Bioactive enzyme-metal composites: the entrapment of acid phosphatase within gold and silver.

abstract：:Platinum nanoparticle-doped chitosan (CHIT) solution can be easily prepared by treating the CHIT solution with aqueous H2PtCl6 solution followed by chemical reduction of Pt(IV) with NaBH4. Multiwalled carbon nanotubes (MWCNT) are then dispersed in the nanoparticle-doped solution. The resulting Pt-CNT-CHIT material bri...

journal_title：Biomaterials

authors： Yang M,Yang Y,Yang H,Shen G,Yu R

更新日期：2006-01-01 00:00:00

abstract：:The stability of alginate-chitosan capsules was shown to depend strongly on the amount of chitosan bound to the capsules. When the capsules were made by dropping a solution of sodium alginate into a chitosan solution (one-stage procedure), all the chitosan was located in a thin alginate-chitosan membrane on the surfac...

journal_title：Biomaterials

authors： Gåserød O,Sannes A,Skjåk-Braek G

更新日期：1999-04-01 00:00:00

abstract：:The role of albumin in the mineralisation process of commercial hydroxyapatite (HAp) and synthesised biphasic (HAp-tricalcium phosphate) ceramics in a bufferless simulated inorganic plasma (HBSS) was investigated by conventional in vitro tests and static and dynamic wettability measurements. Albumin was either pre-ads...

journal_title：Biomaterials

authors： Marques PA,Serro AP,Saramago BJ,Fernandes AC,Magalhães MC,Correia RN

更新日期：2003-02-01 00:00:00

abstract：:Microcontact printing (mCP) is employed to generate discontinuous microscale gradients of active fractalkine, a chemokine expressed by endothelial cells near sites of inflammation where it is believed to form concentration gradients descending away from the inflamed area. In vivo, fractalkine is a transmembrane molecu...

journal_title：Biomaterials

authors： Hjortø GM,Hansen M,Larsen NB,Kledal TN

更新日期：2009-10-01 00:00:00

abstract：:We report here the study of the biocompatibility of a bone graft material, the Pyrost, using a previously established in vitro model of human osteoblasts. The effect of this material on cell proliferation was evaluated by the MTS assay. Results indicated the absolute absence of cytotoxic or cytostatic effect of Pyrost...

journal_title：Biomaterials

authors： Josset Y,Oum'hamed Z,Zarrinpour A,Lorenzato M,Adnet JJ,Laurent-Maquin D

更新日期：1998-10-01 00:00:00

abstract：:Achieving and maintaining safe and reliable lineage specific differentiation of stem cells is important for clinical translation of tissue engineering strategies. In an effort to circumvent the multitude of problems arising from the usage of growth factors and growth factor delivery systems, we have explored the use o...

journal_title：Biomaterials

authors： Huang CC,Narayanan R,Alapati S,Ravindran S

更新日期：2016-12-01 00:00:00

abstract：:We studied three different types of scaffolds, encapsulating bone morphogenetic protein-2 (BMP-2) plasmid, in terms of their performances in bone regeneration in nude mice. The plasmid was loaded into fibrous matrices in three different ways: coating of naked DNA (Group A) or DNA/chitosan nanoparticles (Group B) onto ...

journal_title：Biomaterials

authors： Nie H,Ho ML,Wang CK,Wang CH,Fu YC

更新日期：2009-02-01 00:00:00

abstract：:With respect to the effect of material factors on calcium phosphate biomaterial-induced osteogenesis, the osteoinductive property of two kinds of porous hydroxyapatite ceramics, which were made by different producers, was investigated in dorsal muscles of dogs. One hydroxyapatite ceramic (S-HA), macroporous implants w...

journal_title：Biomaterials

authors： Yuan H,Kurashina K,de Bruijn JD,Li Y,de Groot K,Zhang X

更新日期：1999-10-01 00:00:00

abstract：:Prostate cancer (PCa) is a leading cause of death for men worldwide. Most PCa patients die from metastasis and bone is the most common metastatic site. Three dimensional (3D) porous chitosan-alginate (CA) scaffolds were developed for bone tissue engineering and demonstrated for culture of cancer cells and enrichment o...

journal_title：Biomaterials

authors： Xu K,Ganapathy K,Andl T,Wang Z,Copland JA,Chakrabarti R,Florczyk SJ

更新日期：2019-10-01 00:00:00

abstract：:Metal sensitivity (MS) reactions to implant metals represent a rare but well-documented complication following total joint arthroplasty (TJA). Although 20-25% of post-TJA patients develop MS, only a few highly susceptible patients (< 1%) exhibit symptoms. Whether surgeons should perform screening for MS is currently a...

journal_title：Biomaterials

authors： Niki Y,Matsumoto H,Otani T,Yatabe T,Kondo M,Yoshimine F,Toyama Y

更新日期：2005-03-01 00:00:00

abstract：:Microstructure of thermal sprayed hydroxyapatite (HA) splats was characterized using transmission electron microscopy (TEM), and the formation mechanisms of micropores within the splats were investigated with the aid of simulated body fluids (SBF). High-velocity oxy-fuel and direct current (DC) plasma spray techniques...

journal_title：Biomaterials

authors： Li H,Khor KA,Cheang P

更新日期：2004-08-01 00:00:00

abstract：:Engineering extracellular matrices that utilize the body's natural healing capacity enable the progression of regenerative therapies. Fibrin, widely used as a surgical sealant, is one such matrix that may be augmented by the addition of protein factors to promote cell infiltration and differentiation. The thrombin-cat...

journal_title：Biomaterials

authors： Soon AS,Stabenfeldt SE,Brown WE,Barker TH

更新日期：2010-03-01 00:00:00

abstract：:The interfacial membrane harvested from failed joint replacements contains particulate debris from the materials used for the implant. To define the tissue response to particulate titanium alloy and hydroxyapatite (HA) alone, 16 mature New Zealand white rabbits were divided into 2 groups of 8 rabbits. Using sterile te...

journal_title：Biomaterials

authors： Goodman SB,Davidson JA,Fornasier VL

更新日期：1993-08-01 00:00:00

abstract：:Nickel-titanium (NiTi, nitinol) shape memory alloy was nitrided using an original powder immersion reaction assisted coating (PIRAC) method in order to modify its surface properties. PIRAC nitriding method is based on annealing the samples in the atmosphere of highly reactive nitrogen supplied by decomposition of unst...

journal_title：Biomaterials

authors： Starosvetsky D,Gotman I

更新日期：2001-07-01 00:00:00

abstract：:Osteoarthritis (OA) is a major cause of disability and socioeconomic loss worldwide. However, the current pharmacological approaches used to treat OA are largely palliative. Being the hallmark of OA, the cartilage extracellular matrix (ECM) destruction and abnormal homeostasis is gaining more attention as a therapeuti...

journal_title：Biomaterials

authors： Peng Z,Sun H,Bunpetch V,Koh Y,Wen Y,Wu D,Ouyang H

更新日期：2021-01-01 00:00:00

abstract：:In this study, the intra-articular tolerability and suitability for local and sustained release of an in situ forming gel composed of an acetyl-capped poly(ε-caprolactone-co-lactide)-b-poly(ethylene glycol)-b-poly(ε-caprolactone-co-lactide) (PCLA-PEG-PCLA) copolymer loaded with celecoxib was investigated in horse join...

journal_title：Biomaterials

authors： Petit A,Redout EM,van de Lest CH,de Grauw JC,Müller B,Meyboom R,van Midwoud P,Vermonden T,Hennink WE,René van Weeren P

更新日期：2015-01-01 00:00:00

abstract：:Ectopic transplantation of islets provides a beta cell-replacement approach that may allow the recovery of physiological regulation of the blood sugar level in patients with Type I diabetes (T1D). In development of new extrahepatic islet transplantation protocols in support of the islet engraftment, it is pivotal to d...

journal_title：Biomaterials

authors： Wang X,Wang K,Zhang W,Qiang M,Luo Y

更新日期：2017-09-01 00:00:00

abstract：:The calcination and natural sintering of calcium deficient hydroxyapatite powders Ca(10-x)(PO4)(6-x)(HPO4)x(OH)(2-x) (with 0 < or = x < or = 1) were studied. For temperature below 700 degrees C, particle coalescence occurs without densification. The particle coalescence is associated with a reduction of the specific s...

journal_title：Biomaterials

authors： Raynaud S,Champion E,Bernache-Assollant D

更新日期：2002-02-01 00:00:00

abstract：:In order to clarify the role of a primer on the adhesion between dental precious metals and resin, surface-enhanced Raman scattering (SERS) technique has been applied to the structural analysis of the adhesive monomer, 6-(N-(4-vinylbenzyl)propylamino)-1,3,5-triazine-2, 4-dithione (VBATDT) adsorbed on colloidal Au surf...

journal_title：Biomaterials

authors： Suzuki M,Fujishima A,Miyazaki T,Hisamitsu H,Kojima K,Kadoma Y

更新日期：1999-05-01 00:00:00

abstract：:A nanocarrier delivery system that can simultaneously deliver a chemotherapeutic drug and siRNA to the tumor is emerging as a promising treatment strategy for cancer treatment. In this study, a multifunctional PHD/PPF/siRNA complexes was developed by one-step assembly of prefunctionalized polymers: PEI-HZ-DOX (PHD) an...

journal_title：Biomaterials

authors： Dong DW,Xiang B,Gao W,Yang ZZ,Li JQ,Qi XR

更新日期：2013-07-01 00:00:00

abstract：:We have recently reported on an ultrafast degrading tyrosine-derived terpolymer that degrades and resorbs within hours, and is suitable for use in cortical neural prosthetic applications. Here we further characterize this polymer, and describe a new tyrosine-derived fast degrading terpolymer in which the poly(ethylene...

journal_title：Biomaterials

authors： Lewitus DY,Smith KL,Shain W,Bolikal D,Kohn J

更新日期：2011-08-01 00:00:00

abstract：:Cancer vaccines are designed to elicit an endogenous adaptive immune response that can successfully recognize and eliminate residual or recurring tumors. Such approaches can potentially overcome shortcomings of passive immunotherapies by generating long-lived therapeutic effects and immune memory while limiting system...

journal_title：Biomaterials

authors： Shukla S,Myers JT,Woods SE,Gong X,Czapar AE,Commandeur U,Huang AY,Levine AD,Steinmetz NF

更新日期：2017-03-01 00:00:00

abstract：:The generation of intracellular reactive oxygen species (ROS) was optically monitored using ROS-sensitive gold nanoprobes in response to an exposure of nanoparticles (NPs). Fluorescent dye-labeled hyaluronic acid was grafted onto the surface of gold nanoparticles (HF-AuNPs) for imaging intracellular ROS. The ultrasens...

journal_title：Biomaterials

authors： Lee K,Lee H,Lee KW,Park TG

更新日期：2011-04-01 00:00:00

abstract：:Calcium phosphates (CaP) and phosphate-based glass (P-glass, xCaO-(0.55-x) Na(2)O-0.45P(2)O(5) composition) composite coatings were obtained on a strong ZrO(2) to improve biocompatibility, the mechanical strength and biological activity. Hydroxyapatite (HA) and P-glass mixed powder slurries were coated on the ZrO(2) s...

journal_title：Biomaterials

authors： Kim HW,Georgiou G,Knowles JC,Koh YH,Kim HE

更新日期：2004-08-01 00:00:00

abstract：:Nanoparticle-induced endothelial cell (EC) dysfunction, due to the induction of inflammation and/or the activation of the coagulation system, is associated with pulmonary and ischemic cardiovascular diseases. Although it is contigent on several mechanisms, involving formation of reactive oxygen species and inflammator...

journal_title：Biomaterials

authors： Bauer AT,Strozyk EA,Gorzelanny C,Westerhausen C,Desch A,Schneider MF,Schneider SW

更新日期：2011-11-01 00:00:00

abstract：:Culture of seeded osteoblastic cells in three-dimensional osteoconductive scaffolds in vitro is a promising approach to produce an osteoinductive material for repair of bone defects. However, culture of cells in scaffolds sufficiently large to bridge critical-sized defects is a challenge for tissue engineers. Diffusio...

journal_title：Biomaterials

authors： Goldstein AS,Juarez TM,Helmke CD,Gustin MC,Mikos AG

更新日期：2001-06-01 00:00:00

abstract：:High-molecular-weight polyethylenimine (25 kDa, PEI25k) is one of the most common cationic polymers utilized in non-viral gene therapy. However, its methylene backbone (-CH(2)CH(2)N(x)-) and high charge density can result in poor biodegradability and high toxicity to cells. We hypothesize that optimizing the polymer l...

journal_title：Biomaterials

authors： Xiong MP,Forrest ML,Ton G,Zhao A,Davies NM,Kwon GS

更新日期：2007-11-01 00:00:00

abstract：:The objective of this study was to investigate the effect of repeated applications of a neutral NaF solution on the surface roughness of four conventional glass ionomer cements (GIC) (ChemFil Superior encapsulated, Fuji Cap II, Ketac-Fil and Hi Dense), three resin-modified (RM-) GIC (Fuji II LC encapsulated, Photac-Fi...

journal_title：Biomaterials

authors： De Witte AM,De Maeyer EA,Verbeeck RM

更新日期：2003-05-01 00:00:00

abstract：:Surface properties of implanted biomaterials can cause fibrotic tissue reactions by stimulating differentiation of host fibroblasts into contractile myofibroblasts. Silk fibroin (SF) protein has been used as biomaterial in pure and blended form. however, its effect on myofibroblast differentiation remains elusive. We ...

journal_title：Biomaterials

authors： Acharya C,Hinz B,Kundu SC

更新日期：2008-12-01 00:00:00

abstract：:Forty squares of tissue, 40 mm X 40 mm, were harvested from bovine pericardium fixed in glutaraldehyde free of tension. Two parallel dumb-bell specimens were excised from each square. In 20 pairs of adjacent samples, two 1 mm cuts were introduced into one of the samples at the centre of the dumb-bell. The other 20 pai...

journal_title：Biomaterials

authors： Crofts CE,Trowbridge EA

更新日期：1989-05-01 00:00:00