keyword
MENU ▼
Read by QxMD icon Read
search

Bioactive glass

keyword
https://www.readbyqxmd.com/read/28643515/structures-of-degradation-products-and-degradation-pathways-of-aflatoxin-b1-by-high-voltage-atmospheric-cold-plasma-hvacp-treatment
#1
Hu Shi, Bruce R Cooper, Richard L Stroshine, Klein E Ileleji, Kevin Keener
High voltage atmospheric cold plasma (HVACP) is a novel non-thermal decontamination technology that has potential for use in the food industry. In this study, HVACP was applied to treat pure aflatoxin B1 (AFB1) powder on a glass slide. AFB1 was degraded by 76% using a 5 min HVACP treatment in air having 40% relative humidity. The degradation products of AFB1 were separated and their molecular formulas were elucidated using liquid chromatography time of flight mass spectrometry (HPLC-TOF MS). Six main degradation products were observed...
June 23, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28642057/novel-multifunctional-dental-cement-to-prevent-enamel-demineralization-near-orthodontic-brackets
#2
Yansong Ma, Ning Zhang, Michael D Weir, Yuxing Bai, Hockin H K Xu
OBJECTIVES: White spot lesions due to biofilm acid-induced enamel demineralization are prevalent in orthodontic treatments. The aim of this study was to develop a novel bioactive multifunctional cement with protein-repellent, antibacterial and remineralizing capabilities, and investigate the effects on enamel hardness and lesion depth in vitro for the first time. MATERIALS AND METHODS: 2-Methacryloyloxyethyl phosphorylcholine (MPC), dimethylaminohexadecyl methacrylate (DMAHDM), and nanoparticles of amorphous calcium phosphate (NACP) were incorporated into a resin-modified glass ionomer (RMGI)...
June 19, 2017: Journal of Dentistry
https://www.readbyqxmd.com/read/28629020/a-comparative-in-vivo-evaluation-of-bioactive-glasses-and-bioactive-glass-based-composites-for-bone-tissue-repair
#3
Devis Bellucci, Alexandre Anesi, Roberta Salvatori, Luigi Chiarini, Valeria Cannillo
In this work a set of novel materials for bone tissue regeneration have been tested in vivo in an animal model. In fact, despite many studies have been devoted to amorphous 45S5 Bioglass®, there is lack in the literature of works aimed to study the in vivo performance of heat-treated - and thus partially crystallized - 45S5. As widely reported, crystallization limits the bioactivity of 45S5 and is the main reason that prevents a broader use of this material. Thus, in the present work, a recently developed bioactive glass (BG_Ca/Mix) is tested, since previous investigations demonstrated that BG_Ca/Mix is particularly promising by virtue of both its high bioactivity and lower tendency to crystallize with respect to 45S5...
October 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28624656/strontium-and-cobalt-substituted-bioactive-glasses-seeded-with-human-umbilical-cord-perivascular-cells-to-promote-bone-regeneration-via-enhanced-osteogenic-and-angiogenic-activities
#4
Saeid Kargozar, Nasrin Lotfibakhshaiesh, Jafar Ai, Masoud Mozafari, Peiman Brouki Milan, Sepideh Hamzehlou, Mahmoud Barati, Francesco Baino, Robert G Hill, Mohammad Taghi Joghataei
Designing and developing new biomaterials to accelerate bone healing are currently under progress. In this study, we attempted to promote osteogenesis using strontium- and cobalt- substituted bioactive glasses (BGs) seeded with human umbilical cord perivascular cells (HUCPVCs) in a critical size defect in the distal femur of rabbit animal model. The BG particles were successfully synthesized in the form of granules using the melt-derived route. After being isolated, HUCPVCs were expanded and then characterized to use during in vitro and in vivo procedures...
June 14, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/28622750/preparation-and-in%C3%A2-vivo-evaluation-of-a-silicate-based-composite-bone-cement
#5
Bing Ma, Zhiguang Huan, Chen Xu, Nan Ma, Haibo Zhu, Jipin Zhong, Jiang Chang
Silicate-based cements have been developed as a class of bioactive and biodegradable bone cements owing to their good in vitro bioactivity and ability to dissolve in a simulated body fluid. Until recently, however, the in vivo evidence of their ability to support bone regeneration is still scarce. In the present study, a pilot in vivo evaluation of a silicate-based composite bone cement (CSC) was carried out in a rabbit femur defect model. The cement was composed of tricalcium silicate, 45S5 bioglass and calcium sulfate, and the self-setting properties of the material were established...
January 1, 2017: Journal of Biomaterials Applications
https://www.readbyqxmd.com/read/28620229/novel-bioactive-glass-based-injectable-bone-cement-with-improved-osteoinductivity-and-its-in-vivo-evaluation
#6
Tengjiao Zhu, Huihui Ren, Ailing Li, Bingchuan Liu, Caiyun Cui, Yanmei Dong, Yun Tian, Dong Qiu
Recently, more and more attention has been paid to the development of a new generation of injectable bone cements that are bioactive, biodegradable and are able to have appropriate mechanical properties for treatment of vertebral compression fractures (VCFs). In this study, a novel PSC/CS composite cement with high content of PSC (a phytic acid-derived bioactive glass) was prepared and evaluated in both vitro and vivo. The PSC/CS cement showed excellent injectability, good resistance to disintegration, radiopacity and suitable mechanical properties...
June 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28618977/sacrificial-template-method-for-the-synthesis-of-three-dimensional-nanofibrous-58s-bioglass-scaffold-and-its-in%C3%A2-vitro-bioactivity-and-cell-responses
#7
Honglin Luo, Yang Zhang, Gen Li, Junpin Tu, Zhiwei Yang, Guangyao Xiong, Zheren Wang, Yuan Huang, Yizao Wan
Three-dimensional nanofibrous scaffolds that morphologically mimic natural extracellular matrices hold great promises in tissue engineering and regenerative medicine due to their increased cell attachment and differentiation compared with block structure. In this work, for the first time, three-dimensional porous nanofibrous 58S bioglass scaffolds have been fabricated using a sacrificial template method. During the process, a natural three-dimensional nanofibrous bacterial cellulose was used as the sacrificial template on which precursor 58S glass was deposited via a sol-gel route...
January 1, 2017: Journal of Biomaterials Applications
https://www.readbyqxmd.com/read/28615491/enhanced-osteointegration-of-poly-methylmethacrylate-bone-cements-by-incorporating-strontium-containing-borate-bioactive-glass
#8
Xu Cui, Chengcheng Huang, Meng Zhang, Changshun Ruan, Songlin Peng, Li Li, Wenlong Liu, Ting Wang, Bing Li, Wenhai Huang, Mohamed N Rahaman, William W Lu, Haobo Pan
Although poly(methylmethacrylate) (PMMA) cements are widely used in orthopaedics, they have numerous drawbacks. This study aimed to improve their bioactivity and osseointegration by incorporating strontium-containing borate bioactive glass (SrBG) as the reinforcement phase and bioactive filler of PMMA cement. The prepared SrBG/PMMA composite cements showed significantly decreased polymerization temperature when compared with PMMA and retained properties of appropriate setting time and high mechanical strength...
June 2017: Journal of the Royal Society, Interface
https://www.readbyqxmd.com/read/28614968/putty-like-bone-fillers-based-on-cap-ceramics-or-biosilicate%C3%A2-combined-with-carboxymethylcellulose-characterization-optimization-and-evaluation
#9
Paulo R Gabbai-Armelin, Ana Cm Renno, Murilo C Crovace, Angela Mp Magri, Edgar D Zanotto, Oscar Peitl, Sander Cg Leeuwenburgh, John A Jansen, Jeroen Jjp van den Beucken
Calcium phosphates and bioactive glass ceramics have been considered promising biomaterials for use in surgeries. However, their moldability should be further enhanced. We here thereby report the handling, physicochemical features, and morphological characteristics of formulations consisting of carboxymethylcellulose-glycerol and hydroxyapatite-tricalcium phosphate or Biosilicate® particles. We hypothesized that combining either material with carboxymethylcellulose-glycerol would improve handling properties, retaining their bioactivity...
January 1, 2017: Journal of Biomaterials Applications
https://www.readbyqxmd.com/read/28608398/histomorphometric-and-immunohistochemical-assessment-of-runx2-and-vegf-of-biogran%C3%A2-and-autogenous-bone-graft-in-human-maxillary-sinus-bone-augmentation-a-prospective-and-randomized-study
#10
Rodrigo Dos Santos Pereira, Juliana Dreyer Menezes, João Paulo Bonardi, Geraldo Luiz Griza, Roberta Okamoto, Eduardo Hochuli-Vieira
BACKGROUND: Few studies have been conducted to assess new bone formation using Biogran, a bioactive glass, in maxillary sinus bone augmentation through a prospective and randomized evaluation. Moreover, there are no studies that evaluate cellular behavior by immunohistochemical assessment for osteoblastic and vascular activity during bone repair. PURPOSE: The aim of this study is to compare new bone formation and cellular behavior with Biogran alone, a 1:1 combination of Biogran and autogenous bone graft, and autogenous bone graft alone in human maxillary sinuses...
June 13, 2017: Clinical Implant Dentistry and related Research
https://www.readbyqxmd.com/read/28589920/systematic-evaluation-of-the-osteogenic-capacity-of-low-melting-bioactive-glass-reinforced-45s5-bioglass-porous-scaffolds-in-rabbit-femoral-defects
#11
Lei Zhang, Xiurong Ke, Lingzhi Lin, Jun Xiao, Xianyan Yang, Juncheng Wang, Guojing Yang, Sanzhong Xu, Zhongru Gou, Zhanjun Shi
Due to the low strength and high brittleness of 45S5 Bioglass(®), it is still a great challenge for the three-dimensional porous 45S5 Bioglass(®) to treat mechanically required loaded bone defects. Therefore, 45S5 Bioglass(®)-derived bioactive glass-ceramic (BGC) porous scaffolds were fabricated at a low temperature sintering condition with and without the addition of 4% low-melting ZnO/B2O3 (ZB) bioactive glass as a reinforcing agent and using 350- or 500 μm paraffin microspheres as a porogen. The pore structure characterization for the scaffolds indicated that the scaffolds containing 4% ZB had very good macroporous structures of ∼313 and ∼448 μm in pore size and over 70% porosity with appreciable strength (>15 MPa), which was about four times higher than that those manufactured without ZB and with 350 μm porogen scaffolds...
June 7, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28586050/inhibitory-capacity-of-rhus-coriaria-l-extract-and-its-major-component-methyl-gallate-on-streptococcus-mutans-biofilm-formation-by-optical-profilometry-potential-applications-for-oral-health
#12
Tomas Kacergius, Saleh Abu-Lafi, Agne Kirkliauskiene, Vika Gabe, Azmi Adawi, Mahmoud Rayan, Mutaz Qutob, Rimantas Stukas, Algirdas Utkus, Mouhammad Zeidan, Anwar Rayan
Streptococcus mutans (S. mutans) bacterium is the most well recognized pathogen involved in pathogenesis of dental caries. Its virulence arises from its ability to produce a biofilm and acidogenicity, causing tooth decay. Discovery of natural products capable to inhibit biofilm formation is of high importance for developing health care products. To the best of our knowledge, in all previous scientific reports, a colorimetric assay was applied to test the effect of sumac and methyl gallate (MG) on S. mutans adherence...
July 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28580716/preparation-and-characterization-of-injectable-pmma-strontium-substituted-bioactive-glass-bone-cement-composites
#13
I Goñi, R Rodríguez, I García-Arnáez, J Parra, M Gurruchaga
In most minimally-invasive procedures used to address severe pain arising from compression fractures of the vertebral bodies, such as percutaneous vertebroplasty (PVP), a poly(methyl methacrylate) (PMMA) bone cement is used. Shortcomings of this type of cement, such as high exotherm temperature and lack of bioactivity, are well known. We prepared different formulations of a composite bone cement, whose solid constituents consisted of PMMA beads and particles of a bioactive glass (BG), where 0-20%(w/w) of the calcium component was substituted by strontium...
June 5, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28575950/in-vitro-proliferation-and-differentiation-of-human-bone-marrow-mesenchymal-stem-cells-into-osteoblasts-on-nanocomposite-scaffolds-based-on-bioactive-glass-64sio2-31cao-5p2o5-poly-l-lactic-acid-nanofibers-fabricated-by-electrospinning-method
#14
M Shamsi, M Karimi, M Ghollasi, N Nezafati, M Shahrousvand, M Kamali, A Salimi
Electrospinning method was employed for fabrication of SiO2-CaO-P2O5 bioactive glass (BG) nanofibers, poly-l-lactic acid (PLLA) nanofibers and nanocomposite scaffolds fabricated from as-prepared nanofibers. Characterization of the prepared nanofibers and scaffolds by XRD, FTIR, and SEM techniques revealed the formation of nanofibers with mean diameter of about 500nm and fully fibrous scaffolds with porous structure and interconnected pores. The growth, viability and proliferation of cultured human bone marrow mesenchymal stem cells in the fabricated nanofibers and bioactive glass-poly-l-lactic acid (BG-PLLA) nanocomposite scaffolds were studied using various biological assays including MTT, ALP activity, calcium deposit content, Alizarin red staining, and RT-PCR test...
September 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28575949/a-highly-bioactive-poly-amido-amine-70s30c-bioactive-glass-hybrid-with-photoluminescent-and-antimicrobial-properties-for-bone-regeneration
#15
Fakhraddin Akbari Dourbash, Parvin Alizadeh, Shahram Nazari, Alireza Farasat
The field of tissue engineering constantly calls for novel biomaterials that possess intrinsically multifunctional properties such as bioactivity, bioimaging ability and antibacterial properties. In this paper, poly (amido amine) generation 5/bioactive glass inorganic-organic hybrids have been developed through direct hybridization by 3-glycidoxypropyltrimethoxysilane (GPTMS) as coupling agent. Results indicated that the degree of covalent coupling by GPTMS and the weight percent of inorganic and organic constituents highly influence hybrids properties...
September 1, 2017: Materials Science & Engineering. C, Materials for Biological Applications
https://www.readbyqxmd.com/read/28573977/bioactive-glass-ceramic-with-two-crystalline-phases-bios-2p-for-bone-tissue-engineering
#16
Emanuela Ferraz, Gileade Freitas, Murilo Crovace, Oscar Peitl, Edgar Zanotto, Paulo Tambasco de Oliveira, Marcio Mateus Beloti, Adalberto Rosa
We aimed to evaluate the in vitro osteogenic and osteoinductive potentials of BioS-2P and its ability to promote in vivo bone repair. To investigate osteogenic potential, UMR-106 osteoblastic cells were cultured on BioS-2P and Bioglass 45S5 discs in osteogenic medium. The osteoinductive potential was evaluated using mesenchymal stem cells (MSCs) cultured on BioS-2P, Bioglass 45S5 and polystyrene in non-osteogenic medium. Rat bone calvarial defects were implanted with BioS-2P scaffolds alone or seeded with MSCs...
June 2, 2017: Biomedical Materials
https://www.readbyqxmd.com/read/28571281/assessment-of-enamel-remineralisation-after-treatment-with-four-different-remineralising-agents-a-scanning-electron-microscopy-sem-study
#17
Renita Soares, Ida De Noronha De Ataide, Marina Fernandes, Rajan Lambor
INTRODUCTION: Decades of research has helped to increase our knowledge of dental caries and reduce its prevalence. However, according to World Oral Health report, dental caries still remains a major dental disease. Fluoride therapy has been utilised in a big way to halt caries progression, but has been met with limitations. This has paved the way for the development of newer preventive agents that can function as an adjunct to fluoride or independent of it. AIM: The purpose of the present study was to evaluate the ability of Casein Phosphopeptide-Amorphous Calcium Phosphate Fluoride (CPP ACPF), Bioactive Glass (BAG), fluoride enhanced Hydroxyapatite (HA) gel and self-assembling peptide P11-4 to remineralise artificial carious lesions in enamel in vitro using a 30 day pH cycling model through surface microhardness analysis and SEM...
April 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/28571113/comparison-of-the-effects-of-45s5-and-1393-bioactive-glass-microparticles-on-hmsc-behavior
#18
Taimoor H Qazi, Shahzad Hafeez, Jochen Schmidt, Georg N Duda, Aldo R Boccaccini, Evi Lippens
Bioactive glasses (BAGs) are highly interesting materials for bone regeneration applications in orthopedic and dental defects. It is quite well known that ionic release from BAGs influences cell behavior and function. Mindful of the clinical scenario, we hypothesized that local cell populations might additionally physically interact with the implanted BAG particles and respond differently than to just the ionic stimuli. We therefore studied the biological effect of two BAG types (45S5 and 1393) applied to human mesenchymal stromal cells (hMSCs) in three distinct presentation modes: (a) direct contact; and to dissolution products in (b) 2D, and (c) 3D culture...
June 1, 2017: Journal of Biomedical Materials Research. Part A
https://www.readbyqxmd.com/read/28570023/strength-toughness-and-reliability-of-a-porous-glass-biopolymer-composite-scaffold
#19
Qiang Fu, Weitao Jia, Grace Y Lau, Antoni P Tomsia
Development of bioactive glass and ceramic scaffolds intended for the reconstruction of large segmental bone defects remains a challenge for materials science due to the complexities involved in clinical implantation, bone-implant reaction, implant degradation and the multiple loading modes the implants subjected to. A comprehensive evaluation of the mechanical properties of inorganic scaffolds and exploration of new ways to toughen brittle constructs are critical prior to their successful application in loaded sites...
June 1, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28567140/bioactive-glass-in-endodontic-therapy-and-associated-microsurgery
#20
REVIEW
Andrea Corrado Profeta, Gian Marco Prucher
INTRODUCTION: Bioactive-glass (B-G) has become a valuable adjunct to promote hard-tissue healing in many clinical situations and is of particular interest for endodontic care because of its biocompatibility, regenerative and antimicrobial properties as well as chemical composition that closely resembles the mineral make-up of human bone and dentine. THERAPY: Initial studies suggested that bacteria-tight sealing within the entire root canal system can be achieved and successfully maintained after orthograde treatment...
2017: Open Dentistry Journal
keyword
keyword
102358
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"