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Heckman MM, Albright MC, Poulsen KM, Tighe RM, Payne CK. Cellular and In Vivo Response to Industrial, Food Grade, and Photocatalytic TiO 2 Nanoparticles. J Phys Chem B 2024. [PMID: 39231525 DOI: 10.1021/acs.jpcb.4c02804] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/06/2024]
Abstract
We encounter titanium dioxide nanoparticles (TiO2 NPs) throughout our daily lives in the form of food coloring, cosmetics, and industrial materials. They are used on a massive industrial scale, with over 1 million metric tons in the global market. For the workers who process these materials, inhalation is a major concern. The goal of our current research is to provide a direct comparison of the three major types of TiO2 NPs (P25, E171, R101) in terms of surface characterization, cellular response, and in vivo response following introduction into the lungs of mice. In both cellular and in vivo experiments, we observe a pro-inflammatory response to the P25 TiO2 NPs that is not observed in the E171 or R101 TiO2 NPs at mass-matched concentrations. Cellular experiments measured a cytokine, TNF-α, as a marker of a pro-inflammatory response. In vivo experiments in mice measured the number of immune cells and four pro-inflammatory cytokines (IL-6, MIP-2, IP-10, and MCP-1) present in bronchoalveolar lavage fluid. A detailed physical and chemical characterization of the TiO2 NPs shows that the P25 TiO2 NPs are distinguished by smaller primary particles suggesting that samples matched by mass contain a larger number of P25 TiO2 NPs. Cellular dose-response measurements with the P25, E171, and R101 TiO2 NPs support this hypothesis showing increased TNF-α release by macrophages as a function of TiO2 NP dose. Overall, this direct comparison of the three major types of TiO2 NPs shows that the number of particles in a dose, which is dependent on the particle diameter, is a key parameter in TiO2 NP-induced inflammation.
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Affiliation(s)
- Morgan M Heckman
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708, United States
| | - Michaela C Albright
- Department of Medicine, Duke University School of Medicine, Durham, North Carolina 27710, United States
| | - Karsten M Poulsen
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708, United States
| | - Robert M Tighe
- Department of Medicine, Duke University School of Medicine, Durham, North Carolina 27710, United States
| | - Christine K Payne
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina 27708, United States
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2
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Liu W, Chung K, Yu S, Lee LP. Nanoplasmonic biosensors for environmental sustainability and human health. Chem Soc Rev 2024. [PMID: 39192761 DOI: 10.1039/d3cs00941f] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/29/2024]
Abstract
Monitoring the health conditions of the environment and humans is essential for ensuring human well-being, promoting global health, and achieving sustainability. Innovative biosensors are crucial in accurately monitoring health conditions, uncovering the hidden connections between the environment and human well-being, and understanding how environmental factors trigger autoimmune diseases, neurodegenerative diseases, and infectious diseases. This review evaluates the use of nanoplasmonic biosensors that can monitor environmental health and human diseases according to target analytes of different sizes and scales, providing valuable insights for preventive medicine. We begin by explaining the fundamental principles and mechanisms of nanoplasmonic biosensors. We investigate the potential of nanoplasmonic techniques for detecting various biological molecules, extracellular vesicles (EVs), pathogens, and cells. We also explore the possibility of wearable nanoplasmonic biosensors to monitor the physiological network and healthy connectivity of humans, animals, plants, and organisms. This review will guide the design of next-generation nanoplasmonic biosensors to advance sustainable global healthcare for humans, the environment, and the planet.
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Affiliation(s)
- Wenpeng Liu
- Department of Medicine, Brigham Women's Hospital, Harvard Medical School, Harvard University, Boston, MA 02115, USA.
| | - Kyungwha Chung
- Department of Medicine, Brigham Women's Hospital, Harvard Medical School, Harvard University, Boston, MA 02115, USA.
- Department of Biophysics, Institute of Quantum Biophysics, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Subin Yu
- Department of Medicine, Brigham Women's Hospital, Harvard Medical School, Harvard University, Boston, MA 02115, USA.
| | - Luke P Lee
- Department of Medicine, Brigham Women's Hospital, Harvard Medical School, Harvard University, Boston, MA 02115, USA.
- Department of Bioengineering, Department of Electrical Engineering and Computer Science, University of California at Berkeley, Berkeley, CA 94720, USA
- Department of Biophysics, Institute of Quantum Biophysics, Sungkyunkwan University, Suwon 16419, Republic of Korea
- Department of Chemistry and Nanoscience, Ewha Womans University, Seoul, 03760, Korea
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3
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Zhou L, Tse TJ, Chicilo F, Shen J, Meda V, Reaney MJT. Utilizing Nano-Adsorbents and Electrostatic Field Treatment for Sustainable Refinement of Crude Canola Oil. Foods 2024; 13:2707. [PMID: 39272472 PMCID: PMC11394375 DOI: 10.3390/foods13172707] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2024] [Revised: 07/19/2024] [Accepted: 08/19/2024] [Indexed: 09/15/2024] Open
Abstract
Removal of polar impurities, such as phospholipids, free fatty acids (FFA), and peroxides, can be challenging during the refining of crude canola oil. Current conventional refining methods are energy-intensive (e.g., hot water washes) and can generate significant waste (e.g., wastewater effluent) and neutral oil loss. This study investigated the joint use of nano-adsorbents and electrostatic field (E-field) treatment as a potential and sustainable alternative in removing these impurities during the oil refining process. Specifically, aluminum oxide (Al2O3) nanoparticles were employed to neutralize FFAs, achieving a 62.4% reduction in acid value while preserving the fatty acid profile of the oil. After refining, E-field treatment was successful in removing the spent nano-adsorbent from solution (up to 72.3% by weight), demonstrating enhanced efficiency compared to conventional methods (e.g., gravitational settling, filtration, and centrifugation). The neutral oil loss using Al2O3 nano-adsorbents was also comparable to conventional refining methods, with a 4.38% (by weight) loss. After E-field treatment, the Al2O3 nano-adsorbent was then calcined to assess reusability. The Al2O3 nano-adsorbent was effectively recycled for three refining cycles. the methods do not use of large amounts of water and generate minimal waste byproducts (e.g., effluent). Nonetheless, while the nano-adsorbents demonstrated promising results in FFA removal, they were less effective in eliminating peroxides and pigments. E-field techniques were also effective in removing spent nano-adsorbent; although, optimization of E-field parameters could further improve its binding capacity. Finally, future studies could potentially focus on the physicochemical modifications of the nano-adsorbent material to enhance their refining capacity and reusability. Overall, this study presents a sustainable alternative or addition to conventional refining methods and lays the groundwork for future research.
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Affiliation(s)
- Li Zhou
- Key Laboratory of Edible Oil Quality and Safety, State Administration for Market Regulation, School of Food Science and Engineering, Wuhan Polytechnic University, Wuhan 430023, China
| | - Timothy J Tse
- Department of Food and Bioproduct Sciences, University of Saskatchewan, Saskatoon, SK S7N 5A8, Canada
| | - Farley Chicilo
- Department of Food and Bioproduct Sciences, University of Saskatchewan, Saskatoon, SK S7N 5A8, Canada
| | - Jianheng Shen
- Department of Food and Bioproduct Sciences, University of Saskatchewan, Saskatoon, SK S7N 5A8, Canada
| | - Venkatesh Meda
- Department of Chemical and Biological Engineering, University of Saskatchewan, Saskatoon, SK S7N 5A9, Canada
| | - Martin J T Reaney
- Department of Food and Bioproduct Sciences, University of Saskatchewan, Saskatoon, SK S7N 5A8, Canada
- Prairie Tide Diversified Inc., Saskatoon, SK S7J 0R1, Canada
- Guangdong Saskatchewan Oilseed Joint Laboratory, Department of Food Science and Engineering, Jinan University, Guangzhou 510632, China
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Safuta M, Valentini C, Ciesielski A, Samorì P. Tailoring electrochemically exfoliated graphene electroactive pathways in cementitious composites for structural health monitoring of constructions. NANOSCALE 2024; 16:15824-15833. [PMID: 39129528 PMCID: PMC11317916 DOI: 10.1039/d4nr01764a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2024] [Accepted: 08/05/2024] [Indexed: 08/13/2024]
Abstract
Manipulating and exerting a nanoscale control over the structure of multicomponent materials represents a powerful strategy for tailoring multifunctional composites for structural health monitoring applications. The use of self-sensing, electroactive cementitious composites in large-scale applications is severely hindered by the absence of clear directives and a thorough understanding of the electrical conduction mechanisms taking place within the cement matrix. Here we report on a nanoscale approach towards this goal which is accomplished via the development of a novel, multifunctional cementitious composite incorporating electrochemically exfoliated graphene (EEG). The use of commercially available poly(carboxylate ether)-based superplasticizer allowed us to embed in the cement mortar up to 0.8 wt% of EEG which is fully dispersed in the matrix. The multiscale investigation made it possible to assess the effect of such high dosages of EEG on the mechanical performance and hydration degree of cementitious composites. We used electrochemical impedance spectroscopy to monitor the formation of electroactive EEG-based percolation paths for charge transfer within cement mortar, the latter displaying resistivities of 2.67 kΩ cm as well as EEG-cement-EEG capacitive paths with capacitance of 2.20 × 10-10 F cm-1 for composites incorporating 0.6 wt% of EEG. Noteworthy, we have proposed here for the first time an electrical equivalent circuit for the impedance spectroscopy analysis of cementitious composites with high loadings of graphene, exceeding the percolation threshold. These findings underscore the potential of nanoscale structures for civil engineering applications and more specifically may open new avenues for the technological application of graphene-based cementitious composites in self-sensing structures.
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Affiliation(s)
- Małgorzata Safuta
- Department of Structural Engineering, Silesian University of Technology, Akademicka 5, 44-100 Gliwice, Poland.
| | - Cataldo Valentini
- Centre for Advanced Technologies, Adam Mickiewicz University, Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
| | - Artur Ciesielski
- Centre for Advanced Technologies, Adam Mickiewicz University, Uniwersytetu Poznańskiego 10, 61-614 Poznań, Poland
- Université de Strasbourg, CNRS, ISIS, 8 allée Gaspard Monge, 67000 Strasbourg, France.
| | - Paolo Samorì
- Université de Strasbourg, CNRS, ISIS, 8 allée Gaspard Monge, 67000 Strasbourg, France.
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Liu B, Cao J, Hong B, You H, Li T, Yu Z, Li D, Liang B, Gan N. A microfluidic chip platform based on Pt nanozyme and magnetized phage composite probes for dual-mode detecting and imaging pathogenic bacteria viability. Talanta 2024; 275:126067. [PMID: 38640522 DOI: 10.1016/j.talanta.2024.126067] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 03/30/2024] [Accepted: 04/05/2024] [Indexed: 04/21/2024]
Abstract
The detection of pathogen viability is critically important to evaluate its infectivity. In the study, an integrated microfluidic chip based on dual-mode analytical strategy was developed to rapidly realize detection of bacteria activity (with Salmonella typhimurium, S.T, as a model analyte). Firstly, the composite probes, including deactivated phage modified magnetic beads and nano Pt-antimicrobial peptide (AMP) which can specifically recognize Gram-negative bacteria as nanozyme were prepared. When the composite probes are introduced into the chip together with target bacteria, after enrichment, oscillating and magnetic separation, they will conjugate with S.T and produce a magnetic sandwich complex. The complex can catalyze tetramethylbenzidine (TMB)-H2O2 to produce visible colorimetric signals which is correspondent to the total S.T content. Simultaneously, PtNPs in the complex can produce hydroxyl radical oxidation (∙OH) by decomposing H2O2. Under the synergistic action of ∙OH and AMP, the captured live S.T can be lysed to release ATP and emit bioluminescence signals which corresponds to the live S.T concentration. Therefore, the chip can simultaneously detect and image S.T at different viability in one test. The dual-mode assay demonstrated high sensitivity (≤33 CFU/mL), high specificity (identifying strain), signal amplification (5 folds) and short time (≤40min). The chip array can detect four samples in one test and exhibited advantages of high-integration, -sensitivity, -specificity and miniaturization, which are suitable to rapidly detect and image pathogen's viability in trace level. The replacement of phage probes can detect other bacteria. It has a wide prospect in pathogens screening.
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Affiliation(s)
- Bailu Liu
- School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang province, 315211, China
| | - Jingya Cao
- School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang province, 315211, China
| | - Binxin Hong
- School of Marine Science, Ningbo University, Ningbo, 315211, China
| | - Hang You
- School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang province, 315211, China
| | - Tianhua Li
- School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang province, 315211, China
| | - Zhenzhong Yu
- School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang province, 315211, China
| | - Dengfeng Li
- School of Marine Science, Ningbo University, Ningbo, 315211, China
| | - Baihui Liang
- Healthy & Intelligent Kitchen Engineering Research Center of Zhejiang Province, Ningbo, 315336, China; Ningbo Fotile Kitchenware Co., Ltd., Ningbo, Zhejiang 315336, China.
| | - Ning Gan
- School of Material Science and Chemical Engineering, Ningbo University, Ningbo, Zhejiang province, 315211, China.
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Kim R, Jo J, Yoon H, Park JW. Ultra-high performance concrete alleviates ecotoxicological effects in aquatic organisms. THE SCIENCE OF THE TOTAL ENVIRONMENT 2024; 928:172538. [PMID: 38636863 DOI: 10.1016/j.scitotenv.2024.172538] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/16/2023] [Revised: 03/23/2024] [Accepted: 04/15/2024] [Indexed: 04/20/2024]
Abstract
With the advancement of cementitious material technologies, ultra-high performance concretes incorporating nano- and(or) micro-sized particle materials have been developed; however, their environmental risks are still poorly understood. This study investigates the ecotoxicological effects of ultra-high performance concrete (UC) leachate by comparing with that of the conventional concrete (CC) leachate. For this purpose, a dynamic leaching test and a battery test with algae, water flea, and zebrafish were performed using standardized protocols. The conductivity, concentration of inorganic elements (Al, K, Na, and Fe), and total organic concentration were lower in the UC leachate than in the CC leachate. The EC50 values of the CC and UC leachates were 44.9 % and >100 % in algae, and 8.0 % and 63.1 % in water flea, respectively. All zebrafish exposed to the CC and UC leachates survived. A comprehensive evaluation of the ecotoxicity of the CC and UC leachate based on the toxicity classification system (TCS) showed that their toxicity classification was "highly acute toxicity" and "acute toxicity", respectively. Based on the hazard quotient and principal component analysis, Al and(or) K could be significant factors determining the ecotoxicity of concrete leachate. Furthermore, the ecotoxicity of UC could not be attributed to the use of silica-based materials or multi-wall carbon nanotubes. This study is the first of its kind on the ecotoxicity of UC leachate in aquatic environments, and the results of this study can be used to develop environment-friendly UC.
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Affiliation(s)
- Rosa Kim
- Environmental Exposure & Toxicology Research Center, Korea Institute of Toxicology (KIT), Jinju 52834, Republic of Korea; Department of Ocean Integrated Science, Chonnam National University, Yeosu 59626, Republic of Korea
| | - Jungman Jo
- Environmental Exposure & Toxicology Research Center, Korea Institute of Toxicology (KIT), Jinju 52834, Republic of Korea
| | - Hakwon Yoon
- Environmental Exposure & Toxicology Research Center, Korea Institute of Toxicology (KIT), Jinju 52834, Republic of Korea; Department of Biological Environment, Kangwon National University, Chuncheon 24341, Republic of Korea.
| | - June-Woo Park
- Environmental Exposure & Toxicology Research Center, Korea Institute of Toxicology (KIT), Jinju 52834, Republic of Korea; Human and Environmental Toxicology Program, Korea University of Science and Technology (UST), 217, Gajeong-ro, Daejeon 34113, Republic of Korea.
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Lippy BE, Brooks SB, Cooper MR, Burrelli LG, Saldivar A, West GH. Characterizing applications, exposure risks, and hazard communication for engineered nanomaterials in construction. Am J Ind Med 2024. [PMID: 38837413 DOI: 10.1002/ajim.23618] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2024] [Accepted: 05/16/2024] [Indexed: 06/07/2024]
Abstract
BACKGROUND Engineered nanomaterials (ENMs) may pose health risks to workers. Objectives were to characterize ENM applications in construction, identify exposure scenarios, and evaluate the quality of safety data sheets (SDSs) for nano-enabled construction products. METHODS SDSs and product data were obtained from a public database of nano-enabled construction products. Descriptive statistics were calculated for affected trades, product categories, and types of ENMs. A sample of SDSs (n = 33) was evaluated using modified criteria developed by NIOSH researchers. Bulk analysis via transmission electron microscopy characterized nanoparticles in a subset of products. RESULTS Companies report using >50 ENMs in construction products. ENM composition could not be determined via SDSs for 38.1% of the 907 products examined. Polymers and metal oxides tied for most frequently reported ENMs (n = 87, 9.6%). Nano silica, graphene, carbon nanotubes, and silver nanoparticles were also frequently reported. Most of the products were paints and coatings (n = 483, 53.3%), followed by pre-market additives, cementitious materials, insulation, and lubricants. Workers in twenty construction trades are likely to handle nano-enabled products, these particularly encompass cement and brick masons, painters, laborers, carpenters, glaziers, and insulators. A wide range of exposure scenarios were identified. SDSs were classified as satisfactory (18%), in need of improvement (12%), or in need of significant improvement (70%). Bulk analyses revealed discrepancies between actual ENM composition and those in SDSs. DISCUSSION AND CONCLUSION There has been significant progress investigating risks to construction workers posed by ENMs, but SDSs need major improvements. This study provides new insights on the use of ENMs in construction, exposure risks, and hazard communication.
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Affiliation(s)
- Bruce E Lippy
- Safety and Health Research Department, CPWR-The Center for Construction Research and Training, Silver Spring, Maryland, USA
- The Lippy Group LLC, Catonsville, Maryland, USA
| | - Sara B Brooks
- Safety and Health Research Department, CPWR-The Center for Construction Research and Training, Silver Spring, Maryland, USA
| | - Michael R Cooper
- Safety and Health Research Department, CPWR-The Center for Construction Research and Training, Silver Spring, Maryland, USA
| | | | | | - Gavin H West
- Safety and Health Research Department, CPWR-The Center for Construction Research and Training, Silver Spring, Maryland, USA
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Hussain A, Parveen F, Saxena A, Ashfaque M. A review of nanotechnology in enzyme cascade to address challenges in pre-treating biomass. Int J Biol Macromol 2024; 270:132466. [PMID: 38761904 DOI: 10.1016/j.ijbiomac.2024.132466] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 05/09/2024] [Accepted: 05/15/2024] [Indexed: 05/20/2024]
Abstract
Nanotechnology has become a revolutionary technique for improving the preliminary treatment of lignocellulosic biomass in the production of biofuels. Traditional methods of pre-treatment have encountered difficulties in effectively degrading the intricate lignocellulosic composition, thereby impeding the conversion of biomass into fermentable sugars. Nanotechnology has enabled the development of enzyme cascade processes that present a potential solution for addressing the limitations. The focus of this review article is to delve into the utilization of nanotechnology in the pretreatment of lignocellulosic biomass through enzyme cascade processes. The review commences with an analysis of the composition and structure of lignocellulosic biomass, followed by a discussion on the drawbacks associated with conventional pre-treatment techniques. The subsequent analysis explores the importance of efficient pre-treatment methods in the context of biofuel production. We thoroughly investigate the utilization of nanotechnology in the pre-treatment of enzyme cascades across three distinct sections. Nanomaterials for enzyme immobilization, enhanced enzyme stability and activity through nanotechnology, and nanocarriers for controlled enzyme delivery. Moreover, the techniques used to analyse nanomaterials and the interactions between enzymes and nanomaterials are introduced. This review emphasizes the significance of comprehending the mechanisms underlying the synergy between nanotechnology and enzymes establishing sustainable and environmentally friendly nanotechnology applications.
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Affiliation(s)
- Akhtar Hussain
- Lignocellulose & Biofuel Laboratory, Department of Biosciences, Integral University, Lucknow 226026, Uttar Pradesh, India
| | - Fouziya Parveen
- Lignocellulose & Biofuel Laboratory, Department of Biosciences, Integral University, Lucknow 226026, Uttar Pradesh, India
| | - Ayush Saxena
- Lignocellulose & Biofuel Laboratory, Department of Biosciences, Integral University, Lucknow 226026, Uttar Pradesh, India
| | - Mohammad Ashfaque
- Lignocellulose & Biofuel Laboratory, Department of Biosciences, Integral University, Lucknow 226026, Uttar Pradesh, India.
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Zhao Y, Shen G, Wang Y, Hao X, Li H. Controlling the Size of Hydrotalcite Particles and Its Impact on the Thermal Insulation Capabilities of Coatings. MATERIALS (BASEL, SWITZERLAND) 2024; 17:2046. [PMID: 38730853 PMCID: PMC11084319 DOI: 10.3390/ma17092046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/12/2024] [Revised: 04/21/2024] [Accepted: 04/23/2024] [Indexed: 05/13/2024]
Abstract
This study focuses on the development of high-performance insulation materials to address the critical issue of reducing building energy consumption. Magnesium-aluminum layered double hydroxides (LDHs), known for their distinctive layered structure featuring positively charged brucite-like layers and an interlayer space, have been identified as promising candidates for insulation applications. Building upon previous research, which demonstrated the enhanced thermal insulation properties of methyl trimethoxysilane (MTS) functionalized LDHs synthesized through a one-step in situ hydrothermal method, this work delves into the systematic exploration of particle size regulation and its consequential effects on the thermal insulation performance of coatings. Our findings indicate a direct correlation between the dosage of MTS and the particle size of LDHs, with an optimal dosage of 4 wt% MTS yielding LDHs that exhibit a tightly interconnected hydrotalcite lamellar structure. This specific modification resulted in the most significant improvement in thermal insulation, achieving a temperature difference of approximately 25.5 °C. Furthermore, to gain a deeper understanding of the thermal insulation mechanism of MTS-modified LDHs, we conducted a thorough characterization of their UV-visible diffuse reflectance and thermal conductivity. This research contributes to the advancement of LDH-based materials for use in thermal insulation applications, offering a sustainable solution to energy conservation in the built environment.
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Affiliation(s)
- Yanhua Zhao
- Guangdong Provincial Key Laboratory of Environmental Health and Land Resource, College of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China; (Y.Z.); (Y.W.)
- Zhaoqing Environmental Functional Materials Engineering Technology Center, College of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China
| | - Guanhua Shen
- Guangdong Provincial Key Laboratory of Environmental Health and Land Resource, College of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China; (Y.Z.); (Y.W.)
- Zhaoqing Environmental Functional Materials Engineering Technology Center, College of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China
| | - Yongli Wang
- Guangdong Provincial Key Laboratory of Environmental Health and Land Resource, College of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China; (Y.Z.); (Y.W.)
- Zhaoqing Environmental Functional Materials Engineering Technology Center, College of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China
| | - Xiangying Hao
- Guangdong Provincial Key Laboratory of Environmental Health and Land Resource, College of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China; (Y.Z.); (Y.W.)
- Zhaoqing Environmental Functional Materials Engineering Technology Center, College of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China
| | - Huining Li
- Zhaoqing Rivers High-Tech Materials Co., Ltd., Zhaoqing 526061, China;
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Khan MRH, Armstrong Z, Lenertz M, Saenz B, Kale N, Li Q, MacRae A, Yang Z, Quadir M. Metal-Organic Framework Induced Stabilization of Proteins in Polymeric Nanoparticles. ACS APPLIED MATERIALS & INTERFACES 2024. [PMID: 38490971 DOI: 10.1021/acsami.3c16534] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/18/2024]
Abstract
Developing protein confinement platforms is an attractive research area that not only promotes protein delivery but also can result in artificial environment mimicking of the cellular one, impacting both the controlled release of proteins and the fundamental protein biophysics. Polymeric nanoparticles (PNPs) are attractive platforms to confine proteins due to their superior biocompatibility, low cytotoxicity, and controllable release under external stimuli. However, loading proteins into PNPs can be challenging due to the potential protein structural perturbation upon contacting the interior of PNPs. In this work, we developed a novel approach to encapsulate proteins in PNPs with the assistance of the zeolitic imidazolate framework (ZIF). Here, ZIF offers an additional protection layer to the target protein by forming the protein@ZIF composite via aqueous-phase cocrystallization. We demonstrated our platform using a model protein, lysozyme, and a widely studied PNP composed of poly(ethylene glycol)-poly(lactic-co-glycolic acid) (PEG-PLGA). A comprehensive study via standard loading and release tests as well as various spectroscopic techniques was carried out on lysozyme loaded onto PEG-PLGA with and without ZIF protection. As compared with the direct protein encapsulation, an additional layer with ZIF prior to loading offered enhanced loading capacity, reduced leaching, especially in the initial stage, led to slower release kinetics, and reduced secondary structural perturbation. Meanwhile, the function, cytotoxicity, and cellular uptake of proteins encapsulated within the ZIF-bound systems are decent. Our results demonstrated the use of ZIF in assisting in protein encapsulation in PNPs and established the basis for developing more sophisticated protein encapsulation platforms using a combination of materials of diverse molecular architectures and disciplines. As such, we anticipate that the protein-encapsulated ZIF systems will serve as future polymer protein confinement and delivery platforms for both fundamental biophysics and biochemistry research and biomedical applications where protein delivery is needed to support therapeutics and/or nutrients.
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Affiliation(s)
- Md Rakib Hasan Khan
- Biomedical Engineering Program, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Zoe Armstrong
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Mary Lenertz
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Briana Saenz
- Department of Chemistry and Biochemistry, St. Mary's University, San Antonio, Texas 78228, United States
| | - Narendra Kale
- Department of Pharmaceutical Sciences, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Qiaobin Li
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Austin MacRae
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Zhongyu Yang
- Department of Chemistry and Biochemistry, North Dakota State University, Fargo, North Dakota 58108, United States
| | - Mohiuddin Quadir
- Biomedical Engineering Program, North Dakota State University, Fargo, North Dakota 58108, United States
- Department of Coatings and Polymeric Materials, North Dakota State University, Fargo, North Dakota 58108, United States
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Tanaka YK, Ogra Y. Quantitative determination of the intracellular uptake of silica nanoparticles using asymmetric flow field flow fractionation coupled with ICP mass spectrometry and their cytotoxicity in HepG2 cells. Arch Toxicol 2024; 98:769-777. [PMID: 38221537 DOI: 10.1007/s00204-023-03672-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2023] [Accepted: 12/14/2023] [Indexed: 01/16/2024]
Abstract
We established a size separation method for silica nanoparticles (SiNPs) measuring 10, 30, 50, 70, and 100 nm in diameter using asymmetric flow field flow fractionation hyphenated with inductively coupled plasma mass spectrometry (AF4-ICP-MS), and evaluated the cytotoxicity of SiNPs in human hepatoma HepG2 cells. Analysis of the mixture sample revealed that nanoparticles of different sizes were eluted at approximately 2-min intervals, with no effect on each elution time or percentage recovery. Compared with larger SiNPs, smaller SiNPs exhibited high cytotoxicity when the volume of SiNPs exposed to the cells was the same. We measured SiNPs in culture medium and inside cells by AF4-ICP-MS and found that approximately 17% of SiNPs in the mixture of five differently sized particles were absorbed by the cells. Transmission electron microscopy revealed that 10 nm SiNPs formed aggregates and accumulated in the cells. Based on AF4-ICP-MS analysis, there is no clear difference in the particle volume absorbed by the cells among different sizes. Therefore, the high toxicity of small SiNPs can be explained by the fact that their large surface area relative to particle volume efficiently induces toxicological influences. Indeed, the large surface area of 10 nm SiNPs significantly contributed to the production of reactive oxygen species.
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Affiliation(s)
- Yu-Ki Tanaka
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo, Chiba, 260-8675, Japan.
| | - Yasumitsu Ogra
- Graduate School of Pharmaceutical Sciences, Chiba University, 1-8-1 Inohana, Chuo, Chiba, 260-8675, Japan
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12
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Othuman Mydin MA, Jagadesh P, Bahrami A, Dulaimi A, Onuralp Özkılıç Y, Omar R. Enhanced fresh and hardened properties of foamed concrete modified with nano-silica. Heliyon 2024; 10:e25858. [PMID: 38420447 PMCID: PMC10900432 DOI: 10.1016/j.heliyon.2024.e25858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 12/25/2023] [Accepted: 02/04/2024] [Indexed: 03/02/2024] Open
Abstract
Nowadays, the application of nanotechnology has gained increased attention in the concrete technology field. Several applications of concrete require light weight; one such concrete used is foamed concrete (FC), which has more voids in the microstructure. In this study, nano-silica (NS) was utilized, which exhibits a pozzolanic nature, and it reacts with other pozzolanic compositions (like lime, alumina, etc.) to form hydrated compounds in concrete. Apart from these hydrated compounds, NS acts as a filler material and enhances properties of concrete such as the fresh and hardened properties. This research examines the fresh, hardened, and microstructural properties of FC blended with NS. The ratio of binder and filler used in this research is 1:1.5, with a water-to-binder ratio of 0.45 and a density of 880 kg/m3. A total of six different weight fractions of NS were added to FC mixes, namely 0%, 1%, 2%, 3%, 4%, and 5%. Properties assessed for FC blended with NS were the slump, bulk density, strength parameters (flexural, splitting tensile, and compressive strengths), morphological analysis, water absorption, and porosity. It was concluded from this study that the optimum NS utilized to improve the properties was 3%. Apart from this, the relationship between the mechanical properties and NS dosages was developed. The correlations between the compressive strength and other properties were analyzed, and relationships were developed based on the best statistical approach. This study helps academicians, researchers, and industrialists enhance the properties of FC blended with NS and their relationships to predict concrete properties from other properties.
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Affiliation(s)
- Md Azree Othuman Mydin
- School of Housing, Building and Planning, Universiti Sains Malaysia, 11800, Penang, Malaysia
| | - P. Jagadesh
- Department of Civil Engineering, Coimbatore Institute of Technology, Tamil Nadu, 638 056, India
| | - Alireza Bahrami
- Department of Building Engineering, Energy Systems and Sustainability Science, Faculty of Engineering and Sustainable Development, University of Gävle, 801 76 Gävle, Sweden
| | - Anmar Dulaimi
- Department of Civil Engineering, College of Engineering, University of Kerbala, Karbala, 56001, Iraq
- Department of Civil Engineering, College of Engineering, University of Warith Al-Anbiyaa, Karbala, 56001, Iraq
| | - Yasin Onuralp Özkılıç
- Department of Civil Engineering, Faculty of Engineering, Necmettin Erbakan University, 42100, Konya, Turkey
- Department of Civil Engineering, Lebanese American University, Byblos, Lebanon
| | - Roshartini Omar
- Department of Construction Management, Faculty of Technology Management and Business, Universiti Tun Hussein Onn Malaysia, Parit Raja, Batu Pahat, Johor, 86400, Malaysia
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13
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Mohtasham Moein M, Rahmati K, Saradar A, Moon J, Karakouzian M. A Critical Review Examining the Characteristics of Modified Concretes with Different Nanomaterials. MATERIALS (BASEL, SWITZERLAND) 2024; 17:409. [PMID: 38255577 PMCID: PMC10817359 DOI: 10.3390/ma17020409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2023] [Revised: 01/03/2024] [Accepted: 01/09/2024] [Indexed: 01/24/2024]
Abstract
The movement of the construction industry towards sustainable development has drawn attention to the revision of concrete. In addition to reducing pollution, the use of nano-materials should lead to the provision of higher quality concrete in terms of regulatory items (workability, resistance characteristics, durability characteristics, microstructure). The present study investigates 15 key characteristics of concrete modified with nano-CaCO3, nano-clay, nano-TiO2, and nano-SiO2. The results of the study showed that nanomaterials significantly have a positive effect on the hydration mechanism and the production of more C-S-H gel. The evaluation of resistance characteristics also indicates the promising results of these valuable materials. The durability characteristics of nano-containing concrete showed significant improvement despite high dispersion. Concrete in coastal areas (such as bridges or platforms), concrete exposed to radiation (such as hospitals), concrete exposed to impact load (such as nuclear power plants), and concrete containing recycled aggregate (such as bricks, tiles, ceramics) can be effectively improved by using nanomaterials. It is hoped that the current review paper can provide an effective image and idea for future applied studies by other researchers.
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Affiliation(s)
| | - Komeil Rahmati
- Department of Civil Engineering, Somesara Branch, Islamic Azad University, Somesara 4361947496, Iran;
| | - Ashkan Saradar
- Department of Civil Engineering, University of Guilan, Rasht 419961377, Iran
| | - Jaeyun Moon
- Department of Mechanical Engineering, University of Nevada, 4505 S Maryland Pkwy, Las Vegas, NV 89154, USA;
| | - Moses Karakouzian
- Department of Civil and Environmental Engineering and Construction, University of Nevada, Las Vegas, NV 89154, USA
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14
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Silva FALS, Chang HP, Incorvia JAC, Oliveira MJ, Sarmento B, Santos SG, Magalhães FD, Pinto AM. 2D Nanomaterials and Their Drug Conjugates for Phototherapy and Magnetic Hyperthermia Therapy of Cancer and Infections. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2023:e2306137. [PMID: 37963826 DOI: 10.1002/smll.202306137] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/20/2023] [Revised: 09/26/2023] [Indexed: 11/16/2023]
Abstract
Photothermal therapy (PTT) and magnetic hyperthermia therapy (MHT) using 2D nanomaterials (2DnMat) have recently emerged as promising alternative treatments for cancer and bacterial infections, both important global health challenges. The present review intends to provide not only a comprehensive overview, but also an integrative approach of the state-of-the-art knowledge on 2DnMat for PTT and MHT of cancer and infections. High surface area, high extinction coefficient in near-infra-red (NIR) region, responsiveness to external stimuli like magnetic fields, and the endless possibilities of surface functionalization, make 2DnMat ideal platforms for PTT and MHT. Most of these materials are biocompatible with mammalian cells, presenting some cytotoxicity against bacteria. However, each material must be comprehensively characterized physiochemically and biologically, since small variations can have significant biological impact. Highly efficient and selective in vitro and in vivo PTTs for the treatment of cancer and infections are reported, using a wide range of 2DnMat concentrations and incubation times. MHT is described to be more effective against bacterial infections than against cancer therapy. Despite the promising results attained, some challenges remain, such as improving 2DnMat conjugation with drugs, understanding their in vivo biodegradation, and refining the evaluation criteria to measure PTT or MHT effects.
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Affiliation(s)
- Filipa A L S Silva
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculdade de Engenharia, Universidade do Porto, Porto, 4200-180, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculdade de Engenharia, Universidade do Porto, Porto, 4200-180, Portugal
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, Porto, 4200-180, Portugal
- INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, Porto, 4200-180, Portugal
| | - Hui-Ping Chang
- Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, TX, 78712, USA
| | - Jean Anne C Incorvia
- Department of Electrical and Computer Engineering, University of Texas at Austin, Austin, TX, 78712, USA
| | - Maria J Oliveira
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, Porto, 4200-180, Portugal
- INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, Porto, 4200-180, Portugal
| | - Bruno Sarmento
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, Porto, 4200-180, Portugal
- INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, Porto, 4200-180, Portugal
- IUCS - CESPU, Rua Central de Gandra 1317, Gandra, 4585-116, Portugal
| | - Susana G Santos
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, Porto, 4200-180, Portugal
- INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, Porto, 4200-180, Portugal
| | - Fernão D Magalhães
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculdade de Engenharia, Universidade do Porto, Porto, 4200-180, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculdade de Engenharia, Universidade do Porto, Porto, 4200-180, Portugal
| | - Artur M Pinto
- LEPABE - Laboratory for Process Engineering, Environment, Biotechnology and Energy, Faculdade de Engenharia, Universidade do Porto, Porto, 4200-180, Portugal
- ALiCE - Associate Laboratory in Chemical Engineering, Faculdade de Engenharia, Universidade do Porto, Porto, 4200-180, Portugal
- i3S - Instituto de Investigação e Inovação em Saúde, Universidade do Porto, Rua Alfredo Allen, 208, Porto, 4200-180, Portugal
- INEB - Instituto de Engenharia Biomédica, Universidade do Porto, Rua Alfredo Allen, 208, Porto, 4200-180, Portugal
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15
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Wu R, Liu Z, Huang Y, Huang L, Wang J, Ding H, Wang Z, Li Q, Zhu C, Liu L, Zhang L, Feng G. Hollow Cobalt Sulfide Nanospheres with Highly Enzyme-like Antibacterial Activities to Accelerate Infected Wound Healing. Bioconjug Chem 2023; 34:1902-1913. [PMID: 37775152 DOI: 10.1021/acs.bioconjchem.3c00403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/01/2023]
Abstract
The emergence of nanozymes presents a promising alternative to antibiotics for reactive oxygen species-mediated broad-spectrum antimicrobial purposes, but nanozymes still face challenges of low therapeutic efficiency and poor biocompatibility. Herein, we creatively prepared a novel kind of hollow cobalt sulfide (CoS) nanospheres with a unique mesoporous structure that is able to provide numerous active sites for enzyme-like reactions. The results revealed that 50 μg/mL of CoS nanospheres exhibited strong peroxidase- and oxidase-like activities under physiological conditions with the assistance of a low concentration of hydrogen peroxide (H2O2, 100 μM) while possessing highly efficient GSH-depletion ability, which endowed CoS nanospheres with triple enzyme-like properties to combat bacterial infections. The in vitro experiments demonstrated that the CoS nanozyme displayed significant antibacterial effects against both Gram-positive Staphylococcus aureus (S. aureus) and Gram-negative Escherichia coli (E. coli). The in vivo implantation showed that the synthesized CoS effectively eliminated bacteria and promoted the recovery of infected wounds in rats while exhibiting a low cytotoxicity. This study provides a promising treatment strategy to accelerate infected wound healing.
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Affiliation(s)
- Ruibang Wu
- Department of Orthopedics Surgery and Orthopedic Research Institute, Analytical & Testing Center, West China Hospital, Sichuan University, Chengdu 610065, China
| | - Zheng Liu
- Department of Orthopedics Surgery and Orthopedic Research Institute, Analytical & Testing Center, West China Hospital, Sichuan University, Chengdu 610065, China
| | - Yong Huang
- Department of Orthopedics Surgery and Orthopedic Research Institute, Analytical & Testing Center, West China Hospital, Sichuan University, Chengdu 610065, China
| | - Leizhen Huang
- Department of Orthopedics Surgery and Orthopedic Research Institute, Analytical & Testing Center, West China Hospital, Sichuan University, Chengdu 610065, China
| | - Juehan Wang
- Department of Orthopedics Surgery and Orthopedic Research Institute, Analytical & Testing Center, West China Hospital, Sichuan University, Chengdu 610065, China
| | - Hong Ding
- Department of Orthopedics Surgery and Orthopedic Research Institute, Analytical & Testing Center, West China Hospital, Sichuan University, Chengdu 610065, China
| | - Zhe Wang
- Department of Orthopedics Surgery and Orthopedic Research Institute, Analytical & Testing Center, West China Hospital, Sichuan University, Chengdu 610065, China
| | - Qiujiang Li
- Department of Orthopedics Surgery and Orthopedic Research Institute, Analytical & Testing Center, West China Hospital, Sichuan University, Chengdu 610065, China
| | - Ce Zhu
- Department of Orthopedics Surgery and Orthopedic Research Institute, Analytical & Testing Center, West China Hospital, Sichuan University, Chengdu 610065, China
| | - Limin Liu
- Department of Orthopedics Surgery and Orthopedic Research Institute, Analytical & Testing Center, West China Hospital, Sichuan University, Chengdu 610065, China
| | - Li Zhang
- Department of Orthopedics Surgery and Orthopedic Research Institute, Analytical & Testing Center, West China Hospital, Sichuan University, Chengdu 610065, China
| | - Ganjun Feng
- Department of Orthopedics Surgery and Orthopedic Research Institute, Analytical & Testing Center, West China Hospital, Sichuan University, Chengdu 610065, China
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16
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Poulsen KM, Albright MC, Niemuth NJ, Tighe RM, Payne CK. Interaction of TiO 2 nanoparticles with lung fluid proteins and the resulting macrophage inflammatory response. ENVIRONMENTAL SCIENCE. NANO 2023; 10:2427-2436. [PMID: 38009084 PMCID: PMC10669912 DOI: 10.1039/d3en00179b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2023]
Abstract
Inhalation is a major exposure route to nanoparticles. Following inhalation, nanoparticles first interact with the lung lining fluid, a complex mixture of proteins, lipids, and mucins. We measure the concentration and composition of lung fluid proteins adsorbed on the surface of titanium dioxide (TiO2) nanoparticles. Using proteomics, we find that lung fluid results in a unique protein corona on the surface of the TiO2 nanoparticles. We then measure the expression of three cytokines (interleukin 6 (IL-6), tumor necrosis factor-alpha (TNF-α), and macrophage inflammatory protein 2 (MIP-2)) associated with lung inflammation. We find that the corona formed from lung fluid leads to elevated expression of these cytokines in comparison to bare TiO2 nanoparticles or coronas formed from serum or albumin. These experiments show that understanding the concentration and composition of the protein corona is essential for understanding the pulmonary response associated with human exposure to nanoparticles.
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Affiliation(s)
- Karsten M Poulsen
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina, USA 27705
| | - Michaela C Albright
- Department of Medicine, Duke University School of Medicine, Durham, North Carolina, USA 27710
| | - Nicholas J Niemuth
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina, USA 27705
- Present address: Department of Biomedical Engineering, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, North Carolina, 27599
| | - Robert M Tighe
- Department of Medicine, Duke University School of Medicine, Durham, North Carolina, USA 27710
| | - Christine K Payne
- Thomas Lord Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina, USA 27705
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17
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Zhao Y, Shen G, Wang Y, Hao X, Li H. Methyl-Trimethoxy-Siloxane-Modified Mg-Al-Layered Hydroxide Filler for Thermal-Insulation Coatings. MATERIALS (BASEL, SWITZERLAND) 2023; 16:4464. [PMID: 37374647 DOI: 10.3390/ma16124464] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2023] [Revised: 06/16/2023] [Accepted: 06/17/2023] [Indexed: 06/29/2023]
Abstract
The development of high-performance insulation materials that facilitate the reduction in building energy consumption is of paramount significance. In this study, magnesium-aluminum-layered hydroxide (LDH) was prepared by the classical hydrothermal reaction. By implementing methyl trimethoxy siloxane (MTS), two different MTS-functionalized LDHs were prepared via a one-step in situ hydrothermal synthesis method and a two-step method. Furthermore, using techniques, such as X-ray diffraction, infrared spectroscopy, particle size analysis, and scanning electron microscopy, we evaluated and analyzed the composition, structure, and morphology of the various LDH samples. These LDHs were then employed as inorganic fillers in waterborne coatings, and their thermal-insulation capabilities were tested and compared. It was found that MTS-modified LDH via a one-step in situ hydrothermal synthesis method (M-LDH-2) exhibited the best thermal insulating properties by displaying a thermal-insulation-temperature difference (ΔT) of 25 °C compared with the blank panel. In contrast, the panels coated with unmodified LDH and the MTS-modified LDH via the two-step method exhibited thermal-insulation-temperature difference values of 13.5 °C and 9.5 °C, respectively. Our investigation involved a comprehensive characterization of LDH materials and coating films, unveiling the underlying mechanism of thermal insulation and establishing the correlation between LDH structure and the corresponding insulation performance of the coating. Our findings reveal that the particle size and distribution of LDHs are critical factors in dictating their thermal-insulation capabilities in the coatings. Specifically, we observed that the MTS-modified LDH, prepared via a one-step in situ hydrothermal approach, possessed a larger particle size and wider particle size distribution, resulting in superior thermal-insulation effectiveness. In contrast, the MTS-modified LDH via the two-step method exhibited a smaller particle size and narrow particle size distribution, causing a moderate thermal-insulation effect. This study has significant implications for opening up the potential for LDH-based thermal-insulation coatings. We believe the findings can promote the development of new products and help upgrade industries, while contributing to local economic growth.
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Affiliation(s)
- Yanhua Zhao
- Guangdong Provincial Key Laboratory of Environmental Health and Land Resource, College of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China
| | - Guanhua Shen
- Guangdong Provincial Key Laboratory of Environmental Health and Land Resource, College of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China
| | - Yongli Wang
- Guangdong Provincial Key Laboratory of Environmental Health and Land Resource, College of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China
| | - Xiangying Hao
- Guangdong Provincial Key Laboratory of Environmental Health and Land Resource, College of Environmental and Chemical Engineering, Zhaoqing University, Zhaoqing 526061, China
| | - Huining Li
- Zhaoqing Rivers High-Tech Materials Co., Ltd., Zhaoqing 526061, China
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18
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Pervaiz M, Ur Rehman M, Ali F, Younas U, Sillanpaa M, Kausar R, Alothman AA, Ouladsmane M, Mazid MA. Biomolecule Protective and Photocatalytic Potential of Cellulose Supported MoS 2/GO Nanocomposite. Bioinorg Chem Appl 2023; 2023:3634726. [PMID: 36936057 PMCID: PMC10019976 DOI: 10.1155/2023/3634726] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2022] [Revised: 09/08/2022] [Accepted: 09/19/2022] [Indexed: 03/11/2023] Open
Abstract
In the current study, cellulose/MoS2/GO nanocomposite has been synthesized by a hydrothermal method. Reports published regarding efficiency of Mo and graphene oxide-based nanocomposites for environmental remediation motivated to synthesize cellulose supported MoS2/GO nanocomposite. Formation of nanocomposite was initially confirmed by UV-visible and FTIR spectroscopic techniques. Particle size and morphology of the nanocomposite were assessed by scanning electron microscopy (SEM), and it was found having particle size ranging from 50 to 80 nm and heterogeneous structure. The XRD analysis also confirmed the structure of the nanocomposite having cellulose, MoS2, and GO. The synthesized nanocomposite was further tested for biomolecule protective potential employing different radical scavenging assays. Results of radical DPPH● (50%) and ABTS ●+ (51%) scavenging studies indicate that nanocomposites can be used as a biomolecule protective agent. In addition, nanocomposite was also evaluated for photocatalytic potential, and the results showed excellent photocatalytic properties for the degradation of 4-nitrophenol up to 75% and methylene blue and methyl orange up to 85% and 70%, respectively. So, this study confirmed that cellulose supported/stabilized MoS2/GO nanocomposite can be synthesized by an ecofriendly, cost-effective, and easy hydrothermal method having promising biomolecule protective and photocatalytic potential.
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Affiliation(s)
- Muhammad Pervaiz
- Department of Chemistry, Government College University, Lahore, Pakistan
| | - Muti Ur Rehman
- Department of Chemistry, The University of Lahore, Lahore, Pakistan
| | - Faisal Ali
- Department of Chemistry, The University of Lahore, Lahore, Pakistan
| | - Umer Younas
- Department of Chemistry, The University of Lahore, Lahore, Pakistan
| | - Mika Sillanpaa
- Department of Biological and Chemical Engineering, Aarhus University, Nørrebrogade 44, Aarhus 8000, Denmark
| | - Rizwan Kausar
- Department of Chemistry, Kallar Kahar Science College, Kallar Kahar, Chakwal, Pakistan
| | - Asma A. Alothman
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohamed Ouladsmane
- Department of Chemistry, College of Science, King Saud University, Riyadh 11451, Saudi Arabia
| | - Mohammad Abdul Mazid
- Department of Pharmaceutical Chemistry, Faculty of Pharmacy, University of Dhaka, Dhaka 1000, Bangladesh
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19
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Ye P, Zhang H, Qu J, Wang J, Zhu X, Hu Q, Ma S. Preparation of recyclable fluorescent electrospinning films and their application in distinguishing and quantitatively analyzing acid gases. POLYM ADVAN TECHNOL 2022. [DOI: 10.1002/pat.5950] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Peng Ye
- State Key Laboratory of Biobased Material and Green Papermaking Qilu University of Technology (Shandong Academy of Sciences) Jinan China
- Faculty of Light Industry Qilu University of Technology (Shandong Academy of Sciences) Jinan China
- Key Laboratory for Green Leather Manufacture Technology of China National Light Industry Council, Faculty of Light Industry Qilu University of Technology (Shandong Academy of Sciences) Jinan China
| | - Haitao Zhang
- State Key Laboratory of Biobased Material and Green Papermaking Qilu University of Technology (Shandong Academy of Sciences) Jinan China
- Faculty of Light Industry Qilu University of Technology (Shandong Academy of Sciences) Jinan China
- Key Laboratory for Green Leather Manufacture Technology of China National Light Industry Council, Faculty of Light Industry Qilu University of Technology (Shandong Academy of Sciences) Jinan China
| | - Jianbo Qu
- State Key Laboratory of Biobased Material and Green Papermaking Qilu University of Technology (Shandong Academy of Sciences) Jinan China
- Faculty of Light Industry Qilu University of Technology (Shandong Academy of Sciences) Jinan China
- Key Laboratory for Green Leather Manufacture Technology of China National Light Industry Council, Faculty of Light Industry Qilu University of Technology (Shandong Academy of Sciences) Jinan China
| | - Jian‐Yong Wang
- State Key Laboratory of Biobased Material and Green Papermaking Qilu University of Technology (Shandong Academy of Sciences) Jinan China
- Faculty of Light Industry Qilu University of Technology (Shandong Academy of Sciences) Jinan China
- Key Laboratory for Green Leather Manufacture Technology of China National Light Industry Council, Faculty of Light Industry Qilu University of Technology (Shandong Academy of Sciences) Jinan China
| | - Xiuzhong Zhu
- State Key Laboratory of Biobased Material and Green Papermaking Qilu University of Technology (Shandong Academy of Sciences) Jinan China
- Faculty of Light Industry Qilu University of Technology (Shandong Academy of Sciences) Jinan China
- Key Laboratory for Green Leather Manufacture Technology of China National Light Industry Council, Faculty of Light Industry Qilu University of Technology (Shandong Academy of Sciences) Jinan China
| | - Qingfei Hu
- State Key Laboratory of Biobased Material and Green Papermaking Qilu University of Technology (Shandong Academy of Sciences) Jinan China
- Faculty of Light Industry Qilu University of Technology (Shandong Academy of Sciences) Jinan China
- Key Laboratory for Green Leather Manufacture Technology of China National Light Industry Council, Faculty of Light Industry Qilu University of Technology (Shandong Academy of Sciences) Jinan China
| | - Shanghong Ma
- State Key Laboratory of Biobased Material and Green Papermaking Qilu University of Technology (Shandong Academy of Sciences) Jinan China
- Faculty of Light Industry Qilu University of Technology (Shandong Academy of Sciences) Jinan China
- Key Laboratory for Green Leather Manufacture Technology of China National Light Industry Council, Faculty of Light Industry Qilu University of Technology (Shandong Academy of Sciences) Jinan China
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20
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Progress in Laser Ablation and Biological Synthesis Processes: "Top-Down" and "Bottom-Up" Approaches for the Green Synthesis of Au/Ag Nanoparticles. Int J Mol Sci 2022; 23:ijms232314658. [PMID: 36498986 PMCID: PMC9736509 DOI: 10.3390/ijms232314658] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2022] [Revised: 11/08/2022] [Accepted: 11/17/2022] [Indexed: 11/25/2022] Open
Abstract
Because of their small size and large specific surface area, nanoparticles (NPs) have special properties that are different from bulk materials. In particular, Au/Ag NPs have been intensively studied for a long time, especially for biomedical applications. Thereafter, they played a significant role in the fields of biology, medical testing, optical imaging, energy and catalysis, MRI contrast agents, tumor diagnosis and treatment, environmental protection, and so on. When synthesizing Au/Ag NPs, the laser ablation and biosynthesis methods are very promising green processes. Therefore, this review focuses on the progress in the laser ablation and biological synthesis processes for Au/Ag NP generation, especially in their fabrication fundamentals and potential applications. First, the fundamentals of the laser ablation method are critically reviewed, including the laser ablation mechanism for Au/Ag NPs and the controlling of their size and shape during fabrication using laser ablation. Second, the fundamentals of the biological method are comprehensively discussed, involving the synthesis principle and the process of controlling the size and shape and preparing Au/Ag NPs using biological methods. Third, the applications in biology, tumor diagnosis and treatment, and other fields are reviewed to demonstrate the potential value of Au/Ag NPs. Finally, a discussion surrounding three aspects (similarity, individuality, and complementarity) of the two green synthesis processes is presented, and the necessary outlook, including the current limitations and challenges, is suggested, which provides a reference for the low-cost and sustainable production of Au/Ag NPs in the future.
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21
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Ngake T, Gulumian M, Cronjé S, Harris R. Modelling and simulation study of the influence of size and surface functionality on the stability of PEG-functionalised AgNPs. MOLECULAR SIMULATION 2022. [DOI: 10.1080/08927022.2022.2141809] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- T. Ngake
- Department of Physics, University of the Free State, Bloemfontein, South Africa
| | - M. Gulumian
- School of Pathology, Haematology and Molecular Medicine, University of the Witwatersrand, and Water Research Group, North West University, Potchefstroom, South Africa
| | - S. Cronjé
- Department of Physics, University of the Free State, Bloemfontein, South Africa
| | - R.A. Harris
- Department of Physics, University of the Free State, Bloemfontein, South Africa
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22
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Wang J, Lu X, Ma B, Tan H. Cement-Based Materials Modified by Colloidal Nano-Silica: Impermeability Characteristic and Microstructure. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:3176. [PMID: 36144962 PMCID: PMC9501928 DOI: 10.3390/nano12183176] [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: 08/11/2022] [Revised: 09/05/2022] [Accepted: 09/09/2022] [Indexed: 06/16/2023]
Abstract
Colloidal nano-silica (CNS) was used to improve the mechanical and impermeability characteristics of mortar in this study. The samples were prepared with 0%, 1%, 2% and 3% (solid content) CNS addition. The mechanical strength and permeability of each mixture was studied, and the mechanism behind was revealed by hydration heat evolution, XRD, DSC-DTG, 29Si MAS-NMR and SEM-EDS analysis. The compressive strength and impermeability characteristics of mortars incorporating CNS were significantly improved. The experimental results demonstrated that the incorporation of CNS promoted the early hydration process of cement, thus increasing the polymerization degree of hydrated calcium silicate, decreasing the porosity, and improving the microstructure of mortar. Furthermore, 3% CNS decreased the Ca/Si ratio of the interfacial transition zone (ITZ) from 3.18 to 2.22, thus the enrichment of CH was reduced and the density and strength were improved. This was mainly because of the high pozzolanic activity of CNS, which consumed plenty of calcium hydroxide and converted to C-S-H. Besides, nanoscale CNS and C-S-H particles filled the voids between hydrates, thus refining the pore size, increasing the complexity of pores, and improving the microstructure of ITZ which contributed to the improvement of the impermeability.
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Affiliation(s)
- Jie Wang
- School of Architectural Engineering, Huanggang Normal University, Huanggang 438000, China
- Huanggang Ecological Architecture and Renewable Resources Research Center, Huanggang 438000, China
| | - Xuesong Lu
- School of Architectural Engineering, Huanggang Normal University, Huanggang 438000, China
- Huanggang Ecological Architecture and Renewable Resources Research Center, Huanggang 438000, China
| | - Baoguo Ma
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China
| | - Hongbo Tan
- School of Architectural Engineering, Huanggang Normal University, Huanggang 438000, China
- State Key Laboratory of Silicate Materials for Architectures, Wuhan University of Technology, Wuhan 430070, China
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23
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Malik R, Joshi N, Tomer VK. Functional graphitic carbon (IV) nitride: A versatile sensing material. Coord Chem Rev 2022. [DOI: 10.1016/j.ccr.2022.214611] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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24
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Metal nanoparticles: biomedical applications and their molecular mechanisms of toxicity. CHEMICAL PAPERS 2022. [DOI: 10.1007/s11696-022-02351-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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25
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Hatch AC, Peloquin D, Kumbar AS, Luxton TP, Clar JG. Transformation of zinc oxide nanoparticles in synthetic lung fluids. JOURNAL OF NANOPARTICLE RESEARCH : AN INTERDISCIPLINARY FORUM FOR NANOSCALE SCIENCE AND TECHNOLOGY 2022; 24:153. [PMID: 35873670 PMCID: PMC9288259 DOI: 10.1007/s11051-022-05527-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/17/2022] [Accepted: 06/30/2022] [Indexed: 06/15/2023]
Abstract
UNLABELLED Surface coatings, including paints, stains, and sealants, have recently become a focus of "nano-enabled" consumer product engineering. Specifically, zinc oxide (ZnO) nanoparticles (NPs) have been introduced to surface coatings to increase UV resistance. As more "nano-enabled" products are made available for purchase, questions arise regarding their long-term environmental and human health effects. This study tracked the transformation of NP additives commonly added to consumer paints and stains using ZnO NPs as a model system. During product application and use, there is a risk of inhalation of aerosolized ZnO NPs. To investigate the potential chemical interactions and transformations that would occur after inhalation, ZnO NPs were incubated in two synthetic lung fluids (SLFs). Initial studies utilized ZnO NPs dispersed in Milli-Q water (control), or a commercially available deck stain. Additionally, two commercially available products advertising the inclusion of ZnO NP additives were evaluated. Subsamples were taken throughout incubation and analyzed via atomic absorption spectroscopy to determine both the total (including particulate) zinc concentration and dissolved (non-particulate) zinc concentration. Results indicate that the vast majority of ZnO transformation takes place within the first 24 h of incubation and is primarily driven by SLF pH and composition complexity. Significant dissolution of ZnO NPs was observed when incubated in Gamble's solution (between 25 and 68% depending on the matrix. Additionally, all ZnO solutions saw near immediate dissolution (~ 98-100%) within 3 h of incubation in artificial lysosomal fluid. Results illustrate potential for NPs in consumer products to undergo significant transformation during use and exposure over short time periods. SUPPLEMENTARY INFORMATION The online version contains supplementary material available at 10.1007/s11051-022-05527-y.
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Affiliation(s)
- Avery C Hatch
- Department of Chemistry, Elon University, Elon, NC 27244 USA
| | - Derek Peloquin
- Oak Ridge Institute for Science and Education (ORISE) Postdoctoral Research Associate, Oak Ridge, USA
| | - Amar S Kumbar
- Analytical and Nanofabrication Laboratory, University of North Carolina, Chapel Hill, NC 27599 USA
| | - Todd P Luxton
- Center for Environmental Solutions and Environmental Response, Office of Research and Development, U.S. Environmental Protection Agency, 5995 Center Hill Avenue, Cincinnati, OH 45224 USA
| | - Justin G Clar
- Department of Chemistry, Elon University, Elon, NC 27244 USA
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26
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Synthesis and Processing Parameter Optimization of Nano-Belite via One-Step Combustion Method. MATERIALS 2022; 15:ma15144913. [PMID: 35888377 PMCID: PMC9322811 DOI: 10.3390/ma15144913] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Revised: 07/08/2022] [Accepted: 07/11/2022] [Indexed: 12/03/2022]
Abstract
This paper proposes a new chemical combustion method for the synthesis of nano-low-carbon belite cement via a simple one-step process without using any oxidizers, and related mechanisms are briefly introduced. The starting materials used, including micro-silica (silica fume) as a byproduct of the metallurgic industry and CaCO3 powders, are of great abundance, and the processing parameters involved were optimized using a series of systematic experiments based on X-ray diffraction (XRD) and the Rietveld fitting method. Besides, the properties of the synthesized belite cement were characterized by the Brunauer–Emmett–Teller (BET) technique and scanning electron microscopy (SEM). Experimental results revealed that the optimized fuel agent was urea with a dosage of 4.902 times that of the starting materials by mass, and the corresponding holding temperature and time were 1150 °C and 2 h, respectively. In addition, the CaO/(SiO2 + CaO) for the starting materials should be set at 62.5% by mass ratio. BET and SEM results showed that the obtained belite cement had a specific surface area of 11.17 m2/g and a size of around 500 nm or even smaller in spherical shapes, suggesting that this method was successfully implemented. Thus, it can be a promising approach for the synthesis of nano-belite particles as a low-carbon construction material, which could be used more in the near future, such as for low-carbon concrete productions.
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27
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Kianpour M, Akbarian M, Uversky VN. Nanoparticles for Coronavirus Control. NANOMATERIALS (BASEL, SWITZERLAND) 2022; 12:1602. [PMID: 35564311 PMCID: PMC9104235 DOI: 10.3390/nano12091602] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/23/2022] [Revised: 05/06/2022] [Accepted: 05/06/2022] [Indexed: 01/18/2023]
Abstract
More than 2 years have passed since the SARS-CoV-2 outbreak began, and many challenges that existed at the beginning of this pandemic have been solved. Some countries have been able to overcome this global challenge by relying on vaccines against the virus, and vaccination has begun in many countries. Many of the proposed vaccines have nanoparticles as carriers, and there are different nano-based diagnostic approaches for rapid detection of the virus. In this review article, we briefly examine the biology of SARS-CoV-2, including the structure of the virus and what makes it pathogenic, as well as describe biotechnological methods of vaccine production, and types of the available and published nano-based ideas for overcoming the virus pandemic. Among these issues, various physical and chemical properties of nanoparticles are discussed to evaluate the optimal conditions for the production of the nano-mediated vaccines. At the end, challenges facing the international community and biotechnological answers for future viral attacks are reviewed.
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Affiliation(s)
- Maryam Kianpour
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung 804, Taiwan;
| | - Mohsen Akbarian
- Department of Chemistry, National Cheng Kung University, Tainan 701, Taiwan
| | - Vladimir N. Uversky
- Department of Molecular Medicine and Health Byrd Alzheimer’s Institute, Morsani College of Medicine, University of South Florida, Tampa, FL 33612, USA
- Laboratory of New Methods in Biology, Institute for Biological Instrumentation of the Russian Academy of Sciences, Federal Research Center ‘‘Pushchino Scientific Center for Biological Research of the Russian Academy of Sciences’’, 142290 Pushchino, Moscow Region, Russia
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28
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Huang H, Xu Y, Luo G, Xie Z, Ming W. Molecular Dynamics Study of Laser Interaction with Nanoparticles in Liquids and Its Potential Application. NANOMATERIALS 2022; 12:nano12091524. [PMID: 35564233 PMCID: PMC9105410 DOI: 10.3390/nano12091524] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/01/2022] [Revised: 04/26/2022] [Accepted: 04/27/2022] [Indexed: 12/02/2022]
Abstract
Laser interaction with nanoparticles in liquid is the fundamental theoretical basis for many applications but it is still challenging to observe this nanoscale phenomenon within a few nanoseconds in liquid by experiment. The successful implementation of the two-temperature method integrated with molecular dynamics (TTM-MD) in laser interaction with bulk material has shown great potential in providing a panoramic view of the laser interaction with the nanoparticles. However, the current TTM-MD model has to divide the system into cubic cells, which leads to mistakes near the nanoparticle’s surface. We introduce the latest model, which performs the TTM-MD on each individual cluster instead of the cubic cells, and its high-performance parallel cluster analysis algorithm to update the cluster size. The cluster-based TTM-MD revealed the nanoparticle formation mechanism of laser fragmentation in liquid (LFL) and facilitated the study of laser fluence’s effect on the size distribution. In addition to LFL, this model is promising to be implemented in the laser thermal therapy of tumors, laser melting in liquid (LML), etc. Although cluster-based TTM-MD has proven to be a powerful tool for studying laser interaction with nanoparticles, a few challenges and future developments for the cluster-based TTM-MD, especially the ionization induced by femtosecond, are also discussed.
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Affiliation(s)
- Hao Huang
- School of Mechanical Science & Engineering, Huazhong University of Science and Technology, Wuhan 430074, China;
| | - Yingjie Xu
- Henan Key Lab of Intelligent Manufacturing of Mechanical Equipment, Zhengzhou University of Light Industry, Zhengzhou 450002, China;
| | - Guofu Luo
- Henan Key Lab of Intelligent Manufacturing of Mechanical Equipment, Zhengzhou University of Light Industry, Zhengzhou 450002, China;
- Correspondence: (G.L.); (W.M.)
| | - Zhuobin Xie
- Guangdong Provincial Key Laboratory of Digital Manufacturing Equipment, Guangdong HUST Industrial Technology Research Institute, Dongguan 523808, China;
| | - Wuyi Ming
- Henan Key Lab of Intelligent Manufacturing of Mechanical Equipment, Zhengzhou University of Light Industry, Zhengzhou 450002, China;
- Correspondence: (G.L.); (W.M.)
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29
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Ewais HA. Adsorption of Malachite Green Cationic Dye from Aqueous Media by Activated Carbon Modified by Nanosilver. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2022. [DOI: 10.1134/s0036024422140096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
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30
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Chen Z, Guo Z, Niu J, Xu N, Sui X, Kareem HA, Hassan MU, Yan M, Zhang Q, Wang Z, Mi F, Kang J, Cui J, Wang Q. Phytotoxic effect and molecular mechanism induced by graphene towards alfalfa (Medicago sativa L.) by integrating transcriptomic and metabolomics analysis. CHEMOSPHERE 2022; 290:133368. [PMID: 34933027 DOI: 10.1016/j.chemosphere.2021.133368] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/25/2021] [Revised: 12/16/2021] [Accepted: 12/17/2021] [Indexed: 06/14/2023]
Abstract
Although the widespread use of nanoparticles has been reported in various fields, the toxic mechanisms of molecular regulation involved in the alfalfa treated by nanomaterials is still in the preliminary research stage. In this study, Bara 310 SC (Bara, tolerant genotype) and Gold Empress (Gold, susceptible genotype) were used to investigate how the leaves of alfalfa interpret the physiological responses to graphene stress based on metabolome and transcriptome characterizations. Herein, graphene at different concentrations (0, 1% and 2%, w/w) were selected as the analytes. Physiological results showed antioxidant defence system and photosynthesis was significantly disturbed under high environmental concentration of graphene. With Ultra high performance liquid chromatography electrospray tandem mass spectrometry (UPLC-ESI-MS/MS), 406 metabolites were detected and 62/13 and 110/58 metabolites significantly changed in the leaves of Gold/Bara under the 1% and 2%-graphene treatments (w/w), respectively. The most important metabolites which were accumulated under graphene stress includes amino acids, flavonoids, organic acids and sugars. Transcriptomic analysis reveals 1125 of core graphene-responsive genes in alfalfa that was robustly differently expressed in both genotypes. And differential expression genes (DEGs) potentially related to photosynthetic enzymes, antioxidant enzymes, amino acids metabolism, and sucrose and starch metabolic which finding was supported by the metabolome study. Gold was more disturbed by graphene stress at both transcriptional and metabolic levels, since more stress-responsive genes/metabolites were identified in Gold. A comprehensive analysis of transcriptomic and metabolomic data highlights the important role of amino acid metabolism and nicotinate and nicotinamide metabolism pathways for graphene tolerance in alfalfa. Our study provide necessary information for better understanding the phytotoxicity molecular mechanism underlying nanomaterials tolerance of plant.
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Affiliation(s)
- Zhao Chen
- College of Grassland Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi Province, China
| | - Zhipeng Guo
- College of Grassland Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi Province, China
| | - Junpeng Niu
- College of Grassland Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi Province, China
| | - Nan Xu
- College of Grassland Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi Province, China
| | - Xin Sui
- College of Grassland Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi Province, China
| | - Hafiz Abdul Kareem
- College of Grassland Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi Province, China
| | - Mahmood Ul Hassan
- College of Grassland Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi Province, China
| | - Mingke Yan
- College of Grassland Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi Province, China
| | - Quan Zhang
- Jiuquan Daye Seed Industry Co. Ltd., Jiefang Road 325#, Suzhouqu, Jiuquan, 735000, Gansu Province, China
| | - Zhaolan Wang
- Institute of Grassland Research, Chinese Academy of Agricultural Science, Hohhot, 010010, Inner Mongolia, China
| | - Fugui Mi
- College of Grassland, Resources and Environment, Inner Mongolia Agricultural University, Hohhot, 010010, Inner Mongolia, China
| | - Junmei Kang
- Institute of Animal Science, Chinese Academy of Agricultural Science, Beijing, 100094, China
| | - Jian Cui
- College of Life Sciences, Northwest A&F University, Yangling, 712100, Shaanxi Province, China
| | - Quanzhen Wang
- College of Grassland Agriculture, Northwest A&F University, Yangling, 712100, Shaanxi Province, China.
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31
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Gnanasekaran L, Priya AK, Gracia F. Orange peel extract influenced partial transformation of SnO 2 to SnO in green 3D-ZnO/SnO 2 system for chlorophenol degradation. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127464. [PMID: 34653855 DOI: 10.1016/j.jhazmat.2021.127464] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/28/2021] [Revised: 09/24/2021] [Accepted: 10/06/2021] [Indexed: 06/13/2023]
Abstract
In recent times, visible light enhancement has become much more considered due to the enlightening properties of nanocomposite systems. This has potential applications for wastewater treatment due to the blemish of toxic organic chemicals from industrial sectors. Therefore, this work is focused on novel 3D ZnO/SnO2 nanocomposites synthesized by the green method (orange peel extracts supported combined chemical processes) utilized for the removal of chlorophenol effluent. The orange peel extract has been incorporated as one of the major components to synthesize an effective nanocomposite. Also, the pure materials were synthesized along with these nanocomposites and tested under various instrumental techniques. The characterized results showed that the composites prepared with orange peel extract exhibited hexagonal 3D ZnO nanospheres with 3D tetragonal structured SnO2 nanocubes. Elemental analysis showed that the partial amount of SnO2 has transformed to SnO due to the reducing ability of orange peel extract. Also, the existing different (Zn2+, Sn4+, and Sn2+) states helped in delaying the transfer of electron-hole recombination to obtain photocatalytic chlorophenol degradation. Further, the prevailing line dislocation can compromise more vacancy and interact with more electrons. The high surface area, least crystallite size, and lower bandgap inspired to enhance the visible light activity. Simultaneously, the pure form of nanomaterial has poor light absorption under visible light. This study achieves the photocatalytic degradation of 77.5% against chlorophenol using a green 3D composite system.
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Affiliation(s)
- Lalitha Gnanasekaran
- Departamento de Ingeniería Mecánica, Facultad de Ingeniería, Universidad de Tarapacá, Avda. General Velásquez 1775, Arica, Chile.
| | - A K Priya
- Department of Civil Engineering, KPR Institute of Engineering and Technology, Coimbatore 641027, India
| | - F Gracia
- Department of Chemical Engineering, Biotechnology and Materials, University of Chile, Beauchef 851, 6th floor, Santiago, Chile
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32
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Phase-Selective Synthesis of Anatase and Rutile TiO2 Nanocrystals and Their Impacts on Grapevine Leaves: Accumulation of Mineral Nutrients and Triggering the Plant Defense. NANOMATERIALS 2022; 12:nano12030483. [PMID: 35159827 PMCID: PMC8838626 DOI: 10.3390/nano12030483] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2022] [Revised: 01/26/2022] [Accepted: 01/27/2022] [Indexed: 01/27/2023]
Abstract
Titanium dioxide nanocrystals (TiO2 NCs), through their photocatalytic activity, are able to generate charge carriers and induce the formation of various reactive oxygen species (ROS) in the presence of O2 and H2O. This special feature makes TiO2 an important and promising material in several industrial applications. Under appropriate antioxidant balancing, the presence of ROS is crucial in plant growth and development, therefore, the regulated ROS production through the photocatalytic activity of TiO2 NCs may be also exploited in the agricultural sector. However, the effects of TiO2 NCs on plants are not fully understood and/or phase-pure TiO2 NCs are rarely used in plant experiments. In this work, we present a phase-selective synthesis of TiO2 NCs with anatase and rutile crystal phases. The nanomaterials obtained were characterized by means of X-ray diffraction (XRD), transmission electron microscopy (TEM), diffuse reflectance UV-Vis spectroscopy, and electron paramagnetic resonance spectroscopy (EPR). In field experiments, Vitis vinifera cv. Cabernet Sauvignon leaves developed under natural sunlight were treated with aqueous dispersions of TiO2 NCs at concentrations of 0.001, 0.01, 0.1, and 1 w/v%. The effect of the applied nanocrystals was characterized via leaf photochemistry, mineral nutrient contents, and pyridoxine levels. We found that stress responses of grapevine to anatase and rutile NCs treatments are different, which can be related to the different ROS profiles of the two polymorphs. Our results indicate that TiO2 NCs may be utilized not only for direct pathogen inactivation but also for eliciting plant defense mechanisms.
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33
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Onyszko M, Markowska-Szczupak A, Rakoczy R, Paszkiewicz O, Janusz J, Gorgon-Kuza A, Wenelska K, Mijowska E. The cellulose fibers functionalized with star-like zinc oxide nanoparticles with boosted antibacterial performance for hygienic products. Sci Rep 2022; 12:1321. [PMID: 35079098 PMCID: PMC8789781 DOI: 10.1038/s41598-022-05458-7] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2021] [Accepted: 01/12/2022] [Indexed: 12/16/2022] Open
Abstract
Bacterial infectious diseases are serious health problem which extends to economic and social complications. Moreover, bacterial antibiotic resistance, lack of suitable vaccine or emergence of new mutations is forcing the development of novel antimicrobial agents. The objective of this study is to synthesize and characterize star-like zinc oxide nanoparticles for the application of antibacterial activities in cellulose based hygiene products. ZnO NPs were in situ synthesized via precipitation method on the surface of cellulose fibers. Since bactericidal activity of nanoparticles in part depends on the concentration in the growth medium, various amount of ZnO was incorporated into cellulose matrix ranging from 1 to 3 wt%. Microscopic (TEM, SEM) and spectroscopic (FT-IR, XRD) methods were utilized to investigate the final products. The infrared absorption spectra analysis supported by theoretical finding that during the reaction, ZnO nanoparticles could be bonded with cellulose fibers via hydrogen bonding. The yield of functionalization was determined through thermogravimetric analysis. Collected data proved the successful functionalization of the cellulose fibers with nanoparticles. Static contact angle measurements were carried out showing absorptive character of as prepared fabrics. All the samples were tested for the antibacterial properties and the results were compared to the samples prepared from the pristine cellulose fibers. Moreover, mechanical tests were performed revealing that the addition of only 2 wt% of the nanofiller boosted tensile, tearing and bursting strength by a factor of 1.6, 1.4 and 2.2 in comparison to unfunctionalized paper sample, respectively. Fabricated fabric presenting high hydrophilicity and antibacterial properties have gained increased applications in fabric industry, including hygiene product industry and hence the result of this study would be a welcomed option.
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Affiliation(s)
- M Onyszko
- Department of Nanomaterials Physicochemistry, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, Piastow Ave. 42, 71-065, Szczecin, Poland
| | - A Markowska-Szczupak
- Department of Chemical and Process Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, Piastow Ave. 42, 71-065, Szczecin, Poland
| | - R Rakoczy
- Department of Chemical and Process Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, Piastow Ave. 42, 71-065, Szczecin, Poland
| | - O Paszkiewicz
- Department of Chemical and Process Engineering, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, Piastow Ave. 42, 71-065, Szczecin, Poland
| | - J Janusz
- Arctic Paper Kostrzyn SA, ul. Fabryczna 1, 66-470, Kostrzyn nad Odra, Poland
| | - A Gorgon-Kuza
- Arctic Paper Kostrzyn SA, ul. Fabryczna 1, 66-470, Kostrzyn nad Odra, Poland
| | - K Wenelska
- Department of Nanomaterials Physicochemistry, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, Piastow Ave. 42, 71-065, Szczecin, Poland.
| | - E Mijowska
- Department of Nanomaterials Physicochemistry, Faculty of Chemical Technology and Engineering, West Pomeranian University of Technology, Szczecin, Piastow Ave. 42, 71-065, Szczecin, Poland
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34
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On the Role of Atmospheric Weathering on Paint Dust Aerosol Generated by Mechanical Abrasion of TiO 2 Containing Paints. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:ijerph19031265. [PMID: 35162289 PMCID: PMC8834889 DOI: 10.3390/ijerph19031265] [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: 12/31/2021] [Revised: 01/18/2022] [Accepted: 01/21/2022] [Indexed: 11/17/2022]
Abstract
In recent years, the introduction and use of new nanomaterials in construction has increased at a rapid rate. Exterior surface paints have been a product that have had these nanomaterials added to them. In this study, the effects of natural weathering and exposure to atmospheric agents was examined to determine the detrimental effects on outdoor paint that has been created with nanomaterials. Data collected over the course of the yearlong study indicate that the nanoparticles of the titanium dioxide were eliminated rapidly. Further testing indicated that various elements of weathering were affecting the physical integrity of the paint. The weathering agents that appeared to have the greatest effect on the samples were acid deposition and total precipitation. There was a strong association between carbon monoxide and the effects on the panels. These results can lead to new plans for assessments involving the synergistic effects of all weathering agents.
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35
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Singh D, Marrocco A, Wohlleben W, Park HR, Diwadkar AR, Himes BE, Lu Q, Christiani DC, Demokritou P. Release of particulate matter from nano-enabled building materials (NEBMs) across their lifecycle: Potential occupational health and safety implications. JOURNAL OF HAZARDOUS MATERIALS 2022; 422:126771. [PMID: 34391975 PMCID: PMC8595827 DOI: 10.1016/j.jhazmat.2021.126771] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/23/2021] [Revised: 07/20/2021] [Accepted: 07/26/2021] [Indexed: 05/11/2023]
Abstract
The present study investigates potential nanomaterial releases and occupational health risks across the lifecycle of nano-enabled building materials (NEBMs), namely, insulations and coatings. We utilized real-world degradation scenarios of a) sanding (mechanical), b) incineration (thermal), and c) accelerated UV-aging (environmental) followed by incineration. Extensive physicochemical characterization of the released lifecycle particulate matter (LCPM) was performed. The LCPM2.5 aerosol size fraction was used to assess the acute biological, cytotoxic and inflammatory effects on Calu-3 human lung epithelial cells. RNA-Seq analysis of exposed cells was performed to assess potential for systemic disease. Findings indicated that release dynamics and characteristics of LCPM depended on both the NEBM composition and the degradation scenario(s). Incineration emitted a much higher nanoparticle number concentration than sanding (nearly 4 orders of magnitude), which did not change with prior UV-aging. Released nanofillers during sanding were largely part of the matrix fragments, whereas those during incineration were likely physicochemically transformed. The LCPM from incineration showed higher bioactivity and inflammogenicity compared to sanding or sequential UV-aging and incineration, and more so when metallic nanofillers were present (such as Fe2O3). Overall, the study highlights the need for considering real-world exposure and toxicological data across the NEBM lifecycle to perform adequate risk assessments and to ensure workplace health and safety.
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Affiliation(s)
- Dilpreet Singh
- Center for Nanotechnology and Nanotoxicology, Harvard T.H. Chan School of Public Health, Harvard University, 665 Huntington Ave., Boston, MA 02115, USA
| | - Antonella Marrocco
- Center for Nanotechnology and Nanotoxicology, Harvard T.H. Chan School of Public Health, Harvard University, 665 Huntington Ave., Boston, MA 02115, USA
| | | | - Hae-Ryung Park
- Department of Environmental Medicine, School of Medicine and Dentistry, University of Rochester, NY 14642, USA
| | - Avantika R Diwadkar
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Blanca E Himes
- Department of Biostatistics, Epidemiology and Informatics, University of Pennsylvania, Philadelphia, PA 19104, USA
| | - Quan Lu
- Molecular and Integrative Physiological Sciences, Department of Environmental Health, T.H. Chan School of Public Health, Harvard University, 665 Huntington Ave., Boston, MA 02115, USA
| | - David C Christiani
- Center for Nanotechnology and Nanotoxicology, Harvard T.H. Chan School of Public Health, Harvard University, 665 Huntington Ave., Boston, MA 02115, USA
| | - Philip Demokritou
- Center for Nanotechnology and Nanotoxicology, Harvard T.H. Chan School of Public Health, Harvard University, 665 Huntington Ave., Boston, MA 02115, USA.
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36
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Makgabutlane B, Maubane-Nkadimeng MS, Coville NJ, Mhlanga SD. Plastic-fly ash waste composites reinforced with carbon nanotubes for sustainable building and construction applications: A review. RESULTS IN CHEMISTRY 2022. [DOI: 10.1016/j.rechem.2022.100405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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37
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Chinthalapudi N, Kommaraju VVD, Kannan MK, Nalluri CB, Varanasi S. Composites of cellulose nanofibers and silver nanoparticles for malachite green dye removal from water. CARBOHYDRATE POLYMER TECHNOLOGIES AND APPLICATIONS 2021. [DOI: 10.1016/j.carpta.2021.100098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022] Open
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38
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Tian D, Guo Y, Huang M, Zhao L, Deng S, Deng O, Zhou W, Hu J, Shen F. Bacterial cellulose/lignin nanoparticles composite films with retarded biodegradability. Carbohydr Polym 2021; 274:118656. [PMID: 34702475 DOI: 10.1016/j.carbpol.2021.118656] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2021] [Revised: 08/18/2021] [Accepted: 09/06/2021] [Indexed: 11/20/2022]
Abstract
In practical applications, the full biodegradability of all-biomass-based bacterial cellulose (BC) composites enhances their environmentally friendliness but results in the poor durability especially at humid conditions. This work prepared BC/lignin nanoparticles (LNPs) composite films with retarded biodegradability, which could broaden their application area. Three LNPs were fabricated using technical lignins extracted by deep eutectic solvent (DES), ethanol organosolv, soda/anthraquinone from poplar. LNPs involvement during BC fermentation showed limited influence on its productivity but significantly retarded the biodegradation of composite films. The potential inhibition mechanism was physical barrier and non-productive binding of LNPs. The BC/Soda LNPs showed much higher retarded degradation property (~58 wt% degradation) compared to BC/Organosolv LNPs and BC/DES LNPs (~85 wt% and ~ 97 wt% degradation respectively) at high enzyme loadings of 5 mg g-1 BCE. While at low enzyme loadings of 1 mg g-1 BCE, all these three composite films showed comparable retarded degradation property of ~60 wt%.
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Affiliation(s)
- Dong Tian
- Institute of Ecological and Environmental Sciences, Sichuan Agricultural University, Chengdu, Sichuan 611130, PR China.
| | - Yujie Guo
- Institute of Ecological and Environmental Sciences, Sichuan Agricultural University, Chengdu, Sichuan 611130, PR China
| | - Mei Huang
- Institute of Ecological and Environmental Sciences, Sichuan Agricultural University, Chengdu, Sichuan 611130, PR China
| | - Li Zhao
- Institute of Ecological and Environmental Sciences, Sichuan Agricultural University, Chengdu, Sichuan 611130, PR China
| | - Shihuai Deng
- Institute of Ecological and Environmental Sciences, Sichuan Agricultural University, Chengdu, Sichuan 611130, PR China
| | - Ouping Deng
- College of Resources, Sichuan Agricultural University, Chengdu, Sichuan 611130, PR China
| | - Wei Zhou
- College of Resources, Sichuan Agricultural University, Chengdu, Sichuan 611130, PR China
| | - Jinguang Hu
- Department of Chemical and Petroleum Engineering, University of Calgary, 2500 University Dr. NW, Calgary, AB T2N 1N4, Canada
| | - Fei Shen
- Institute of Ecological and Environmental Sciences, Sichuan Agricultural University, Chengdu, Sichuan 611130, PR China.
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39
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Fluorescence quenching and related interactions among globular proteins (BSA and lysozyme) in presence of titanium dioxide nanoparticles. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127253] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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40
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Recent Advancements in the Nanomaterial Application in Concrete and Its Ecological Impact. MATERIALS 2021; 14:ma14216387. [PMID: 34771911 PMCID: PMC8585191 DOI: 10.3390/ma14216387] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Revised: 10/01/2021] [Accepted: 10/05/2021] [Indexed: 12/22/2022]
Abstract
At present, nanotechnology is a significant research area in different countries, owing to its immense ability along with its economic impact. Nanotechnology is the scientific study, development, manufacturing, and processing of structures and materials on a nanoscale level. It has tremendous application in different industries such as construction. This study discusses the various progressive uses of nanomaterials in concrete, as well as their related health risks and environmental impacts. Nanomaterials such as nanosilica, nano-TiO2, carbon nanotubes (CNTs), ferric oxides, polycarboxylates, and nanocellulose have the capability to increase the durability of buildings by improving their mechanical and thermal properties. This could cause an indirect reduction in energy usage and total expenses in the concrete industry. However, due to the uncertainties and irregularities in size, shape, and chemical compositions, some nanosized materials might have harmful effects on the environment and human health. Acknowledgement of the possible beneficial impacts and inadvertent dangers of these nanosized materials to the environment will be extremely important when pursuing progress in the upcoming years. This research paper is expected to bring proper attention to the probable effects of construction waste, together with the importance of proper regulations, on the final disposal of the construction waste.
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41
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Sorout N, Chandra A. Interactions of the Aβ(1-42) Peptide with Boron Nitride Nanoparticles of Varying Curvature in an Aqueous Medium: Different Pathways to Inhibit β-Sheet Formation. J Phys Chem B 2021; 125:11159-11178. [PMID: 34605235 DOI: 10.1021/acs.jpcb.1c05805] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
The aggregation of amyloid β (Aβ) peptide triggered by its conformational changes leads to the commonly known neurodegenerative disease of Alzheimer's. It is believed that the formation of β sheets of the peptide plays a key role in its aggregation and subsequent fibrillization. In the current study, we have investigated the interactions of the Aβ(1-42) peptide with boron nitride nanoparticles and the effects of the latter on conformational transitions of the peptide through a series of molecular dynamics simulations. In particular, the effects of curvature of the nanoparticle surface are studied by considering boron nitride nanotubes (BNNTs) of varying diameter and also a planar boron nitride nanosheet (BNNS). Altogether, the current study involves the generation and analysis of 9.5 μs of dynamical trajectories of peptide-BNNT/BNNS pairs in an aqueous medium. It is found that BN nanoparticles of different curvatures that are studied in the present work inhibit the conformational transition of the peptide to its β-sheet form. However, such an inhibition effect follows different pathways for BN nanoparticles of different curvatures. For the BNNT with the highest surface curvature, i.e., (3,3) BNNT, the nanoparticle is found to inhibit β-sheet formation by stabilizing the helical structure of the peptide, whereas for planar BNNS, the β-sheet formation is prevented by making more favorable pathways available for transitions of the peptide to conformations of random coils and turns. The BNNTs with intermediate curvatures are found to exhibit diverse pathways of their interactions with the peptide, but in all cases, essentially no formation of the β sheet is found whereas substantial β-sheet formation is observed for Aβ(1-42) in water in the absence of any nanoparticle. The current study shows that BN nanoparticles have the potential to act as effective tools to prevent amyloid formation from Aβ peptides.
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Affiliation(s)
- Nidhi Sorout
- Department of Chemistry, Indian Institute of Technology Kanpur, Uttar Pradesh, India 208016
| | - Amalendu Chandra
- Department of Chemistry, Indian Institute of Technology Kanpur, Uttar Pradesh, India 208016
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42
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The TiO 2-ZnO Systems with Multifunctional Applications in Photoactive Processes-Efficient Photocatalyst under UV-LED Light and Electrode Materials in DSSCs. MATERIALS 2021; 14:ma14206063. [PMID: 34683655 PMCID: PMC8538394 DOI: 10.3390/ma14206063] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/19/2021] [Revised: 09/29/2021] [Accepted: 10/12/2021] [Indexed: 11/17/2022]
Abstract
The main goal of the study was the hydrothermal-assisted synthesis of TiO2-ZnO systems and their subsequent use in photoactive processes. Additionally, an important objective was to propose a method for synthesizing TiO2-ZnO systems enabling the control of crystallinity and morphology through epitaxial growth of ZnO nanowires. Based on the results of X-ray diffraction analysis, in the case of materials containing a small addition of ZnO (≥5 wt.%), no crystalline phase of wurtzite was observed, proving that a high amount of modified titanium dioxide can inhibit the crystallization of ZnO. The transmission electron microscopy (TEM) results confirmed the formation of ZnO nanowires for systems containing ≥ 5% ZnO. Moreover, for the synthesized systems, there were no significant changes in the band gap energy. One of the primary purposes of this study was to test the TiO2-ZnO system in the photodegradation process of 4-chlorophenol using low-power UV-LED lamps. The results of photo-oxidation studies showed that the obtained binary systems exhibit good photodegradation and mineralization efficiency. Additionally, it was also pointed out that the dye-sensitized solar cells can be a second application for the synthesized TiO2-ZnO binary systems.
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43
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Mohammadi Z, Vahabi M, Sadat SM, Zendehdel R. Risk Assessment of Nano-Flame Retardants Coating in the Selected Construction Industry of Iran by Control Banding Approach. Int J Prev Med 2021; 12:96. [PMID: 34584661 PMCID: PMC8428308 DOI: 10.4103/ijpvm.ijpvm_186_19] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Accepted: 05/21/2020] [Indexed: 12/04/2022] Open
Abstract
Background: There is a wide range of challenges through the use of nano-material in buildings. By developing construction industries the use of flame retardant nano-materials is a hurdle for human health. However occupational exposure measurement is not applicable for nano-particles monitoring. Risk assessment is an alternative method for industrial hygiene strategies. In this study, we use the control banding approach for risk assessment of 3 nano-fire retardant (NFR) in the building industry. Methods: We used control banding as a risk assessment approach for decision making about nano-materials in the building industry. The risk of nano-fire retardants such as monokote accelerator, monokote Z-106 G and monokote Z-106 HY in the construction industry was studied. The level of risk was evaluated by the matrix of hazard severity and probability score. Hazard severity was scored by toxicological information. The probability score was estimated by the state work operation. Results: A score of hazard severity in monokot Z-106 HY was higher than other nano-materials. The probability score of spraying tasks was lower than mixing and transportation tasks. The results show the application of all nano-materials had the higher risk level in transportation and mixing tasks. The risk level of monokote accelerator and monokote Z-106 G in spraying task is lower than monokot Z-106 HY. Conclusions: There is a high risk level for studied nano-materials in the coating tasks of the construction industry. In conclusion, powerful controlling strategies such as the substitution of nano-materials was suggested to decrease the risk of nano-fire retardants.
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Affiliation(s)
- Zahra Mohammadi
- Department of Occupational Health Engineering, Student Research Committee, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Masoume Vahabi
- Department of Occupational Health Engineering, Student Research Committee, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Seyed Mohammad Sadat
- Department of Occupational Health Engineering, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences Tehran, Iran
| | - Rezvan Zendehdel
- Department of Occupational Health Engineering, School of Public Health and Safety, Shahid Beheshti University of Medical Sciences Tehran, Iran
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Markitan OV, Vlasova NN. Adsorption of Deoxyribonucleic Acid on Nanocrystalline Titanium and Cerium Dioxide Surfaces. COLLOID JOURNAL 2021. [DOI: 10.1134/s1061933x21040050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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45
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Managing Risks in the Improved Model of Rolling Mill Loading: A Case Study. JOURNAL OF RISK AND FINANCIAL MANAGEMENT 2021. [DOI: 10.3390/jrfm14080359] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
This article reflects the main sources of risks for metallurgical enterprises in Russia, presenting the implementation of an innovative approach to increasing the competitiveness of an industrial enterprise, which is a typical representative of large enterprises of the metallurgical industry, based on the development of risk-oriented thinking when loading rolling mills with orders of intersecting assortment according to a new model. To reduce the emerging risks of a new model of the loading process of rolling mills of a metallurgical enterprise, it is proposed to take into account the risks in a complex way, taking into account their interactions with the use of integrated risk management (IRM). Practical development of the implemented approach was carried out by identifying the risks of the new improved loading process and their causes at each stage of the process. Risks were identified by analysis, qualitative and quantitative assessment of the likelihood of risks and the severity of consequences from their implementation with the establishment of events with a high potential hazard. Possible causes of hazardous events have been identified. To reduce the likelihood of unfavorable events, measures have been developed to influence significant risks and their effectiveness has been determined. The development of an innovative approach using risk-based thinking in a previously unexplored field of the application provides competitive advantages for enterprises of the metallurgical industry, increases income by reducing the cost of manufacturing products and production volumes by reducing time costs, achieving an economic efficiency of up to 10 million rubles per year. The practical significance of the dissemination of development results in similar industries is obvious and relevant for metallurgy as a whole.
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46
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Sit I, Wu H, Grassian VH. Environmental Aspects of Oxide Nanoparticles: Probing Oxide Nanoparticle Surface Processes Under Different Environmental Conditions. ANNUAL REVIEW OF ANALYTICAL CHEMISTRY (PALO ALTO, CALIF.) 2021; 14:489-514. [PMID: 33940931 DOI: 10.1146/annurev-anchem-091420-092928] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Surface chemistry affects the physiochemical properties of nanoparticles in a variety of ways. Therefore, there is great interest in understanding how nanoparticle surfaces evolve under different environmental conditions of pH and temperature. Here, we discuss the use of vibrational spectroscopy as a tool that allows for in situ observations of oxide nanoparticle surfaces and their evolution due to different surface processes. We highlight oxide nanoparticle surface chemistry, either engineered anthropogenic or naturally occurring geochemical nanoparticles, in complex media, with a focus on the impact of (a) pH on adsorption, intermolecular interactions, and conformational changes; (b) surface coatings and coadsorbates on protein adsorption kinetics and protein conformation; (c) surface adsorption on the temperature dependence of protein structure phase changes; and (d) the use of two-dimensional correlation spectroscopy to analyze spectroscopic results for complex systems. An outlook of the field and remaining challenges is also presented.
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Affiliation(s)
- Izaac Sit
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, USA; ,
| | - Haibin Wu
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, USA;
| | - Vicki H Grassian
- Department of Nanoengineering, University of California, San Diego, La Jolla, California 92093, USA; ,
- Department of Chemistry and Biochemistry, University of California, San Diego, La Jolla, California 92093, USA;
- Scripps Institution of Oceanography, University of California, San Diego, La Jolla, California 92093, USA
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47
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Jain N, Gupta E, Kanu NJ. Plethora of Carbon Nanotubes Applications in Various Fields – A State-of-the-Art-Review. SMART SCIENCE 2021. [DOI: 10.1080/23080477.2021.1940752] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Affiliation(s)
- Nidhi Jain
- Department of Engineering Science, Bharati Vidyapeeth College of Engineering, Lavale, Pune, India
| | - Eva Gupta
- Department of Electrical Engineering, ASET, Amity University, Noida, India
- Department of Electrical Engineering, TSSM’s Bhivrabai Sawant College of Engineering and Research, Pune, Maharashtra, India
| | - Nand Jee Kanu
- Department of Mechanical Engineering, S. V. National Institute of Technology, Surat, India
- Department of Mechanical Engineering, JSPM Narhe Technical Campus, Pune, India
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48
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Krystek M, Pakulski D, Górski M, Szojda L, Ciesielski A, Samorì P. Electrochemically Exfoliated Graphene for High-Durability Cement Composites. ACS APPLIED MATERIALS & INTERFACES 2021; 13:23000-23010. [PMID: 33944553 DOI: 10.1021/acsami.1c04451] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
The development of radically new types of corrosion-resistant cement composites is nowadays compulsory in view of the continuous increase of concrete consumption combined with the intrinsically defective nature of concrete. Among various additives being employed in the concrete technology, carbon nanomaterials have emerged as extremely powerful components capable of remarkably enhancing nano- and microstructures as well as properties of cement-based composites. In this study, we demonstrate that cement mortar incorporating electrochemically exfoliated graphene (EEG) exhibits significantly improved fluid transport properties. The addition of 0.05 wt % of EEG to ordinary Portland cement mortar results in the reduction of initial and secondary sorptivity values by 21 and 25%, respectively. This leads to the outstanding resistance of EEG-cement composites to highly corrosive environments, namely, chloride and sulfate solutions. These observations, combined with the previously reported remarkable enhancement of the tensile strength of EEG-cement mortars, represent a major step toward the development of highly durable graphene-based cement composites.
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Affiliation(s)
- Małgorzata Krystek
- Université de Strasbourg, CNRS, ISIS, 8 alleé Gaspard Monge, 67000 Strasbourg, France
- Department of Structural Engineering, Silesian University of Technology, Akademicka 5, 44-100 Gliwice, Poland
| | - Dawid Pakulski
- Faculty of Chemistry, Adam Mickiewicz University, Umultowska 89b, 61-614 Poznań, Poland
- Centre for Advanced Technologies, Adam Mickiewicz University, Umultowska 89c, 61-614 Poznań, Poland
| | - Marcin Górski
- Department of Structural Engineering, Silesian University of Technology, Akademicka 5, 44-100 Gliwice, Poland
| | - Leszek Szojda
- Department of Structural Engineering, Silesian University of Technology, Akademicka 5, 44-100 Gliwice, Poland
| | - Artur Ciesielski
- Université de Strasbourg, CNRS, ISIS, 8 alleé Gaspard Monge, 67000 Strasbourg, France
- Centre for Advanced Technologies, Adam Mickiewicz University, Umultowska 89c, 61-614 Poznań, Poland
| | - Paolo Samorì
- Université de Strasbourg, CNRS, ISIS, 8 alleé Gaspard Monge, 67000 Strasbourg, France
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Liu Y, Nie N, Tang H, Zhang C, Chen K, Wang W, Liu J. Effective Antibacterial Activity of Degradable Copper-Doped Phosphate-Based Glass Nanozymes. ACS APPLIED MATERIALS & INTERFACES 2021; 13:11631-11645. [PMID: 33685118 DOI: 10.1021/acsami.0c22746] [Citation(s) in RCA: 46] [Impact Index Per Article: 15.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
Copper-containing antimicrobials are highly valuable in the field of medical disinfectants owing to their well-known high antimicrobial efficacy. Artificially synthesized nanozymes which can increase the level of reactive oxygen species (ROS) in the bacterial system have become research hotspots. Herein, we describe the design and fabrication of degradable Cu-doped phosphate-based glass (Cu-PBG) nanozyme, which can achieve excellent antibacterial effects against Gram-positive and Gram-negative bacteria. The antibacterial mechanism is based on the generation of ROS storm and the release of copper. It behaves like a peroxidase in wounds which are acidic and exerts lethal oxidative stress on bacteria via catalyzing the decomposition of H2O2 into hydroxyl radicals (•OH). Quite different from any other reported nanozymes, the Cu-PBG is intrinsically degradable due to its phosphate glass nature. It gradually degrades and releases copper ions in a physiological environment, which further enhances the inhibition efficiency. Satisfactory antibacterial effects are verified both in vitro and in vivo. Being biodegradable, the prepared Cu-PBG exhibits excellent in vivo biocompatibility and does not cause any adverse effects caused by its long-time residence time in living organisms. Collectively, these results indicate that the Cu-PBG nanozyme could be used as an efficient copper-containing antimicrobial with great potential for clinical translation.
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Affiliation(s)
- Yifan Liu
- Laboratory of Functional and Biomedical Nanomaterials, College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Ning Nie
- Laboratory of Functional and Biomedical Nanomaterials, College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Huanfeng Tang
- Laboratory of Functional and Biomedical Nanomaterials, College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Congrou Zhang
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
| | - Kezheng Chen
- Laboratory of Functional and Biomedical Nanomaterials, College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Wei Wang
- Laboratory of Functional and Biomedical Nanomaterials, College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
| | - Jianfeng Liu
- Laboratory of Functional and Biomedical Nanomaterials, College of Materials Science and Engineering, Qingdao University of Science and Technology, Qingdao 266042, China
- Tianjin Key Laboratory of Radiation Medicine and Molecular Nuclear Medicine, Institute of Radiation Medicine, Chinese Academy of Medical Sciences and Peking Union Medical College, Tianjin 300192, China
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50
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Givelet L, Truffier-Boutry D, Noël L, Damlencourt JF, Jitaru P, Guérin T. Optimisation and application of an analytical approach for the characterisation of TiO 2 nanoparticles in food additives and pharmaceuticals by single particle inductively coupled plasma-mass spectrometry. Talanta 2021; 224:121873. [PMID: 33379082 DOI: 10.1016/j.talanta.2020.121873] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2020] [Revised: 10/31/2020] [Accepted: 11/04/2020] [Indexed: 10/23/2022]
Abstract
This study was designed to optimise an analytical method for characterising TiO2 nanoparticles (NPs) in food additives and pharmaceuticals by inductively coupled plasma-mass spectrometry in single particle mode (spICP-MS). Several parameters, including transport efficiency (TE), were assessed and optimised using the NM-100 reference material. We found that self-aspiration for sample intake and use of the concentration-based method for TE was optimal for characterising TiO2 NPs. No spectral interference was observed with either 49Ti or 48Ti isotopes. The optimised Excel spreadsheet developed for this study not only provided additional parameters but gave results closer to the NM-100 reference value than the ICP-MS software. The method was then applied to the analysis of a selection of food samples and pharmaceuticals. The average diameter of TiO2 particles ranged from 86 to 179 nm in the food samples and from 131 to 197 nm in the pharmaceuticals, while the nanoparticular fraction was between 19 and 68% in food, and between 13 and 45% in pharmaceuticals.
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Affiliation(s)
- Lucas Givelet
- Anses, Laboratory for Food Safety, F-94701, Maisons-Alfort, France; Univ. Grenoble Alpes, CEA, LITEN, F-38000, Grenoble, France
| | | | - Laurent Noël
- The French Directorate General for Food, Ministry of Agriculture, Agro-16 Food and Forestry, F-75015, Paris, France
| | | | - Petru Jitaru
- Anses, Laboratory for Food Safety, F-94701, Maisons-Alfort, France
| | - Thierry Guérin
- Anses, Laboratory for Food Safety, F-94701, Maisons-Alfort, France.
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