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An analysis on the relationship and genetic diversity of Indonesian cassava accessions (Manihot esculenta)

AIP Conference Proceedings 2023年第1期2583卷

作者： Sholeh Avivi Fajar Firmansyah Bella Rhea Lavifa Sanjaya Didik Pudji Restanto 1Center for Development of Advanced Science and Technology (CDAST) University of Jember. Jl. Kalimantan No 37 Jember 68121 East Java Indonesia. Tel./Fax. +62-812-1751-700 2Post Graduate Program of Agronomy University of Jember. Jl. Kalimantan No 37 Jember 68121 East Java Indonesia. 3The Center of Excellence on Crop Industrial Biotechnology University of Jember. Jl. Kalimantan No 37 Jember 68121 East Java Indonesia.

The genetic improvement of Indonesian cassava is limited by the lack of knowledge about genetic diversity in circulating cassava clones. Good breeding results require information on the Relationship between the clones used. This study aims to study the genetic relationship between several Jember cassava clones through genotype and phenotype approaches. The genetic relationship between 22 cassava accessions was analyzed using RAPD and phenotypically using the key of determination. The genetic Relationship dendrogram results were obtained from 87 DNA bands and 18 phenotypic characters. The genetic relationships were analyzed using similarity coefficients and phenotypic genetic distances. Relationship analysis of 22 cassava accessions based on phenotypic characters yielded similarity coefficients ranging from 0.39 to 0.83. Relationship analysis of 22 cassava accessions based on RAPD markers, resulted in a similarity coefficient of 0.5-1.0, or 55 to 100%.

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Correction to: N‑doped carbon nanospheres as selective fluorescent probes for mercury detection in contaminated aqueous media: chemistry, fluorescence probing, cell line patterning, and liver tissue interaction

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Environmental science and pollution research international 2025年第20期32卷 2025 May 6页

作者： Soheil Sojdeh Ali Banitalebi Dehkordi Alireza Badiei Ali Zarrabi Pooyan Makvandi Milad Ashrafizadeh Mohammad Reza Saeb Eder C Lima Mohammad Rabiee Mohsen Asadnia Thomas J Webster Navid Rabiee School of Chemistry College of Science University of Tehran P.O. Box Tehran 14155‑6455 Iran. Department of Biomedical Engineering Faculty of Engineering and Natural Sciences Istinye University Istanbul Turkey. Centre for Materials Interfaces Istituto Italiano Di Tecnologia 56025 Pisa Italy. Sabanci University Orta Mahalle Üniversite Caddesi No. 27 Orhanlı Tuzla 34956 Istanbul Turkey. Department of Polymer Technology Gdańsk University of Technology G. Narutowicza 11/12 80‑233 Gdańsk Poland. Institute of Chemistry Federal University of Rio Grande Do Sul (UFRGS) Av. Bento Goncalves 9500 Postal Box 15003 Porto Alegre ZIP 91501‑970 Brazil. profederlima@***. Biomaterials Group Department of Biomedical Engineering Amirkabir University of Technology Tehran Iran. School of Engineering Macquarie University New South Wales Sydney 2109 Australia. School of Health Sciences and Biomedical Engineering Hebei University of Technology Tijian 300130 China. School of Engineering Saveetha University Chennai 602105 India. Interdisciplinary Laboratory for Advanced Materials (LIMAV) Materials Science and Engineering Graduate Program Federal University of Piaui Teresina 64049‑550 Brazil. Centre for Molecular Medicine and Innovative Therapeutics Murdoch University Perth 6150 Australia.

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Stimuli-responsive smart nanomaterials for theranostics of urological cancers

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Coordination Chemistry Reviews 2025年 539卷

作者： Xu, Yi Moradialvand, Madineh Sala, Francesca Della Zare, Ehsan Nazarzadeh Hushmandi, Kiavash Rahimmanesh, Ilnaz Borzacchiello, Assunta Iravani, Siavash Zare, Iman Shin, Jungah Yoon, Juyoung Kang, Heemin Makvandi, Pooyan Department of Urology Department of Science & Technology Nano Medical Innovation & Collaboration Group (NMICG) The Quzhou Affiliated Hospital of Wenzhou Medical University Quzhou People's Hospital Quzhou 324000 China The Quzhou Affiliated Hospital of Wenzhou Medical University Quzhou People's Hospital Quzhou 324000 China Center for Theoretical Physics Khazar University 41 Mehseti Street Baku AZ1096 Azerbaijan Institute of Polymers Composites and Biomaterials National Research Council (IPCB-CNR) Viale J.F. Kennedy 54 Naples 80125 Italy School of Chemistry Damghan University Damghan 36716-45667 Iran Nephrology and Urology Research Center Clinical Sciences Institute Baqiyatallah University of Medical Sciences Tehran Iran Applied Physiology Research Center Cardiovascular Research Institute Isfahan University of Medical Sciences Isfahan Iran W Nazar ST Boostan Ave Isfahan Iran Research and Development Department Sina Medical Biochemistry Technologies Co. Ltd. Shiraz *** Iran Department of Materials Science and Engineering Korea University Seoul 02841 South Korea Department of Chemistry and Nanoscience Ewha Womans University Seoul 03760 South Korea Graduate Program in Innovative Biomaterials Convergence Ewha Womans University Seoul 03760 South Korea College of Medicine Korea University Seoul 02841 South Korea

Urological cancers, including prostate, bladder, and kidney cancers, contribute significantly to the global burden of cancer-related mortality. While numerous reviews have addressed these cancers individually, this is the first comprehensive review that exclusively focuses specifically on nanotheranostics as a transformative approach for urological cancer. The distinct tumor microenvironments (TMEs) associated with these cancers pose both challenges and opportunities for precise nanotherapeutic interventions. This review provides a thorough examination of current advancements in nanotechnology-based diagnostics and therapeutics tailored to urological cancers. For each primary urological cancer type, we outline key strategies for leveraging nanotheranostics in the detection and treatment of tumors. Furthermore, we address the persisting challenges in enhancing tumor specificity and treatment efficacy. In essence, nanotheranostics offer a promising therapeutic avenue for urological cancers by enabling targeted drug delivery and controlled release of therapeutics within the tumor microenvironment. The objective of this pioneering review is to underscore recent developments and future prospects in utilizing nanotechnology to meet the unmet needs in the diagnosis and treatment of urological cancers. © 2025 Elsevier B.V.

关键词： Bladder Kidney cancers Nanocarriers Nanomaterials Prostate tumor Urological cancers

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EMPRESS. X. Spatially resolved mass-metallicity relation in extremely metal-poor galaxies: Evidence of episodic star-formation fueled by a metal-poor gas infall

arXiv

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arXiv 2024年

作者： Nakajima, Kimihiko Ouchi, Masami Isobe, Yuki Xu, Yi Ozaki, Shinobu Nagao, Tohru Inoue, Akio K. Rauch, Michael Kusakabe, Haruka Onodera, Masato Nishigaki, Moka Ono, Yoshiaki Sugahara, Yuma Hattori, Takashi Hirai, Yutaka Hashimoto, Takuya Kim, Ji Hoon Moriya, Takashi J. Yanagisawa, Hiroto Aoyama, Shohei Fujimoto, Seiji Fukushima, Hajime Fukushima, Keita Harikane, Yuichi Hatano, Shun Hayashi, Kohei Ishigaki, Tsuyoshi Kawasaki, Masahiro Kojima, Takashi Komiyama, Yutaka Koyama, Shuhei Koyama, Yusei Lee, Chien-Hsiu Matsumoto, Akinori Mawatari, Ken Motohara, Kentaro Murai, Kai Nagamine, Kentaro Nakane, Minami Saito, Tomoki Sasaki, Rin Shibuya, Takatoshi Suzuki, Akihiro Takeuchi, Tsutomu T. Umeda, Hiroya Umemura, Masayuki Watanabe, Kuria Yabe, Kiyoto Yajima, Hidenobu Zhang, Yechi National Astronomical Observatory of Japan 2-21-1 Osawa Mitaka Tokyo181-8588 Japan Institute for Cosmic Ray Research The University of Tokyo 5-1-5 Kashiwanoha Chiba Kashiwa277-8582 Japan Osawa 2-21-1 Mitaka Tokyo181-8588 Japan University of Tokyo Chiba Kashiwa277-8583 Japan Kavli Institute for Cosmology University of Cambridge Madingley Road CambridgeCB3 0HA United Kingdom Cavendish Laboratory University of Cambridge 19 JJ Thomson Avenue CambridgeCB3 0HE United Kingdom Waseda Research Institute for Science and Engineering Faculty of Science and Engineering Waseda University 3-4-1 Okubo Shinjuku Tokyo169-8555 Japan Department of Physics Graduate School of Science The University of Tokyo 7-3-1 Hongo Bunkyo Tokyo113-0033 Japan Department of Astronomy Graduate School of Science The University of Tokyo 7-3-1 Hongo Bunkyo Tokyo113-0033 Japan Research Center for Space and Cosmic Evolution Ehime University Bunkyo-cho 2-5 Ehime Matsuyama790-8577 Japan Department of Physics School of Advanced Science and Engineering Faculty of Science and Engineering Waseda University 3-4-1 Okubo Shinjuku Tokyo169-8555 Japan Observatories of the Carnegie Institution for Science 813 Santa Barbara St. PasadenaCA91101 United States Observatoire de Genève Université de Genève 51 Chemin de Pégase Versoix1290 Switzerland 650 North Aohoku Place HiloHI96720 United States Department of Physics and Astronomy University of Notre Dame 225 Nieuwland Science Hall Notre DameIN46556 United States Astronomical Institute Tohoku University 6-3 Aoba Aramaki Aoba-ku Miyagi Sendai980-8578 Japan Division of Physics Faculty of Pure and Applied Sciences University of Tsukuba Ibaraki Tsukuba305-8571 Japan Faculty of Pure and Applied Sciences University of Tsukuba Ibaraki Tsukuba305-8571 Japan Astronomy Program Department of Physics and Astronomy Seoul National University 1 Gwanak-ro Gwanak-gu Seoul08826 Korea Republic of SNU Astronomy Research Cent

Using the Subaru/FOCAS IFU capability, we examine the spatially resolved relationships between gas-phase metallicity, stellar mass, and star-formation rate surface densities (Σ★ and ΣSFR, respectively) in extremely metal-poor galaxies (EMPGs) in the local universe. Our analysis includes 24 EMPGs, comprising 9,177 spaxels, which span a unique parameter space of local metallicity (12 + log(O/H) 6.9 to 7.9) and stellar mass surface density (Σ★ ∼ 105 to 107 Mo kpc−2), extending beyond the range of existing large integral-field spectroscopic surveys. Through spatially resolved emission line diagnostics based on the [N ii] BPT-diagram, we verify the absence of evolved active galactic nuclei in these EMPGs. Our findings reveal that, while the resolved mass-metallicity relation exhibits significant scatter in the low-mass regime, this scatter is closely correlated with local star-formation surface density. Specifically, metallicity decreases as ΣSFR increases for a given Σ★. Notably, half of the EMPGs show a distinct metal-poor horizontal branch on the resolved mass-metallicity relation. This feature typically appears at the peak clump with the highest Σ★ and ΣSFR and is surrounded by a relatively metal-enriched ambient region. These findings support a scenario in which metal-poor gas infall fuels episodic star formation in EMPGs, consistent with the kinematic properties observed in these systems. In addition, we identify four EMPGs with exceptionally low central metallicities (12 + log(O/H) 7.2), which display only a metal-poor clump without a surrounding metal-rich region. This suggests that such ultra-low metallicity EMPGs, at less than a few percent of the solar metallicity, may serve as valuable analogs for galaxies in the early stages of galaxy evolution. Copyright © 2024, The Authors. All rights reserved.

关键词： Spectroscopic analysis

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Emergence of nematic paramagnet via quantum order-by-disorder and pseudo-Goldstone modes in Kitaev magnets

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Physical Review Research 2020年第4期2卷 043023-043023页

作者： Matthias Gohlke Li Ern Chern Hae-Young Kee Yong Baek Kim Theory of Quantum Matter Unit Okinawa Institute of Science and Technology Graduate University Onna-son Okinawa 904-0495 Japan Department of Physics University of Toronto Toronto Ontario Canada M5S 1A7 Canadian Institute for Advanced Research/Quantum Materials Program Toronto Ontario Canada MSG 1Z8 School of Physics Korea Institute for Advanced Study Seoul 130-722 Korea

The appearance of nontrivial phases in Kitaev materials exposed to an external magnetic field has recently been a subject of intensive studies. Here, we elucidate the relation between the field-induced ground states of the classical and quantum spin models proposed for such materials, by using the infinite density matrix renormalization group (iDMRG) and the linear spin wave theory (LSWT). We consider the KΓΓ′ model, where Γ and Γ′ are off-diagonal spin exchanges on top of the dominant Kitaev interaction K. Focusing on the magnetic field along the [111] direction, we explain the origin of the nematic paramagnet, which breaks the lattice-rotational symmetry and exists in an extended window of magnetic field, in the quantum model. This phenomenon can be understood as the effect of quantum order-by-disorder in the frustrated ferromagnet with a continuous manifold of degenerate ground states discovered in the corresponding classical model. We compute the dynamical spin structure factors using a matrix operator based time evolution and compare them with the predictions from LSWT. We, thus, provide predictions for future inelastic neutron scattering experiments on Kitaev materials in an external magnetic field along the [111] direction. In particular, the nematic paramagnet exhibits a characteristic pseudo-Goldstone mode, which results from the lifting of a continuous degeneracy via quantum fluctuations.

关键词： Frustrated magnetism Nematic order Quantum spin liquid Strongly correlated systems Density matrix renormalization group Kitaev model

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Failure analysis of hanger for superheater tube

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AIP Conference Proceedings 2020年第1期2262卷

作者： Husaini Ardy Deri Andika Bangun Arie Wibowo 1Materials Science and Engineering Research Group Bandung Institute of Technology Bandung 40132 Indonesia 2Graduate Program of Materials Engineering Department Bandung Institute of Technology Bandung 40132 Indonesia

Seven out of 12 pieces of hangers for superheater pipe were failed after one year in service. Failure analysis has been conducted to find out the root cause of failure. Hanger material is ASTM A182 Grade F22 Class 1. Fractography examinations revealed that the fracture mode is due to mechanical fatigue. Tensile test results show a tensile strength of 1015 MPa which is far beyond the minimum standard requirement of 415 MPa. The hardness of the failed hanger is between 270 to 325 HB, and un-failed hanger is around 245 HB, which are higher than the maximum standard requirement of 170 HB. The Charpy impact energy is 3 J, far below the standard requirement of 54 J. The microstructure in the bend area and the straight section contained tempered martensite and ferrite. Further examinations were conducted by heat treatment simulations to explore properties after heat treatment. materials are subjected to full annealing treatment at 900°C, and normalizing at 955°C followed by tempering at 675°C. The average hardness is 154 HB after annealing, and 235 HB after normalizing and tempering. According to heat treatment simulation results, hanger material was supposed to be supplied under annealing condition where the hardness fulfils the standard requirement. Failure of superheater pipe hanger is due to improper heat treatment which promote brittleness and initiate premature crack during start-up. Crack initiation might also occur during post forging quenching. Fatigue crack propagation occur during service by small amplitude vibration.

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Detection of gas concentrations based on age on Staphylococcus aureus biofilms with gas array sensors

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AIP Conference Proceedings 2020年第1期2314卷

作者： A. A. S. Pradhana S. D. Astuti M. Khasanah R. K. D. Ardianti 1)Biomedical Engineering Master Program Post Graduate School Universitas Airlangga Surabaya 60115 Indonesia 2)Department of Physics Faculty Science and Technology Universitas Airlangga Surabaya 60115 Indonesia 3)Department of Physics Faculty Science and Technology Universitas Airlangga Surabaya 60115 Indonesia 4)Biomedical Engineering Bachelor Program Post Graduate School Universitas Airlangga Surabaya 60115 Indonesia

Bacteria that have developed in the biofilm phase will be more resistant to antibiotics and emit gases that have certain characteristics. One dose of culture from Trypticase Soy Broth (TSB) (Merck, Germany) was inoculated into 10 mL of Trypticase Soy Broth (TSB) (Merck, Germany) and homogenized for a concentration of 0.5 McFarland (10-13 CFU / mL). The suspension was detected by ELISA reader (λ 595nm)Based on the results that have been obtained, the sensor on the gas array instrument can detect both a variety of distinctive gas patterns in S. Variations in shelf life and variations in the types of samples provided can be tracked both by the entire sensor. This is indicated by the emergence of a unique and different sensor voltage output pattern in each variation. The processing of sensor output using the PCA (Principal Component Analysis) method can accommodate 86.45% of the data variation, including the first component and the second component respectively 70.4% and 18.1%. Through the PCA method, each variation of bacterial treatment can be classified properly, so it can be used to clearly distinguish the age of bacteria and biofilm age. When loading the PCA plot, the MQ2 sensor shows the most responsive results to gas changes. Meanwhile, the MQ136 sensor ranks second as the most responsive sensor to measure the life span of bacteria and biofilms.

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Managing the invisible threat of microplastics in marine ecosystems: Lessons from coast of the Bay of Bengal

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The science of the total environment 2023年 889卷 164224页

作者： Al-Nure Mubin Shahoriar Arefin Md Sonir Mia Abu Reza Md Towfiqul Islam A B M Mainul Bari Md Saiful Islam Mir Mohammad Ali Md Abu Bakar Siddique M Safiur Rahman Venkatramanan Senapathi Abubakr M Idris Guilherme Malafaia Department of Disaster Management Begum Rokeya University Rangpur 5400 Bangladesh. Department of Disaster Management Begum Rokeya University Rangpur 5400 Bangladesh Department of Development Studies Daffodil International University Dhaka 1216 Bangladesh. Electronic address: towfiq_dm@brur.ac.bd. Department of Industrial and Production Engineering Bangladesh University of Engineering and Technology Dhaka 1000 Bangladesh. Department of Soil Science Patuakhali Science and Technology University Dumki Patuakhali 8602 Bangladesh. Department of Aquaculture Sher - e - Bangla Agricultural University Dhaka 1207 Bangladesh. Institute of National Analytical Research and Service (INARS) Bangladesh Council of Scientific and Industrial Research (BCSIR) Dhanmondi Dhaka 1205 Bangladesh. Analytical Chemistry Laboratory Chemistry Division Atomic Energy Centre Dhaka (AECD) Bangladesh Atomic Energy Commission Dhaka 1000 Bangladesh. Department of Disaster Management Alagappa University Karaikudi Tamilnadu India. Department of Chemistry College of Science King Khalid University Abha 62529 Saudi Arabia Research Center for Advanced Materials Science (RCAMS) King Khalid University Abha Saudi Arabia. Post-Graduation Program in Conservation of Cerrado Natural Resources Goiano Federal Institute Urutaí GO Brazil Post-Graduation Program in Ecology Conservation and Biodiversity Federal University of Uberlândia Uberlândia MG Brazil Post-Graduation Program in Biotechnology and Biodiversity Federal University of Goiás Goiânia GO Brazil. Electronic address: guilhermeifgoiano@***.

Invisible microplastics (MP) have become a significant problem worldwide in recent years. Although many studies have highlighted the sources, effects, and fate of MPs pollution on various ecosystems in developed countries, there is limited information on MPs in the marine ecosystem along the northeastern coast of the Bay of Bengal (BoB). Coastal ecosystems along the BoB coasts are critical to a biodiverse ecology that supports human survival and resource extraction. However, the multi-environmental hotspots, ecotoxicity effects, transport mechanisms, fates, and intervention measures to control MP pollution initiatives along the BoB coasts have received little attention. Therefore, this review aims to highlight the multi-environmental hotspots, ecotoxicity effects, sources, fates, and intervention measures of MP in the northeastern BoB to understand how MP spreads in the nearshore marine ecosystem. This study critically evaluates the hotspots and ecotoxic effects of pollution from MP on the coastal multi-environment, e.g., soil, sediment, salt, water, and fish, as well as current intervention measures and additional mitigation recommendations. This study identified the northeastern part of the BoB as a hotspot for MP. In addition, the transport mechanisms and fate of MP in different environmental compartments are highlighted, as are research gaps and potential future research areas. Research on the ecotoxic effects of MP on BoB marine ecosystems must be a top priority, given the increasing use of plastics and the presence of significant marine products worldwide. The knowledge gained from this study would inform decision-makers and stakeholders in a way that could reduce the impact of the legacy of micro- and nanoplastics in the area. This study also proposes structural and non-structural measures to mitigate the effects of MPs and promote sustainable management.

关键词： Bay of Bengal coast Marine ecosystem Marine pollution Microplastic Sustainable management

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Immobilization of poly(hexamethylene biguanide) to cellulose acetate- and cellulose-based nanofiber membranes for antibacterial and cytotoxic studies

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Biochemical Engineering Journal 2024年 205卷

作者： Dinh Thi My Huong Chi-Yun Wang Pin-Yi Chen Chien Wei Ooi Xue Er Crystal Thew Bing-Lan Liu Chen-Yaw Chiu Shen-Long Tsai Kuei-Hsiang Chen Yu-Kaung Chang Department Chemical Technology and Environment University of Technology and Education the University of Da Nang Da Nang City Viet Nam Department Chemical Engineering/ Graduate School of Biochemical Engineering Ming Chi University of Technology New Taipei City 243303 Taiwan Department Chemical Engineering National Taiwan University of Science and Technology Taipei City 10607 Taiwan International Ph.D. Program in Innovative Technology of Biomedical Engineering and Medical Devices Ming Chi University of Technology New Taipei City 243303 Taiwan Bone and Joint Research Centre Chang Gung Memorial Hospital Taoyuan City 333423 Taiwan Research Center for Intelligent Medical Devices Ming Chi University of Technology New Taipei City 243303 Taiwan Chemical Engineering Department School of Engineering Monash University Malaysia Jalan Lagoon Selatan Bandar Sunway Selangor 47500 Malaysia Advanced Engineering Platform School of Engineering Monash University Malaysia Jalan Lagoon Selatan 47500 Bandar Sunway Selangor Malaysia Department of Applied Chemistry Chaoyang University of Technology Taichung 413310 Taiwan Department of Chemical Engineering and Materials Science Yuan Ze University Zhongli Dist Taoyuan City 320315 Taiwan

To develop the environmental antibacterial membrane, the physical attachments of poly (hexamethylene biguanide) hydrochloride (PHMB) on the cellulose acetate (CA) and regenerated cellulose (RC) electrospun nanofiber membranes were employed. The immobilization of PHMB increased the antibacterial efficacy ( AE , %) of nanofiber membranes from 65.67% to approximately 86.13% for CA-PHMB and from 35.09% to approximately 100% for RC-PHMB. The results of the chemical and physical characteristics indicate that the degree of deacetylation of CA nanofiber, the surface charge of the nanofiber, and the density of PHMB immobilized onto the nanofiber primarily affect the antibacterial efficacy. The use of mathematical models, such as the Temkin equilibrium model for PHMB immobilization and the Monod-type model for the relationship between antibacterial activity and immobilization density of PHMB provides a deeper understanding of the interactions and kinetics involved. The rapid achievement of ∼100% AE after only 10 min of contact with Escherichia coli ( E. coli ) is a notable finding, indicating the quick and efficient antibacterial action of RC-PHMB nanofiber membranes. Furthermore, maintaining approximately 100% AE after 20 days of storage underscores the long-term stability of PHMB immobilized on RC nanofiber membranes. The findings suggest that RC-PHMB holds great promise as an antibacterial material for biomedical applications, food packaging industries, and filtration or treatment of water.

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Composition and functional groups evaluation of Indonesian Grey Portland cement as material for dental application

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Key Engineering materials 2018年第1期782卷 256-261页

作者： Primathena, Indra Nurdin, Denny Farah Adang, Rahmi Alma Cahyanto, Arief Graduate School of Biomedical Science Master Program Faculty of Medicine Universitas Padjadjaran Jl. Prof. Eyckman No.38 Bandung40161 Indonesia Department of Dental Materials Science and Technology Faculty of Dentistry Universitas Padjadjaran Jl. Raya Bandung-Sumedang KM 21 Jatinangor45363 Indonesia

Tricalcium silicates cement known as Mineral Trioxide Aggregate (MTA) was one of the influential materials in endodontics. At recent, MTA in dental application play an essential role in endodontics treatment due to its potential to regenerate tertiary dentine, apexification, and seal perforated root. However, MTA for dental application is still expensive. Portland cement has similarities with the MTA, especially portland cement fabricated in Indonesia. The purpose of this study is to investigate the composition and functional groups of tricalcium silicate from portland cement that fabricated in Indonesia. The Indonesian grey portland cement powder/portland cement type I (SNI-15-7064-2014) was used as a sample and commercialized MTA from Tehnodent (Rootdent) was used as a control for comparison. Powder and control samples were evaluated using X-ray fluorescence spectrometry (XRF) for composition test and Fourier-transform infrared spectroscopy (FTIR) for functional group analyses. The XRF evaluation showed that the composition and concentration of Indonesian grey portland cement powder almost has similarity with commercial MTA. Moreover, the Indonesian grey portland cement powder has higher Calcium and Silicon ions compared to MTA. The FTIR analyses revealed that the calcium silicate groups were detected. In conclusion, the Indonesian grey portland cement powder has high similarity to MTA, therefore, it has a possibility to be used as tricalcium silicate cement for MTA substitution. Further study is awaited based on this initial finding found in this study. © 2018 Trans Tech Publications, Switzerland.

关键词： Portland cement

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