Thermoplastic biodegradable polyurethanes: the effect of chain extender structure on properties and in-vitro degradation.

abstract：:Human stem cells are vulnerable to unfavorable conditions, and their transportation relies on costly and inconvenient cryopreservation. We report here that human mesenchymal stem cells (MSC) in spheroids survived ambient conditions (AC) many days longer than in monolayer. Under AC, the viability of MSC in spheroids re...

journal_title：Biomaterials

authors： Jiang B,Yan L,Miao Z,Li E,Wong KH,Xu RH

更新日期：2017-07-01 00:00:00

abstract：:Lingo-1 is selectively expressed on both oligodendrocytes and neurons in the central nervous system (CNS) and serves as a key negative regulator of nerve regeneration, implying a therapeutic target for spinal cord injury (SCI). Here we described a strategy to knock-down Lingo-1 expression in vivo using lentiviral vect...

journal_title：Biomaterials

authors： Wu HF,Cen JS,Zhong Q,Chen L,Wang J,Deng DY,Wan Y

更新日期：2013-02-01 00:00:00

abstract：:An urgent unmet need exists for early-stage treatment of spinal cord injury (SCI). Currently methylprednisolone is the only therapeutic agent used in clinics, for which the efficacy is controversial and the side effect is well-known. We demonstrated functional restoration of injured spinal cord by self-assembled nanop...

journal_title：Biomaterials

authors： Wu W,Lee SY,Wu X,Tyler JY,Wang H,Ouyang Z,Park K,Xu XM,Cheng JX

更新日期：2014-02-01 00:00:00

abstract：:Oxidative stress is commonly existed in bone degenerative disease (osteoarthritis, osteoporosis etc.) and some antioxidants had great potential to enhance osteogenesis. In this study, we aim to investigate the anti-oxidative properties of various TiO2 nanotubes (TNTs) so to screen the desirable size for improved osteo...

journal_title：Biomaterials

authors： Yu Y,Shen X,Luo Z,Hu Y,Li M,Ma P,Ran Q,Dai L,He Y,Cai K

更新日期：2018-06-01 00:00:00

abstract：:Retinal pigment epithelial (RPE) cellular morphology and function are vital to the health of the retina. In age-related macular degeneration, RPE dysfunction and changes in Bruch's membrane occur. Thus, a potential cure is a dual-layer biomimetic transplant consisting of a layer of healthy RPE cells cultured on a supp...

journal_title：Biomaterials

authors： Lee CJ,Fishman HA,Bent SF

更新日期：2007-04-01 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：:microRNA-124 (miR-124), the most abundant miRNA of the CNS, was recently shown to modulate the polarization of activated microglia and infiltrating macrophages towards the anti-inflammatory M2 phenotype and protect neurons in various ways after brain disease. In ischemic stroke, microglia and macrophages of a detrimen...

journal_title：Biomaterials

authors： Hamzei Taj S,Kho W,Riou A,Wiedermann D,Hoehn M

更新日期：2016-06-01 00:00:00

abstract：:Single-stranded oligonucleotide-conjugated lipids (ssDNA-PEG-lipids) that associate with the cell membrane confer to the cell an artificial adhesive capability via sequence-specific hybridization to complementary oligonucleotides, forming bonds of double stranded oligonucleotides (dsDNA). Such artificial tethers permi...

journal_title：Biomaterials

authors： Hoffecker IT,Takemoto N,Arima Y,Iwata H

更新日期：2015-01-01 00:00:00

abstract：:Membranes based on mechanically supported poly(vinyl alcohol) (PVA) hydrogels with mesh-size asymmetry were developed for potential application in biohybrid artificial organs. The pores of cellulose ester microfiltration membranes were impregnated with a PVA solution, which was lightly crosslinked with glutaraldehyde ...

journal_title：Biomaterials

authors： Dai WS,Barbari TA

更新日期：2000-07-01 00:00:00

abstract：:Although silicones possess many useful properties as biomaterials, their hydrophobicity can be problematic. To a degree, this issue can be addressed by surface modification with hydrophilic polymers such as poly(ethylene glycol), but the resulting structures are usually not conducive to cell growth. In the present wor...

journal_title：Biomaterials

authors： Alauzun JG,Young S,D'Souza R,Liu L,Brook MA,Sheardown HD

更新日期：2010-05-01 00:00:00

abstract：:The management of trauma-associated nerve defects is difficult because of the absence of autologous donor motor or sensory nerves. Pre-clinical development and clinical experience has shown that damaged nerves can be surgically repaired using a tubular conduit interposed across the defect. Acceptable patient outcomes ...

journal_title：Biomaterials

authors： Sierpinski P,Garrett J,Ma J,Apel P,Klorig D,Smith T,Koman LA,Atala A,Van Dyke M

更新日期：2008-01-01 00:00:00

abstract：:Most urgent health problems are related to a blood vessel formation failure. The use of stem cells from different sources or species for both in vitro and in vivo engineering of endothelium does not necessarily imply their direct commitment towards a vascular phenotype. In the present study, we used human amniotic flu...

journal_title：Biomaterials

authors： Mirabella T,Cilli M,Carlone S,Cancedda R,Gentili C

更新日期：2011-05-01 00:00:00

abstract：:Although dendritic nanoparticles have been prepared by many different methods, control over their degree of branching (DB) is still impossible, preventing us from understanding the effect of the DB on the properties of the nanodendrites as cancer therapeutics. Herein, we developed a novel seed-mediated method to prepa...

journal_title：Biomaterials

authors： Qiu P,Yang M,Qu X,Huai Y,Zhu Y,Mao C

更新日期：2016-10-01 00:00:00

abstract：:A new diamond ATR FTIR method has been developed to quantify the processes occurring in the resin-modified glass-ionomer cement (RMGIC). Fuji II LC (Improved), at 1 mm depth from the cement/water interface. With Fuji II LC (Improved) various changes in the spectra due to 90% monomer polymerisation were observed within...

journal_title：Biomaterials

authors： Young AM

更新日期：2002-08-01 00:00:00

abstract：:Ex-vivo blood-brain barrier (BBB) model is of great value for studying brain function and drug development, but it is still challenging to engineer macroscale three-dimensional (3D) tissue constructs to recapitulate physiological and functional aspects of BBB. Here, we describe a delicate 3D vascularized neural constr...

journal_title：Biomaterials

authors： Yue H,Xie K,Ji X,Xu B,Wang C,Shi P

更新日期：2020-07-01 00:00:00

abstract：:Liver diseases can be caused by viral infection, metabolic disorder, alcohol consumption, carcinoma or injury, chronically progressing to end-stage liver disease or rapidly resulting in acute liver failure. In either situation, liver transplantation is most often sought for life saving, which is, however, significantl...

journal_title：Biomaterials

authors： Zhang J,Zhao X,Liang L,Li J,Demirci U,Wang S

更新日期：2018-03-01 00:00:00

abstract：:The N-terminal 200 amino acid residues of topoisomerase I (TopoN) is highly positive in charge and has DNA binding activity, without DNA sequence and topological specificity. Here, a fusion protein (6 x His-PTD-TopoN) containing a hexahistidine (6 x His) tag, a membrane penetration domain and TopoN (amino acid 3-200) ...

journal_title：Biomaterials

authors： Chen YA,Kuo HC,Chen YM,Huang SY,Liu YR,Lin SC,Yang HL,Chen TY

更新日期：2011-06-01 00:00:00

abstract：:Space experimentation of cardiomyocyte differentiation from human induced pluripotent stem cells offers an exciting opportunity to explore the potential of these cells for disease modeling, drug discovery and regenerative medicine. Previous studies on the International Space Station were done with 2D non-cryopreserved...

journal_title：Biomaterials

authors： Rampoldi A,Jha R,Fite J,Boland G,Xu C

更新日期：2021-01-11 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：: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：:Tissue engineering therapies require biomaterials capable of encouraging an angiogenic response. To dissect the influence of different pro-angiogenic stimuli a set of starPEG-heparin hydrogels with varied physicochemical properties was used as a highly efficient reservoir and tunable delivery system for basic fibrobla...

journal_title：Biomaterials

authors： Zieris A,Prokoph S,Levental KR,Welzel PB,Grimmer M,Freudenberg U,Werner C

更新日期：2010-11-01 00:00:00

abstract：:Microspheres of a hydrophobic and a hydrophilic poly(ether-ester) copolymer were evaluated for their in vitro and in vivo biocompatibility and degradation. The microspheres prior to and after sterilization were tested for in vitro cytotoxicity. The in vivo biocompatibility of the poly(ethylene glycol) terephthalate an...

journal_title：Biomaterials

authors： van Dijkhuizen-Radersma R,Hesseling SC,Kaim PE,de Groot K,Bezemer JM

更新日期：2002-12-01 00:00:00

abstract：:Knee arthroplasty has reached a high degree of reliability. Many of the remaining long-term loosening cases are due to the polyethylene wear debris. The introduction of the alumina ceramic to polyethylene bearing couple had been a promising means for its reduction. The discussion of its applications in total knee repl...

journal_title：Biomaterials

authors： Heimke G,Leyen S,Willmann G

更新日期：2002-04-01 00:00:00

abstract：:Cell movement on adhesive surfaces is a complicated process based on myriad cell-surface interactions. Although both micron and nanoscale surface topography have been known to be important in understanding cell-materials interactions, typically only simple patterns (e.g., parallel lines or aligned posts) have been use...

journal_title：Biomaterials

authors： Jeon H,Hidai H,Hwang DJ,Healy KE,Grigoropoulos CP

更新日期：2010-05-01 00:00:00

abstract：:It is well known that biomaterials play an important role in the regulation of adhesion and growth of a variety of cultured cell types. However, whether biomaterials are associated with the senescence of cultured cells is not known. The present work shows that the decrease of the hydrophobic property of poly (ethylene...

journal_title：Biomaterials

authors： Lou PJ,Chiu MY,Chou CC,Liao BW,Young TH

更新日期：2010-03-01 00:00:00

abstract：:Human cell therapy applications in tissue engineering, such as the ex vivo production of hematopoietic cells for transplantation, have recently entered the clinic. Although considerable effort has been focused on the development of biological processes to generate therapeutic cells, little has been published on the de...

journal_title：Biomaterials

authors： Koller MR,Palsson MA,Manchel I,Maher RJ,Palsson BO

更新日期：1998-11-01 00:00:00

abstract：:The use of artificial tissues in regenerative medicine is limited due to hypoxia. As a strategy to overcome this drawback, we have shown that photosynthetic biomaterials can produce and provide oxygen independently of blood perfusion by generating chimeric animal-plant tissues during dermal regeneration. In this work,...

journal_title：Biomaterials

authors： Chávez MN,Schenck TL,Hopfner U,Centeno-Cerdas C,Somlai-Schweiger I,Schwarz C,Machens HG,Heikenwalder M,Bono MR,Allende ML,Nickelsen J,Egaña JT

更新日期：2016-01-01 00:00:00

abstract：:Tissue-engineered organs and implants hold promise for the replacement of damaged and diseased organs. However, the foreign body response (FBR) is a major obstacle that compromises the function of tissue-engineered constructs, typically causing them to fail. Two components of FBR are an inflammatory response and a lac...

journal_title：Biomaterials

authors： Browne S,Monaghan MG,Brauchle E,Berrio DC,Chantepie S,Papy-Garcia D,Schenke-Layland K,Pandit A

更新日期：2015-11-01 00:00:00

abstract：:This article reviews the controlled release of biologically active agents by the erosion or chemical degradation of a polymer matrix into which the agent is incorporated. Chemically bound active agents and work on steroid release from cholesterol implants are not covered. The mechanisms of polymer erosion discussed ar...

journal_title：Biomaterials

authors： Heller J

更新日期：1980-01-01 00:00:00

abstract：:Polyethylene terephthalate (PET), ethylene-vinyl alcohol copolymer (EVOH) and Nylon 6 in plate form were treated with silane-coupling agents, a titanium alkoxide-alcohol solution and a hot HCl solution to form a thin crystalline titanium oxide layer. When placed in a simulated body fluid with ion concentrations nearly...

journal_title：Biomaterials

authors： Balas F,Kawashita M,Nakamura T,Kokubo T

更新日期：2006-03-01 00:00:00