Article
Dentistry, Oral Surgery & Medicine
W. E. Yang, H. H. Huang
Summary: This study aimed to enhance osteogenic responses to roughened titanium dental implants by forming a superhydrophilic TiO2 nanonetwork surface structure, which significantly improved bone-to-implant contact in vivo.
JOURNAL OF DENTAL RESEARCH
(2021)
Article
Engineering, Biomedical
Diana C. Martinez, Anna Dobkowska, Romy Marek, Hanna Cwieka, Jakub Jaroszewicz, Tomasz P. Plocinski, Crtomir Donik, Heike Helmholz, Berengere Luthringer-Feyerabend, Berit Zeller-Plumhoff, Regine Willumeit-Roemer, Wojciech Swieszkowski
Summary: This study investigated the degradation of an Mg-0.45Zn-0.45Ca (ZX00) screw in vitro and in vivo. The results showed that the ZX00 alloy promoted bone healing and the formation of new bone. Despite the correlation with the production procedure, the ZX00 alloy was still suitable for temporary bone implants.
BIOACTIVE MATERIALS
(2023)
Article
Dentistry, Oral Surgery & Medicine
Camilla Magnoni Moretto Nunes, Camila Lopes Ferreira, Daniella Vicensotto Bernardo, Cassia Carolina Rabelo Lopes, Luma Collino, Victoria Clara da Silva Lima, Daphne de Camargo Reis Mello, Luana Marotta Reis de Vasconcellos, Maria Aparecida Neves Jardini
Summary: The study indicated that applying PEMF for a shorter period of time and in the early stages of bone healing can effectively optimize the events in bone tissue that lead to osseointegration.
CLINICAL ORAL INVESTIGATIONS
(2021)
Article
Chemistry, Physical
Keila Lovera-Prado, Vicente Vanaclocha, Carlos M. Atienza, Amparo Vanaclocha, Pablo Jorda-Gomez, Nieves Saiz-Sapena, Leyre Vanaclocha
Summary: In this study, a new dental implant with improved primary stability features was evaluated using static and flexion-compression fatigue tests. The results showed that the implant fatigue limit is satisfactory for incisor and canine teeth for healthy patients, ensuring long-lasting life against loads below the fatigue limit.
Article
Medicine, General & Internal
Javier Gil, Clara Sandino, Miguel Cerrolaza, Roman Perez, Mariano Herrero-Climent, Blanca Rios-Carrasco, Jose Vicente Rios-Santos, Aritza Brizuela
Summary: The purpose of this study was to investigate the biomechanical response of dental implants in different positions and cortical bone thicknesses. Numerical simulations and in vivo experiments showed that implants placed 0.5 mm below the bone level with smaller thickness had the best performance in terms of osseointegration.
JOURNAL OF CLINICAL MEDICINE
(2022)
Review
Materials Science, Multidisciplinary
Song Zhao, Moslem Tayyebi, Mahdireza Yarigarravesh, Guangfan Hu
Summary: Materials with medical applications, such as magnesium (Mg) alloys, have recently gained attention due to their desirable properties and potential in orthopedic appliances and bioresorbable scaffolds. However, the rapid corrosion rate of Mg poses challenges in clinical bone restoration. This study thoroughly introduces the properties, applications, and drawbacks of Mg and its alloys, as well as techniques to improve their corrosion resistance.
JOURNAL OF MATERIALS SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Dong-Jun Seo, Seong-Yong Moon, Jae-Seek You, Won-Pyo Lee, Ji-Su Oh
Summary: This study aimed to identify a method that can maximize implant primary stability (IPS) and bone density in low-density bones through an ex vivo study. The results showed that the osseodensification technique in the counter-clockwise direction can increase the IPS and bone mineral density of dental implants.
APPLIED SCIENCES-BASEL
(2022)
Article
Dentistry, Oral Surgery & Medicine
Yohei Jinno, Michele Stocchero, Marco Toia, Evaggelia Papia, Marianne Ahmad, Jonas Peter Becktor
Summary: This study aimed to evaluate the effects of saliva contamination during implant placement with different surface characteristics on osseointegration in native and augmented bone areas. The results showed that saliva contamination had a negative impact on bone-implant contact, especially in augmented areas. Implants with a moderately rough surface exhibited better bone-implant contact compared to those with a machined surface.
CLINICAL ORAL IMPLANTS RESEARCH
(2023)
Article
Chemistry, Physical
V Sudhisha, N. Rajendran
Summary: The current research focuses on a hybrid material of zinc phosphate doped Poly(3,4-ethylenedioxythiophene PEDOT) electropolymerized on titania nanotube arrays (TNTA) for orthopaedic applications. Preliminary characterization studies were conducted to evaluate the material's morphology, composition, phase transformation, functional groups, and wettability. The material also exhibited excellent corrosion resistance, biocompatibility, and antibacterial properties.
SURFACES AND INTERFACES
(2023)
Review
Biotechnology & Applied Microbiology
Xiaoxuan Lu, Zichen Wu, Kehui Xu, Xiaowei Wang, Shuang Wang, Hua Qiu, Xiangyang Li, Jialong Chen
Summary: Titanium and its alloys are widely used in orthopedic and dental implants due to their stable chemical properties and good biocompatibility. However, issues such as aseptic loosening and peri-implant infection still exist. Recent advancements in surface modification have provided strategies to enhance the bio-function and anti-infection properties of titanium implants, aiming to improve the interaction between these devices and the local biological environment.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2021)
Article
Materials Science, Biomaterials
Huan Wang, Tian-Xia Zheng, Nuo-Ya Yang, Ying Li, Hong Sun, Wei Dong, Li-Fang Feng, Jiu-Peng Deng, Meng-Chun Qi
Summary: Sr/Ag-containing TiO2 microporous coatings were prepared on a Ti alloy surface using a single-step microarc oxidation technique. The coatings showed good cytocompatibility and biosafety in vitro, as well as strong osteogenic activity and long-term antibacterial capability. The coating's osteogenic and antibacterial effects were also confirmed in vivo. Overall, the Sr/Ag-containing TiO2 microporous coating is valuable for preventing periimplantitis and improving implant reosseointegration, and is therefore promising for long-term and high quality use of titanium implants.
JOURNAL OF MATERIALS CHEMISTRY B
(2023)
Article
Multidisciplinary Sciences
Kristian Kniha, Benita Hermanns-Sachweh, Faruk Al-Sibai, Reinhold Kneer, Stephan Christian Moehlhenrich, Marius Heitzer, Frank Hoelzle, Ali Modabber
Summary: The purpose of this rat study was to investigate the feasibility of temperature thresholds affecting bone contact at the surface of implants in vivo. The results showed that thermal necrosis should be used for implant removal in subsequent in vivo studies. The study found that temperatures ranging from 48°C to 50°C led to a decrease in the BIC ratio, with significant differences observed between the 50°C group and the control group. However, there were no significant variations within the cold temperatures.
SCIENTIFIC REPORTS
(2022)
Article
Materials Science, Multidisciplinary
Hongyan Tang, Qing Li, Min Li, Xuenan Gu, Chengkung Cheng, Yubo Fan
Summary: This study investigated the potential of a magnesium alloy with low combined addition of strontium and lanthanum for alveolar bone fixation screws. The alloy exhibited good mechanical properties, moderate degradation rate, and promoted osteogenesis. In addition, the alloy showed promising biocompatibility and osseointegration in the subgingival environment. These findings highlight the great potential of the Mg-Sr-La alloy for dental clinical applications.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Multidisciplinary Sciences
Rafael Coutinho Mello-Machado, Suelen Cristina Sartoretto, Jose Mauro Granjeiro, Jose De Albuquerque Calasans-Maia, Marcelo Jose Pinheiro Guedes de Uzeda, Carlos Fernando de Almeida Barros Mourao, Bruna Ghiraldini, Fabio Jose Barbosa Bezerra, Plinio Mendes Senna, Monica Diuana Calasans-Maia
Summary: The study demonstrates that the osseodensification technique allows for wider implant bed preparation to create healing chambers at the implant-bone interface without compromising primary stability and bone remodeling in low-density bone.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Physical
Wei Lu, Yinling Zhang, Taolei Wang
Summary: This paper investigates the merging mechanism of Mg-Zn and HA particles in Mg-Zn/HA composites prepared using powder metallurgy. The distribution of HA in the matrix is examined using SEM and micro-CT images, and the mechanical properties and biocompatibility of the composites are discussed in detail. The results highlight the importance of optimizing the HA content in Mg-Zn/HA composites for bone implants, with composites containing a moderate HA content showing the most promising characteristics.
Article
Electrochemistry
Rejane Maria P. da Silva, Javier Izquierdo, Mariana X. Milagre, Renato A. Antunes, Ricardo M. Souto, Isolda Costa
Summary: A novel potentiometric Al3+-ion selective microelectrode (ISME) using a neutral carrier morin as ionophore is developed for imaging local ion concentration distributions on aluminum alloy surfaces. The ISME is then applied in potentiometric operation for scanning electrochemical microscopy (SECM) to monitor reactive sites associated with aluminum dissolution on a specific alloy produced by the Friction Stir Welding (FSW) process. The results demonstrate that the Al3+-ISME can detect differences in local Al3+ concentrations between the base material and the coupled weld joint/heat affected zones (WJ/HAZ), providing chemical and spatial resolution for monitoring corrosion sites on aluminum alloy surfaces.
ELECTROCHIMICA ACTA
(2022)
Article
Biochemistry & Molecular Biology
Daniel Filotas, Javier Izquierdo, Bibiana M. Fernandez-Perez, Livia Nagy, Geza Nagy, Ricardo M. Souto
Summary: Microelectrochemical scanning techniques, such as SVET and SECM, can provide spatially resolved information on corrosion reactions. SVET allows the temporal evolution of corrosion reactions to be followed, but lacks chemical specificity. ISME probes can effectively monitor anodic sites and can be integrated with pH measurements.
Review
Materials Science, Multidisciplinary
Juan J. Santana, Javier Izquierdo, Ricardo M. Souto
Summary: Scanning Electrochemical Microscopy (SECM) is used to study and characterize thin surface films and coatings by collecting spatially- and chemically-resolved information on localized reactions. Various experimental procedures can be applied depending on the sensing of faradaic currents or concentration distributions resulting from the corrosion process. Quantitative analysis using the microelectrode (ME) signal allows for the identification of early stages of corrosion, monitoring of water and ion uptake, and detection of coating swelling.
Article
Agronomy
Elena Cristina Scutarasu, Camelia Elena Luchian, Ionel Bogdan Cioroiu, Lucia Carmen Trinca, Valeriu V. Cotea
Summary: This research focuses on the effect of enzymes on amino acid concentration during the fermentation of Feteasca regala and Sauvignon blanc wines. The results show that pectinases have a significant impact on the sensory characteristics of the wines, with Feteasca regala wines showing a greater response to pectinase treatment and Sauvignon blanc wines showing a higher response to beta-glycosides.
Article
Electrochemistry
Rejane Maria P. da Silva, Javier Izquierdo, Mariana X. Milagre, Joao Victor de S. Araujo, Renato A. Antunes, Ricardo M. Souto, Isolda Costa
Summary: This study characterized the development of heterogeneous electrochemical activity in the welded zones of an aluminum alloy and detected localized corrosion reactions in the near-surface deformed layer formed upon exposure to a chloride-containing solution.
ELECTROCHIMICA ACTA
(2022)
Article
Materials Science, Multidisciplinary
Rejane Maria P. da Silva, Mariana X. Milagre, Javier Izquierdo, Abenchara Maria Betancor-Abreu, Leandro A. de Oliveira, Joao Victor de S. Araujo, Renato A. Antunes, Ricardo M. Souto, Isolda Costa
Summary: This study investigated the effects of surface finishing on the corrosion behavior and electrochemical activity of AA2098-T351 (Al-Cu-Li alloy) by analyzing the correlation between surface chemistry, microstructure, and electrochemical activity. The results showed that the polished surface condition exhibited higher electrochemical activity and greater susceptibility to severe localized corrosion compared to the as-received one.
MATERIALS CHARACTERIZATION
(2022)
Review
Metallurgy & Metallurgical Engineering
Mara Cristina Lopes de Oliveira, Rejane Maria Pereira da Silva, Ricardo M. Souto, Renato Altobelli Antunes
Summary: The study of corrosion of magnesium and its alloys has become a hot topic in the applications of lightweight structural materials. Protective coatings have been developed to slow down metal dissolution due to the high electrochemical activity of bare magnesium surfaces. New instruments and techniques have been developed to study the local corrosion processes that occur in magnesium and its alloys, including bare surfaces and coated surfaces. Scanning microelectrochemical techniques provide information about the local electrochemical activity of metallic surfaces. This review examines the applications of these techniques in corrosion studies of magnesium and its alloys, evaluates corrosion mechanisms, barrier properties of coatings, and active corrosion behavior of self-healing coatings, and discusses limitations and future developments in this area.
JOURNAL OF MAGNESIUM AND ALLOYS
(2022)
Article
Chemistry, Physical
Juan J. Santana, Natalia Rodriguez-Brito, Concepcion Blanco-Penalver, Vicente F. Mena, Ricardo M. Souto
Summary: This study evaluates the properties of concrete modified with natural pozzolans (NP) as a replacement for cement or superfine aggregates. The resulting concrete mixtures, which incorporate quarry and tuff pozzolans, were compared to reference batches. The tests examined a range of properties including pozzolanic activity, durability, compressive strength, and chloride penetration. The results show that concrete modified with pozzolans exhibits good performance across these parameters.
Article
Agronomy
Elena Cristina Scutarasu, Camelia Elena Luchian, Laurian Vlase, Katalin Nagy, Lucia Cintia Colibaba, Lucia Carmen Trinca, Valeriu V. V. Cotea
Summary: This paper evaluates the impact of enzymes on the aroma profile of Feteasca regala and Sauvignon blanc wines before alcoholic fermentation. The results show that enzymes have a significant influence on the aroma richness of wines, and samples treated with pectinases have lower levels of negative sensory descriptors.
Article
Materials Science, Multidisciplinary
Andrea Abreu-Garcia, Ricardo M. Souto, Javier Izquierdo
Summary: This study investigates the applicability of Ti6Al7Nb as a more biocompatible alternative for bone and dental implants. The corrosion resistance and electrochemical inertness of Ti6Al7Nb biomaterial were characterized using various electrochemical methods. The results support the use of Ti6Al7Nb as an efficient alternative to Ti6Al4V for biomaterial applications.
Review
Food Science & Technology
Elena Cristina Scutarasu, Lucia Carmen Trinca
Summary: The expansion of industries and intensive agriculture have led to increased levels of heavy metals in the environment, posing potential risks to human health. Despite several available methods for removing heavy metals, most of them are expensive and difficult to perform. This review provides an overview of the presence of heavy metals in various food sources and highlights the current global situation.
Article
Materials Science, Multidisciplinary
Dzevad K. Kozlica, Javier Izquierdo, Ricardo M. Souto, Ingrid Milosev
Summary: The scanning vibrating electrode technique was used to monitor the electrochemical activity on aluminum alloy 2024-T3 in aggressive NaCl solutions with and without corrosion inhibitors. The inhibitor MBI was effective in preventing pitting corrosion, even without a reservoir of MBI. In contrast, local corrosion was observed when the solution contained the inhibitor OPA. Ex situ analysis revealed that MBI reduced the dissolution rate and oxygen reduction rate by forming an insoluble complex compound on the partially dealloyed particles.
NPJ MATERIALS DEGRADATION
(2023)
Article
Pharmacology & Pharmacy
Carmen Solcan, Bogdan Gabriel Slencu, Lucia Carmen Trinca, Iuliana Motrescu, Adriana Petrovici, Gheorghe Solcan
Summary: This study assessed the effects of sodium selenite coexposure on testicular injuries induced by cadmium and lead in rats. Coexposure to selenium partially alleviated testicular damage, reduced expression of apoptosis-related proteins, and decreased accumulation of cadmium and lead.
Article
Materials Science, Multidisciplinary
Abdelilah Asserghine, Daniel Filotas, Livia Nagy, Ricardo M. Souto, Geza Nagy
Summary: Titanium and its alloys have been widely used in clinical applications due to their excellent biocompatibility and chemical stability. Recent research has shown the need for further optimization, despite their ability to achieve passive state quickly and maintain stability in physiological environments.
NPJ MATERIALS DEGRADATION
(2022)
Article
Materials Science, Paper & Wood
Elena Ungureanu, Doina C. Jitareanu, Alina E. Trofin, Maria E. Fortuna, Ovidiu C. Ungureanu, Adina M. Ariton, Lucia C. Trinca, Stejarel Brezuleanu, Valentin Popa
Summary: This study investigates the adsorption capacity of chemically unmodified Sarkanda grass lignin for As(III) and tests various experimental parameters. The results suggest that chemically unmodified Sarkanda grass lignin has the potential as an alternative adsorbent for water remediation, with practical applicability and good adsorption performance.
CELLULOSE CHEMISTRY AND TECHNOLOGY
(2022)
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)
