Secretory function of adrenal chromaffin cells cultured on polypyrrole films.

abstract：:Decellularized extracellular matrices (ECM) from in vitro cell cultures can serve as in vivo-like matrix scaffolds for modulating cell-ECM interactions. Macromolecular crowding (MMC), the supplementation of synthetic or naturally occurring molecules resulting in excluded volume effects (EVE), has been demonstrated to ...

journal_title：Biomaterials

authors： Prewitz MC,Stißel A,Friedrichs J,Träber N,Vogler S,Bornhäuser M,Werner C

更新日期：2015-12-01 00:00:00

abstract：:B cells play a major role in the adaptive immune response by producing antigen-specific antibodies against pathogens and imparting immunological memory. Following infection or vaccination, antibody-secreting B cells and memory B cells are generated in specialized regions of lymph nodes and spleens, called germinal cen...

journal_title：Biomaterials

authors： Roh KH,Song HW,Pradhan P,Bai K,Bohannon CD,Dale G,Leleux J,Jacob J,Roy K

更新日期：2018-05-01 00:00:00

abstract：:Development of highly efficient nonviral gene delivery vectors still remains a great challenge. In this study, we report a new gene delivery vector based on dendrimer-entrapped gold nanoparticles (Au DENPs) with significantly higher gene transfection efficiency than that of dendrimers without AuNPs entrapped. Amine-te...

journal_title：Biomaterials

authors： Shan Y,Luo T,Peng C,Sheng R,Cao A,Cao X,Shen M,Guo R,Tomás H,Shi X

更新日期：2012-04-01 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：:A major obstacle in the survival and efficacy of tissue engineered transplants is inadequate oxygenation, whereby unsupportive oxygen tensions result in significant cellular dysfunction and death within the implant. In a previous report, we developed an innovative oxygen generating biomaterial, termed OxySite, to prov...

journal_title：Biomaterials

authors： Coronel MM,Geusz R,Stabler CL

更新日期：2017-06-01 00:00:00

abstract：:In mammalian embryos, cortical interneurons travel long distances among complex three-dimensional tissues before integrating into cortical circuits. Several molecular guiding cues involved in this migration process have been identified, but the influence of physical parameters remains poorly understood. In the present...

journal_title：Biomaterials

authors： Leclech C,Renner M,Villard C,Métin C

更新日期：2019-09-01 00:00:00

abstract：:High sensitivity at ultra-high field (UHF) and sufficient potential to penetrate the brain are the most desirable characteristics in the development of contrast agents (CAs) for magnetic resonance imaging (MRI). However, incorporating such qualities into a single nanocarrier is challenging. Herein, we report a new str...

journal_title：Biomaterials

authors： Kim HK,Baek AR,Choi G,Lee JJ,Yang JU,Jung H,Lee T,Kim D,Kim M,Cho A,Lee GH,Chang Y

更新日期：2020-06-01 00:00:00

abstract：:Combination therapy is usually considered as a promising strategy owing to its advantages such as reduced doses, minimized side effects and improved therapeutic efficiency in a variety of diseases including diabetes. Here we synthesized a new highly intracellular stimuli-sensitive chitosan-graft-metformin (CS-MET) pro...

journal_title：Biomaterials

authors： Wang FZ,Xie ZS,Xing L,Zhang BF,Zhang JL,Cui PF,Qiao JB,Shi K,Cho CS,Cho MH,Xu X,Li P,Jiang HL

更新日期：2015-12-01 00:00:00

abstract：:Renal regeneration approaches offer great potential for the treatment of chronic kidney disease, but their availability remains limited by the clinical challenges they pose. In the present study, we used continuous detergent perfusion to generate decellularized (DC) rat kidney scaffolds. The scaffolds retained intact ...

journal_title：Biomaterials

authors： Yu YL,Shao YK,Ding YQ,Lin KZ,Chen B,Zhang HZ,Zhao LN,Wang ZB,Zhang JS,Tang ML,Mei J

更新日期：2014-08-01 00:00:00

abstract：:Biomedical device-associated infection is one of the most common and problematic complications faced by millions of patients worldwide. The current antibiotic therapy strategies face challenges, the most serious of which is antibiotic resistance. Studies have shown that the systemic level of interleukin 12 (IL-12) dec...

journal_title：Biomaterials

authors： Li B,Jiang B,Boyce BM,Lindsey BA

更新日期：2009-05-01 00:00:00

abstract：:Tissue engineering scaffolds with complex geometries can provide an architecture that directs tissue formation. Drug delivery from these scaffolds to promote regeneration is often challenging due to the complex fabrication processes. Surface-mediated DNA delivery from multiple channel bridges was applied to deliver li...

journal_title：Biomaterials

authors： De Laporte L,Yan AL,Shea LD

更新日期：2009-04-01 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：:Morphological changes of human polymorphonuclear neutrophils (PMN) adhering to hydrophilic (glass) and hydrophobic (FEP-Teflon, polyethylene, polypropylene) surfaces were studied in a parallel-plate flow chamber at the light and scanning electron microscopical levels. The PMN were exposed to a shear stress of 0.19 Pa ...

journal_title：Biomaterials

authors： Tomczok J,Sliwa-Tomczok W,Klein CL,van Kooten TG,Kirkpatrick CJ

更新日期：1996-07-01 00:00:00

abstract：:We have previously shown that the high-affinity streptavidin (SA)-biotin interaction enhanced the initial integrin-mediated adhesion of biotinylated endothelial cells to SA-coated surface by serving as an extrinsic bond to stabilize and enhance the intrinsic fibronectin-integrin binding between the cell and surface. H...

journal_title：Biomaterials

authors： Chan BP,Chilkoti A,Reichert WM,Truskey GA

更新日期：2003-02-01 00:00:00

abstract：:Due to the architecture of solid body tissues including bone, three-dimensional (3D) in vitro microenvironments appear favorable, since herein cell growth proceeds under more physiological conditions compared to conventional 2D systems. In the present study we show that a 3D microenvironment comprising a fibronectin-c...

journal_title：Biomaterials

authors： Altmann B,Steinberg T,Giselbrecht S,Gottwald E,Tomakidi P,Bächle-Haas M,Kohal RJ

更新日期：2011-12-01 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

abstract：:By taking advantage of the excessively upregulated expression of neuropilin (NRP) on the surface of both glioma cells and endothelial cells of angiogenic blood vessels, the ligand of NRP with high affinity - tLyp-1 peptide, which also contains a CendR motif ((R/K)XX(R/K)), was functionalized to the surface of PEG-PLA ...

journal_title：Biomaterials

authors： Hu Q,Gao X,Gu G,Kang T,Tu Y,Liu Z,Song Q,Yao L,Pang Z,Jiang X,Chen H,Chen J

更新日期：2013-07-01 00:00:00

abstract：:A newly developed bone equivalent hydroxyapatite was derived from veterinary bone (VHAP). Sections of 1 cm of six rabbit mandibles were equally replaced by this VHAP graft. Radiological studies by X-ray were performed pre-operatively, immediately, and 1, 2 and 3 months post-operatively. The graft host-bone interface w...

journal_title：Biomaterials

authors： Abdel-Fattah WI,Osiris WG,Mohamed SS,Khalil MR

更新日期：1994-06-01 00:00:00

abstract：:Lesions in the avascular part of 20 canine menisci were repaired by implantation of a porous polyurethane. Seven menisci were not repaired and served as controls. The repair tissue was characterized by biochemical and immunological analysis. The role of vascularity in healing was studied by perfusion of menisci with I...

journal_title：Biomaterials

authors： Klompmaker J,Veth RP,Jansen HW,Nielsen HK,de Groot JH,Pennings AJ,Kuijer R

更新日期：1996-09-01 00:00:00

abstract：:We have prepared a fraction of commercial fetal calf serum whose major component comprises proteins of apparent molecular mass 65-80 kDa. These preparations elicit cell spreading responses in serum-free medium at concentrations similar to those reported for human vitronectin. In addition, we have identified (by a prot...

journal_title：Biomaterials

authors： Lydon MJ,Foulger CA

更新日期：1988-11-01 00:00:00

abstract：:Simultaneous detection of multiple antigens by conventional immunological methods has been limited by the source of primary antibodies. Each antibody should be derived from a different host species (or subclass of immunoglobulin (Ig)) for suppressing the cross-reactions of secondary antibodies. Here we describe an inn...

journal_title：Biomaterials

authors： Iijima M,Matsuzaki T,Yoshimoto N,Niimi T,Tanizawa K,Kuroda S

更新日期：2011-12-01 00:00:00

abstract：:Polyurethane microspheres having diameters in the range 150-1500 microns were prepared by condensation polymerization of toluene diisocyanate (TDI) with poly(tetramethylene glycol) (PTMG) of average mol wt 990 in an aqueous dispersion medium containing dioctyl sulphosuccinate (DOS) as the suspension stabilizer and 1,4...

journal_title：Biomaterials

authors： Thanoo BC,Sunny MC,Jayakrishnan A

更新日期：1991-07-01 00:00:00

abstract：:A limitation with the use of polymers as stent matrices is their inherent mechanical weakness. In this study, a polymeric stent, made from chitosan-based films fixed by genipin which has a cyclic molecular structure, was developed (the genipin stent). The mechanical properties of the genipin stent were investigated; i...

journal_title：Biomaterials

authors： Chen MC,Liu CT,Tsai HW,Lai WY,Chang Y,Sung HW

更新日期：2009-10-01 00:00:00

abstract：:Isostatic compression has rarely been used to load calcium-phosphate biomaterials with therapeutic agents. This report, concerning four processes associating vancomycin, compares isostatic compression with wet granulation, a classical method. In the wet granulation study, vancomycin was associated with biphasic calciu...

journal_title：Biomaterials

authors： Gautier H,Merle C,Auget JL,Daculsi G

更新日期：2000-02-01 00:00:00

abstract：:An insulin delivery system that self-regulates blood glucose levels has the potential to limit hypoglycemic events and improve glycemic control. Glucose-responsive insulin delivery systems have been developed by coupling glucose oxidase with a stimuli-responsive biomaterial. However, the challenge of achieving desirab...

journal_title：Biomaterials

authors： Volpatti LR,Facklam AL,Cortinas AB,Lu YC,Matranga MA,MacIsaac C,Hill MC,Langer R,Anderson DG

更新日期：2021-01-01 00:00:00

abstract：:Herein we describe a bio-inspired, affinity binding alginate-sulfate scaffold, designed for the presentation and sustained release of transforming growth factor beta 1 (TGF-β1), and examine its effects on the chondrogenesis of human mesenchymal stem cells (hMSCs). When attached to matrix via affinity interactions with...

journal_title：Biomaterials

authors： Re'em T,Kaminer-Israeli Y,Ruvinov E,Cohen S

更新日期：2012-01-01 00:00:00

abstract：:Replacing the tissue lost after a stroke potentially provides a new neural substrate to promote recovery. However, significant neurobiological and biotechnological challenges need to be overcome to make this possibility into a reality. Human neural stem cells (hNSCs) can differentiate into mature brain cells, but requ...

journal_title：Biomaterials

authors： Bible E,Qutachi O,Chau DY,Alexander MR,Shakesheff KM,Modo M

更新日期：2012-10-01 00:00:00

abstract：:Bone defects, such as compressive fractures in the vertebral bodies, are frequently treated with acrylic bone cements (e.g., PMMA). Although these biomaterials have sufficient mechanical properties for fixing the fracture, they are non-degradable and do not remodel or integrate with host tissue. In an alternative appr...

journal_title：Biomaterials

authors： Guelcher SA,Srinivasan A,Dumas JE,Didier JE,McBride S,Hollinger JO

更新日期：2008-04-01 00:00:00

abstract：:Permanent male sterilization has been recognized as useful tools for the development of neuter experimental animals and fattening livestock, as well as efficient control of pet overpopulation. Traditional routes such as surgical ways, chemical injections, and anti-fertility vaccines have addressed these crucial proble...

journal_title：Biomaterials

authors： Liu Z,Liu X,Ran X,Ju E,Ren J,Qu X

更新日期：2015-11-01 00:00:00

abstract：:Beads of polytetrafluoroethylene were used to investigate adsorption of thrombin and the influence of the adsorbed protease on a subsequent deposition of fibrinogen. Adsorption of active thrombin was not detected by a specific fluorogenic substrate unless > 0.1 units/ml had been applied. Adsorption was considerably im...

journal_title：Biomaterials

authors： Schlosser E,Simler R,Hörmann H

更新日期：1993-04-01 00:00:00