Article
Chemistry, Multidisciplinary
Bin Jiang, Xin Li, Bozhi Yang, Shujie Yang, Xinyi Chen, Junhong Chen, Minghao Fang, Zhaohui Huang, Xin Min, Xiaozhi Hu
Summary: The occurrence of fractures is a common injury, and bone reconstruction surgery often uses porous hydroxyapatite materials. This study investigates the formation of apatite crystals within the internal microstructures of the bone implants and reveals differences in properties compared to surface-formed crystals. The findings provide insights into the temporal evolution of biomineralization processes and can contribute to the development of biomimetic implants for tissue engineering applications.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Multidisciplinary
Atef Dridi, Khira Zlaoui Riahi, Saida Somrani
Summary: The study focuses on the mechanism of bone-like apatite formation on two poorly crystalline apatite (PCA) samples in simulated body fluid. Experimental and theoretical data revealed a three-stage process of apatite formation, with the immature specimen undergoing a fast precipitation of positively Ca-rich amorphous phase in the prenucleation stage. This research provides insights into the bioactive behavior of biomaterials containing biomimetic PCA phases for tissue engineering.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Materials Science, Ceramics
Toshiki Miyazaki, Yosuke Sudo
Summary: This study investigates apatite formation on surface-modified Hf metal in simulated body fluid. The results show that Hf samples soaked in NH4F solution have the highest apatite-forming ability, and the porous structure plays a dominant role in apatite formation. Furthermore, there is little correlation between surface energy and apatite formation.
JOURNAL OF ASIAN CERAMIC SOCIETIES
(2022)
Article
Chemistry, Physical
Awatef Abidi, Zahra Jokar, Seyedmahmoodreza Allahyari, Fereshteh Kolahi Sadigh, S. Mohammad Sajadi, Payam Firouzi, Dumitru Baleanu, Ferial Ghaemi, Arash Karimipour
Summary: This study investigated the heat transfer properties of Zinc Oxide nanofluid in Simulated-Body-Fluid, and found that adding Hydroxyapatite and Carbon Nanotube can enhance heat transfer performance. Computational methods can be used to optimize heat transfer measurements of nanofluids for cost reduction.
JOURNAL OF MOLECULAR LIQUIDS
(2021)
Article
Thermodynamics
Qian Ding, Hao Fu, Chaoran Hua, Xinman Jiang, Jia Yu, Keming Zhu
Summary: This study investigates the crystallization behavior, melting characteristics, and semicrystalline morphologies of wollastonite-filled recycled polypropylene (R-PP) composites with and without beta-nucleating agent. The addition of beta-nucleating agent can significantly increase the beta-phase content in wollastonite-filled R-PP composites, providing an effective method for achieving high value-added and low-cost recycling of R-PP.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2021)
Article
Materials Science, Multidisciplinary
Zafer Tatli, Oana Bretcanu, Fatih Caliskan, Kenny Dalgarno
Summary: The aim of this study was to produce porous apatite-wollastonite (AW) glass-ceramic scaffolds via a two-step sintering process and assess their suitability for bone replacement applications. The scaffolds containing 70% AW and 30% PMMA exhibited the highest compressive strength and apparent density.
MATERIALS TODAY COMMUNICATIONS
(2022)
Article
Materials Science, Multidisciplinary
Berit Zeller-Plumhoff, Melissa Gile, Melissa Priebe, Hanna Slominska, Benjamin Boll, Bjoern Wiese, Tim Wuerger, Regine Willumeit-Roemer, Robert Horst Meissner
Summary: The study examined the degradation of pure magnesium wire in simulated body fluid under physiological conditions and predicted the degradation rate based on the medium's ionic composition. A non-linear relationship was discovered between degradation rate and the precipitation of calcium salts, with a mean absolute error of 1.35 mm/yr in predicting the degradation rate. This relatively high value suggests that ionic interactions are complex or that an unknown parameter influencing degradation may be present.
Article
Construction & Building Technology
Rakibul I. Khan, Muhammad Intesarul Haque, Salman Siddique, Eric N. Landis, Warda Ashraf
Summary: This article investigates the effects of amino acids on the moisture susceptibility, nanomechanical properties, and fracture properties of carbonated wollastonite composites. The addition of amino acids in a CO2-rich environment resulted in the formation of amorphous calcium carbonate (ACC), vaterite, and aragonite, instead of calcite. Various analytical techniques were used for microstructural analysis and it was observed that the chain lengths of the amino acids influenced the formation of crystal phases. The addition of amino acids reduced carbonation reaction and improved fracture properties by 156%, enhancing the nanomechanical properties of the carbonated system.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Crystallography
Andualem Belachew Workie, Henni Setia Ningsih, Wen-Ling Yeh, Shao-Ju Shih
Summary: This study successfully synthesized apatite-wollastonite glass ceramics using a spray pyrolysis method and investigated their properties. The 1100°C sintered sample exhibited the highest bioactivity and cell proliferation capability, as indicated by various tests.
Article
Materials Science, Paper & Wood
Ali Hassanpoor Tichi, Hadi Gholamiyan
Summary: This study investigated the effect of wollastonite on the properties of composites made of sesame stem and gypsum. The results showed that adding wollastonite improved the physical and mechanical properties of the boards. The addition of 10% wollastonite was recommended to enhance the fire retardancy of the boards.
Article
Materials Science, Ceramics
Toshiki Miyazaki, Satoshi Imanaka, Jun Akaike
Summary: The study demonstrates that titania with different valences exhibit varying abilities to form apatite in simulated body fluid, with all samples forming apatite after treatment with NaOH solution. The surface electrical states of TiO and Ti2O3 are strongly influenced by their bulk conductivity, leading to poor apatite-forming ability.
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
(2021)
Article
Chemistry, Multidisciplinary
Hiroki Miyajima, Hiroki Touji, Kazutoshi Iijima
Summary: Bone-like hydroxyapatite (HAp) was prepared from 1.5SBF with different pH values, resulting in micro-sized particles with higher Ca/P ratio and crystallinity at pH 7.4, and nano-sized particles at pH 8.0 and 8.4. A mixture of micro-sized and nano-sized particles was obtained at pH 7.7. Monitoring Ca2+ concentrations showed a drastic decrease at pH 7.4, slightly decreased at higher pH, and higher at pH 7.7. The cytotoxicity of the obtained precipitates to mesenchymal stem cells was lower than that of synthetic HAp.
Article
Construction & Building Technology
Chinedu A. Ajoku, Anaclet Turatsinze, Ariane Abou-Chakra
Summary: Calcium phosphate cement is a room-temperature hardening inorganic cement with low fracture behavior. By incorporating recycled rubber aggregates and corrosion-resistant fibers into the cement matrix, high-strength composites with improved strain capacities can be produced. The addition of inert inclusions improves the fracture properties of the plain cement.
CONSTRUCTION AND BUILDING MATERIALS
(2023)
Article
Mechanics
Jianbin Qin, Tianwei Wang, Jin Yun, Borui Guo, Xuetao Shi, Guangcheng Zhang
Summary: The response and adaptability of shear thickening fluid (STF) and STF-treated Kevlar fabric (STKF) to temperature variations were studied. It was found that STKF showed enhanced stab resistant performance and burst strength in cold environments, making it suitable for protective armor design for cold environments.
COMPOSITE STRUCTURES
(2021)
Article
Materials Science, Multidisciplinary
Gehan T. El-Bassyouni, Amira M. El-Rafei, Moenis A. Azooz, Sayed H. Kenawy, Hussein Darwish, Esmat M. A. Hamzawy
Summary: Calcium silicate/calcium hexaboride composites were prepared using the wet precipitation chemical method. After heat treatment, high quartz, calcium silicate, and calcium hexaboride were detected as phases. When soaked in SBF, the samples showed the formation of nano-sized calcium phosphate particles. The analysis confirmed the biocompatibility of the prepared composites.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Engineering, Chemical
Chandrakant R. Sonawane, Kuldeep Tolia, Anand Pandey, Atul Kulkarni, Hitesh Punchal, Kishor Kumar Sadasivuni, Anil Kumar, Mohammad Khalid
Summary: In this paper, a numerical investigation and evaluation of the thermal characteristics of a closed-loop pulsating heat pipe are performed. The volume of fluid method is used to simulate the two-phase flow inside the heat pipe, and the numerical results are compared and validated with experimental data. The study concludes that a filling ratio of 65% is the optimized charge quality for the current configuration of the pulsating heat pipe.
CHEMICAL ENGINEERING COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
M. S. Sajna, John-John Cabibihan, Rayaz A. Malik, Kishor Kumar Sadasivuni, Mithra Geetha, Johaina Khalid Alahmad, Dima Anwar Hijazi, Fatimatulzahraa Alsaedi
Summary: The importance of detecting biochemical performance and health parameters using wearable sensors has increased. A lactic acid (LA) sensor was developed using a simple method for electrochemical detection in artificial sweat. The non-enzymatic LA sensing characteristics were evaluated using cyclic voltammetry and amperometry response with a three-electrode system. CuO nanoparticles were applied to a glassy carbon electrode (GCE) as a single-step modification using the Nafion matrix. Fourier transform infrared spectroscopy (FTIR), ultraviolet-visible spectroscopy (UV-Visible), and X-ray powder diffraction (XRD) were used to examine the CuO material used for modifying the glassy carbon electrode. The minimum detectable concentration for lactic acid was found to be 0.05 x 103 mol/l. This investigation provides an excellent approach for the specific detection of LA biomolecules for medical purposes through a non-enzymatic method.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Microbiology
Alina Kudinova, Alexander Grishin, Tatiana Grunina, Maria Poponova, Inna Bulygina, Maria Gromova, Rajan Choudhary, Fedor Senatov, Anna Karyagina
Summary: In this study, lysostaphin was loaded on diopside powder and tested for its antimicrobial and antibiofilm properties. The results showed that lysostaphin released from diopside powder exhibited strong antibacterial activity against planktonic bacteria and effectively destroyed staphylococcal biofilms. This suggests that diopside-based materials have potential for the development of antibacterial bone grafting materials.
Article
Chemistry, Applied
S. Samreen, Deepak Devadiga, B. M. Samrudhi, T. N. Ahipa, Kishor Kumar Sadasivuni
Summary: In this study, four new cyanopyridone derivatives with terminal long chain alkyloxy substituents were designed and synthesized. The synthesized compounds were characterized by IR, NMR, and Mass spectrometry, and their optical properties were examined in solution state. The compounds exhibited blue emissive behavior in solution state and yellow fluorescence in solid state. Moreover, one of the compounds showed intriguing fluorescence properties under applied mechanochromic stimuli. A simple grinding-fuming process confirmed the morphological changes and enhanced the emission property of the studied compound.
Article
Biochemical Research Methods
Mithra Geetha, Kishor Kumar Sadasivuni, Maryam Al-Ejji, Nandagopal Sivadas, Bagmita Bhattacharyya, Farzana N. Musthafa, Sarya Alfarwati, Tamanna Jannat Promi, Sumayya Ali Ahmad, Sara Alabed, Dima Anwar Hijazi, Fatimatulzahraa Alsaedi, Faozia Nasser Al-Shaibah
Summary: Simple, portable, and low-cost paper-based sensors have the potential to replace high-cost sensing technologies. These sensors can be used in clinical diagnosis, environmental monitoring, and food quality monitoring. A novel and highly sensitive paper-based sensor has been designed for the selective detection of Cu2+ ions, with a detection limit of 2.23 ppm and high selectivity over other metal cations.
JOURNAL OF FLUORESCENCE
(2023)
Article
Chemistry, Analytical
Ahmad Yaser Alhaddad, Hussein Aly, Hoda Gad, Einas Elgassim, Ibrahim Mohammed, Khaled Baagar, Abdulaziz Al-Ali, Kishor Kumar Sadasivuni, John-John Cabibihan, Rayaz A. Malik
Summary: Glucose monitoring is crucial for managing diabetes effectively. Non-invasive continuous glucose monitoring techniques have advanced to replace finger prick testing, and physiological variables like heart rate and pulse pressure can be used to predict hypoglycemia. This study investigates the relationship between physiological variables collected from wearables and glucose levels, providing insights, challenges, and recommendations for data capture validity.
Article
Chemistry, Analytical
Mizaj Shabil Sha, Surya Devarajan, Farzana N. Musthafa, Nahla O. Eltai, Swathi Ippili, Venkatraju Jella, Soon-Gil Yoon, Hamad Al-Lohedan, R. Jothi Ramalingam, Kishor Kumar Sadasivuni
Summary: In recent years, there has been growing awareness of antibacterial properties and their commercial opportunities in the medical field. This study presents the fabrication and characterization of a ternary composite, reduced graphene oxide-carbon nanotubes-zirconium oxide (rGO-CNT-ZrO2), and investigates its potential applications for antimicrobial activity, catalytic degradation of dyes, and UV sensing. The nanocomposites were synthesized via the hydrothermal method and characterized using various techniques. The findings suggest that the developed composite exhibits excellent antimicrobial properties, making it promising for the pharmaceutical and medical industries.
INTERNATIONAL JOURNAL OF ENVIRONMENTAL ANALYTICAL CHEMISTRY
(2023)
Article
Environmental Sciences
Haseena Onthath, Mostafa H. Sliem, Mithra Geetha, Kishor Kumar Sadasivuni, Aboubakr M. Abdullah, Bijandra Kumar
Summary: Electrochemical conversion of CO2 using a novel CuO nanocomposite has shown great potential in effectively reducing CO2 into useful fuels. The nanocomposite demonstrates high structural stability and durability, indicating its suitability for CO2 reduction.
JOURNAL OF ENVIRONMENTAL MANAGEMENT
(2023)
Article
Biochemistry & Molecular Biology
Raveendra Melavanki, Raviraj Kusanur, Kalpana Sharma, Kishor Kumar Sadasivuni, V. V. Koppal, N. R. Patil
Summary: The present study reports the use of spectroscopic techniques to analyze pyridine derivatives, specifically pyridine-based chalones. The solvatochromic behavior of 3DPP in different solvents, both polar and non-polar, was experimentally investigated. The compound's photophysical properties in various solvents were attributed to intra-molecular charge transfer interactions. The study also involved theoretical and experimental estimation of the dipole moment of 3DPP using solvatochromic methods, and observed a bathochromic shift in the emission spectra confirming the pi ->pi* transition. Fluorescence quenching of 3DPP and its mechanism were studied, as well as the energy transfer between 3DPP and metal ions using FRET theory.
PHOTOCHEMICAL & PHOTOBIOLOGICAL SCIENCES
(2023)
Article
Multidisciplinary Sciences
Godlaveeti Sreenivasa Kumar, Mizaj Shabil Sha, Swathi Yempally, John-John Cabibihan, Kishor Kumar Sadasivuni
Summary: This study presents a methodology for statistically forecasting the time-dependent progression of photoreactions using widely available LEDs, closing the research gap in the analysis of photochemical reactions. The effects of NiS/ZnO additive in perovskite solar cells on forecasting the wavelength of LEDs were carefully investigated using various characterization methods. The photocatalytic activity, as well as factors like selectivity, stability, and sensitivity, were analyzed.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Multidisciplinary
Dania Adila Ahmad Ruzaidi, Muni Raj Maurya, Swathi Yempally, Sajeel Abdul Gafoor, Mithra Geetha, Nazreen Che Roslan, John-John Cabibihan, Kishor Kumar Sadasivuni, Mohd Muzamir Mahat
Summary: The field of strain sensing involves measuring an electrical response that corresponds to strain. Integrating synthetic and conducting polymers can create flexible strain sensors for various applications, but insulating synthetic polymers may reduce sensor sensitivity. This study investigates the effects of secondary doping on PEDOT:PSS/PVA polymer blend thin films as strain sensors, revealing improvements in conductivity and sensitivity.
Proceedings Paper
Polymer Science
Mithra Geetha, Gayathri Geetha Nair, Kishor Kumar Sadasivuni, Somaya Al-maadeed, Asan G. A. Muthalif
Summary: A promising approach for noninvasive medical diagnosis is to measure the VOCs produced by metabolic changes or pathological disorders in human sweat. The detection of acetone in sweat can serve as an indicator for ketosis and diabetes. Currently, the focus of research is to develop accurate, sensitive, and stable noninvasive methods for detecting acetone. The use of carbon nanotubes-copper oxide nanocomposite improves electron transport to the electrode surface.
MACROMOLECULAR SYMPOSIA
(2023)
Proceedings Paper
Polymer Science
Vinotha Krishnasamy, Gayathri Geetha Nair, Mizaj Shabil Sha, Karthik Kannan, Somaya Al-maadeed, Asan G. A. Muthalif, Kishor Kumar Sadasivuni
Summary: Dopamine plays a crucial role in the central nervous system, making it essential to sense dopamine levels for diagnosis and treatment purposes. In this study, a copper oxide-nickel oxide/reduced graphene oxide nanocomposite was fabricated using the sol-gel method and applied to modify a glassy carbon electrode. The nanocomposite demonstrated superior response in detecting dopamine compared to the metal oxide nanocomposite without graphene oxide. The sensitivity and detection limit of the nanocomposite were measured, and it showed potential for use as a flexible skin patch sensor for predicting abnormal dopamine levels such as Parkinson's disease.
MACROMOLECULAR SYMPOSIA
(2023)
Article
Computer Science, Artificial Intelligence
Manjula Devi Ramasamy, Keerthika Periasamy, Suresh Periasamy, Suresh Muthusamy, Ponarun Ramamoorthi, Gunasekaran Thangavel, Sreejith Sekaran, Kishor Kumar Sadasivuni, Mithra Geetha
Summary: This paper proposes an adaptive neural network-based Laplacian of Gaussian (AnLoG) classification algorithm for diagnosing diabetic retinopathy. The experimental results show that the proposed algorithm performs well in terms of accuracy and recall.
NEURAL COMPUTING & APPLICATIONS
(2023)
Review
Polymer Science
Swathi Ippili, Jang-Su Jung, Alphi Maria Thomas, Van-Hoang Vuong, Jeong-Min Lee, Mizaj Shabil Sha, Kishor Kumar Sadasivuni, Venkatraju Jella, Soon-Gil Yoon
Summary: The increasing presence of pathogenic microbes has generated a greater interest in antimicrobial polymer composites designed for hygiene applications. These innovative composites cleverly incorporate powerful antimicrobial agents such as metals, metal oxides, and carbon derivatives, equipping them with the ability to offer strong and long-lasting protection against diverse pathogens. These pioneering composites have the potential to create safer environments and contribute to public health advancement on a substantial scale.
