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Govindaraju K, Supreme T, Labunsky DN, Martin N, Del Rosario JM, Washington A, Uwadiale EO, Adjei S, Ladjadj S, Melendrez CV, Lee SJ, Altoe MV, Green A, Riano S, Sainio S, Nordlund D, Wolcott A. Ultrathin Boron Growth onto Nanodiamond Surfaces via Electrophilic Boron Precursors. NANOMATERIALS (BASEL, SWITZERLAND) 2024; 14:1274. [PMID: 39120380 PMCID: PMC11314373 DOI: 10.3390/nano14151274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2024] [Revised: 07/12/2024] [Accepted: 07/25/2024] [Indexed: 08/10/2024]
Abstract
Diamond as a templating substrate is largely unexplored, and the unique properties of diamond, including its large bandgap, thermal conductance, and lack of cytotoxicity, makes it versatile in emergent technologies in medicine and quantum sensing. Surface termination of an inert diamond substrate and its chemical reactivity are key in generating new bonds for nucleation and growth of an overlayer material. Oxidized high-pressure high temperature (HPHT) nanodiamonds (NDs) are largely terminated by alcohols that act as nucleophiles to initiate covalent bond formation when an electrophilic reactant is available. In this work, we demonstrate a templated synthesis of ultrathin boron on ND surfaces using trigonal boron compounds. Boron trichloride (BCl3), boron tribromide (BBr3), and borane (BH3) were found to react with ND substrates at room temperature in inert conditions. BBr3 and BCl3 were highly reactive with the diamond surface, and sheet-like structures were produced and verified with electron microscopy. Surface-sensitive spectroscopies were used to probe the molecular and atomic structure of the ND constructs' surface, and quantification showed the boron shell was less than 1 nm thick after 1-24 h reactions. Observation of the reaction supports a self-terminating mechanism, similar to atomic layer deposition growth, and is likely due to the quenching of alcohols on the diamond surface. X-ray absorption spectroscopy revealed that boron-termination generated midgap electronic states that were originally predicted by density functional theory (DFT) several years ago. DFT also predicted a negative electron surface, which has yet to be confirmed experimentally here. The boron-diamond nanostructures were found to aggregate in dichloromethane and were dispersed in various solvents and characterized with dynamic light scattering for future cell imaging or cancer therapy applications using boron neutron capture therapy (BNCT). The unique templating mechanism based on nucleophilic alcohols and electrophilic trigonal precursors allows for covalent bond formation and will be of interest to researchers using diamond for quantum sensing, additive manufacturing, BNCT, and potentially as an electron emitter.
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Affiliation(s)
- Krishna Govindaraju
- Department of Chemistry, San José State University, 1 Washington Square, San José, CA 95192, USA (T.S.); (J.M.D.R.); (E.O.U.); (S.A.II)
| | - Tyanna Supreme
- Department of Chemistry, San José State University, 1 Washington Square, San José, CA 95192, USA (T.S.); (J.M.D.R.); (E.O.U.); (S.A.II)
| | - Daniel N. Labunsky
- Department of Chemistry, San José State University, 1 Washington Square, San José, CA 95192, USA (T.S.); (J.M.D.R.); (E.O.U.); (S.A.II)
| | - Nicole Martin
- Department of Chemistry, San José State University, 1 Washington Square, San José, CA 95192, USA (T.S.); (J.M.D.R.); (E.O.U.); (S.A.II)
| | - Juan Miguel Del Rosario
- Department of Chemistry, San José State University, 1 Washington Square, San José, CA 95192, USA (T.S.); (J.M.D.R.); (E.O.U.); (S.A.II)
| | - Alana Washington
- Department of Chemistry, San José State University, 1 Washington Square, San José, CA 95192, USA (T.S.); (J.M.D.R.); (E.O.U.); (S.A.II)
| | - Ezhioghode O. Uwadiale
- Department of Chemistry, San José State University, 1 Washington Square, San José, CA 95192, USA (T.S.); (J.M.D.R.); (E.O.U.); (S.A.II)
| | - Solomon Adjei
- Department of Chemistry, San José State University, 1 Washington Square, San José, CA 95192, USA (T.S.); (J.M.D.R.); (E.O.U.); (S.A.II)
| | - Sandra Ladjadj
- Department of Chemistry, San José State University, 1 Washington Square, San José, CA 95192, USA (T.S.); (J.M.D.R.); (E.O.U.); (S.A.II)
| | - Cynthia V. Melendrez
- Department of Chemistry, San José State University, 1 Washington Square, San José, CA 95192, USA (T.S.); (J.M.D.R.); (E.O.U.); (S.A.II)
- Linac Coherent Light Source, SLAC National Accelerator Laboratory, 2575 Sandhill Road, Menlo Park, CA 94025, USA
| | - Sang-Jun Lee
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, 2575 Sandhill Road, Menlo Park, CA 94025, USA (D.N.)
| | - Maria V. Altoe
- The Molecular Foundry, Lawrence Berkeley National Laboratory, 1 Cyclotron Road, Berkeley, CA 94720, USA
| | - Avery Green
- Covalent Metrology, 927 Thompson Pl, Sunnyvale, CA 94085, USA
| | - Sebastian Riano
- Covalent Metrology, 927 Thompson Pl, Sunnyvale, CA 94085, USA
| | - Sami Sainio
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, 2575 Sandhill Road, Menlo Park, CA 94025, USA (D.N.)
- Microelectronics Research Unit, University of Oulu, Pentti Kaiteran Katu 1, Linnanmaa, P.O. Box 4500, 90014 Oulu, Finland
| | - Dennis Nordlund
- Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, 2575 Sandhill Road, Menlo Park, CA 94025, USA (D.N.)
| | - Abraham Wolcott
- Department of Chemistry, San José State University, 1 Washington Square, San José, CA 95192, USA (T.S.); (J.M.D.R.); (E.O.U.); (S.A.II)
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Lan KW, Huang WY, Chiu YL, Hsu FT, Chien YC, Hsiau YY, Wang TW, Keng PY. In vivo investigation of boron-rich nanodrugs for treating triple-negative breast cancers via boron neutron capture therapy. BIOMATERIALS ADVANCES 2023; 155:213699. [PMID: 37979440 DOI: 10.1016/j.bioadv.2023.213699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Revised: 11/03/2023] [Accepted: 11/06/2023] [Indexed: 11/20/2023]
Abstract
Triple-negative breast cancer (TNBC) is characterized by highly proliferative cancer cells and is the only subtype of breast cancer that lacks a targeted therapy. Boron neutron capture therapy (BNCT) is an approach that combines chemotherapy with radiotherapy and can potentially offer beneficial targeted treatment for TNBC patients owing to its unique ability to eradicate cancer cells selectively while minimizing damage to the surrounding healthy cells. Since BNCT relies on specific delivery of a high loading of B10 to the tumor site, there is growing research interest to develop more potent boron-based drugs for BNCT that can overcome the limitations of small-molecule boron compounds. In this study, polyethylene-glycol-coated boron carbon oxynitride nanoparticles (PEG@BCNO) of size 134.2±23.6nm were prepared as a promising drug for BNCT owing to their high boron content and enhanced biocompatibility. The therapeutic efficiency of PEG@BCNO was compared with a state-of-the-art 10BPA boron drug in mice bearing MDA-MB-231 tumor. In the orthotopic mouse model, PEG@BCNO showed higher B10 accumulation in the tumor tissues (6 μg 10B/g tissue compared to 3 μg 10B/g tissue in mice administered B10-enriched 10BPA drug) despite using the naturally occurring 11B/10B boron precursor in the preparation of the BCNO nanoparticles. The in vivo biodistribution of PEG@BCNO in mice bearing MDA-MB-231 showed a tumor/blood ratio of ~3.5, which is comparable to that of the state-of-the-art 10BPA-fructose drug. We further demonstrated that upon neutron irradiation, the mice bearing MDA-MB-231 tumor cells treated with PEG@BCNO and 10BPA showed tumor growth delay times of 9 days and 1 day, respectively, compared to mice in the control group after BNCT. The doubling times (DTs) for mice treated with PEG@BCNO and 10BPA as well as mice in the control group were calculated to be 31.5, 19.8, and 17.7 days, respectively. Immunohistochemical staining for the p53 and caspase-3 antibodies revealed that mice treated with PEG@BCNO showed lower probability of cancer recurrence and greater level of cellular apoptosis than mice treated with 10BPA and mice in the control group. Our study thus demonstrates the potential of pegylated BCNO nanoparticles in effectively inhibiting the growth of TNBC tumors compared to the state-of-the-art boron drug 10BPA.
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Affiliation(s)
- Kai-Wei Lan
- Department of Material Science and Engineering, National Tsing Hua University, Hsinchu City 300, Taiwan, ROC
| | - Wei-Yuan Huang
- Department of Material Science and Engineering, National Tsing Hua University, Hsinchu City 300, Taiwan, ROC
| | - Yi-Lin Chiu
- Department of Material Science and Engineering, National Tsing Hua University, Hsinchu City 300, Taiwan, ROC
| | - Fang-Tzu Hsu
- Department of Material Science and Engineering, National Tsing Hua University, Hsinchu City 300, Taiwan, ROC
| | - Yun-Chen Chien
- Department of Material Science and Engineering, National Tsing Hua University, Hsinchu City 300, Taiwan, ROC
| | - Yong-Yun Hsiau
- College of Engineering, National Tsing Hua University, Hsinchu City 300, Taiwan, ROC
| | - Tzu-Wei Wang
- Department of Material Science and Engineering, National Tsing Hua University, Hsinchu City 300, Taiwan, ROC
| | - Pei Yuin Keng
- Department of Material Science and Engineering, National Tsing Hua University, Hsinchu City 300, Taiwan, ROC.
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3
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Uspenskii SA, Khaptakhanova PA. Boron nanoparticles in chemotherapy and radiotherapy: the synthesis, state-of-the-art, and prospects. Russ Chem Bull 2022. [DOI: 10.1007/s11172-022-3686-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/01/2023]
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4
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Olgun U, Gülfen M, Zeki Yıldız S. Synthesis, characterization and band gap energy of new water soluble fluorescent diethanolamine-boron-subphthalocyanine dye using B nanoparticles and SiB6 microparticles. J Photochem Photobiol A Chem 2022. [DOI: 10.1016/j.jphotochem.2022.114404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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5
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Feldmann C. Large and Small Solids: A Journey Through Inorganic Chemistry. Z Anorg Allg Chem 2022. [DOI: 10.1002/zaac.202200062] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Claus Feldmann
- Institut für Anorganische Chemie Karlsruhe Institute of Technology (KIT) Engesserstraße 15 D-76131 Karlsruhe Germany
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6
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Reiß A, Donsbach C, Feldmann C. Insights into the naphthalenide-driven synthesis and reactivity of zerovalent iron nanoparticles. Dalton Trans 2021; 50:16343-16352. [PMID: 34734594 DOI: 10.1039/d1dt02523f] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The chemical and thermal stability of alkali metal naphthalenides as powerful reducing agents are examined, including the type of alkali metal ([LiNaph] and [NaNaph]), the type of solvent (THF, DME), the temperature (-30 to +50 °C), and the time of storage (0 to 12 hours). The stability and concentration of [LiNaph]/[NaNaph] are quantified via UV-Vis spectroscopy and the Lambert-Beer law. As a result, the solutions of [LiNaph] in THF at low temperature turn out to be most stable. The decomposition can be related to a reductive polymerization of the solvent. The most stable [LiNaph] solutions in THF are exemplarily used to prepare reactive zerovalent iron nanoparticles, 2.3 ± 0.3 nm in size, by reduction of FeCl3 in THF. Finally, the influence of [LiNaph] and/or remains of the starting materials and solvents upon controlled oxidation of the as-prepared Fe(0) nanoparticles with iodine in the presence of selected ligands is evaluated and results in four novel, single-crystalline iron compounds ([FeI2(MeOH)2], ([MePPh3][FeI3(Ph3P)])4·PPh3·6C7H8, [FeI2(PPh3)2], and [FeI2(18-crown-6)]). Accordingly, reactive Fe(0) nanoparticles can be obtained in the liquid phase via [LiNaph]-driven reduction and instantaneously reacted to give new compounds without remains of the initial reduction (e.g. LiCl, naphthalene, and THF).
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Affiliation(s)
- Andreas Reiß
- Institut für Anorganische Chemie, Karlsruhe Institute of Technology (KIT), Engesserstrasse 15, D-76131 Karlsruhe, Germany.
| | - Carsten Donsbach
- Institut für Anorganische Chemie, Karlsruhe Institute of Technology (KIT), Engesserstrasse 15, D-76131 Karlsruhe, Germany.
| | - Claus Feldmann
- Institut für Anorganische Chemie, Karlsruhe Institute of Technology (KIT), Engesserstrasse 15, D-76131 Karlsruhe, Germany.
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7
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Jiang Y, Dincer Yilmaz NE, Barker KP, Baek J, Xia Y, Zheng X. Enhancing Mechanical and Combustion Performance of Boron/Polymer Composites via Boron Particle Functionalization. ACS APPLIED MATERIALS & INTERFACES 2021; 13:28908-28915. [PMID: 34110148 DOI: 10.1021/acsami.1c06727] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
High-speed air-breathing propulsion systems, such as solid fuel ramjets (SFRJ), are important for space exploration and national security. The development of SFRJ requires high-performance solid fuels with excellent mechanical and combustion properties. One of the current solid fuel candidates is composed of high-energy particles (e.g., boron (B)) and polymeric binder (e.g., hydroxyl-terminated polybutadiene (HTPB)). However, the opposite polarities of the boron surface and HTPB lead to poor B particle dispersion and distribution within HTPB. Herein, we demonstrate that the surface functionalization of B particles with nonpolar oleoyl chloride greatly improves the dispersion and distribution of B particles within HTPB. The improved particle dispersion is quantitatively visualized through X-ray computed tomography imaging, and the particle/matrix interaction is evaluated by dynamic mechanical analysis. The surface-functionalized B particles can be uniformly dispersed up to 40 wt % in HTPB, the highest mass loading reported to date. The surface-functionalized B (40 wt %)/HTPB composite exhibits a 63.3% higher Young's modulus, 87.5% higher tensile strength, 16.2% higher toughness, and 16.8% higher heat of combustion than pristine B (40 wt %)/HTPB. The surface functionalization of B particles provides an effective strategy for improving the efficacy and safety of B/HTPB solid fuels for future high-speed air-breathing vehicles.
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Affiliation(s)
- Yue Jiang
- Department of Mechanical Engineering, Stanford University, Stanford, California 94305, United States
| | - Nil Ezgi Dincer Yilmaz
- Department of Mechanical Engineering, Stanford University, Stanford, California 94305, United States
| | - Kayla P Barker
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Jihyun Baek
- Department of Mechanical Engineering, Stanford University, Stanford, California 94305, United States
| | - Yan Xia
- Department of Chemistry, Stanford University, Stanford, California 94305, United States
| | - Xiaolin Zheng
- Department of Mechanical Engineering, Stanford University, Stanford, California 94305, United States
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8
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Agarwal PPK, Jensen D, Chen CH, Rioux RM, Matsoukas T. Surface-Functionalized Boron Nanoparticles with Reduced Oxide Content by Nonthermal Plasma Processing for Nanoenergetic Applications. ACS APPLIED MATERIALS & INTERFACES 2021; 13:6844-6853. [PMID: 33512149 DOI: 10.1021/acsami.0c20825] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The development of an in situ nonthermal plasma technology improved the oxidation and energy release of boron nanoparticles. We reduced the native oxide layer on the surface of boron nanoparticles (70 nm) by treatment in a nonthermal hydrogen plasma, followed by the formation of a passivation barrier by argon plasma-enhanced chemical vapor deposition (PECVD) using perfluorodecalin (C10F18). Both processes occur near room temperature, thus avoiding aggregation and sintering of the nanoparticles. High-resolution transmission electron microscopy (HRTEM), high-angular annular dark-field imaging (HAADF)-scanning TEM (STEM)-energy dispersive spectroscopy (EDS), and X-ray photoelectron spectroscopy (XPS) demonstrated a significant reduction in surface oxide concentration due to hydrogen plasma treatment and the formation of a 2.5 nm thick passivation coating on the surface due to PECVD treatment. These results correlated with the thermal analysis results, which demonstrated a 19% increase in energy release and an increase in metallic boron content after 120 min of hydrogen plasma treatment and 15 min of PECVD of perfluorodecalin. The PECVD coating provided excellent passivation against air and humidity for 60 days. We conclude in situ nonthermal plasma reduction and passivation lead to the amelioration of energy release characteristics and the storage life of boron nanoparticles, benefits conducive for nanoenergetic applications.
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Affiliation(s)
- Prawal P K Agarwal
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Devon Jensen
- Advanced Cooling Technologies, Inc., Lancaster, Pennsylvania 17601, United States
| | - Chien-Hua Chen
- Advanced Cooling Technologies, Inc., Lancaster, Pennsylvania 17601, United States
| | - Robert M Rioux
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
- Department of Chemistry, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
| | - Themis Matsoukas
- Department of Chemical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, United States
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9
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Ghugare AD, Dhanalakshmi R, Vinu R. Preparation and characterization of nanoboron for slurry fuel applications. ADV POWDER TECHNOL 2020. [DOI: 10.1016/j.apt.2020.02.018] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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10
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Zhu Y, Hosmane NS. Liquid-Phase Synthesis of Boron Isocyanates: Precursors to Boron Nanoparticles. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201808352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yinghuai Zhu
- School of Pharmacy and State Key Laboratory of Quality Research in Chinese Medicine; Macau University of Science & Technology; Avenida Wai Long Taipa 999078 Macau
| | - Narayan S Hosmane
- Department of Chemistry and Biochemistry; Northern Illinois University; DeKalb Illinois 60115-2862 USA
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11
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Zhu Y, Hosmane NS. Liquid-Phase Synthesis of Boron Isocyanates: Precursors to Boron Nanoparticles. Angew Chem Int Ed Engl 2018; 57:14888-14890. [PMID: 30218475 DOI: 10.1002/anie.201808352] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2018] [Indexed: 11/08/2022]
Abstract
The practical application of boron isocyanates has been hindered by their extremely high sensitivity and reactivity toward air and moisture. A convenient synthetic method in a suitable liquid media is reported for practical utilization of boron isocyanates. According to NMR studies, the in situ generated boron isocyanates can be stored for at least one month under an inert atmosphere at -20 °C without noticeable decomposition. The boron tri(isocyanate) (B(NCO)3 ) was converted into boron nanoparticles by reduction with hydrogen under mild reaction conditions.
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Affiliation(s)
- Yinghuai Zhu
- School of Pharmacy and State Key Laboratory of Quality Research in Chinese Medicine, Macau University of Science & Technology, Avenida Wai Long, Taipa, 999078, Macau
| | - Narayan S Hosmane
- Department of Chemistry and Biochemistry, Northern Illinois University, DeKalb, Illinois, 60115-2862, USA
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12
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Gunda H, Das SK, Jasuja K. Simple, Green, and High‐Yield Production of Boron‐Based Nanostructures with Diverse Morphologies by Dissolution and Recrystallization of Layered Magnesium Diboride Crystals in Water. Chemphyschem 2018; 19:880-891. [DOI: 10.1002/cphc.201701033] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/21/2017] [Indexed: 11/11/2022]
Affiliation(s)
- Harini Gunda
- Department of Chemical EngineeringIndian Institute of Technology Gandhinagar Palaj Gandhinagar 382355 India
| | - Saroj Kumar Das
- Department of Chemical EngineeringIndian Institute of Technology Gandhinagar Palaj Gandhinagar 382355 India
| | - Kabeer Jasuja
- Department of Chemical EngineeringIndian Institute of Technology Gandhinagar Palaj Gandhinagar 382355 India
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13
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Bhomia J, Sharma J, Sharma RA, Singh Y. Some boron compounds of semicarbazones: antimicrobial activity and precursor for the sol–gel transformation to nanosized boron oxide. NEW J CHEM 2018. [DOI: 10.1039/c8nj00683k] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Biologically active boron Schiff base compounds: precursors for the low temperature synthesis of B2O3 and B7O.
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Affiliation(s)
- Jyoti Bhomia
- Department of Chemistry
- University of Rajasthan
- Jaipur
- India
| | - Jyoti Sharma
- Department of Chemistry
- University of Rajasthan
- Jaipur
- India
| | | | - Yashpal Singh
- Department of Chemistry
- University of Rajasthan
- Jaipur
- India
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Schöttle C, Rudel S, Popescu R, Gerthsen D, Kraus F, Feldmann C. Nanosized Gadolinium and Uranium-Two Representatives of High-Reactivity Lanthanide and Actinide Metal Nanoparticles. ACS OMEGA 2017; 2:9144-9149. [PMID: 31457432 PMCID: PMC6645660 DOI: 10.1021/acsomega.7b01442] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/28/2017] [Accepted: 11/28/2017] [Indexed: 05/18/2023]
Abstract
Gadolinium (Gd0) and uranium (U0) nanoparticles are prepared via lithium naphthalenide ([LiNaph])-driven reduction in tetrahydrofuran (THF) using GdCl3 and UCl4, respectively, as low-cost starting materials. The as-prepared Gd0 and U0 suspensions are colloidally stable and contain metal nanoparticles with diameters of 2.5 ± 0.7 nm (Gd0) and 2.0 ± 0.5 nm (U0). Whereas THF suspensions are chemically stable under inert conditions (Ar and vacuum), nanoparticulate powder samples show high reactivity in contact with, for example, oxygen, moisture, alcohols, or halogens. Such small and highly reactive Gd0 and U0 nanoparticles are first prepared via a dependable liquid-phase synthesis and stand as representatives for further nanosized lanthanides and actinides.
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Affiliation(s)
- Christian Schöttle
- Institut
für Anorganische Chemie, Karlsruhe
Institute of Technology (KIT), Engesserstraße 15, 76131 Karlsruhe, Germany
| | - Stefan Rudel
- Fachbereich
Chemie, University of Marburg, Hans-Meerwein-Straße 4, 35032 Marburg, Germany
| | - Radian Popescu
- Laboratorium
für Elektronenmikroskopie, Karlsruhe
Institute of Technology (KIT), Engesserstraße 7, 76131 Karlsruhe, Germany
| | - Dagmar Gerthsen
- Laboratorium
für Elektronenmikroskopie, Karlsruhe
Institute of Technology (KIT), Engesserstraße 7, 76131 Karlsruhe, Germany
| | - Florian Kraus
- Fachbereich
Chemie, University of Marburg, Hans-Meerwein-Straße 4, 35032 Marburg, Germany
- E-mail: . Phone: +49-6421-28-26668. Fax: +49-6421-28-25669 (F.K.)
| | - Claus Feldmann
- Institut
für Anorganische Chemie, Karlsruhe
Institute of Technology (KIT), Engesserstraße 15, 76131 Karlsruhe, Germany
- E-mail: . Phone: +49-721-608-42855. Fax: +49-721-608-47021 (C.F.)
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15
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Tillard M, M'Rabet F, Rottner B, Charnay C. Accordion-shaped 10B nanostructures by sonication-assisted direct oxidation pathway for neutron sensors. NEW J CHEM 2017. [DOI: 10.1039/c6nj03069f] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Boron nanomaterials prepared by direct oxidation of a LixB alloy display unusual morphology and good efficiency in neutron detection.
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Affiliation(s)
- Monique Tillard
- Institut Charles Gerhardt Montpellier (ICGM) CNRS
- Université de Montpellier
- Montpellier
- France
| | - Fatima M'Rabet
- Institut Charles Gerhardt Montpellier (ICGM) CNRS
- Université de Montpellier
- Montpellier
- France
- Direction Technique et Innovation
| | - Bernard Rottner
- Direction Technique et Innovation
- Onet Technologies
- 13258 Marseille Cedex 09
- France
| | - Clarence Charnay
- Institut Charles Gerhardt Montpellier (ICGM) CNRS
- Université de Montpellier
- Montpellier
- France
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16
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Schöttle C, Bockstaller P, Popescu R, Gerthsen D, Feldmann C. Sodium-Naphthalenide-Driven Synthesis of Base-Metal Nanoparticles and Follow-up Reactions. Angew Chem Int Ed Engl 2015. [DOI: 10.1002/ange.201503269] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
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17
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Schöttle C, Bockstaller P, Popescu R, Gerthsen D, Feldmann C. Sodium-Naphthalenide-Driven Synthesis of Base-Metal Nanoparticles and Follow-up Reactions. Angew Chem Int Ed Engl 2015; 54:9866-70. [PMID: 26190645 DOI: 10.1002/anie.201503269] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2015] [Indexed: 01/21/2023]
Abstract
Mo(0), W(0), Fe(0), Ru(0), Re(0), and Zn(0) nanoparticles—essentially base metals—are prepared as a general strategy by a sodium naphthalenide ([NaNaph])-driven reduction of simple metal chlorides in ethers (1,2-dimethoxyethane (DME), tetrahydrofuran (THF)). All the nanoparticles have diameters ≤10 nm, and they can be obtained either as powder samples or long-term stable suspensions. Direct follow-up reactions (e.g., Mo(0)+S8, FeCl3+AsCl3, ReCl5+MoCl5), moreover, allow the preparation of MoS2, FeAs2, or Re4Mo nanoparticles of similar size as the pristine metals (≤10 nm).
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Affiliation(s)
- Christian Schöttle
- Institut für Anorganische Chemie, Karlsruhe Institute of Technology (KIT), Engesserstrasse 15, 76131 Karlsruhe (Germany)
| | - Pascal Bockstaller
- Laboratorium für Elektronenmikroskopie, Karlsruhe Institute of Technology (KIT), Engesserstrasse 7, 76131 Karlsruhe (Germany)
| | - Radian Popescu
- Laboratorium für Elektronenmikroskopie, Karlsruhe Institute of Technology (KIT), Engesserstrasse 7, 76131 Karlsruhe (Germany)
| | - Dagmar Gerthsen
- Laboratorium für Elektronenmikroskopie, Karlsruhe Institute of Technology (KIT), Engesserstrasse 7, 76131 Karlsruhe (Germany)
| | - Claus Feldmann
- Institut für Anorganische Chemie, Karlsruhe Institute of Technology (KIT), Engesserstrasse 15, 76131 Karlsruhe (Germany).
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Jung HJ, Sohn Y, Sung HG, Hyun HS, Shin WG. Physicochemical properties of ball milled boron particles: Dry vs. wet ball milling process. POWDER TECHNOL 2015. [DOI: 10.1016/j.powtec.2014.03.058] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Tang S, Zhao H. Glymes as Versatile Solvents for Chemical Reactions and Processes: from the Laboratory to Industry. RSC Adv 2014; 4:11251-11287. [PMID: 24729866 PMCID: PMC3981120 DOI: 10.1039/c3ra47191h] [Citation(s) in RCA: 92] [Impact Index Per Article: 9.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Glymes, also known as glycol diethers, are saturated non-cyclic polyethers containing no other functional groups. Most glymes are usually less volatile and less toxic than common laboratory organic solvents; in this context, they are more environmentally benign solvents. However, it is also important to point out that some glymes could cause long-term reproductive and developmental damages despite their low acute toxicities. Glymes have both hydrophilic and hydrophobic characters that common organic solvents are lack of. In addition, they are usually thermally and chemically stable, and can even form complexes with ions. Therefore, glymes are found in a broad range of laboratory applications including organic synthesis, electrochemistry, biocatalysis, materials, and Chemical Vapor Deposition (CVD), etc. In addition, glyme are used in numerous industrial applications, such as cleaning products, inks, adhesives and coatings, batteries and electronics, absorption refrigeration and heat pumps, as well as pharmaceutical formulations, etc. However, there is a lack of comprehensive and critical review on this attractive subject. This review aims to accomplish this task by providing an in-depth understanding of glymes' physicochemical properties, toxicity and major applications.
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Affiliation(s)
- Shaokun Tang
- Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering & Technology, Tianjin University, Tianjin 300072, China
| | - Hua Zhao
- Department of Chemistry and Forensic Science, Savannah State University, Savannah, GA 31404, USA
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Clingerman DJ, Kennedy RD, Mondloch JE, Sarjeant AA, Hupp JT, Farha OK, Mirkin CA. An exceptionally high boron content supramolecular cuboctahedron. Chem Commun (Camb) 2013; 49:11485-7. [DOI: 10.1039/c3cc44173c] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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Calabrese G, Nesnas JJ, Barbu E, Fatouros D, Tsibouklis J. The formulation of polyhedral boranes for the boron neutron capture therapy of cancer. Drug Discov Today 2011; 17:153-9. [PMID: 21978988 DOI: 10.1016/j.drudis.2011.09.014] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2011] [Revised: 09/14/2011] [Accepted: 09/23/2011] [Indexed: 11/28/2022]
Abstract
The early promise of boron neutron capture therapy as a method for the treatment of cancer has been inhibited by the inherent toxicity associated with therapeutically useful doses of ¹⁰B-containing pharmacophores, the need for target-tissue specificity and the challenges imposed by biological barriers. Although developments in the synthetic chemistry of polyhedral boranes have addressed issues of toxicity to a considerable extent, the optimisation of the transport and the delivery of boronated agents to the site of action--the subject of this review--is a challenge that is addressed by the development of innovative formulation strategies.
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Affiliation(s)
- Gianpiero Calabrese
- School of Pharmacy and Chemistry, Kingston University, Kingston-upon Thames KT1 2EE, UK.
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Brozek EM, Zharov I. Internal Functionalization and Surface Modification of Vinylsilsesquioxane Nanoparticles. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2010; 21:1451-1456. [PMID: 20046982 PMCID: PMC2699302 DOI: 10.1021/cm801894w] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The interior of 237 nm spherical vinylsilsesquioxane nanoparticles has been covalently modified and their surface functionalized under mild conditions to yield a novel type of hybrid silsesquioxane nanoparticles. Data obtained from thermogravimetric and elemental analysis show that the vinyl groups inside the nanoparticles can be easily brominated or hydroborated, leading to the nanoparticles containing 59.9 wt% of bromine or 3.6 wt% of boron, respectively. Our results demonstrate that the vinyl groups inside the nanoparticles are highly accessible, which may lead to the preparation of a host of hybrid organosilica nanoparticles with complex structures. We also show that the surface of the brominated and boronated nanoparticles is unhindered for further amination.
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Affiliation(s)
- Eric M. Brozek
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112
| | - Ilya Zharov
- Department of Chemistry, University of Utah, Salt Lake City, Utah 84112
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Nano and dendritic structured carboranes and metallacarboranes: From materials to cancer therapy. J Organomet Chem 2009. [DOI: 10.1016/j.jorganchem.2008.11.059] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Bellott BJ, Noh W, Nuzzo RG, Girolami GS. Nanoenergetic materials: boron nanoparticles from the pyrolysis of decaborane and their functionalisation. Chem Commun (Camb) 2009:3214-5. [DOI: 10.1039/b902371b] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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