Article
Environmental Sciences
Lola Virag Kiss, Zoltan Savoly, Andras Acs, Aniko Seres, Peter Istvan Nagy
Summary: The study investigated the toxic effects of ZnO nanoparticles of different sizes, with N-acetylcysteine (NAC) found to mitigate the toxicity and ZnCl2 exhibiting lower toxicity compared to ZnO particles. Toxicity increased significantly when the two materials were applied in binary mixtures, highlighting the importance of chemical and physical properties in determining toxicity.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Materials Science, Multidisciplinary
Kyusung Kim, Sangwoo Chae, Yoshitake Masuda, Nagahiro Saito
Summary: In this study, the morphology of ZnO nanostructures was controlled using solution plasma process without chemical additives, resulting in the synthesis of nanorod and nanosheet-type ZnO with Zn and W electrodes, respectively. The unique reaction between ions and radicals at the plasma/liquid interface was responsible for the fabrication of ZnO nanostructures, with Zn(OH)(4)(2-) ions promoting rod structure and WO42- ions inhibiting growth in the [001] direction to form sheet structure.
Article
Chemistry, Physical
Junchao Chen, Fang Wang, Yujie Wen, Weiping Tang, Luming Peng
Summary: Recent advances in applying O-17 solid-state NMR spectroscopy have provided valuable information on the surface structure, active sites, and reaction mechanisms of catalytic oxides. This article provides a brief introduction to O-17 solid-state NMR spectroscopy and discusses recent methodological developments related to its applications. Furthermore, it reviews the applications of O-17 NMR in elucidating the structure of oxide catalysts and related mechanisms, with a specific focus on recent research on oxide nanomaterials and zeolites. Finally, it offers opinions on remaining challenges and future directions in this emerging field.
Review
Chemistry, Multidisciplinary
Ziming Xin, Qianqian He, Shuangao Wang, Xiaoyu Han, Zhongtian Fu, Xinxin Xu, Xin Zhao
Summary: Advances in nanotechnology have led to the development of antimicrobial technology using nanomaterials. Photocatalytic antibacterial disinfection methods with ZnO-based nanomaterials have gained significant attention. The increased resistance of bacteria and viruses has hindered traditional methods of water purification and disinfection. Exploring new and effective antimicrobial materials and methods is of practical importance.
APPLIED SCIENCES-BASEL
(2022)
Article
Materials Science, Multidisciplinary
Turan Gurgenc, Cevher Kursat Macit, Fatih Biryan, Ezgi Gurgenc, Cihan Ozel, Stefano Bellucci
Summary: In this study, titanium carbide (TiC) reinforced zinc oxide (ZnO) nanoparticles with different ratios of TiC were synthesized using the sol-gel method. The structural, morphological, and dielectric properties of the synthesized nanoparticles were investigated. The results showed that the addition of TiC significantly affected the structure and electrical properties of the nanoparticles.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2023)
Article
Chemistry, Physical
Weiqiang Li, Qixiu You, Jingjing Zhang, Wen Li, Hengyi Xu
Summary: The green synthesis of zinc oxide nanoparticles (LFL-ZnO) using Lactobacillus plantarum ZDY2013 fermentation liquid (LFL) was successfully achieved in this study. The LFL-ZnO exhibited a spherical morphology surrounded by LFL, as confirmed by SEM and TEM. The synthesized LFL-ZnO showed a hexagonal wurtzite structure with a crystallite size of 41 nm according to XRD analysis. The antibacterial activity of LFL-ZnO against methicillin-resistant Staphylococcus aureus (MRSA) was significant, with a minimum inhibitory concentration (MIC) of 100 μg/mL. The antibacterial mechanisms were attributed to the release of Zn2+ ions causing bacterial cell destruction and the generation of reactive oxygen species (ROS).
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Hue Thi Nguyen, Tuyet Nhung Pham, Le Thi Le, Tien Khi Nguyen, Anh-Tuan Le, Tran Quang Huy, Thuy Thi Thu Nguyen
Summary: This study introduces the bioformulations of Ag/BBR and ZnO/BBR complexes against pathogenic bacteria in the gastrointestinal tract. The presence of BBR significantly influenced the nanoparticle growth, resulting in the formation of core/shell structured Ag/BBR and ZnO/BBR NPs with small particle sizes. The antibacterial test showed that BBR, Ag, or ZnO components all contributed to the increase of antibacterial ability of Ag/BBR and ZnO/BBR NPs against both methicillin-resistant Staphylococcus aureus (MRSA) and Salmonella enteritidis (S. enteritidis).
Article
Multidisciplinary Sciences
V. N. Kowshalya, P. N. Palanisamy
Summary: This research focuses on the synthesis of cost effective nano-zinc oxide and its efficiency in treating hazardous carcinogenic dye in wastewater through adsorption process. The synthesized zinc oxide nanorods also exhibit significant anti-cancer activity. The findings suggest that nano-zinc oxide has a high adsorption capacity for the dye and has potential biomedical applications in cancer treatment.
ARABIAN JOURNAL FOR SCIENCE AND ENGINEERING
(2022)
Article
Environmental Sciences
Yahya Zandsalimi, Afshin Maleki, Behzad Shahmoradi, Saeed Dehestani, Reza Rezaee, Gordon McKay
Summary: Groundwater is the primary source of water for human consumption in many parts of the world, but it is susceptible to contamination by various wastes. This study demonstrates the feasibility of using tungsten-doped zinc oxide nanoparticles for the photocatalytic removal of 2,4-D pesticide. The doped nanoparticles have a smaller band gap energy, which enhances the pesticide removal efficiency. In addition, increasing light intensity, contact time, and nanoparticle concentration all lead to higher removal efficiency.
ENVIRONMENTAL TECHNOLOGY
(2022)
Article
Polymer Science
Stefan Hardon, Jozef Kudelcik, Anton Baran, Ondrej Michal, Pavel Trnka, Jaroslav Hornak
Summary: In this study, nanoparticles of Al2O3 and ZnO were dispersed into a polyesterimide (PEI) matrix to prepare nanocomposite polymer. The influence of nanoparticle fillers on the complex relative permittivity was studied using dielectric frequency spectroscopy. The presence of nanoparticles in the resin changed the segmental dynamics of the polymer chain and charge distribution, resulting in higher polymer chain mobility and a shift of relaxation peaks in the spectra.
Review
Polymer Science
Maria de los Angeles Martinez Martinez, Lucia Soto Urzua, Yovani Aguilar Carrillo, Mirian Becerril Ramirez, Luis Javier Martinez Morales
Summary: In this review, the PHB production by A. brasilense is analyzed, including the carbon and nitrogen sources used, the synthesis and metabolic pathways of PHB, the role of genes involved in PHB metabolism, and the applications of PHB in the physiology of Azospirillum and biomedical and commercial areas.
Article
Engineering, Electrical & Electronic
Subimal Majee, Mikael C. F. Karlsson, Anurak Sawatdee, Mohammad Yusuf Mulla, Naveed ul Hassan Alvi, Valerio Beni, David Nilsson
Summary: This study presents an innovative method for fabricating inkjet-printed tracks using Zn nanoparticle ink and low-temperature in situ chemical sintering of curing ink. Chemical curing allows for the use of flexible substrates that cannot withstand traditional high thermal budgets. A specific acid concentration in the curing ink is found to be crucial in determining the electrical properties of the printed Zn nanoparticles, resulting in highly conductive and mechanically flexible features. Additionally, a touch sensor circuit utilizing all-Zn printed conductive tracks is demonstrated.
NPJ FLEXIBLE ELECTRONICS
(2021)
Article
Chemistry, Inorganic & Nuclear
Balasubramanian Malaikozhundan, Raman Krishnamoorthi, Jayaraj Vinodhini, Kalaiselvi Sivalingam Nathiga Nambi, Subramanian Palanisamy
Summary: In this study, Fe2O3 nanoparticles coated with papaya fruit extract were synthesized and characterized. The results showed that these nanoparticles have antibacterial activity, radical scavenging activity, and dye degradation ability.
INORGANIC CHEMISTRY COMMUNICATIONS
(2022)
Article
Chemistry, Physical
Zongge Li, Danni Wang, Huifang Li, Mang Ma, Ying Zhang, Zifeng Yan, Stefano Agnoli, Guoxin Zhang, Xiaoming Sun
Summary: This study demonstrates the potential of N-doped porous CMs with redox-able Zn atoms to achieve high Zn/N loading, pseudocapacitive behavior, and cycling stability, laying the foundation for a new type of high Zn/N-loading carbon materials.
Review
Engineering, Environmental
Law Yong Ng, Hoey Syean Chua, Ching Yin Ng
Summary: The study aims to evaluate the membrane performance modified by GO-based composites based on altered membrane characteristics. Data from various measurements are employed to explain changes in solution flux, fouling resistance, selectivity and other factors. GO-based nanocomposite membranes show improved performance in water treatment, indicating their potential for future applications in water and wastewater treatment.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Nanoscience & Nanotechnology
Lizandra Viana Maurat da Rocha, Laura Coelho Merat, Livia Rodrigues de Menezes, Priscilla Vanessa Finotelli, Paulo Sergio Rangel Cruz da Silva, Maria Ines Bruno Tavares
APPLIED NANOSCIENCE
(2020)
Article
Thermodynamics
Debora da C. P. da Silva, Livia R. de Menezes, Paulo Sergio R. C. da Silva, Maria Ines B. Tavares
Summary: Most synthetic polymers used in packaging industry are derived from fossil fuels and tend to accumulate in the environment. By incorporating zirconium-based compounds, the properties of poly(3-hydroxybutyrate) can be improved for potential applications in food packaging.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Engineering, Chemical
Anna Lecticia Martinez Martinez Toledo, Elton Jorge da Rocha Rodrigues, Jose Carlos Dutra Filho, Domethila Mariano de Souza Aguiar dos Santos, Suelen Adriani Marques, Maria Ines Bruno Tavares
POLYMER ENGINEERING AND SCIENCE
(2020)
Article
Food Science & Technology
Pablo T. Coimbra, Celso F. Bathazar, Jonas T. Guimaraes, Nathalia M. Coutinho, Tatiana C. Pimentel, Roberto P. C. Neto, Erick A. Esmerino, Monica Q. Freitas, Marcia C. Silva, Maria I. B. Tavares, Adriano G. Cruz
Article
Food Science & Technology
Ramon S. Rocha, Ramon Silva, Jonas T. Guimaraes, Celso F. Balthazar, Tatiana C. Pimentel, Roberto P. C. Neto, Maria Ines B. Tavares, Erick A. Esmerino, Monica Q. Freitas, Leandro P. Cappato, Rodrigo N. Calvacanti, Flavio N. Rodrigues, Renata S. L. Raices, Marcia C. Silva, Adriano G. Cruz
FOOD RESEARCH INTERNATIONAL
(2020)
Article
Chemistry, Applied
Leonardo M. Fernandes, Jonas T. Guimaraes, Ramon Silva, Ramon S. Rocha, Nathalia M. Coutinho, Celso F. Balthazar, Rodrigo N. Calvalcanti, Carlos W. Piler, Tatiana C. Pimentel, Roberto P. C. Neto, Maria Ines B. Tavares, Erick A. Esmerino, Monica Q. Freitas, Marcia C. Silva, Adriano G. Cruz
FOOD HYDROCOLLOIDS
(2020)
Article
Thermodynamics
Erica da Cruz Faria, Marcos Lopes Dias, Luana Marques Ferreira, Maria Ines Bruno Tavares
Summary: By adding nano-zinc oxide particles to commercial PLA films, the intention was to enhance the crystallization process of PLA. However, it was found that the addition of nano-ZnO reduced the thermal stability of the films and did not significantly increase their crystallinity.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Chemistry, Applied
Ludmila S. Leddomado, Ramon Silva, Jonas T. Guimaraes, Celso F. Balthazar, Gustavo L. P. A. Ramos, Monica Q. Freitas, Maria Carmela K. H. Duarte, Roberto P. C. Neto, Maria Ines B. Tavares, Tatiana C. Pimentel, Paulo Henrique F. Silva, Renata S. L. Raices, Marcia Cristina Silva, Adriano G. Cruz, Erick A. Esmerino
Summary: The addition of prebiotic ingredients in Dulce de Leche formulations resulted in improved texture, lower HMF values, and enhanced optical parameters without negative impact on the fatty acid profile. Prebiotic components also contributed to reducing lactose crystal development and delaying crystal growth during storage.
FOOD HYDROCOLLOIDS
(2021)
Article
Food Science & Technology
Juliana S. Farah, Rodrigo N. Cavalcanti, Jonas T. Guimaraes, Celso F. Balthazar, Pablo T. Coimbra, Tatiana C. Pimentel, Erick A. Esmerino, Maria Carmela K. H. Duarte, Monica Q. Freitas, Daniel Granato, Roberto P. C. Neto, Maria Ines B. Tavares, Veronica Calado, Marcia C. Silva, Adriano G. Cruz
Summary: The study successfully detected adulteration in raw bovine milk using DSC coupled with machine-learning tools, with GBM and MLP achieving 100% classification capability and RF showing optimal performance as well. Different models had varying important predictors, showcasing a multidimensional approach with practical potential for adoption by the dairy industry.
Article
Food Science & Technology
Celso F. Balthazar, Jonas T. Guimara, Ramon S. Rocha, Tatiana C. Pimentel, Roberto P. C. Neto, Maria Ines B. Tavares, Juliana S. Grata, Elenilson G. Alves Filho, Monica Q. Freitas, Erick A. Esmerino, Daniel Granato, Sueli Rodrigues, Renata S. L. Raices, Marcia C. Silva, Anderson S. Sant'Ana, Adriano G. Cruz
Summary: NMR technology is an effective tool for ensuring the authenticity and controlling the quality of dairy products. It can measure fat content, evaluate geographic origin, study water mobility, and quantify water molecules in various dairy products. Despite high costs, NMR's nondestructive nature, simplicity, and instrumental stability make it a valuable technique for dairy food characterization when combined with chemometrics.
TRENDS IN FOOD SCIENCE & TECHNOLOGY
(2021)
Article
Polymer Science
Izabel Jales Ferreira, Livia Rodrigues de Menezes, Maria Ines Bruno Tavares
Summary: The study reveals that tea tree oil is effective in inhibiting human papillomavirus and can be enhanced in solubility and stability through nanoencapsulation. The tea tree oil nanoparticles showed stability for three months and exhibited no cytotoxic effects on cells.
Article
Engineering, Biomedical
Maxwell de Paula Cavalcante, Livia Rodrigues de Menezes, Elton Jorge da Rocha Rodrigues, Maria Ines Bruno Tavares
Summary: The use of regeneration scaffolds, including poly(3-hydroxybutyrate)-PHB and nanohydroxyapatite-Hap composites, in bone tissue engineering shows promising potential due to their biocompatibility and mechanical properties.
JOURNAL OF THE MECHANICAL BEHAVIOR OF BIOMEDICAL MATERIALS
(2022)
Article
Polymer Science
Bruna Vieira Tiburcio, Livia Rodrigues de Menezes, Laura Coelho Merat, Lizandra Viana Maurat da Rocha, Emerson Oliveira da Silva, Maria Ines Bruno Tavares
Summary: Orange oil was encapsulated in PCL/Pluronic F68-based nanoparticles prepared by the nanoprecipitation technique. The encapsulation improved the solubility of orange oil and maintained its properties. The nanosystems had monodispersed distributions and nanometric diameters. The encapsulated orange oil exhibited stabilizing and cryoprotective effects on the colloidal dispersions, and its release sustained for approximately 7 h.
Article
Engineering, Chemical
Matheus Farias, Paulo Sergio Rangel Cruz da Silva, Maria Ines Bruno Tavares, Mariana Sato de S. B. Monteiro
Summary: Nanocomposites with inorganic nanofillers were prepared using a solution intercalation technique and a spray-drying process. The results showed that PVP/MMT achieved an intercalated/exfoliated morphology, while the incorporation of TiO2 nanoparticles did not affect the structure of the PVP matrix. Thermal analysis did not reveal any changes in the nanocomposites compared to the pure polymer. SEM analysis revealed a pseudo-spherical shape, and EDS confirmed the dispersion of MMT in the PVP matrix. The introduction of lithium carbonate created a new system with higher molecular mobility.
POLYMER ENGINEERING AND SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Maxwell de Paula Cavalcante, Livia Rodrigues de Menezes, Elton Jorge da Rocha Rodrigues, Maria Ines Bruno Tavares
Summary: This study investigates the selective localization of hydroxyapatite nanoparticles in polymer composite materials, and its effects on crystallization and molecular dynamics. The nanoparticles act as nucleating agents and influence the crystallization behavior of the polymer matrix, leading to changes in molecular dynamics within the sample.
JOURNAL OF MATERIALS SCIENCE
(2021)
