer level packaging (FOWLP) are actively studied for high I/O devices. In this study polysilsesquioxane (PSSQ) dielectric materials were investigated for the use of multi-structured redistribution layers in FOWLP applications. Organic-inorganic hybrid dielectric is expected to improve mechanical reliability and thermal stability. In addition, PSSQ has an excellent advantage of simultaneous curing and patterning through UV exposure. A PSSQ solution was spin-coated on 6-inch Si wafer followed by pre-baking and UV exposure. Then the pattern capability of PSSQ dielectric was evaluated by a scanning electron microscope, and the good pattern capability of 2μm lines was obtained. The dielectric constant of cured PSSQ was ranged from 2.0 to 2.4, and the dielectric loss was ranged from 0.0001 to 0.005. It has been demonstrated that PSSQ can be cured by UV exposure alone without a high temperature curing process.

关键词： Curing Dielectric constant Packaging Dielectric losses Wafer scale integration

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Kidney multiome-based genetic scorecard reveals convergent coding and regulatory variants

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science (New York, N.Y.) 2025年第6734期387卷 eadp4753页

作者： Liu, Hongbo Abedini, Amin Ha, Eunji Ma, Ziyuan Sheng, Xin Dumoulin, Bernhard Qiu, Chengxiang Aranyi, Tamas Li, Shen Dittrich, Nicole Chen, Hua-Chang Tao, Ran Tarng, Der-Cherng Hsieh, Feng-Jen Chen, Shih-Ann Yang, Shun-Fa Lee, Mei-Yueh Kwok, Pui-Yan Wu, Jer-Yuarn Chen, Chien-Hsiun Khan, Atlas Limdi, Nita A. Wei, Wei-Qi Walunas, Theresa L. Karlson, Elizabeth W. Kenny, Eimear E. Luo, Yuan Kottyan, Leah Connolly, John J. Jarvik, Gail P. Weng, Chunhua Shang, Ning Cole, Joanne B. Mercader, Josep M. Mandla, Ravi Majarian, Timothy D. Florez, Jose C. Haas, Mary E. Lotta, Luca A. Drivas, Theodore G. Vy, Ha My T Nadkarni, Girish N. Wiley, Laura K. Wilson, Melissa P. Gignoux, Christopher R. Rasheed, Humaira Thomas, Laurent F. Åsvold, Bjørn Olav Brumpton, Ben M. Hallan, Stein I. Hveem, Kristian Zheng, Jie Hellwege, Jacklyn N. Zawistowski, Matthew Zöllner, Sebastian Franceschini, Nora Hu, Hailong Zhou, Jianfu Kiryluk, Krzysztof Ritchie, Marylyn D. Palmer, Matthew Edwards, Todd L. Voight, Benjamin F. Hung, Adriana M. Susztak, Katalin Department of Medicine Renal Electrolyte and Hypertension Division University of Pennsylvania Philadelphia PA United States Institute of Diabetes Obesity and Metabolism University of Pennsylvania Philadelphia PA United States Department of Genetics University of Pennsylvania Philadelphia PA United States Penn-CHOP Kidney Innovation Center University of Pennsylvania Philadelphia PA United States Liangzhu Laboratory Zhejiang University 1369 West Wenyi Road Hangzhou Zhejiang China Department of Nephrology Children' Hospital Zhejiang University School of Medicine National Clinical Research Center for Child Health Hangzhou Zhejiang China Institute of Molecular Life Sciences HUN-REN Research Center for Natural Sciences Budapest Hungary Department of Molecular Biology Semmelweis University Budapest Hungary Department of Medicine Federal University of São Paulo São Paulo Brazil Department of Biostatistics Vanderbilt University Medical Center Nashville TN United States Vanderbilt Genetics Institute Vanderbilt University Medical Center Nashville TN United States Institute of Clinical Medicine School of Medicine National Yang Ming Chiao Tung University ROC Taipei Taiwan Division of Nephrology Department of Medicine Taipei Veterans General Hospital ROC Taipei Taiwan Institute of Biomedical Sciences Academia Sinica ROC Taipei Taiwan Cardiovascular Center Taichung Veterans General Hospital Taichung Taiwan ROC National Chung Hsing University Taichung Taiwan ROC Heart Rhythm Center Division of Cardiology Department of Medicine Taipei Veterans General Hospital ROC Taipei Taiwan Department of Internal Medicine College of Medicine National Yang Ming Chiao Tung University ROC Taipei Taiwan Institute of Medicine Chung Shan Medical University Taichung Taiwan ROC Department of Medical Research Chung Shan Medical University Hospital Taichung Taiwan ROC Division of Endocrinology and Metabolism Department of Internal Medicine Kaohsiung Medical Universit

Kidney dysfunction is a major cause of mortality, but its genetic architecture remains elusive. In this study, we conducted a multiancestry genome-wide association study in 2.2 million individuals and identified 1026 (97 previously unknown) independent loci. Ancestry-specific analysis indicated an attenuation of newly identified signals on common variants in European ancestry populations and the power of population diversity for further discoveries. We defined genotype effects on allele-specific gene expression and regulatory circuitries in more than 700 human kidneys and 237,000 cells. We found 1363 coding variants disrupting 782 genes, with 601 genes also targeted by regulatory variants and convergence in 161 genes. Integrating 32 types of genetic information, we present the "Kidney Disease Genetic Scorecard" for prioritizing potentially causal genes, cell types, and druggable targets for kidney disease.

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Correction to: Dietary intervention using (1,3)/(1,6)-β-glucan, a fungus-derived soluble prebiotic ameliorates high-fat diet-induced metabolic distress and alters beneficially the gut microbiota in mice model

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European journal of nutrition 2021年第4期60卷 2273页

作者： Karthika Muthuramalingam Vineet Singh Changmin Choi Seung In Choi Young Mee Kim Tatsuya Unno Moonjae Cho Department of Biochemistry School of Medicine Jeju National University Jeju 63243 Republic of Korea. Faculty of Biotechnology School of Life Sciences SARI Jeju National University Jeju 63243 Republic of Korea. Department of Pharmaceutical Research Institute Quegen Biotech Co. Ltd Seoul 429931 Republic of Korea. Faculty of Biotechnology School of Life Sciences SARI Jeju National University Jeju 63243 Republic of Korea. tatsu@jejunu.ac.kr. Subtropical/Tropical Organism Gene Bank Jeju National University Jeju 63243 Republic of Korea. tatsu@jejunu.ac.kr. Department of Biochemistry School of Medicine Jeju National University Jeju 63243 Republic of Korea. moonjcho@jejunu.ac.kr. Institute of Medical Science Jeju National University Jeju 63241 Republic of Korea. moonjcho@jejunu.ac.kr. Interdisciplinary Graduate Program in Advanced Convergence Technology & Science Jeju National University Jeju 63241 Republic of Korea. moonjcho@jejunu.ac.kr.

A correction to this paper has been published: https://***/10.1007/s00394-021-02537-9

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Ultrasound-assisted synthesis of adsorbents from groundwater treatment residuals for hexavalent chromium removal from aqueous solutions

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Groundwater for Sustainable Development 2017年 5卷 253-260页

作者： Kan, Chi-Chuan Sumalinog, Mario Jose R. Rivera, Kim Katrina P. Arazo, Renato O. de Luna, Mark Daniel G. Institute of Hot Spring Industry Chia-Nan University of Pharmacy and Science Tainan71710 Taiwan Environmental Engineering Program National Graduate School of Engineering University of the Philippines Diliman Quezon City1101 Philippines Department of Chemical Engineering University of the Philippines Diliman Quezon City1101 Philippines College of Engineering and Technology University of Science and Technology of Southern Philippines Claveria9004 Philippines

Groundwater treatment residuals are rich in nano-sized metal oxides which have the potential to remove various water contaminants. In this study, hexavalent chromium adsorbents were synthesized from the residuals of a 30,000 m3 d-1 groundwater treatment plant in Taiwan. The effects of acid type and ratio, acid concentration, ultrasonication time, and heating duration on adsorption capacity were examined. Adsorbents synthesized using dual-acid solutions yielded lower adsorption capacities compared to those which used pure acid solutions. Adsorption capacity decreased with higher ultrasonication time and heating duration. Chromium removal was improved with higher ionic strength and lower pH of the solution. Results showed high correlation between experimental data and the Freundlich isotherm (R2 = 0.9607) and the pseudo-second order kinetic model (R2 = 0.9740) suggesting that the dominant mechanism in the adsorption process is chemisorption. The involvement of Fe and Mn species during chromium adsorption was confirmed by the results of energy dispersive X-ray spectroscopy and Fourier transform infrared (FTIR) spectroscopy analyses. © 2017

关键词： Adsorption

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Cover Feature: Ultrafine Sn nanoparticles Anchored on Nitrogen- and Phosphorus-Doped Hollow Carbon Frameworks for Lithium-Ion Batteries (ChemElectroChem 15/2018)

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ChemElectroChem 2018年第15期5卷 2053-2053页

作者： Jiseop Oh Jeongyeon Lee Youngmoo Jeon Jong Min Kim Kwang-dong Seong Taejin Hwang Seungman Park Prof. Yuanzhe Piao Program in Nano Science and Technology Graduate School of Convergence Science and Technology Seoul National University Seoul 151-744 Republic of Korea Advanced Institutes of Convergence Technology 864-1 lui-dong Yeongtong-gu Suwon-si Gyeonggi-do 443-270 Republic of Korea

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Rational Design of Safer Inorganic nanoparticles via Mechanistic Modeling-Informed Machine Learning

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ACS nano 2025年第23期19卷 2025 Jun 3页

作者： Joseph Cave Anne Christiono Carmine Schiavone Henry J Pownall Vittorio Cristini Daniela I Staquicini Renata Pasqualini Wadih Arap C Jeffrey Brinker Matthew Campen Zhihui Wang Hien Van Nguyen Achraf Noureddine Prashant Dogra Mathematics in Medicine Program Department of Medicine Houston Methodist Research Institute Houston Texas 77030 United States. Physiology Biophysics and Systems Biology Program Graduate School of Medical Sciences Weill Cornell Medicine New York New York 10065 United States. Department of Electrical Engineering and Computer Science Massachusetts Institute of Technology Cambridge Massachusetts 02139 United States. Department of Chemical Materials and Industrial Production Engineering University of Naples Federico II Naples 80138 Italy. Department of Medicine Houston Methodist Houston Texas 77030 United States. Department of Medicine Weill Cornell Medicine New York New York 10065 United States. Neal Cancer Center Houston Methodist Research Institute Houston Texas 77030 United States. Department of Imaging Physics University of Texas M.D. Anderson Cancer Center Houston Texas 77030 United States. Rutgers Cancer Institute Newark New Jersey 08901 United States. Division of Cancer Biology Department of Radiation Oncology Rutgers New Jersey Medical School Newark New Jersey 08901 United States. Division of Hematology/Oncology Department of Medicine Rutgers New Jersey Medical School Newark New Jersey 08901 United States. Department of Chemical and Biological Engineering University of New Mexico Albuquerque New Mexico 87106 United States. College of Pharmacy University of New Mexico Albuquerque New Mexico 87106 United States. Department of Physiology and Biophysics Weill Cornell Medical College New York New York 10065 United States. Department of Electrical and Computer Engineering University of Houston Houston Texas 77204 United States.

The safety of inorganic nanoparticles (NPs) remains a critical challenge for their clinical translation. To address this, we developed a machine learning (ML) framework that predicts NP toxicity both and , leveraging physicochemical properties and experimental conditions. A curated cytotoxicity dataset was used to train and validate binary classification models, with top-performing models undergoing explainability analysis to identify key determinants of toxicity and establish structure-toxicity relationships. External testing with diverse inorganic NPs validated the predictive accuracy of the framework for settings. To enable organ-specific toxicity predictions , we integrated a physiologically based pharmacokinetic (PBPK) model into the ML pipeline to quantify NP exposure across organs. Retraining the ML models with PBPK-derived exposure metrics yielded robust predictions of organ-specific nanotoxicity, further validating the framework. This PBPK-informed ML approach can thus serve as a potential alternative approach to streamline NP safety assessment, enabling the rational design of safer NPs and expediting their clinical translation.

关键词： PBPK artificial intelligence cytotoxicity machine learning mathematical modeling nanoparticle nanotoxicity

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Effect of ZnO Electrodeposited on Carbon Film and Decorated with Metal nanoparticles for Solar Hydrogen Production

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Journal of Materials science & technology 2016年第10期32卷 1059-1065页

作者： Young Kwang Kim Hye-Jin Seo Soonhyun Kim Sung-Ho Hwang Hyunwoong Park Sang Kyoo Lim Division of Nano and Energy Convergence Research Daegu Gyeongbuk Institute of Science and Technology (DGIST) School of Energy Engineering Kyungpook National University

In this study, we prepared horn-like ZnO structures on carbon films（ZnO/CF） by electrodeposition and decorated the ZnO horns with different metals（Ag, Au, and Pt） via photodeposition（M-ZnO/CF）. Using M-ZnO/CF as photocatalysts, we examined ways to enhance solar hydrogen production from various points of view, such as modifying the intrinsic physical properties and thermodynamics of the materials, and varying the chemical environment during M-ZnO/CF fabrication. In particular, we focused on the effects of the carbon film and metals in M-ZnO/CF hybrid photocatalysts on solar hydrogen production. The type of metal nanoparticles is an important factor in solar hydrogen production because the deposition rate and electrical conductivity of each metal affect the proton-water reduction ability.

关键词： Solar hydrogen production ZnO horn Carbon film Metal nanoparticle Electrodeposition

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