Article
Polymer Science
Alexander Bunge, Teodora Radu, Gheorghe Borodi, Sanda Boca, Alexandrina Nan
Summary: This article investigates the application of poly(tartaric acid) in the synthesis of nanoparticles. Poly(tartaric acid) acts as both a reductant and a coating agent, enabling the green synthesis of various types of nanoparticles. The resulting particles exhibit different sizes and coatings, with improved dispersibility and potential for further functionalization.
Article
Chemistry, Physical
T. Parvathy, P. P. Pradyumnan
Summary: Doping nickel in Cu2Se can modify its thermoelectric properties, increasing the carrier mobility and concentration while reducing the thermal conductivity, resulting in significant improvement in thermoelectric performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2024)
Article
Engineering, Environmental
Qian Ye, Hao Xu, Qingguo Wang, Xiaowei Huo, Yunqi Wang, Xue Huang, Guanyu Zhou, Jinfeng Lu, Jing Zhang
Summary: This study systematically revealed the specific roles of tartaric acid (TA) as an eco-friendly ligand in homogeneous and heterogeneous copper-catalyzed systems, proposing new mechanisms for enhancing Fenton-like processes. The results showed that hydroxyl radicals (•OH) were responsible for the decomposition of TA and metronidazole (MNZ) in the system. The use of ESR technique helped detect various radicals contributing to the acceleration of the Cu2+/Cu+ redox cycle.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
S. T. Yussuf, K. V. Mokwebo, K. C. Januarie, M. Oranzie, E. I. Iwuoha
Summary: Recently, kesterite (CZTS) has been considered as a promising alternative material for low-cost thin film solar cells due to its high absorption coefficient, direct band gap, natural abundance, and low toxicity. However, the efficiency of CZTS solar cells is still relatively low compared to silicon, which hinders its commercialization. Therefore, developing new materials with improved optical and photovoltaic properties is encouraged.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Chemistry, Physical
Farheen F. Jaldurgam, Zubair Ahmad, Farid Touati, Abdulla Al Ashraf, Abdul Shakoor, Jolly J. Bhadra, Noora Al-Thani, Talal Altahtamouni
Summary: Our current work aims to enhance the thermoelectric properties of p-type copper selenide by a low-cost, simple and fast microwave-assisted metallurgy route. The results indicate exceptional electrical, thermal, and mechanical properties for samples annealed at 375 ? with high room temperature electrical conductivity and ultra-low thermal conductivity.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Nanoscience & Nanotechnology
Xue-Meng Wang, Shaoshan Pan, Lin Chen, Li Wang, Yi-Tao Dai, Tianzhi Luo, Wen-Wei Li
Summary: This study reports the first use of biogenic nanomaterials for near-infrared (NIR) photothermal therapy (PTT). Copper selenide nanoparticles synthesized by Shewanella oneidensis MR-1 showed high photothermal conversion efficiency and good biocompatibility, leading to efficient tumor ablation in mice without damaging normal tissues.
ACS APPLIED MATERIALS & INTERFACES
(2023)
Article
Energy & Fuels
Shuya Chen, Kunzhi Xie, Yanping Shi, Zishuo Li, Xianyu Yang, Jihua Cai
Summary: The low permeability of coalbed methane (CBM) reservoirs is attributed to cementing minerals, which block the flow of water and gas in the pores and fractures. Acid stimulation is a promising method to improve coal permeability by dissolving these inorganic minerals. Laboratory experiments investigated the interactions between various acids and coal samples, leading to the optimization of a compound acid system that greatly enhanced CBM recovery by increasing coal porosity and permeability.
JOURNAL OF PETROLEUM SCIENCE AND ENGINEERING
(2021)
Article
Chemistry, Multidisciplinary
Zhi Long, Yajun Wang, Xiaoling Sun, Yitong Li, Zhiwei Zeng, Lin Zhang, Hongyi Chen
Summary: By doping S and Te, the electronic band structure of the second phase is adjusted, resulting in high carrier mobility and power factor in Cu2Se-based composite materials. The dispersed second-phase Cu2Se0.88S0.06Te0.06, dislocations, and nanograins were observed, leading to a substantial reduction in the thermal conductivity. High figure of merit (zT) values of 2.04 (by Dulong-Petit heat capacity) and 2.34 (by Differential Scanning Calorimetry (DSC) measured heat capacity) were achieved at 850 K, which are 65% higher than that of Cu2Se in this work and comparable to the recently reported p-type Cu2Se with outstanding performance.
ADVANCED MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Momna Rasheed, Farhat Saira, Zahida Batool, Hasan M. Khan, Junaid Yaseen, Muhammad Arshad, Ambreen Kalsoom, Hafiz Ejaz Ahmed, Muhammad Naeem Ashiq
Summary: CuSe/PVP nanocomposite was synthesized by a facile one pot sol gel method and characterized by various techniques. The electrochemical behavior of the nanocomposite was analyzed using cyclic voltammetry, electrochemical impendence, and chronoamperometry. CuSe/PVP showed high sensitivity, lower response time, wide linear range, and low cost for glucose monitoring.
Article
Materials Science, Multidisciplinary
Muhammad Saqib, Nasir Rahman, Kashif Safeen, Saleh D. Mekkey, Mohamed A. Salem, Akif Safeen, Mudasser Husain, Shams u Zaman, Sherzod Abdullaev, Azra Kalsoom, Zeinhom M. El-Bahy, Rajwali Khan
Summary: The authors propose a method to enhance the photodegradation properties of TiO2 nanoparticles by doping them with cobalt and sulfur. The doped TiO2 nanoparticles show significantly improved photoactivity compared to pure TiO2. The study explores the physical mechanisms behind this enhancement and demonstrates the potential for large-scale nanoparticle production for industrial applications.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2023)
Article
Chemistry, Multidisciplinary
Min Ge, Haiyan Guo, Ming Zong, Zhixin Chen, Zhuang Liu, Han Lin, Jianlin Shi
Summary: This study demonstrates the potential of surface chemical engineering to broaden the band gap of 2D germanene, enabling it to be used as a novel inorganic photosensitizer for singlet oxygen photodynamic therapy. The H-germanene nanosheets show a substantially enlarged band gap and favorable biodegradability, indicating their potential in cancer treatment.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Engineering, Electrical & Electronic
Shashikanth Hathwara, B. Lalitha Devi, D. Ramananda
Summary: ZnS nanoparticles were synthesized using a wet chemical method with microwave irradiation, and a copolymer as capping agent. The capped ZnS samples showed a smaller band gap value compared to uncapped ZnS, indicating better performance.
JOURNAL OF ELECTRONIC MATERIALS
(2021)
Article
Engineering, Chemical
Zohra Nazir Kayani, Hadia Aslam
Summary: Vanadium doped Copper oxide thin films were prepared and studied for their properties. XRD spectra showed dual-phase of copper oxide, Tauc's relation was used to probe the optical band gap, and dielectric constant measurements revealed an increase in AC conductivity of the films.
ADVANCED POWDER TECHNOLOGY
(2021)
Article
Chemistry, Physical
Jaehwan Lee, Kyoungah Cho, Taeho Park, Sangsig Kim
Summary: In this study, a spin-coated Cu2Se nanoparticle thin film on a plastic substrate was fabricated and the effects of low-temperature annealing on its thermoelectric characteristics were investigated. The results showed that the electrical conductivity of the film was dramatically enhanced after annealing, while the thermal conductivity slightly increased.
CHEMICAL PHYSICS LETTERS
(2022)
Article
Engineering, Environmental
Xue-Meng Wang, Liang Huang, Yun-Jie Wang, Liang Xuan, Wen-Wei Li, Li-Jiao Tian
Summary: Low-cost photothermal antibacterial membranes were fabricated using biogenic copper selenide nanoparticles, improving membrane antibacterial properties and water flux.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
A. Arlina, S. A. Halim, M. M. Awang Kechik, S. K. Chen
JOURNAL OF ALLOYS AND COMPOUNDS
(2015)
Article
Engineering, Electrical & Electronic
R. M. Zahari, A. H. Shaari, Z. Abbas, H. Baqiah, S. K. Chen, K. P. Lim, M. M. Awang Kechik
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2017)
Article
Materials Science, Multidisciplinary
K. P. Lim, S. W. Ng, L. N. Lau, M. M. Awang Kechik, S. K. Chen, S. A. Halim
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2019)
Article
Crystallography
Nurhidayah Mohd Hapipi, Jee Khan Lim, Soo Kien Chen, Oon Jew Lee, Abdul Halim Shaari, Mohd Mustafa Awang Kechik, Kean Pah Lim, Kar Ban Tan, Masato Murakami, Muralidhar Miryala
Article
Engineering, Electrical & Electronic
Ibrahim Garba Shitu, Zainal Abidin Talib, Josephine Ying Chyi Liew, Mohd Mustapha Awang Kechick, Hussein Baqiah, Han Kee Lee, Aminu Muhammad
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2020)
Article
Chemistry, Multidisciplinary
Siti Aisyah Abdul Wahab, Khamirul Amin Matori, Mohd Hafiz Mohd Zaid, Mohd Mustafa Awang Kechik, Sidek Hj Ab Aziz, Rosnita A. Talib, Aisyah Zakiah Khirel Azman, Rahayu Emilia Mohamed Khaidir, Mohammad Zulhasif Ahmad Khiri, Nuraidayani Effendy
APPLIED SCIENCES-BASEL
(2020)
Article
Engineering, Electrical & Electronic
Nurul Auni Khalid, Mohd Mustafa Awang Kechik, Nur Atikah Baharuddin, Chen Soo Kien, Hussein Baqiah, Lim Kean Pah, Abdul Halim Shaari, Zainal Abidin Talib, Azhan Hashim, Masato Murakami, Muralidhar Miryala
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2020)
Article
Materials Science, Multidisciplinary
Lik Nguong Lau, Kean Pah Lim, Amirah Natasha Ishak, Mohd Mustafa Awang Kechik, Soo Kien Chen, Noor Baa'yah Ibrahim, Muralidhar Miryala, Masato Murakami, Abdul Halim Shaari
Summary: The study showed that sol-gel-synthesized Nd0.7Sr0.3MnO3 (NSMO) exhibited single crystallite grains and intriguing magnetic and electrical transport behaviors. Magnetic and electrical properties were found to be influenced by factors such as grain size and distribution, as well as crystallite formation.
Article
Materials Science, Multidisciplinary
Aliah Nursyahirah Kamarudin, Mohd Mustafa Awang Kechik, Muralidhar Miryala, Sunsanee Pinmangkorn, Masato Murakami, Soo Kien Chen, Hussein Baqiah, Aima Ramli, Kean Pah Lim, Abdul Halim Shaari
Summary: The study investigated the infiltration growth of Y123 superconductors using liquid phase source at different ratios to control the Y211 secondary phase content, resulting in improved critical current density. The optimized liquid phase content led to the formation of smaller-sized and uniformly distributed Y211 particles, acting as effective pinning centers, consequently enhancing the superconducting properties of the Y123 samples. The binary mixture of rare earth superconductors in the liquid phase showed potential for further improving the superconducting properties of Y123 single grains.
Article
Chemistry, Physical
Oluwatobi Akomolafe, Taoreed O. Owolabi, Mohd Amiruddin Abd Rahman, Mohd Mustafa Awang Kechik, Mohd Najib Mohd Yasin, Miloud Souiyah
Summary: This study explores the interplay between structural transformation, magnetic ordering, and superconductivity in 122-iron-based superconducting materials, highlighting the vital role of electron and hole doping in enhancing the superconducting critical temperature. Using a hybridization of SVR algorithm and PS parameter optimization method, the developed PS-SVR-RAD model outperforms the PS-SVR-LAT model with better performance in predicting the critical transition temperature of the superconductor. The utilization of ionic radii and dopant concentrations as descriptors enables the PS-SVR-RAD model to provide quick and precise determination of the critical transition temperature at a relatively low cost, offering significant advantages over the traditional lattice parameter-based modeling approach.
Article
Materials Science, Multidisciplinary
Lik Nguong Lau, Kean Pah Lim, See Yee Chok, Amirah Natasha Ishak, Xiao Tong Hon, Yan Jing Wong, Mohd Mustafa Awang Kechik, Soo Kien Chen, Noor Baa'yah Ibrahim, Muralidhar Miryala, Masato Murakami, Abdul Halim Shaari
Summary: Incorporating the secondary oxide phase into the manganite composite enhances low-field magnetoresistance (LFMR), but leads to a slight reduction in LFMR as temperature decreases. The NiO nanoparticles act as a barrier to charge transport, causing an increase in resistivity for composite samples.
Article
Medicine, General & Internal
Mardhiyati Mohd Yunus, Ahmad Khairuddin Mohamed Yusof, Muhd Zaidi Ab Rahman, Xue Jing Koh, Akmal Sabarudin, Puteri N. E. Nohuddin, Kwan Hoong Ng, Mohd Mustafa Awang Kechik, Muhammad Khalis Abdul Karim
Summary: This study aimed to evaluate the performance of automated machine learning models in classifying atherosclerotic plaques using radiomic features extracted from coronary computed tomography angiography (CCTA) images. The results showed that Model 1 based on first-order features performed well in classifying different types of plaques, while Model 2 based on second-order features was useful in classifying non-calcified plaques. However, Model 3 based on shape features did not contribute to plaque classification.
Article
Medicine, General & Internal
Zarina Ramli, Muhammad Khalis Abdul Karim, Nuraidayani Effendy, Mohd Amiruddin Abd Rahman, Mohd Mustafa Awang Kechik, Mohamad Johari Ibahim, Nurin Syazwina Mohd Haniff
Summary: This research evaluated the robustness of semi-automatic segmentation using a flood-fill algorithm for quantitative feature extraction in cervical cancer patients. The results showed that the features extracted from the semi-automatic segmentation were more stable and reproducible.
Article
Materials Science, Multidisciplinary
Yan Jing Wong, Lik Nguong Lau, Kean Pah Lim, Xiao Tong Hon, Nur Amira Azira Daud, Mohd Mustafa Awang Kechik, Soo Kien Chen, Muhammad Kashfi Bin Shabdin, Abdul Halim Shaari, Muralidhar Miryala
Summary: This study reports on a revisited investigation of perovskite-based manganite La0.67Sr0.33MnO3 (LSMO) deposited onto corning-glass (CG) substrates. LSMO films with thicknesses ranging from 35.0-109.7 nm were fabricated using RF sputtering with different deposition times. The films exhibited hexagonal structures with an unmodified R-3c (167) space group. AFM images revealed clusters of monolayer growth. The optical band gap (Eg) showed a direct variation with deposition time, while the resistivity graphs were fitted using the percolation model to understand the electrical transport.
Article
Materials Science, Multidisciplinary
Zhiqiang Li, Xiaoxiao Hu, Zhao-Yun Zeng, Yajiang Chen, Ai-Xi Chen, Xiaobing Luo
Summary: This work demonstrates how the current phase transition of atomic Bose-Einstein condensates in a trap can be controlled by applying an oscillatory driving field. The self-trapping effect in momentum space allows for a suppression of oscillations and a nearly constant directed current. Mean-field chaos serves as an indicator of the quantum phase transition. These findings are supported by an effective three-mode model.
RESULTS IN PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Jinqin Ye, Yi Li, Jun Ding, Heng Yu, Xianqi Dai
Summary: Constructing van der Waals heterostructures is an efficient approach to enhance the properties and broaden the applications of two-dimensional materials. This study explores the structure, stability, electronic, and optical properties of BlueP/MoSSe heterostructures using density functional theory calculations. It is found that the bandgap and band edge of these heterostructures can be effectively modulated by strain and electric field.
RESULTS IN PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Simone Anzellini, Silvia Boccato, Samuel R. Baty, Leonid Burakovsky, Daniele Antonangeli, Daniel Errandonea, Raffaella Torchio
Summary: The melting line of cobalt was investigated through experimental and theoretical methods, revealing a phase transition from hexagonal close-packed structure to face-centered cubic structure at high temperatures. The melting temperatures obtained from both methods showed good agreement and can be described by a Simon-Glatzel equation. Additionally, a thermal equation of state for the face-centered cubic phase of cobalt was determined.
RESULTS IN PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Jiajuan Qing, Shisheng Zhou, Jimei Wu, Mingyue Shao
Summary: This paper investigates the nonlinear chaotic vibrations of fractional viscoelastic PET membranes subjected to combined harmonic and variable axial loads. The viscoelasticity of PET membrane is characterized by the fractional Kelvin-Voigt model. The reliability of the numerical strategy is proved by comparing the results with available fractional systems and examples. The influence of system parameters on chaotic behaviors is described using bifurcation diagrams and detailed responses. This research provides a fundamental framework for controlling viscoelastic substrates in flexible manufacturing.
RESULTS IN PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Aly R. Seadawy, Syed T. R. Rizvi, Bazgha Mustafa, Kashif Ali
Summary: In this research, the complete discriminant system of polynomial method is used to analyze the dynamic characteristics of the cubic-quintic nonlinear Schrodinger equation with an additional anti-cubic nonlinear term, with a focus on the introduction of various optical solitons and wave structures. The analysis illustrates the importance of the polynomial method and provides dynamic results for the solutions.
RESULTS IN PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Ruihang Huang
Summary: This study utilized bibliometric analysis to examine the development of multi-scale calculation of carbon nanotubes. Using CiteSpace III software, 1253 relevant articles from the SCI Expanded database were analyzed to identify research trends in this field. The findings revealed significant progress in the research of multi-scale calculation of carbon nanotubes from 1999 to 2023. The analysis of keywords, literature co-citation network, and keyword cluster network provided valuable insights into the knowledge base, important research results, and research hotspots in this field. Additionally, the study predicted future hot research directions using keyword breakout analysis. The research provides profound insights and important guidance for researchers and policymakers in the field of multi-scale calculation of carbon nanotubes to promote further innovation and development.
RESULTS IN PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Xiaohua Zhou, Erhu Zhang, Shumin Zhao, Lei Zhang
Summary: A theoretic model is proposed to study the adhesion behavior of a vesicle adhering inside another vesicle in 2-D case. The model investigates the equilibrium shape equations and boundary conditions, and reveals the phase diagram and critical adhesion condition in different situations.
RESULTS IN PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Xin Yi, Jia-Cheng Huo, Yong-Pan Gao, Ling Fan, Ru Zhang, Cong Cao
Summary: The paper introduces an iterative quantum algorithm based on quantum gradient descent to solve combinatorial optimization problems, verifying the effectiveness and robustness of the algorithm through numerical simulations and comparison with other algorithms. Experimental results on a real quantum computer also demonstrate the feasibility and performance of the algorithm.
RESULTS IN PHYSICS
(2024)