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  • Open Access


    In vitro polymerization of the dopamine-borate melanin precursor: A proof-of-concept regarding boron neutron-capture therapy for melanoma


    BIOCELL, Vol.47, No.4, pp. 919-928, 2023, DOI:10.32604/biocell.2023.026631


    The 10boron neutron-capture therapy (BNCT) is an emerging antitumoral method that shows increasing biomedical interest. BNCT is based on the selective accumulation of the 10boron isotope within the tumor, which is then irradiated with low-energy thermal neutrons, generating nuclear fission that produces 7lithium, 4helium, and γ rays. Simple catechol-borate esters have been rather overlooked as precursors of melanin biosynthesis, and therefore, a proof-of-concept approach for using dopamine-borate (DABO) as a suitable boron-containing candidate for potential BNCT is presented here. DABO can spontaneously oxidize and autopolymerize in vitro, giving a soluble, eumelanin-like brown-black poly-DABO product. Melanotic melanoma cell cultures treated with… More >

  • Open Access


    Application of Zinc, Iron and Boron Enhances Productivity and Grain Biofortification of Mungbean

    Muhammad Zafar1, Siraj Ahmed1, Muhammad Kashif Munir1, Nawal Zafar1, Muhammad Saqib1, Muhammad Aleem Sarwar2, Saba Iqbal1, Baber Ali3, Naveed Akhtar1, Basharat Ali4,*, Sadam Hussain5,*, Muhammad Saeed6, Mohammad Khalid Al-Sadoon7, Aneela Gulnaz8

    Phyton-International Journal of Experimental Botany, Vol.92, No.4, pp. 983-999, 2023, DOI:10.32604/phyton.2023.025813

    Abstract Deficiencies of essential vitamins, iron (Fe), and zinc (Zn) affect over one-half of the world’s population. A significant progress has been made to control micronutrient deficiencies through supplementation, but new approaches are needed, especially to reach the rural poor. Agronomic biofortification of pulses with Zn, Fe, and boron (B) offers a pragmatic solution to combat hidden hunger instead of food fortification and supplementation. Moreover, it also has positive effects on crop production as well. Therefore, we conducted three separate field experiments for two consecutive years to evaluate the impact of soil and foliar application of the aforementioned nutrients on the… More >

  • Open Access


    Insight into Hydrolytic Stability and Tribological Properties of B-N Coordination Tung Oil-Based Lubricant Additive in Water

    Na Yao1,2, Haiyang Ding1,2,*, Mei Li2, Pengcheng Wang3, Shouhai Li1,2, Lina Xu2, Xiaohua Yang2

    Journal of Renewable Materials, Vol.11, No.3, pp. 1367-1381, 2023, DOI:10.32604/jrm.2022.023411

    Abstract A tung oil-based boron-nitrogen coordination polymer (TWE-BN) was specially designed and synthesized as a highly efficient water-based lubricant additive, which has been beneficial to both energy conservation and conducive to environmental protection. Its hydrolysis stability and tribological properties in water were investigated. To better research the lubricating properties, and thus to understand the interaction between the surface and the lubricating additives. Herein, both experimental and theoretical computations based on density functional theory (DFT) were performed. The addition of TWE-BN reduces the water friction coefficient and wear scar diameter, and the maximum non-seizure load increased from 93 to 726 N. Moreover, the… More > Graphic Abstract

    Insight into Hydrolytic Stability and Tribological Properties of B-N Coordination Tung Oil-Based Lubricant Additive in Water

  • Open Access


    High Permeability of Boron along the Transverse Direction of Wood under High-Voltage Electrostatic Field (HVEF) Treatment

    Daiyuan Zhang1, Qian He2, Baocong Du2, Junbao Yu2,3, Xudong Zhu3, Dingyi Yang2, Shengcai Li2, Tianyi Zhan1, Liming Shen1,*, Zhiqiang Wang1,*, Xiaoning Lu1

    Journal of Renewable Materials, Vol.10, No.3, pp. 721-734, 2022, DOI:10.32604/jrm.2022.016793

    Abstract Permeability of wood preservative is one of the most significant factors for protection of wood construction. Anisotropic flow permeability was involved in different directions of wood with higher flow resistance in the transverse and lower longitudinal directions. In this study, boron acid solution was brushed onto the tangential section of air-dried wood cubes and boron penetration along wood transverse direction was investigated under free diffusion, vacuum and HVEF treatments. Multi-scale boron distribution, FTIR measurement, leaching property, mechanical properties and fungistatic characteristic were investigated for free diffusion, vacuum and HVEF treated samples respectively. The results revealed that boron exhibited high permeability… More >

  • Open Access


    Hydrogenated Amorphous Carbon Films from Palmyra Sugar

    Budhi Priyanto1,2,*, Retno Asih1, Irma Septi Ardiani1, Anna Zakiyatul Laila1, Khoirotun Nadiyyah1, Bima Romadhon3, Sarayut Tunmee4, Hideki Nakajima4, Triwikantoro1, Yoyok Cahyono1, Darminto1,*

    Journal of Renewable Materials, Vol.9, No.6, pp. 1087-1098, 2021, DOI:10.32604/jrm.2021.014466

    Abstract A simple, highly reproducible, and environmentally friendly method is a considered approach in generating renewable energy materials. Here, hydrogenated amorphous carbon (a-C) films have been successfully prepared from palmyra liquid sugar, employing spin-coating and spraying methods. Compared with the former method, the latter shows a significance in producing a better homogeneity in particle size and film thickness. The obtained films have a thickness of approximately 1000 to 100 nm and contain an sp2 hexagonal structure (~70%) and sp3 tetrahedral configuration (~30%) of carbons. The introduction of boron (B) and nitrogen (N) as dopants has created the local structural modification of… More > Graphic Abstract

    Hydrogenated Amorphous Carbon Films from Palmyra Sugar

  • Open Access


    Electronic structure of flattened boron nitride nanotubes: first-principles DFT study

    Yusuke Kinoshita1, Shin Hase1, Nobutada Ohno1

    The International Conference on Computational & Experimental Engineering and Sciences, Vol.10, No.2, pp. 39-40, 2009, DOI:10.3970/icces.2009.010.039

    Abstract Boron nitride nanotubes (BNNTs) have been found to be truly electrically insulating regardless of their diameters, chiralities and number of shells. On the other hand, a recent experimental work on multi-walled BNNTs has shown that electrical transport properties of the BNNTs change from insulating to semiconducting through a bending deformation. However, deformation-induced electrical effects in BNNTs have not been fully clarified yet. In the present work, HOMO-LUMO energy gaps of (5,0), (13,0), (21,0) single-walled BNNTs (SWBNNTs) and (5,0)@(13,0), (13,0)@(21,0) double-walled BNNTs (DWBNNTs) under flattening deformation have been investigated using first-principles density functional calculations. The LUMO energies of the three SWBNNTs… More >

  • Open Access


    Time-Resolved Penetration of B4C Tiles by the APM2 Bullet

    Charles E. Anderson, Jr.1, Matthew S. Burkins2, James D. Walker1, William A. Gooch2

    CMES-Computer Modeling in Engineering & Sciences, Vol.8, No.2, pp. 91-104, 2005, DOI:10.3970/cmes.2005.008.091

    Abstract A modification of Wilkins computational ceramics model is used to simulate experiments of the impact of the APM2 bullet against boron carbide/aluminum targets. Flash radiography provides time-resolved penetration histories. The simulation results are compared to the experimental data; generally, agreement is very good, including capturing dwell and then the onset of penetration. Crater width and debris diameter are also reproduced by the simulations reasonably well. A critical discussion of deficiencies of this computational engineering model is provided. More >

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