Article
Chemistry, Multidisciplinary
Chenyi Yuan, Xiqing Wang, Xuanyu Yang, Abdulaziz A. Alghamdi, Fahad A. Alharthi, Xiaowei Cheng, Yonghui Deng
Summary: Novel sulfonic acid functionalized core-shell Fe3O4@carbon microspheres were designed and synthesized as an efficient and recyclable heterogeneous acid catalyst. These microspheres possess magnetic properties, high saturation magnetization value, uniform core-shell structure, and abundant acid functional groups. They exhibited high selectivity and recyclability in the acetalization reaction, demonstrating promising potential for industrial applications.
CHINESE CHEMICAL LETTERS
(2021)
Article
Polymer Science
Keumkyung Kuk, Lukas Gregel, Vahan Abgarjan, Caspar Croonenbrock, Sebastian Haensch, Matthias Karg
Summary: This paper reports on a one-pot synthesis protocol for micron-sized silica-poly(N-isopropylacrylamide) core-shell microgels and demonstrates excellent control over the shell-to-core ratio. The experimental results show that the synthesized microgels are monodisperse and suitable for optical investigations even at high packing fractions.
Article
Optics
Naheda H. A-Jarah, Ahmed S. Wasfi, S. M. Hamidi
Summary: This study aims to control the performance of random lasers by using magneto-plasmonic Fe3O4@Au and Au@Fe3O4 core shell nanoparticles as scatterer points. The results show that the laser efficiency of the samples is improved when an external magnetic field is applied.
OPTICS AND LASER TECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Gauravjyoti D. Kalita, Podma P. Sarmah, Golap Kalita, Pankaj Das
Summary: A facile ligand-assisted approach was used to synthesize bimetallic Au-Pd nanoparticles with a tunable core@shell structure. The Au-Pd materials exhibited superior performance in two important reactions, with the Pd-core-Au-shell structure showing higher activity compared to the Au-core-Pd-shell structure.
NANOSCALE ADVANCES
(2021)
Article
Nanoscience & Nanotechnology
Dongfang Li, Weina Han, Yanping Yuan, Yan Zhao, Zhaochen Cheng, Jimin Chen
Summary: Active control over the optical response has been achieved by using core-shell nanostructures combining plasmonic nanostructures with an active phase change material. The size and crystallization degree of the phase change shell within each isolated core-shell nanostructure can be actively controlled, enabling tunable optical response. These Au@GST core-shell hetero-nanostructures show high sensitivity to the size of nanoparticles and have the potential for applications in nanophotonic devices.
ACS APPLIED NANO MATERIALS
(2021)
Article
Chemistry, Physical
Bingxin You, Yuyang Tian, Baolin Wang, Guangshan Zhu
Summary: A strategy has been developed to prepare gold nanoparticles supported by porous aromatic frameworks with high loading, stability, and activity. This approach involves ion exchange and reduction steps, resulting in significantly increased loading and excellent catalytic performance.
Article
Chemistry, Multidisciplinary
Raitis Sondors, Gunta Kunakova, Liga Jasulaneca, Jana Andzane, Edijs Kauranens, Mikhael Bechelany, Donats Erts
Summary: The yield and morphology of stoichiometric Bi2Se3 nanoribbons can be influenced by the diameters and areal number density of Au catalyst nanoparticles, with the 3 nm thick Au layer of around 10 nm diameter showing the best synthesis results and highest product quality. The lengths and thicknesses of the Bi2Se3 nanoribbons are directly proportional to the diameters of Au catalyst nanoparticles, while the widths are influenced by the contribution ratio of two main growth mechanisms.
Article
Environmental Sciences
Nisha Rani, Brijnandan S. Dehiya
Summary: The study presents a smart magnetic nanocomposite doped with copper to reduce the energy bandgap of the photocatalyst, allowing for easy recovery after wastewater treatment and demonstrating high efficiency in degrading dyes.
ENVIRONMENTAL TECHNOLOGY
(2022)
Article
Chemistry, Physical
Ping Tang, Meishuang Xing, Liyun Zhong, Xinyue Xing, Huiyang Wang, Shengde Liu, Xiaoxu Lu, Yuwen Qin
Summary: This paper introduces different polyhedral Au nanoparticles as the core of Au@SiO2@Au and analyzes the effect of internal nanogap morphology on local field enhancement. By changing the internal polyhedron-shell nanogap morphology, the polyhedral-Au@SiO2@Au nanoparticle can realize a broadband and tunable strong local electric field enhancement.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Physical
Yan Lv, Lin Yue, Imran Mahmood Khan, You Zhou, Wenbo Cao, Sobia Niazi, Zhouping Wang
Summary: In this study, Fe3O4@TiO2 nanosheet/Ag/g-C3N4 composite photocatalysts with hierarchical yolk-shell structure were fabricated, incorporating multiple functional components for enhanced performance in photodegradation of organic pollutants. The tailored 3D yolk-shell porous nanostructure, extended sunlight response range, and reduced recombination probability of photogenerated electrons-holes contributed to the significant enhancement in photocatalytic activity. Additionally, the hybrid samples demonstrated superior magnetic properties and recyclability, making them promising candidates for future environmental applications.
Article
Nanoscience & Nanotechnology
Mikel Rincon-Iglesias, Irati Rodrigo, Leixuri B. Berganza, Esraa Samy Abu Serea, Fernando Plazaola, Senentxu Lanceros-Mendez, Erlantz Lizundia, Javier Reguera
Summary: This study reports on the synthesis of Fe3O4@Au core-shell nanorods and their incorporation into an agarose hydrogel to achieve anisotropic magnetic and optical properties. The results demonstrate the potential application of these materials in magneto- and photothermal therapy.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Engineering, Electrical & Electronic
Giancarlo Margheri
Summary: A method utilizing localized swelling of a PDMS-gold bilayer to construct a reflective axicon-like structure has been proposed. The device is capable of forming virtual foci with a diameter of tens of micrometers and a depth of focus up to 103 mm, and is completely reconfigurable under pump power densities of up to 207.3 W/mm(2). The width of the apical region of the device is adjustable based on the size of the pump focal spot, making it suitable for miniaturized systems.
IEEE PHOTONICS TECHNOLOGY LETTERS
(2022)
Article
Engineering, Chemical
Jingjing Pan, Haoran Sun, Keyi Chen, Yuhao Zhang, Pengnian Shan, Weilong Shi, Feng Guo
Summary: Photocatalysis is an environmentally friendly and energy-saving technology for removing dangerous pollutants from water. Nanodiamonds/yolk-shell ZnFe2O4 spheres (NDs/ZFO) nanocomposites were successfully synthesized via solvothermal and calcination methods, exhibiting superior photocatalytic degradation activity and durable cycling stability. The NDs/ZFO composite photocatalyst also features excellent magnetic recovery capability for industrial application.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2023)
Article
Chemistry, Physical
Yucheng Li, Rui Zhao, Feihong Hu, Peng Lu, Dandan Ji, Qi Luo, Guodong Li, Dehai Yu, Huili Wang, Zhaoping Song, Shan Li, Wenxia Liu
Summary: By utilizing the assembly and formation of laponite/lauric arginate (LAE) complexes near the water-oil interface, stable spherical emulsions of alkyl ketene dimer (AKD) with tunable shells were successfully prepared. The system exhibited characteristics of adjustable shell, droplet size, resistance to oil agglomeration, and long-term stability, showing promising applications in paper sizing agents and other fields.
APPLIED CLAY SCIENCE
(2021)
Article
Chemistry, Analytical
Chao Liu, Hui Wang, Shengmin Xu, Hongbao Li, Yilin Lu, Chuhong Zhu
Summary: In this study, Fe3O4@SiO2@Au three-layer core/shell nanoparticles were synthesized and modified with 4-mercaptopyridine to form a surface-enhanced Raman scattering (SERS) sensor. The sensor can easily capture mercury ions in water and evaluate their concentration based on the spectral changes of 4-mercaptopyridine. The SERS sensor shows good stability, accuracy, and anti-interference ability, and has the potential to detect actual samples.
Article
Engineering, Environmental
Guoqiang Liu, Yang Feng, Nan Zhao, Zhuo Chen, Junqin Shi, Feng Zhou
Summary: In recent years, functional polymeric materials have been widely used to achieve versatile hydration lubrication, mainly categorized as: (i) stimuli-responsive lubricating materials controlled by external stimuli; (ii) biomedical lubricating materials integrating lubricating ability into biomedical materials; (iii) biomimetic lubricating materials designed by learning from living organisms and nature.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Xingmin Liu, Heqiang Liu, Hailong Xu, Wenjie Xie, Minghang Li, Jianxi Liu, Guoqiang Liu, Anke Weidenkaff, Ralf Riedel
Summary: Hierarchically cellular, stiff, and lightweight NbC-PyC monolithic foam composites with excellent EMI SE were developed using a natural wood template-based method. Various loss mechanisms and low density contribute to the superior absorption capability of the material compared to other porous-based shielding materials.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Engineering, Mechanical
Jinglun Guo, Pengxi Wu, Cheng Zeng, Wei Wu, Xiangyuan Zhao, Guoqiang Liu, Feng Zhou, Weimin Liu
Summary: This research investigates the use of fluorinated MXene as a lubricant additive, aiming to improve its lubricity in fluorine-containing lubricating oils by enhancing its dispersibility. The fluorinated modified MXene demonstrates improved anti-friction and anti-wear properties in steel/steel contact.
TRIBOLOGY INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Guoqiang Liu, Mingming Rong, Hong Hu, Lina Chen, Zhuang Xie, Zijian Zheng
Summary: Dip-pen nanolithography has been developed to enable microscale 3D printing capability by designing specific ink, and can generate arbitrary 3D structures. This development will arouse interest in fundamental research and practical applications in the field.
ADVANCED MATERIALS TECHNOLOGIES
(2022)
Article
Engineering, Environmental
Nan Zhao, Xiaohua Gao, Zhuo Chen, Yang Feng, Guoqiang Liu, Feng Zhou, Weimin Liu
Summary: A super-lubricating hybrid elastomer with rapid photothermal sterilization and strong anti-cell adhesion capacities is developed by grafting lubricating polymers onto NIR photothermal Fe3O4 nanoparticles-loaded polydimethylsiloxane substrate. This elastomer achieves super low friction through hydration lubrication, rapid photothermal bactericidal performance by NIR irradiation, and shows a strong anti-adhesion effect against HepG2 cells.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Engineering, Mechanical
Guoqiang Liu, Yang Feng, Xiaohua Gao, Zhuo Chen, Nan Zhao, Feng Zhou, Weimin Liu
Summary: This study provides a biomimetic approach for synthesizing a microgel with effective lubricating properties by combining brush-like molecular structures and gel-like assembly. The microgel demonstrated low friction in aqueous medium and maintained effective lubrication at high temperature. It also showed good biocompatibility, making it a potential candidate for biomedical applications.
Review
Clinical Neurology
Hao-Zhi Yang, Guo-Qiang Liu, Hong Xia, Xiang-Yang Ma, Jian-Hua Wang
Summary: This study describes the variation of vertebral artery (VA) in patients with or without osseous anomalies at the congenital craniovertebral junction (CVJ). The study classifies the VA variation into 10 subtypes and provides a comprehensive classification.
Article
Chemistry, Multidisciplinary
Xingmin Liu, Heqiang Liu, Hongjing Wu, Qian Zhou, Hongsheng Liang, Guoqiang Liu, Wenyan Duan, Yue Gu, Chengying Xu, Nahum Travitzky, Paolo Colombo, Ralf Riedel
Summary: In this work, ceramic-based structural EM metamaterials are developed by utilizing innovative methods such as AM, precursor infiltration and pyrolysis (PIP), and hydrothermal methods. The resulting ceramic nanocomposites exhibit ultra-broad effective absorption bandwidth (EAB) of 35 GHz and high bending strength of approximately 327 MPa, which are the highest values reported for ceramics of this type that have been 3D-printed.
Article
Chemistry, Multidisciplinary
Kai Feng, Guodan Wei, Yubo Liu, Yang Wu, Feng Zhou
Summary: A novel iridescent coating with multiple-stimuli-responsive coloration was fabricated through photochemical cross-linking of cellulose nanocrystals (CNCs), poly-(ethylene glycol) diacrylate (PEGDA), and erythritol. The coating exhibited improved mechanical strength and the ability to quickly distinguish different organic solvents based on surface color change. It also showed reversible humidity sensitivity and anti-counterfeiting performance, making it a potential candidate for solvent sensors, test papers, and encryption tools.
ACS SUSTAINABLE CHEMISTRY & ENGINEERING
(2023)
Article
Engineering, Mechanical
Pengxi Wu, Cheng Zeng, Jinglun Guo, Guoqiang Liu, Feng Zhou, Weimin Liu
Summary: This work presents a uniformly dispersed MXene-functionalized poly-N-isopropylacrylamide (PNIPAM)/poly-2-acrylamido-2-methyl-1-propanesulfonic acid (PAMPS) double network hydrogel (M-DN hydrogel) that can achieve switchable friction regulation using near-infrared light (NIR light). The compatibility of MXene with hydrogels was improved by incorporating chitosan (CS) polymer. The M-DN hydrogel showed low coefficient of friction (COF) at 25°C due to the presence of a hydration layer on the hydrogel surface. Upon NIR light illumination, the M-DN hydrogel exhibited a significant increase in surface COF due to the destruction of the hydration layer, enabling controllable friction regulation.
Article
Engineering, Biomedical
Qi Gan, Lina Chen, Ho-Pan Bei, Sze-Wing Ng, Han Guo, Guoqiang Liu, Hao Pan, Changsheng Liu, Xin Zhao, Zijian Zheng
Summary: A stable and soft surface modification strategy is developed in this study to covalently immobilize bone morphogenetic protein-2 (BMP-2) onto poly (glycidyl methacrylate) (PGMA) polymer brushes, enhancing its bioactivity and facilitating its application in tissue engineering scaffolds. The immobilized BMP-2 exhibits excellent bioactivity, preserving conformation and secondary structure after covalent immobilization and sterilization. The use of PGMA polymer brushes outperforms conventional protein covalent immobilization strategies in terms of bioactivity preservation and therapeutic efficacy.
BIOACTIVE MATERIALS
(2023)
Article
Nanoscience & Nanotechnology
Zhenling Shang, Guoqiang Liu, Yue Sun, Chenghao Li, Nan Zhao, Zhuo Chen, Ruisheng Guo, Zijian Zheng, Feng Zhou, Weimin Liu
Summary: As a flexible and conductive material, the developed ionic conductive hydrogel shows excellent properties, such as long-lasting adhesion, extreme environmental tolerance, high tensile strength, and superior antibacterial property. In addition, the hydrogel strain sensor exhibits high strain sensitivity, excellent signal sensing capabilities, and long-term cyclic stability. This work provides a promising strategy for using hydrogel sensors in extreme environments, contributing to the development of e-skin, health monitoring, and wearable electronic devices.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Chemistry, Physical
Zhuo Chen, Yining Liu, Yue Sun, Guoqiang Liu, Feng Zhou, Weimin Liu
Summary: Ti6Al4V artificial joint heads require a coating that can enhance their surface lubricity. Inspired by mussels' adhesion proteins in the ocean, a lubricating layer can be bonded to the Ti6Al4V surface. This work not only improves the lubrication performance of the surface, but also incorporates adjustable lubrication characteristics by utilizing the photothermal conversion ability of MoS2 nanosheets.
APPLIED SURFACE SCIENCE
(2023)
Article
Engineering, Mechanical
Jinglun Guo, Zhenling Shang, Yue Sun, Chenghao Li, Jianyi Xia, Yuxin Zou, Kang Du, Guoqiang Liu, Feng Zhou, Weimin Liu
Summary: This study demonstrates a PFPE supramolecular gel with surface-functionalized Ti3C2Tx as additives, which enables highly efficient boundary lubrication and prevention of creep. The gel transforms into an oily liquid at 124.5 degrees C, accompanied by a rapid decrease in viscosity. Additionally, the gel's phase transition can be achieved by shear stress. It significantly reduces wear volume and has a stable friction coefficient, with a load-bearing capacity exceeding 1500 N.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Oncology
Chaosen Lu, Aocai Yang, Fei Xia, Guoqiang Liu, Hongliang Zhao, Wenwei Zhang, Yuanyuan Li, Jian Liu, Guolin Ma, Hui Xia
Summary: Liquid metal (LM) is a new biomedical material for medical treatment, with potential applications for tumor therapy. This study aimed to investigate the inhibitory effect of LM on tumor growth and highlight the negative resection margin (NRM) of the tumor. LM was injected into the interstitial channels of mice, and its distribution in vivo was observed using MRI and Magneto-acoustic tomography (MAT). The results showed that LM significantly inhibited tumor growth and had a lower impact on blood test indexes compared to the control groups. LM was also found to improve tumor imaging and served as a potential MRI contrast agent. Additionally, LM had mild biocompatibility.
FRONTIERS IN ONCOLOGY
(2022)