Abstract:
:Implant failure is one of the major concerns in the biomaterials field. Several factors have been related to the fail but in general these biomaterials do not exhibit comparable physical, chemical or biological properties to natural tissues and ultimately, these devices can lead to chronic inflammation and foreign-body reactions. Starch-based biodegradable materials and composites have shown promising properties for a wide range of biomedical applications as well as a reduced capacity to elicit a strong reaction from immune system cells in vitro. In this work, blends of corn starch with ethylene vinyl alcohol (SEVA-C), cellulose acetate (SCA) and polycaprolactone (SPCL), as well as hydroxyapatite (HA) reinforced starch-based composites, were investigated in vivo. The aim of the work was to assess the host response evoked for starch-based biomaterials, identifying the presence of key cell types. The tissues surrounding the implant were harvested together with the material and processed histologically for evaluation using immunohistochemistry. At implant retrieval there was no cellular exudate around the implants and no macroscopic signs of an inflammatory reaction in any of the animals. The histological analysis of the sectioned interface tissue after immunohistochemical staining using ED1, ED2, CD54, MHC class II and alpha/beta antibodies showed positively stained cells for all antibodies, except for alpha/beta for all the implantation periods, where it was different for the various polymers and for the period of implantation. SPCL and SCA composites were the materials that stimulated the greatest cellular tissue responses, but generally biodegradable starch-based materials did not induce a severe reaction for the studied implantation times, which contrasts with other types of degradable polymeric biomaterials.
journal_name
Macromol Bioscijournal_title
Macromolecular bioscienceauthors
Marques AP,Reis RL,Hunt JAdoi
10.1002/mabi.200500010subject
Has Abstractpub_date
2005-08-12 00:00:00pages
775-85issue
8eissn
1616-5187issn
1616-5195journal_volume
5pub_type
杂志文章abstract::Tissue damage caused by excessive amounts of neutrophil-derived reactive oxygen species (ROS) occurs in many inflammatory diseases. Butyrate is a short-chain fatty acid (SCFA) with known anti-inflammatory properties, able to modulate several neutrophil functions. Evidence is provided here that butyrate inhibits neutro...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201700214
更新日期:2017-11-01 00:00:00
abstract::This study presents the reactive self-assembly of isocyanate functional and amphiphilic six-arm, star-shaped polyether prepolymers in water into nanogels. Intrinsic molecular amphiphilicity, mainly driven by the isophorone moiety at the distal endings of the star-shaped molecules, allows for the preparation of spheric...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201800094
更新日期:2018-10-01 00:00:00
abstract::Amino acid ester substituted polyphosphazenes are osteoactive benefiting from their phosphorus-containing chemical structure, which highlights interests in bone tissue engineering. To correlate their chemical structures with cell activities, in this study, poly[(ethyl alanato)0.3 (ethyl glycinato)0.7 phosphazene] (PAG...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201800464
更新日期:2019-06-01 00:00:00
abstract::Amylose-fatty acid inclusion complexes can be easily prepared by simple mixing in hot aqueous solutions. Above a critical chain length (C6) of the fatty acid insoluble complexes between amylose and each fatty acid (C8, C10, C12, C14, C16) were precipitated from the solution, and characterized by FT-IR, XRD, DSC, and S...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201400464
更新日期:2015-05-01 00:00:00
abstract::Biopolymers are an attractive class of compounds for being used in biomedical applications as they are widely available from biomass. Their drawback is the lack of mechanical stability and the ability to tune this properly. Covalent chemical cross-linking is an often used approach but it limits usability due to legisl...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201600214
更新日期:2016-11-01 00:00:00
abstract::Novel temperature-sensitive poly(N-isopropylacrylamide)/amine-terminated polyamidoamine dendrimer G6-NH2 hydrogels with fast responsive properties were synthesized by forming semi-interpenetrating polymeric networks. In contrast to the conventional PNIPA hydrogel, these new gels showed rapid shrinking rate at the temp...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.200400003
更新日期:2004-06-25 00:00:00
abstract::Cells in physiological 3D environments differ considerably in morphology and differentiation from those in 2D tissue culture. Naturally derived polymer systems are frequently used to study cells in 3D. These 3D matrices are complex with respect to their chemical composition, mechanical properties, and geometry. Theref...
journal_title:Macromolecular bioscience
pub_type: 杂志文章,评审
doi:10.1002/mabi.201200132
更新日期:2012-10-01 00:00:00
abstract::New data are constantly gathered to show the role of oxidative stress and the involvement of reactive oxygen species in the pathogenesis of degenerative diseases. InsP6 is able to coordinate iron metal in order to prevent iron-catalyzed free radical formation. The aim of the present paper is to describe a new syntheti...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.200500136
更新日期:2005-11-04 00:00:00
abstract::Current approaches to generate core-shell nanoparticles for biomedical applications are limited by factors such as synthetic scalability and circulatory desorption of cytotoxic surfactants. Developments in controlled radical polymerization, particularly in dispersed states, represent a promising method of overcoming t...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201800213
更新日期:2018-10-01 00:00:00
abstract::Comb-shaped glycopolymer/peptide bioconjugates are constructed by grafting reduced glutathione (GSH) onto acrylate-functional block glycocopolymers via thiol-ene click chemistry. In aqueous solution, the glycopolymer/GSH bioconjugate self-assembles to sugar-installed spherical micelles. The size of micelles decreases ...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201200274
更新日期:2012-11-01 00:00:00
abstract::Polycations, mimicking activity of antibacterial peptides, belong to an important class of molecules investigated as a support or as an alternative to antibiotics. In this work, studies of modified linear amphiphilic statistical polymethyloxazoline (PMOX) and polyethyleneimine copolymers (PMOX_PEI) series are presente...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201900254
更新日期:2019-12-01 00:00:00
abstract::Silk fibroin is a useful protein polymer for biomaterials and tissue engineering. In this work, porogen leached scaffolds prepared from aqueous and HFIP silk solutions were reinforced through the addition of silk particles. This led to about 40 times increase in the specific compressive modulus and the yield strength ...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.200900358
更新日期:2010-06-11 00:00:00
abstract::Desferrioxamine (DFO) is a clinically approved, high affinity iron chelator used for the treatment of iron overload. Due to its short half-life and toxicity, DFO is administered for 8-12 h per day, 5-7 d per week. In this manuscript, the influence of molecular properties of hyperbranched polyglycerol (HPG)-DFO conjuga...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201600244
更新日期:2017-03-01 00:00:00
abstract::Multicomponent systems for self-assembled molecular gels provide huge opportunities to generate collective or new functions that are not inherent in individual single-component gels. However, gelation tends to require careful and complicated procedures, because, among a myriad of kinetically trapped structures related...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.202000187
更新日期:2020-09-01 00:00:00
abstract::Microbial transglutaminase (mTG) and mushroom tyrosinase (MT) are used to crosslink B. mori silk fibroin/gelatin (SF/G) films. Crosslinked and uncrosslinked SF/G films show no phase separation. The thermal behavior and the conformational structure of SF/G films are strongly affected by blending and enzymatic treatment...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201300156
更新日期:2013-11-01 00:00:00
abstract::Functional hydrophilic microspheres (latex particles) have found various applications in life sciences and in medicine - particularly in latex diagnostic tests. This paper presents a comprehensive review of studies on latex particles with a hydrophilic interfacial layer composed of various hydrophilic polymers with re...
journal_title:Macromolecular bioscience
pub_type: 杂志文章,评审
doi:10.1002/mabi.200500138
更新日期:2005-12-15 00:00:00
abstract::Thermosensitive macroporous scaffolds of poly(N-isopropylacrylamide) (polyNIPA) loaded with chitosan/bemiparin nanoparticles are prepared by the free radical polymerization in cryogenic conditions. Chitosan/bemiparin nanoparticles of 102 ± 6.5 nm diameter are prepared by complex coacervation and loaded into polyNIPA c...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201300184
更新日期:2013-11-01 00:00:00
abstract::Novel chitosan (CHS) and cellulose sulfates (CSs) are studied regarding their mitogenic activity and their protective effect against proteolytic digestion of FGF-2. An intermediate degree of sulfation (DS(S) ) and lower concentration of CHS have superior effect on 3T3 cell growth while the mitogenic activity of CS inc...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201100518
更新日期:2012-06-01 00:00:00
abstract::The control of biofouling, which is the unwanted adsorption of biomolecules and organisms on solid surfaces, is a prerequisite for wider applicability of the functional materials that are currently being used in biomedical industries. One of the frequently used methods for controlling biofouling is the use of surface ...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201800137
更新日期:2018-10-01 00:00:00
abstract::Stereolithography-assisted fabrication of hydrogels of carboxybetaine methacrylamide (CBMAA) and a α,ω-methacrylate poly(d,l-lactide-block-ethylene glycol-block- d,l-lactide) (MA-PDLLA-PEG-PDLLA-MA) telechelic triblock macromer is presented. This technique allows printing complex structures with gyroid interconnected ...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201800403
更新日期:2019-04-01 00:00:00
abstract::The chain length and end groups of linear PEG grafted on smooth surfaces is known to influence protein adsorption and thrombocyte adhesion. Here, it is explored whether established structure function relationships can be transferred to application relevant, rough surfaces. Functionalization of poly(ether imide) (PEI) ...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201300309
更新日期:2013-12-01 00:00:00
abstract::Nanoparticles (NP) represent a promising tool for biomedical applications. Here, sulfonate- and phosphonate-functionalized polystyrene NP are analyzed for their interaction with human monocyte-derived dendritic cells (DC). Immature dendritic cells (iDC) display a higher time- and dose-dependent uptake of functionalize...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201200223
更新日期:2012-12-01 00:00:00
abstract::Interaction of conjugated polymers with liposomes is an attractive approach that benefits from both systems' characteristics such as electroactivity and enhanced interaction with cells. Conjugated polymer-liposome complexes have been investigated for bioimaging, drug delivery, and photothermal therapy. Their fabricati...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.202000103
更新日期:2020-11-01 00:00:00
abstract::Pedobacter sp. KP-2 can degrade and metabolize thermally synthesized alpha,beta-poly(D,L-aspartic acid) (tPAA), which contains 70% of unnatural beta-amide units, with high-molecular-weight. In this study, gene cloning and molecular characterization of PAA hydrolase-1 from KP-2 was carried out. Gene analysis reveals th...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.200800106
更新日期:2009-01-09 00:00:00
abstract::In many industrial applications, inadequate cell attachment can be a limitation, especially when serum-free media are used. Nitrogen-rich plasma-polymerised ethylene (PPE:N) exhibits high concentrations of polar groups that can help to promote the attachment of weakly adherent cell types. Tissue plasminogen activator-...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.200900079
更新日期:2009-10-08 00:00:00
abstract::The design of a novel polymer-modified overlayer composed of PPAPE and GPMS on a silicon wafer for immobilization of DNA molecules is described. After hydroxylation of Si(100) surfaces, GPMS molecules were self-assembled onto these surfaces. PPAPE molecules were then covalently attached to the epoxy-terminated surface...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.200800226
更新日期:2009-05-13 00:00:00
abstract::Metastasis is a pathogenic spread of cancer cells from the primary site to surrounding tissues and distant organs, making it one of the primary challenges for effective cancer treatment and the major cause of cancer mortality. Heparin-based biomaterials exhibit significant inhibition of cancer cell metastasis. In this...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201800409
更新日期:2019-05-01 00:00:00
abstract::3D hydrogels better replicate in vivo conditions, and yield different results from 2D substrates. However, imaging interactions between cells and the hydrogel microenvironment is challenging because of light diffraction and poor focal depth. Here, cryosectioning and vibrating microtomy methods and fixation protocols a...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201600478
更新日期:2017-06-01 00:00:00
abstract::Injectable hydrogels are extensively used in drug delivery and tissue engineering to administer drugs, genes, growth factors and live cells. We report a method to produce tough, in-situ thermogelling, non-toxic, injectable hydrogels made of chitosan and hyaluronic acid co-crosslinked with β-glycerophophate and genipin...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201400406
更新日期:2015-04-01 00:00:00
abstract::Three different microbial wild-type strains are compared with respect to their potential as industrial scale polyhydroxyalkanoate (PHA) producers from the feed stock whey lactose. The halophilic archaeon Haloferax mediterranei as well as two eubacterial strains (Pseudomonas hydrogenovora and Hydrogenophaga pseudoflava...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.200600211
更新日期:2007-02-12 00:00:00