1
|
AbouAitah K, Abdelaziz AM, Higazy IM, Swiderska-Sroda A, Hassan AME, Shaker OG, Szałaj U, Stobinski L, Malolepszy A, Lojkowski W. Functionalized Carbon Nanotubes for Delivery of Ferulic Acid and Diosgenin Anticancer Natural Agents. ACS Appl Bio Mater 2024; 7:791-811. [PMID: 38253026 PMCID: PMC10880110 DOI: 10.1021/acsabm.3c00700] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2023] [Revised: 12/22/2023] [Accepted: 01/03/2024] [Indexed: 01/24/2024]
Abstract
It was investigated whether loading multi-wall carbon nanotubes (CNTs) with two natural anticancer agents: ferulic acid (FUA) and diosgenin (DGN), may enhance the anticancer effect of these drugs. The CNTs were functionalized with carboxylic acid (CNTCOOH) or amine (CNTNH2), loaded with the above pro-drugs, as well as both combined and coated with chitosan or chitosan-stearic acid. Following physicochemical characterization, the drug-loading properties and kinetics of the drug's release were investigated. Their effects on normal human skin fibroblasts and MCF-7 breast carcinoma cells, HepG2 hepatocellular carcinoma cells, and A549 non-small-cell lung cancer cells were evaluated in vitro. Their actions at the molecular level were evaluated by assessing the expression of lncRNAs (HULC, HOTAIR, CCAT-2, H19, and HOTTIP), microRNAs (mir-21, mir-92, mir-145, and mir-181a), and proteins (TGF-β and E-cadherin) in HepG2 cells. The release of both pro-drugs depended on the glutathione concentration, coating, and functionalization. Release occurred in two stages: a no-burst/zero-order release followed by a sustained release best fitted to Korsmeyer-Peppas kinetics. The combined nanoformulation cancer inhibition effect on HepG2 cancer cells was more pronounced than for A549 and MCF7 cells. The combined nanoformulations had an additive impact followed by a synergistic effect, with antagonism demonstrated at high concentrations. The nanoformulation coated with chitosan and stearic acid was particularly successful in targeting HepG2 cells and inducing apoptosis. The CNT functionalized with carboxylic acid (CNTCOOH), loaded with both FUA and DGN, and coated with chitosan-stearic acid inhibited the expression of lncRNAs and modulated both microRNAs and proteins. Thus, nanoformulations composed of functionalized CNTs dual-loaded with FUA and DGN and coated with chitosan-stearic acid are a promising drug delivery system that enhances the activity of natural pro-drugs.
Collapse
Affiliation(s)
- Khaled AbouAitah
- Medicinal
and Aromatic Plants Research Department, Pharmaceutical and Drug Industries
Research Institute, National Research Centre
(NRC), 33 El-Behouth Street, Dokki, Giza 12622, Egypt
| | - Ahmed M. Abdelaziz
- Supplementary
General Sciences, Future University, End of 90th Street, Fifth Settlement, New Cairo 11835, Egypt
| | - Imane M. Higazy
- Department
of Pharmaceutical Technology, Pharmaceutical and Drug Industries Research
Institute, National Research Centre (NRC), 33 El-Behouth Street, Dokki, Giza 12622, Egypt
| | - Anna Swiderska-Sroda
- Institute
of High Pressure Physics, Polish Academy
of Sciences, Sokolowska
29/37, 01-142 Warsaw, Poland
| | - Abeer M. E. Hassan
- Analytical
Chemistry Department, Faculty of Pharmacy, October 6 University, Giza 12585, Egypt
| | - Olfat G. Shaker
- Medical
Biochemistry
and Molecular Biology Department, Faculty of Medicine, Cairo University, Cairo 11511, Egypt
| | - Urszula Szałaj
- Institute
of High Pressure Physics, Polish Academy
of Sciences, Sokolowska
29/37, 01-142 Warsaw, Poland
- Faculty
of Materials Engineering, Warsaw University
of Technology, Wołoska 41, 02-507 Warsaw, Poland
| | - Leszek Stobinski
- NANOMATPL
Ltd., 14/38 Wyszogrodzka
Street, Warsaw 03-337, Poland
- Faculty
of Chemical and Process Engineering, Warsaw
University of Technology, 1 Warynskiego Street, 00-645 Warsaw, Poland
| | - Artur Malolepszy
- Faculty
of Chemical and Process Engineering, Warsaw
University of Technology, 1 Warynskiego Street, 00-645 Warsaw, Poland
| | - Witold Lojkowski
- Institute
of High Pressure Physics, Polish Academy
of Sciences, Sokolowska
29/37, 01-142 Warsaw, Poland
| |
Collapse
|
2
|
Tseng KH, Huang CH, Ku HC, Tien DC, Stobinski L. Parameter configuration of the electrical spark discharge method for preparing graphene copper nanocomposite colloids and the analysis of product characteristics. RSC Adv 2022; 12:12978-12982. [PMID: 35497012 PMCID: PMC9049821 DOI: 10.1039/d2ra01456d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2022] [Accepted: 04/20/2022] [Indexed: 11/21/2022] Open
Abstract
The electrical spark discharge method was used to prepare graphene copper nanocomposite (GNS-Cu) colloids under normal temperature and pressure. Cu and graphite were mixed in deionized water at a Cu : C mass ratio of 9 : 1 (99% purity), and the mixture was used to produce composite rods as the electrodes for spark machining. An electrical discharge machine with five settings of pulse cycle turn-on and turn-off times, namely 10-10, 30-30, 50-50, 70-70, and 90-90 μs, was used to prepare five different types of GNS-Cu colloids. The ultraviolet-visible spectroscopy results revealed that the highest absorbance (2.441) was observed when the turn-on and turn-off times were 30-30 μs, indicating that this configuration was most efficient for preparing GNS-Cu colloids. Transmission electron microscopy and X-ray diffraction analysis were also conducted to examine the surface characteristics and crystal structure of GNS-Cu colloids. The transmission electron microscopy results revealed that Cu particles in the GNS-Cu colloids were located within or on top of graphene sheets. The Cu particle size varied with the discharge efficiency, and the lattice spacing of the Cu particles was approximately 0.218 nm. The results of X-ray diffraction analysis revealed that no byproducts were formed from the preparation of GNS-Cu colloids, which had complete crystal structures.
Collapse
Affiliation(s)
- Kuo-Hsiung Tseng
- Department of Electrical Engineering, National Taipei University of Technology Taipei 10608 Taiwan
| | - Chang-Hsiang Huang
- Department of Electrical Engineering, National Taipei University of Technology Taipei 10608 Taiwan
| | - Hsueh-Chien Ku
- Department of Electrical Engineering, National Taipei University of Technology Taipei 10608 Taiwan
| | - Der-Chi Tien
- Department of Electrical Engineering, National Taipei University of Technology Taipei 10608 Taiwan
| | - Leszek Stobinski
- Faculty of Chemical and Process Engineering, Warsaw University of Technology Waryńskiego 1 00-645 Warsaw Poland
| |
Collapse
|
3
|
Tseng KH, Lin WJ, Chung MY, Tien DC, Stobinski L. Preparing Cuprous Iodide Nanocolloid by the Electrical Spark Discharge Method. J CLUST SCI 2021. [DOI: 10.1007/s10876-021-02127-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
4
|
Zakrzewska B, Dembinska B, Zoladek S, Rutkowska IA, Żak J, Stobinski L, Małolepszy A, Negro E, Di Noto V, Kulesza PJ, Miecznikowski K. Prussian-blue-modified reduced-graphene-oxide as active support for Pt nanoparticles during oxygen electroreduction in acid medium. J Electroanal Chem (Lausanne) 2020. [DOI: 10.1016/j.jelechem.2020.114347] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
5
|
Tseng KH, Lin ZY, Chung MY, Tien DC, Stobinski L. Parameter control and property analysis in the preparation of platinum iodide nanocolloids through the electrical spark discharge method. RSC Adv 2020; 10:30169-30175. [PMID: 35518241 PMCID: PMC9058553 DOI: 10.1039/d0ra04048g] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2020] [Accepted: 08/10/2020] [Indexed: 11/21/2022] Open
Abstract
This study employed the electrical spark discharge method to prepare platinum iodide nanocolloids at normal temperature and pressure. Wires composed of 99.5% platinum were applied as the electrodes, and 250 ppm liquid iodine was employed as the dielectric fluid. An electric discharge machine was applied to generate cyclic direct current pulse power between the electrodes. Five sets of turn-on and turn-off time (T on-T off) parameters, namely 10-10, 30-30, 50-50, 70-70, and 90-90 μs, were implemented to identify the optimal nanocolloid preparation conditions. An ultraviolet-visible spectroscope, a Zetasizer, and a transmission electron microscope were used to examine the nanocolloids' properties. The results revealed that the T on-T off parameter set of 10-10 μs was the most ideal setting for platinum iodide nanocolloid preparation. With this parameter set, the characteristic wavelengths of the nanocolloid were 285 and 350 nm, respectively; its absorbance values were 0.481 and 0.425, respectively; and its zeta potential and particle size were -30.3 mV and 61.88 nm, respectively. This parameter set yielded maximized absorbance, satisfactory suspension stability, and minimized nanoparticle sizes for the nanocolloid.
Collapse
Affiliation(s)
- Kuo-Hsiung Tseng
- Department of Electrical Engineering, National Taipei University of Technology Taiwan Republic of China
| | - Zih-Yuan Lin
- Department of Electrical Engineering, National Taipei University of Technology Taiwan Republic of China
| | - Meng-Yun Chung
- Department of Electrical Engineering, National Taipei University of Technology Taiwan Republic of China
| | - Der-Chi Tien
- Department of Electrical Engineering, National Taipei University of Technology Taiwan Republic of China
| | - Leszek Stobinski
- Materials Chemistry, Warsaw University of Technology Warynskiego 1 00-645 Warsaw Poland
| |
Collapse
|
6
|
Filice S, Mazurkiewicz-Pawlicka M, Malolepszy A, Stobinski L, Kwiatkowski R, Boczkowska A, Gradon L, Scalese S. Sulfonated Pentablock Copolymer Membranes and Graphene Oxide Addition for Efficient Removal of Metal Ions from Water. Nanomaterials (Basel) 2020; 10:E1157. [PMID: 32545577 PMCID: PMC7353454 DOI: 10.3390/nano10061157] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/29/2020] [Revised: 06/07/2020] [Accepted: 06/09/2020] [Indexed: 01/04/2023]
Abstract
Nowadays heavy metals are among the higher environmental priority pollutants, therefore, the identification of new, effective, reusable and easy-to-handle adsorbent materials able to remove metal ions from water is highly desired. To this aim, in this work for the first time, sulfonated pentablock copolymer (s-PBC, Nexar™) membranes and s-PBC/graphene oxide (GO) nanocomposite membranes were investigated for the removal of heavy metals from water. Membranes were prepared by drop casting and their chemical, structural and morphological properties were characterized using scanning electron microscopy (SEM), Fourier transform infrared (FT-IR) spectroscopy, dynamic mechanical analysis (DMA) and small-angle X-ray scattering (SAXS). The adsorption abilities and adsorption kinetics of both the polymer and the s-PBC/GO nanocomposite were investigated for the removal of different heavy metal ions (Ni2+, Co2+, Cr3+ and Pb2+) from aqueous solutions containing the corresponding metal salts at different concentrations. The investigated s-PBC membrane shows a good efficiency, due to the presence of sulfonic groups that play a fundamental role in the adsorption process of metal ions. Its performance is further enhanced by embedding a very low amount of GO in the polymer allowing an increase by at least three times of the adsorption efficiencies of the polymer itself. This can be ascribed to the higher porosity, higher roughness and higher lamellar distances introduced by GO in the s-PBC membrane, as evidenced by the SEM and SAXS analysis. Both the polymeric materials showed the best performance in removing Pb2+ ions.
Collapse
Affiliation(s)
- Simona Filice
- Istituto per la Microelettronica e Microsistemi, Consiglio Nazionale delle Ricerche (CNR-IMM), Ottava Strada n.5, I-95121 Catania, Italy
| | - Marta Mazurkiewicz-Pawlicka
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, ul. Warynskiego 1, 00-645 Warsaw, Poland; (M.M.-P.); (A.M.); (L.S.); (L.G.)
| | - Artur Malolepszy
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, ul. Warynskiego 1, 00-645 Warsaw, Poland; (M.M.-P.); (A.M.); (L.S.); (L.G.)
| | - Leszek Stobinski
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, ul. Warynskiego 1, 00-645 Warsaw, Poland; (M.M.-P.); (A.M.); (L.S.); (L.G.)
- NANOMATERIALS LS, Wyszogrodzka 14/38, 03-337 Warsaw, Poland
| | - Ryszard Kwiatkowski
- Institute of Textile Engineering and Polymer Materials, University of Bielsko-Biała, Willowa 2, 43-309 Bielsko-Biała, Poland;
| | - Anna Boczkowska
- Faculty of Materials Science and Engineering, Warsaw University of Technology, ul. Woloska 141, 02-507 Warsaw, Poland;
| | - Leon Gradon
- Faculty of Chemical and Process Engineering, Warsaw University of Technology, ul. Warynskiego 1, 00-645 Warsaw, Poland; (M.M.-P.); (A.M.); (L.S.); (L.G.)
| | - Silvia Scalese
- Istituto per la Microelettronica e Microsistemi, Consiglio Nazionale delle Ricerche (CNR-IMM), Ottava Strada n.5, I-95121 Catania, Italy
| |
Collapse
|
7
|
Tseng KH, Lin YS, Lin YC, Tien DC, Stobinski L. Deriving Optimized PID Parameters of Nano-Ag Colloid Prepared by Electrical Spark Discharge Method. Nanomaterials (Basel) 2020; 10:E1091. [PMID: 32492894 PMCID: PMC7353195 DOI: 10.3390/nano10061091] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2020] [Revised: 05/15/2020] [Accepted: 05/27/2020] [Indexed: 11/17/2022]
Abstract
Using the electrical spark discharge method, this study prepared a nano-Ag colloid using self-developed, microelectrical discharge machining equipment. Requiring no additional surfactant, the approach in question can be used at the ambient temperature and pressure. Moreover, this novel physical method of preparation produced no chemical pollution. This study conducted an in-depth investigation to establish the following electrical discharge conditions: gap electrical discharge, short circuits, and open circuits. Short circuits affect system lifespan and cause electrode consumption, resulting in large, non-nanoscale particles. Accordingly, in this study, research for and design of a new logic judgment circuit set was used to determine the short-circuit rate. The Ziegler-Nichols proportional-integral-derivative (PID) method was then adopted to find optimal PID values for reducing the ratio between short-circuit and discharge rates of the system. The particle size, zeta potential, and ultraviolet spectrum of the nano-Ag colloid prepared using the aforementioned method were also analyzed with nanoanalysis equipment. Lastly, the characteristics of nanosized particles were analyzed with a transmission electron microscope. This study found that the lowest ratio between short-circuit rates was obtained (1.77%) when PID parameters were such that Kp was 0.96, Ki was 5.760576, and Kd was 0.039996. For the nano-Ag colloid prepared using the aforementioned PID parameters, the particle size was 3.409 nm, zeta potential was approximately -46.8 mV, absorbance was approximately 0.26, and surface plasmon resonance was 390 nm. Therefore, this study demonstrated that reducing the short-circuit rate can substantially enhance the effectiveness of the preparation and produce an optimal nano-Ag colloid.
Collapse
Affiliation(s)
- Kuo-Hsiung Tseng
- Department of Electrical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan; (Y.-S.L.); (D.-C.T.)
| | - Yur-Shan Lin
- Department of Electrical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan; (Y.-S.L.); (D.-C.T.)
| | - Yun-Chung Lin
- Power Department, Quanta Computer lnc., Taipei 111, Taiwan;
| | - Der-Chi Tien
- Department of Electrical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan; (Y.-S.L.); (D.-C.T.)
| | - Leszek Stobinski
- Materials Chemistry, Warsaw University of Technology, Warynskiego 1, 00-645 Warsaw, Poland;
| |
Collapse
|
8
|
Zuchowska A, Jastrzebska E, Mazurkiewicz-Pawlicka M, Malolepszy A, Stobinski L, Trzaskowski M, Brzozka Z. Well-defined Graphene Oxide as a Potential Component in Lung Cancer Therapy. Curr Cancer Drug Targets 2019; 20:47-58. [PMID: 31736445 DOI: 10.2174/1568009619666191021113807] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2019] [Revised: 08/27/2019] [Accepted: 09/19/2019] [Indexed: 11/22/2022]
Abstract
BACKGROUND Graphene oxide (GO) has unique physical and chemical properties that can be used in anticancer therapy - especially as a drug carrier. Graphene oxide, due to the presence of several hybrid layers of carbon atoms (sp2), has a large surface for highly efficient drug loading. In addition, GO with a large number of carboxyl, hydroxyl and epoxy groups on its surface, can charge various drug molecules through covalent bonds, hydrophobic interactions, hydrogen bonds and electrostatic interactions. OBJECTIVE The aim of our work was to evaluate the possibility of future use of graphene oxide as an anticancer drug carrier. METHODS In this paper, we present GO synthesis and characterization, as well as a study of its biological properties. The cytotoxic effect of well-defined graphene oxide was tested on both carcinoma and non-malignant cells isolated from the same organ, which is not often presented in the literature. RESULTS The performed research confirmed that GO in high concentrations (> 300 µgmL-1) selectively decreased the viability of cancer cell line. Additionally, we showed that the GO flakes have a high affinity to cancer cell nucleus which influences their metabolism (inhibition of cancer cell proliferation). Moreover, we have proved that GO in high concentrations can cause cell membrane damage and generate reactive oxygen species on a low level mainly in cancer cells. CONCLUSION The proposed GO could be useful in anticancer therapy. A high concentration of GO selectively causes the death of tumor cells, whereas GO with low concentration could be a potential material for anticancer drug loading.
Collapse
Affiliation(s)
- Agnieszka Zuchowska
- Chair of Medical Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Warsaw, Poland
| | - Elzbieta Jastrzebska
- Chair of Medical Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Warsaw, Poland
| | - Marta Mazurkiewicz-Pawlicka
- Graphene Laboratory of Warsaw University of Technology, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Artur Malolepszy
- Graphene Laboratory of Warsaw University of Technology, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Leszek Stobinski
- Graphene Laboratory of Warsaw University of Technology, Faculty of Chemical and Process Engineering, Warsaw University of Technology, Warsaw, Poland
| | - Maciej Trzaskowski
- Centre for Advanced Materials and Technologies CEZAMAT, Warsaw University of Technology, Warsaw, Poland
| | - Zbigniew Brzozka
- Chair of Medical Biotechnology, Faculty of Chemistry, Warsaw University of Technology, Warsaw, Poland
| |
Collapse
|
9
|
Tseng KH, Ku HC, Tien DC, Stobinski L. Novel Preparation of Reduced Graphene Oxide-Silver Complex using an Electrical Spark Discharge Method. Nanomaterials (Basel) 2019; 9:nano9070979. [PMID: 31284501 PMCID: PMC6669528 DOI: 10.3390/nano9070979] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/07/2019] [Revised: 06/30/2019] [Accepted: 07/02/2019] [Indexed: 11/16/2022]
Abstract
This study used an electrical discharge machine (EDM) to perform an electrical spark discharge method (ESDM), which is a new approach for reducing graphene oxide (GO) at normal temperature and pressure, without using chemical substances. A silver (Ag) electrode generates high temperature and high energy during gap discharge. Ag atoms and Ag nanoparticles (AgNP) are suspended in GO, and ionization generates charged Ag+ ions in the Ag plasma with a strong reducing property, thereby carrying O away from GO. A large flake-like structure of GO was simultaneously pyrolyzed to a small flake-like structure of reduced graphene oxide (rGO). When Ag was used as an electrode, GO was reduced to rGO and the exfoliated AgNP surface was coated with rGO, thus forming an rGOAg complex. Consequently, suspensibility and dispersion were enhanced.
Collapse
Affiliation(s)
- Kuo-Hsiung Tseng
- Department of Electrical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan.
| | - Hsueh-Chien Ku
- Department of Electrical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Der-Chi Tien
- Department of Electrical Engineering, National Taipei University of Technology, Taipei 10608, Taiwan
| | - Leszek Stobinski
- Materials Chemistry, Warsaw University of Technology, Warynskiego 1, 00-645 Warsaw, Poland
| |
Collapse
|
10
|
Tseng KH, Chou CJ, Shih SH, Tien DC, Chang CY, Stobinski L. Preparation of Graphene Through EDM Interfered with CO2. J CLUST SCI 2018. [DOI: 10.1007/s10876-018-1367-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
|
11
|
Tseng KH, Lin YH, Tien DC, Chang CY, Stobinski L. The Suspension of Platinum Nanoparticles Prepared by Electric Discharge Method in Ethanol. J CLUST SCI 2018. [DOI: 10.1007/s10876-018-1386-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
|
12
|
Lesiak B, Zemek J, Jiricek P, Malolepszy A, Stobinski L. Influence of the preparation conditions of Pd-ZrO2
and AuPd-ZrO2
nanoparticle-decorated functionalised MWCNTs: Electron spectroscopy study aided with the QUASES. SURF INTERFACE ANAL 2017. [DOI: 10.1002/sia.6290] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- B. Lesiak
- Institute of Physical Chemistry; Polish Academy of Sciences; Kasprzaka 44/52 01-224 Warsaw Poland
| | - J. Zemek
- Institute of Physics; Academy of Sciences of the Czech Republic; 162-53 Prague 6 Cukrovarnicka 10 Czech Republic
| | - P. Jiricek
- Institute of Physics; Academy of Sciences of the Czech Republic; 162-53 Prague 6 Cukrovarnicka 10 Czech Republic
| | - A. Malolepszy
- Faculty of Chemical and Process Engineering; Warsaw University of Technology; Waryńskiego 1 00-645 Warsaw Poland
| | - L. Stobinski
- Faculty of Chemical and Process Engineering; Warsaw University of Technology; Waryńskiego 1 00-645 Warsaw Poland
| |
Collapse
|
13
|
Bidabadi AS, Varin RA, Polanski M, Stobinski L. Mechano-chemical activation of the (3LiBH4 + TiF3) system, its dehydrogenation behavior and the effects of ultrafine filamentary Ni and graphene additives. RSC Adv 2016. [DOI: 10.1039/c6ra21539d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Ball milling (BM) for 5 h reduced the thermal release of B2H6 to nearly zero.
Collapse
Affiliation(s)
- Amirreza Shirani Bidabadi
- Department of Mechanical and Mechatronics Engineering
- Waterloo Institute for Nanotechnology
- University of Waterloo
- Waterloo
- Canada N2L 3G1
| | - Robert A. Varin
- Department of Mechanical and Mechatronics Engineering
- Waterloo Institute for Nanotechnology
- University of Waterloo
- Waterloo
- Canada N2L 3G1
| | - Marek Polanski
- Faculty of Advanced Technology and Chemistry
- Military University of Technology
- 00-908 Warsaw
- Poland
| | - Leszek Stobinski
- Faculty of Materials Science and Engineering
- Graphene Laboratory
- Warsaw University of Technology
- 00-645 Warsaw
- Poland
| |
Collapse
|
14
|
Kulesza PJ, Pieta IS, Rutkowska IA, Wadas A, Marks D, Klak K, Stobinski L, Cox JA. Electrocatalytic oxidation of small organic molecules in acid medium: enhancement of activity of noble metal nanoparticles and their alloys by supporting or modifying them with metal oxides. Electrochim Acta 2013; 110:474-483. [PMID: 24443590 DOI: 10.1016/j.electacta.2013.06.052] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Different approaches to enhancement of electrocatalytic activity of noble metal nanoparticles during oxidation of small organic molecules (namely potential fuels for low-temperature fuel cells such as methanol, ethanol and formic acid) are described. A physical approach to the increase of activity of catalytic nanoparticles (e.g. platinum or palladium) involves nanostructuring to obtain highly dispersed systems of high surface area. Recently, the feasibility of enhancing activity of noble metal systems through the formation of bimetallic (e.g. PtRu, PtSn, and PdAu) or even more complex (e.g. PtRuW, PtRuSn) alloys has been demonstrated. In addition to possible changes in the electronic properties of alloys, specific interactions between metals as well as chemical reactivity of the added components have been postulated. We address and emphasize here the possibility of utilization of noble metal and alloyed nanoparticles supported on robust but reactive high surface area metal oxides (e.g. WO3, MoO3, TiO2, ZrO2, V2O5, and CeO2) in oxidative electrocatalysis. This paper concerns the way in which certain inorganic oxides and oxo species can act effectively as supports for noble metal nanoparticles or their alloys during electrocatalytic oxidation of hydrogen and representative organic fuels. Among important issues are possible changes in the morphology and dispersion, as well as specific interactions leading to the improved chemisorptive and catalytic properties in addition to the feasibility of long time operation of the discussed systems.
Collapse
Affiliation(s)
- Pawel J Kulesza
- Department of Chemistry and Center for Biological Chemical Sciences, University of Warsaw, Pasteura 1, PL-02-093 Warsaw, Poland
| | - Izabela S Pieta
- Department of Chemistry and Center for Biological Chemical Sciences, University of Warsaw, Pasteura 1, PL-02-093 Warsaw, Poland
| | - Iwona A Rutkowska
- Department of Chemistry and Center for Biological Chemical Sciences, University of Warsaw, Pasteura 1, PL-02-093 Warsaw, Poland
| | - Anna Wadas
- Department of Chemistry and Center for Biological Chemical Sciences, University of Warsaw, Pasteura 1, PL-02-093 Warsaw, Poland
| | - Diana Marks
- Department of Chemistry and Center for Biological Chemical Sciences, University of Warsaw, Pasteura 1, PL-02-093 Warsaw, Poland
| | - Karolina Klak
- Department of Chemistry and Center for Biological Chemical Sciences, University of Warsaw, Pasteura 1, PL-02-093 Warsaw, Poland
| | - Leszek Stobinski
- Department of Chemistry and Center for Biological Chemical Sciences, University of Warsaw, Pasteura 1, PL-02-093 Warsaw, Poland
| | - James A Cox
- Department of Chemistry and Biochemistry, Miami University, Oxford, OH 45056, USA
| |
Collapse
|
15
|
Barzegar H, Nitze F, Sharifi T, Ramstedt M, Tai CW, Malolepszy A, Stobinski L, Wågberg T. Simple Dip-Coating Process for the Synthesis of Small Diameter Single-Walled Carbon Nanotubes-Effect of Catalyst Composition and Catalyst Particle Size on Chirality and Diameter. J Phys Chem C Nanomater Interfaces 2012; 116:12232-12239. [PMID: 22741029 PMCID: PMC3381010 DOI: 10.1021/jp211064c] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/16/2011] [Revised: 05/07/2012] [Indexed: 06/01/2023]
Abstract
We report on a dip-coating method to prepare catalyst particles (mixture of iron and cobalt) with a controlled diameter distribution on silicon wafer substrates by changing the solution's concentration and withdrawal velocity. The size and distribution of the prepared catalyst particles were analyzed by atomic force microscopy. Carbon nanotubes were grown by chemical vapor deposition on the substrates with the prepared catalyst particles. By decreasing the catalyst particle size to below 10 nm, the growth of carbon nanotubes can be tuned from few-walled carbon nanotubes, with homogeneous diameter, to highly pure single-walled carbon nanotubes. Analysis of the Raman radial breathing modes, using three different Raman excitation wavelengths (488, 633, and 785 nm), showed a relatively broad diameter distribution (0.8-1.4 nm) of single-walled carbon nanotubes with different chiralities. However, by changing the composition of the catalyst particles while maintaining the growth parameters, the chiralities of single-walled carbon nanotubes were reduced to mainly four different types, (12, 1), (12, 0), (8, 5), and (7, 5), accounting for about 70% of all nanotubes.
Collapse
Affiliation(s)
- Hamid
R. Barzegar
- Department
of Physics and Department of Chemistry, Umeå University, S-901 87 Umeå, Sweden
| | - Florian Nitze
- Department
of Physics and Department of Chemistry, Umeå University, S-901 87 Umeå, Sweden
| | - Tiva Sharifi
- Department
of Physics and Department of Chemistry, Umeå University, S-901 87 Umeå, Sweden
| | - Madeleine Ramstedt
- Department
of Physics and Department of Chemistry, Umeå University, S-901 87 Umeå, Sweden
| | - Cheuk W. Tai
- Department of Materials and Environmental
Chemistry and Berzelii Center EXSELENT on Porous Materials, Arrhenius
Laboratory, Stockholm University, S-106
91, Stockholm, Sweden
| | - Artur Malolepszy
- Faculty
of Materials Science
and Engineering, Warsaw University of Technology, 02-507 Warsaw, Poland
| | - Leszek Stobinski
- Institute
of Physical Chemistry, Polish
Academy of Sciences Kasprzaka 48/52, 01-224 Warsaw, Poland
| | - Thomas Wågberg
- Department
of Physics and Department of Chemistry, Umeå University, S-901 87 Umeå, Sweden
| |
Collapse
|
16
|
Barzegar HR, Nitze F, Malolepszy A, Stobinski L, Tai CW, Wågberg T. Water assisted growth of C₆₀ rods and tubes by liquid-liquid interfacial precipitation method. Molecules 2012; 17:6840-53. [PMID: 22669040 PMCID: PMC6268927 DOI: 10.3390/molecules17066840] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2012] [Revised: 05/08/2012] [Accepted: 05/21/2012] [Indexed: 11/16/2022] Open
Abstract
C₆₀ nanorods with hexagonal cross sections are grown using a static liquid-liquid interfacial precipitation method in a system of C₆₀/m-dichlorobenzene solution and ethanol. Adding water to the ethanol phase leads instead to C₆₀ tubes where both length and diameter of the C₆₀ tubes can be controlled by the water content in the ethanol. Based on our observations we find that the diameter of the rods/tubes strongly depends on the nucleation step. We propose a liquid-liquid interface growth model of C₆₀ rods and tubes based on the diffusion rate of the good C₆₀ containing solvent into the poor solvent as well as on the size of the crystal seeds formed at the interface between the two solvents. The grown rods and tubes exhibit a hexagonal solvate crystal structure with m-dichlorobenzene solvent molecules incorporated into the crystal structure, independent of the water content. An annealing step at 200 °C at a pressure < 1 kPa transforms the grown structures into a solvent-free face centered cubic structure. Both the hexagonal and the face centered cubic structures are very stable and neither morphology nor structure shows any signs of degradation after three months of storage.
Collapse
Affiliation(s)
- Hamid Reza Barzegar
- Department of Physics, Umea University, Umea SE-901 87, Sweden; (H.R.B.); (F.N.)
| | - Florian Nitze
- Department of Physics, Umea University, Umea SE-901 87, Sweden; (H.R.B.); (F.N.)
| | - Artur Malolepszy
- Faculty of Materials Science and Engineering, Warsaw University of Technology, Warsaw 02-507, Poland;
| | - Leszek Stobinski
- Institute of Physical Chemistry, Polish Academy of Sciences Kasprzaka 48/52, 01-224 Warsaw, Poland;
| | - Cheuk-Wai Tai
- Department of Materials and Environmental Chemistry and Berzelii Center EXSELENT on Porous Materials, Arrhenius Laboratory, Stockholm University, Stockholm S-106-91, Sweden;
| | - Thomas Wågberg
- Department of Physics, Umea University, Umea SE-901 87, Sweden; (H.R.B.); (F.N.)
- Author to whom correspondence should be addressed; ; Tel.: +46-90-786-5993; Fax: +46-90-786-6673
| |
Collapse
|
17
|
Nitze F, Mazurkiewicz M, Malolepszy A, Mikolajczuk A, Kędzierzawski P, Tai CW, Hu G, Kurzydłowski KJ, Stobinski L, Borodzinski A, Wågberg T. Synthesis of palladium nanoparticles decorated helical carbon nanofiber as highly active anodic catalyst for direct formic acid fuel cells. Electrochim Acta 2012. [DOI: 10.1016/j.electacta.2011.12.104] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|
18
|
Tseng CL, Shih IL, Stobinski L, Lin FH. Gadolinium hexanedione nanoparticles for stem cell labeling and tracking via magnetic resonance imaging. Biomaterials 2010; 31:5427-35. [PMID: 20400176 DOI: 10.1016/j.biomaterials.2010.03.049] [Citation(s) in RCA: 58] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2010] [Accepted: 03/19/2010] [Indexed: 12/29/2022]
Abstract
The ability to trace transplanted stem cells and monitor their tissue biodistribution is prerequisite to an understanding of cellular migration after transplantation. Therefore, a new magnetic resonance imaging (MRI) contrast agent made of gadolinium hexanedione nanoparticles (GdH-NPs) was developed as a cell tracking agent. The GdH-NPs were fabricated by the microemulsion process. The physical characteristics, biocompatibility, and T1-MRI signal enhancement of these NPs were analyzed and evaluated for stem cell tracking. In this study, the size of the synthesized GdH-NPs was about 140 nm, and it had greater image enhancement ability than commercial gadolinium diethylenetriamine pentaacetic acid (Gd-DTPA). From the biocompability test, we found GdH-NPs were nontoxic for human mesenchymal stem cells (hMSCs). The expression of surface antigens of hMSCs after culture with GdH-NPs was examined, and it showed no difference from the control group. The results of transmission electron microscopy (TEM) imaging for labeled hMSCs showed GdH-NPs were accumulated in the cells by the endocytotic pathway. The accumulation of GdH-NPs in hMSCs was three times higher in comparison to Gd-DTPA. Human MSCs labeled with low concentration of GdH-NPs (10 microg/mL) hold better signals in cellular MR image. We conclude GdH-NPs can be used to label hMSCs in vitro with greater T1 image-enhancing property and without affecting cell quality. Finally, GdH-NPs have great potential as a contrast agent for stem cell tracking by MRI methodology.
Collapse
Affiliation(s)
- Ching-Li Tseng
- Division of Medical Engineering Research, National Health Research Institutes, No.35, Keyan Rd, Zhunan Town, Miaoli County 350, Taiwan, ROC
| | | | | | | |
Collapse
|
19
|
Lemek T, Mazurkiewicz J, Stobinski L, Lin HM, Tomasik P. Non-covalent functionalization of multi-walled carbon nanotubes with organic aromatic compounds. J Nanosci Nanotechnol 2007; 7:3081-3088. [PMID: 18019132 DOI: 10.1166/jnn.2007.667] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Several aromatic compounds derived from benzene by its annelation (naphthalene, anthracene, phenanthrene, pyrene) and exocyclic substitution (e.g., nitrobenzene, dinitrobenzenes, trinitrobenzene, chlorobenzene, N,N-dimethylaniline, and others) and endocyclic substitution (pyridine, quinoline, isoquinoline) efficiently sorbed on multi-walled carbon nanotubes (MWCNTs). Equilibrium constants for the sorption process have been determined. Computations of the energy of formation were performed for surface complexes of those arenes on single-walled carbon nanotubes (SWCNTs). Formation energies of those complexes were correlated against the experimental equilibrium constants. The latter were also correlated against calculated LUMO energy of the arenes. Solely, limited tendencies to the linearity could be observed. The analysis of the results of the correlations indicated that the arenes acting as the charge acceptors formed stronger complexes than arenes with a high electron density in the molecular orbital, for instance, N, N-dimethylaniline. The area of the arene--SWCNT contact was very essential for the complexation. The proximity of the HOMO orbital of SWCNT and LUMO of the arene was another essential factor. Bulky substituents in the arene molecules obscured their efficient contact with SWCNT.
Collapse
Affiliation(s)
- Tadeusz Lemek
- Department of Chemistry, School of Biotechnology, Agricultural University, 31 120 Cracow, Poland
| | | | | | | | | |
Collapse
|
20
|
Abstract
As proven by the UV-VIS, micro-Raman spectroscopies, differential scanning calorimetry, beta-carotene, lycopene, retinoic acid, and retinol adsorbed on the surface of single-walled carbon nanotubes (SWCNT) form electron donor-acceptor (EDA) complexes. The rate of the adsorption of carotenoids is estimated as the rate of decrease in their concentration in solution followed the exponential curve equation. The rate of the adsorption decreased with the chain length of the guest capable sorption on the surface and steric effect of the terminals in the beta-carotene was also essential. Also, increase in the polarity of the functional groups expressed, for instance, in Taft sigma* substituent constants had its impact. The HyperChem 7 followed by Gaussian 03 computations revealed that the inclusion SWCNT-carotenoid complexes were more stable than corresponding surface complexes. In the surface complexes carotenoids acted as donors in respect to SWCNT whereas in the inclusion complexes they were acceptors.
Collapse
Affiliation(s)
- Leszek Stobinski
- Department of Materials Engineering, Tatung University, Taipei 104, Taiwan, P R. China
| | | | | | | |
Collapse
|
21
|
Polaczek E, Tomasik PJ, Mazurkiewicz J, Wrzalik R, Stobinski L, Tomasik P, Lin HM. Interactions of single-walled carbon nanotubes with monosaccharides. J Nanosci Nanotechnol 2005; 5:479-83. [PMID: 15913259 DOI: 10.1166/jnn.2005.054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Closed-end single-walled carbon nanotubes were wetted in aqueous solutions of monosaccharides, forming weak surface complexes, as proven by the estimation of the content of monosaccharides in complexes isolated from aqueous solutions. The complexation was confirmed by micro-Raman spectroscopy. The Gaussian 03 (Molecular Mechanics UFF method) computations of total energy of the single-walled carbon nanotube-monosaccharides inclusion and surface complexes showed that inclusion complexes should be more stable than corresponding surface complexes. Computed total energies for particular complexes pointed to a lack of preferences for the formation of complexes with either alpha- or beta-tautomers and either pyranoses or furanoses. The forms preferred in the formation of the surface complexes usually differ from these favored in the formation of the inclusion complexes.
Collapse
Affiliation(s)
- Elzbieta Polaczek
- Department of Chemistry, Agricultural University, 31 120 Cracow, Poland
| | | | | | | | | | | | | |
Collapse
|
22
|
Slanina Z, Stobinski L, Tomasik P, Lin HM, Adamowicz L. Quantum-chemical model evaluations of thermodynamics and kinetics of oxygen atom additions to narrow nanotubes. J Nanosci Nanotechnol 2003; 3:193-198. [PMID: 12908250 DOI: 10.1166/jnn.2003.190] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
This paper reports a computational study of oxygen additions to narrow nanotubes, a problem frequently studied with fullerenes. In fact, fullerene oxides were the first observed fullerene derivatives, and they have naturally attracted the attention of both experiment and theory. C60O had represented a long-standing case of experiment-theory disagreement, and there has been a similar problem with C60O2. The disagreement has been explained by kinetic rather than thermodynamic control. In this paper a similar computational approach is applied to narrow nanotubes. Recently, very narrow nanotubes have been observed with a diameter of 5 A and even with a diameter of 4 A. It has been supposed that the narrow nanotubes are closed by fragments of small fullerenes like C36 or C20. In this report we perform calculations for oxygen additions to such model nanotubes capped by fragments of D2d C36, D4d C32, and Ih C20 fullerenic cages (though the computational models have to be rather short). The three models have the following carbon contents: C84, C80, and C80. Both thermodynamic enthalpy changes and kinetic activation barriers for oxygen addition to six selected bonds are computed and analyzed. The lowest isomer (thermodynamically the most stable) is never of the 6/6 type, that is, the enthalpically favored structures are produced by oxygen additions to the nanotube tips. Interestingly enough, the lowest energy isomer has, for the D2d C36 and D4d C32 cases, the lowest kinetic activation barrier as well.
Collapse
Affiliation(s)
- Zdenĕk Slanina
- Department of Theoretical Studies, Institute for Molecular Science, Myodaiji, Okazaki 444-8585, Japan
| | | | | | | | | |
Collapse
|
23
|
|
24
|
|
25
|
|