Article
Chemistry, Analytical
Wenwen Meng, Mengyao Li, Yuzhong Zhang
Summary: This study reported a method for sensitive detection of the cancer biomarker alpha-fetoprotein (AFP) using ADM-coated silica microspheres as labels. The immunoassay achieved successful determination of AFP concentrations by forming a sandwich structure on the surface of Au NP-reduced graphene oxide nanocomposites.
ANALYTICAL METHODS
(2021)
Article
Chemistry, Physical
Abdullah Abdulhameed, Mohd Mahadi Halim, Izhal Abdul Halin
Summary: In this article, the different roles of dielectrophoresis (DEP) and AC electroosmosis (ACEO) in manipulating conductive and insulator particles were investigated. A computational model using the finite element method (FEM) was implemented to understand the interplay and velocities caused by these two electrokinetic phenomena. Simulation and experimental results showed that Carbon Nanotubes (CNTs) experience positive DEP (pDEP) up to frequencies of 1 GHz, while polystyrene (PS) particles only showed negative DEP (nDEP) regardless of the frequency. The study provides a simplified and reliable technique for manipulating different types of particles for future fabrication and deposition applications.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2023)
Article
Polymer Science
Yuanyuan Zhang, Xiangqiang Pan, Jian Zhu
Summary: Selenium-containing polystyrene microspheres were synthesized by soap-free emulsion polymerization with the diameter being adjustable by changing the ratio of monomer and crosslinker/water. The oxidized microspheres exhibited higher catalytic activity and selectivity to methyl acrylate.
Article
Physics, Applied
L. Galdun, R. Vidyasagar, M. Hennel, M. Varga, T. Ryba, L. Nulandaya, O. Milkovic, M. Reiffers, J. Kravcak, Z. Vargova, R. Varga
Summary: The experimental observation of the structural phase transformation in a non-stoichiometric shape memory Fe42.8Mn27.6Ga29.6 Heusler glass-coated microwire was found to be in good agreement with magnetic, permeability, and electrical resistance measurements, providing evidence for the shape memory effect. The glass-coated microwire can not only shift the transformation temperature with an external magnetic field, but also determine whether the alloy has undergone structural transformation based on its initial permeability value.
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2022)
Article
Chemistry, Analytical
Hye Jin Kim, Heeju Ahn, Hongrae Kim, Dongsung Park, Jin San Lee, Byung Chul Lee, Jinsik Kim, Dae Sung Yoon, Kyo Seon Hwang
Summary: The correlation between A beta and tau levels in plasma and brain accumulation has led to increased interest in quantifying these biomarkers in plasma as an alternative method for diagnosing Alzheimer's disease. A biosensor utilizing IMEs, PS, and DEP force showed high sensitivity and accuracy in distinguishing between AD patients and normal controls in clinical plasma samples. This technology has great potential for improving the clinical diagnosis of AD.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Multidisciplinary Sciences
Jiawei Wang, Jin Li, Shengqi Sun, Haiyun Dong, Lan Wu, Engui Zhao, Feng He, Xing Ma, Yong Sheng Zhao
Summary: In this study, the diffusion dynamics in polymer micro-objects are detected in situ by utilizing optical whispering-gallery mode resonances. The interactions between solvent molecules and polymer microspheres, such as sorption, diffusion, and swelling, are quantitatively analyzed through mode tracking. A turning point of mode response is observed when diffusion exceeds the sub-wavelength-thick outermost layer and starts penetrating the inner core. The estimated solubility in the glassy polymer agrees with the predicted value using Flory-Huggins theory. Besides, non-Fickian contribution is analyzed in the glassy polymer-penetrant system. This work represents a high-precision and label-free approach to describing characteristics in diffusion dynamics.
Article
Spectroscopy
Shahid Ali Khan, Esraa M. Bakhsh, Abdullah M. Asiri, Sher Bahadar Khan
Summary: The research paper investigates the discoloration of methylene blue and rhodamine B dyes by incorporating gold nanoparticles into chitosan and Nickel-Aluminum Layered Double Hydroxide microspheres, where Au/LDH shows stronger catalytic activity and high selectivity due to its small crystallite size, enhancing the stability of Au NPs.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Polymer Science
Siyu Lu, Fan Li, Bo Liu, Kun Yang, Feng Tian, Zhi Cheng, Sheng Ding, Kexin Hou, Ian Wyman
Summary: Staphylococcus aureus is a common cause of hospital-acquired infections and foodborne illnesses and is widely present in nature. In this study, highly monodisperse fluorescent polystyrene microspheres were prepared, which exhibited similar fluorescence spectra and particle size distribution to SA aerosols. The fluorescence characteristics of the microspheres remained similar even after 180 days, providing a new idea for analogs of SA aerosols.
Article
Energy & Fuels
Vishnu Sankar Sivasankarapillai, N. Veni Keertheeswari, Priyanka Chahal, Saikh Mohammad Wabaidur, Vinoth Kumar Ponnusamy, Ragupathy Dhanusuraman
Summary: In this work, a simple two-step electrodeposition strategy was developed to fabricate morphology-controlled gold microspheres (AuMS) decorated polydiphenylamine (PDPA) nanohybrid modified FTO electrode. The PDPA/AuMS modified electrode was characterized using XRD and SEM/EDX mapping techniques. The as-fabricated PDPA/AuMS modified FTO electrode showed excellent electrocatalytic activity for methanol oxidation reaction (MOR) and exhibited extended stability and durability. Based on the results, the PDPA/AuMS nanohybrid composite can be applied as a potential electrocatalyst/alternative electrode for direct methanol fuel cell (DMFC) applications.
Article
Green & Sustainable Science & Technology
Nimisha Thakur, W. Armstrong
Summary: A green, low-cost adsorbent based on geopolymer microspheres was reported for arsenic adsorption for the first time. The iron oxide modified geopolymer microparticles showed excellent arsenic adsorption performance, especially with high removal rates for different arsenic species under specific conditions.
JOURNAL OF CLEANER PRODUCTION
(2021)
Article
Chemistry, Physical
Wen Zeng, Weiqing Huang, Bing Guo, Yang Sun, Hangyan Shen
Summary: To improve the lubrication performance of polystyrene microspheres in drilling fluids, composite microspheres with elastic graphite, montmorillonite, and polytetrafluoroethylene were prepared. The friction coefficient of the composite microspheres was significantly reduced compared to pure water, with PTFE/PS showing the largest reduction at 62%. The wear tracks of the composite microspheres were narrower and smoother than those of pure water.
Article
Environmental Sciences
Sakthinarenderan Sai, Ravi Mani, Parameswaran Vijayakumar, Mirunalini Ganesan, Karthick Velu, Ramamoorthy Ayyamperumal, Rajinikanth Rajagopal, Soon Woong Chang, Ahmed Alfarhan, Balasubramani Ravindran
Summary: Plastic pollution is a serious problem in aquatic environments. This study focused on comparing the toxicity of synthetic plastic and bioplastic on fish to understand the degradability and toxicity of bioplastics. The results showed that fish exposed to bioplastic microspheres exhibited significant tissue necrosis and alteration.
Article
Materials Science, Coatings & Films
Kun-An Chiu, Pin-Hsun Wu, Wei-Lin Wang, Lin-Lung Wei, Jr-Sheng Tian, Chun-Yen Peng, Yue-Han Wu, Li Chang
Summary: This study investigates the homoepitaxial growth of (111)-oriented diamond films on Au-coated and Ni-coated diamond substrates using microwave plasma chemical vapor deposition (CVD). The results show that Au and Ni islands are in epitaxy with the diamond substrate, and no diamond growth occurs on top of those islands in the early stage of diamond deposition. The overgrowth of diamond over the metal islands results in a continuous film with a lower defect density.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Physics, Multidisciplinary
Meifang Liu, Xing Ai, Yiyang Liu, Qiang Chen, Shuai Zhang, Zhibing He, Yawen Huang, Qiang Yin
Summary: Deuterated polymer microspheres can be efficiently used as a neutron source in fusion experiments, and a new solid deuterated polymer microsphere with a CH-CD multilayer structure has been designed for this purpose. By controlling droplet size and deposition parameters, solid CH-CD microspheres with specified sizes can be successfully prepared. It was found that solid PAMS beads are more suitable as a mandrel for fabricating these microspheres, meeting the physical design requirements for inertial confinement fusion.
MATTER AND RADIATION AT EXTREMES
(2021)
Article
Forestry
Jing Hu, Yi Liu, Wei Xu, Zhihui Wu, Xiaoren Pang
Summary: Polystyrene (PSt) microspheres were utilized to create rainbow-like color coatings on wood surfaces by adjusting the amount of emulsifier SDBS and emulsion polymerization temperature. The particle size and monodispersity of the microspheres were influenced by these factors. The optimal optical effect was achieved with specific amounts of emulsion coating and ambient temperature, while patterned decorations were successfully formed on the wood surface using structural colors.
Article
Nanoscience & Nanotechnology
Kailiang Zhang, Yukun Ren, Likai Hou, Ye Tao, Weiyu Liu, Tianyi Jiang, Hongyuan Jiang
MICROFLUIDICS AND NANOFLUIDICS
(2020)
Article
Chemistry, Analytical
Kailiang Zhang, Yukun Ren, Likai Hou, Tianyi Jiang, Hongyuan Jiang
ANALYTICAL CHEMISTRY
(2020)
Article
Biochemical Research Methods
Weiyu Liu, Yukun Ren, Rui Xue, Chunlei Song, Qisheng Wu
Article
Physics, Applied
Weiyu Liu, Yukun Ren, Ye Tao, Zhuofeng Zhou, Qisheng Wu, Rui Xue, Bobin Yao
JOURNAL OF PHYSICS D-APPLIED PHYSICS
(2020)
Article
Chemistry, Analytical
Haizhen Sun, Yukun Ren, Ye Tao, Weiyu Liu, Tianyi Jiang, Hongyuan Jiang
SENSORS AND ACTUATORS B-CHEMICAL
(2020)
Article
Engineering, Electrical & Electronic
Yukun Ren, Rui Xue, Weiyu Liu, Ye Tao, Fubing Bao
JOURNAL OF MICROMECHANICS AND MICROENGINEERING
(2020)
Article
Chemistry, Analytical
Weiyu Liu, Yukun Ren, Ye Tao, Hui Yan, Congda Xiao, Qisheng Wu
Article
Chemistry, Analytical
Weiyu Liu, Yongjun Sun, Hui Yan, Yukun Ren, Chunlei Song, Qisheng Wu
Article
Chemistry, Multidisciplinary
Rui Xue, Weiyu Liu, Tianyi Jiang, Chunlei Song, Hongyuan Jiang, Yukun Ren
ADVANCED MATERIALS INTERFACES
(2020)
Article
Chemistry, Physical
Likai Hou, Yukun Ren, Weiyu Liu, Xiaokang Deng, Xiaoming Chen, Tianyi Jiang, Gaohui Wu, Hongyuan Jiang
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2020)
Article
Biochemical Research Methods
Weiyu Liu, Ye Tao, Rui Xue, Chunlei Song, Qisheng Wu, Yukun Ren
Summary: This study presents an efficient microfluidic approach for continuous transport and localized collection of nanoparticles via hybrid electrokinetics. By combining linear and nonlinear electrokinetics driven by a composite DC-biased AC signal, nanoparticles can be continuously transported and trapped selectively onto metal strips, allowing for localized analyte enrichment. The proposed technique has potential applications in flexible electrokinetic frameworks for continuous-flow analyte manipulation in modern microfluidic systems.
Article
Engineering, Chemical
Haizhen Sun, Yukun Ren, Ye Tao, Tianyi Jiang, Hongyuan Jiang
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2020)
Article
Chemistry, Analytical
Xiaoming Chen, Yukun Ren, Tianyi Jiang, Likai Hou, Hongyuan Jiang
Summary: A practical device based on induced-charge electroosmotic (ICED) vortices has been developed for high-resolution separation of rich-lipid microalgae, showcasing strong potential in microorganism separation and extraction. This technology demonstrates clear separation and high resolution in nanoparticle manipulation, with applications extending to various fields such as energy security, environmental monitoring, and disease diagnosis.
ANALYTICAL CHEMISTRY
(2021)
Article
Chemistry, Analytical
Kailiang Zhang, Yukun Ren, Meiying Zhao, Tianyi Jiang, Likai Hou, Hongyuan Jiang
Summary: The study introduces a method for manipulating microswimmers using thermal buoyancy-capillary convection in multiple microfluidic systems. By adjusting the voltage applied on microheaters, the direction and velocity of granular samples in liquid buffer can be flexibly controlled, which is applicable to various applications such as cargo delivery and sensing.
ANALYTICAL CHEMISTRY
(2021)
Article
Biochemical Research Methods
Weiyu Liu, Ye Tao, Zhenyou Ge, Jian Zhou, Ruibo Xu, Yukun Ren
Summary: Liquid metal (LM) combines the advantages of solid conductors and rheological fluids, providing new opportunities in the construction of flexible microelectronic and fluidic devices. Continuous electrowetting (CEW) is used to manipulate LM droplets in a buffer medium by driving bipolar counterions to reduce the surface tension at the LM/electrolyte interface. Through this mechanism, LM can induce unidirectional pumping of electrolytes and translate within a device channel, showing potential in the design of smart electrokinetic frameworks.
