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Toumi S, Adawy A, Quaranta A, Farah K. Copper nanoparticle and point defect formation in Cu +-Na + ion-exchanged glass using protons of 2 MeV energy. Dalton Trans 2024; 53:9578-9589. [PMID: 38771595 DOI: 10.1039/d4dt01124d] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/22/2024]
Abstract
There are several applications for irradiating materials with protons that could provide alternative methodologies to synthesize and induce the formation of new compounds of different size scales. In this study, we explored the effects of proton irradiation oncommercial glass silicate that was previously subjected to a Cu+-Na+ ion exchange (IE) treatment at 600 °C for a duration of 60 min. The ion-exchanged glass samples were irradiated with protons (p+) of 2 MeV energy at doses in the range of thousands of grays (3.3 × 103, 7.9 × 103 Gy) and hundreds of thousands of grays (3.6 × 105 Gy). Significant changes in the optical and structural properties were observed post the radiation treatment. The UV-Visible absorption spectra of the irradiated samples revealed the appearance of overlapping absorption bands, which could be deconvoluted into three Gaussian-shaped bands peaking at 566, 620 and 680 nm. These three bands could be attributed to the surface plasmon resonance (SPR) of copper nanoparticles, non-bridging oxygen hole centers (NBOHCs) and self-trapped hole (STH) defects, respectively. Prominent photoluminescence (PL) was observed in the Cu-exchanged and irradiated samples, mainly induced by the presence of both Cu+ and Cu2O. Increasing the irradiation dose led to an increase in the PL intensity due to the conversion of Cu2+ ions into Cu+. This result was confirmed by electron paramagnetic resonance (EPR) spectroscopy that shows a decrease in the Cu2+ signal when increasing the dose of proton exposure. Transmission electron microscopy (TEM) and high-resolution TEM (TEM and HRTEM) observations confirmed the presence of copper nanoparticles (CuNPs) in the doped and p+ irradiated Cu-exchanged glass silicate samples. These CuNPs were found to be crystalline with an average size of 12.39 nm.
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Affiliation(s)
- Safa Toumi
- Laboratory of Physico-Chemistry of Materials (LPCM), Physics Department, Faculty of Sciences of Monastir, University of Monastir, Tunisia.
| | - Alaa Adawy
- Department of Physics, Faculty of Science, University of Oviedo, 33007 Oviedo, Asturias, Spain.
- Unit of Electron Microscopy and Nanotechnology, Institute for Scientific and Technological Resources (SCTs), University of Oviedo, 33006, Oviedo, Asturias, Spain
| | - Alberto Quaranta
- Department of Industrial Engineering, University of Trento, and INFN-TIFPA, Trento, Italy
| | - Khaled Farah
- University of Sousse, Higher Institute of Transport and Logistics of Sousse, 4023, Tunisia
- Research Laboratory on Energy and Matter for Nuclear Science Development (LR16CNSTN02), National Center for Nuclear Science and Technology, Sidi Thabet, 2020, Tunisia
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2
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Aswathappa S, Dai L, Jude Dhas SS, Dhas SAMB, Laha S, Kumar RS, Almansour AI. Acoustic Shock Wave-Induced Solid-State Fusion of Nanoparticles: A Case Study of the Conversion of One-Dimensional Rod Shape into Three-Dimensional Honeycomb Nanostructures of CdO for High-Performance Energy Storage Materials. Inorg Chem 2024; 63:576-592. [PMID: 38110302 DOI: 10.1021/acs.inorgchem.3c03461] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2023]
Abstract
Herein, we describe the solid-state fusion of rod-shaped to honeycomb-shaped cadmium oxide particles (CdO NPs) caused by the process of repeated exposure to acoustic shock waves. Significant changes have been observed in structurally and morphologically dependent properties. For instance, at the 200-shocked condition, the high-pressure CdO-B2 phase is present as a secondary phase wherein all of the rod-shaped particles have been transformed into honeycomb-shaped CdO particles which possess comparatively higher specific-capacitance than CdO nanorods (NRs). The computed specific capacitance values for the 0, 100, and 200 shocked samples at a scan rate of 100 m V s-1 are computed to be 433, 415, and 583 F g-1, respectively. The second-stage decomposition temperature points of the CdO NPs have significantly increased in accordance with the morphological changes from rod to honeycomb patterns such that the values are 343, 526, and 534 °C, respectively, for 0, 100, and 200 shocked conditions. Note that such honeycomb nanostructured CdO particles by shock-wave processing have never been observed, to date. Due to the superior energy storage abilities as well as the spectacular high thermal stability of the honeycomb CdO nanostructures compared to CdO NRs, shocked CdO with honeycomb nanostructures can be considered as energy storage materials.
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Affiliation(s)
- Sivakumar Aswathappa
- Key Laboratory of High-Temperature and High-Pressure Study of the Earth's Interior, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, Guizhou 550081, China
| | - Lidong Dai
- Key Laboratory of High-Temperature and High-Pressure Study of the Earth's Interior, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, Guizhou 550081, China
| | - S Sahaya Jude Dhas
- Department of Physics, Kings Engineering College, Sriperumbudur, Chennai, Tamilnadu 602117, India
| | - S A Martin Britto Dhas
- Shock Wave Research Laboratory, Department of Physics, Abdul Kalam Research Center, Sacred Heart College, Tirupattur, Tamil Nadu 635601, India
| | - Sourav Laha
- Department of Chemistry, National Institute of Technology Durgapur, Mahatma Gandhi Avenue, Durgapur 713209, India
| | - Raju Suresh Kumar
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Abdulrahman I Almansour
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
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Shaheen R, Yasin T, Ali Z, Khan AS, Adalat B, Tahir M, Khan SB. Synthesis, Characterization, and Adsorptive Characteristics of Radiation-Grafted Glycidyl Methacrylate Bamboo Fiber Composites. ACS OMEGA 2023; 8:38849-38859. [PMID: 37901518 PMCID: PMC10601089 DOI: 10.1021/acsomega.3c02466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 09/29/2023] [Indexed: 10/31/2023]
Abstract
In the present study, a biosorbent was prepared through the radiation-induced graft polymerization (RIGP) technique by using a glycidyl methacrylate (GMA) monomer. Functionalized bamboo materials were used for grafting. The grafting percentage (G %) of GMA on bamboo fibers was assessed based on the optimization of the absorbed dose and concentration of the monomer. The chemical modification of the polymerized product into the sulfonated form of the grafted biopolymer was carried out by using sodium sulfite solution. The modification of the biopolymer at various stages was analyzed by Fourier transform infrared (FTIR) spectroscopy and X-ray diffraction (XRD) techniques. By performing scanning electron microscopy (SEM), the morphological changes of the prepared biopolymer were analyzed. The temperature stability of the synthesized material was assessed by the thermogravimetric analysis (TGA) technique. The prepared sulfonated biosorbent was used in the batch adsorption study for the uptake of copper. We examined a variety of variables, including pH, adsorbent dosage, and time. The adsorption kinetics were studied using pseudo-first-order (PFO) and pseudo-second-order (PSO) models. Adsorption isotherms and thermodynamic parameters were also applied to study the adsorption capacity of the biosorbent. The maximum copper adsorption capacity was found to be 198 mg g-1 from the Langmuir isotherm. Copper adsorption followed PSO kinetics (R2 = 0.999). This inexpensive and eco-friendly biosorbent removed 96% of copper ions from the solution.
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Affiliation(s)
- Ruqayya Shaheen
- Department
of Chemistry, Hazara University, Mansehra 21300, Pakistan
| | - Tariq Yasin
- Department
of Chemistry, Pakistan Institute of Engineering
and Applied Sciences (PIEAS), PO Nilore, Islamabad 45650, Pakistan
| | - Zarshad Ali
- Department
of Chemistry, Hazara University, Mansehra 21300, Pakistan
| | - Amir Sada Khan
- Department
of Chemistry, University of Science and
Technology, Bannu 28100, Khyber Pakhtunkhwa Pakistan
| | - Bushra Adalat
- Department
of Chemistry, Hazara University, Mansehra 21300, Pakistan
| | - Mehwish Tahir
- Department
of Chemistry, Pakistan Institute of Engineering
and Applied Sciences (PIEAS), PO Nilore, Islamabad 45650, Pakistan
| | - Sher Bahadar Khan
- Chemistry
Department, Faculty of Science, King Abdulaziz
University, P.O. Box 80203, Jeddah 21589, Saudi Arabia
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Zhu H, Heinitz S, Eyley S, Thielemans W, Derveaux E, Adriaensens P, Binnemans K, Mullens S, Cardinaels T. Gamma radiation effects on AG MP-50 cation exchange resin and sulfonated activated carbon for bismuth-213 separation. RSC Adv 2023; 13:30990-31001. [PMID: 37881760 PMCID: PMC10594081 DOI: 10.1039/d3ra06130b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 10/16/2023] [Indexed: 10/27/2023] Open
Abstract
Medical 225Ac/213Bi radionuclide generators are designed to provide a local supply of the short-lived 213Bi for cancer treatment. However, radiation-induced damage to the sorbents commonly used in such radionuclide generators remains a major concern. In this study, the effects of gamma radiation on AG MP-50 cation exchange resin and sulfonated activated carbon (SAC) were studied by analyzing the changes in the morphological characteristics, functional groups, and the La3+/Bi3+ sorption performance, with La3+ being a suitable non-radioactive substitute for Ac3+. The surface sulfonic acid groups of AG MP-50 resin suffered from severe radiation-induced degradation, while the particle morphology was changed markedly after being exposed to absorbed doses of approximately 11 MGy. As a result, the sorption performance of irradiated AG MP-50 for La3+ and Bi3+ was significantly decreased with increasing absorbed doses. In contrast, no apparent changes in acquired morphological characteristics were observed for pristine and irradiated SAC based on SEM and XRD characterization. The surface oxygen content (e.g., O-C[double bond, length as m-dash]O) of irradiated SAC increased for an absorbed dose of 11 MGy due to free radical-induced oxidation. The sorption performance of pristine and irradiated SAC materials for La3+ and Bi3+ remained generally the same at pH values of 1 and 2. Furthermore, the applicability of AG MP-50 and SAC in the 225Ac/213Bi generators was illustrated in terms of their radiolytic stability. This study provides further evidence for the practical implementation of both AG MP-50 and SAC in 225Ac/213Bi radionuclide generators.
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Affiliation(s)
- Hongshan Zhu
- Belgian Nuclear Research Centre (SCK CEN), Institute for Nuclear Materials Science Boeretang 200, Mol B-2400 Belgium
- Department of Chemistry, KU Leuven Celestijnenlaan 200F, P. O. 2404 B-3001 Leuven Belgium
- Flemish Institute for Technological Research (VITO NV), Sustainable Materials Management Boeretang 200, Mol 2400 Belgium
| | - Stephan Heinitz
- Belgian Nuclear Research Centre (SCK CEN), Institute for Nuclear Materials Science Boeretang 200, Mol B-2400 Belgium
| | - Samuel Eyley
- Department of Chemical Engineering, Sustainable Materials Lab, KU Leuven Campus Kulak Kortrijk, Etienne Sabbelaan 53 Kortrijk 8500 Belgium
| | - Wim Thielemans
- Department of Chemical Engineering, Sustainable Materials Lab, KU Leuven Campus Kulak Kortrijk, Etienne Sabbelaan 53 Kortrijk 8500 Belgium
| | - Elien Derveaux
- Universiteit Hasselt, Analytical & Circular Chemistry Campus Diepenbeek, Agoralaan Gebouw D B-3590 Diepenbeek Belgium
| | - Peter Adriaensens
- Universiteit Hasselt, Analytical & Circular Chemistry Campus Diepenbeek, Agoralaan Gebouw D B-3590 Diepenbeek Belgium
| | - Koen Binnemans
- Department of Chemistry, KU Leuven Celestijnenlaan 200F, P. O. 2404 B-3001 Leuven Belgium
| | - Steven Mullens
- Flemish Institute for Technological Research (VITO NV), Sustainable Materials Management Boeretang 200, Mol 2400 Belgium
| | - Thomas Cardinaels
- Belgian Nuclear Research Centre (SCK CEN), Institute for Nuclear Materials Science Boeretang 200, Mol B-2400 Belgium
- Department of Chemistry, KU Leuven Celestijnenlaan 200F, P. O. 2404 B-3001 Leuven Belgium
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Abdel Maksoud MIA, Abdelhaleem S, Tawfik EK, Awed AS. Gamma radiation-induced synthesis of novel PVA/Ag/CaTiO 3 nanocomposite film for flexible optoelectronics. Sci Rep 2023; 13:12385. [PMID: 37524696 PMCID: PMC10390552 DOI: 10.1038/s41598-023-38829-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2023] [Accepted: 07/16/2023] [Indexed: 08/02/2023] Open
Abstract
A flexible nanocomposite film based on polyvinyl alcohol (PVA), silver nanoparticles, and calcium titanate (CaTiO3) was synthesized using gamma radiation induced-reduction. Temperature-dependent structural, optical, DC electrical conductivity, electric modulus, and dielectric properties of PVA/Ag/CaTiO3 nanocomposite film were investigated. The XRD pattern proved the successful preparation of the nanocomposite film. Also, as the temperature increases, the average crystallite sizes of CaTiO3 and Ag nanoparticles decrease from 19.8 to 9.7 nm and 25 to 14.8 nm, respectively. Further, the optical band gap increased from 5.75 to 5.84 eV with increasing temperature. The thermal stability is improved, and the semiconductor behavior for PVA/Ag/CaTiO3 nanocomposite film is confirmed by thermal activation energy ΔE with values in the 0.11-0.8 eV range. Furthermore, the maximum barrier Wm value was found of 0.29 eV. PVA/Ag/CaTiO3 nanocomposite film exhibits a semicircular arc originating from the material's grain boundary contributions for all temperatures. The optical, DC electrical conductivity, and dielectric properties of the PVA/Ag/CaTiO3 nanocomposite film can be suitable for flexible electronic devices such as electronic chips, optoelectronics, and energy storage applications.
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Affiliation(s)
- M I A Abdel Maksoud
- Radiation Physics Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt.
| | - Soraya Abdelhaleem
- Radiation Physics Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt
| | - Eman K Tawfik
- Radiation Physics Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt
| | - A S Awed
- Higher Institute for Engineering and Technology at Manzala, El Manzala, Egypt
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6
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Zeng Z, Li S, Que X, Peng J, Li J, Zhai M. Gamma Radiation Synthesis of Ag/P25 Nanocomposites for Efficient Photocatalytic Degradation of Organic Contaminant. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:nano13101666. [PMID: 37242082 DOI: 10.3390/nano13101666] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2023] [Revised: 05/09/2023] [Accepted: 05/16/2023] [Indexed: 05/28/2023]
Abstract
Titanium dioxide (TiO2) has garnered significant attention among various photocatalysts, whereas its photocatalytic activity is limited by its wide bandgap and inefficient charge separation, making the exploration of new strategies to improve its photocatalytic performance increasingly important. Here, we report the synthesis of Ag/P25 nanocomposites through a one-step gamma-ray radiation method using AgNO3 and commercial TiO2 (Degussa P25). The resulting products were characterized by powder X-ray diffraction, UV-Vis diffused reflectance spectroscopy, transmission electron microscopy, and X-ray photoelectron spectroscopy. The effect of free radical scavengers, feed ratios of Ag/P25, and dose rates on the photocatalytic activity of the Ag/P25 nanocomposites were systematically investigated using rhodamine B under Xenon light irradiation. The results showed that the Ag/P25 photocatalyst synthesized with a feed ratio of 2.5 wt% and isopropyl alcohol as the free radical scavenger at a dose rate of 130 Gy/min exhibited outstanding photocatalytic activity, with a reaction rate constant of 0.0674 min-1, much higher than that of P25. Additionally, we found that the particle size of Ag could be effectively controlled by changing the dose rate, and the Ag/P25 nanocomposites doped with smaller size of Ag nanoparticles performed higher photocatalytic activities. The synthesis strategy presented in this study offers new insight into the future development of highly efficient photocatalysts using radiation techniques.
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Affiliation(s)
- Zihua Zeng
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, The Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Shuangxiao Li
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, The Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Xueyan Que
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, The Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Jing Peng
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, The Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Jiuqiang Li
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, The Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Maolin Zhai
- Beijing National Laboratory for Molecular Sciences, Radiochemistry and Radiation Chemistry Key Laboratory of Fundamental Science, The Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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7
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Zhang C, Zhang Y, Gu X, Ma C, Wang Y, Peng J, Zhai M, Kuang M, Ma H, Zhang X. Radiation synthesis of MXene/Ag nanoparticle hybrids for efficient photothermal conversion of polyurethane films. RSC Adv 2023; 13:15157-15164. [PMID: 37213340 PMCID: PMC10193123 DOI: 10.1039/d3ra02799f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Accepted: 05/10/2023] [Indexed: 05/23/2023] Open
Abstract
Flexible conductive films based on light-to-heat conversion are promising for the next-generation electronic devices. A flexible waterborne polyurethane composite film (PU/MA) with excellent photothermal conversion performance was obtained by combination of PU and silver nanoparticle decorated MXene (MX/Ag). The silver nanoparticles (AgNPs) uniformly decorated on the MXene surface by γ-ray irradiation induced reduction. Because of the synergistic effect of MXene with outstanding light-to-heat conversion efficiency and the AgNPs with plasmonic effect, the surface temperature of the PU/MA-II (0.4%) composite with lower MXene content increased from room temperature to 60.7 °C at 5 min under 85 mW cm-2 light irradiation. Besides, the tensile strength of PU/MA-II (0.4%) increased from 20.9 MPa (pure PU) to 27.5 MPa. The flexible PU/MA composite film shows great potential in the field of thermal management of flexible wearable electronic devices.
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Affiliation(s)
- Chenghao Zhang
- Beijing Key Laboratory of Clothing Materials R & D and Assessment, Beijing Engineering Research Center of Textile Nanofiber, School of Materials Science & Engineering, Beijing Institute of Fashion Technology Beijing 100029 China
| | - Youwei Zhang
- Beijing Institute of Aeronautical Materials Beijing 100095 China
| | - Xiaoxia Gu
- Beijing Key Laboratory of Clothing Materials R & D and Assessment, Beijing Engineering Research Center of Textile Nanofiber, School of Materials Science & Engineering, Beijing Institute of Fashion Technology Beijing 100029 China
| | - Cankun Ma
- Beijing Key Laboratory of Clothing Materials R & D and Assessment, Beijing Engineering Research Center of Textile Nanofiber, School of Materials Science & Engineering, Beijing Institute of Fashion Technology Beijing 100029 China
| | - Yicheng Wang
- Beijing National Laboratory for Molecular Sciences, Department of Applied Chemistry and the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University Beijing 100871 China
| | - Jing Peng
- Beijing National Laboratory for Molecular Sciences, Department of Applied Chemistry and the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University Beijing 100871 China
| | - Maolin Zhai
- Beijing National Laboratory for Molecular Sciences, Department of Applied Chemistry and the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University Beijing 100871 China
| | - Minxuan Kuang
- Beijing Key Laboratory of Clothing Materials R & D and Assessment, Beijing Engineering Research Center of Textile Nanofiber, School of Materials Science & Engineering, Beijing Institute of Fashion Technology Beijing 100029 China
| | - Huiling Ma
- Beijing Key Laboratory of Clothing Materials R & D and Assessment, Beijing Engineering Research Center of Textile Nanofiber, School of Materials Science & Engineering, Beijing Institute of Fashion Technology Beijing 100029 China
| | - Xiuqin Zhang
- Beijing Key Laboratory of Clothing Materials R & D and Assessment, Beijing Engineering Research Center of Textile Nanofiber, School of Materials Science & Engineering, Beijing Institute of Fashion Technology Beijing 100029 China
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Ghazzy A, Naik RR, Shakya AK. Metal-Polymer Nanocomposites: A Promising Approach to Antibacterial Materials. Polymers (Basel) 2023; 15:polym15092167. [PMID: 37177313 PMCID: PMC10180664 DOI: 10.3390/polym15092167] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Revised: 04/24/2023] [Accepted: 04/28/2023] [Indexed: 05/15/2023] Open
Abstract
There has been a new approach in the development of antibacterials in order to enhance the antibacterial potential. The nanoparticles are tagged on to the surface of other metals or metal oxides and polymers to achieve nanocomposites. These have shown significant antibacterial properties when compared to nanoparticles. In this article we explore the antibacterial potentials of metal-based and metal-polymer-based nanocomposites, various techniques which are involved in the synthesis of the metal-polymer, nanocomposites, mechanisms of action, and their advantages, disadvantages, and applications.
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Affiliation(s)
- Asma Ghazzy
- Faculty of Pharmacy, Al-Ahliyya Amman University, Amman 19328, Jordan
- Pharmacological and Diagnostic Research Center, Faculty of Pharmacy and Allied Medical Sciences, Al-Ahliyya Amman University, Amman 19328, Jordan
| | - Rajashri R Naik
- Pharmacological and Diagnostic Research Center, Faculty of Pharmacy and Allied Medical Sciences, Al-Ahliyya Amman University, Amman 19328, Jordan
- Faculty of Allied Medical Sciences, Al-Ahliyya Amman University, Amman 19328, Jordan
| | - Ashok K Shakya
- Faculty of Pharmacy, Al-Ahliyya Amman University, Amman 19328, Jordan
- Pharmacological and Diagnostic Research Center, Faculty of Pharmacy and Allied Medical Sciences, Al-Ahliyya Amman University, Amman 19328, Jordan
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Alhashem Z, Farha AH, Mansour SA, Tony MA. Extractability of Rice Husk Waste Using Green Gamma Radiation for Dye Elimination in Laboratory-Scale Sorption System: Equilibrium Isotherm and Kinetic Analysis. MATERIALS (BASEL, SWITZERLAND) 2023; 16:ma16093328. [PMID: 37176210 PMCID: PMC10179794 DOI: 10.3390/ma16093328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/21/2023] [Revised: 04/19/2023] [Accepted: 04/20/2023] [Indexed: 05/15/2023]
Abstract
Nowadays, the use of natural materials and especially "waste" valorization has evolved and attracted the wide attention of scientists and academia. In this regard, the use of rice husk (RH) powder as a naturally abundant and cheap byproduct material is gaining superior attention. However, improving the physicochemical properties of such RH is still under research. In the current investigation, the modification of rice husk (RH) via γ-irradiation has shown to be a promising green tool to meet such a need. Clean, prepared, powdered RH samples were subjected to various γ-radiation doses, namely 5, 10, 15 and 25 kGy, and the corresponding samples were named as RH-0, RH-5, RH-10, RH-15, RH-15 and RH-25. Then, the samples were characterized via scanning electron microscopy (SEM). After irradiation, the samples showed an increase in their surface roughness upon increasing the γ-radiation up to 15 kGy. Furthermore, the sorption capacity of the irradiated RH samples was investigated for eliminating Urolene Blue (UB) dye as a model pharmaceutical effluent stream. The highest dye uptake was recorded as 14.7 mg/g, which corresponded to the RH-15. The adsorption operating parameters were also investigated for all of the studied systems and all adsorbents showed the same trend, of a superior adsorption capacity at pH 6.6 and high temperatures. Langmuir and Freundlich isotherm models were also applied for UB adsorption and an adequate fitted isotherm model was linked with Langmuir fitting. Moreover, the pseudo-second-order kinetic model provided the best fit for the adsorption data. Experimental assays confirmed that the UB dye could be successfully eradicated feasibly from the aqueous stream via a sustainable green methodology.
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Affiliation(s)
- Zakia Alhashem
- Department of Physics, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia
| | - Ashraf H Farha
- Department of Physics, College of Science, King Faisal University, Al-Ahsa 31982, Saudi Arabia
- Semiconductors Technology Laboratory, Physics Department, Faculty of Science, Ain Shams University, Cairo 11566, Egypt
| | - Shehab A Mansour
- Advanced Materials/Solar Energy and Environmental Sustainability (AMSEES) Laboratory, Faculty of Engineering, Menoufia University, Shebin El-Kom 32511, Egypt
- Basic Engineering Science Department, Faculty of Engineering, Menoufia University, Shebin El-Kom 32511, Egypt
| | - Maha A Tony
- Advanced Materials/Solar Energy and Environmental Sustainability (AMSEES) Laboratory, Faculty of Engineering, Menoufia University, Shebin El-Kom 32511, Egypt
- Basic Engineering Science Department, Faculty of Engineering, Menoufia University, Shebin El-Kom 32511, Egypt
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10
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Dietrich J, Enke A, Wilharm N, Konieczny R, Lotnyk A, Anders A, Mayr SG. Energetic Electron-Assisted Synthesis of Tailored Magnetite (Fe 3O 4) and Maghemite (γ-Fe 2O 3) Nanoparticles: Structure and Magnetic Properties. NANOMATERIALS (BASEL, SWITZERLAND) 2023; 13:786. [PMID: 36903665 PMCID: PMC10005483 DOI: 10.3390/nano13050786] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/27/2023] [Revised: 02/10/2023] [Accepted: 02/17/2023] [Indexed: 06/18/2023]
Abstract
Iron oxide nanoparticles with a mean size of approximately 5 nm were synthesized by irradiating micro-emulsions containing iron salts with energetic electrons. The properties of the nanoparticles were investigated using scanning electron microscopy, high-resolution transmission electron microscopy, selective area diffraction and vibrating sample magnetometry. It was found that formation of superparamagnetic nanoparticles begins at a dose of 50 kGy, though these particles show low crystallinity, and a higher portion is amorphous. With increasing doses, an increasing crystallinity and yield could be observed, which is reflected in an increasing saturation magnetization. The blocking temperature and effective anisotropy constant were determined via zero-field cooling and field cooling measurements. The particles tend to form clusters with a size of 34 nm to 73 nm. Magnetite/maghemite nanoparticles could be identified via selective area electron diffraction patterns. Additionally, goethite nanowires could be observed.
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Affiliation(s)
- Johannes Dietrich
- Leibniz Institute of Surface Engineering (IOM), Permoserstraße 15, 04318 Leipzig, Germany
- Division of Surface Physics, Faculty of Physics and Earth Science, Leipzig University, Linnéstraße 5, 04103 Leipzig, Germany
| | - Alexius Enke
- Leibniz Institute of Surface Engineering (IOM), Permoserstraße 15, 04318 Leipzig, Germany
- Division of Surface Physics, Faculty of Physics and Earth Science, Leipzig University, Linnéstraße 5, 04103 Leipzig, Germany
| | - Nils Wilharm
- Leibniz Institute of Surface Engineering (IOM), Permoserstraße 15, 04318 Leipzig, Germany
- Division of Surface Physics, Faculty of Physics and Earth Science, Leipzig University, Linnéstraße 5, 04103 Leipzig, Germany
| | - Robert Konieczny
- Leibniz Institute of Surface Engineering (IOM), Permoserstraße 15, 04318 Leipzig, Germany
| | - Andriy Lotnyk
- Leibniz Institute of Surface Engineering (IOM), Permoserstraße 15, 04318 Leipzig, Germany
| | - André Anders
- Leibniz Institute of Surface Engineering (IOM), Permoserstraße 15, 04318 Leipzig, Germany
- Division of Applied Physics, Faculty of Physics and Earth Science, Leipzig University, Linnéstraße 5, 04103 Leipzig, Germany
| | - Stefan G. Mayr
- Leibniz Institute of Surface Engineering (IOM), Permoserstraße 15, 04318 Leipzig, Germany
- Division of Surface Physics, Faculty of Physics and Earth Science, Leipzig University, Linnéstraße 5, 04103 Leipzig, Germany
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Aratboni HA, Rafiei N, Allaf MM, Abedini S, Rasheed RN, Seif A, Wang S, Ramirez JRM. Nanotechnology: An outstanding tool for increasing and better exploitation of microalgae valuable compounds. ALGAL RES 2023. [DOI: 10.1016/j.algal.2023.103019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/22/2023]
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12
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Abdel Maksoud M, Elsaid MA, Abd Elkodous M. Gamma radiation induced synthesis of Ag decorated NiMn2O4 nanoplates with enhanced electrochemical performance for asymmetric supercapacitor. JOURNAL OF ENERGY STORAGE 2022; 56:105938. [DOI: 10.1016/j.est.2022.105938] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
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13
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Al-Hindawi A, AlDallal U, Waly YM, Hussain MH, Shelig M, Saleh ElMitwalli OSMM, Deen GR, Henari FZ. An Exploration of Nanoparticle-Based Diagnostic Approaches for Coronaviruses: SARS-CoV-2, SARS-CoV and MERS-CoV. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3550. [PMID: 36296739 PMCID: PMC9608708 DOI: 10.3390/nano12203550] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 08/31/2022] [Revised: 09/14/2022] [Accepted: 09/21/2022] [Indexed: 06/16/2023]
Abstract
The wildfire-like spread of COVID-19, caused by severe acute respiratory syndrome-associated coronavirus-2, has resulted in a pandemic that has put unprecedented stress on the world's healthcare systems and caused varying severities of socio-economic damage. As there are no specific treatments to combat the virus, current approaches to overcome the crisis have mainly revolved around vaccination efforts, preventing human-to-human transmission through enforcement of lockdowns and repurposing of drugs. To efficiently facilitate the measures implemented by governments, rapid and accurate diagnosis of the disease is vital. Reverse-transcription polymerase chain reaction and computed tomography have been the standard procedures to diagnose and evaluate COVID-19. However, disadvantages, including the necessity of specialized equipment and trained personnel, the high financial cost of operation and the emergence of false negatives, have hindered their application in high-demand and resource-limited sites. Nanoparticle-based methods of diagnosis have been previously reported to provide precise results within short periods of time. Such methods have been studied in previous outbreaks of coronaviruses, including severe acute respiratory syndrome-associated coronavirus and middle east respiratory syndrome coronavirus. Given the need for rapid diagnostic techniques, this review discusses nanoparticle use in detecting the aforementioned coronaviruses and the recent severe acute respiratory syndrome-associated coronavirus-2 to highlight approaches that could potentially be used during the COVID-19 pandemic.
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Recent Trends in Magnetic Polymer Nanocomposites for Aerospace Applications: A Review. Polymers (Basel) 2022; 14:polym14194084. [PMID: 36236032 PMCID: PMC9572050 DOI: 10.3390/polym14194084] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 09/23/2022] [Accepted: 09/26/2022] [Indexed: 11/25/2022] Open
Abstract
Polymers have had an enormous impact on science and technology, and their interest relating to the development of new macromolecular materials has exponentially increased. Polymer nanocomposites, materials based on a polymeric matrix covalently coupled to reinforcement, display properties of both components. In the aerospace industry, polymer nanocomposites are attractive due to their promising characteristics, among which lightness, mechanical and thermal resistance, radiation and corrosion resistance, and conductive and magnetic properties stand out. The use of them, instead of metal-based materials, has allowed the optimization of design processes and applications in order to provide safer, faster, and eventually cheaper transportation in the future. This comparative review collects the most relevant and prominent advances in the development of polymer nanocomposites with aerospace applications starting from basic aspects such as the definition of polymer nanocomposite to more specialized details such as synthesis, characterization, and applications, in addition to proposing new research branches related to this topic.
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Harish V, Ansari MM, Tewari D, Gaur M, Yadav AB, García-Betancourt ML, Abdel-Haleem FM, Bechelany M, Barhoum A. Nanoparticle and Nanostructure Synthesis and Controlled Growth Methods. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:nano12183226. [PMID: 36145012 PMCID: PMC9503496 DOI: 10.3390/nano12183226] [Citation(s) in RCA: 26] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/14/2022] [Revised: 09/07/2022] [Accepted: 09/09/2022] [Indexed: 05/19/2023]
Abstract
Nanomaterials are materials with one or more nanoscale dimensions (internal or external) (i.e., 1 to 100 nm). The nanomaterial shape, size, porosity, surface chemistry, and composition are controlled at the nanoscale, and this offers interesting properties compared with bulk materials. This review describes how nanomaterials are classified, their fabrication, functionalization techniques, and growth-controlled mechanisms. First, the history of nanomaterials is summarized and then the different classification methods, based on their dimensionality (0-3D), composition (carbon, inorganic, organic, and hybrids), origin (natural, incidental, engineered, bioinspired), crystal phase (single phase, multiphase), and dispersion state (dispersed or aggregated), are presented. Then, the synthesis methods are discussed and classified in function of the starting material (bottom-up and top-down), reaction phase (gas, plasma, liquid, and solid), and nature of the dispersing forces (mechanical, physical, chemical, physicochemical, and biological). Finally, the challenges in synthesizing nanomaterials for research and commercial use are highlighted.
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Affiliation(s)
- Vancha Harish
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Md Mustafiz Ansari
- School of Pharmaceutical Sciences, Lovely Professional University, Phagwara 144411, Punjab, India
| | - Devesh Tewari
- Department of Pharmacognosy and Phytochemistry, School of Pharmaceutical Sciences, Delhi Pharmaceutical Sciences and Research University, New Delhi 110017, India
| | - Manish Gaur
- Centre of Biotechnology, University of Allahabad, Prayagraj 211002, Uttar Pradesh, India
| | - Awadh Bihari Yadav
- Centre of Biotechnology, University of Allahabad, Prayagraj 211002, Uttar Pradesh, India
| | | | - Fatehy M. Abdel-Haleem
- Chemistry Department, Faculty of Science, Cairo University, Giza 12613, Egypt
- Center for Hazards Mitigation, Environmental Studies and Research (CHMESR), Cairo University, Giza 12613, Egypt
| | - Mikhael Bechelany
- Institut Europeen des Membranes, IEM, UMR 5635, University of Montpellier, ENSCM, CNRS, 34730 Montpellier, France
- Correspondence: (M.B.); or (A.B.)
| | - Ahmed Barhoum
- NanoStruc Research Group, Chemistry Department, Faculty of Science, Helwan University, Cairo 11795, Egypt
- School of Chemical Sciences, Dublin City University, D09 Y074 Dublin, Ireland
- Correspondence: (M.B.); or (A.B.)
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Metallic and Metal Oxides Nanoparticles for Sensing Food Pathogens—An Overview of Recent Findings and Future Prospects. MATERIALS 2022; 15:ma15155374. [PMID: 35955309 PMCID: PMC9370041 DOI: 10.3390/ma15155374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/14/2022] [Revised: 07/30/2022] [Accepted: 08/03/2022] [Indexed: 02/01/2023]
Abstract
Nowadays, special importance is given to quality control and food safety. Food quality currently creates significant problems for the industry and implicitly for consumers and society. The effects materialize in economic losses, alterations of the quality and organoleptic properties of the commercial products, and, last but not least, they constitute risk factors for the consumer’s health. In this context, the development of analytical systems for the rapid determination of the sanitary quality of food products by detecting possible pathogenic microorganisms (such as Escherichia coli or Salmonella due to the important digestive disorders that they can cause in many consumers) is of major importance. Using efficient and environmentally friendly detection systems for identification of various pathogens that modify food matrices and turn them into food waste faster will also improve agri-food quality throughout the food chain. This paper reviews the use of metal nanoparticles used to obtain bio nanosensors for the purpose mentioned above. Metallic nanoparticles (Au, Ag, etc.) and their oxides can be synthesized by several methods, such as chemical, physical, physico-chemical, and biological, each bringing advantages and disadvantages in their use for developing nanosensors. In the “green chemistry” approach, a particular importance is given to the metal nanoparticles obtained by phytosynthesis. This method can lead to the development of good quality nanoparticles, at the same time being able to use secondary metabolites from vegetal wastes, as such providing a circular economy character. Considering these aspects, the use of phytosynthesized nanoparticles in other biosensing applications is also presented as a glimpse of their potential, which should be further explored.
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Gamma-Rays Induced Synthesis of Ag-Decorated ZnCo2O4–MoS2 Heterostructure as Novel Photocatalyst and Effective Antimicrobial Agent for Wastewater Treatment Application. J Inorg Organomet Polym Mater 2022. [DOI: 10.1007/s10904-022-02387-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
AbstractThe development of novel semiconductors-based-photocatalysts is a promising strategy for addressing environmental pollution. In the present study, gamma irradiation was utilized to induce the synthesis of the exceptionally efficient Ag-decorated ZnCo2O4–MoS2 heterostructure. XRD and EDX analyses were verified the successful synthesis of Ag-decorated ZnCo2O4–MoS2 heterostructure. Also, SEM and HR-TEM images were illustrated the heterostructure nature of the synthesized photocatalyst in the nanoscale regime. The obtained optical bandgap values verified that photocatalyst possesses a narrow semiconductor bandgap. Further, the Ag-decorated ZnCo2O4–MoS2 heterostructure exhibited superior photodegradation potential towards MB (95.4% removal of the MB). The antimicrobial potency of the synthesized samples had been investigated through ZOI, MIC, growth curve assay, and the effect of UV illumination. Also, the antibiofilm behaviour has been studied. The antibacterial reaction mechanism had been estimated by membrane leakage assay and SEM imaging. The tested samples displayed a positive potency to a broad spectrum of bacteria like Proteus mirabilis, Staphylococcus aureus, Pseudomonas aeruginosa, and Candida albicans. In particular, Ag–MoS2–ZnCo2O4 nanocomposite possessed the highest impact, followed by the spinal ZnCo2O4 NPs towards all the tested pathogenic microbes. In this assessment, the Ag-decorated ZnCo2O4–MoS2 heterostructure has been shown to be a promising candidate for wastewater treatment application.
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Electroconductive green metal‐polyaniline nanocomposites: synthesis and application in sensors. ELECTROANAL 2022. [DOI: 10.1002/elan.202100636] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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Abstract
Metal nanoparticles (NPs) are increasingly being used in many areas, e.g., industry, pharmacy, and biomedical engineering. NPs can be obtained through chemical and biological synthesis or using physical methods. AgNPs, AuNPs, CuNPs, FeNPs, MgNPs, SnO2NPs, TiO2NPs, and ZnONPs are the most commonly synthesized metal nanoparticles. Many of them have anti-microbial properties and documented activity supported by many tests against some species of pathogenic bacteria, viruses, and fungi. AgNPs, which are used for the production of commercial self-sterilizing packages, are one of the best-explored nanoparticles. Moreover, the EFSA has approved the use of small doses of silver nanoparticles (0.05 mg Ag·kg−1) to food products. Recent studies have shown that metal NPs can be used for the production of coatings to prevent the spread of the SARS-CoV-2 virus, which has caused the global pandemic. Some nanoparticles (e.g., ZnONPs and MgONPs) have the Generally Recognized As Safe (GRAS) status, i.e., they are considered safe for consumption and can be used for the production of edible coatings, protecting food against spoilage. Promising results have been obtained in research on the use of more than one type of nanometals, which prevents the development of pathogen resistance through various mechanisms of inactivation thereof.
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Mostafa RA, El-Sherbiny IM, Selim NS, Sallam AM, Ashry HA. Green synthesis of strontium-reduced graphene oxide biocomposite using gamma radiation. Radiat Phys Chem Oxf Engl 1993 2022. [DOI: 10.1016/j.radphyschem.2022.110109] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Dosimetric Performance of Poly(vinyl alcohol)/Silver Nanoparticles Hybrid Nanomaterials for Colorimetric Sensing of Gamma Radiation. NANOMATERIALS 2022; 12:nano12071088. [PMID: 35407206 PMCID: PMC9000229 DOI: 10.3390/nano12071088] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Revised: 03/23/2022] [Accepted: 03/23/2022] [Indexed: 11/21/2022]
Abstract
A colorimetric liquid sensor based on a poly(vinyl alcohol)/silver nanoparticle (PVA/AgNPs) hybrid nanomaterial was developed for gamma radiation in the range of 0−100 Gy. In this study, gamma rays (Cobalt-60 source) triggered the aggregation of AgNPs in a PVA/silver nitrate (AgNO3) hybrid solution. The color of this solution visibly changed from colorless to dark yellow. Absorption spectra of the PVA/AgNPs solution were analyzed by UV-Vis spectrophotometry in the range of 350−800 nm. Important parameters, such as pH and AgNO3 concentration were optimized. The accuracy, sensitivity, stability, and uncertainty of the sensor were investigated and compared to the reference standard dosimeter. Based on the spectrophotometric results, an excellent positive linear correlation (r = 0.998) between the absorption intensity and received dose was found. For the accuracy, the intra-class correlation coefficient (ICC) between the PVA/AgNPs sensor and the standard Fricke dosimeter was 0.998 (95%CI). The sensitivity of this sensor was 2.06 times higher than the standard dosimeter. The limit of detection of the liquid dosimeter was 13.4 Gy. Moreover, the overall uncertainty of this sensor was estimated at 4.962%, in the acceptable range for routine standard dosimeters (<6%). Based on its dosimetric performance, this new PVA/AgNPs sensor has potential for application as an alternative gamma sensor for routine dose monitoring in the range of 13.4−100 Gy.
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Noman M, Ahmed T, Ijaz U, Hameed A, Shahid M, Azizullah, Li D, Song F. Microbe-oriented nanoparticles as phytomedicines for plant health management: An emerging paradigm to achieve global food security. Crit Rev Food Sci Nutr 2022; 63:7489-7509. [PMID: 35254111 DOI: 10.1080/10408398.2022.2046543] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Biotic and abiotic environmental stresses affect the production and quality of agricultural products worldwide. The extensive use of traditional preventive measures comprising toxic chemicals has become more problematic due to severe ecotoxicological challenges. To address this issue, engineered nanoparticles (NPs) with their distinct physical and chemical properties has gained scientific attention and can help plants to confront environmental challenges. Despite their ameliorative and beneficial effects, toxicological concerns have been raised about NPs. The recent development of biogenic NPs (bio-NPs) is getting attention in agriculture due to their diverse biocompatibility, better functional efficacy, and eco-friendly nature compared to the recalcitrant NPs, providing a promising strategy for increased crop protection against biotic and abiotic environmental stresses, with the ultimate goal of ensuring global food security. This review summarizes the recent advances in the engineering of bio-NPs with particular emphasis on the functions of bio-NPs in protecting plants from biotic and abiotic environmental stresses, delivery and entry routes of NPs to plant systems, nanotoxicity, and plant physiological/biochemical responses to nanotoxicity. Future perspectives of bio-NP-enabled strategies, remaining pitfalls, and possible solutions to combat environmental challenges via advanced nanotechnology to achieve global food security and a sustainable agricultural system are also discussed.
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Affiliation(s)
- Muhammad Noman
- State Key Laboratory of Rice Biology and Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Temoor Ahmed
- State Key Laboratory of Rice Biology and Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Usman Ijaz
- State Key Laboratory of Rice Biology and Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Amir Hameed
- Plant Breeding and Acclimatization Institute, National Research Institute, Blonie, Poland
| | - Muhammad Shahid
- Department of Bioinformatics and Biotechnology, Government College University, Faisalabad, Pakistan
| | - Azizullah
- State Key Laboratory of Rice Biology and Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Dayong Li
- State Key Laboratory of Rice Biology and Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou, China
| | - Fengming Song
- State Key Laboratory of Rice Biology and Ministry of Agriculture Key Laboratory of Molecular Biology of Crop Pathogens and Insects, Institute of Biotechnology, Zhejiang University, Hangzhou, China
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Pereira AG, Gerolis LGL, Gonçalves LS, Moreira LMC, Gastelois PL, Neves MJ. Radiolytic synthesis and characterization of selenium nanoparticles: comparative biosafety evaluation with selenite and ionizing radiation. World J Microbiol Biotechnol 2022; 38:33. [PMID: 34989895 DOI: 10.1007/s11274-021-03218-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Accepted: 12/19/2021] [Indexed: 10/19/2022]
Abstract
The goal of this work is use a green chemistry route to synthesize selenium nanoparticles (SeNPs) that do not trigger oxidative stress, typical of metallic, oxide metallic and carbonaceous nanostructures, and supply the same beneficial effects as selenium nanostructures. SeNPs were synthesized using a radiolytic method involving irradiating a solution containing sodium selenite (Se4+) as the precursor in 1% Yeast extract, 2% Peptone, 2% Glucose (YPG) liquid medium with gamma-rays (60Cobalt). The method did not employ any hazardous reducing agents. Saccharomyces cerevisiae cells were incubated with 1 mM SeNPs for 24 h and/or then challenged with 400 Gy of ionizing radiation were assessed for viability and biomarkers of oxidative stress: lipid peroxidation, protein carbonylation, free radical generation, and total sulfhydryl content. Spherical SeNPs with variable diameters (from 100 to 200 nm) were formed after reactions of sodium selenite with hydrated electrons (eaq-) and hydrogen radicals (H·). Subsequent structural characterizations indicated an amorphous structure composed of elemental selenium (Se0). Compared to 1 mM selenite, SeNPs were considered safe and less toxic to Saccharomyces cerevisiae cells as did not elicit significant modifications in cell viability or oxidative stress parameters except for increased protein carbonylation. Furthermore, SeNPs treatment afforded some protection against ionizing radiation exposure. SeNPs produced using green chemistry attenuated the reactive oxygen species generation after in vitro ionizing radiation exposure opens up tremendous possibilities for radiosensitizer development.
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Affiliation(s)
- Alline Gomes Pereira
- Laboratório de Radiobiologia, Serviço de Radiofármacos (SERFA) Centro de Desenvolvimento da Tecnologia Nuclear/Comissão Nacional de Energia Nuclear (CDTN/CNEN), Cx Postal 0941, Belo Horizonte, MG, CEP 30161-970, Brazil
| | - Luanai Graziele Luquini Gerolis
- Laboratório de Radiobiologia, Serviço de Radiofármacos (SERFA) Centro de Desenvolvimento da Tecnologia Nuclear/Comissão Nacional de Energia Nuclear (CDTN/CNEN), Cx Postal 0941, Belo Horizonte, MG, CEP 30161-970, Brazil
| | - Letícia Satler Gonçalves
- Laboratório de Radiobiologia, Serviço de Radiofármacos (SERFA) Centro de Desenvolvimento da Tecnologia Nuclear/Comissão Nacional de Energia Nuclear (CDTN/CNEN), Cx Postal 0941, Belo Horizonte, MG, CEP 30161-970, Brazil
| | - Luciana Mara Costa Moreira
- Laboratório de Pesquisa Clínica, Faculdade de Medicina, Universidade Federal de Minas Gerais, Belo Horizonte, CEP, 30130-100, Brazil
| | - Pedro Lana Gastelois
- Serviço de Nanotecnologia e Materiais Nucleares (SENAN), CDTN/CNEN, Belo Horizonte, MG, Brazil
| | - Maria Jose Neves
- Laboratório de Radiobiologia, Serviço de Radiofármacos (SERFA) Centro de Desenvolvimento da Tecnologia Nuclear/Comissão Nacional de Energia Nuclear (CDTN/CNEN), Cx Postal 0941, Belo Horizonte, MG, CEP 30161-970, Brazil.
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Baek M, Kim J, Jin J, Choi JW. Photochemically driven solid electrolyte interphase for extremely fast-charging lithium-ion batteries. Nat Commun 2021; 12:6807. [PMID: 34815396 PMCID: PMC8611023 DOI: 10.1038/s41467-021-27095-w] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Accepted: 10/20/2021] [Indexed: 11/17/2022] Open
Abstract
Extremely fast charging (i.e. 80% of storage capacity within 15 min) is a pressing requirement for current lithium-ion battery technology and also affects the planning of charging infrastructure. Accelerating lithium ion transport through the solid-electrolyte interphase (SEI) is a major obstacle in boosting charging rate; in turn, limited kinetics at the SEI layer negatively affect the cycle life and battery safety as a result of lithium metal plating on the electrode surface. Here, we report a γ-ray-driven SEI layer that allows a battery cell to be charged to 80% capacity in 10.8 min as determined for a graphite full-cell with a capacity of 2.6 mAh cm−2. This exceptional charging performance is attributed to the lithium fluoride-rich SEI induced by salt-dominant decomposition via γ-ray irradiation. This study highlights the potential of non-electrochemical approaches to adjust the SEI composition toward fast charging and long-term stability, two parameters that are difficult to improve simultaneously in typical electrochemical processes owing to the trade-off relation. Extremely fast charging such as charging 80% of capacity within 15 min is a pressing requirement for current lithium-ion battery technology. Here the authors achieve this by incorporating an artificial solid-electrolyte interphase rich in inorganic components on the graphite electrode.
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Affiliation(s)
- Minsung Baek
- School of Chemical and Biological Engineering and Institute of Chemical Processes, Seoul National University, Seoul, Republic of Korea
| | - Jinyoung Kim
- School of Chemical and Biological Engineering and Institute of Chemical Processes, Seoul National University, Seoul, Republic of Korea
| | - Jaegyu Jin
- Institute of Battery Technology, SK on, Daejeon, Republic of Korea
| | - Jang Wook Choi
- School of Chemical and Biological Engineering and Institute of Chemical Processes, Seoul National University, Seoul, Republic of Korea. .,Department of Materials Science and Engineering, Seoul National University, Seoul, Republic of Korea.
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Bekhit M, El-Sabbagh SH, Mohamed RM, El-Sayyad GS, Sokary R. Mechanical, Thermal and Antimicrobial Properties of LLDPE/EVA/MMT/Ag Nanocomposites Films Synthesized by Gamma Irradiation. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-02137-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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27
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Gamma Irradiation Assisted the Sol–Gel Method for Silver Modified-Nickel Molybdate Nanoparticles Synthesis: Unveiling the Antimicrobial, and Antibiofilm Activities Against Some Pathogenic Microbes. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-02132-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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28
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Ali F, Hamza M, Iqbal M, Basha B, Alwadai N, Nazir A. State-of-art of silver and gold nanoparticles synthesis routes, characterization and applications: a review. Z PHYS CHEM 2021. [DOI: 10.1515/zpch-2021-3084] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
To date, the noble metal-based nanoparticles have been used in every field of life. The Au and Ag nanoparticles (NPs) have been fabricated employing different techniques to tune the properties. In this study, the methodologies developed and adopted for the fabrication of Au and Ag have been discussed, which include physical, chemical and biological routes. The Au and Ag characteristics (morphology, size, shape) along with advantages and disadvantages are discussed. The Au and Ag NPs catalytic and biomedical applications are discussed. For the Ag and Au NPs characterization, SEM (scanning electron microscope), TEM (transmission electron microscope), FTIR (Fourier transform infra-red spectroscopy), XRD (X-rays diffraction) and DLS (dynamic light scattering) techniques are employed. The properties of Au and Ag NPs found dependent to synthesis approach, i.e., the size, shape and morphologies, which showed a promising Catalytic, drug delivery and antimicrobial agent applications. The review is a comprehensive study for the comparison of Au and Ag NPs synthesis, properties and applications in different fields.
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Affiliation(s)
- Faisal Ali
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Muhammad Hamza
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Munawar Iqbal
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
| | - Beriham Basha
- Department of Physics , College of Science, Princess Nourah bint Abdulrahman University (PNU) , Riyadh 11671 , Saudi Arabia
| | - Norah Alwadai
- Department of Physics , College of Science, Princess Nourah bint Abdulrahman University (PNU) , Riyadh 11671 , Saudi Arabia
| | - Arif Nazir
- Department of Chemistry , The University of Lahore , Lahore , Pakistan
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Ahmed T, Noman M, Manzoor N, Ali S, Rizwan M, Ijaz M, Allemailem KS, BinShaya AS, Alhumaydhi FA, Li B. Recent advances in nanoparticles associated ecological harms and their biodegradation: Global environmental safety from nano-invaders. JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 2021; 9:106093. [DOI: 10.1016/j.jece.2021.106093] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/27/2023]
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30
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Ielo I, Rando G, Giacobello F, Sfameni S, Castellano A, Galletta M, Drommi D, Rosace G, Plutino MR. Synthesis, Chemical-Physical Characterization, and Biomedical Applications of Functional Gold Nanoparticles: A Review. Molecules 2021; 26:5823. [PMID: 34641367 PMCID: PMC8510367 DOI: 10.3390/molecules26195823] [Citation(s) in RCA: 40] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/08/2021] [Revised: 09/17/2021] [Accepted: 09/20/2021] [Indexed: 12/12/2022] Open
Abstract
Relevant properties of gold nanoparticles, such as stability and biocompatibility, together with their peculiar optical and electronic behavior, make them excellent candidates for medical and biological applications. This review describes the different approaches to the synthesis, surface modification, and characterization of gold nanoparticles (AuNPs) related to increasing their stability and available features useful for employment as drug delivery systems or in hyperthermia and photothermal therapy. The synthetic methods reported span from the well-known Turkevich synthesis, reduction with NaBH4 with or without citrate, seeding growth, ascorbic acid-based, green synthesis, and Brust-Schiffrin methods. Furthermore, the nanosized functionalization of the AuNP surface brought about the formation of self-assembled monolayers through the employment of polymer coatings as capping agents covalently bonded to the nanoparticles. The most common chemical-physical characterization techniques to determine the size, shape and surface coverage of AuNPs are described underlining the structure-activity correlation in the frame of their applications in the biomedical and biotechnology sectors.
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Affiliation(s)
- Ileana Ielo
- Institute for the Study of Nanostructured Materials, ISMN—CNR, Palermo, c/o Department of ChiBioFarAm, University of Messina, Viale F. Stagno d’Alcontres 31, Vill. S. Agata, 98166 Messina, Italy; (I.I.); (F.G.); (S.S.); (A.C.)
| | - Giulia Rando
- Department of Chemical, Biological, Pharmaceutical and Analytical Sciences (ChiBioFarAm), University of Messina, Viale F. Stagno d’Alcontres 31, Vill. S. Agata, 98166 Messina, Italy; (G.R.); (M.G.); (D.D.)
| | - Fausta Giacobello
- Institute for the Study of Nanostructured Materials, ISMN—CNR, Palermo, c/o Department of ChiBioFarAm, University of Messina, Viale F. Stagno d’Alcontres 31, Vill. S. Agata, 98166 Messina, Italy; (I.I.); (F.G.); (S.S.); (A.C.)
| | - Silvia Sfameni
- Institute for the Study of Nanostructured Materials, ISMN—CNR, Palermo, c/o Department of ChiBioFarAm, University of Messina, Viale F. Stagno d’Alcontres 31, Vill. S. Agata, 98166 Messina, Italy; (I.I.); (F.G.); (S.S.); (A.C.)
- Department of Engineering, University of Messina, Contrada di Dio, S. Agata, 98166 Messina, Italy
| | - Angela Castellano
- Institute for the Study of Nanostructured Materials, ISMN—CNR, Palermo, c/o Department of ChiBioFarAm, University of Messina, Viale F. Stagno d’Alcontres 31, Vill. S. Agata, 98166 Messina, Italy; (I.I.); (F.G.); (S.S.); (A.C.)
| | - Maurilio Galletta
- Department of Chemical, Biological, Pharmaceutical and Analytical Sciences (ChiBioFarAm), University of Messina, Viale F. Stagno d’Alcontres 31, Vill. S. Agata, 98166 Messina, Italy; (G.R.); (M.G.); (D.D.)
| | - Dario Drommi
- Department of Chemical, Biological, Pharmaceutical and Analytical Sciences (ChiBioFarAm), University of Messina, Viale F. Stagno d’Alcontres 31, Vill. S. Agata, 98166 Messina, Italy; (G.R.); (M.G.); (D.D.)
| | - Giuseppe Rosace
- Department of Engineering and Applied Sciences, University of Bergamo, Viale Marconi 5, 24044 Dalmine, Italy
| | - Maria Rosaria Plutino
- Institute for the Study of Nanostructured Materials, ISMN—CNR, Palermo, c/o Department of ChiBioFarAm, University of Messina, Viale F. Stagno d’Alcontres 31, Vill. S. Agata, 98166 Messina, Italy; (I.I.); (F.G.); (S.S.); (A.C.)
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Nasef MM, Gupta B, Shameli K, Verma C, Ali RR, Ting TM. Engineered Bioactive Polymeric Surfaces by Radiation Induced Graft Copolymerization: Strategies and Applications. Polymers (Basel) 2021; 13:3102. [PMID: 34578003 PMCID: PMC8473120 DOI: 10.3390/polym13183102] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/10/2021] [Revised: 09/03/2021] [Accepted: 09/05/2021] [Indexed: 11/16/2022] Open
Abstract
The interest in developing antimicrobial surfaces is currently surging with the rise in global infectious disease events. Radiation-induced graft copolymerization (RIGC) is a powerful technique enabling permanent tunable and desired surface modifications imparting antimicrobial properties to polymer substrates to prevent disease transmission and provide safer biomaterials and healthcare products. This review aims to provide a broader perspective of the progress taking place in strategies for designing various antimicrobial polymeric surfaces using RIGC methods and their applications in medical devices, healthcare, textile, tissue engineering and food packing. Particularly, the use of UV, plasma, electron beam (EB) and γ-rays for biocides covalent immobilization to various polymers surfaces including nonwoven fabrics, films, nanofibers, nanocomposites, catheters, sutures, wound dressing patches and contact lenses is reviewed. The different strategies to enhance the grafted antimicrobial properties are discussed with an emphasis on the emerging approach of in-situ formation of metal nanoparticles (NPs) in radiation grafted substrates. The current applications of the polymers with antimicrobial surfaces are discussed together with their future research directions. It is expected that this review would attract attention of researchers and scientists to realize the merits of RIGC in developing timely, necessary antimicrobial materials to mitigate the fast-growing microbial activities and promote hygienic lifestyles.
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Affiliation(s)
- Mohamed Mahmoud Nasef
- Advanced Materials Research Group, Center of Hydrogen Energy, Universiti Teknologi Malaysia, Jalan Sultan Yahya Putra, Kuala Lumpur 54100, Malaysia;
- Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur 54100, Malaysia;
| | - Bhuvanesh Gupta
- Bioengineering Laboratory, Department of Textile Technology, Indian Institute of Technology, New Delhi 110016, India; (B.G.); (C.V.)
| | - Kamyar Shameli
- Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur 54100, Malaysia;
| | - Chetna Verma
- Bioengineering Laboratory, Department of Textile Technology, Indian Institute of Technology, New Delhi 110016, India; (B.G.); (C.V.)
| | - Roshafima Rasit Ali
- Advanced Materials Research Group, Center of Hydrogen Energy, Universiti Teknologi Malaysia, Jalan Sultan Yahya Putra, Kuala Lumpur 54100, Malaysia;
- Malaysia-Japan International Institute of Technology, Universiti Teknologi Malaysia, Kuala Lumpur 54100, Malaysia;
| | - Teo Ming Ting
- Radiation Processing Technology Division, Malaysian Nuclear Agency, Kajang 43000, Malaysia;
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Deghiedy NM, Elkenawy NM, Abd El-Rehim HA. Gamma radiation-assisted fabrication of bioactive-coated thyme nanoemulsion: A novel approach to improve stability, antimicrobial and antibiofilm efficacy. J FOOD ENG 2021. [DOI: 10.1016/j.jfoodeng.2021.110600] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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Abdel Maksoud MIA, El-Sayyad GS, El-Bastawisy HS, Fathy RM. Antibacterial and antibiofilm activities of silver-decorated zinc ferrite nanoparticles synthesized by a gamma irradiation-coupled sol-gel method against some pathogenic bacteria from medical operating room surfaces. RSC Adv 2021; 11:28361-28374. [PMID: 35480774 PMCID: PMC9038124 DOI: 10.1039/d1ra04785j] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2021] [Accepted: 08/09/2021] [Indexed: 12/12/2022] Open
Abstract
This work aimed at the gamma irradiation-assisted synthesis of silver (Ag)-decorated ZnFe2O4 (ZFO) ferrite nanoparticles (NPs), which were tested for their antibacterial and antibiofilm activities against some pathogenic bacteria from medical operating room surfaces. The prepared Ag-decorated ZFO NPs were characterized via XRD, SEM, EDX, elemental mapping, and FTIR analysis. The antibacterial potential was tested as ZOI and MIC, while antibiofilm activity was estimated by the tube method. The growth curve assay, the effect of UV on the antimicrobial activity, and cell membrane leakage were evaluated, and the antibacterial reaction mechanism was investigated by SEM/EDX analysis. The XRD and FTIR results confirmed the successful preparation of Ag-decorated ZFO NPs. Antibacterial results revealed that the most potent decorated sample was Ag0.75@ZFO NPs, recording the most significant inhibition zone against Staphylococcus vitulinus (24.67 ± 0.577 mm) and low MIC (0.097 μg mL-1) against S. vitulinus. The antibiofilm activity of Ag0.75@ZFO NPs was the highest, recorded as 97.3% for S. aureus and 95.25% for Enterococcus columbae. In the case of UV exposure, bacterial growth reached the lowest grade. Finally, it was seen that the amount of cellular protein released from bacterial cells is directly proportional to the concentration of Ag0.75@ZFO NPs, which clearly explains the formation of pits in the cell membrane. The synthesized nanocomposites may find an application after mixing with operating room paints to reduce the harmful effect of pathogenic microbes and, therefore, eliminate bacterial contamination.
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Affiliation(s)
- M I A Abdel Maksoud
- Materials Science Lab., Radiation Physics Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA) Cairo Egypt
| | - Gharieb S El-Sayyad
- Drug Microbiology Lab., Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA) Cairo Egypt
| | - Hanan S El-Bastawisy
- Drug Microbiology Lab., Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA) Cairo Egypt
| | - Rasha M Fathy
- Drug Microbiology Lab., Drug Radiation Research Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA) Cairo Egypt
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Bras W, Myles DAA, Felici R. When x-rays alter the course of your experiments. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 33:423002. [PMID: 34298526 DOI: 10.1088/1361-648x/ac1767] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/15/2021] [Accepted: 07/23/2021] [Indexed: 06/13/2023]
Abstract
The continuing increase in the brilliance of synchrotron radiation beamlines allows for many new and exciting experiments that were impossible before the present generation of synchrotron radiation sources came on line. However, the exposure to such intense beams also tests the limits of what samples can endure. Whilst the effects of radiation induced damage in a static experiment often can easily be recognized by changes in the diffraction or spectroscopy curves, the influence of radiation on chemical or physical processes, where one expects curves to change, is less often recognized and can be misinterpreted as a 'real' result instead of as a 'radiation influenced result'. This is especially a concern in time-resolved materials science experiments using techniques as powder diffraction, small angle scattering and x-ray absorption spectroscopy. Here, the effects of radiation (5-50 keV) on some time-resolved processes in different types of materials and in different physical states are discussed. We show that such effects are not limited to soft matter and biology but rather can be found across the whole spectrum of materials research, over a large range of radiation doses and is not limited to very high brilliance beamlines.
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Affiliation(s)
- Wim Bras
- Chemical Sciences Division, Oak Ridge National Laboratory, One Bethel Valley Road, Oak Ridge TN 37831, United States of America
| | - Dean A A Myles
- Neutron Scattering Division, Oak Ridge National Laboratory, One Bethel Valley Road, Oak Ridge TN 37831, United States of America
| | - Roberto Felici
- CNR-SPIN, Area della ricerca di Tor Vergata, via del Fosso del Cavaliere 100, 00133 Roma, Italy
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Bekhit M, Abo El Naga AO, El Saied M, Abdel Maksoud MIA. Radiation-induced synthesis of copper sulfide nanotubes with improved catalytic and antibacterial activities. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2021; 28:44467-44478. [PMID: 33851295 DOI: 10.1007/s11356-021-13482-9] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 03/11/2021] [Indexed: 06/12/2023]
Abstract
In the current paper, copper sulfide nanotubes have been successfully synthesized via the green, simple, and effective gamma-radiolysis method without adding any capping or reducing agents. The structural and morphological characteristics of the as-prepared CuS nanotubes were investigated by X-ray diffraction (XRD), N2 adsorption-desorption measurements at 77 K, transmission electron microscopy (TEM), and ultraviolet-visible (UV-vis) spectroscopy, which all demonstrated the formation of pure CuS covellite phase with tubular morphology. The synthesized CuS nanotubes possessed not only high activity towards the reduction of both cationic (methylene blue) and anionic (Congo red) dyes in the presence of NaBH4 but also exhibited excellent reusability. In addition, the pseudo-first-order kinetic model represented the reduction of MB very well, and the value of the normalized rate constant (2.4 × 10-2 s-1 mg-1) was higher than those of other solid catalysts reported in the literature. Ultimately, CuS nanotubes were found to have a broad-spectrum microbicidal action against the common microbiota, such as Gram-positive (exemplified by Bacillus subtilis and Staphylococcus aureus), Gram-negative bacteria (exemplified by Pseudomonas aeruginosa and Escherichia coli), yeast (exemplified by Candida albicans), and plant pathogenic fungi (exemplified by Aspergillus niger).
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Affiliation(s)
- Mohamad Bekhit
- Radiation Chemistry Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Nasr City, Cairo, Egypt
| | - Ahmed O Abo El Naga
- Catalysis Department, Refining Division, Egyptian Petroleum Research Institute, Nasr City, Cairo, 11727, Egypt
| | - Mohamed El Saied
- Catalysis Department, Refining Division, Egyptian Petroleum Research Institute, Nasr City, Cairo, 11727, Egypt.
| | - Mohamed I A Abdel Maksoud
- Materials Science Lab, Radiation Physics Department, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Cairo, Egypt
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Nada HG, Ali HEA, El-Behery RR, Shanab SMM, Elshatoury EH. Nanoparticles Biosynthesized by Bacillus cereus Filtrate and Gamma Rays Enhancing Chlorella vulgaris Biomass and Lipid Production. J CLUST SCI 2021. [DOI: 10.1007/s10876-021-02122-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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37
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Preparation of high electrochemical activity Pd/RGO composites on the microemulsion interface through radiation technique. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126335] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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38
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Issaadi HM, Béni Z, Tóth T, Dékány M, Hsieh TJ, Balogh GT, Hunyadi A. Diversity-oriented synthesis through gamma radiolysis: Preparation of unusual ecdysteroid derivatives activating Akt and AMPK in skeletal muscle cells. Bioorg Chem 2021; 112:104951. [PMID: 34000705 DOI: 10.1016/j.bioorg.2021.104951] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 04/22/2021] [Accepted: 04/26/2021] [Indexed: 11/19/2022]
Abstract
Gamma-ray radiation is a unique way to induce chemical transformations of bioactive compounds. In the present study, we pursued this approach to the diversity-oriented synthesis of analogs of 20-hydroxyecdysone (20E), an abundant ecdysteroid with a range of beneficial, non-hormonal bioactivities in mammals including humans. Gamma irradiations of aqueous solutions of 20E were conducted either in N2- or N2O-saturated solutions. Centrifugal partition chromatography was used to fractionate crude resulting irradiated materials using a biphasic solvent system composed of tert-butyl alcohol - ethyl acetate - water (0.45:0.9:1, v/v/v) in ascending mode. Subsequently, the products were purified by RP-HPLC. Fourteen ecdysteroids, including five new compounds, were isolated, and their structure were elucidated by 1D and 2D NMR and HRMS. Compounds 2-4, 7, 9, 12 and 15 were tested for their capacity to increase the Akt- and AMPK-phosphorylation of C2C12 murine skeletal myotubes in vitro. The compounds were similarly active on Akt as their parent compound. Stachysterone B (7) and a new ring-rearranged compound (12) were more potent than 20E in activating AMPK, indicating a stronger cytoprotective effect. Our results demonstrate the use of gamma irradiation in expanding the chemical diversity of ecdysteroids to obtain new, unusual bioactive metabolites.
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Affiliation(s)
- Halima Meriem Issaadi
- Institute of Pharmacognosy, University of Szeged, Eötvös str. 6, 6726 Szeged, Hungary
| | - Zoltán Béni
- Spectroscopic Research, Gedeon Richter Plc., Gyömrői út 19-21, H-1103 Budapest, Hungary
| | - Tünde Tóth
- Department of Organic Chemistry and Technology, Budapest University of Technology and Economics, PO Box 91, H-1521 Budapest, Hungary; Institute for Energy Security and Environmental Safety, Centre for Energy Research, P.O. Box 49, H-1525 Budapest, Hungary
| | - Miklós Dékány
- Spectroscopic Research, Gedeon Richter Plc., Gyömrői út 19-21, H-1103 Budapest, Hungary
| | - Tusty-Jiuan Hsieh
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan, ROC
| | - György Tibor Balogh
- Department of Chemical and Environmental Process Engineering, Budapest University of Technology and Economics, Budafoki út 8., H-1111 Budapest, Hungary; Faculty of Pharmacy, Department of Pharmacodynamics and Biopharmacy, University of Szeged, Eötvös utca 6., H-6720 Szeged, Hungary.
| | - Attila Hunyadi
- Institute of Pharmacognosy, University of Szeged, Eötvös str. 6, 6726 Szeged, Hungary; Interdisciplinary Centre for Natural Products, University of Szeged, Eötvös str. 6, 6720 Szeged, Hungary.
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Martínez-Vieyra C, Gutiérrez-Segura E, López-Tellez G, Alcántara-Díaz D, Olguín MT. Antimicrobial composites of nanoparticles generated by gamma irradiation supported in clinoptilolite-rich tuff. APPLIED NANOSCIENCE 2021. [DOI: 10.1007/s13204-021-01687-w] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
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40
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Prins PT, Montanarella F, Dümbgen K, Justo Y, van der Bok JC, Hinterding SOM, Geuchies JJ, Maes J, De Nolf K, Deelen S, Meijer H, Zinn T, Petukhov AV, Rabouw FT, De Mello Donega C, Vanmaekelbergh D, Hens Z. Extended Nucleation and Superfocusing in Colloidal Semiconductor Nanocrystal Synthesis. NANO LETTERS 2021; 21:2487-2496. [PMID: 33661650 DOI: 10.1021/acs.nanolett.0c04813] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
Hot-injection synthesis is renowned for producing semiconductor nanocolloids with superb size dispersions. Burst nucleation and diffusion-controlled size focusing during growth have been invoked to rationalize this characteristic yet experimental evidence supporting the pertinence of these concepts is scant. By monitoring a CdSe synthesis in-situ with X-ray scattering, we find that nucleation is an extended event that coincides with growth during 15-20% of the reaction time. Moreover, we show that size focusing outpaces predictions of diffusion-limited growth. This observation indicates that nanocrystal growth is dictated by the surface reactivity, which drops sharply for larger nanocrystals. Kinetic reaction simulations confirm that this so-called superfocusing can lengthen the nucleation period and promote size focusing. The finding that narrow size dispersions can emerge from the counteracting effects of extended nucleation and reaction-limited size focusing ushers in an evidence-based perspective that turns hot injection into a rational scheme to produce monodisperse semiconductor nanocolloids.
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Affiliation(s)
| | | | - Kim Dümbgen
- Physics and Chemistry of Nanostructures, Ghent University, B-9000 Gent, Belgium
| | - Yolanda Justo
- Physics and Chemistry of Nanostructures, Ghent University, B-9000 Gent, Belgium
| | | | | | | | - Jorick Maes
- Physics and Chemistry of Nanostructures, Ghent University, B-9000 Gent, Belgium
| | - Kim De Nolf
- Physics and Chemistry of Nanostructures, Ghent University, B-9000 Gent, Belgium
| | | | | | | | - Andrei V Petukhov
- Laboratory of Physical Chemistry, Eindhoven University of Technology, 5612 AZ Eindhoven, The Netherlands
| | | | | | | | - Zeger Hens
- Physics and Chemistry of Nanostructures, Ghent University, B-9000 Gent, Belgium
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Habibullah G, Viktorova J, Ruml T. Current Strategies for Noble Metal Nanoparticle Synthesis. NANOSCALE RESEARCH LETTERS 2021; 16:47. [PMID: 33721118 PMCID: PMC7960878 DOI: 10.1186/s11671-021-03480-8] [Citation(s) in RCA: 60] [Impact Index Per Article: 20.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/01/2020] [Accepted: 01/11/2021] [Indexed: 05/09/2023]
Abstract
Noble metals have played an integral part in human history for centuries; however, their integration with recent advances in nanotechnology and material sciences have provided new research opportunities in both academia and industry, which has resulted in a new array of advanced applications, including medical ones. Noble metal nanoparticles (NMNPs) have been of great importance in the field of biomedicine over the past few decades due to their importance in personalized healthcare and diagnostics. In particular, platinum, gold and silver nanoparticles have achieved the most dominant spot in the list, thanks to a very diverse range of industrial applications, including biomedical ones such as antimicrobial and antiviral agents, diagnostics, drug carriers and imaging probes. In particular, their superior resistance to extreme conditions of corrosion and oxidation is highly appreciated. Notably, in the past two decades there has been a tremendous advancement in the development of new strategies of more cost-effective and robust NMNP synthesis methods that provide materials with highly tunable physicochemical, optical and thermal properties, and biochemical functionalities. As a result, new advanced hybrid NMNPs with polymer, graphene, carbon nanotubes, quantum dots and core-shell systems have been developed with even more enhanced physicochemical characteristics that has led to exceptional diagnostic and therapeutic applications. In this review, we aim to summarize current advances in the synthesis of NMNPs (Au, Ag and Pt).
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Affiliation(s)
- Giyaullah Habibullah
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Technická 5, 166 28, Prague, Czech Republic
| | - Jitka Viktorova
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Technická 5, 166 28, Prague, Czech Republic.
| | - Tomas Ruml
- Department of Biochemistry and Microbiology, University of Chemistry and Technology Prague, Technická 5, 166 28, Prague, Czech Republic
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López‐Barriguete JE, Flores‐Rojas GG, López‐Saucedo F, Isoshima T, Bucio E. Improving thermo‐responsive hydrogel films by gamma rays and loading of Cu and Ag nanoparticles. J Appl Polym Sci 2021. [DOI: 10.1002/app.49841] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Affiliation(s)
- Jesús Eduardo López‐Barriguete
- Departamento de Química de Radiaciones y Radioquímica, Instituto de Ciencias Nucleares Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria Ciudad de México Mexico
- Nano Medical Engineering Laboratory RIKEN Wako Japan
| | - Guadalupe Gabriel Flores‐Rojas
- Departamento de Química de Radiaciones y Radioquímica, Instituto de Ciencias Nucleares Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria Ciudad de México Mexico
- Nano Medical Engineering Laboratory RIKEN Wako Japan
| | - Felipe López‐Saucedo
- Departamento de Química de Radiaciones y Radioquímica, Instituto de Ciencias Nucleares Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria Ciudad de México Mexico
| | | | - Emilio Bucio
- Departamento de Química de Radiaciones y Radioquímica, Instituto de Ciencias Nucleares Universidad Nacional Autónoma de México, Circuito Exterior, Ciudad Universitaria Ciudad de México Mexico
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43
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Tahir M, Raza A, Nasir A, Yasin T. Radiation induced graft polymerization of glycidyl methacrylate onto sepiolite. Radiat Phys Chem Oxf Engl 1993 2021. [DOI: 10.1016/j.radphyschem.2020.109259] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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44
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Dias ET, Gill SK, Liu Y, Halstenberg P, Dai S, Huang J, Mausz J, Gakhar R, Phillips WC, Mahurin S, Pimblott SM, Wishart JF, Frenkel AI. Radiation-Assisted Formation of Metal Nanoparticles in Molten Salts. J Phys Chem Lett 2021; 12:157-164. [PMID: 33320682 DOI: 10.1021/acs.jpclett.0c03231] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Knowledge of structural and thermal properties of molten salts is crucial for understanding and predicting their stability in many applications such as thermal energy storage and nuclear energy systems. Probing the behavior of metal contaminants in molten salts is presently limited to either foreign ionic species or metal nanocrystals added to the melt. To bridge the gap between these two end states and follow the nucleation and growth of metal species in molten salt environment in situ, we use synchrotron X-rays as both a source of solvated electrons for reducing Ni2+ ions added to ZnCl2 melt and as an atomic-level probe for detecting formation of zerovalent Ni nanoparticles. By combining extended X-ray absorption fine structure analysis with X-ray absorption near edge structure modeling, we obtained the average size and structure of the nanoparticles and proposed a radiation-induced reduction mechanism of metal ions in molten salts.
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Affiliation(s)
- Elaine T Dias
- Nuclear Science and Technology Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Simerjeet K Gill
- Nuclear Science and Technology Department, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Yang Liu
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, New York 11794, United States
| | - Phillip Halstenberg
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
| | - Sheng Dai
- Department of Chemistry, University of Tennessee, Knoxville, Tennessee 37996, United States
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Jiahao Huang
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, New York 11794, United States
| | - Julia Mausz
- Ludwig-Maximilians-Universität München, München 80539, Germany
| | - Ruchi Gakhar
- Idaho National Laboratory, Idaho Falls, Idaho 83415, United States
| | | | - Shannon Mahurin
- Chemical Sciences Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, United States
| | - Simon M Pimblott
- Idaho National Laboratory, Idaho Falls, Idaho 83415, United States
| | - James F Wishart
- Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States
| | - Anatoly I Frenkel
- Department of Materials Science and Chemical Engineering, Stony Brook University, Stony Brook, New York 11794, United States
- Chemistry Division, Brookhaven National Laboratory, Upton, New York 11973, United States
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45
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Shanab SMM, Partila AM, Ali HEA, Abdullah MA. Impact of gamma-irradiated silver nanoparticles biosynthesized from Pseudomonas aeruginosa on growth, lipid, and carbohydrates of Chlorella vulgaris and Dictyochloropsis splendida. JOURNAL OF RADIATION RESEARCH AND APPLIED SCIENCES 2020. [DOI: 10.1080/16878507.2020.1856599] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
| | - Abir M. Partila
- Department of Radiation Microbiology, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Egypt
| | - Hamdy Elsayed Ahmed Ali
- Department of Radiation Microbiology, National Center for Radiation Research and Technology (NCRRT), Egyptian Atomic Energy Authority (EAEA), Egypt
| | - Mohd Azmuddin Abdullah
- Institute of Marine Biotechnology, Universiti Malaysia Terengganu, Kuala Nerus, Terengganu, Malaysia
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46
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Kulkarni MB, Goel S. Microfluidic devices for synthesizing nanomaterials—a review. NANO EXPRESS 2020. [DOI: 10.1088/2632-959x/abcca6] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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Effect of brush length of stabilizing grafted matrix on size and catalytic activity of metal nanoparticles. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109811] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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48
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Fazolin GN, Varca GH, de Freitas LF, Rokita B, Kadlubowski S, Lugão AB. Simultaneous intramolecular crosslinking and sterilization of papain nanoparticles by gamma radiation. Radiat Phys Chem Oxf Engl 1993 2020. [DOI: 10.1016/j.radphyschem.2020.108697] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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49
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Ilić-Stojanović S, Urošević M, Nikolić L, Petrović D, Stanojević J, Najman S, Nikolić V. Intelligent Poly( N-Isopropylmethacrylamide) Hydrogels: Synthesis, Structure Characterization, Stimuli-Responsive Swelling Properties, and Their Radiation Decomposition. Polymers (Basel) 2020; 12:E1112. [PMID: 32414046 PMCID: PMC7285319 DOI: 10.3390/polym12051112] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2020] [Revised: 04/27/2020] [Accepted: 05/07/2020] [Indexed: 11/16/2022] Open
Abstract
Poly(N-isopropylmethacrylamide) (p(NiPMAm)) is one of the lesser known homopolymers that has significant potential for designing new "intelligent" materials. The aims of this work were the synthesis a series of cross-linked p(NiPMAm) hydrogels by the free radical polymerization method and the application of gamma-ray radiation for additional cross-linking. The synthesized p(NiPMAm) hydrogels were structurally characterized by Fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). The amount of unreacted monomers was analyzed using high pressure liquid chromatography (HPLC) to evaluate conversion of monomers into polymers. The swelling behavior was monitored in dependence of pH and temperature changes. The previous aim of gamma-ray radiation was the further the cross-linkage of the obtained hydrogel sample in the gelatinous, paste-like state, but the gamma-ray radiation caused decomposition. After absorbing irradiation doses, they transformed into the liquid phase. The results obtained by the gel permeation chromatography (GPC) method indicated that only oligomers and monomers were present in the irradiated liquid material, without molecules with a higher average molar mass, i.e., that the decomposition of the hydrogels occurred. Additionally, the irradiated liquid material was analyzed using the static headspace gas chromatography mass spectrometry (HSS-GC/MS) and gas chromatography/flame ionization detection (HSS-GC/FID) methods. The presence of unchanged initiator molecule and a dominant amount of four new molecules that were different from homopolymers and the reactant (monomer and cross-linker) were determined.
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Affiliation(s)
- Snežana Ilić-Stojanović
- Faculty of Technology, University of Niš, Bulevar Oslobodjenja 124, 16000 Leskovac, Serbia; (M.U.); (L.N.); (J.S.); (V.N.)
| | - Maja Urošević
- Faculty of Technology, University of Niš, Bulevar Oslobodjenja 124, 16000 Leskovac, Serbia; (M.U.); (L.N.); (J.S.); (V.N.)
| | - Ljubiša Nikolić
- Faculty of Technology, University of Niš, Bulevar Oslobodjenja 124, 16000 Leskovac, Serbia; (M.U.); (L.N.); (J.S.); (V.N.)
| | - Djordje Petrović
- Vinča Institute of Nuclear Sciences, Department of Radioisotopes, University of Belgrade, Mike Petrovića Alasa 12-14, 11351 Vinča, Belgrade, Serbia;
| | - Jelena Stanojević
- Faculty of Technology, University of Niš, Bulevar Oslobodjenja 124, 16000 Leskovac, Serbia; (M.U.); (L.N.); (J.S.); (V.N.)
| | - Stevo Najman
- Faculty of Medicine, University of Niš, Boulevard dr Zorana Djindjica 81, 18108 Niš, Serbia;
| | - Vesna Nikolić
- Faculty of Technology, University of Niš, Bulevar Oslobodjenja 124, 16000 Leskovac, Serbia; (M.U.); (L.N.); (J.S.); (V.N.)
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A Facile One-Pot Synthesis of Versatile PEGylated Platinum Nanoflowers and Their Application in Radiation Therapy. Int J Mol Sci 2020; 21:ijms21051619. [PMID: 32120829 PMCID: PMC7084439 DOI: 10.3390/ijms21051619] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Revised: 02/22/2020] [Accepted: 02/24/2020] [Indexed: 12/19/2022] Open
Abstract
Nanomedicine has stepped into the spotlight of radiation therapy over the last two decades. Nanoparticles (NPs), especially metallic NPs, can potentiate radiotherapy by specific accumulation into tumors, thus enhancing the efficacy while alleviating the toxicity of radiotherapy. Water radiolysis is a simple, fast and environmentally-friendly method to prepare highly controllable metallic nanoparticles in large scale. In this study, we used this method to prepare biocompatible PEGylated (with Poly(Ethylene Glycol) diamine) platinum nanoflowers (Pt NFs). These nanoagents provide unique surface chemistry, which allows functionalization with various molecules such as fluorescent markers, drugs or radionuclides. The Pt NFs were produced with a controlled aggregation of small Pt subunits through a combination of grafted polymers and radiation-induced polymer cross-linking. Confocal microscopy and fluorescence lifetime imaging microscopy revealed that Pt NFs were localized in the cytoplasm of cervical cancer cells (HeLa) but not in the nucleus. Clonogenic assays revealed that Pt NFs amplify the gamma rays induced killing of HeLa cells with a sensitizing enhancement ratio (SER) of 23%, thus making them promising candidates for future cancer radiation therapy. Furthermore, the efficiency of Pt NFs to induce nanoscopic biomolecular damage by interacting with gamma rays, was evaluated using plasmids as molecular probe. These findings show that the Pt NFs are efficient nano-radio-enhancers. Finally, these NFs could be used to improve not only the performances of radiation therapy treatments but also drug delivery and/or diagnosis when functionalized with various molecules.
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