Phase-contrast imaging of thin biomaterials.

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：:Rare-earth upconversion nanoparticles (UCNP) which can absorb low-energy photons and emit high energy photons have attracted great interest not only because of their unique application in upconversion luminescence imaging, but also because they can be used as ideal building blocks for multimodal bioimaging probes. Imp...

journal_title：Biomaterials

authors： Liu Q,Chen M,Sun Y,Chen G,Yang T,Gao Y,Zhang X,Li F

更新日期：2011-11-01 00:00:00

abstract：:We investigated whether the post-expansion redifferentiation and cartilage tissue formation capacity of adult human nasal chondrocytes can be regulated by controlled modifications of scaffold composition and architecture. As a model system, we used poly(ethylene glycol)-terephthalate-poly(butylene)-terephthalate block...

journal_title：Biomaterials

authors： Miot S,Woodfield T,Daniels AU,Suetterlin R,Peterschmitt I,Heberer M,van Blitterswijk CA,Riesle J,Martin I

更新日期：2005-05-01 00:00:00

abstract：:New therapeutic strategies are needed for the growing unmet clinical needs in liver disease and fibrosis. Platelet activation and PDGF activity are recognized as important therapeutic targets; however, no therapeutic approach has yet addressed these two upstream drivers of liver fibrosis. We therefore designed a matri...

journal_title：Biomaterials

authors： Kabra H,Walimbe T,Stuart K,Indey C,Jalgaonkar S,Ikwa E,Skurnac T,Chen J,Woolley A,Snead NM,Bachtell N,Leeming DJ,Karsdal M,Prestwich G,Panitch A,Paderi J

更新日期：2020-11-17 00:00:00

abstract：:The aim of this work was to develop a new type of D-alpha-tocopheryl polyethylene glycol 1000 succinate mono-ester (TPGS) coated multi-functional (theranostic) liposomes, which contain both docetaxel and quantum dots (QDs) for cancer imaging and therapy. Non-targeting and folate receptor targeting TPGS coated theranos...

journal_title：Biomaterials

authors： Muthu MS,Kulkarni SA,Raju A,Feng SS

更新日期：2012-04-01 00:00:00

abstract：:In vivo and in vitro degradation of high molecular weight poly(L-lactide) used for internal bone fixation has been investigated. Within 3 months as-polymerized, microporous PLLA (Mv = 6.8-9.5 X 10(5] exhibited a massive strength-loss (sigma b = 68-75 MPa to sigma b = 4 MPa) and decrease of Mv (90-95%). At week 39, the...

journal_title：Biomaterials

authors： Leenslag JW,Pennings AJ,Bos RR,Rozema FR,Boering G

更新日期：1987-07-01 00:00:00

abstract：:Dental amalgam prepared from high copper and conventional alloys was evaluated for its compressive strength as a function of deformation rate. Results showed that the compressive strength rose to a maximum as deformation rate increased and then began to fall at higher deformation rates. Crack propagation predominated ...

journal_title：Biomaterials

authors： Zardiackas LD,Anderson L Jr

更新日期：1986-07-01 00:00:00

abstract：:Injectable, biodegradable scaffolds are important biomaterials for tissue engineering and drug delivery. Hydrogels derived from natural polysaccharides are ideal scaffolds as they resemble the extracellular matrices of tissues comprised of various glycosaminoglycans (GAGs). Here, we report a new class of biocompatible...

journal_title：Biomaterials

authors： Tan H,Chu CR,Payne KA,Marra KG

更新日期：2009-05-01 00:00:00

abstract：:Adipose-derived stem cells (ASCs) have valuable applications in regenerative medicine, but maintaining the stemness of ASCs during in vitro culture is still a challenging issue. In this study, human ASCs spontaneously formed three-dimensional spheroids on chitosan films. Most ASCs within the spheroid were viable, and ...

journal_title：Biomaterials

authors： Cheng NC,Wang S,Young TH

更新日期：2012-02-01 00:00:00

abstract：:In this work, we designed and synthesized an all-in-one zwitterionic material (poly2-((2-hydroxyethyl)(2-methacrylamidoethyl)(methyl)ammonio)acetate (pCBMAA-1)) bearing elasticity, switchable antimicrobial/antifouling properties, and stability. Zwitterionic materials have drawn special attention due to their outstandi...

journal_title：Biomaterials

authors： Cao B,Li L,Tang Q,Cheng G

更新日期：2013-10-01 00:00:00

abstract：:A "room-temperature" injection molding approach combined with particulate leaching (RTIM/PL) has been, for the first time, developed in this work to fabricate three-dimensional porous scaffolds composed of biodegradable polyesters for tissue engineering. In this approach, a "wet" composite of particulate/polymer/solve...

journal_title：Biomaterials

authors： Wu L,Jing D,Ding J

更新日期：2006-01-01 00:00:00

abstract：:Hydrogels produced from self-assembling peptides and peptide derivatives are being investigated as synthetic extracellular matrices for defined cell culture substrates and scaffolds for regenerative medicine. In many cases, however, they are less stiff than the tissues and extracellular matrices they are intended to m...

journal_title：Biomaterials

authors： Jung JP,Jones JL,Cronier SA,Collier JH

更新日期：2008-05-01 00:00:00

abstract：:Cationic polymer PEI-CyD is doped with Nd by plasma technology to produce the gene vector: Nd@PEI-CyD. Luciferase expression and EGFP transfection experiments performed in vitro reveal that Nd@PEI-CyD has significantly higher transfection efficiency than lipofectamine 2000 and PEI-CyD and the mechanism is studied and ...

journal_title：Biomaterials

authors： Wang Q,Jin W,Wu G,Zhao Y,Jin X,Hu X,Zhou J,Tang G,Chu PK

更新日期：2014-01-01 00:00:00

abstract：:Modified high shear homogenization and ultrasound techniques were employed to produce solid lipid nanoparticles (SLNs). Model drug mifepristone had been incorporated in SLNs. The mean particle size measured by laser diffractometry (LD) was found to be 106 nm with a narrow particle distribution of polydispersity index,...

journal_title：Biomaterials

authors： Hou D,Xie C,Huang K,Zhu C

更新日期：2003-05-01 00:00:00

abstract：:Impaction grafting using morsellised allograft bone restores bone stock, but carries the potential for transmission of infection. Synthetic bone graft substitutes can eliminate this risk but may, however, influence outcome. In this study we tested the hypothesis that a 50/50 mix of hydroxyapatite and allograft does no...

journal_title：Biomaterials

authors： Aulakh TS,Jayasekera N,Kuiper JH,Richardson JB

更新日期：2009-03-01 00:00:00

abstract：:Graphene oxide (GO) immunotoxicity is not clarified well up to date. Herein we reported the effects of GOs with and without polyvinylpyrrolidone (PVP) coating on human immune cells such as dendritic cells (DCs), T lymphocytes and macrophages. Human immune cells such as dendritic cells (DCs), T lymphocytes and macropha...

journal_title：Biomaterials

authors： Zhi X,Fang H,Bao C,Shen G,Zhang J,Wang K,Guo S,Wan T,Cui D

更新日期：2013-07-01 00:00:00

abstract：:Materials for orthopaedic implants can fail for several combined reasons: corrosion, fatigue and wear for metals, wear and creep for polymers, fracture for ceramics. Some typical cases are analysed and it is demonstrated that ion implantation improves metals and polymers used for joint prosthesis. Implantations of nit...

journal_title：Biomaterials

authors： Rieu J,Pichat A,Rabbe LM,Chabrol C,Robelet M

更新日期：1990-07-01 00:00:00

abstract：:When developed as targeting ligands for the in vivo delivery of biomaterials to biological systems, RNA aptamers immediately face numerous obstacles, in particular nuclease degradation and post-selection 2' modification. This study aims to develop a novel class of highly stable, 2'-fully modified RNA aptamers that are...

journal_title：Biomaterials

authors： Friedman AD,Kim D,Liu R

更新日期：2015-01-01 00:00:00

abstract：:Angiogenesis plays a prominent role in cancer progression. Anti-angiogenic therapy therefore, either alone or in combination with conventional cytotoxic therapy, offers a promising therapeutic approach. Paclitaxel (PTX) is a widely-used potent cytotoxic drug that also exhibits anti-angiogenic effects at low doses. How...

journal_title：Biomaterials

authors： Eldar-Boock A,Miller K,Sanchis J,Lupu R,Vicent MJ,Satchi-Fainaro R

更新日期：2011-05-01 00:00:00

abstract：:Biomaterials can potentially influence stem and progenitor cell proliferation and differentiation in both a positive and a negative way. Herein, we report on the expansion and differentiation of rat embryonic (E17) liver (RLC-18) cells on new bioactive membrane made of PEEK-WC-PU, whose surface was grafted with nitrog...

journal_title：Biomaterials

authors： Pavlica S,Piscioneri A,Peinemann F,Keller M,Milosevic J,Staeudte A,Heilmann A,Schulz-Siegmund M,Laera S,Favia P,De Bartolo L,Bader A

更新日期：2009-11-01 00:00:00

abstract：:In this in vitro study, the biocompatibility of acrylamide-based hydrogels such as acrylamide/crotonic and acrylamide/itaconic acid, prepared by using gamma-rays, has been investigated against some biochemical parameters of human serum. The swelling kinetics of acrylamide/crotonic and acrylamide/itaconic acid hydrogel...

journal_title：Biomaterials

authors： Karadağ E,Saraydin D,Cetinkaya S,Güven O

更新日期：1996-01-01 00:00:00

abstract：:There are many ways to influence cell activities, and biomaterials with functional groups attached is an attractive method that clearly has the ability to modulate cell behavior. The evidence is clear that biomaterials, with or without growth factors and cells, have resulted in numerous products for the regenerative m...

journal_title：Biomaterials

authors： Ratcliffe A

更新日期：2011-06-01 00:00:00

abstract：:The effects of chitin [(1 --> 4)-2-acetamido-2-deoxy-beta-D-glucan] and its partially deacetylated derivatives, chitosans, on the proliferation of human dermal fibroblasts and keratinocytes were examined in vitro. Chitosans with relatively high degrees of deacetylation strongly stimulated fibroblast proliferation whil...

journal_title：Biomaterials

authors： Howling GI,Dettmar PW,Goddard PA,Hampson FC,Dornish M,Wood EJ

更新日期：2001-11-01 00:00:00

abstract：:Implantation of skeletal myoblasts to the heart has been investigated as a means to regenerate and protect the myocardium from damage after myocardial infarction. While several animal studies utilizing skeletal myoblasts have reported positive findings, results from clinical studies have been mixed. In this study we u...

journal_title：Biomaterials

authors： McGinn AN,Nam HY,Ou M,Hu N,Straub CM,Yockman JW,Bull DA,Kim SW

更新日期：2011-01-01 00:00:00

abstract：:Boiling diluted alkali incubation was found to be an effective way to prepare bioactive Ti6Al4V surfaces, whether polished or not, as indicated in vitro after immersion in two different supersaturated calcification solutions (SCSs). The induction of calcium phosphate (Ca-P) precipitation from the SCSs is most probably...

journal_title：Biomaterials

authors： Wen HB,de Wijn JR,Cui FZ,de Groot K

更新日期：1998-01-01 00:00:00

abstract：:Stem cell transplantation is a promising therapeutic strategy for acute or chronic ischemic cardiomyopathy. A major limitation to efficacy in cell transplantation is the low efficiency of retention and engraftment, due at least in part to significant early "wash-out" of cells from coronary blood flow and heart contrac...

journal_title：Biomaterials

authors： Vandergriff AC,Hensley TM,Henry ET,Shen D,Anthony S,Zhang J,Cheng K

更新日期：2014-10-01 00:00:00

abstract：:Hypoxia, as an inevitable characteristic of solid tumors, has been regarded as a noticeably causative factor to therapeutic resistance and metastatic variants. Exploring novel theranostics to realize the accurate diagnosis of hypoxia and the simultaneous implementation of effective therapy is a promising prospect for ...

journal_title：Biomaterials

authors： Song R,Zhang M,Liu Y,Cui Z,Zhang H,Tang Z,Chen X,Wu H,Yao Z,He M,Bu W

更新日期：2018-08-01 00:00:00

abstract：:In an in vitro study, we have quantitatively evaluated the capability of seven different types of silicone to retain a Staphylococcus aureus strain, isolated from a surgical wound. All the silicone specimens were taken from prostheses already used in plastic or ophthalmological surgery. Two polymers were used as contr...

journal_title：Biomaterials

authors： Arciola CR,Cenni E,Caramazza R,Pizzoferrato A

更新日期：1995-06-01 00:00:00

abstract：:Xenogeneic extracellular matrix (ECM) can be harvested and configured to function as a bioscaffold for tissue and organ reconstruction. The mechanical properties of the ECM vary depending upon the tissue from which it is harvested. Likewise, the manufacturing steps required to develop ECMs into medical grade devices w...

journal_title：Biomaterials

authors： Freytes DO,Badylak SF,Webster TJ,Geddes LA,Rundell AE

更新日期：2004-05-01 00:00:00

abstract：:Duchenne Muscular Dystrophy (DMD) is a fatal genetic disorder currently having no cure. Here we report that culture substrates patterned with nanogrooves and functionalized with Matrigel (or laminin) present an engineered cell microenvironment to allow myotubes derived from non-diseased, less-affected DMD, and severel...

journal_title：Biomaterials

authors： Xu B,Magli A,Anugrah Y,Koester SJ,Perlingeiro RCR,Shen W

更新日期：2018-11-01 00:00:00