Article
Chemistry, Analytical
Tian Guan, Yudong Shen, Zhuo Jiang, Yingju Liu, Qileng Aori, Anastasios Koidis, Xiaojun Yao, Hongtao Lei
Summary: This study introduces a novel approach to synthesize antibody-decorated vesicles with high QDs-loading, outstanding dispersity, and high quantum yields, leading to significant improvements in sensitivity and accuracy for immunoassays.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Multidisciplinary Sciences
Toshihiko Fujimori, Daiji Yamashita, Yoshiya Kishibe, Momoko Sakai, Hirotaka Inoue, Takamasa Onoki, Jun Otsuka, Daisuke Tanioka, Takeshi Hikata, Soichiro Okubo, Keishi Akada, Jun-ichi Fujita
Summary: This study reports a one-step fabrication method for aligned and high-quality carbon nanotubes (CNTs) using gas rectifier-assisted fluidic control. Computational fluid dynamics simulation reveals that the narrow channels of the gas rectifier provide steady and accelerated flow of the reaction gas, resulting in the spontaneous formation of aligned bundles of CNTs along the gas flow direction. Wet processing further reduces the inter-tube voids in the CNT bundles, leading to high-performance CNT fibers with excellent tensile strength and elongation properties.
SCIENTIFIC REPORTS
(2022)
Article
Polymer Science
Andrew Harrison, Christina Tang
Summary: This study successfully demonstrated the capability of performing multiple reaction steps in one pot using amphiphilic nanoreactors dispersed in water, with the ability to spontaneously separate the product, potentially reducing solvent waste and simplifying the isolation of the desired product and reuse of the catalyst.
Article
Chemistry, Physical
Emeline Charon, Mathieu Pinault, Martine Mayne-L'Hermite, Cecile Reynaud
Summary: The one-step aerosol-assisted catalytic chemical vapor deposition (CCVD) process, operated in a H-2-based carrier gas, can efficiently prepare forests of vertically aligned multiwalled carbon nanotubes (VACNTs) with high purity and good crystalline level at extremely low ferrocene content. The iron content in the VACNT sample is proportional to the ferrocene concentration in the precursor, while reducing the ferrocene concentration leads to a decrease in VACNT number density and an increase in growth rate with similar CNT diameters and crystalline structure, indicating high oxidation resistance.
Article
Chemistry, Physical
Abdul Rahim Siddiqui, Wen Li, Fajun Wang, Junfei Ou, Alidad Amirfazli
Summary: A self-cleaning, transparent superhydrophobic silica-based surface was fabricated by one-step thermal oxidation of silicone grease, showing excellent stability and light transparency, which can be used for engineering applications in self-cleaning glasses.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
A. Andalouci, Y. Roussigne, L. Gangloff, P. Legagneux, S. Farhat, S. M. Cherif
Summary: In this study, vertically aligned multiwalled carbon nanotubes (MWCNTs) filled with Co magnetic nanowires were synthesized in a one-step process using bias-assisted plasma enhanced chemical vapor deposition (PECVD) method. The growth, alignment, and filling of the carbon nanotubes were achieved simultaneously by applying a negative bias to the substrate. The structural investigations revealed the growth mechanisms, and the analysis confirmed the presence of Co, Pd, C, N, and O in the nanotubes. The hysteresis cycles exhibited ferromagnetic behavior, with higher coercive field values observed for nail-shaped Co nanoparticles embedded in the CNTs.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Analytical
Wei Yin Lim, Choon-Hian Goh, Keenan Zhihong Yap, Narayanan Ramakrishnan
Summary: Irregularities in breathing patterns can be predicted with the help of breath monitor sensors that detect variations in humidity during inhalation and exhalation. Graphene-based RH sensors show excellent sensitivity, stability, and repeatability. By embedding the sensor into a face mask and interfacing it with a microcontroller, different breathing situations can be measured, making it a promising wearable and disposable healthcare technology.
Article
Chemistry, Physical
Ya-feng Deng, Yong Chen, Xiu-li Zhang, Qian Zhang, Zi-jian Wei, Dong Wang
Summary: A novel method has been applied to prepare CuSe@NiSe nanosheets with excellent electrochemical and cycling performance on the surface of copper foam. The solid-state flexible capacitors made with this material demonstrate outstanding performance and cycle stability.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Physics, Applied
Igor O. Akimchenko, Gleb E. Dubinenko, Sven Rutkowski, Sergei Tverdokhlebov, Alexander O. Vorobyev, Vyacheslav M. Bouznik, Evgeny N. Bolbasov
Summary: This study explores the possibility of 3D printing polymer forms with a ferroelectric crystal structure in a one-step process, utilizing a specific copolymer as filament and a commercial 3D printer for printing. Some interesting results were obtained, including the retention of ferroelectric properties and an increase in crystallinity after annealing.
APPLIED PHYSICS LETTERS
(2021)
Article
Chemistry, Multidisciplinary
Jin Xu, Ruoxing Wang, Haoqing Jiang, Xingtao Liu, Licong An, Shengyu Jin, Biwei Deng, Wenzhuo Wu, Gary J. Cheng
Summary: In this study, ultrafast laser direct writing was combined with an external magnetic field for the first time to achieve mass production of 3D hybrid materials with unique functions. Metal-organic framework crystals were used as precursors to support graphene-coated ultrafine cobalt nanoparticles on 3D porous carbon. The study demonstrated significant improvements in electrochemical water-splitting tests due to the alignment of nanoparticles and controlled elemental compositions induced by the magnetic field.
Article
Chemistry, Analytical
Wenchao Duan, F. Javier del Campo, Marti Gich, Cesar Fernandez-Sanchez
Summary: The need for fast, user-friendly, and cost-effective analytical approaches to water quality control and management has increased as the importance of water for human and environmental health is being recognized. This study presents the fabrication and assessment of a simple electrochemical sensor for measuring dissolved chemical oxygen demand (COD) in water samples from urban wastewater treatment plants (UWWTP). The sensor is fabricated using screen printing and includes a three-electrode cell configuration with a working electrode made of a composite material containing a porous carbon matrix and copper nanoparticles. A unique feature of this device is the use of a paper disk loaded with sodium hydroxide to filter the sample and condition the pH. The sensor allows for measurements by casting a small sample drop without any further user intervention. The fabrication process can be scaled up for mass production. The sensor's performance is evaluated using glucose as a standard analyte, and it shows a linear range up to 400 mg L-1 O2 with a limit of detection of 26 mg L-1 O2, well below the EU legal concentration limit for UWWTP effluents. Real water samples were also analyzed, and the COD sensor values were found to agree with those obtained using the standard dichromate method at a certified laboratory. This miniaturized sensor platform simplifies the analytical procedure for measuring COD, allowing for rapid decentralized analysis and precise control of urban wastewater treatment.
SENSORS AND ACTUATORS B-CHEMICAL
(2022)
Article
Multidisciplinary Sciences
Bilge Nazli Altay, Vikram S. Turkani, Alexandra Pekarovicova, Paul D. Fleming, Massood Z. Atashbar, Martin Bolduc, Sylvain G. Cloutier
Summary: Photonic curing is effective in maintaining the integrity of flexible polymer substrates while sintering printed ink films at high temperatures in milliseconds. It is a suitable method for fabricating electronic devices on flexible substrates.
SCIENTIFIC REPORTS
(2021)
Article
Environmental Sciences
Bo Gong, Wei Chen, Xian-Wei Liu, Chen Qian
Summary: In this study, a new fluorescence approach based on excitation emission matrix (EEM), combined with a new algorithm called matrix reconstruction coupled with prior linear decomposition (MR-PLD), was developed to simultaneously quantify multiple dissolved organic matter (DOM) components. The method was validated using simulated water samples and showed higher accuracy and convenience compared to other methods. The anti-interference performance of MR-PLD was also tested using both simulated and experimental methods. Real water samples from natural waters and wastewater treatment plants were analyzed to confirm the method's robustness. This study provides a new approach for characterizing DOM and exploring its environmental impacts.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Chemistry, Multidisciplinary
Yaobin Lai, Sitian Zhu, Jian Li, Hui Zhang, Tao Qi
Summary: A novel one-step liquid phase reduction method using La(OH)3 as structure-directing agent was proposed to synthesize uniform micro-sized flake silver particles at room temperature. The effect of reagents and synthesis parameters on the morphology and particle size of the silver particles was investigated. The synthesized micro-sized flake silver particles showed improved surface properties and were more conductive compared to commercially prepared ball-milled silver particles. (Rating: 9 out of 10)
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Materials Science, Multidisciplinary
Na Shi, Longlin Lu, Fengzhen Guo, Zhenjiang Li, Lei Shen, Jin Huang, Kai Guo
Summary: This article reports a one-pot, one-step strategy for synthesizing cyclic amphiphilic block copolymers. The copolymerization temperature affects the block length of the copolymer, and scanning and transmission electron microscopy reveal the formation of nanostructures.
ACS APPLIED POLYMER MATERIALS
(2023)