Article
Chemistry, Physical
Yoga Romdoni, Grandprix T. M. Kadja, Yoshitaka Kitamoto, Munawar Khalil
Summary: Incorporating Ag nanoparticles into core-shell Fe3O4@SiO2 offers promising opportunities for biomedical applications. Fe3O4@SiO2-Ag nanoparticles were successfully synthesized using seed-mediated growth methods. The synthesized composite nanoparticles exhibited good crystallinity and a core-shell structure. The nanocomposites also showed superparamagnetic properties and surface plasmon resonance absorption. Moreover, the Fe3O4@SiO2-Ag nanoparticles demonstrated potential antibacterial activity and cytotoxicity against cancer cells, indicating their potential as antibacterial agents and anticancer drug carriers.
APPLIED SURFACE SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Changcheng Lin, Xiang Huang, Chenlong Shi, Yanting Yang
Summary: The recyclable silver-decorated magnetic Fe3O4/tannin composites (MFTA) were prepared and evaluated for their catalytic and antimicrobial activities. The MFTA3 composite showed the highest catalytic activity for the reduction of 4-nitrophenol and exhibited significant antibacterial activity against Escherichia coli and Staphylococcus aureus.
JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE
(2023)
Article
Chemistry, Physical
Peng Xu, Nannan Chen, Ao Wang, Dongmei Yu
Summary: In this study, magnetically separable Cu-Fe3O4/C composite microspheres were successfully synthesized and characterized. The results showed that the composite microspheres exhibited excellent catalytic activity for selective reduction and significant antibacterial effects.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Construction & Building Technology
Yanpeng Wu, Xiaoyu Li, Qiaoyang Zhong, Faming Wang, Bin Yang
Summary: This study created a PVDF/SiO2/Ag composite nanofiber membrane with superhydrophobic and antibacterial properties using an electrospinning method. The membrane was deposited on PET fibers to create an air filter material. The results showed that the addition of nano-silver significantly improved the antibacterial performance while increasing the concentration of hydrophobic nano-SiO2 improved the hydrophobicity. The composite nanofiber membrane had a filtration efficiency of 99.94% for 0.3μm particulate matter and a drag pressure drop of 112.3 Pa, with a filtration efficiency for air microorganisms greater than 99.99%.
JOURNAL OF BUILDING ENGINEERING
(2023)
Article
Physics, Condensed Matter
Jimmy Castillo, Vicmary Vargas, Daniel Macero, Aurelie Le Beulze, Wladimir Ruiz, Brice Bouyssiere
Summary: This study presents different methodologies for preparing Fe2O3@SiO2 nanoparticles and characterizing them. A new one-step method to obtain silica nanoparticles loaded with iron oxides and with high magnetic properties was highlighted.
PHYSICA B-CONDENSED MATTER
(2021)
Article
Chemistry, Physical
Kezhu Xu, Qunling Fang, Jing Wang, Ailing Hui, Shouhu Xuan
Summary: In this study, a Fe3O4@SiO2@Au/PDA nanochain was developed, which showed an interesting magnetic-field-induced improvement of its photothermal antibacterial property. The experimental results demonstrated that the material exhibited good antibacterial properties against Escherichia coli and Staphylococcus aureus under photothermal conditions, and the bactericidal effect was further significantly enhanced after applying a magnetic field.
Article
Materials Science, Ceramics
Miguel Fernandez-Ramos, Josefa Isasi, Mauricio Alcolea, Tamara Munoz-Ortiz, Elisa Ortiz-Rivero
Summary: This paper describes the preparation and study of new bifunctional samples (Y(0.9)Ln(0.1)VO(4)/Fe3O4)@SiO2 and [(Y(0.9)Ln(0.1)VO(4)@SiO2)/ Fe3O4@SiO2] with Ln = Nd or Tb. The influence of Fe3O4 content and silica coating on the Y(0.9)Ln(0.1)VO(4)@SiO2 samples is analyzed, and their potential utility is determined. These samples, which have potential applications in biomedicine, can be directed using an external magnetic field and allow the visualization of diseased cells. The experimental and theoretical studies provide insights into the structural and vibrational properties of the samples, confirming the presence of silica coating. The [(Y(0.9)Ln(0.1)VO(4)@SiO2)/Fe3O4@SiO2] samples show the most suitable properties for use as bifunctional materials.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Cristina-S Adochite, Catalin Vitelaru, Anca C. Parau, Adrian E. Kiss, Iulian Pana, Alina Vladescu, Sarah Costinas, Marius Moga, Radu Muntean, Mihaela Badea, Mihaela Idomir
Summary: Multiple antibiotic resistance is a major hindrance in the treatment of infectious diseases. The use of nanotechnology in medicine provides a promising alternative for preventing infections from multidrug-resistant bacteria. By incorporating silver particles into thin films, the antibacterial efficacy can be enhanced, which is significant for limiting bacterial growth on hospital surfaces.
Article
Nanoscience & Nanotechnology
Juan Carlos Camacho-Fernandez, Genesis Karendash Gonzalez-Quijano, Childerick Severac, Etienne Dague, Veronique Gigoux, Jaime Santoyo-Salazar, Adrian Martinez-Rivas
Summary: The study investigated the impact of magnetic nanoparticles interacting with HeLa cells under high frequency alternating magnetic field. It was found that these interactions modified the biomechanical behavior of the cell interfaces, particularly with Fe3O4@SiO2-NH2 MNPs incubated HeLa cells exposed to AMF showing the most significant difference in elasticity and stiffness.
Article
Chemistry, Physical
Juan Ding, Ligang Cheng
Summary: The Fe3O4@SiO2@PANI ternary nanocomposite, prepared through a three-step method, demonstrates excellent microwave absorption properties with high RLmax and absorption bandwidth, making it a promising material for microwave absorbers in the field of electromagnetic waves.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Chemistry, Applied
Jia Ma, Jiang-Hua Zhang, Hua-Wei Zhang, Qian-Qian Du, Zi-Xuan Li, Zhi-Fei Yang, Sha-Sha Yang, Da-Yong Zhou
Summary: This study developed an innovative method using Fe3O4@SiO2/M (M = Zn or Al) catalysts to synthesize medium-chain structured phospholipid emulsifiers (MCSPLs). The targeted emulsifiers exhibited superior emulsifying properties and had the potential to be used as oil-in-water emulsifiers. This method offers a promising, green, economic, and highly effective approach for the synthesis of novel dual-function phospholipid emulsifiers.
Article
Materials Science, Ceramics
Yanlin Li, Wenyuan Duan, Jian Wei
Summary: In this study, Dia@SiO2@Ag composites were successfully designed and prepared by a simple chemical method, combining diamond micropowder and Ag nanoparticles as a stable substrate for surface enhanced Raman scattering (SERS). The composites exhibited high activity and sensitivity for detecting specific molecules, showing potential for broadening the functional applications of diamond in Raman detection.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Physical
Jiang Wu, Kanghui Ke, Ni Qin, Enzhu Lin, Zihan Kang, Dinghua Bao
Summary: In this study, a magnetically retrievable Fe3O4@SiO2@ZnO nanocomposite was successfully synthesized, which consisted of vertically grown ZnO nanorods on the surface of magnetic Fe3O4@SiO2 microspheres. SiO2 served as an insulator to protect the core and inhibit charge transfer. The nanocomposite showed high efficiencies in piezocatalytic, photocatalytic, and piezo-photocatalytic dye degradation processes, with a rate constant of piezo-photocatalysis reaching 95.9 x 10-3 min-1.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Yichun Peng, Shenghua Ma, Zhihua Shao, Qiangzhou Rong
Summary: Photoacoustic imaging is a novel noninvasive imaging technology that combines optical and ultrasound advantages. Materials with good photoacoustic effects can enhance imaging contrast and resolution. The synthesized SiO2/C/Fe3O4 nanomaterial exhibits promising photoacoustic and magnetocaloric effects for potential use in imaging contrast agents and therapy.
JOURNAL OF PHYSICAL CHEMISTRY C
(2021)
Article
Nanoscience & Nanotechnology
Nagarajan Padmavathy, Indranil Chakraborty, Abishek Kumar, Anindo Roy, Suryasarathi Bose, Kaushik Chatterjee
Summary: A customized polymer composite has been developed that provides electromagnetic shielding, protects medical electronics, and has antibacterial properties.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Physical
Wenjing Tan, Chunmei Gao, Shifeng Ji, Yunqing Xing, Yi Guo, Baogui Liang
Summary: Membrane separation technology is widely used in wastewater treatment due to its cost-effectiveness and productivity. However, organic membrane fouling caused by humic acid is a major barrier to its further development. This study successfully addressed this issue through the production of composite materials and self-cleaning membranes, providing beneficial strategies and solutions for membrane contamination problems.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Qichang Peng, Qingdong Ruan, Bin Wang, Jinyuan Liu, Chao Huang, Xingwang Zhu, Dan Li, Liangliang Liu, Yinchuan Wang, Xiaolin Zhang, Jia Yan, Paul K. Chu, Hui Xu
Summary: The escalating issue of water pollution has led to significant attention in the field of photocatalysis. In this study, OV-Sb2WO6-X photocatalyst with oxygen vacancies was synthesized, which exhibited enhanced charge separation efficiency and improved photocatalytic activity. The introduction of oxygen vacancies was successfully controlled and characterized, and the modified photocatalyst showed superior degradation efficiency for dye wastewater treatment.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Wangcheng Zhang, Cunchuan Zheng, Hu Xie, Weichao Du
Summary: By using a specific curing agent ETB, the problem of dispersion and stability for oily epoxy resin in cement slurry system has been successfully solved. The application of the emulsified curing agent ETB in oilfield cement slurry system shows good rheological performance, resistance to high temperature and high pressure water loss, and corrosion resistance.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
O. I. Krivonos, A. Babenko, O. B. Belskaya
Summary: This study synthesized biochar based on sapropel and investigated the effects of chemical modification on its textural characteristics, acid-base properties, and adsorption properties. The results showed that the chemical modification increased the fraction of micropores, specific surface area, and changed the surface properties of biochar. The experiment also revealed that biochar pretreated with alkali exhibited the maximum adsorption capacity for copper ions. A conceptual model identifying the mechanisms of copper adsorption on sapropel-based biosorbent was proposed.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
H. Lachhab, N. Benzbiria, A. Titi, S. Echihi, M. E. Belghiti, Y. Karzazi, A. Zarrouk, R. Touzani, C. Jama, F. Bentiss
Summary: The corrosion inhibitory potency of two new pyrimidine-pyrazole derivatives, PPA and PPC, was evaluated for mild steel in 1 M HCl. The results showed enhanced inhibition activities with increased concentration, reaching maximal values of 91.15% and 92.39% for PPA and PPC, respectively. However, the mitigation potency decreased with increasing temperature. SEM and XPS analysis revealed that PPA and PPC adsorbed on the mild steel surface, forming a shielding layer that prevented the dissolution of the steel in the acidic solution.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Shanmugapriya Sivalingam, D. Jeya Sundara Sharmila, Goutham Golla, Lakshmanan Arunachalam, Tarunendu Singh, G. Karthikeyan, A. Shanthi, Kannan Malaichamy
Summary: This study aims to develop a nano-biofungicide comprising of volatile essential oil molecules to enhance its efficacy in the field of agriculture through easily scalable green synthesis technique. The nano biofungicide was prepared through one pot hot melt ultrasonication technique with easy water dispersibility and long term stability. The physico-chemical analysis revealed that, nano bio-fungicides were amorphous sphere-shaped nanoparticles with low melting point. The encapsulation efficiency of major components of essential oil was determined, and it was found that they followed Higuchi model of release kinetics. The essential oil loaded nanostructured lipid carrier showed significantly higher mycelial growth inhibition compared to pure essential oil, indicating enhanced bio-efficacy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Yinlong Li, Yingqing Zhan, Yiwen Chen, Hongshan Jia, Ximin Chen, Fei Zhu, Xulin Yang
Summary: In this study, ZnO quantum dots decorated MXene nanosheets were used as a functional filler for waterborne epoxy coating. The improved dispersion and synergy of ZnO QDs and MXene nanosheets enhanced the anticorrosion performance of the coating.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Fucheng Guan, Jing Tao, Qiang Yao, Zheng Li, Yihang Zhang, Shi Feng, Jianbin Sun, Qiang Yang, Xuecui Song, Jing Guo, Yuanfa Liu
Summary: This paper presents a method for preparing adsorbent materials based on biomass that can efficiently adsorb methylene blue. The experimental results show that the material has a hierarchical structure, high adsorption capacity, and reusability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Pengfei Hu, Zuli Mo, Weiliang Wang, Chengzhe Li, Zhaojia Guo, Guanqing Lin, Zhimin Guo
Summary: This study developed a novel in-situ particle vision and measurement (PVM) system to investigate heterocoagulation between coarse and fine particles in mineral processing. The experimental results showed that the degree of heterocoagulation decreased with increasing pH and stirring speed. Furthermore, under certain hydrodynamic conditions, coal particles were more distributed at the rear of the glass bead.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Tanveer ul Haq Zia, Anwar ul Haq Ali Shah, Behisht Ara, Kashif Gul
Summary: A label-free immunosensor for detection of hepatitis C core antigen was fabricated using a ternary nanocomposite based on polypyrrole, silver doped zinc oxide, and exfoliated graphene. The immunosensor demonstrated low detection limit, high selectivity, and stability.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Xiaoyan Feng, Jiachen Li, Lijun Liang, Linli Zhu, Sa Liu, Li Ren
Summary: In this study, polystyrene divinylbenzene microspheres were surface-modified by poly(carboxybetaine methacrylate) to develop an efficient hemoperfusion adsorbent for the removal of protein-bound toxins. The modified microspheres showed increased adsorption capacity and better biocompatibility, making them promising for clinical hemoperfusion therapy.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Xiaoye Bi, Dong Xue, Yunpeng Wang, Chencheng Lv, Zexiong Li, Tao Zhao
Summary: This research aimed to develop a durable and formaldehyde-free flame retardant treatment for cotton fabrics. The results demonstrated successful grafting of phosphorous acid (PA) onto cotton fabrics, leading to enhanced flame resistance while maintaining the desired fabric characteristics.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Ruolin Wang, Wenjuan Sun, Haisheng Han, Dongping Tao
Summary: This study finds that Al-starch colloidal depressants can effectively inhibit the flotation of ultrafine calcite and chlorite, and increase the grade of valuable minerals. The chemisorption of Al-starch on mineral surface changes the functional group peaks and generates new O-Al functional groups.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Wondimu K. Wakejo, Ali Maged, Beteley T. Meshesha, Joon W. Kang, Abayneh G. Demesa, Sandip Chakrabarti, Thallada Bhaskar, Ashok Kumar Gupta, Amit Bhatnagar
Summary: Simultaneously removing different pharmaceutical pollutants from wastewater is an important environmental issue, and the use of a system that can remove multiple contaminants at once is necessary. Functionalized biochar (FBC) has been found to be effective in simultaneously removing acetaminophen and ciprofloxacin and other pharmaceutical pollutants.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)
Article
Chemistry, Physical
Yu Wang, Fengwen Yan, Jie Wu, Zhijun Huang, Liuting Song, Shunda Yuan
Summary: In this study, Cu single atoms are anchored on the external surface of g-C3N4 nanofibers to maximize atom utilization. This catalyst exhibits excellent Fenton-like catalytic activity and good stability due to the full utilization of Cu active sites.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2024)