Article
Chemistry, Physical
Xin Ge, Weili Song, Xinzhi Chen, Chao Qian, Shaodong Zhou, Xuemin Liu
Summary: A tandem process of micellar catalysis and cloud point extraction was developed for copper-catalyzed Ullmann C-S coupling reactions in water. The study showed that M2070 provided an excellent nano-micelle environment for encapsulation and aggregation of substrates, facilitating efficient catalysis reactions.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2021)
Article
Energy & Fuels
Souptik Bhattacharya, Deepanjali Gupta, Dwaipayan Sen, Chiranjib Bhattacharjee
Summary: The study demonstrated a sustainable hybrid extraction strategy for allicin from garlic, showing increased efficiency and reduced degradation. The results indicated that the method maintained the bioactivity of allicin, making it a suitable and effective approach for allicin extraction.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2021)
Article
Chemistry, Multidisciplinary
Sivananth Murugesan, Regupathi Iyyaswami, Palash J. Khandelwal
Summary: The nonionic surfactant-based cloud point extraction method was successfully implemented in a modified device to extract polyhydroxyalkanoate from fermentation broth. By studying the effect of rotor speed and phase flowrates, higher recovery rate and purity were achieved, while a correlation model was developed for predicting dispersed-phase holdup.
SEPARATION SCIENCE AND TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Yihan Liu, Yanan Han, Zhaohui Huang, Ping Qi, Aixin Song, Jingcheng Hao
Summary: Nonionic poly(oxyethylene) monoalkyl ether and cationic hexadecylpyridinium bromide were used to achieve transparency transition between warm and cool states. The liquid state has the advantages of free-flowing, frost resistance, flexible adjustment and solar energy storage capability due to its moisture-rich characteristics, while the hydrogel state exhibits free-standing properties.
CHEMICAL COMMUNICATIONS
(2022)
Article
Chemistry, Multidisciplinary
Peter Kroll, Julius Benke, Sabine Enders, Christoph Brandenbusch, Gabriele Sadowski
Summary: This study investigated the self-assembly of different types of CiEj surfactants by measuring their critical micelle concentration (CMC), aggregation number, and hydrodynamic radius. The results showed that temperature, surfactant concentration, and molecular structure all influenced the self-assembly of the surfactants, affecting their sizes and shapes.
Review
Chemistry, Analytical
Swadesh Mandal, Susanta Lahiri
Summary: Cloud point extraction (CPE) is a greener alternative to conventional separation techniques in the field of analytical chemistry. This article provides an overview of various aspects of CPE and its recent developments, focusing on the extraction and speciation of metal ions and anionic species. The article also briefly discusses the extraction and determination of nanoparticles by CPE.
MICROCHEMICAL JOURNAL
(2022)
Article
Chemistry, Analytical
Raymond B. Yu, Joselito P. Quirino
Summary: Pseudophase microextraction (PPME) is presented as a simple in-line sample concentration technique in micellar electrokinetic chromatography (MEKC). Compared to popular electric-field driven stacking techniques in MEKC, such as sweeping, PPME is pressure-driven and can greatly improve peak heights for target analytes. The entire capillary is loaded with the sample and undergoes pressure-driven concentration, leading to effective detection of low levels of analytes in drinking water and natural water samples.
ANALYTICA CHIMICA ACTA
(2022)
Article
Chemistry, Analytical
Xinming Pu, Shu Gan, Xiping Yuan, Raobo Li
Summary: This study combines the advantages of different point cloud acquisition methods to provide high-quality basic data for structure measurement and modeling. By analyzing the mechanisms of different sensors, the integrity of point cloud data, and the single-point geometric characteristics, the advantages and disadvantages of different methods for collecting point clouds of special-shaped structures are compared. Additionally, a point cloud void repair technology based on TLS point cloud is proposed to generate high-quality basic point cloud data of special-shaped structures.
Article
Construction & Building Technology
Guocheng Qin, Yin Zhou, Kaixin Hu, Daguang Han, Chunli Ying
Summary: This paper proposes a fully automatic method for reconstructing parameterized BIM using point clouds to address the problems encountered in industrialized bridge construction. Algorithms for bridge point cloud segmentation and extraction of geometric features are developed to improve the accuracy and reliability of the reconstructed BIM. The feasibility of the proposed method is evaluated and verified using both theoretical and actual bridge point clouds.
ADVANCES IN CIVIL ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Su-Byung Jeon, Byung-Ki Son, Ji-Won Choi, Injoon Son
Summary: This study investigates the effect of hydrophilic-lipophilic balance (HLB) number and cloud point (CP) on degreasing efficiency of secondary-alcohol ethoxylated nonionic surfactant, and finds that the highest degreasing efficiency is observed near the surfactant's cloud point.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Multidisciplinary
Afaq Ullah Khan, Faheem Shah, Rafaqat Ali Khan, Bushra Ismail, Asad Mohammad Khan, Haji Muhammad
Summary: This research focused on preconcentration of rifampicin in water using cloud point extraction (CPE) method, followed by measurement using UV/vis spectrophotometric method. The study successfully applied this procedure for determination of rifampicin in real wastewater samples.
TURKISH JOURNAL OF CHEMISTRY
(2021)
Article
Forestry
Jie Yang, Xiaorong Wen, Qiulai Wang, Jin-Sheng Ye, Yanli Zhang, Yuan Sun
Summary: The research developed a novel algorithm ISTTWN based on geometric characteristics for tree branch skeleton extraction, which improved the accuracy and efficiency of traditional algorithms. The algorithm has potential applications in tree modeling and other fields.
Article
Computer Science, Artificial Intelligence
Wenping Ma, Mingyu Yue, Yue Wu, Yongzhe Yuan, Hao Zhu, Biao Hou, Licheng Jiao
Summary: Feature extraction is crucial for deep-learning-based point cloud registration. Previous work often neglects shallow information, which is important for point cloud registration, as the neural network deepens. Shallow information represents the structure of the point cloud, while deep information represents its semantics. We demonstrate that incorporating shallow information in feature extractors positively impacts point cloud registration, as evidenced by experimental results on the ModelNet40 dataset.
IEEE TRANSACTIONS ON NEURAL NETWORKS AND LEARNING SYSTEMS
(2023)
Article
Computer Science, Artificial Intelligence
Hangkun Wang, Hailiang Ye, Bing Yang, Feilong Cao
Summary: This paper presents a novel network model that adopts a coarse-to-fine point cloud completion strategy. It can adaptively aggregate the latent shape information in local features and generate high-resolution complete point clouds. The experimental results on different datasets verify the excellent performance of the model in point cloud completion task.
KNOWLEDGE-BASED SYSTEMS
(2022)
Article
Chemistry, Multidisciplinary
Xiali Kong, Yonghua Xia, Xuequn Wu, Zhihe Wang, Kaihua Yang, Min Yan, Chen Li, Haoyu Tai
Summary: This article introduces an intelligent identification method for rock discontinuities based on the multi-source fusion of point clouds, combining 3D laser scanning and UAV photogrammetry technology. It effectively solves the problem of data acquisition in complex geological conditions and provides a feasible solution.
APPLIED SCIENCES-BASEL
(2022)
Article
Chemistry, Analytical
O. I. Fedorchuk, S. A. Kulichenko
JOURNAL OF ANALYTICAL CHEMISTRY
(2018)
Article
Chemistry, Analytical
V. O. Doroschuk, I. Yu. Matsenko, Y. S. Mandzyuk, O. G. Makukha, N. O. Grytsyk
JOURNAL OF ANALYTICAL CHEMISTRY
(2019)
Article
Nanoscience & Nanotechnology
Oksana Nadtoka, Pavlo Virych, Tetiana Bezugla, Volodymyr Doroschuk, Sergiy Lelyushok, Vadym Pavlenko, Oleg Yeshchenko, Nataliya Kutsevol
Summary: This study synthesized hydrogels based on D-g-PAA and PAA through radical polymerization for the photochemical synthesis of AgNPs. It was found that the cross-linked D-g-PAA hydrogels showed higher activity against Staphylococcus aureus compared to PAA hydrogels, making them a potential alternative to antibiotic-containing coverings.
APPLIED NANOSCIENCE
(2022)
Article
Polymer Science
Pavlo Virych, Oksana Nadtoka, Volodymyr Doroschuk, Sergey Lelyushok, Vasyl Chumachenko, Tetiana Bezugla, Nataliya Kutsevol
Summary: This study synthesized hydrogels loaded with cefuroxime and investigated the antibiotic release rate and antibacterial activity of different materials, confirming the potential application of antimicrobial hydrogels in treating infected wounds.
INTERNATIONAL JOURNAL OF POLYMER SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Viktoriia Klovak, Sergey Kulichenko, Serhii Lelyushok
Summary: The study found that charge matching plays an important role in the interaction between ionic surfactants and reagents, enhancing the analytical signal of the surfactants. Additionally, hydrophobic binding between oppositely charged reagent particles and surfactants can further enhance the effect of charge matching, while the detection effect is not significant for reagents with weak solvatochromic properties.
JOURNAL OF CHEMICAL SCIENCES
(2021)
Article
Chemistry, Analytical
Viktoriia Klovak, Sergey Kulichenko, Serhii Lelyushok
Summary: This study investigates the influence of cationic and anionic surfactants on the fluorescence spectra of charged reagents in aqueous solutions of nonionic surfactant Triton X-100. It is found that the fluorescence intensity increases and the fluorescence maximum position shifts with increasing hydrophobicity, and the analytical signal is amplified when the surfactant matches the charge values of the reagent and counterion. The effects observed are significant in the design of fluorescent systems for studying surfactant micelles and have been tested in detecting ionic surfactants in pharmaceuticals.
METHODS AND OBJECTS OF CHEMICAL ANALYSIS
(2021)
Article
Chemistry, Multidisciplinary
Viktoriia Klovak, Sergey Kulichenko, Serhii Lelyushok
Summary: The study investigates the influence of charge, hydrophobicity, and spatial characteristics on the analytical signal of cationic and anionic surfactants in their association with fluorescent reagents in aqueous solutions. The results show that the contribution of electrostatic interactions, hydrophobic matching, and spatial matching play a significant role in determining the surfactant analytical signal. The effects observed lead to the design of an analytical system for the determination of sodium dodecyl sulfate with a fluorescent reagent.
Article
Chemistry, Multidisciplinary
Viktoriia Klovak, Sergey Kulichenko, Serhii Lelyushok
Summary: The study focuses on the statistical characteristics of the dependence of fluorescence signal on integral parameters of fluorescent reagents and cationic surfactants in aqueous solutions. It demonstrates the significance of electrostatic attraction and hydrophobicity in the stability and fluorescence signal of the associated compounds. The findings provide insights for designing analytical systems for large cation determination using fluorescence methods.
AUSTRALIAN JOURNAL OF CHEMISTRY
(2021)
Article
Chemistry, Analytical
S. O. Lelyushok, V. O. Doroschuk, S. A. Kulichenko
METHODS AND OBJECTS OF CHEMICAL ANALYSIS
(2020)
Article
Chemistry, Analytical
V. O. Doroschuk, V. Ye Sabko, O. Ivashko, L. O. Popova, A. S. Shalamay
METHODS AND OBJECTS OF CHEMICAL ANALYSIS
(2020)
Article
Chemistry, Multidisciplinary
Viktoriia Klovak, Sergey Kulichenko, Serhii Lelyushok
Article
Chemistry, Multidisciplinary
Oksana G. Makukha, Lilia A. Ivashchenko, Olga A. Zaporozhets, Volodymyr O. Doroschuk
Article
Chemistry, Multidisciplinary
Viktoriia Starova, Sergey Kulichenko
CHEMISTRY & CHEMICAL TECHNOLOGY
(2018)
Article
Chemistry, Analytical
V. O. Doroschuk, T. Kyrychuk, V. M. Levchyk
METHODS AND OBJECTS OF CHEMICAL ANALYSIS
(2018)
