Synthesis and properties of novel block copolymers containing poly(lactic-glycolic acid) and poly(ethyleneglycol) segments.

abstract：:Toll-like receptor 4 (TLR4) plays a critical role in the innate immune system. Stimulation of TLR4 occurs upon binding lipopolysaccharide (LPS), a component of Gram-negative bacterial cell walls. Due to the potency of the induced inflammatory response, there is a growing interest in agents that can most proximally mod...

journal_title：Biomaterials

authors： Foit L,Thaxton CS

更新日期：2016-09-01 00:00:00

abstract：:The aim of the present study was to test the hypothesis that oligonucleotides can be used for anchorage and slow release of osteogenic growth factors such as BMP to enhance the osteogenic activity of a titanium implant surface. Strands of 60-mer non-coding DNA oligonucleotides (ODN) were bound to an acid-etched sandbl...

journal_title：Biomaterials

authors： Schliephake H,Bötel C,Förster A,Schwenzer B,Reichert J,Scharnweber D

更新日期：2012-02-01 00:00:00

abstract：:The rate of change of pH of aqueous lactic acid at pH 4.2-4.5 (i.e. a little below that of active caries in vivo) in contact with disks of various commercial glass-ionomer cements has been determined in two configurations. In the first of them, a thin film set-up, 20 microl of solution was spread across the surface of...

journal_title：Biomaterials

authors： Nicholson JW,Aggarwal A,Czarnecka B,Limanowska-Shaw H

更新日期：2000-10-01 00:00:00

abstract：:Potential applications of engineered, functional, cardiac muscle extends from basic research through drug discovery to engineering heart tissue for transplantation. One of the central questions in cardiac tissue engineering is to understand and control the complex interactions between the cardiac muscle cells and thei...

journal_title：Biomaterials

authors： Das M,Molnar P,Gregory C,Riedel L,Jamshidi A,Hickman JJ

更新日期：2004-11-01 00:00:00

abstract：:The commercial availability of peptides and proteins and their advantages as therapeutic agents have been the basis for tremendous efforts in designing delivery systems for such agents. The protection of these agents from biological fluids and physiological interactions is crucial for the treatment efficacy. One such ...

journal_title：Biomaterials

authors： Torres-Lugo M,Peppas NA

更新日期：2000-06-01 00:00:00

abstract：:This study aimed to assess the biocompatibility of two cordierite ceramics (DF and Cord 1014), with similar chemical composition and different porosity, as a potential support for cell growth in a continuous-flow, solid-bed reactor. The Chinese hamster ovary (CHO) cell line transfected with HBV-DHFR recombinant plasmi...

journal_title：Biomaterials

authors： Orlandi L,Solmi R,Krajewski A,Bearzatto A,Biagini G,Ciccopiedi E,Ravaglioli A

更新日期：1997-07-01 00:00:00

abstract：:The design of peptide-based subunit vaccine formulations for the direct delivery of tumor antigen peptides (Aps) to dendritic cells (DCs) localized within draining lymph nodes (DLNs) is challenging. Mature DCs (mDCs) are abundantly distributed within DLNs but have dramatically reduced endocytic uptake and antigen-proc...

journal_title：Biomaterials

authors： Qian Y,Jin H,Qiao S,Dai Y,Huang C,Lu L,Luo Q,Zhang Z

更新日期：2016-08-01 00:00:00

abstract：:Photodynamic therapy (PDT) induced hypoxia can significantly upregulate the expression of vascular endothelial growth factor (VEGF) at the tumor-stromal interface, resulting in a promoted angiogenesis. Thus, an angiogenesis vessel-targeting nanoparticle (AVT-NP) consisting of photosensitizer, angiogenic vessel-targeti...

journal_title：Biomaterials

authors： Guo D,Xu S,Wang N,Jiang H,Huang Y,Jin X,Xue B,Zhang C,Zhu X

更新日期：2017-11-01 00:00:00

abstract：:There is a need for new therapeutic strategies to treat bone defects caused by trauma, disease or tissue loss. Injectable systems for cell transplantation have the advantage of allowing the use of minimally invasive surgical procedures, and thus for less discomfort to patients. In the present study, it is hypothesized...

journal_title：Biomaterials

authors： Evangelista MB,Hsiong SX,Fernandes R,Sampaio P,Kong HJ,Barrias CC,Salema R,Barbosa MA,Mooney DJ,Granja PL

更新日期：2007-09-01 00:00:00

abstract：:To evaluate the biocompatibility of chemically and structurally modified polyurethane elastomers for use as blood vessel replacements, small squares of vascular prostheses were cultured in direct contact with endothelium from chick embryo aorta using an organotypic culture assay. The polyurethane materials tested were...

journal_title：Biomaterials

authors： Guidoin R,Sigot M,King M,Sigot-Luizard MF

更新日期：1992-01-01 00:00:00

abstract：:Mesenchymal stromal cells (hMSCs) are advancing into the clinic but the therapeutic efficacy of hMSCs faces the problem of donor variability. In bone tissue engineering, no reliable markers have been identified which are able to predict the bone-forming capacity of hMSCs prior to implantation. To this end, we isolated...

journal_title：Biomaterials

authors： Mentink A,Hulsman M,Groen N,Licht R,Dechering KJ,van der Stok J,Alves HA,Dhert WJ,van Someren EP,Reinders MJ,van Blitterswijk CA,de Boer J

更新日期：2013-06-01 00:00:00

abstract：:This study examined the effects of copolymer hydrophilicity and temperature on water sorption and solubility characteristics of five copolymer blends of increasing degree of hydrophilicity using gravimetric measurements. Six resin disks (15 mm in diameter x 1 mm in thickness) were prepared from each copolymer blend an...

journal_title：Biomaterials

authors： Yiu CK,King NM,Carrilho MR,Sauro S,Rueggeberg FA,Prati C,Carvalho RM,Pashley DH,Tay FR

更新日期：2006-03-01 00:00:00

abstract：:This study examined the antibacterial activity of prepolymerized resin filler, in which the bactericide quaternary ammonium was immobilized. The experimental filler was prepared by grinding prepolymerized resin blocks of methacrylate monomers, silica particles, and the antibacterial monomer methacryloyloxydodecylpyrid...

journal_title：Biomaterials

authors： Imazato S,Ebi N,Takahashi Y,Kaneko T,Ebisu S,Russell RR

更新日期：2003-09-01 00:00:00

abstract：:The purpose of this study was to compare the osseointegration of 4 different kinds of bioactive ceramic-coated screws with uncoated screws by biomechanical and histomorphometric analysis. Calcium pyrophosphate (CPP), apatite-wollastonite 1:3 glass ceramic (W3G), apatite-wollastonite 1:1 glass ceramic (WAG) and bioacti...

journal_title：Biomaterials

authors： Lee JH,Ryu HS,Lee DS,Hong KS,Chang BS,Lee CK

更新日期：2005-06-01 00:00:00

abstract：:In the present study, we tested the hypothesis that electroporation-mediated transfer of Runx2, Osterix, or both genes enhances the in vitro and in vivo osteogenesis from adipose stem cells (ASCs). ASCs were transfected with Runx2, Osterix, or both genes using electroporation, and further cultured in monolayer or in P...

journal_title：Biomaterials

authors： Lee JS,Lee JM,Im GI

更新日期：2011-01-01 00:00:00

abstract：OBJECTIVES:To analyze the biocompatibility of multifilament polyester (PET) meshes used for the implantation of auditory brainstem implants in a standardized Wistar rat model (n=29). METHODS:The physical properties of the meshes were examined during surgery. Using a modified plastic embedding, the local tissue reactio...

journal_title：Biomaterials

authors： Quester R,Hermanns B,Klosterhalfen B,Schröder R,Klug N

更新日期：2003-02-01 00:00:00

abstract：:Targeted drug delivery with precisely controlled drug release and activation is highly demanding and challenging for tumor precision therapy. Herein, a biomimetic cascade nanoreactor (designated as Mem@GOx@ZIF-8@BDOX) is constructed for tumor targeted starvation therapy-amplified chemotherapy by assembling tumor cell ...

journal_title：Biomaterials

authors： Cheng H,Jiang XY,Zheng RR,Zuo SJ,Zhao LP,Fan GL,Xie BR,Yu XY,Li SY,Zhang XZ

更新日期：2019-03-01 00:00:00

abstract：:Infection constitutes a major risk for implant failure, but the reasons why biomaterial sites are more vulnerable than normal tissue are not fully elucidated. In this study, a soft tissue infection model was developed, allowing the analysis of cellular and molecular responses in each of the sub-compartments of the imp...

journal_title：Biomaterials

authors： Svensson S,Trobos M,Hoffman M,Norlindh B,Petronis S,Lausmaa J,Suska F,Thomsen P

更新日期：2015-02-01 00:00:00

abstract：:Poly(epsilon-caprolactone) (PCL) was dissolved in four solvent systems, chloroform, tetrahydrofuran, acetone and ethyl acetate, and cast onto glass Petri dishes. The surface properties of the resulting films were investigated. The extent to which their properties were determined by the solvent used in each case was qu...

journal_title：Biomaterials

authors： Tang ZG,Black RA,Curran JM,Hunt JA,Rhodes NP,Williams DF

更新日期：2004-08-01 00:00:00

abstract：:The development of a method that can efficiently deliver nucleic acids into the nucleus of living systems remains one of the key challenges for experimental and therapeutic use of nonbiological gene delivery agents. In the current study, we demonstrate a functionalized gold nanoparticle (AuNP) that can serve as a univ...

journal_title：Biomaterials

authors： Kim DW,Kim JH,Park M,Yeom JH,Go H,Kim S,Han MS,Lee K,Bae J

更新日期：2011-04-01 00:00:00

abstract：:Poly(ortho esters) with a low glass transition temperature are semi-solid materials so that therapeutic agents can be incorporated at room temperature, without the use of solvents, by a simple mixing procedure. When molecular weights are limited to < 5 kDa, such materials are directly injectable using a needle size no...

journal_title：Biomaterials

authors： Helle J,Barr J,Ng SY,Shen HR,Schwach-Abdellaoui K,Gurny R,Vivien-Castioni N,Loup PJ,Baehni P,Mombelli A

更新日期：2002-11-01 00:00:00

abstract：:We report here a thermal decomposition approach to the synthesis of water-soluble superparamagnetic manganese ferrite (MnFe(2)O(4)) nanoparticles (NPs) for magnetic resonance (MR) imaging applications. In this approach, tetraethylene glycol was utilized as a coordination and stabilization agent, rendering the NPs wate...

journal_title：Biomaterials

authors： Yang H,Zhang C,Shi X,Hu H,Du X,Fang Y,Ma Y,Wu H,Yang S

更新日期：2010-05-01 00:00:00

abstract：:Clinically used contrast agents for magnetic resonance imaging (MRI) suffer by the lack of specificity; short circulation time; and insufficient relaxivity. Here, a one-step combinatorial approach is described for the synthesis of magnetic lipid-polymer (hybrid) nanoparticles (MHNPs) encapsulating 5 nm ultra-small sup...

journal_title：Biomaterials

authors： Aryal S,Key J,Stigliano C,Ananta JS,Zhong M,Decuzzi P

更新日期：2013-10-01 00:00:00

abstract：:The stability of some water alginates against bacterial degradation was studied. The study was based on viscosity and pH measurements of some typical alginate solutions, containing suitable additives during an extended time period (222 days). ...

journal_title：Biomaterials

authors： Polyzois GL,Andreopoulos AG

更新日期：1985-01-01 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：:Two vinyl sulfone functionalized crosslinkers were developed for the purpose of preparing degradable poly(ethylene glycol) (PEG) hydrogels (EMXL and GABA-EMXL hydrogels). A self-elimination degradation mechanism in which an N-terminal residue of a glutamine is converted to pyroglutamic acid with subsequent release of ...

journal_title：Biomaterials

authors： Deshmukh M,Singh Y,Gunaseelan S,Gao D,Stein S,Sinko PJ

更新日期：2010-09-01 00:00:00

abstract：:We report the fabrication of a one-pot antigen system that delivers antigen to dendritic cells (DCs) and tracks their in vivo migration after injection. Multifunctional polymer nanoparticles containing ovalbumin protein, magnetic resonance imaging contrast agents (iron oxide nanoparticles), and near-infrared fluoropho...

journal_title：Biomaterials

authors： Noh YW,Jang YS,Ahn KJ,Lim YT,Chung BH

更新日期：2011-09-01 00:00:00

abstract：:Although transplantation of pancreatic islets is a promising approach for treatment of type 1 diabetes mellitus, the engraftment efficiency of these islets is limited by host immune responses. Extensive efforts have been made to immunoisolate these islets by introducing barriers on the islet surface. To date, these ba...

journal_title：Biomaterials

authors： Izadi Z,Hajizadeh-Saffar E,Hadjati J,Habibi-Anbouhi M,Ghanian MH,Sadeghi-Abandansari H,Ashtiani MK,Samsonchi Z,Raoufi M,Moazenchi M,Izadi M,Nejad ASSH,Namdari H,Tahamtani Y,Ostad SN,Akbari-Javar H,Baharvand H

更新日期：2018-11-01 00:00:00

abstract：:Strangles is an infectious disease caused by Streptococcus equi subspecies equi that affects the upper respiratory tract of the Equidae. The control of this disease seems to be dependent on its earlier detection and prevention, but prolonged animal protection without development of strong and severe side effects has n...

journal_title：Biomaterials

authors： Florindo HF,Pandit S,Gonçalves LM,Videira M,Alpar O,Almeida AJ

更新日期：2009-10-01 00:00:00

abstract：:This highly absorbent, biodegradable dressing derived from seaweed can be successfully applied to cleanse a wide variety of secreting lesions. The high absorption of exudate is achieved via strong hydrophilic gel formation and this serves to control wound secretion levels and to minimize bacterial contamination. Algin...

journal_title：Biomaterials

authors： Gilchrist T,Martin AM

更新日期：1983-10-01 00:00:00