Directory of Open Access Journals (DOAJ)
Produção Nacional
Revisado por pares
Eduardo Neves Costa, Lucas Ortega Martins, Lucas Coutinho Reis, Marcos Gino Fernandes, Silvana de Paula Quintão Scalon,
... Tumucumaque, Fradinho, and Miranda), and two were landraces (Juti and Nioaque), in three different experiments. In the ... cowpea leaves were assessed. Insects fed on landrace Juti plants showed low adult emergence, yielded a lower ... dry matter reduction. In addition, plants of landrace Juti were less preferred for oviposition. Overall, Juti plants showed higher resistance levels in all three ... leaves, in addition to a lower protein content. Juti will be tested in field conditions, followed by ...
Tópico(s): Insect Resistance and Genetics
2020 - Oxford University Press | Journal of Economic Entomology
Chia‐Hung Lin, Hai Ni, Xinnan Wang, Ming Chang, Yuh J. Chao, Juti Rani Deka, Xiaodong Li,
Nanomechanical characterization of single-crystalline boron nanowires is carried out by buckling individual nanowires with a nanomanipulator inside a scanning electron microscope in situ. The buckling behavior is studied and the applied load curves analyzed. A general calibration procedure for precisely measuring the mechanical properties of nanowires is established.
Tópico(s): Nanowire Synthesis and Applications
2010 - Wiley | Small
Ming Chang, Chin-Chun Chung, Juti Rani Deka, Chin Ho Lin, Tze‐Wen Chung,
In this investigation titanate nanowires were synthesized by a microwave hydrothermal process and their nanomechanical characterization was carried out by a compression experiment via buckling instability using a nanomanipulator inside a scanning electron microscope. Nanowires of diameters 120-150 nm and length tens of microns can be synthesized by keeping a commercial nanoparticle inside a microwave oven at 350 W and 210 °C for 5 h. The nanowire was clamped between two cantilevered AFM tips attached ...
Tópico(s): MXene and MAX Phase Materials
2007 - IOP Publishing | Nanotechnology
Wei‐Yun Cheng, Juti Rani Deka, Yi-Chun Chiang, Antoine Rogeau, Shih‐Yuan Lu,
A facile, one-step, template-less, surfactant-free hydrothermal process, using a metal salt as the precursor, is developed to prepare submicrometer sized mesoporous TiO2 nanoparticle aggregates (NPGs). The as-prepared TiO2 NPGs are crystalline of the anatase phase, with a high specific surface area of 166 m2/g, an average pore size of 8.9 nm, and an average NPG size of 840 nm. With these NPGs, a new form of composite photoanode, consisting of the mesoporous TiO2 NPGs and xerogels, is proposed for ...
Tópico(s): Advanced Nanomaterials in Catalysis
2012 - American Chemical Society | Chemistry of Materials
Juti Rani Deka, Chiа-Ling Liu, Tzu‐Hua Wang, Wei-Chieh Chang, Hsien‐Ming Kao,
Periodic mesoporous organosilicas (PMOs) with benzene bridging groups in the silica wall were functionalized with a tunable content of phosphonic acid groups. These bifunctional materials were synthesized by co-condensation of two different organosilane precursors, that is, 1,4-bis(triethoxysilyl)benzene (BTEB) and sodium 3-(trihydroxysilyl)propyl methyl phosphate (SPMP), under acidic conditions using nonionic surfactant Brij-S10 as template. The materials exhibited well-ordered mesostructures and ...
Tópico(s): Chemical Synthesis and Characterization
2014 - Elsevier BV | Journal of Hazardous Materials
Juti Rani Deka, Yu‐Hsuan Lin, Hsien‐Ming Kao,
Cubic cage-type KIT-5 mesoporous silica functionalized with carboxylic acid (–COOH) groups, ranging from 0 to 45 mol% based on silica, were synthesized via co-condensation of tetraethyl orthosilicate (TEOS) and carboxyethylsilanetriol sodium salt (CES) in the presence of Pluronic F127 in acidic media. The materials thus obtained were characterized by powder X-ray diffraction, nitrogen sorption, transmission electron microscopy, FTIR, thermogravimetric analysis, acid–base titration, and solid-state NMR ...
Tópico(s): Adsorption and biosorption for pollutant removal
2014 - Royal Society of Chemistry | RSC Advances
Juti Rani Deka, Hsien‐Ming Kao, Shuying Huang, Wei‐Chieh Chang, Chun‐Chiang Ting, Purna Chandra Rath, Ching‐Shiun Chen,
Abstract Well‐ordered periodic mesoporous organosilicas (PMOs) functionalized with high contents of carboxylic acid (COOH) groups, up to 85 mol % based on silica, were synthesized by co‐condensation of 1,2‐bis(triethoxysilyl)ethane (BTEE) and carboxyethylsilanetriol sodium salt (CES) under acidic conditions by using alkyl poly(oxyethylene) surfactant Brij 76 as a structure‐directing agent. A variety of techniques including powder X‐ray diffraction (XRD), nitrogen adsorption/desorption, Fourier‐transformed ...
Tópico(s): Catalytic Processes in Materials Science
2013 - Wiley | Chemistry - A European Journal
Hao‐Yiang Wu, Fa‐Kuen Shieh, Hsien‐Ming Kao, Yiwen Chen, Juti Rani Deka, Shih‐Hsiang Liao, Kevin C.‐W. Wu,
Highly ordered benzene-bridged periodic mesoporous organosilicas (PMOs) that were functionalized with exceptionally high loadings of carboxylic acid groups (COOH), up to 80 mol % based on silica, have been synthesized and their use as adsorbents for the adsorption of methylene blue (MB), a basic dye pollutant, and for the loading and release of doxorubicin (DOX), an anticancer drug, is demonstrated. These COOH-functionalized benzene-silicas were synthesized by the co-condensation of 1,4-bis(triethoxysilyl) ...
Tópico(s): Zeolite Catalysis and Synthesis
2013 - Wiley | Chemistry - A European Journal
Fa‐Kuen Shieh, Chia-Teng Hsiao, Jhe-Wei Wu, Yu-Chain Sue, Ya-Ling Bao, Yi‐Hsin Liu, Lei Wan, Ming-Hua Hsu, Juti Rani Deka, Hsien‐Ming Kao,
A general synthetic method for functionalization of mesoporous silica with amino acid has been developed. The carboxylic acid functionalized SBA-15 was conjugated with l-phenylalanine (Phe) and l-tryptophan (Trp) to obtain nontoxic amino acid-conjugated functionalized mesoporous silica materials. The materials were used as adsorbents for the removal of the herbicide Paraquat (PQ) and its analog, ethyl viologen dibromide (EVB) from aqueous solutions. In comparison to the commercially available activated ...
Tópico(s): Mesoporous Materials and Catalysis
2013 - Elsevier BV | Journal of Hazardous Materials
Wei-Chieh Chang, Juti Rani Deka, Hao-Yiang Wu, Fa‐Kuen Shieh, Shu-Ying Huang, Hsien‐Ming Kao,
Well-ordered cubic FDU-12 type mesoporous silicas functionalized with various contents of carboxylic acid group (COOH), up to 40 mol% based on silica, were synthesized via co-condensation of tetraethyl orthosilicate (TEOS) and carboxyethylsilanetriol sodium salt (CES) under acidic conditions using Pluronic F127 triblock copolymer as template. The materials thus obtained were characterized by a variety of techniques including powder X-ray diffraction (XRD), nitrogen adsorption–desorption, transmission ...
Tópico(s): Clay minerals and soil interactions
2013 - Elsevier BV | Applied Catalysis B Environment and Energy
... bare foot practices, excess alcohol intake and local juti's (faulty footwear) further increase the risk of ...
Tópico(s): Skin Diseases and Diabetes
2015 - OMICS Publishing Group | Journal of Diabetes & Metabolism
Juti Rani Deka, Diganta Saikia, Yan-Shan Lai, Cheng-Hsun Tsai, Wei-Chieh Chang, Hsien‐Ming Kao,
Cage-type cubic mesoporous silicas FDU-12 functionalized with a tunable content of carboxylic acid (–COOH) groups, ranging from 0 to 50 mol% based on silica, were used for immobilization of lysozyme. The particle size of –COOH functionalized FDU-12 was highly dependent on the relative amount of carboxyethylsilanetriol sodium salt (CES) and tetraethoxysilane (TEOS) in the reaction mixture. The particle size was around 200 nm for the materials prepared with the CES/(TEOS + CES) molar ratio of 20%–30%. The ...
Tópico(s): Polymer Surface Interaction Studies
2015 - Elsevier BV | Microporous and Mesoporous Materials
Diganta Saikia, Juti Rani Deka, Cheng-En Wu, Yung‐Chin Yang, Hsien‐Ming Kao,
Cubic mesoporous silica nanoparticles (MSNs) with the SBA-1 moiety, functionalized with carboxylic acid (COOH) groups as well as enlarged mesopores, are successfully synthesized using tetraethyl orthosilicate (TEOS) and carboxyethylsilanetriol sodium salt (CES) as silica sources, complexes formed by polyacrylic acid (PAA) and hexadecylpyridinium chloride (CPC) as templates, and trimethylbenzene (TMB) as pore expander. The successful incorporation of organic functionalities are confirmed by 13C and 29Si ...
Tópico(s): Adsorption and biosorption for pollutant removal
2018 - Elsevier BV | Materials Science and Engineering C
Juti Rani Deka, Canggih Setya Budi, Chien‐Hua Lin, Diganta Saikia, Yung‐Chin Yang, Hsien‐Ming Kao,
Abstract Carboxylic acid functionalized 3D cage‐type mesoporous silica FDU‐12 with high surface area and pore volume was synthesized by a one‐pot co‐condensation method and used as support to synthesize Pt nanoparticles (NPs). The uniformly distributed COOH groups in the cage can control the growth of Pt NPs with high dispersion (Pt@CF‐12). Pt@CF‐12 was used as catalyst for the hydrolysis of ammonia borane to generate H 2 and for the reduction of 4‐nitrophenol to 4‐aminophenol. The catalyst exhibits ...
Tópico(s): Ammonia Synthesis and Nitrogen Reduction
2018 - Wiley | Chemistry - A European Journal
Mu-Hsin Lee, Juti Rani Deka, Chun-Jiun Cheng, Ning-Fang Lu, Diganta Saikia, Yung‐Chin Yang, Hsien‐Ming Kao,
Tópico(s): Electrocatalysts for Energy Conversion
2018 - Elsevier BV | Applied Surface Science
Juti Rani Deka, Diganta Saikia, Gwo-Wei Lou, Chien-Hua Lin, Jason Fang, Yung‐Chin Yang, Hsien‐Ming Kao,
In this study, polysiloxane and polyetherdiamine based comb-shaped solid polymer electrolytes (SPEs) are developed by hydrosilylation and sol-gel reactions of polymethylhydrosiloxane, allyltriethoxysilane, bis(2-aminopropyl) polypropylene glycol-block-polyethylene glycol-block-polypropylene glycol and (3-glycidoxypropyl)trimethoxysilane followed by LiClO4 doping. The absence of residual Si‒H functionality in FTIR and 29Si CPMAS NMR spectra confirms the completion of hydrosilylation reaction. The formation ...
Tópico(s): Advancements in Battery Materials
2018 - Elsevier BV | Materials Research Bulletin
Canggih Setya Budi, Juti Rani Deka, Diganta Saikia, Hsien‐Ming Kao, Yung‐Chin Yang,
Highly active Ag-doped Ni nanoparticles are successfully fabricated within carboxylic acid (-COOH) functionalized mesoporous silica SBA-16 by a facile wet incipient technique for catalytic conversion of toxic nitroaromatics. The -COOH groups on SBA-16 play a crucial role by enhancing the electrostatic interactions with Ag(I)/Ni(II) cations, that control the crystal growth during the thermal reduction. Systematic characterizations of SBA-16C and Agx%Ni@SBA-16C are performed by different techniques including ...
Tópico(s): Advanced Photocatalysis Techniques
2019 - Elsevier BV | Journal of Hazardous Materials
Diganta Saikia, Juti Rani Deka, Chieh-Ju Chou, Hsien‐Ming Kao, Yung‐Chin Yang,
A facile wet-impregnation process is employed to prepare ultrafine SnO2 nanoparticles that are confined in three dimensional interpenetrating cubic ordered mesoporous carbon. The nanocomposite that is composed of SnO2 and ordered mesoporous carbon serves as a promising anode in lithium-ion batteries. Successful confinement and crystallization of SnO2 nanoparticles are confirmed by a variety of characterization techniques including nitrogen adsorption-desorption isotherms, X-ray diffraction, selected ...
Tópico(s): Advanced Battery Materials and Technologies
2019 - Elsevier BV | Journal of Alloys and Compounds
Diganta Saikia, Juti Rani Deka, Chieh-Ju Chou, Chien-Hua Lin, Yung‐Chin Yang, Hsien‐Ming Kao,
A nanocomposite cathode based on LiFePO4 (LF) nanoparticles embedded 3D cubic ordered mesoporous carbon CMK-8 for lithium-ion batteries is synthesized by a facile impregnation method followed by further modification with carbon coating. The effects of variation of carbon contents on electrochemical performances of cathodes are investigated. The highly crystalline nanophase of LiFePO4 particles is confirmed by X-ray diffraction and TEM analysis. Nitrogen adsorption–desorption isotherms reveal persistence ...
Tópico(s): Advanced Battery Materials and Technologies
2019 - American Chemical Society | ACS Applied Energy Materials
Juti Rani Deka, Mu-Hsin Lee, Diganta Saikia, Hsien‐Ming Kao, Yung‐Chin Yang,
Fabrication of a highly active mesoporous silica SBA-16 supported Cu nanocatalyst with superb durability for the reduction of 4-nitrophenol into 4-aminophenol.
Tópico(s): Copper-based nanomaterials and applications
2019 - Royal Society of Chemistry | Dalton Transactions
Juti Rani Deka, Diganta Saikia, Pang-Hao Chen, Ke-Ting Chen, Hsien‐Ming Kao, Yung‐Chin Yang,
Benzene-bridged periodic mesoporous organosilicas (PMOs) are functionalized with carboxylic acid (−COOH) groups and used as the supports to immobilize Pd nanoparticles (Pd NPs). It is found that the −COOH functional groups play an important role in controlling the dispersion and growth of Pd NPs. [email protected] are employed as the catalyst for hydrogen generation from hydrolysis of ammonia borane (AB) which shows turnover frequency (TOF) of 30.08 molH2molPd-1min-1 and activation energy of 34.9 kJ mol− ...
Tópico(s): Electrocatalysts for Energy Conversion
2020 - Elsevier BV | Materials Research Bulletin
Diganta Saikia, Juti Rani Deka, Cheng‐Wei Lin, Yuan‐Hung Lai, Yu‐Hao Zeng, Po‐Hung Chen, Hsien‐Ming Kao, Yung‐Chin Yang,
Ultrafine CoO particles immobilized into the mesopores of three-dimensional cubic bimodal ordered mesoporous carbon CMK-9 is successfully prepared by using a combination of nanocasting and wet-impregnation methods. It is found that the cubic bimodal interconnected mesoporous framework of CMK-9 plays a crucial role in achieving the excellent electrochemical performances by assisting the rapid mass and charge transfer. Among the prepared nanocomposites, CoO(10)@CMK-9 delivers a discharge capacity ...
Tópico(s): Advanced Battery Materials and Technologies
2020 - Wiley | ChemSusChem
Canggih Setya Budi, Juti Rani Deka, Wan-Chi Hsu, Diganta Saikia, Ke-Ting Chen, Hsien‐Ming Kao, Yung‐Chin Yang,
In this study, a sub-class of microporous crystalline metal organic frameworks (MOFs) with zeolite-like configurations, i.e., zeolitic imidazolate frameworks of single node ZIF-67 and binary nodes ZIF-Co/Zn are used as the supports to develop Cu nanoparticles based nanocatalysts. Their catalytic activities are comparatively evaluated where Cu(x)@ZIF-Co/Zn exhibits better performances than Cu(x)@ZIF-67 in the reduction of synthetic dyes and nitroarenes. For instance, the Cu(0.25)@ZIF-Co/Zn catalyst ...
Tópico(s): Advanced Photocatalysis Techniques
2020 - Elsevier BV | Journal of Hazardous Materials
Juti Rani Deka, Diganta Saikia, Ning-Fang Lu, Ke-Ting Chen, Hsien‐Ming Kao, Yung‐Chin Yang,
Bimetallic CoCu nanoparticles (NPs) are successfully embedded within the cage-type mesopores of COOH functionalized mesoporous silica SBA-16 by double agent chemical reduction method. The presence of the COOH groups in SBA-16 control the size and dispersion of the CoCu NPs. [email protected] is used as the catalyst for the hydrolysis of ammonia borane (AB) and reduction of 4-nitrophenol (4-NP) to 4-aminophenol (4-AP). The catalytic activity of the [email protected] outperforms that of monometallic counterparts ...
Tópico(s): Nanomaterials for catalytic reactions
2020 - Elsevier BV | Applied Surface Science
Juti Rani Deka, Diganta Saikia, Kuo-Shu Hsia, Hsien‐Ming Kao, Yung‐Chin Yang, Ching‐Shiun Chen,
Cubic mesoporous silica SBA-1 functionalized with carboxylic acid (-COOH), namely S1B-C10, is used as a support to fabricate and confine Ru nanoparticles (NPs). The uniformly dispersed organic functional groups in SBA-1 are beneficial in attracting Ru cations, and as a result, homogenously distributed small sized Ru NPs are formed within the mesopores. The prepared Ru@S1B-C10 is utilized as a catalyst for H2 generation from the hydrolysis of ammonia borane (AB). The Ru@S1B-C10 catalyst demonstrates ...
Tópico(s): Hybrid Renewable Energy Systems
2020 - Multidisciplinary Digital Publishing Institute | Catalysts
Diganta Saikia, Juti Rani Deka, Bing‐Jyun Lu, Yi-Ching Chen, Jia-Wei Lian, Hsien‐Ming Kao, Yung‐Chin Yang,
Tópico(s): Advanced Battery Materials and Technologies
2023 - Elsevier BV | Journal of Power Sources
Anupam Sarma, Ratnali Bania, Juti Rani Devi, Satyendra Deka,
Abstract Nanotechnology, with its continuous advancement, leads to the development of nanoscale‐level therapeutics to mitigate many complex diseases. This results in the emergence of numerous novel nanomaterials and its composite products into the market such as liposome, polymeric nanoparticles, dendrimers, and nanostructured lipid carrier. However, their application is always determined by a high benefit to risk ratio. Very few research have been done on the toxicity assessment of nanoparticles ...
Tópico(s): Graphene and Nanomaterials Applications
2021 - Wiley | Journal of Applied Toxicology
Brett Trost, Bhooma Thiruvahindrapuram, Ada J. S. Chan, Worrawat Engchuan, Edward J. Higginbotham, Jennifer Howe, Lívia O. Loureiro, Miriam S. Reuter, Delnaz Roshandel, J. Andrew Whitney, Mehdi Zarrei, Matthew Bookman, Cherith Somerville, Rulan Shaath, Mona Abdi, Elbay Aliyev, Rohan Patel, Thomas Nalpathamkalam, Giovanna Pellecchia, Omar Hamdan, Gaganjot Kaur, Zhuozhi Wang, Jeffrey R. MacDonald, John Wei, Wilson W. L. Sung, Sylvia Lamoureux, Ny Hoang, Thanuja Selvanayagam, Nicole Deflaux, Melissa Geng, Siavash Ghaffari, John Bates, Edwin J. Young, Qiliang Ding, Carole Shum, Lia D’Abate, Clarrisa A. Bradley, Annabel Rutherford, Vernie Aguda, Beverly Apresto, Nan Chen, Sachin Desai, Xiaoyan Du, Matthew L.Y. Fong, Sanjeev Pullenayegum, Kozue Samler, Ting Wang, Karen Ho, Tara Paton, Sérgio L. Pereira, Jo-Anne Herbrick, Richard F. Wintle, Jonathan Fuerth, Juti Noppornpitak, Heather Ward, Patrick Magee, Ayman Al Baz, Usanthan Kajendirarajah, Sharvari Kapadia, Jim Vlasblom, Monica Valluri, Joseph Green, Vicki Seifer, Morgan Quirbach, Olivia Rennie, Elizabeth Kelley, Nina Masjedi, Catherine Lord, Michael J. Szego, Ma’n H. Zawati, Michael Lang, Lisa J. Strug, Christian R. Marshall, Gregory Costain, Kristina Calli, Alana Iaboni, Afiqah Yusuf, Patricia Ambrozewicz, Louise Gallagher, David G. Amaral, Jessica Brian, Mayada Elsabbagh, Stelios Georgiades, Daniel S. Messinger, Sally Ozonoff, Jonathan Sebat, Calvin Sjaarda, Isabel M. Smith, Peter Szatmari, Lonnie Zwaigenbaum, Azadeh Kushki, Thomas Frazier, Jacob Vorstman, Khalid A. Fakhro, Bridget A. Fernandez, M. E. Suzanne Lewis, Rosanna Weksberg, Marc Fiume, Ryan K. C. Yuen, Evdokia Anagnostou, Neal Sondheimer, David Glazer, Dean M. Hartley, Stephen W. Scherer,
Fully understanding autism spectrum disorder (ASD) genetics requires whole-genome sequencing (WGS). We present the latest release of the Autism Speaks MSSNG resource, which includes WGS data from 5,100 individuals with ASD and 6,212 non-ASD parents and siblings (total n = 11,312). Examining a wide variety of genetic variants in MSSNG and the Simons Simplex Collection (SSC; n = 9,205), we identified ASD-associated rare variants in 718/5,100 individuals with ASD from MSSNG (14.1%) and 350/2,419 from SSC (14. ...
Tópico(s): Genetics and Neurodevelopmental Disorders
2022 - Cell Press | Cell
Juti Rani Deka, Shanmugam Vetrivel, Hao-Yiang Wu, Yu-Chi Pan, Chun-Chiang Ting, Yu‐Lin Tsai, Hsien‐Ming Kao,
Benzene-bridged periodic mesoporous organosilicas (PMOs) with the MCM-41 were synthesized by a rapid sonochemical process via co-condensation of tetraethoxysilane (TEOS) and 1,4-bis(triethoxysilyl) benzene (BTEB) under basic conditions within a few minutes using cetyltrimethylammoniumbromide (CTMABr) as a structure-directing agent. The molar ratio of the silicon precursors and the synthesis time were varied in order to investigate their influence on the structural ordering of the materials. The characteristics ...
Tópico(s): Polyoxometalates: Synthesis and Applications
2013 - Elsevier BV | Ultrasonics Sonochemistry