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Bodhisatwa, Das - - 2012
Gold quantum clusters (Au-QCs) are mainly subnano sized structures. They are extremely important for optoelectronic and biomedical applications because of their luminescence property. It has been observed that the luminescence properties of the quantum clusters are readily quenched by most of the heavy metal solutions. Present study reports a quantitative ...
Balakrishnan, Biji - - 2012
The release profiles and anti-bacterial properties of gentamycin (GEN) incorporated into in situ forming hydrogels for application as an in situ forming wound or burn dressing was investigated. Hydrogels were prepared by mixing gentamycin (GEN) with either a solution of the oxidized alginate in 0.1 M borax or a solution ...
Bhat, Kalambettu - - 2012
Composite membranes of sulphonated polyether ether ketone/polymethyl methacrylate/silica and chitosan /polyvinyl alcohol/ silica were fabricated by sol-gel technique and evaluated for medical applications. The SEM images showed that the surface homogeneity of the membranes was dependent on the concentration and blending between the two constituent polymers. In all the composite ...
Ramesh, T.R. - - 2012
Zirconia is one of the most promising restorative biomaterial, because it has very favorable mechanical and chemical properties suitable for medical application. Zirconia ceramics (Zr[O.sub.2]) are becoming a prevalent biomaterial in dentistry and dental implantology. Zirconia stabilized with [Y.sub.2][O.sub.3] has the best properties for these applications. Zirconia biocompatibility had been ...
Chugh, Vinay - - 2012
The concept of self-ligating systems is not new, with the first designs dating back to the 1930's. Since then, numerous concepts have appeared especially since the 1970's. Both clinician and patient benefit from reduced chair side time and faster treatment progress. Each inventor of self-ligating brackets has found that they ...
Balamurugan, A. - - 2012
The present study investigates the effect of sol-gel derived Si[O.sub.2]-CaO-[P.sub.2][O.sub.5]-[K.sub.2]O-MgO bioglass system in contact with human monocytes. The ionic products released from the glass particles and their intracellular concentrations in monocytes, were analysed. Monocytes along with polynuclear cells play a key role in the host defence mechanisms due to their ...
Anjana, Vaman - - 2012
Bone substitutes should be biocompatible, biodegradable and must have sufficient mechanical properties to fill and restore bone defects. Hydroxyapaptite coated EVA and BGA are useful for cranioplastic surgery and bone scaffold application respectively. The present investigation was focused on the effect of Hydroxyapaptite coated EVA and BGA on lipid peroxidation, ...
Peters, Kirsten - - 2012
Shellac is used for decades as food additive and in pharmaceutical industry. Since characteristics of shellac are well known, we considered shellac as a coating for drug-eluting intravascular devices. Endothelial cells (EC) and smooth muscle cells (SMC) are important in arteriosclerotic progression, and both cell types come into direct contact ...
Persaud, Dharam - - 2012
In this study, an Atomic Force Microscopy (AFM) roughness analysis was performed on non-commercial Nitinol alloys with Electropolished (EP) and Magneto-Electropolished (MEP) surface treatments and commercially available stents by measuring Root-Mean-Square values, Average Roughness, and Surface Area values at various dimensional areas on the alloy surfaces, ranging from (800 x ...
Naghibzadeh, Majid - - 2012
Skin, the largest organ of the body mass, is constantly exposed to risk factors such as burns, wounds and singes. A rapid and timely treatment of severe skin damages is crucial for patients. Nanofibrous scaffolds with unique features such as high surface area to weight ratio, high porosity and good ...
Kabir, Sumaya - - 2012
Sodium doped hydroxyapatite (HA) (of different mol%) was calcined at four different temperatures for observing the sintering behavior and concentration effects. Doped and pure apatites were synthesized from waste egg shell as Ca precursor through precipitation method. The substitution limit was up to 8mol%. Atomic absorption (AAS) and UV spectrophotometric ...
Oberle-Kilic, Jennifer - - 2012
Micro-attenuated total reflectance Fourier transform infrared spectroscopy (micro-ATR FTIR) was used to investigate the chemical composition of biodegradable films produced from starch and starch: lignin in a 90:10 ratio. Preparation of the starch and lignin solutions followed that of Vengal & Srikumar [1] in which tensile strength of films was ...
Shuib, Solehuddin - - 2012
Finite element (FE) simulation has become increasingly important to analyze the behavior of the femoral bone when it is subjected to external loads. The aim of the present study was to validate FE simulation with experimental work using surface strain at the outer surface of the femur, and to subsequently, ...
Paul, Willi - - 2012
Polymeric cell seeded sponge scaffolds play a prominent role in supporting the regeneration of skin for burn patients. The three-dimensional scaffolds provide physical support and acts as an excellent matrix regulating cell growth, adhesion and differentiation. Natural macromolecule polymeric scaffolds from chitosan have advantages over synthetic polymers in that they ...
Kokkinos, Petros - - 2012
The osseointegration process of bone implants crucially depends on the interaction between osteoblasts and the topography of the implant surface. Core binding factor alpha 1 (Cbfa1) is an osteoblast specific transcription factor that regulates osteoblast differentiation and expression of genes necessary for the development of a mineralized phenotype. In this ...
Devika, D. - - 2012
The common problems like discomfort and loosening of the implant with the currently available pre-fabricated implants can be reduced by designing patient-specific implants. In this paper an attempt has been made to optimize the mechanical behaviour of tibia bone with patient-specific implant for proximal end (B1 type) fracture by performing ...
Dewangan, Rukmani - - 2012
The present study was carried out for in-vivo biocompatibility testing of cross-linked bladder acellular matrix graft (BAMG) with of 0.6% Glutaraldehyde(GA), 1% Hexamethylene diisocyanate (HMD), 1% 1, 4-butanediol diglycidyl ether (BDDGE) and 1% 1-ethyl-3-(3-dimethyl aminopropyl) carbodiimide (EDC) for 12, 24, 48 and 72 h duration at room temperature. The uncross-linked ...
Srivastava, Akanksha - - 2012
Alginate is an elastic irreversible hydrocolloid, widely used for recording the impressions of dentulous arches, impressions for making models for diagnostic purposes, and for duplication of casts. Today, their use far exceeds the use of all other impression materials in general dental practice because of their hydrophilicity, ability to record ...
Dhoble, Ashwin - - 2012
The bone mechanical properties have been the subject of the interest from last so many years. Bone being the biomechanical part of the human body it is of vital importance to the biomechanical engineer to know the bone mechanical properties for its analysis to study the failure aspects. It is ...
Paul, Willi - - 2011
Rasa chenduram and naga parpam preparations are widely utilized as therapeutic agents in Siddha medicine. However, in vitro biological evaluations of these preparations are essential along with the physicochemical characterization for present day standardization of metallic herbal preparations of Siddha and Ayurveda to meet the criteria that supports its worldwide ...
Dewangan, Rukmani - - 2011
In-vitro biocompatibility testing of bladder acellular matrix graft (BAMG) was carried out after cross-linking with 0.6% Glutaraldehyde (GA), 1% Hexamethylene diisocyanate (HMD), 1% 1,4-butanediol diglycidyl ether (BDDGE) and 1% 1-ethyl3- (3-dimethyl aminopropyl) carbodiimide (EDC) for 12, 24, 48 and 72 h duration at room temperature. The uncross-linked acellular bladder was ...
Patil, Basavaraj - - 2011
In the present study, novel wound dressing films derived from Tamarind seed polysaccharide (TSP) were fabricated by crosslinking with epichlorohydrin and evaluated for wound healing activity in albino rats. The required film properties for the successful wound dressings, such as film elongation (elasticity), tensile strength, water uptake and water vapor ...
Kabir, S.F. - - 2011
The present paper describes calcination of pure and Zn doped hydroxyapatite (HA) (of different mol %) at four different temperatures for observing the sintering behavior and concentration effects. Doped and un-doped apatites were synthesized from waste egg shell as Ca precursor through precipitation method. The substituting limit was up to ...
Majumdar, S. - - 2011
The main objective in relation to this study was development of an oral controlled release multiparticulate colon-specific formulation of Ketoprofen by Powder Layering Technology. The intention was to prepare a formulation, using a combination of polymers as excipients that allowed drug liberation by depending on the bacterial enzyme in colon ...
Biswas, Chhanda - - 2011
Interdisciplinary approaches for endo-perio combined lesion give us a successful outcome. Patient with non-vital tooth with massive bone loss and gingival recession defect have traditionally been located with various procedure. Recently guided tissue regeneration with collagen membrane has shown promising results particularly when demineralized freeze dried bone graft with collagen ...
Shammas, Mohammed - - 2011
A thing that is not understood often becomes the focus of mystery, fear, indifference or abject rejection. Color, although a part of nearly every human activity is one of those things that is poorly understood and shrouded by misconceptions. Much of the scientific literature on color is riddled with mathematical ...
Paul, Willi - - 2011
Graphene discovered as an exciting material for fundamental physics during 2004 is now poised for a wide range of nanotechnology applications. Its biomedical applications particularly on drug delivery and biosensor applications are limited. Although carbon is considered to be highly compatible to blood, nanomaterials' biosafety has caused more and more ...
Kobayashi, Masanori - - 2011
For severe meniscus injury patients with the future problem of degenerative change or osteoarthrosis (OA) in knee joint, we have newly developed a artficial meniscus using the uniaxial oriented compressive reinforced polyvinyl alcohol-hydrogel (PVA-H). In present study, the results up to six moths after animal operation to assess the use ...
Adak, M. - - 2011
Hydroxyapatite [Ca.sub.10][(P[O.sub.4]).sub.6][(OH).sub.2] is an important biomaterial and is the principal replacement inorganic constituent of bones and teeth. It is also used as the replacement of heart valves, hip joints and other implants in the human body. A novel procedure to produce porous hydroxyapatite from dead snail shells is reported. Dead ...
Gupta, Seema - - 2011
Laser dental care is possible in all of the disciplines of dentistry. The public has an expectation that their dentist should be up to date and wants the most modern, advanced care possible. The future of lasers in dentistry is promising, and new applications and procedures are being developed. The ...
Alla, Rama - - 2011
For centuries, clinicians have been attempting to replace missing teeth with suitable synthetic materials. Dental implants are fixtures that serve as replacements for the root of the missing natural tooth and becoming popular in the current day dental practice. Success or failure of the dental implant treatment is mainly based ...
Bahraminasab, Marjan - - 2011
As a step towards developing a biomaterial for femoral component of total knee replacement, the goals of this study were to introduce NiTi shape memory alloy as a promising material for orthopedic implant and to evaluate the effect of different material properties on contact behavior of the joint and stress ...
Kaur, Palwinder - - 2011
A promising biologic therapy, offering various applications in dentistry is the use of platelet rich-plasma (PRP). PRP has became an increasingly popular clinical tool as an alternative source of growth factors for several types of dental procedures. These growth factors are described as promoters of tissue repair mechanisms and remodelling. ...
Chandra, Tripuraneni - - 2011
This study was conducted to evaluate the cytotoxicity of two beryllium free nickel-chromium dental casting alloys in their reused state. Three groups of specimens per each alloy were casted, first group with 100% new alloy, second by mixing 50 wt% of new alloy with 50 wt% of once used alloy ...
Engineer, Chhaya - - 2011
Biodegradable polymers are extensively used in medical device industry for the controlled delivery of pharmaceutical agent to the targeted region. Successful performance of any controlled drug delivery system (DDS) relies on the drug elution kinetics which further depends on the degradation behavior of the biodegradable polymers. Thus, fundamental understanding of ...
Rao, C.V. - - 2011
Biomaterials and their applications in medicine and dentistry have been recognized in regular clinical practice. In recent years lot of research is being done on its application in the field of medicine and particularly in restorative dentistry. These materials found to be successful for restoration of teeth in esthetic, function ...
Gupta, Himanshu - - 2011
This in vitro study aimed to test the efficacy of ketoconazole and itraconazole, combined with two tissue conditioners (Viscogel [Dentsply] and GC Soft [GC India]), in inhibiting the growth of Candida albicans. Four control groups tested were Viscogel (VGC), GC Soft (GCC), ketoconazole (KTZ) and itraconazole (ITZ). Four combination groups ...
Sivarasu, Sudesh - - 2011
The process of reverse engineering involves, disassembling and disclosing the method in which it works. It often shows an effective way for learning to construct a product/technology or improvise it. In medical devices design, reverse engineering principles are more often used in implants designing and specifically in orthopedic implants designing. ...
Sowmyaa, S. - - 2011
Periodontal disease involves destruction of alveolar bone around the teeth leading to defects or rather loss of the tooth if left untreated. In most cases, tissue regeneration does not happen spontaneously which calls for interventional therapy with bone substitutes. Bone grafts and guided tissue regeneration (GTR) and are the most ...
Patel, Hetal - - 2011
Tissue engineering and regenerative medicines are an exciting research area that aims at regenerative alternatives to harvested tissues for transplantation. Cell, Scaffold and growth factors are the three key materials for tissue engineering. Biomaterials play a pivotal role as scaffolds to provide three dimensional templates and synthetic extracellular matrix environment ...
Alobeedallah, Hadeel - - 2011
Composite materials consisting of Hydroxyapatite (HAP) nano-crystals and biocompatible polymers have been widely used in orthopedic and dental application. These composite can provide both ease of use and superior mechanical properties of polymers, osteoconductivity and bioactivity of HAP. The formation of HAP in different organic solvents and water was investigated ...
Bhola, Rahul - - 2011
The corrosion of biomaterials primarily dental implants/prostheses has a significant clinical relevance. In spite of several recent advances in metallurgical and materials science and remarkable improvements in the design and development of surgical and prosthetic materials, failures do occur sometimes. The current paper focuses the problem of corrosion in titanium ...
Bratanov, Marin - - 2011
The aim of the present study was to determine the capacity of vitelline membrane isolated from fresh hen's egg and gelatin-glutaraldehyde modified viteline membrane to support growth of adherent cells in vitro. Light microscopic observations were used for assessment of the behavior of three different cell types [] 3T3 cells, ...
Nandkumar, A. - - 2010
Urinary tract infection (UTI) caused by catheterization (CAUTI) is one of the leading causes of Nosocomial infection. A number of strategies have been employed to address this problem. Here we describe simple, unique technique of silver oxide impregnation in Foley's catheters of natural Rubber latex to impart infection resistance. Its ...
Thirugnanam, A. - - 2010
Commercially pure titanium was ball milled (BM) in a planetary mill for various time intervals to obtain nanocrystalline particles. The milled samples were characterized using X-ray diffractometry (XRD), scanning electron microscopy (SEM), energy dispersive analysis of X-rays (EDAX), transmission electron microscopy (TEM) and porosimetry. The samples were also compacted and ...
Krishnan, Vibha - - 2010
Floating Drug Delivery Systems (FDDS) provides a comprehensive solution for the retention of drug in stomach than the conventional dosage forms. In this study, floating alginate beads were prepared using sodium bicarbonate or potassium carbonate as a gas-forming agent and methyl cellulose as a binder. The effect of pore forming ...
Engineer, Chhaya - - 2010
In-vitro degradation of 50/50 PLGA for programmed drug release has been systematically investigated from the drug eluting stents. Mass loss, molecular weight reduction, thermal changes and surface morphology of the drug eluting stents were analyzed as a function of degradation time. It was observed that degradation of 50/50 PLGA occurs ...
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