Article
Materials Science, Ceramics
Man Zhang, Jianhua Liu, Junwen Zhou
Summary: The effect of Eu2O3 doping amount on the densification behavior of MgAl2O4 and its corrosion resistance to aluminum electrolyte was studied. The results showed that Eu2O3 doping contributed to the densification of MgAl2O4, and the sample with 3 wt.% Eu2O3 had the highest relative density and hardness. Additionally, this sample exhibited the best corrosion resistance to aluminum electrolyte.
CERAMICS INTERNATIONAL
(2022)
Article
Environmental Sciences
Hassan Karimi-Maleh, Seyed Jafar Mousavi, Majid Mahdavian, Mouj Khaleghi, Sajjad Bordbar, Mehmet Lutfi Yola, Rozhin Darabi, Mei Liu
Summary: Adding silver nanoparticles to polyurea coating effectively inhibited the formation of sulfate-reducing bacteria biofilms and reduced the SRB population over 7 days. The nanocomposite coating showed improved corrosion properties, with coating resistance and charge transfer resistance increasing significantly after 1 day and 7 days, reflecting the enhancement in protective properties.
ENVIRONMENTAL RESEARCH
(2021)
Article
Materials Science, Multidisciplinary
Hui Liu, Lizhen Shi, Huan Liu, Ling Ren, Ke Yang
Summary: This study mainly investigated the corrosion behavior of laser powder bed fusion prepared antibacterial copper-bearing titanium alloy. The results showed that the LPBF-TiCu alloy exhibited excellent corrosion resistance and protective passive film in 3.5% NaCl solution due to its finer alpha'-Ti laths and homogenous dislocations. Furthermore, the LPBF-TiCu alloy promoted cell proliferation with an antibacterial rate of up to 94.81%. These findings suggest that the LPBF-TiCu alloy holds potential for clinical applications as novel personalized implants.
Article
Biochemistry & Molecular Biology
Siddharthan Nagarajan, Balagurunathan Ramasamy, Hemalatha Natarajan
Summary: Feather waste can be effectively converted into bioactive peptides using keratinase producing bacteria, which exhibit antioxidant, antibacterial, anticancer, and wound healing properties.
PROCESS BIOCHEMISTRY
(2023)
Article
Engineering, Environmental
Bo Liu, Jianghua Li, Zhongtian Zhang, James D. Roland, Bruce P. Lee
Summary: This study presents a novel hydrogel with pH responsive antibacterial activity. The hydrogel contains a pH responsive and reversible catechol-boronate linkage, which exhibits antimicrobial property under acidic conditions and becomes non-cytotoxic under basic conditions. The hydrogel can recover its antibacterial property when exposed to acidic pH. The strategy using catechol-Cl and phenylboronic acid provides a new approach for designing hydrogels with pH responsive antibacterial activity and reduced cytotoxicity.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Materials Science, Multidisciplinary
Cheng Xin, Nan Wang, Yongnan Chen, Binbin He, Qinyang Zhao, Lei Chen, Yufei Tang, Binli Luo, Yongqing Zhao, Xiaokang Yang
Summary: The study found that the morphology of the Ti2Cu phase in TiCu alloy significantly affects biological corrosion and antibacterial properties, with lamellar Ti2Cu phase having a higher galvanic interface and releasing more Cu2+ ions, resulting in a 99.5% antibacterial rate and great potential for medical implant applications.
MATERIALS & DESIGN
(2022)
Article
Food Science & Technology
Lihan Wang, Shasha Cheng, Kaiwen Qin, Xinyan Yang, Hao Wang, Chaoxin Man, Qianyu Zhao, Yujun Jiang
Summary: Packaging films containing antibacterial substances are important for controlling food contamination. This study developed composite films encapsulating APG in ZIF-8, which showed synergistic antibacterial effects and prolonged drug release. The composite films exhibited high inhibition against Staphylococcus aureus and Escherichia coli and significantly reduced bacterial count on apple surfaces during storage.
FOOD PACKAGING AND SHELF LIFE
(2023)
Article
Biotechnology & Applied Microbiology
Jyoti Anjani, Jyoti Mathur, Nidhi Srivastava
Summary: This study investigated the antimicrobial and cytotoxicity properties of a herbal combination made from onion peel, cucumber, orange and mango, and tested its antimicrobial activity against various strains. The results showed that the herbal combination exhibited moderate antimicrobial activity against E. coli and Citrobacter freundii, and inhibited the growth of Bacillus licheniformis, Lactobacillus plantarum and Staphylococcus mutans. The presence of flavonoids in the herbal combination was confirmed, and it was found to promote cell proliferation without affecting cell viability.
WORLD JOURNAL OF MICROBIOLOGY & BIOTECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Abhijit Pattnayak, Avi Gupta, N. V. Abhijith, Deepak Kumar, Jayant Jain, V. Chaudhry
Summary: This study focuses on the development of hard, wear-resistant ceramic-based coatings containing Alumina (Al2O3) doped with 0.8% Ceria (CeO2) and reduced graphene oxide (rGO, 0-0.2%) on 17-4 PH steel using High -Velocity Oxygen Fuel (HVOF) thermal spray process. The addition of rGO improves the coatings' friction coefficient and corrosion response. The Al2O3-CeO2-rGO coating exhibits higher elastic modulus, nano hardness, and lower specific wear rate compared to the Al2O3-CeO2 coating and 17-4 PH steel.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Multidisciplinary
Meijuan Tian, Zengyun Jian, Fange Chang, Rui Hai
Summary: The influence of pH value on the properties of electroless thick Ni-P coatings was investigated in this study. The morphology, structure, component, microhardness, coefficient of thermal expansion (CTE), and corrosion resistance of the coatings were analyzed. The experimental results showed that the phosphorus content of the amorphous Ni-P coatings decreased with the increase in pH value. The surface roughness, thickness, and expansion coefficient increased with the increase in phosphorus content, while hardness and corrosion resistance decreased.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Materials Science, Multidisciplinary
Hai Wang, Wenwei Gao, Xiyue Zhang, Yi Li, Shuyuan Zhang, Ling Ren, Ke Yang
Summary: The Ti15Zr5Cu alloy developed in this study, without toxic elements, showed good workability and could be converted into an ultrafine-grained microstructure under certain conditions. It demonstrated better corrosion resistance, antibacterial properties, and biocompatibility compared to other alloys. These findings contribute to the development of new medical titanium alloys.
Article
Engineering, Biomedical
Fasih Bintang Ilhami, Sin-Yu Huang, Chih-Chia Cheng
Summary: This study presents a simple and efficient method for the fabrication of water-soluble metallosupramolecular polymers. The resulting self-assembled nano-objects exhibit outstanding antibacterial activity and have the potential to improve the efficacy and safety of selective cancer therapy.
ACTA BIOMATERIALIA
(2022)
Article
Materials Science, Multidisciplinary
Li Yang, Xiaohong Shi, Xinfa Tian, Yibei Xue, Jiancheng Wang, Lehua Qi
Summary: The effect of pH value on the corrosion behavior and microstructural evolution of carbon fiber reinforced magnesium matrix composites was investigated. The results showed that the corrosion current density decreased and the corrosion resistance improved with increasing pH value. The microstructure of the composites underwent a series of evolution processes after corrosion in a solution with pH = 13.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Chemistry, Physical
Eunjoo Koh, Yong Taek Lee
Summary: Specific pH and humidity response ligand brush porous nanocapsules (PNCs) were prepared using Pickering and colloidal methods. The ligand brushes grafted onto the surface of PNCs effectively prevented the release of core material, and displayed antibacterial activity against E. coli at pH 6 and 7, with the slowest proliferation observed at pH 6 under 100% RH conditions.
APPLIED SURFACE SCIENCE
(2021)
Article
Engineering, Biomedical
Lukasz Pawlowski, Michal Bartmanski, Anna Ronowska, Adrianna Banach-Kopec, Szymon Mania, Bartlomiej Michal Cieslik, Aleksandra Mielewczyk-Gryn, Jakub Karczewski, Andrzej Zielinski
Summary: This study developed a novel titanium implant with high osteointegration properties and antimicrobial activity through surface modification. The multi-step modification process involved electrochemical oxidation, silver nanoparticle decoration, and biopolymer coating. The modified samples showed increased roughness, reduced burst release of silver, potent antimicrobial activity, and good compatibility with osteoblast cells.
JOURNAL OF BIOMEDICAL MATERIALS RESEARCH PART B-APPLIED BIOMATERIALS
(2023)
Article
Chemistry, Physical
Andrea Alimenti, Kostiantyn Torokhtii, Pablo Vidal Garcia, Enrico Silva, Mihai Alexandru Grigoroscuta, Petre Badica, Adrian Crisan, Nicola Pompeo
Summary: We present multifrequency measurements of the surface resistance of spark-plasma-sintered MgB2 using a dielectric loaded resonator at 16.5 and 26.7 GHz. Magnetic fields up to 1.2 T were applied to the sample surface, driving it into the mixed state. Vortex dynamics in the sample were fully described within a single-component approach, with pinning phenomena characterized by a depinning frequency smaller than the measurement ones. The multiband nature of the superconductor was observed in the field dependence of the flux-flow resistivity and the upper critical field was extracted in the low-temperature range, showing consistency with literature data.
Article
Pharmacology & Pharmacy
Mihaela Deaconu, Ana-Maria Prelipcean, Ana-Maria Brezoiu, Raul-Augustin Mitran, Gabriela Isopencu, Cristian Matei, Daniela Berger
Summary: This study aimed to design composites for topical application that can prevent and/or assist in bacterial infections and support cell regeneration using natural components. A polyphenolic extract obtained from Salvia officinalis was embedded in functionalized mesoporous silica nanoparticles and distributed into a collagen porous scaffold. The resulting composites exhibited enhanced antibacterial activity and good cytocompatibility, and improved thermal stability of the scaffold.
Article
Chemistry, Multidisciplinary
Fei Pan, Mingqiang Ning, Zhenhua Li, Dan Batalu, Hongtao Guo, Xiao Wang, Hongjing Wu, Wei Lu
Summary: In this study, ferromagnetic microwave absorbers with different sequential architectures were designed using a bottom-up self-assembly method. The fibrous samples exhibited the best microwave absorption performance at a breakthrough filler loading of 2 wt%, and the microwave attenuation mechanism was explained by the coupling-enhancement effect between functional units.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Biochemistry & Molecular Biology
Mariana Chelu, Adina Magdalena Musuc, Ludmila Aricov, Emma Adriana Ozon, Andreea Iosageanu, Laura M. Stefan, Ana-Maria Prelipcean, Monica Popa, Jose Calderon Moreno
Summary: This research describes a new methodology for obtaining biocompatible hydrogels based on Aloe vera for wound healing applications. Two hydrogels (AV5 and AV10) with different concentrations of Aloe vera were prepared using an all-green synthesis method from renewable and bioavailable materials. The hydrogels showed good antibacterial properties and promoted cell proliferation, migration, and wound closure. This Aloe vera based hydrogel may be suitable for wound healing applications based on its morphology, rheological properties, cytocompatibility, and cell viability.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2023)
Review
Chemistry, Physical
Hongtao Guo, Xiao Wang, Fei Pan, Yuyang Shi, Haojie Jiang, Lei Cai, Jie Cheng, Xiang Zhang, Yang Yang, Lixin Li, Zheng Xiu, Dan Batalu, Wei Lu
Summary: Recently, great efforts have been made to explore high-performance microwave absorbing (MA) materials, such as MXenes. MXenes demonstrate superiority to conventional nanomaterials and can be hybridized with other mediums to enhance MA properties. MXene-based materials with smart design are a research priority for new applications in the intelligent era. This review introduces the fabricating methods of MXenes, discusses their MA performances, and presents future perspectives and opportunities for MXene-based MA materials.
Article
Multidisciplinary Sciences
A. Kuncser, O. Vasylkiv, H. Borodianska, D. Demirskyi, P. Badica
Summary: In this study, a high-density (99.5%) ceramic composite composed of titanium boride and boron carbide was fabricated by spark plasma sintering. The material exhibited high bending strength of approximately 1.1 GPa when tested at 1800 degrees C in an Ar atmosphere. The peculiar strength-strain curve indicated the presence of three regions with varying contributions of elastic and plastic deformations. Transmission electron microscopy observations revealed a rearrangement mechanism in the boron carbide crystals, where stacking faults and twins transformed into nano-twins, leading to both plastic deformation and strengthening.
SCIENTIFIC REPORTS
(2023)
Article
Engineering, Chemical
Elena Mihai, Bogdan-Stefan Negreanu-Pirjol, Oana Craciunescu, Teodora Ciucan, Andreea Iosageanu, Ana-Maria Seciu-Grama, Ana-Maria Prelipcean, Elena Utoiu, Viorica Coroiu, Ana-Maria Ghenea, Ticuta Negreanu-Pirjol
Summary: This study evaluated the hypoglycemic potential, antioxidant activity, and prebiotic activity of blueberry pomace extract, chia seed extract, and a novel combination of the two extracts. The results showed that the combination had higher inhibitory activity on alpha-amylase and scavenging activity on free radicals, as well as the ability to protect intestinal cells against oxidative stress and promote the growth of beneficial bacteria. These findings suggest that the novel combination has improved biological activity and potential for developing functional food for diabetes and gastrointestinal conditions.
Review
Biochemistry & Molecular Biology
Bogdan-Stefan Negreanu-Pirjol, Ovidiu Cristian Oprea, Ticuta Negreanu-Pirjol, Florentina Nicoleta Roncea, Ana-Maria Prelipcean, Oana Craciunescu, Andreea Iosageanu, Victoria Artem, Aurora Ranca, Ludmila Motelica, Anca-Cristina Lepadatu, Madalina Cosma, Dan Razvan Popoviciu
Summary: Lonicera caerulaea L. and Aronia melanocarpa (Michx.) Elliot fruits are rich in bioactive compounds and have numerous health benefits. L. caerulea has higher antioxidant activity and ascorbic acid level compared to commonly consumed berries like blackberries and strawberries. A. melanocarpa is known for its high antioxidants content, surpassing other fruits like currants, cranberries, blueberries, elderberries, and gooseberries. This review aims to highlight the potential health benefits of these fruits and promote their cultivation and processing as nutraceutical sources.
Article
Engineering, Biomedical
Monica Popa, Mihai Anastasescu, Laura M. Stefan, Ana-Maria Prelipcean, Jose Calderon Moreno
Summary: Mg is the preferred material for biodegradable implants, but it requires protective surfaces to prevent rapid degradation and provide cytocompatibility and bacterial resistance. In this study, a green, one-step process was used to grow magnesian calcite biomimetic coatings on biodegradable Mg. The coatings showed cell compatibility higher than 80% after 72 h and significantly inhibited bacterial adhesion and biofilm formation. These findings demonstrate that the coatings have the necessary properties for surface-modified Mg biomaterials for temporary implants.
JOURNAL OF FUNCTIONAL BIOMATERIALS
(2023)
Article
Chemistry, Physical
B. Savaskan, U. K. Ozturk, S. B. Guner, M. Abdioglu, M. V. Bahadir, S. Acar, M. Somer, A. M. Ionescu, C. Locovei, M. Enculescu, P. Badica
Summary: Bulk MgB2 discs were prepared by in situ synthesis of magnesium and boron powders. Two methods were used to produce boron powders, one involving a high temperature magnesiothermic synthesis process and the other involving diborane pyrolysis. The boron powders obtained had different purities and crystallinity. The bulks of MgB2 were characterized and the levitation forces were found to be highest with amorphous lower purity boron. The use of lower purity boron enhances the applicability potential of MgB2 superconductor for levitation applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Biochemistry & Molecular Biology
Ana-Maria Brezoiu, Mihaela Deaconu, Raul-Augustin Mitran, Ana-Maria Prelipcean, Cristian Matei, Daniela Berger
Summary: Polyphenolic extracts from natural sources have beneficial properties for human health and can be standardized using the design of experiments. A 2(3)-full factorial model was used to optimize the polyphenol extraction from wild bilberry leaves, and the results were validated by high-performance liquid chromatography. The optimized extract showed antimicrobial properties and a synergistic effect of its components.
Article
Pharmacology & Pharmacy
Bogdan Purcareanu, Manuela Diana Ene, Alina Morosan, Dan Eduard Mihaiescu, Mihai Alexandru Florea, Adelina Ghica, Roxana Andreea Nita, Veronica Drumea, Mihai Alexandru Grigoroscuta, Andrei Kuncser, Petre Badica, Laura Olariu
Summary: The treatment of wounds remains a challenge for healthcare professionals, and the development of biocompatible and efficient medicines is a goal. Mesoporous materials loaded with bioactive compounds from natural extracts have potential for wound treatment. In this study, MCM-41-type mesoporous material was synthesized and characterized. The desorption degree of the natural extracts was monitored, and the active ingredients in the composite materials were quantified. The evaluation of the biological composites' activity on the wound site revealed their re-epithelializing properties.
Article
Materials Science, Multidisciplinary
Valentina Peluso, Ugo D'Amora, Ana Maria Prelipcean, Stefania Scala, Nicola Gargiulo, Ana-Maria Seciu-Grama, Domenico Caputo, Roberto De Santis, Antonio Gloria, Teresa Russo
Summary: The inclusion of 10% by weight of Ag-MBGs improves the mechanical properties of PCL and exhibits antimicrobial effects. However, above a certain concentration, Ag-MBGs act as weak points in the composite substrates. These findings suggest the potential application of PCL/Ag-MBGs composites in maxillofacial bone and/or periodontal tissue repair.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Bogdan -Stefan Negreanu-pirjol, Ticuta Negreanu-pirjol, Dan Razvan Popoviciu, Victoria Artem, Aurora Ranca, Oana Craciunescu, Ana -Maria Prelipcean, Ludmila Motelica, Monica Vasile
Summary: This study investigated the physico-chemical properties, composition, and correlation to total antioxidant capacity of some fluid extracts of Lonicera caerulea L. berries. The results showed that the hydroalcoholic extract in 70:30 (v:v) ethanol had significantly higher content of vitamin C, carbohydrates, and carotenoids, as well as similar quantities of other bioactive compounds. Furthermore, this extract exhibited the highest total antioxidant activity, comparable to the antioxidant resveratrol.
UNIVERSITY POLITEHNICA OF BUCHAREST SCIENTIFIC BULLETIN SERIES B-CHEMISTRY AND MATERIALS SCIENCE
(2023)
Article
Materials Science, Ceramics
G. Aldica, V. Sandu, S. Popa, I. Pasuk, M. Enculescu, A. M. Ionescu, P. Badica
Summary: High density samples of MgB2 were prepared by Spark Plasma Sintering (SPS). Different on-off pulsed current patterns affected the formation of secondary MgB4 phase and MgO crystallites. The study also revealed complex impacts of pulsed patterns on superconducting properties.
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)
