Article
Materials Science, Multidisciplinary
Jian Lan, Hongying Hou, Xianxi Liu, Xiaohua Yu, Ju Rong, Fangshu Chen
Summary: Hierarchical dumbbell-like Fe3O4/C powder was synthesized for the supercapacitor electrode, showing higher reversible capacitances and remarkable cycle stability. The electrode exhibited a high energy density at high power and is feasible for high-performance supercapacitor applications.
Article
Chemistry, Physical
Jiafeng He, Gao Song, Xinyue Wang, Ling Zhou, Jumei Li
Summary: The study developed magnetic Fe3O4/GO/Ag composite microspheres for removing organic dyes and antibiotics in water, showing high activity in SERS detection and catalytic reactions. The microspheres exhibited potential applications in trace and quantitative detection of chemicals, as well as in-situ monitoring of the catalytic degradation of organic pollutants.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Hee-Kyung Na, Jisun Ki, Minh-Uyen Le, Kyoung-Shim Kim, Chul-Ho Lee, Tae Geol Lee, Jung-Sub Wi
Summary: The study developed a new type of SERS probe formed by enzyme reactions in the presence of Raman reporters, which achieved uniform and stable signal generation for biomolecule detection on chips over long periods. By applying this approach to a SERS-based immunohistochemistry assay, successful multiplexed protein detection was achieved in brain tissue from transgenic mice.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Luis Zamora-Peredo, Josue Ismael Garcia-Ramirez, Amado Carlos Garcia-Velasco, Julian Hernandez-Torres, Leandro Garcia-Gonzalez, Monserrat Bizarro, Adriana Baez-Rodriguez
Summary: This study fabricated ZnO microspheres and Ag/ZnO microspheres using hydrothermal and photodeposition methods, and found that the SERS substrate grown at 9.8 mM during 30 min showed the best SERS activity, with the ability to detect methylene blue at 10(-9) M concentration.
Article
Spectroscopy
Ye Jiang, Xiaochan Wang, Guo Zhao, Yinyan Shi, Yao Wu
Summary: The study demonstrates the use of multifunctional Fe3O4@mTiO2@Ag core-shell nanoparticles as enhanced substrates for in-situ surface-enhanced Raman spectroscopy (SERS) detection of quinolone antibiotics in aqueous environments. The nanoparticles achieved a detection limit of 1 x 10-9 mol/L for five antibiotics and 1 x 10-8 mol/L for one antibiotic. There was a quantitative relationship between antibiotic concentrations and SERS peak intensities, and the nanoparticles also assisted in the photocatalytic degradation of antibiotics in water.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Chemistry, Multidisciplinary
Razieh Moosavi, Ramin Zibaseresht
Summary: In this study, a sensitive and selective probe for cyanide detection based on Ag/Fe3O4 nanoparticles was improved to have higher selectivity and precision in an extended calibration range. The method utilizes both the strong enhancement of scattered light of plasmonic nanoparticles and the fluorescence quenching of cyanide, providing a wider linear range for cyanide detection. This method has great potential for practical applications and is of significance for cyanide measurement.
Article
Chemistry, Analytical
Zichen Yang, Guoqing Chen, Chaoqun Ma, Jiao Gu, Chun Zhu, Lei Li, Hui Gao
Summary: In this study, Surface-Enhanced Raman Scattering (SERS) technology was applied to the detection of quinolone antibiotics, and a combination of magnetic COF-based SERS substrate and machine learning algorithms was used for their classification and quantification. The classification accuracy of the spectral dataset reached 100%. This provides a new method for the detection of antibiotics in dairy products.
Article
Chemistry, Multidisciplinary
Thi Thuy Nguyen, Fayna Mammeri, Souad Ammar, Thi Bich Ngoc Nguyen, Trong Nghia Nguyen, Thi Ha Lien Nghiem, Nguyen Thi Thuy, Thi Anh Ho
Summary: This study reports the formation of silver nanopetal-Fe3O4 poly-nanocrystals assemblies and their application as active substrates for Surface Enhanced Raman Spectroscopy (SERS). The engineered Fe3O4-Ag architectures exhibit plasmonic properties that offer a rough surface with plenty of hot spots for enhancing electrical fields, making them valuable for ultra-sensitive SERS sensing with magnetically assisted collection. Successful detection of trace amounts of Rhodamine 6G (R6G) down to 10(-10) M in water at room temperature was achieved.
Article
Chemistry, Physical
Van-Tuan Hoang, Lemma Teshome Tufa, Jaebeom Lee, Mai Quan Doan, Nguyen Ha Anh, Van Tan Tran, Anh-Tuan Le
Summary: This study investigates the surface-enhanced Raman spectroscopy (SERS) performance of Ag@Fe3O4 core-shell nanoparticles with different sizes. The smallest nanoparticles with thin shell and high shell porosity exhibit significantly improved mass diffusion and SERS performance, making them ideal substrates for highly sensitive detection of organic pollutants. Quantitative SERS measurements using the Ag@Fe3O4 nanoparticles were successfully demonstrated with methylene blue (MB) as probe analytes.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Spectroscopy
Tao Xu, Rongyan Wang, Chenjie Gu, Tao Jiang
Summary: A novel composite substrate of graphitic carbon nitride/molybdenum disulfide/silver with a 3D surface structure was successfully developed for the recyclable detection of gefitinib in serum. The uniform and dense hotspots on the shrubby active surfaces, along with the potential synergistic chemical enhancement of g-C3N4/MoS2 heterosystem, demonstrated a remarkable SERS sensitivity. The type-II heterojunction between g-C3N4 and MoS2, assisted by the localized surface plasmon resonance of Ag NPs, enabled more efficient diffusion of photogenerated e--h+ pairs and contributed to the reliable recyclable detection of gefitinib with ultra-low detection limit and high recycling rates.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2023)
Article
Biochemical Research Methods
Wendai Cheng, Ping Tang, Xuanmeng He, Xinyue Xing, Shengde Liu, Feng Zhang, Xiaoxu Lu, Liyun Zhong
Summary: The synthesized Au/Ag composite-based SERS nanoprobe showed significant advantages in sensitivity and response speed for quantitative characterization of Cr3+ content. This nanoprobe might offer a new strategy for dynamic monitoring of Cr3+ content in human metabolism.
ANALYTICAL AND BIOANALYTICAL CHEMISTRY
(2021)
Article
Engineering, Environmental
Feng Wei, Xinyu Cui, Zhao Wang, Changchang Dong, Jiadong Li, Xiaojun Han
Summary: The study successfully demonstrated the efficient antibacterial performance of Fe3O4@MoS2-Ag nanozyme against E. coli, and revealed a synergistic disinfection effect. Through the collaborative work of peroxidase-like activity, photothermal effect, and Ag+ leakage, the nanozyme could accurately and rapidly attack bacterial membranes, showing broad-spectrum antibacterial capabilities.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Na Chen, Xue-Feng Pan, Zhen-Jie Guan, Ya-Jing Zhang, Kang-Jun Wang, Jian-Tang Jiang
Summary: This study focuses on the rational design of hierarchical heterogeneous structured Fe3O4 for enhanced electromagnetic wave absorption (EMA). By incorporating TiO2 and SiO2 particles as intercalations anchor in Fe3O4 framework, the composites exhibit excellent EMA performance with enhanced absorption bandwidth and intensity. This work provides a novel pathway for fabricating high-performance EMA absorbers.
APPLIED SURFACE SCIENCE
(2024)
Article
Chemistry, Physical
Le Jin, Jiqi Wang, Fei Wu, Yanan Yin, Baoliang Zhang
Summary: In this study, two MXene-based magnetic composites were innovatively fabricated and a high efficiency microwave absorbing system was obtained by blending these composites with the optimal ratio. The microwave absorbing mechanism mainly includes dielectric loss, magnetic loss, multiple reflection, and conductive loss.
Article
Engineering, Environmental
Qinyi Li, Qiangting Zheng, Jiamin Gong, Xiaoyu Guo, Haifeng Yang
Summary: In this study, Fe3O4/Ag@IP6-C3 nanomaterials were fabricated, which can enrich PAHs molecules and exhibit a significant SERS effect. The optimized SERS effect of Fe3O4/Ag@IP6-C3 was validated by simulations and experiments. The Fe3O4/Ag@IP6-C3-based SERS protocol showed specific response to pyrene. The detection linear range and limit of detection for pyrene met the related standards.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Multidisciplinary
Laetitia Bardet, Herve Roussel, Stefano Saroglia, Masoud Akbari, David Munoz-Rojas, Carmen Jimenez, Aurore Denneulin, Daniel Bellet
Summary: The thermal instability of silver nanowires leads to increased electrical resistance in AgNW networks. Understanding the relationship between structural and electrical properties of AgNW networks is crucial for their integration as transparent electrodes in flexible optoelectronics. In situ X-ray diffraction measurements were used to study the crystallographic evolution of Ag-specific Bragg peaks during thermal ramping, revealing differences in thermal and structural transitions between bare and SnO2-coated AgNW networks.
Article
Chemistry, Multidisciplinary
Nathalia Cancino-Fuentes, Arnau Manasanch, Joana Covelo, Alex Suarez-Perez, Enrique Fernandez, Stratis Matsoukis, Christoph Guger, Xavi Illa, Anton Guimera-Brunet, Maria V. Sanchez-Vives
Summary: This study provides a comprehensive characterization of graphene-based solution-gated field-effect transistors (gSGFETs) for brain recordings, highlighting their potential clinical applications.
Article
Chemistry, Multidisciplinary
Sikandar Aftab, Hailiang Liu, Dhanasekaran Vikraman, Sajjad Hussain, Jungwon Kang, Abdullah A. Al-Kahtani
Summary: This study examines the effects of hybrid nanoparticles made of NiO@rGO and NiO@CNT on the active layers of polymer solar cells and X-ray photodetectors. The findings show that these hybrid nanoparticles can enhance the charge carrier capacities and exciton dissociation properties of the active layers. Among the tested configurations, the NiO@CNT device demonstrates superior performance in converting sunlight into electricity, and achieves the best sensitivity for X-ray detection.
Article
Chemistry, Multidisciplinary
Hyo Jung Shin, Seung Gyu Choi, Fengrui Qu, Min-Hee Yi, Choong-Hyun Lee, Sang Ryong Kim, Hyeong-Geug Kim, Jaewon Beom, Yoonyoung Yi, Do Kyung Kim, Eun-Hye Joe, Hee-Jung Song, Yonghyun Kim, Dong Woon Kim
Summary: This study investigates the role of SOX9 in reactive astrocytes following ischemic brain damage using a PLGA nanoparticle plasmid delivery system. The results demonstrate that PLGA nanoparticles can reduce ischemia-induced neurological deficits and infarct volume, providing a potential opportunity for stroke treatment.
Article
Chemistry, Multidisciplinary
Anurag Chaudhury, Koushik Debnath, Nikhil R. Jana, Jaydeep K. Basu
Summary: The study investigates the interaction between nanoparticles and cell membranes, and identifies key parameters, including charge, crowding, and membrane fluidity, that determine the adsorbed concentration and unbinding transition of nanoparticles.
Article
Chemistry, Multidisciplinary
Sina Sadeghi, Fazel Bateni, Taekhoon Kim, Dae Yong Son, Jeffrey A. Bennett, Negin Orouji, Venkat S. Punati, Christine Stark, Teagan D. Cerra, Rami Awad, Fernando Delgado-Licona, Jinge Xu, Nikolai Mukhin, Hannah Dickerson, Kristofer G. Reyes, Milad Abolhasani
Summary: In this study, an autonomous approach for the development of lead-free metal halide perovskite nanocrystals is presented, which integrates a modular microfluidic platform with machine learning-assisted synthesis modeling. This approach enables rapid and optimized synthesis of copper-based lead-free nanocrystals.
Article
Chemistry, Multidisciplinary
Zahir Abbas, Nissar Hussain, Surender Kumar, Shaikh M. Mobin
Summary: The rational construction of free-standing and flexible electrodes for electrochemical energy storage devices is an emerging research focus. In this study, a redox-active metal-organic framework (MOF) was prepared on carbon nanofibers using an in situ approach, resulting in a flexible electrode with high redox-active behavior and unique properties such as high flexibility and lightweight. The prepared electrode showed excellent cyclic retention and rate capability in supercapacitor applications. Additionally, it could be used as a freestanding electrode in flexible devices at different bending angles.
Article
Chemistry, Multidisciplinary
Lishan Zhang, Xiaoting Zhang, Hui Ran, Ze Chen, Yicheng Ye, Jiamiao Jiang, Ziwei Hu, Miral Azechi, Fei Peng, Hao Tian, Zhili Xu, Yingfeng Tu
Summary: Photodynamic therapy (PDT) is a promising local treatment modality in cancer therapy, but its therapeutic efficacy is restricted by ineffective delivery of photosensitizers and tumor hypoxia. In this study, a phototactic Chlorella-based near-infrared (NIR) driven green affording-oxygen microrobot system was developed for enhanced PDT. The system exhibited desirable phototaxis and continuous oxygen generation, leading to the inhibition of tumor growth in mice. This study demonstrates the potential of using a light-driven green affording-oxygen microrobot to enhance photodynamic therapy.
Article
Chemistry, Multidisciplinary
Yujin Li, Jing Xu, Xinqi Luo, Futing Wang, Zhong Dong, Ke-Jing Huang, Chengjie Hu, Mengyi Hou, Ren Cai
Summary: In this study, hollow heterostructured materials were constructed using an innovative template-engaged method as cathodes for zinc-ion batteries. The materials exhibited fast Zn2+ transport channels, improved electrical conductivity, and controlled volume expansion during cycling. The designed structure allowed for an admirable reversible capacity and high coulombic efficiency.
Article
Chemistry, Multidisciplinary
Paritosh Mahato, Shashi Shekhar, Rahul Yadav, Saptarshi Mukherjee
Summary: This study comprehensively elucidates the role of the core and electrostatic surface of metal nanoclusters in catalytic reduction reactions. The electrostatic surface dramatically modulates the reactivity of metal nanoclusters.
Article
Chemistry, Multidisciplinary
Pei Liu, Mengdi Liang, Zhengwei Liu, Haiyu Long, Han Cheng, Jiahe Su, Zhongbiao Tan, Xuewen He, Min Sun, Xiangqian Li, Shuai He
Summary: This study demonstrates a simple and environmentally-friendly method for the synthesis of zinc oxide nanozymes (ZnO NZs) using wasted hop extract (WHE). The WHE-ZnO NZs exhibit exceptional peroxidase-like activity and serve as effective catalysts for the oxidation of 3,3,5,5-tetramethylbenzidine (TMB) in the presence of hydrogen peroxide (H2O2). In addition, a straightforward colorimetric technique for detecting both H2O2 and glucose was developed using the WHE-ZnO NZs as peroxidase-like catalysts.
Article
Chemistry, Multidisciplinary
Hyunkyu Oh, Young Jun Lee, Eun Ji Kim, Jinseok Park, Hee-Eun Kim, Hyunsoo Lee, Hyunjoo Lee, Bumjoon J. Kim
Summary: Mesoporous carbon particles have unique structural properties that make them suitable as support materials for catalytic applications. This study investigates the impact of channel nanostructures on the catalytic activity of porous carbon particles (PCPs) by fabricating PCPs with controlled channel exposure on the carbon surface. The results show that PCPs with highly open channel nanostructures exhibit significantly higher catalytic activity compared to those with closed channel nanostructures.
Article
Chemistry, Multidisciplinary
Yunjie Lu, Zhaohui Li, Zewei Li, Shihao Zhou, Ning Zhang, Jianming Zhang, Lu Zong
Summary: A tough, long-lasting adhesive and highly conductive nanocomposite hydrogel (PACPH) was fabricated via the synergy of interfacial entanglement and adhesion group densification. PACPH possesses excellent mechanical properties, interfacial adhesion strength, and conductivity, making it a promising material for long-term monitoring of human activities and electrocardiogram signals.
Article
Chemistry, Multidisciplinary
Zichao Wei, Audrey Vandergriff, Chung-Hao Liu, Maham Liaqat, Mu-Ping Nieh, Yu Lei, Jie He
Summary: We have developed a simple method to prepare polymer-grafted plasmonic metal nanoparticles with pH-responsive surface-enhanced Raman scattering. By using pH-responsive polymers as ligands, the aggregation of nanoparticles can be controlled, leading to enhanced SERS. The pH-responsive polymer-grafted nanoparticles show high reproducibility and sensitivity in solution, providing a novel approach for SERS without the need for sample pre-concentration.
Article
Chemistry, Multidisciplinary
Melis Ozge Alas Colak, Ahmet Gungor, Merve Buldu Akturk, Emre Erdem, Rukan Genc
Summary: This research investigates the effect of functionalizing carbon dots with hydroxyl polymers on their performance as electrode materials in a supercapacitor. The results show that the functionalized carbon dots exhibit excellent electrochemical performance and improved stability.