Showing 1-30 of 33 results for "372668"
S S Salek et al.
Applied microbiology and biotechnology, 97(6), 2743-2752 (2012-11-29)
Silicate minerals can be a source of calcium and alkalinity, enabling CO2 sequestration in the form of carbonates. For this to occur, the mineral needs to be first dissolved in an acidifying process such as the biological process of anaerobic...
Bobo Yu et al.
Langmuir : the ACS journal of surfaces and colloids, 28(50), 17465-17476 (2012-11-23)
The aim was to determine the most effective calcium precursor for synthesis of sol-gel hybrids and for improving homogeneity of sol-gel bioactive glasses. Sol-gel derived bioactive calcium silicate glasses are one of the most promising materials for bone regeneration. Inorganic/organic...
Ming-You Shie et al.
Biomaterials, 34(28), 6589-6606 (2013-06-19)
Cell attachment, proliferation and differentiation on different materials depend largely on the surface properties of the materials. This study sheds light on the mechanism by which the modulation of the chemical composition of calcium silicate cements with different Si/Ca molar...
Emma C Goethals et al.
Langmuir : the ACS journal of surfaces and colloids, 29(2), 658-666 (2012-10-20)
Polymer nanocapsules have gained an important place as drug delivery vehicles for a myriad of biomedical applications. However, the influence of nanocapsule size, wall thickness, and porosity toward controlling the drug delivery efficiency of nanocapsular systems is not well understood....
Brandy J Johnson et al.
PloS one, 7(11), e50356-e50356 (2012-12-12)
The potential for encapsulating RNA within tunable, semi-permeable structures for storage and transportation purposes offers an interesting approach to the reduction of stringent storage requirements that often hamper the field application of genetic analysis methods. In this study, we assessed...
Rania Hassan Fahmy
AAPS PharmSciTech, 13(3), 990-1004 (2012-07-19)
Multiparticulate floating drug delivery systems have proven potential as controlled-release gastroretentive drug delivery systems that avoid the "all or none" gastric emptying nature of single-unit floating dosage forms. An objective of the presence investigation was to develop calcium silicate (CaSi)/calcium...
Georgios Kotsakis et al.
The Journal of oral implantology, 40(6), 690-698 (2014-12-17)
It has been documented that after every extraction of one or more teeth, the alveolar bone of the respective region undergoes resorption and atrophy. Therefore, ridge preservation techniques are often employed after tooth extraction to limit this phenomenon. The benefits...
Greg H Rau et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(25), 10095-10100 (2013-06-05)
We experimentally demonstrate the direct coupling of silicate mineral dissolution with saline water electrolysis and H2 production to effect significant air CO2 absorption, chemical conversion, and storage in solution. In particular, we observed as much as a 10(5)-fold increase in...
Xuanyong Liu et al.
Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapie, 62(8), 526-529 (2008-09-06)
CaO-SiO2 based ceramics have been regarded as potential candidates for artificial bone due to their excellent bone bioactivity and biocompatibility. However, they cannot be used as implants under a heavy load because of their poor mechanical properties, in particular low...
Lang Zhao et al.
Bio-medical materials and engineering, 22(5), 289-300 (2012-10-02)
Ideal scaffolds for bone tissue engineering require 3D interconnected porous structures, enough mechanical strength for hand of treatment as well as proper bioactivity and biodegradability. Calcium silicate (CaSiO3, CS) scaffolds have been studied for bone tissue engineering application due to...
Bing-Qiang Lu et al.
ACS applied materials & interfaces, 4(12), 6969-6974 (2012-12-06)
The synthesis of the mesoporous nanocomposites consisting of magnetic iron oxide nanoparticles and calcium silicate with uniform size has been a challenge, although they are the ideal potential agent for medical diagnosis and therapy. In this work, the core/shell structured...
Helder A Santos et al.
Current pharmaceutical biotechnology, 14(10), 926-938 (2014-01-01)
Advanced drug delivery formulations are presently recognized as promising tools for overcoming the adverse physicochemical properties of conventional drug molecules, such as poor water solubility, which often leads to poor drug bioavailability. Oral drug delivery is considered as the easiest...
Norimasa Washizawa et al.
Dental materials journal, 31(4), 629-634 (2012-08-07)
The purpose of this study was to synthesize biomaterials from daily dental waste. Since alginate impression material contains silica and calcium salts, we aimed to synthesize calcium silicate cement from alginate impression material. Gypsum-based investment material was also investigated as...
Hongjie Hu et al.
Colloids and surfaces. B, Biointerfaces, 101, 83-90 (2012-07-17)
To improve the bioactivity and cytocompatibility of biomedical titanium dioxide coating, many efforts have been made to modify its surface composition and topography. Meanwhile, CaSiO(3) was commonly investigated as coating material on titanium implants for fast fixation and firm implant-bone...
Burak Sağsen et al.
Dental materials journal, 31(4), 528-532 (2012-08-07)
The aim of this study was to compare the fracture resistance of roots filled with gutta percha (GP) and different root canal sealers.Fifty-five human maxillary central incisors were selected and randomly divided into three experimental groups (Groups 1-3) and two...
Haiyan Li et al.
Acta biomaterialia, 9(2), 5379-5389 (2012-10-24)
Angiogenesis is critical for bone tissue engineering. Stimulating proangiogenesis in an engineered bone construct using bioglass or bioceramic is now attracting much attention. However, the specific ion that plays important roles in the stimulation of proangiogenesis has not yet been...
Mark B Green et al.
Proceedings of the National Academy of Sciences of the United States of America, 110(15), 5999-6003 (2013-03-27)
Acid deposition during the 20th century caused widespread depletion of available soil calcium (Ca) throughout much of the industrialized world. To better understand how forest ecosystems respond to changes in a component of acidification stress, an 11.8-ha watershed was amended...
J Idaszek et al.
Materials science & engineering. C, Materials for biological applications, 33(7), 4352-4360 (2013-08-06)
Biodegradable materials, which are currently available for bone tissue regeneration, still have limitations regarding their degradation rate, mechanical stability and/or biological response. Thus, a novel generation of materials for bioactive bone scaffolds is needed that triggers hydroxyapatite formation and can...
Luis Meseguer-Olmo et al.
Journal of materials science. Materials in medicine, 23(12), 3003-3014 (2012-08-21)
This work describes the evaluation of three ceramic materials as potential osteogenic substrate for bone tissue engineering. The capacity of adult human mesenchymal stem cells cultured under experimental conditions known to adhere, proliferate and differentiate into osteoblasts was studied. Two...
Han Guo et al.
International journal of nanomedicine, 7, 3613-3624 (2012-08-01)
The purpose of this study was to synthesize a self-setting bioactive cement by incorporation of wollastonite nanofibers (WNFs) into calcium phosphate cement (CPC). The composition, morphology, setting time, compressive strength, hydrophilicity, and degradation of WNF-doped CPC (wnf-CPC) were investigated. Scanning...
Wenzhong Wang et al.
Materials science & engineering. C, Materials for biological applications, 33(4), 2288-2293 (2013-03-19)
We described an environmentally friendly and facile NaCl nonaqueous ionic liquid route for the first time to synthesize β-CaSiO3 nanowires. β-CaSiO3 nanowires were prepared by annealing precursor calcium silicate hydrate (CSH) nanostructures in NaCl nonaqueous ionic liquid, in which the...
Aude Lacourt et al.
American journal of respiratory and critical care medicine, 187(9), 977-982 (2013-03-09)
Occupational coexposure to asbestos and other fibers or particles could modify the carcinogenicity of asbestos with regard to pleural mesothelioma. To estimate associations between pleural mesothelioma and occupational mineral wool and silica exposure and to study the impact of occupational...
X V Tran et al.
Journal of dental research, 91(12), 1166-1171 (2012-09-18)
In cases of pulp injury, capping materials are used to enhance tertiary dentin formation; Ca(OH)(2) and MTA are the current gold standards. The aim of this study was to evaluate the capacity of a new calcium-silicate-based restorative cement to induce...
Philip S Salmon et al.
Physical chemistry chemical physics : PCCP, 15(37), 15286-15308 (2013-08-14)
The structure of several network-forming liquids and glasses is considered, where a focus is placed on the detailed information that is made available by using the method of neutron diffraction with isotope substitution (NDIS). In the case of binary network...
Nana Wang et al.
Materials science & engineering. C, Materials for biological applications, 33(4), 2294-2301 (2013-03-19)
A key challenge in tissue engineering is the construction of a scaffold with adequate properties which would mimic extracellular matrix (ECM) to induce the cells' efficient adhesion, proliferation and proper differentiation. Novel β-Ca2SiO4/PHBV composite scaffolds were fabricated by integrating β-Ca2SiO4...
Raquel Osorio et al.
Journal of endodontics, 38(9), 1227-1232 (2012-08-16)
Collagen dentin matrix may represent a suitable scaffold to be remineralized in the presence of bioactive materials. The purpose of this study was to determine if experimental resin cements containing bioactive fillers may modulate matrix metalloproteinase-mediated collagen degradation of etched...
Li Yuan et al.
Langmuir : the ACS journal of surfaces and colloids, 29(2), 734-743 (2012-12-21)
A novel controlled drug-delivery system (CDDS) based on fluorescent mesoporous silica nanoparticles (FMSN) covalently linked with paclitaxel (PTX) via a disulfide linker was designed and characterized. A PTX prodrug based on a disulfide linker was synthesized, and its drug-delivery mechanism...
Utilizing bioactive liners. Stimulating post-traumatic dentin formation.
Jack D Griffin
Dentistry today, 31(10), 132-132 (2012-11-20)
Chen Wang et al.
Biomaterials, 34(1), 64-77 (2012-10-17)
As a potential bioactive material, β-calcium silicate (β-CS) has attracted particular attention in the field of bone regeneration. In this study, porous β-CS/Poly-D,L-Lactide-Glycolide (PDLGA) composite scaffolds were developed with the goals of controlling the degradation rate and improving the mechanical...
Yuandong Dou et al.
Acta biomaterialia, 8(11), 4139-4150 (2012-07-21)
How to accurately control the microstructure of bioactive inorganic/organic nanocomposites still remains a significant challenge, which is of great importance in influencing their mechanical strength and biological properties. In this study, using a combined method of electrospinning and hot press...

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