51
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Sun M, Tian J, Chen Q. The studies on wet chemical etching via in situ liquid cell TEM. Ultramicroscopy 2021; 231:113271. [PMID: 33879369 DOI: 10.1016/j.ultramic.2021.113271] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2020] [Revised: 03/11/2021] [Accepted: 04/02/2021] [Indexed: 12/31/2022]
Abstract
Wet chemical etching is a widely used process to fabricate fascinating nanomaterials, such as nanoparticles with precisely controlled size and shape. Understanding the etching mechanism and kinetic evolution process is crucial for controlling wet chemical etching. The development of in situ liquid cell transmission electron microscopy (LCTEM) enables the study on wet chemical etching with high temporal and spatial resolutions. However, there still lack a detailed literature review on the wet chemical etching studies by in situ LCTEM. In this review, we summarize the studies on wet etching nanoparticles, one-dimensional nanomaterials and nanoribbons by in situ LCTEM, including etching rate, anisotropic etching, morphology evolution process, and etching mechanism. The challenges and opportunities of in situ LCTEM are also discussed.
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Affiliation(s)
- Mei Sun
- Key Laboratory for the Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Beijing 100871, China; Hefei National Laboratory for Physical Sciences at the Microscale, University of Science and Technology of China, Hefei 230026, China
| | - Jiamin Tian
- Key Laboratory for the Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Beijing 100871, China
| | - Qing Chen
- Key Laboratory for the Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Beijing 100871, China.
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52
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Gnanasekaran L, Rajendran S, Priya AK, Durgalakshmi D, Vo DVN, Cornejo-Ponce L, Gracia F, Soto-Moscoso M. Photocatalytic degradation of 2,4-dichlorophenol using bio-green assisted TiO 2-CeO 2 nanocomposite system. ENVIRONMENTAL RESEARCH 2021; 195:110852. [PMID: 33556356 DOI: 10.1016/j.envres.2021.110852] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/10/2020] [Revised: 01/27/2021] [Accepted: 02/02/2021] [Indexed: 06/12/2023]
Abstract
In recent times, cost effective synthesis of semiconductor materials has been a subject of concern for the day to today applications. In this work, novelty has been made on the facile synthesis of metal oxides (TiO2 and CeO2) and nanocomposites (TiO2-CeO2) through sol-gel and precipitation methods of imparting lemon extract. The synthesized materials behave as the functional catalysts which has been further carried out for the photocatalytic degradation against 2,4-Dichlorophenol (2,4-DCP). The materials are then valued for the structural and optical properties. The lemon extract used in synthesis has played a premier role in upgrading the charge carrier separation, bandgap, and size reduction of the composite system. Further, the CeO2 supported TiO2 sample acts as the better visible light catalyst, due to the prevention of aggregation and existence of line dislocation that supported to access the additional electron trap sites.
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Affiliation(s)
- Lalitha Gnanasekaran
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avda. General Velásquez, Arica, 1775, Chile
| | - Saravanan Rajendran
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avda. General Velásquez, Arica, 1775, Chile.
| | - A K Priya
- Department of Civil Engineering, KPR Institute of Engineering and Technology, Coimbatore, 641027, India
| | - D Durgalakshmi
- Department of Medical Physics, CEG Campus, Anna University, Chennai, 600 025, India
| | - Dai-Viet N Vo
- Center of Excellence for Green Energy and Environmental Nanomaterials (CE@GrEEN), Nguyen Tat Thanh University, 300A Nguyen Tat Thanh, District 4, Ho Chi Minh City, 755414, Viet Nam
| | - Lorena Cornejo-Ponce
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avda. General Velásquez, Arica, 1775, Chile
| | - F Gracia
- Department of Chemical Engineering, Biotechnology and Materials, University of Chile, Beauchef 851, 6th Floor, Santiago, Chile
| | - Matias Soto-Moscoso
- Departamento de Física, Facultad de Ciencias, Universidad Del Bío-bío, Avenida Collao 1202, Casilla 15-C, Concepción, Chile
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53
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Wyatt BC, Rosenkranz A, Anasori B. 2D MXenes: Tunable Mechanical and Tribological Properties. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2007973. [PMID: 33738850 DOI: 10.1002/adma.202007973] [Citation(s) in RCA: 101] [Impact Index Per Article: 33.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2020] [Revised: 01/12/2021] [Indexed: 05/24/2023]
Abstract
2D transition metal carbides, nitrides, and carbonitrides, known as MXenes, were discovered in 2011 and have grown to prominence in energy storage, catalysis, electromagnetic interference shielding, wireless communications, electronic, sensors, and environmental and biomedical applications. In addition to their high electrical conductivity and electrochemically active behavior, MXenes' mechanical properties, flexibility, and strong adhesion properties play crucial roles in almost all of these growing applications. Although these properties prove to be critical in MXenes' impressive performance, the mechanical and tribological understanding of MXenes, as well as their relation to the synthesis process, is yet to be fully explored. Here, a fundamental overview of MXenes' mechanical and tribological properties is provided and the effects of MXenes' compositions, synthesis, and processing steps on these properties are discussed. Additionally, a critical perspective of the compositional control of MXenes for innovative structural, low-friction, and low-wear performance in current and upcoming applications of MXenes is provided. It is established here that the fundamental understanding of MXenes' mechanical and tribological behavior is essential for their quickly growing applications.
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Affiliation(s)
- Brian C Wyatt
- Department of Mechanical and Energy Engineering, and Integrated Nanosystems Development Institute, Purdue School of Engineering and Technology, Indiana University-Purdue University Indianapolis, Indianapolis, IN, 46202, USA
| | - Andreas Rosenkranz
- Department of Chemical Engineering, Biotechnology and Materials, Faculty of Physical and Mathematics Sciences, University of Chile, Avenida Beaucheff 851, Santiago de Chile, 8370456, Chile
| | - Babak Anasori
- Department of Mechanical and Energy Engineering, and Integrated Nanosystems Development Institute, Purdue School of Engineering and Technology, Indiana University-Purdue University Indianapolis, Indianapolis, IN, 46202, USA
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54
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Cao J, Zaremba OT, Lei Q, Ploetz E, Wuttke S, Zhu W. Artificial Bioaugmentation of Biomacromolecules and Living Organisms for Biomedical Applications. ACS NANO 2021; 15:3900-3926. [PMID: 33656324 DOI: 10.1021/acsnano.0c10144] [Citation(s) in RCA: 22] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The synergistic union of nanomaterials with biomaterials has revolutionized synthetic chemistry, enabling the creation of nanomaterial-based biohybrids with distinct properties for biomedical applications. This class of materials has drawn significant scientific interest from the perspective of functional extension via controllable coupling of synthetic and biomaterial components, resulting in enhancement of the chemical, physical, and biological properties of the obtained biohybrids. In this review, we highlight the forefront materials for the combination with biomacromolecules and living organisms and their advantageous properties as well as recent advances in the rational design and synthesis of artificial biohybrids. We further illustrate the incredible diversity of biomedical applications stemming from artificially bioaugmented characteristics of the nanomaterial-based biohybrids. Eventually, we aim to inspire scientists with the application horizons of the exciting field of synthetic augmented biohybrids.
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Affiliation(s)
- Jiangfan Cao
- MOE International Joint Research Laboratory on Synthetic Biology and Medicines, School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China
| | - Orysia T Zaremba
- Basque Center for Materials, UPV/EHU Science Park, Leioa 48940, Spain
- University of California-Berkeley, Berkeley, California 94720, United States
| | - Qi Lei
- MOE International Joint Research Laboratory on Synthetic Biology and Medicines, School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China
| | - Evelyn Ploetz
- Ludwig-Maximilians-Universität (LMU) Munich, Munich 81377, Germany
| | - Stefan Wuttke
- Basque Center for Materials, UPV/EHU Science Park, Leioa 48940, Spain
- Basque Foundation for Science, Bilbao 48009, Spain
| | - Wei Zhu
- MOE International Joint Research Laboratory on Synthetic Biology and Medicines, School of Biology and Biological Engineering, South China University of Technology, Guangzhou 510006, China
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55
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A Brief Overview of Recent Progress in Porous Silica as Catalyst Supports. JOURNAL OF COMPOSITES SCIENCE 2021. [DOI: 10.3390/jcs5030075] [Citation(s) in RCA: 37] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Porous silica particles have shown applications in various technological fields including their use as catalyst supports in heterogeneous catalysis. The mesoporous silica particles have ordered porosity, high surface area, and good chemical stability. These interesting structural or textural properties make porous silica an attractive material for use as catalyst supports in various heterogeneous catalysis reactions. The colloidal nature of the porous silica particles is highly useful in catalytic applications as it guarantees better mass transfer properties and uniform distribution of the various metal or metal oxide nanocatalysts in solution. The catalysts show high activity, low degree of metal leaching, and ease in recycling when supported or immobilized on porous silica-based materials. In this overview, we have pointed out the importance of porous silica as catalyst supports. A variety of chemical reactions catalyzed by different catalysts loaded or embedded in porous silica supports are studied. The latest reports from the literature about the use of porous silica-based materials as catalyst supports are listed and analyzed. The new and continued trends are discussed with examples.
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56
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Li S, Al-Misned FA, El-Serehy HA, Yang L. Green synthesis of gold nanoparticles using aqueous extract of Mentha Longifolia leaf and investigation of its anti-human breast carcinoma properties in the in vitro condition. ARAB J CHEM 2021. [DOI: 10.1016/j.arabjc.2020.102931] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/09/2022] Open
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57
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Khalil M, Kadja GT, Ilmi MM. Advanced nanomaterials for catalysis: Current progress in fine chemical synthesis, hydrocarbon processing, and renewable energy. J IND ENG CHEM 2021. [DOI: 10.1016/j.jiec.2020.09.028] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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58
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Majidi Arlan F, Poursattar Marjani A, Javahershenas R, Khalafy J. Recent developments in the synthesis of polysubstituted pyridines via multicomponent reactions using nanocatalysts. NEW J CHEM 2021. [DOI: 10.1039/d1nj01801a] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
This review describes the evolution and application of active metal-based and heterometallic NPs as efficient heterogeneous catalysts for the synthesis of pyridine derivatives by multicomponent reactions in the last decade (2010–2020).
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Affiliation(s)
| | | | - Ramin Javahershenas
- Department of Organic Chemistry
- Faculty of Chemistry
- Urmia University
- Urmia
- Iran
| | - Jabbar Khalafy
- Department of Organic Chemistry
- Faculty of Chemistry
- Urmia University
- Urmia
- Iran
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59
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Hemmati S, Heravi MM, Karmakar B, Veisi H. Green fabrication of reduced graphene oxide decorated with Ag nanoparticles (rGO/Ag NPs) nanocomposite: A reusable catalyst for the degradation of environmental pollutants in aqueous medium. J Mol Liq 2020. [DOI: 10.1016/j.molliq.2020.114302] [Citation(s) in RCA: 33] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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60
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Schaffter SW, Scalise D, Murphy TM, Patel A, Schulman R. Feedback regulation of crystal growth by buffering monomer concentration. Nat Commun 2020; 11:6057. [PMID: 33247122 PMCID: PMC7695852 DOI: 10.1038/s41467-020-19882-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Accepted: 10/28/2020] [Indexed: 12/26/2022] Open
Abstract
Crystallization is a ubiquitous means of self-assembly that can organize matter over length scales orders of magnitude larger than those of the monomer units. Yet crystallization is notoriously difficult to control because it is exquisitely sensitive to monomer concentration, which changes as monomers are depleted during growth. Living cells control crystallization using chemical reaction networks that offset depletion by synthesizing or activating monomers to regulate monomer concentration, stabilizing growth conditions even as depletion rates change, and thus reliably yielding desired products. Using DNA nanotubes as a model system, here we show that coupling a generic reversible bimolecular monomer buffering reaction to a crystallization process leads to reliable growth of large, uniformly sized crystals even when crystal growth rates change over time. Buffering could be applied broadly as a simple means to regulate and sustain batch crystallization and could facilitate the self-assembly of complex, hierarchical synthetic structures.
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Affiliation(s)
- Samuel W Schaffter
- Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Dominic Scalise
- Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA
| | | | - Anusha Patel
- Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Rebecca Schulman
- Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA.
- Department of Computer Science, Johns Hopkins University, Baltimore, MD, 21218, USA.
- Department of Chemistry, Johns Hopkins University, Baltimore, MD, 21218, USA.
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61
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Kumar V, Katyal D, Nayak S. Removal of heavy metals and radionuclides from water using nanomaterials: current scenario and future prospects. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2020; 27:41199-41224. [PMID: 32829433 DOI: 10.1007/s11356-020-10348-4] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2020] [Accepted: 08/03/2020] [Indexed: 06/11/2023]
Abstract
There is an increase in concern about the hazardous effects of radioactivity due to the presence of undesirable radioactive substances in our vicinity. Nuclear accidents such as Chernobyl (1986) and Fukushima (2011) have further raised concerns towards such incidents which have led to contamination of water bodies. Conventional methods of water purification are less efficient in decontamination of radioisotopes. They are usually neither cost-effective nor environmentally friendly. However, nanotechnology can play a vital role in providing practical solutions to this problem. Nano-engineered materials like metal oxides, metallic organic frameworks, and nanoparticle-impregnated membranes have proven to be highly efficient in treating contaminated water. Their unique characteristics such as high adsorption capacity, large specific surface area, high tensile strength, and excellent biocompatibility properties make them useful in the field of water purification. This review explores the present status and future prospects of nanomaterials as the next-generation water purification systems that can play an important role in the removal of heavy metals and radioactive contaminants from aqueous solutions.
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Affiliation(s)
- Vinod Kumar
- University School of Environment Management (USEM), Guru Gobind Singh Indraprastha University, Dwarka, Delhi, 110078, India
- Division of CBRN Defense, Institute of Nuclear Medicine and Allied Sciences, Timarpur, Delhi, 110054, India
| | - Deeksha Katyal
- University School of Environment Management (USEM), Guru Gobind Singh Indraprastha University, Dwarka, Delhi, 110078, India.
| | - SwayangSiddha Nayak
- Division of CBRN Defense, Institute of Nuclear Medicine and Allied Sciences, Timarpur, Delhi, 110054, India
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62
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Al-Anazi A, Abdelraheem WH, Scheckel K, Nadagouda MN, O'Shea K, Dionysiou DD. Novel franklinite-like synthetic zinc-ferrite redox nanomaterial: synthesis, and evaluation for degradation of diclofenac in water. APPLIED CATALYSIS. B, ENVIRONMENTAL 2020; 275:10.1016/j.apcatb.2020.119098. [PMID: 33424127 PMCID: PMC7787998 DOI: 10.1016/j.apcatb.2020.119098] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
The current study investigates a novel redox technology based on synthetic franklinite-like zinc-ferrite nanomaterial with magnetic properties and redox nature for potential use in water treatment. Physicochemical characterization revealed the nanoscale size and AB2O4 spinel configuration of the zinc-ferrite nanomaterial. The redox activity of nanoparticles was tested for degradation of diclofenac (DCF) pharmaceutical in water, without any added external oxidants and under dark experimental conditions. Results revealed ~90% degradation in DCF (10 μM) within 2 min of reaction using 0.17 g/L Zn1.0Fe2.0O4. Degradation of DCF was due to chemical reduction by surface electrons on zinc-ferrite and oxidation by oxygen-based radicals. Three byproducts from reduction route and eight from oxidation pathways were identified in the reaction system. Reaction pathways were suggested based on the identified byproducts. Results demonstrated the magnetic zinc-ferrite is a standalone technology that has a great promise for rapid degradation of organic contaminants, such as DCF in water.
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Affiliation(s)
- Abdulaziz Al-Anazi
- Environmental Engineering and Science Program, Department of Chemical and Environmental Engineering (ChEE), University of Cincinnati, Cincinnati, OH 45221-0012, United States
| | - Wael H. Abdelraheem
- Environmental Engineering and Science Program, Department of Chemical and Environmental Engineering (ChEE), University of Cincinnati, Cincinnati, OH 45221-0012, United States
- Chemistry Department, Faculty of Science, Sohag University, Sohag 82524, Egypt
| | - Kirk Scheckel
- U. S. Environmental Protection Agency, Office of Research and Development, Center for Environmental Solutions and Emergency Response, Cincinnati, OH 45268, United States
| | - Mallikarjuna N. Nadagouda
- U. S. Environmental Protection Agency, Office of Research and Development, Center for Environmental Solutions and Emergency Response, Cincinnati, OH 45268, United States
| | - Kevin O'Shea
- Department of Chemistry and Biochemistry, Florida International University, Miami, FL 33199, United States
| | - Dionysios D. Dionysiou
- Environmental Engineering and Science Program, Department of Chemical and Environmental Engineering (ChEE), University of Cincinnati, Cincinnati, OH 45221-0012, United States
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Jarmolińska S, Feliczak-Guzik A, Nowak I. Synthesis, Characterization and Use of Mesoporous Silicas of the Following Types SBA-1, SBA-2, HMM-1 and HMM-2. MATERIALS (BASEL, SWITZERLAND) 2020; 13:E4385. [PMID: 33019709 PMCID: PMC7579092 DOI: 10.3390/ma13194385] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 09/25/2020] [Accepted: 09/29/2020] [Indexed: 01/09/2023]
Abstract
Mesoporous silicas have enjoyed great interest among scientists practically from the moment of their discovery thanks to their unique attractive properties. Many types of mesoporous silicas have been described in literature, the most thoroughly MCM-41 and SBA-15 ones. The focus of this review are the methods of syntheses, characterization and use of mesoporous silicas from SBA (Santa Barbara Amorphous) and HMM (Hybrid Mesoporous Materials) groups. The first group is represented by (i) SBA-1 of three-dimensional cubic structure and Pm3n symmetry and (ii) SBA-2 of three-dimensional combined hexagonal and cubic structures and P63/mmc symmetry. The HMM group is represented by (i) HMM-1 of two-dimensional hexagonal structure and p6mm symmetry and (ii) HMM-2 of three-dimensional structure and P63/mmc symmetry. The paper provides comprehensive information on the above-mentioned silica materials available so far, also including the data for the silicas modified with metal ions or/and organic functional groups and examples of the materials applications.
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Affiliation(s)
| | | | - Izabela Nowak
- Faculty of Chemistry, Adam Mickiewicz University in Poznań, Uniwersytetu Poznańskiego 8, 61-614 Poznań, Poland; (S.J.); (A.F.-G.)
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64
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CO oxidation and organic dyes degradation over graphene-Cu and graphene-CuNi catalysts obtained by solution combustion synthesis. Sci Rep 2020; 10:16104. [PMID: 32999310 PMCID: PMC7527964 DOI: 10.1038/s41598-020-72872-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Accepted: 09/07/2020] [Indexed: 01/05/2023] Open
Abstract
Graphene and its analogs in combination with metal nanopowders are among the most promising catalysts for various industry valuable processes. The newly obtained solution combustion synthesized graphene–Cu and graphene–CuNi nanocomposites were examined in heterogeneous catalysis of thermal activated CO oxidation and photoactivated degradation of acid telon blue and direct blue dyes. The nanocomposites are characterized by a closely connected solution combustion synthesized graphene-metal structure with a number of graphene layers from 1 to 3 and fine metal grains sizes of 31 nm (Cu) and 14 nm (CuNi). The experimental data showed the obtained graphene-metal nanocomposites are among the most effective catalysts for CO oxidation with a temperature of 100% conversion of 150 °C and 200 °C for Cu and CuNi containing catalysts, respectively. At the same time, both nanopowders were found inactive for dyes degradation.
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65
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Supported Palladium Nanocatalysts: Recent Findings in Hydrogenation Reactions. Processes (Basel) 2020. [DOI: 10.3390/pr8091172] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
Catalysis has witnessed a dramatic increase on the use of metallic nanoparticles in the last decade, opening endless opportunities in a wide range of research areas. As one of the most investigated catalysts in organic synthesis, palladium finds numerous applications being of significant relevance in industrial hydrogenation reactions. The immobilization of Pd nanoparticles in porous solid supports offers great advantages in heterogeneous catalysis, allowing control of the major factors that influence activity and selectivity. The present review deals with recent developments in the preparation and applications of immobilized Pd nanoparticles on solid supports as catalysts for hydrogenation reactions, aiming to give an insight on the key factors that contribute to enhanced activity and selectivity. The application of mesoporous silicas, carbonaceous materials, zeolites, and metal organic frameworks (MOFs) as supports for palladium nanoparticles is addressed.
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66
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Kheradmandfard M, Mahdavi K, Zargar Kharazi A, Kashani-Bozorg SF, Kim DE. In vitro study of a novel multi-substituted hydroxyapatite nanopowder synthesized by an ultra-fast, efficient and green microwave-assisted method. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2020; 117:111310. [PMID: 32919671 DOI: 10.1016/j.msec.2020.111310] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2020] [Revised: 07/09/2020] [Accepted: 07/17/2020] [Indexed: 12/13/2022]
Abstract
In order to improve the biological activity of hydroxyapatite (HA), a multi-substituted HA (SHA) nanopowder with the chemical composition of Ca9.5Mg0.25Sr0.25(PO4)5.5(SiO4)0.5(OH)1.2F0.8 was synthesized using the microwave-assisted method. X-ray diffraction (XRD), scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and transmission electron microscopy (TEM) revealed that all ions were substituted in the HA crystal lattice. The HA and SHA nanoparticles had a semi-spherical morphology with the average size of 90 and 80 nm, respectively. In-vitro bioactivity assessments showed that after the 28-day immersion of the samples in the simulated body fluid, the morphology of the precipitated apatites on the surface of the HA sample still consisted of spherical particles with a cauliflower-like structure. However, in the SHA sample, the morphology of the precipitated apatites was changed to a nanorod-like one similar to the bone-like apatite, which may be attributed the presence of Sr in the precipitated apatites. The results showed that the release of the substituted ions not only had no adverse effect on the cell viability and cell attachment, but also enhanced the alkaline phosphatase activity of MG63 osteoblast like cells in the SHA group, as compared to the HA and control groups. The results indicated that the simultaneous substitution of Si, Mg, Sr, and F in HA nanoparticles could effectively promote bioactivity, cell proliferation and differentiation. This novel HA composition could be, therefore, well used for implant coating, bone tissue engineering and other orthopedic applications.
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Affiliation(s)
- Mehdi Kheradmandfard
- Department of Mechanical Engineering, Yonsei University, Seoul 03722, South Korea
| | - Kobra Mahdavi
- Biomaterials Nanotechnology and Tissue Engineering faculty, School of Advanced technologies in medicine, Isfahan university of medical sciences, Isfahan, Iran
| | - Anousheh Zargar Kharazi
- Biomaterials Nanotechnology and Tissue Engineering faculty, School of Advanced technologies in medicine, Isfahan university of medical sciences, Isfahan, Iran.
| | | | - Dae-Eun Kim
- Department of Mechanical Engineering, Yonsei University, Seoul 03722, South Korea
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67
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Seo MH, Yoo JY, Jo MS, Yoon JB. Geometrically Structured Nanomaterials for Nanosensors, NEMS, and Nanosieves. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2020; 32:e1907082. [PMID: 32253800 DOI: 10.1002/adma.201907082] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/29/2019] [Revised: 12/18/2019] [Indexed: 06/11/2023]
Abstract
Recently, geometrically structured nanomaterials have received great attention due to their unique physical and chemical properties, which originate from the geometric variation in such materials. Indeed, the use of various geometrically structured nanomaterials has been actively reported in enhanced-performance devices in a wide range of applications. Recent significant progress in the development of geometrically structured nanomaterials and associated devices is summarized. First, a brief introduction of advanced nanofabrication methods that enable the fabrication of various geometrically structured nanomaterials is given, and then the performance enhancements achieved in devices utilizing these nanomaterials, namely, i) physical and gas nanosensors, ii) nanoelectromechanical devices, and iii) nanosieves are described. For the device applications, a systematic summary of their structures, working mechanisms, fabrication methods, and output performance is provided. Particular focus is given to how device performance can be enhanced through the geometric structures of the nanomaterials. Finally, perspectives on the development of novel nanomaterial structures and associated devices are presented.
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Affiliation(s)
- Min-Ho Seo
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
- Center for Bio-Integrated Electronics, Northwestern University, Evanston, IL, 60208, USA
| | - Jae-Young Yoo
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Min-Seung Jo
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
| | - Jun-Bo Yoon
- School of Electrical Engineering, Korea Advanced Institute of Science and Technology (KAIST), 291 Daehak-ro, Yuseong-gu, Daejeon, 34141, Republic of Korea
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68
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Tanasi P, Asensio M, Herrero M, Núñez K, Cañibano E, Merino JC. Control of branches distribution in linear PE copolymers using fibrillar nanoclay as support of catalyst system. POLYMER 2020. [DOI: 10.1016/j.polymer.2020.122707] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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69
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Khalaj M. Preparation of benzo[4,5]thiazolo[3,2-a]chromeno[4,3-d]pyrimidin-6-one derivatives using MgO-MgAl2O4 composite nano-powder. ARAB J CHEM 2020. [DOI: 10.1016/j.arabjc.2020.05.041] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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70
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Synthesis and Characterization of Novel Phyto-Mediated Catalyst, and Its Application for a Selective Oxidation of (VAL) into Vanillin under Visible Light. Catalysts 2020. [DOI: 10.3390/catal10080839] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Here, we report an efficient and highly selective oxidation of lignin model substrate using phyto-mediated ZnFe2O4 nanoparticle using Boswellia carterii extract. The nanocatalyst with an average size of 8 nm showed excellent photocatalytic activity of the synthesized carbonyl containing products under visible light irradiation. The catalytic activity and selectivity towards oxidation of vanillyl alcohol to vanillin with selectivity up to 99% at conversion over 98% and turn-over frequency values up to 1600 h−1 were obtained in the presence of H2O2 and base. The cubic spinel nano-ZnFe2O4 catalyst was characterized by powder-XRD, FESEM, HR-TEM and Mössbauer analysis. The demonstrated catalyst was robust and stable under the reaction conditions. Furthermore, it was easy to be separated from the reaction mixture and be reused for subsequent reactions up to 5 times without significant reactivity or selectivity loss.
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71
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Bismuth as Smart Material and Its Application in the Ninth Principle of Sustainable Chemistry. J CHEM-NY 2020. [DOI: 10.1155/2020/9802934] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
This paper reports an overview of Green Chemistry and the concept of its twelve principles. This study focusses on the ninth principle of Green Chemistry, that is, catalysis. A report on catalysis, in line with its definition, background, classification, properties, and applications, is provided. The study also entails a green element called bismuth. Bismuth’s low toxicity and low cost have made researchers focus on its wide applications in catalysis. It exhibits smartness in all the catalytic activities with the highest catalytic performance among other metals.
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72
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Pyne A, Nandi S, Ghosh M, Roy T, Dhara S, Sarkar N. Denaturant-Mediated Modulation of the Formation and Drug Encapsulation Responses of Gold Nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:7634-7647. [PMID: 32525679 DOI: 10.1021/acs.langmuir.0c01293] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The extensive and diversified applications of the well-known plasmonic nanoparticle systems along with their easy and environment-friendly synthesis strategies drive us to investigate in-depth this important research field. In the current scenario, our present study deals with an important plasmonic nanomaterial, i.e., globular protein, and human serum albumin (HSA)-conjugated gold nanoparticle (HSA-Au NP) system. The well-known chemical denaturants, urea and guanidine hydrochloride (GdnHCl or GnHCl), are investigated to show detrimental effects toward the formation of gold nanoparticles; however, the effect of GdnHCl is observed to be much prominent compared to that of urea. The synthesized nanoparticle system is found to be highly biocompatible from the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT)-based cytotoxicity assay, and therefore, the applications of encapsulation of the well-known anticancer drug molecule, doxorubicin hydrochloride (Dox), in the nanoparticle system are further studied. In this drug encapsulation study, drug-metal complexation between Dox and HAuCl4·3H2O has been discussed elaborately. Similar to the nanoparticle formation, the effects of denaturants on drug encapsulation have also been discovered, and interestingly, it has been observed that urea plays a positive role, whereas GdnHCl plays a negative or detrimental role toward drug encapsulation in the synthesized gold nanoparticle system. The detailed photophysical mechanisms behind the drug encapsulation in the synthesized plasmonic nanosystem at every stage have also been explored. Overall, this study will conclusively explain the influences of the extensively used chemical denaturants on the synthesis and drug encapsulation behaviors of a well-known protein-conjugated gold nanoparticle, and as a consequence, it can be highly useful and acceptable to the biomedical and pharmaceutical research communities.
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73
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Hasan K. Methyl Salicylate Functionalized Magnetic Chitosan Immobilized Palladium Nanoparticles: An Efficient Catalyst for the Suzuki and Heck Coupling Reactions in Water. ChemistrySelect 2020. [DOI: 10.1002/slct.202001933] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Kamrul Hasan
- Kamrul HasanDepartment of ChemistryCollege of SciencesResearch Institute of Science and EngineeringUniversity of Sharjah P.O. Box 27272 Sharjah United Arab Emirates
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74
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Wong PM, Juan JC, Lai JC, Lim TH. Galvanic Replacement-Enabled Synthesis of In(OH) 3/Ag/C Nanocomposite as an Effective Photocatalyst for Ultraviolet C Degradation of Methylene Blue. ACS OMEGA 2020; 5:13719-13728. [PMID: 32566837 PMCID: PMC7301362 DOI: 10.1021/acsomega.0c00881] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Accepted: 05/21/2020] [Indexed: 06/11/2023]
Abstract
Sub-10 nm indium metal nanoparticles (In NPs) stabilized on conductive carbon were reacted with silver nitrate in dark conditions in water at room temperature in a galvanic replacement manner to produce an indium hydroxide/silver/carbon nanocomposite (In(OH)3/Ag/C). The chosen carbon imparted colloidal stability, high surface area, and water dispersibility suitable for photodegradation of harmful dyes in water. The size and shape of indium hydroxide and silver nanoparticles produced were found to be 6.6 ± 0.9 nm, similar to that of the In NPs that were started with. The nanocomposite was characterized by transmission electron microscopy, energy dispersive X-ray spectroscopy, powder X-ray diffraction, and thermogravimetric analysis. The galvanic reaction between In NPs and silver nitrate was tracked with UV-vis spectroscopy in a control experiment without a carbon substrate to confirm that the reaction was indeed thermodynamically spontaneous as indicated by the positive electromotive force (EMF) of +1.14 V calculated for In/Ag+ redox couple. The photocatalytic performance of the nanocomposite was evaluated to be approximately 90% under UVC radiation when 10 ppm of methylene blue and 13 wt % of indium hydroxide/silver loading on carbon were used.
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Affiliation(s)
- Pui Munn Wong
- Department
of Physical Science, Faculty of Applied Sciences, Tunku Abdul Rahman University College, Jalan Genting Kelang, Setapak, Kuala Lumpur 53300, Malaysia
| | - Joon Ching Juan
- Nanotechnology
& Catalysis Research Centre (NANOCAT), Level 3, IPS Building, University of Malaya, 50603 Kuala Lumpur, Malaysia
| | - Jau Choy Lai
- Department
of Bioprocess and Polymer Engineering, School of Chemical & Energy
Engineering, Universiti Teknologi Malaysia, Skudai 81310, Malaysia
| | - Teck Hock Lim
- Department
of Physical Science, Faculty of Applied Sciences, Tunku Abdul Rahman University College, Jalan Genting Kelang, Setapak, Kuala Lumpur 53300, Malaysia
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75
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Iglesias-Mayor A, Amor-Gutiérrez O, Novelli A, Fernández-Sánchez MT, Costa-García A, de la Escosura-Muñiz A. Bifunctional Au@Pt/Au core@shell Nanoparticles As Novel Electrocatalytic Tags in Immunosensing: Application for Alzheimer’s Disease Biomarker Detection. Anal Chem 2020; 92:7209-7217. [DOI: 10.1021/acs.analchem.0c00760] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Alba Iglesias-Mayor
- NanoBioAnalysis Group- Department of Physical and Analytical Chemistry, University of Oviedo, Julián Clavería 8, 33006, Oviedo, Spain
| | - Olaya Amor-Gutiérrez
- NanoBioAnalysis Group- Department of Physical and Analytical Chemistry, University of Oviedo, Julián Clavería 8, 33006, Oviedo, Spain
| | - Antonello Novelli
- Department of Psychology, University of Oviedo, Plaza Feijoo s/n, 33003, Oviedo, Spain
- University Institute of Biotechnology of Asturias (IUBA), University of Oviedo, Doctor Fernando Bongera s/n, 33006, Oviedo, Spain
- Health Research Institute of the Principality of Asturias (ISPA), Hospital Universitario s/n, 33011, Oviedo, Spain
| | - María-Teresa Fernández-Sánchez
- University Institute of Biotechnology of Asturias (IUBA), University of Oviedo, Doctor Fernando Bongera s/n, 33006, Oviedo, Spain
- Department of Biochemistry and Molecular Biology, University of Oviedo, Doctor Fernando Bongera s/n, 33006, Oviedo, Spain
| | - Agustín Costa-García
- NanoBioAnalysis Group- Department of Physical and Analytical Chemistry, University of Oviedo, Julián Clavería 8, 33006, Oviedo, Spain
| | - Alfredo de la Escosura-Muñiz
- NanoBioAnalysis Group- Department of Physical and Analytical Chemistry, University of Oviedo, Julián Clavería 8, 33006, Oviedo, Spain
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76
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Sohail M, Baig N, Sher M, Jamil R, Altaf M, Akhtar S, Sharif M. A Novel Tin-Doped Titanium Oxide Nanocomposite for Efficient Photo-Anodic Water Splitting. ACS OMEGA 2020; 5:6405-6413. [PMID: 32258875 PMCID: PMC7114145 DOI: 10.1021/acsomega.9b03876] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2019] [Accepted: 01/30/2020] [Indexed: 06/11/2023]
Abstract
Herein, we report the expedient synthesis of new nanocomposite Sn0.39Ti0.61O2·TiO2 flakes using simple sol-gel and calcination methods. In order to prepare this material, first, we generated a polymeric gel using cost-effective and easily accessible precursors such as SnCl4, titanium isopropoxide, and tetrahydrofuran (THF). A small amount of triflic acid was used to initiate THF polymerization. The calcination of the resulting gel at 500 °C produced a Sn-Ti bimetallic nanocomposite. This newly synthesized Sn0.39Ti0.61O2·TiO2 was characterized by X-ray diffraction (XRD), energy-dispersive X-ray spectroscopy (EDX), scanning electron microscopy (SEM), transmission electron microscopy (TEM), and UV-visible spectroscopy. The photoelectrochemical (PEC) studies were performed for the first time using Sn0.39Ti0.61O2·TiO2 coated over fluorine-doped tin oxide (FTO) under simulated 1 sun solar radiation. The chronoamperometric study of the Sn0.39Ti0.61O2·TiO2/FTO revealed the repeatable and substantially higher photocurrent for the oxygen evolution reaction (OER) when compared to only TiO2. Moreover, the synthesized material exhibited high stability both in the presence and absence of light. The photocatalytic studies suggested that the sol-gel-synthesized Sn0.39Ti0.61O2·TiO2 can be efficiently used as a photoanode in the water-splitting reaction.
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Affiliation(s)
- Manzar Sohail
- Department
of Chemistry, School of Natural Sciences, National University of Sciences and Technology, Islamabad 45320, Pakistan
| | - Nadeem Baig
- Chemistry
Department, King Fahd University of Petroleum
and Minerals, Dhahran 31261, Saudi Arabia
- Center
for Research Excellence in Desalination and Water Treatment, King Fahd University of Petroleum and Minerals, Dhahran 31261, Saudi Arabia
| | - Muhammad Sher
- Department
of Chemistry, Allama Iqbal Open University, Islamabad 44000, Pakistan
| | - Rabia Jamil
- Department
of Chemistry, School of Natural Sciences, National University of Sciences and Technology, Islamabad 45320, Pakistan
| | - Muhammad Altaf
- Department
of Chemistry, Government College University, Lahore 54000, Pakistan
| | - Sultan Akhtar
- Electron
Microscopy Unit, Institute for Research and Medical Consultations, Imam Abdulrahman Bin Faisal University, Dammam 31441, Saudi Arabia
| | - Muhammad Sharif
- Chemistry
Department, King Fahd University of Petroleum
and Minerals, Dhahran 31261, Saudi Arabia
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77
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Yu Q, Zhao L, Guo C, Yan B, Su G. Regulating Protein Corona Formation and Dynamic Protein Exchange by Controlling Nanoparticle Hydrophobicity. Front Bioeng Biotechnol 2020; 8:210. [PMID: 32266237 PMCID: PMC7100549 DOI: 10.3389/fbioe.2020.00210] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/25/2019] [Accepted: 03/03/2020] [Indexed: 01/19/2023] Open
Abstract
Physiochemical properties of engineered nanoparticles (NPs) play a vital role in nano-bio interactions, which are critical for nanotoxicity and nanomedicine research. To understand the effects of NP hydrophobicity on the formation of the protein corona, we synthesized four gold NPs with a continuous change in hydrophobicity ranging from -2.6 to 2.4. Hydrophobic NPs adsorbed 2.1-fold proteins compared to hydrophilic ones. Proteins with small molecular weights (<50 kDa) and negatively charge (PI < 7) constituted the majority of the protein corona, especially for hydrophobic NPs. Moreover, proteins preferred binding to hydrophilic NPs (vitronectin and antithrombin III), hydrophobic NPs (serum albumin and hemoglobin fetal subunit beta), and medium hydrophobic NPs (talin 1 and prothrombin) were identified. Besides, proteins such as apolipoprotein bound to all NPs, did not show surface preference. We also found that there was a dynamic exchange between hard protein corona and solution proteins. Because of such dynamic exchanges, protein-bound NPs could expose their surface in biological systems. Hydrophilic NPs exhibited higher protein exchange rate than hydrophobic NPs. Above understandings have improved our capabilities to modulate protein corona formation by controlling surface chemistry of NPs. These will also help modulate nanotoxicity and develop better nanomedcines.
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Affiliation(s)
- Qianhui Yu
- School of Environmental Science and Engineering, Shandong University, Qingdao, China
| | - Linxia Zhao
- School of Pharmacy, Nantong University, Nantong, China
| | - Congcong Guo
- School of Environmental Science and Engineering, Shandong University, Qingdao, China
| | - Bing Yan
- School of Environmental Science and Engineering, Shandong University, Qingdao, China
- Key Laboratory for Water Quality and Conservation of the Pearl River Delta, Institute of Environmental Research at Greater Bay, Ministry of Education, Guangzhou University, Guangzhou, China
| | - Gaoxing Su
- School of Pharmacy, Nantong University, Nantong, China
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78
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Nikoofar K, Shahriyari F. Novel bio-based core-shell organic-inorganic nanohybrid from embedding aspartic acid-guanine ionic liquid on the hydroxylated nano silica surface (nano [(Asp-Gua) IL@PEG-SiO2]): A versatile nanostructure for the synthesis of bis(2,3-dihydroquinazolin-4(1H)-one) derivatives and tricarboxamides under green media. Polyhedron 2020. [DOI: 10.1016/j.poly.2020.114361] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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79
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Dasari GK, Sunkara S, Gadupudi PCR. One-step synthesis of magnetically recyclable palladium loaded magnesium ferrite nanoparticles: application in synthesis of anticancer drug PCI-32765. INORG NANO-MET CHEM 2020. [DOI: 10.1080/24701556.2020.1724147] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Affiliation(s)
- Gopala Krishna Dasari
- Department of Chemistry, Jawaharlal Nehru Technological University, Kakinada, Andhra Pradesh, India
- Chemical Research and Development, Shilpa Medicare Limited, Vizianagaram, Andhra Pradesh, India
| | - Satyaveni Sunkara
- Department of Chemistry, Jawaharlal Nehru Technological University, Kakinada, Andhra Pradesh, India
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80
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Essien ER, Atasie VN, Oyebanji TO, Nwude DO. Biomimetic synthesis of magnesium oxide nanoparticles using Chromolaena odorata (L.) leaf extract. CHEMICAL PAPERS 2020. [DOI: 10.1007/s11696-020-01056-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
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81
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Beker SA, Truskewycz A, Cole I, Ball AS. Green synthesis of Opuntia-derived carbon nanodots for the catalytic decolourization of cationic dyes. NEW J CHEM 2020. [DOI: 10.1039/d0nj03013a] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Carbon nanodots, rich in functional groups and synthesised using green precursors, catalyse the decolourization of dyes under mild conditions.
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Affiliation(s)
- Sabrina A. Beker
- Centre for Environmental Sustainability and Remediation
- School of Science
- RMIT University
- Bundoora
- Australia
| | - Adam Truskewycz
- Advanced Manufacturing and Fabrication
- School of Engineering
- RMIT University
- Melbourne
- Australia
| | - Ivan Cole
- Advanced Manufacturing and Fabrication
- School of Engineering
- RMIT University
- Melbourne
- Australia
| | - Andrew S. Ball
- Centre for Environmental Sustainability and Remediation
- School of Science
- RMIT University
- Bundoora
- Australia
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82
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In situ green synthesis of Au/Ag nanostructures on a metal-organic framework surface for photocatalytic reduction of p-nitrophenol. J IND ENG CHEM 2020. [DOI: 10.1016/j.jiec.2019.09.008] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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83
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Nanocatalysts Containing Direct Electron Transfer-Capable Oxidoreductases: Recent Advances and Applications. Catalysts 2019. [DOI: 10.3390/catal10010009] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Direct electron transfer (DET)-capable oxidoreductases are enzymes that have the ability to transfer/receive electrons directly to/from solid surfaces or nanomaterials, bypassing the need for an additional electron mediator. More than 100 enzymes are known to be capable of working in DET conditions; however, to this day, DET-capable enzymes have been mainly used in designing biofuel cells and biosensors. The rapid advance in (semi) conductive nanomaterial development provided new possibilities to create enzyme-nanoparticle catalysts utilizing properties of DET-capable enzymes and demonstrating catalytic processes never observed before. Briefly, such nanocatalysts combine several cathodic and anodic catalysis performing oxidoreductases into a single nanoparticle surface. Hereby, to the best of our knowledge, we present the first review concerning such nanocatalytic systems involving DET-capable oxidoreductases. We outlook the contemporary applications of DET-capable enzymes, present a principle of operation of nanocatalysts based on DET-capable oxidoreductases, provide a review of state-of-the-art (nano) catalytic systems that have been demonstrated using DET-capable oxidoreductases, and highlight common strategies and challenges that are usually associated with those type catalytic systems. Finally, we end this paper with the concluding discussion, where we present future perspectives and possible research directions.
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84
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Phyto-Nanocatalysts: Green Synthesis, Characterization, and Applications. Molecules 2019; 24:molecules24193418. [PMID: 31547052 PMCID: PMC6804184 DOI: 10.3390/molecules24193418] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2019] [Revised: 09/14/2019] [Accepted: 09/18/2019] [Indexed: 01/14/2023] Open
Abstract
Catalysis represents the cornerstone of chemistry, since catalytic processes are ubiquitous in almost all chemical processes developed for obtaining consumer goods. Nanocatalysis represents nowadays an innovative approach to obtain better properties for the catalysts: stable activity, good selectivity, easy to recover, and the possibility to be reused. Over the last few years, for the obtaining of new catalysts, classical methods—based on potential hazardous reagents—have been replaced with new methods emerged by replacing those reagents with plant extracts obtained in different conditions. Due to being diversified in morphology and chemical composition, these materials have different properties and applications, representing a promising area of research. In this context, the present review focuses on the metallic nanocatalysts’ importance, different methods of synthesis with emphasis to the natural compounds used as support, characterization techniques, parameters involved in tailoring the composition, size and shape of nanoparticles and applications in catalysis. This review presents some examples of green nanocatalysts, grouped considering their nature (mono- and bi-metallic nanoparticles, metallic oxides, sulfides, chlorides, and other complex catalysts).
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85
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Magnetic Mesoporous Silica Nanocomposite Functionalized with Palladium Schiff Base Complex: Synthesis, Characterization, Catalytic Efficacy in the Suzuki–Miyaura Reaction and α-Amylase Immobilization. Catal Letters 2019. [DOI: 10.1007/s10562-019-02913-5] [Citation(s) in RCA: 30] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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86
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Gubarev AS, Lezov AA, Mikhailova ME, Senchukova AS, Ubyivovk EV, Nekrasova TN, Girbasova NV, Bilibin AY, Tsvetkov NV. Ag(0) Nanoparticles Stabilized with Poly(Ethylene Glycol)s Modified with Amino Groups: Formation and Properties in Solutions. COLLOID JOURNAL 2019. [DOI: 10.1134/s1061933x19030062] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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87
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Hajinazar S, Sandoval ED, Cullo AJ, Kolmogorov AN. Multitribe evolutionary search for stable Cu-Pd-Ag nanoparticles using neural network models. Phys Chem Chem Phys 2019; 21:8729-8742. [PMID: 30968090 DOI: 10.1039/c9cp00837c] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
We present an approach based on two bio-inspired algorithms to accelerate the identification of nanoparticle ground states. We show that a symbiotic co-evolution of nanoclusters across a range of sizes improves the search efficiency considerably, while a neural network constructed with a recently introduced stratified training scheme delivers an accurate description of interactions in multielement systems. The method's performance has been examined in extensive searches for stable elemental (30-80 atoms), binary (50, 55, and 80 atoms), and ternary (50, 55, and 80 atoms) Cu-Pd-Ag clusters. The best candidate structures identified with the neural network model have consistently lower energy at the density functional theory level compared with those found with traditional interatomic potentials.
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Affiliation(s)
- Samad Hajinazar
- Department of Physics, Applied Physics and Astronomy, Binghamton University, State University of New York, PO Box 6000, Binghamton, New York 13902-6000, USA
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88
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Taghipour S, Hosseini SM, Ataie-Ashtiani B. Engineering nanomaterials for water and wastewater treatment: review of classifications, properties and applications. NEW J CHEM 2019. [DOI: 10.1039/c9nj00157c] [Citation(s) in RCA: 53] [Impact Index Per Article: 10.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Based on their characteristics and applicability, a new category of NMs is proposed for water and wastewater treatment.
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Affiliation(s)
- Shabnam Taghipour
- Department of Civil Engineering
- Sharif University of Technology
- Tehran
- Iran
| | | | - Behzad Ataie-Ashtiani
- Department of Civil Engineering
- Sharif University of Technology
- Tehran
- Iran
- National Centre for Groundwater Research & Training and College of Science & Engineering
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89
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Peres L, Yi D, Bustos-Rodriguez S, Marcelot C, Pierrot A, Fazzini PF, Florea I, Arenal R, Lacroix LM, Warot-Fonrose B, Blon T, Soulantica K. Shape selection through epitaxy of supported platinum nanocrystals. NANOSCALE 2018; 10:22730-22736. [PMID: 30500037 DOI: 10.1039/c8nr07515h] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Supported nanocrystals of original shapes are highly desirable for the development of optimized catalysts; however, conventional methods for the preparation of supported catalysts do not allow shape control. In this work, we have synthesized concave platinum nanocubes exposing {110} crystallographic facets at 20 °C. In the presence of a crystallographically oriented Pt(111) support in the reaction medium, the concave nanocubes grow epitaxially on the support, producing macroscopic nanostructured surfaces. Higher reaction temperature produces a mixture of different nanostructures in solution; however, only the nanostructures growing along the 111 direction are obtained on the Pt(111) support. Therefore, the oriented surface acts as a template for a selective immobilization of specific nanostructures out of a mixture, which can be regarded as an "epitaxial resolution" of an inhomogeneous mixture of nanocrystals. Thus, a judicious choice of the support crystallographic orientation may allow the isolation of original nanostructures that cannot be obtained in a pure form.
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Affiliation(s)
- Laurent Peres
- Laboratoire de Physique et Chimie des NanoObjets (LPCNO), Université de Toulouse, CNRS, INSA, UPS, 135 avenue de Rangueil, 31077 Toulouse, France.
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90
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Behal J, Kaur V, Mrzygłód J, Hoffmann M, Janiak A, Kaur K, Khunt R. Synthesis and Characterization of Rod Like Nano-sized Cobaltammine Complexes as Textile Dyeing Agents. ChemistrySelect 2018. [DOI: 10.1002/slct.201802593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Jagriti Behal
- Department of Chemistry (UGC &DST-FIST Sponsored); Saurashtra University; Rajkot−360005, Gujarat India
| | - Varinder Kaur
- Department of Chemistry; Guru Nanak Dev University; Amritsar- 143005
| | - Jakub Mrzygłód
- Department of Chemistry; Adam Mickiewicz University; 61-614 Poznan Poland
| | - Marcin Hoffmann
- Department of Chemistry; Adam Mickiewicz University; 61-614 Poznan Poland
| | - Agnieszka Janiak
- Department of Chemistry; Adam Mickiewicz University; 61-614 Poznan Poland
| | - Karanjeet Kaur
- Department of Chemistry; Guru Nanak Dev University; Amritsar- 143005
| | - Ranjan Khunt
- Department of Chemistry (UGC &DST-FIST Sponsored); Saurashtra University; Rajkot−360005, Gujarat India
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91
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Peskova M, Ilkovics L, Hynek D, Dostalova S, Sanchez-Carnerero EM, Remes M, Heger Z, Pekarik V. Detergent-modified catalytic and enzymomimetic activity of silver and palladium nanoparticles biotemplated by Pyrococcus furiosus ferritin. J Colloid Interface Sci 2018; 537:20-27. [PMID: 30415098 DOI: 10.1016/j.jcis.2018.11.005] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2018] [Revised: 10/29/2018] [Accepted: 11/03/2018] [Indexed: 11/27/2022]
Abstract
Palladium and silver nanoparticles (NPs) anchored at the outer surface of ferritin form stable suspension of non-coated particles that possess several catalytic and enzymomimetic activities. These activities are strongly affected by detergents that significantly influence the reaction efficiency and specificity. Reductive dehalogenation of various azo dye substrates shows strong differences in reactivity for each substrate-detergent pair. Reductive dehalogenation is negatively influenced by cationic detergents while catalytic depropargylation is severely impaired by polyethylene oxide containing detergents that is an important finding in respect to potential biorthogonal applications. Moreover, Suzuki-Miyaura reaction is promoted by polyethylene oxide containing detergents but some of them also facilitate dehalogenation. Enzymomimetic peroxidase activity of silver NPs can be detected only in presence of sodium dodecyl sulfate (SDS) while peroxidase activity of palladium NPs is enhanced by SDS and sodium deoxycholate.
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Affiliation(s)
- Marie Peskova
- Central European Institute of Technology (CEITEC), Masaryk University, 625 00 Brno, Czech Republic
| | - Ladislav Ilkovics
- Institute of Histology and Embryology, Faculty of Medicine, Masaryk University, 625 00 Brno, Czech Republic
| | - David Hynek
- Department of Chemistry and Biochemistry, Mendel University, 613 00 Brno, Czech Republic, 616 00 Brno, Czech Republic; Central European Institute of Technology (CEITEC), Brno University of Technology, 616 00 Brno, Czech Republic
| | - Simona Dostalova
- Department of Chemistry and Biochemistry, Mendel University, 613 00 Brno, Czech Republic, 616 00 Brno, Czech Republic; Central European Institute of Technology (CEITEC), Brno University of Technology, 616 00 Brno, Czech Republic
| | | | - Marek Remes
- Department of Chemistry and Biochemistry, Mendel University, 613 00 Brno, Czech Republic, 616 00 Brno, Czech Republic; Central European Institute of Technology (CEITEC), Brno University of Technology, 616 00 Brno, Czech Republic
| | - Zbynek Heger
- Department of Chemistry and Biochemistry, Mendel University, 613 00 Brno, Czech Republic, 616 00 Brno, Czech Republic; Central European Institute of Technology (CEITEC), Brno University of Technology, 616 00 Brno, Czech Republic
| | - Vladimir Pekarik
- Institute of Physiology, Faculty of Medicine, Masaryk University, 625 00 Brno, Czech Republic.
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92
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Tharmavaram M, Pandey G, Rawtani D. Surface modified halloysite nanotubes: A flexible interface for biological, environmental and catalytic applications. Adv Colloid Interface Sci 2018; 261:82-101. [PMID: 30243667 DOI: 10.1016/j.cis.2018.09.001] [Citation(s) in RCA: 83] [Impact Index Per Article: 13.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2018] [Revised: 09/01/2018] [Accepted: 09/02/2018] [Indexed: 02/07/2023]
Abstract
Halloysite Nanotubes (HNTs) are clay minerals that possess unique chemical composition and a tubular structure due to which, they have recently emerged as a potential nanomaterial for umpteen applications. Over the years, the myriad applications of HNT have been realized through the surface modification of HNT, which involves the modification of nanotube's inner lumen and the outer surface with different functional compounds. The presence of aluminum and silica groups on the inner and outer surface of HNT enhance the interfacial relationship of the nanotube with different functional agents. Compounds such as alkalis, organosilanes, polymers, compounds of biological origin, surfactants and nanomaterials have been used for the modification of the inner lumen and the outer surface of HNT. The strategies change the constitution of HNT's surface either through micro-disintegration of the surface or by introducing additional functional groups on the surface, which further enhances their potential to be used as a flexible interface for different applications. In this review, the different surface modification strategies of the outer surface and the inner lumen that have been employed over the years have been discussed. The biological, environmental and catalytic applications of these surface modified HNTs with such versatile interface in the past two years have been elaborately discussed as well.
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Affiliation(s)
- Maithri Tharmavaram
- Institute of Research & Development, Gujarat Forensic Sciences University, Sector 9, Near Police Bhawan, Gandhinagar, Gujarat, India
| | - Gaurav Pandey
- Institute of Research & Development, Gujarat Forensic Sciences University, Sector 9, Near Police Bhawan, Gandhinagar, Gujarat, India
| | - Deepak Rawtani
- Institute of Research & Development, Gujarat Forensic Sciences University, Sector 9, Near Police Bhawan, Gandhinagar, Gujarat, India.
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93
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Munsell EV, Fang B, Sullivan MO. Histone-Mimetic Gold Nanoparticles as Versatile Scaffolds for Gene Transfer and Chromatin Analysis. Bioconjug Chem 2018; 29:3691-3704. [PMID: 30350573 DOI: 10.1021/acs.bioconjchem.8b00611] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
Histone-inspired polymer assemblies (polyplexes) can regulate gene expression and subcellular transport in plasmids by harnessing the cellular machinery normally used for histone proteins. When grafted to polyplexes, histone tails promote nuclear accumulation, trigger plasmid DNA (pDNA) release, and enhance transcription. Herein, we developed multifunctional gold nanoparticles (AuNPs) decorated by histone motifs as histone-inspired scaffolds with improved pDNA binding, easy bioimaging, and increased potential for gene delivery and chromatin analysis applications. We hypothesized that polycationic AuNPs coupled to histone motifs would mimic the native presentation of these sequences on the histone octamer and thereby create structures with the capacity to both engage native histone effectors and condense pDNA into nucleosome-inspired nanostructures. AuNPs bearing ∼2 nm cores were prepared based on the well-established Brust-Schiffrin two-phase method involving tetrachloroaurate reduction in the presence of 1-pentanethiol. Solid phase peptide synthesis was employed to generate thiolated polycationic ligands and histone tail motifs, and the AuNPs and peptide ligands were combined in a two-step Murray place exchange reaction at various ratios to produce a collection of polycationic AuNPs modified with varying amounts of histone tails. Electron microscopy and thermal analyses demonstrated that these modified AuNPs exhibited tunable biochemical and biophysical properties that closely mimicked the properties of native histones. The histone-mimetic nanoscaffolds efficiently and sequence-specifically engaged histone effectors responsible for activating transcription. In addition, the nanoscaffolds condensed pDNA into complexes with high stability in the presence of physiological concentrations of heparin, a common extracellular polyanion. These combined properties of histone engagement and high stability led to a ∼6-fold enhancement in transfection efficiency as compared with typical polymeric transfection reagents, with the increased transfection efficiency correlated to the presence and amount of histone tails displayed on the surface of the nanoscaffolds. These findings demonstrate the utility of employing a biomimetic materials design approach to develop more effective and stable delivery vehicles for gene transfer and chromatin analysis applications.
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Affiliation(s)
- Erik V Munsell
- Department of Chemical and Biomolecular Engineering , University of Delaware , 150 Academy Street , Newark , Delaware 19716 , United States
| | - Bing Fang
- Department of Chemical and Biomolecular Engineering , University of Delaware , 150 Academy Street , Newark , Delaware 19716 , United States
| | - Millicent O Sullivan
- Department of Chemical and Biomolecular Engineering , University of Delaware , 150 Academy Street , Newark , Delaware 19716 , United States
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94
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Ruqia B, Choi SI. Pt and Pt-Ni(OH) 2 Electrodes for the Hydrogen Evolution Reaction in Alkaline Electrolytes and Their Nanoscaled Electrocatalysts. CHEMSUSCHEM 2018; 11:2643-2653. [PMID: 29943506 DOI: 10.1002/cssc.201800781] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 06/03/2018] [Indexed: 06/08/2023]
Abstract
The design and synthesis of Pt-based electrocatalysts for the hydrogen evolution reaction (HER) are of great importance for the successful development of hydrogen-based alternative energy technologies. Although Pt is considered to be the most active catalyst for the HER, its reaction performance is limited in alkaline solutions owing to a slow rate for water dissociation. Therefore, many research groups have intensively investigated reaction mechanisms and developed system designs and efficient Pt-based catalysts to enhance the alkaline HER. Herein, we summarize the catalytic surface specificity of Pt and Pt-Ni(OH)2 materials to control the kinetics of the alkaline HER. In particular, we increase our understanding of Ni(OH)2 -modified Pt surfaces and the corresponding nanoscaled Pt-Ni(OH)2 electrocatalysts to improve the sluggish water-dissociation step, and this knowledge will guide us to future sustainable energy applications of advanced nanomaterials.
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Affiliation(s)
- Bibi Ruqia
- Department of Chemistry and Green-Nano Materials Research Centre, Kyungpook National University, Daegu, 41566, Korea
| | - Sang-Il Choi
- Department of Chemistry and Green-Nano Materials Research Centre, Kyungpook National University, Daegu, 41566, Korea
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95
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Inaloo ID, Majnooni S, Esmaeilpour M. Superparamagnetic Fe3
O4
Nanoparticles in a Deep Eutectic Solvent: An Efficient and Recyclable Catalytic System for the Synthesis of Primary Carbamates and Monosubstituted Ureas. European J Org Chem 2018. [DOI: 10.1002/ejoc.201800581] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Iman Dindarloo Inaloo
- Chemistry Department; College of Sciences; Shiraz University; 71946 84795 Shiraz Iran
| | - Sahar Majnooni
- Chemistry Department; University of Isfahan; 81746-73441 Isfahan Iran
| | - Mohsen Esmaeilpour
- Chemistry Department; College of Sciences; Shiraz University; 71946 84795 Shiraz Iran
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96
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Kapoor V, Phan D, Pasha ABMT. Effects of metal oxide nanoparticles on nitrification in wastewater treatment systems: A systematic review. JOURNAL OF ENVIRONMENTAL SCIENCE AND HEALTH. PART A, TOXIC/HAZARDOUS SUBSTANCES & ENVIRONMENTAL ENGINEERING 2018; 53:659-668. [PMID: 29469639 DOI: 10.1080/10934529.2018.1438825] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
While the variety of engineered nanoparticles used in consumer products continues to grow, the use of metal oxide nanoparticles in electronics, textiles, cosmetics and food packaging industry has grown exponentially in recent years, which will inevitably result in their release into wastewater streams in turn impacting the important biological processes in wastewater treatment plants. Among these processes, nitrification play a critical role in nitrogen removal during wastewater treatment, however, it is sensitive to a wide range of inhibitory substances including metal oxide nanoparticles. Therefore, it is essential to systematically asses the effects of metal oxide nanoparticles on nitrification in biological wastewater treatment systems. In this review we discuss the present scenario of metal oxide nanoparticles and their impact on biological wastewater treatment processes, specifically nitrogen removal through nitrification. We also summarize the various methods used to measure nitrification inhibition by metal oxide nanoparticles and highlight corresponding results obtained using those methods. Finally, the key research gaps that need to be addressed in future are discussed.
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Affiliation(s)
- Vikram Kapoor
- a Department of Civil and Environmental Engineering , University of Texas at San Antonio , San Antonio , Texas , USA
| | - Duc Phan
- a Department of Civil and Environmental Engineering , University of Texas at San Antonio , San Antonio , Texas , USA
| | - A B M Tanvir Pasha
- a Department of Civil and Environmental Engineering , University of Texas at San Antonio , San Antonio , Texas , USA
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97
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Geonmonond RS, Silva AGMDA, Camargo PHC. Controlled synthesis of noble metal nanomaterials: motivation, principles, and opportunities in nanocatalysis. AN ACAD BRAS CIENC 2018; 90:719-744. [PMID: 29668801 DOI: 10.1590/0001-3765201820170561] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 09/06/2017] [Indexed: 11/21/2022] Open
Abstract
This review describes some principles of the controlled synthesis of metal nanoparticles, focusing on how the fundamental understanding of their synthesis in the solution-phase can be put to tailor size, shape, composition, and architecture. The maneuvering over these parameters not only enable the tuning of properties, but also the maximization and optimization of performances for various applications. Herein, we start with a brief description of metallic nanoparticles, highlighting the motivation for achieving physicochemical control in their synthesis. After that, we turn our attention to some important definitions and classifications as well as their unique properties such as surface and quantum effects. Moreover, we discuss the strategies for the controlled synthesis of metal nanomaterials based on the top-down and bottom-up approaches, focusing our discussion on their formation mechanisms in liquid-phase in terms of both thermodynamic and kinetic control. Finally, we point out the promising applications of controlled nanomaterials in the field of nanocatalysis and plasmon-enhanced catalysis, describing some of the current challenges in these fields.
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Affiliation(s)
- Rafael S Geonmonond
- Instituto de Química, Departamento de Química Fundamental, Universidade de São Paulo, Avenida Prof. Lineu Prestes, 748, 05508-000 São Paulo, SP, Brazil
| | - Anderson G M DA Silva
- Instituto de Química, Departamento de Química Fundamental, Universidade de São Paulo, Avenida Prof. Lineu Prestes, 748, 05508-000 São Paulo, SP, Brazil
| | - Pedro H C Camargo
- Instituto de Química, Departamento de Química Fundamental, Universidade de São Paulo, Avenida Prof. Lineu Prestes, 748, 05508-000 São Paulo, SP, Brazil
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98
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Singh S, Lo SL. Single-phase cerium oxide nanospheres: An efficient photocatalyst for the abatement of rhodamine B dye. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:6532-6544. [PMID: 29255979 DOI: 10.1007/s11356-017-0902-5] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2017] [Accepted: 12/01/2017] [Indexed: 06/07/2023]
Abstract
Single-phase mesoporous CeO2 nanospheres were synthesized by template-free hydrothermal approach by the synthesis of CeCO3OH precursor combined with the calcination at 350 °C for 3.0 h. Precursor and calcined products were characterized by XRD, TGA, FESEM, EDX, TEM, N2 adsorption-desorption and pore size distribution analysis, UV-vis diffuse reflectance (UV-vis DRS), and photoluminescence (PL) analysis. The morphologies of CeO2 nanospheres were controlled via the optimization of urea concentration during the synthesis. Calcined CeO2 exhibited excellent photocatalytic activity of rhodamine B (RhB) dye degradation under UV-visible irradiation and mild acidic condition. Scavenger test analysis was used to confirm that the hydroxyl radicals, superoxide radicals, and photogenerated holes are the active photoinduced species of RhB degradation. A comparative study of PL intensity, dye adsorption, and zeta potential measurement revealed the efficient dye adsorption over different CeO2 photocatalysts. The RhB degradation rate constant has been found to raise linearly with increase of the surface properties. Repeatability test analysis proved the higher catalytic stability of CeO2 nanospheres without any noticeable loss of activity. Mass spectroscopy and ion chromatography analyses were used to detect the intermediate by-product formation. Finally, based on the results of intermediate detection, possible degradation pathways were also proposed including radical reactions, ring opening, and de-nitrification.
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Affiliation(s)
- Seema Singh
- Graduate Institute of Environmental Engineering, National Taiwan University, 71, Chou-Shan Rd., Taipei, 106, Taiwan
| | - Shang-Lien Lo
- Graduate Institute of Environmental Engineering, National Taiwan University, 71, Chou-Shan Rd., Taipei, 106, Taiwan.
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99
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Almáši M, Zeleňák V, Gyepes R, Bourrelly S, Opanasenko MV, Llewellyn PL, Čejka J. Microporous Lead–Organic Framework for Selective CO2 Adsorption and Heterogeneous Catalysis. Inorg Chem 2018; 57:1774-1786. [DOI: 10.1021/acs.inorgchem.7b02491] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Miroslav Almáši
- Department of Inorganic
Chemistry, Faculty of Science, P. J. Šafárik University, Moyzesova
11, SK-041 54 Košice, Slovak Republic
| | - Vladimír Zeleňák
- Department of Inorganic
Chemistry, Faculty of Science, P. J. Šafárik University, Moyzesova
11, SK-041 54 Košice, Slovak Republic
| | - Róbert Gyepes
- Department of Synthesis and Catalysis, J. Heyrovský Institute of Physical Chemistry of the ASCR, v.v.i., Dolejškova 2155/3, CZ-182 23 Prague 8, Czech Republic
- Department
of Education, University of J. Selye, Bratislavská cesta 3322, SK-945 01 Komárno, Slovak Republic
| | - Sandrine Bourrelly
- Aix-Marseille University, CNRS, MADIREL, F-133 97 Marseille
Cedex 20, France
| | - Maksym V. Opanasenko
- Department of Synthesis and Catalysis, J. Heyrovský Institute of Physical Chemistry of the ASCR, v.v.i., Dolejškova 2155/3, CZ-182 23 Prague 8, Czech Republic
| | - Philip L. Llewellyn
- Aix-Marseille University, CNRS, MADIREL, F-133 97 Marseille
Cedex 20, France
| | - Jiří Čejka
- Department of Synthesis and Catalysis, J. Heyrovský Institute of Physical Chemistry of the ASCR, v.v.i., Dolejškova 2155/3, CZ-182 23 Prague 8, Czech Republic
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100
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Benyettou F, Motte L, Traboulsi H, Mazher J, Pasricha R, Olsen JC, Trabolsi A, Guenin E. Palladium-Loaded Cucurbit[7]uril-Modified Iron Oxide Nanoparticles for C−C Cross-Coupling Reactions. Chemistry 2018; 24:2349-2353. [DOI: 10.1002/chem.201705082] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2017] [Indexed: 12/22/2022]
Affiliation(s)
| | - Laurence Motte
- Inserm, U1148, Laboratory for Vascular Translational Science; UFR SMBH; Université Paris 13, Sorbonne Paris Cité; 74 avenue M. Cachin 93017 Bobigny France
| | - Hassan Traboulsi
- Chemistry Department; College of Sciences; King Faisal University; Al Ahsa 31982 Kingdom of Saudi Arabia
| | - Javed Mazher
- Physics Department; College of Sciences; King Faisal University; Al Ahsa 31982 Kingdom of Saudi Arabia
| | | | - John-Carl Olsen
- Department of Chemistry; University of Rochester, RC Box 270216; Rochester NY 14627 United States of America
| | - Ali Trabolsi
- New York University; Abu Dhabi United Arab Emirates
| | - Erwan Guenin
- Sorbonne Universités; Université de Technologie de Compiègne; Integrated Transformations of Renewable Matter Laboratory (EA TIMR 4297 UTC-ESCOM); rue du Dr Schweitzer 60200 Compiègne France
- Inserm, U1148, Laboratory for Vascular Translational Science; UFR SMBH; Université Paris 13, Sorbonne Paris Cité; 74 avenue M. Cachin 93017 Bobigny France
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