Article
Chemistry, Applied
Heqi Li, Caihong Xue, Li Gao, Xiaomin Wang, Haomin Wei, Hui Nan, Gang Wang, Hong Lin
Summary: The new environmentally friendly modified graphene oxide/waterborne epoxy composite coating exhibited excellent corrosion resistance and slight harm to the environment. The modified graphene oxide improved dispersion and reduced aggregation, leading to a labyrinth structure corrosion path in the coating for enhanced protection efficiency.
PROGRESS IN ORGANIC COATINGS
(2021)
Review
Chemistry, Applied
Jie Mu, Fangjian Gao, Gan Cui, Shun Wang, Sen Tang, Zili Li
Summary: Graphene in anticorrosive composite coatings shows great potential due to its excellent properties, gradually replacing traditional coatings. The comprehensive performance advantages of graphene-composite coatings provide excellent anticorrosive properties, with multi-functional cooperative protection. Optimization measures are proposed to address the shortcomings of graphene in its application, and the development trend in the field of anticorrosive materials is analyzed.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Materials Science, Coatings & Films
Agnieszka Witecka, Svenja Valet, Michal Basista, Aldo Roberto Boccaccini
Summary: Composite coatings based on chitosan and bioactive glass particles fabricated by electrophoretic deposition on pre-treated magnesium alloys show promising potential in bone regeneration applications by suppressing substrate corrosion and promoting cell response.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Materials Science, Coatings & Films
Zuveria Firdouz, Pragya Tripathi, K. Mondal, Kantesh Balani
Summary: This study evaluated the magnetic and anticorrosive properties of Ni-Cu alloy-based composite coatings reinforced with CNT, graphene, and diamond. The results showed that the addition of graphene significantly improved the corrosion resistance, while the incorporation of CNT enhanced the magnetic properties of the coatings.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Polymer Science
Sherif Madkour, Marcel Gawek, Andreas Hertwig, Andreas Schoenhals
Summary: The thermodynamic behavior of thin PVME films with an irreversible adsorbed layer on the substrate was studied. Various techniques, including leaching, AFM, ellipsometry, and dielectric spectroscopy, were used to investigate growth kinetics, critical film thickness, influence on glass transition temperature, and molecular dynamics of the adsorbed layer. The study revealed strong percolation effects of the adsorbed layer on thin films.
Review
Chemistry, Applied
Fangjian Gao, Jie Mu, Zhenxiao Bi, Shun Wang, Zili Li
Summary: Polyaniline (PANI) has drawbacks in anti-corrosion coatings, but has shown outstanding performance in smart coatings, antibacterial coatings, etc. The article summarizes the challenges faced in polyaniline research and proposes improvement methods, providing suggestions for future research.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Materials Science, Coatings & Films
Sabarison Pandiyarajan, Po-Ju Hsiao, Ai-Ho Liao, Muthusankar Ganesan, Sheng-Tung Huang, Ho-Chiao Chuang
Summary: The study investigated the influence of electrodeposition conditions on the electrochemical performance of Cu/PVP composite materials, with results indicating that the electrodeposition quality and performance were optimal under ultrasonic-assisted supercritical-CO2 (US-SC-CO2) conditions.
SURFACE & COATINGS TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Timo Reinheimer, Tim P. Mach, Kevin Haeuser, Michael J. Hoffmann, Joachim R. Binder
Summary: A thorough investigation of dielectric behavior in printed capacitors using a ceramic/polymer composite layer is presented. The ink used contains Ba0.6Sr0.4TiO3 with modified surface properties, a crosslinking agent, and a thermal initiator for immediate ink polymerization. The capacitors with different dielectric layer thicknesses were printed to measure capacitance and loss factor values. The exact layer thicknesses were determined using cross-sectional SEM images, and the permittivities were calculated based on the known effective area. Varying the ink composition yielded different ceramic/polymer ratios and permittivities, which were validated through SEM analysis. Furthermore, the leakage current and the choice of bottom electrode were measured and discussed for performance optimization.
Article
Materials Science, Multidisciplinary
Yao Meng, Yuyun Yang, Changlin Zhang, Xiufang Cui, Erbao Liu, Guo Jin, Jiajie Kang, Peng She
Summary: This study investigates the influence of bioactive glass (BG) addition on the microstructure and electrochemical properties of TC4 coatings. The incorporation of BG significantly affects the microstructure of the TC4 coatings, forming a distinct interface between the TC4 matrix and BG aggregates. TC4/BG composite coatings exhibit stability similar to passive films and good resistance against media corrosion, with enhanced corrosion resistance in certain solutions. Further research can explore the bioactivity enhancement and long-term stability of TC4/BG composite coatings in diverse physiological environments.
Review
Materials Science, Multidisciplinary
Yumin Zhang, Jiulong Sun, Xinzhe Xiao, Ning Wang, Guozhe Meng, Lin Gu
Summary: This article comprehensively reviews the application of graphene-like 2D nanosheets in metal protection, including preparation methods, surface functionalization, performance and optimization of pure nanosheets coatings, as well as the performance, mechanism and optimizations of composite coatings. The future development of 2D nanosheets-based anticorrosive coatings is also prospected, and the challenges in industrial application are discussed.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Mechanical
Shengfang Yu, Yawen Yang, Limin Ma, Weihong Jia, Qi Zhou, Jinyu Zhu, Jinqing Wang
Summary: The synergistic effect between nanomaterials with different dimensions can enhance wear and corrosion resistance of surface protective coatings. This study found that the GO-pva-SiC coating exhibits good lubricating performance under low load, while the RGO-pva-SiC coating has a longer wear life under high load. Furthermore, the addition of SiC nanowires can enhance the corrosion resistance of graphene-based coatings.
TRIBOLOGY INTERNATIONAL
(2023)
Article
Acoustics
Baosong Li, Tianyong Mei, Hongqiang Chu, Jiajia Wang, Shengsong Du, Yicheng Miao, Weiwei Zhang
Summary: Ni/diamond composite coatings were synthesized by ultrasonic-assisted electrodeposition, showing that diamonds were evenly distributed in the composites, enhancing hardness and wear resistance, and exhibiting better corrosion resistance compared to coatings prepared under mechanical stirring conditions.
ULTRASONICS SONOCHEMISTRY
(2021)
Article
Chemistry, Applied
Ehsan Vafa, Reza Bazargan-Lari, Mohammad Ebrahim Bahrololoom
Summary: In this study, a polyvinyl alcohol reinforced natural chitosan/bioactive glass composite coating was prepared on 316L stainless steel by electrophoretic deposition process. The 25% PVA concentration in the composite coating showed increased corrosion resistance and bio-stability compared to 15% and 20% PVA concentrations, with better bioactivity and hydroxyapatite forming ability in vitro observed with 20% PVA concentration.
PROGRESS IN ORGANIC COATINGS
(2021)
Article
Materials Science, Coatings & Films
B. Hoomehr, K. Raeissi, F. Ashrafizadeh, M. Kharaziha, S. Labbaf
Summary: A bioactive glass-zirconia core-shell composite coating was studied to improve the biological and corrosion performance of the Ti6Al4V substrate. The coating showed higher barrier performance and maintained bioactivity compared to a bioactive glass coating group. Additionally, the core-shell coating exhibited non-cytotoxicity and promoted cell proliferation, possibly due to the presence of a zirconia shell for pH control.
SURFACE & COATINGS TECHNOLOGY
(2022)
Article
Energy & Fuels
P. K. Thejus, K. V. Krishnapriya, K. G. Nishanth
Summary: A series of inorganic pigments LiMg1-xCoxPO4 were synthesized by conventional solid-state method and their optical characteristics were investigated. LiMg0.8Co0.2PO4 showed excellent performance and potential applications in coatings and transparent matrices.
Article
Biochemistry & Molecular Biology
Nicoleta Sandu, Claudia G. Chilom, Melinda David, Monica Florescu
Summary: This study investigated the interaction between the hydrophilic drug levothyroxine (LT4) and bovine serum albumin (BSA). Various techniques including UV-vis measurements, Fourier-transform infrared spectroscopy (FT-IR), fluorescence, fluorescence resonance energy transfer (FRET), Surface Plasmon Resonance (SPR), and molecular docking analysis were used. The results showed that LT4 binds to BSA through ground-state complex formation, driven mainly by hydrogen bonds and van der Waals forces. The immobilization of BSA was found to be crucial for the binding of LT4. These findings have important implications for understanding the pharmacological significance of LT4-protein binding.
JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS
(2022)
Article
Chemistry, Multidisciplinary
Luiza Izabela Jinga, Gianina Popescu-Pelin, Gabriel Socol, Sorin Mocanu, Madalina Tudose, Daniela C. Culita, Andrei Kuncser, Petre Ionita
Summary: In this study, gold nanoparticles were deposited on titanium dioxide nanoparticles and the material was found to effectively degrade methylene blue dye in the presence of hydrogen peroxide. Longer exposure time and higher oxidant content led to up to 90% degradation of the dye. The material showed promising reusability without loss of activity.
Article
Spectroscopy
Nicoleta Sandu, Claudia G. Chilom, Monica Florescu
Summary: Research has shown that rutin can affect the structure of the BSA-LT4 complex, with fluorescence studies confirming the affinity and quenching mechanism of rutin to the complex. Thermodynamic parameters indicate that the binding of rutin to BSA-LT4 is a spontaneous process driven primarily by enthalpy and electrostatic forces.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Biochemistry & Molecular Biology
Nicoleta Cazacu, Claudia G. Chilom, Melinda David, Monica Florescu
Summary: Levothyroxine (LT4) is commonly used for treating hypothyroidism. This study investigated the influence of vitamins (C, B12, and folic acid) on the complex of Bovine Serum Albumin with LT4 (BSA-LT4). The results showed that vitamin C and folic acid statically quenched the fluorescence of the BSA-LT4 complex, while vitamin B12 had a combined mechanism. The binding of vitamin B12 was stronger, resulting in an extended storage time of LT4 in blood plasma. The interaction between the vitamins and BSA-LT4 mainly occurred near Trp, with vitamin B12 having the most pronounced effect.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2022)
Article
Chemistry, Analytical
Melinda David, Adrian Serban, Teodor Adrian Enache, Monica Florescu
Summary: This study described and compared the performances of commercial screen-printed carbon electrodes with different nanostructured materials for LT4 detection. The presence of carbon nanotubes resulted in the best performance for LT4 detection.
JOURNAL OF ELECTROANALYTICAL CHEMISTRY
(2022)
Article
Engineering, Mechanical
Muhammad Arif Mahmood, Andrei C. Popescu, Mihai Oane, Carmen Ristoscu, Ion N. Mihailescu
Summary: This paper develops efficient and simplified models for thermal distribution, melt pool dimensions, and controlled phase change in laser additive manufacturing of ceramic materials. The study shows that powder particles have higher thermal distribution due to voids in the powder layer. The presence of voids increases the surface absorption coefficient, which influences the laser beam's behavior. The relationship between laser power and melt pool dimensions is direct, while scanning speed has an inverse relationship. The results obtained from analytical simulations, experimental investigations, and numerical simulations are in good agreement within a range of 4%-8%.
RAPID PROTOTYPING JOURNAL
(2022)
Article
Chemistry, Multidisciplinary
Muhammad Arif Mahmood, Asif Ur Rehman, Carmen Ristoscu, Mehmet Demir, Gianina Popescu-Pelin, Fatih Pitir, Metin Uymaz Salamci, Ion N. Mihailescu
Summary: This study presents two analytical models for the laser powder bed fusion (LPBF) process and validates the models through experiments. The results show that laser power, laser scanning speed, and hatch distance have direct or indirect effects on the average dendrite grain size. The study further establishes a correlation between the average dendrite grain size and hardness value.
Article
Pharmacology & Pharmacy
Irina Negut, Carmen Ristoscu, Tatiana Tozar, Mihaela Dinu, Anca Constantina Parau, Valentina Grumezescu, Claudiu Hapenciuc, Marcela Popa, Miruna Silvia Stan, Luminita Marutescu, Ion N. Mihailescu, Mariana Carmen Chifiriuc
Summary: This study proposes a composite material coating based on bioglass/antibiotic/polymer for improved bioperformance of metallic devices. The laser-deposited coatings are found to be biocompatible and resistant to microbial colonization and biofilm formation.
Article
Materials Science, Multidisciplinary
C. E. Staicu, F. Jipa, I Porosnicu, A. Bran, E. Stancu, C. Dobrea, B. M. Radu, E. Axente, I Tiseanu, F. Sima, K. Sugioka
Summary: Lab-on-a-chip strategies using miniaturized devices allow cells to be cultured in a 3D space that mimics in vivo environment. This study proposes a miniaturized lab-on-chip glass device for dosimetry measurements and evaluation of the biological effects of ionizing radiation on cancer cells. Microfluidic networks are created using high repetition rate picosecond laser-assisted etching in photo-sensitive glasses, and radiation dose is evaluated using collimated X-ray beams. This lab-on-chip platform provides a valuable tool for analyzing cellular response to new irradiation strategies.
APPLIED PHYSICS A-MATERIALS SCIENCE & PROCESSING
(2022)
Article
Crystallography
Cristian N. Mihailescu, Mihai Oane, Bogdan A. Sava, Andrei C. Popescu, Mihail Elisa, Muhammad Arif Mahmood, Natalia Mihailescu, Ana V. Filip, Sinziana Andreea Anghel, Ion N. Mihailescu, Carmen Ristoscu
Summary: A semi-analytical-numerical solution is proposed for the laser additive manufacturing process, which describes the interaction between laser and ceramics. The thermal distribution within the ceramic sample is inferred using the Fourier heat equation. The study shows an inverse correlation between the laser scanning speed and thermal distribution intensity. This model is useful for describing and monitoring low-intensity laser beam-ceramic processing.
Article
Multidisciplinary Sciences
Mihai Oane, Bogdan A. Sava, Muhammad Arif Mahmood, Natalia Mihailescu, Sinziana Anghel, Ana V. Filip, Ion N. Mihailescu, Cristian N. Mihailescu, Carmen Ristoscu
Summary: A novel analytical formalism based on the Quantum heat transport equation is proposed to describe the interaction between femtosecond/picosecond laser pulses and DNA. The formalism generates solutions based on inputs such as voltage, laser beam intensity, and laser-DNA interaction time. Thermal waves induced inside irradiated DNA are accounted for. Analytical simulations show that the optimal regime of laser-DNA interaction occurs when a potential carrier generated at the interface is equal to 3.5 x 10-3 eV. It should be noted that the formalism breaks down if the potential carrier generated at the interface is less than 10-2 eV. Additionally, for pulse durations less than 1 ps, the spatial-temporal distribution of the laser beam plays a crucial role in defining the shape and magnitude of the thermal distribution within the irradiated DNA strands.
Review
Chemistry, Multidisciplinary
Irina Negut, Carmen Ristoscu
Summary: Bioactive glasses have been developed into various items for treating medical problems. They are not only used in healing hard tissues but also gaining popularity in soft tissue healing. They accelerate skin regeneration and have positive effects on wound healing stages. They can adhere to hard tissues and aid in their regeneration by forming a calcium-phosphate-like layer.
APPLIED SCIENCES-BASEL
(2023)
Article
Chemistry, Physical
Nicolae A. Enaki, Ion Munteanu, Tatiana Paslari, Marina Turcan, Elena Starodub, Sergiu Bazgan, Diana Podoleanu, Carmen Ristoscu, Sinziana Anghel, Maria Badiceanu, Ion N. Mihailescu
Summary: Nowadays, there is considerable interest in using metamaterials for fluid decontamination and pathogen annihilation. The novelty of this research lies in the significant increase in depollution effects achieved by packing metamaterials and using UVC irradiation. Packing smaller elements between larger elements allows for deeper penetration of radiation into the fluid and optimal dispersion of this radiation, promoting enhanced depollution against pathogen agents.
Article
Materials Science, Multidisciplinary
Sinziana-Andreea Anghel, Mihai Oane, Cristian N. Mihailescu, Bogdan A. Sava, Mihail Elisa, Natalia Mihailescu, Dorina Ticos, Alexandra M. I. Trefilov, Carmen Ristoscu, Ana V. Filip, Ion N. Mihailescu
Summary: The ultrafast fs laser pulse heating of thin metal films is studied for the first time using the two-temperature model based on the Fokker-Planck formalism. The predictions are intended for experimentalists in various fields who can benefit from the understanding of the interdependence between the target's size, the phonon/lattice characteristics, and the coefficient beta. The study highlights the importance of nano-sized spatial dimensions of the metal sample.
Article
Biochemistry & Molecular Biology
Irina Negut, Gratiela Gradisteanu-Pircalabioru, Mihaela Dinu, Bogdan Bita, Anca Constantina Parau, Valentina Grumezescu, Carmen Ristoscu, Mariana Carmen Chifiriuc
Summary: This study reports the use of MAPLE synthesized thin films based on BG and VD3 to enhance osseointegration and corrosion protection of Ti-like implant surfaces. The results show that the films have good chemical stability and biocompatibility, with favorable cell adhesion and no inflammatory response. The films also demonstrate good wettability, facilitating interaction with biological fluids.
Article
Materials Science, Biomaterials
Mohammadreza Kasravi, Alireza Yaghoobi, Tahereh Tayebi, Mahsa Hojabri, Abdolkarim Talebi Taheri, Fatemeh Shirzad, Bahram Jambar Nooshin, Radman Mazloomnejad, Armin Ahmadi, Fatemeh A. Tehrani, Ghasem Yazdanpanah, Mohammad Hadi Farjoo, Hassan Niknejad
Summary: As a promising approach in translational medicine, the decellularization of discarded livers to produce bioscaffolds that support recellularization has potential in overcoming the limitations of conventional liver transplantation. In this study, the researchers investigated the use of matrix metalloproteinase (MMP) inhibition to preserve the extracellular matrix (ECM) during liver decellularization. The results demonstrated that the application of an MMP inhibitor significantly improved the preservation of ECM components and mechanical properties of the bioscaffolds, which supported cell viability and function in vitro. The study also confirmed that the MMP inhibition led to the inhibition of MMP2 and MMP9, providing a novel method to enhance ECM preservation during liver decellularization.
BIOMATERIALS ADVANCES
(2024)
Article
Materials Science, Biomaterials
Mohammadsadegh Nadimifar, Weiguang Jin, Clara Coll-Satue, Gizem Bor, Paul Joseph Kempen, Ali Akbar Moosavi-Movahedi, Leticia Hosta-Rigau
Summary: This study presents a metal-phenolic self-assembly approach that can prepare nanoparticles fully made of hemoglobin. The nanoparticles exhibit good oxygen binding and releasing capabilities.
BIOMATERIALS ADVANCES
(2024)
Article
Materials Science, Biomaterials
Jyoti Kumari, Roel Hammink, Jochem Baaij, Frank A. D. T. G. Wagener, Paul H. J. Kouwer
Summary: Fibrosis is the formation of fibrous connective tissue in response to injury, leading to organ dysfunction. A novel hybrid hydrogel combining synthetic polyisocyanide with hyaluronic acid has been developed, showing strong antifibrotic properties.
BIOMATERIALS ADVANCES
(2024)
Letter
Materials Science, Biomaterials
Melissa Machado Rodrigues, Cristian Padilha Fontoura, Charlene Silvestrin Celi Garcia, Sandro Tomaz Martins, Joao Antonio Pegas Henriques, Carlos Alejandro Figueroa, Mariana Roesch Ely, Cesar Aguzzoli
BIOMATERIALS ADVANCES
(2024)
Article
Materials Science, Biomaterials
Jessica Polak, David Sachs, Nino Scherrer, Adrian Suess, Huan Liu, Mitchell Levesque, Sabine Werner, Edoardo Mazza, Gaetana Restivo, Mirko Meboldt, Costanza Giampietro
Summary: Human skin equivalents (HSEs) play a crucial role in tissue engineering. This study introduces a 3D-printed culture insert to apply a static radial constraint on HSEs and examines its effects on tissue characteristics. The results show that the diameter of the culture insert significantly influences tissue contraction, fibroblast and matrix organization, keratinocyte differentiation, epidermal stratification, and basement membrane formation. This study provides important insights for the design of skin tissue engineering.
BIOMATERIALS ADVANCES
(2024)
Review
Materials Science, Biomaterials
Shiliang Chen, Tianming Du, Hanbing Zhang, Jing Qi, Yanping Zhang, Yongliang Mu, Aike Qiao
Summary: This paper reviewed the primary methods for improving the overall properties of biodegradable zinc stents. It discussed the mechanical properties, degradation behavior, and biocompatibility of various improvement strategies. Alloying was found to be the most common, simple, and effective method for improving mechanical properties. Deformation processing and surface modification further improved the mechanical properties and biological activity of zinc alloys. Meanwhile, structural design could endow stents with special properties. Manufacturing zinc alloys with excellent properties and exploring their interaction mechanism with the human body are areas for future research.
BIOMATERIALS ADVANCES
(2024)
