Abstract:
:Fluorescent dye labeled unfunctionalized and functionalized poly(n-butylcyanoacrylate) nanoparticles were prepared using a miniemulsion technique. Amino acid and methoxyPEG functionalization could be introduced by using aqueous solutions as an initiator for the anionic polymerization in the heterophase. All the particles prepared had sizes smaller than 250 nm and negative zeta-potentials. The molar mass distribution of the polymer was dependent on the acid used as the continuous phase and the initiator solution applied. Cells of three lines (HeLa, Jurkat and mesenchymal stem cells) were incubated with the particles. The molar mass of the polymer determined the onset and extent of apoptosis, and the total uptake was determined by the size and functionalization of the particles. Different uptake kinetics were obtained with HeLa and Jurkat cells after incubation with the same particle batch. The intracellular particle distribution, visualized by confocal laser scanning microscopy, did not show significant differences for either of the cell lines or particle batches.
journal_name
Macromol Bioscijournal_title
Macromolecular bioscienceauthors
Weiss CK,Lorenz MR,Landfester K,Mailänder Vdoi
10.1002/mabi.200700046subject
Has Abstractpub_date
2007-07-09 00:00:00pages
883-96issue
7eissn
1616-5187issn
1616-5195journal_volume
7pub_type
杂志文章abstract::Branched polyethylenimine (25 kDa) is thiolated and compared with redox-sensitive crosslinked derivatives. Both polymers thiol contents are assessed; the thiolated polymers have 390-2300 mmol SH groups/mol, whereas the crosslinked polymers have lower thiol contents. Cytotoxicity assays show that both modified polymers...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201300103
更新日期:2013-09-01 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
abstract::In the present study, a pH responsive dendritic polyglycerol nanogel (dPG-NG) is developed to measure the pH values inside the hair follicle (HF) using an ex vivo porcine ear model. The macromolecular precursors are labeled with a pH sensitive indodicarbocyanine dye (pH-IDCC) and a control dye (indocarbocyanine dye: I...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201600505
更新日期:2017-10-01 00:00:00
abstract::Poly(N-methylvinylamines) with secondary amines can form complexes with plasmid DNA (pDNA) and provide transfection efficiency in HeLa cells in the same order as linear polyethyleneimine but with higher cell viability. Chemical modifications of poly(N-methylvinylamine) backbones are performed to further improve transf...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201700353
更新日期:2018-04-01 00:00:00
abstract::The present review is aimed at elucidating relatively new aspects of mucoadhesion/mucus interaction and related phenomena that emerged from a Mucoadhesion workshop held in Munster on 2-3 September 2015 as a satellite event of the ICCC 13th-EUCHIS 12th. After a brief outline of the new issues, the focus is on mucus des...
journal_title:Macromolecular bioscience
pub_type: 杂志文章,评审
doi:10.1002/mabi.201600534
更新日期:2017-08-01 00:00:00
abstract::The design and preparation of highly efficient drug delivery platforms using green methodologies is at the forefront of nanotherapeutics research. POxylated polyurea dendrimers are efficiently synthesized using a supercritical-assisted polymerization in carbon dioxide. These fluorescent, pH-responsive and water-solubl...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201500131
更新日期:2015-08-01 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::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::The remedy for infected chronic wounds such as diabetic foot ulcers is more complicated particularly in the case of patients with an inefficient immune system. Also, fighting against microbial infections in the wound site by available antibiotics may not be effective because of emerging antibiotic resistance propertie...
journal_title:Macromolecular bioscience
pub_type: 杂志文章,评审
doi:10.1002/mabi.201900362
更新日期:2020-04-01 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::Thermosensitive polymers enable externally controllable biomolecular interactions but hysteresis effects hamper the reversibility and repeated use of these materials. To quantify the temperature-dependent interactions and hysteresis effects, an optical adhesion assay based on poly(ethylene glycol) microgels (soft coll...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.202000186
更新日期:2020-10-01 00:00:00
abstract::In this work, it is first reported that the poly (3-hydroxybutyric acid) (PHB) oligomer with a few degrees of polymerization possesses effective antibacterial and antifungal properties. Two preparation methods for the PHB oligomer are described, namely, one-step ring-opening polymerization of β-butyrolactone and extra...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201800432
更新日期:2019-05-01 00:00:00
abstract::Plant derived flavonoids have not been well explored in tissue engineering applications due to difficulties in efficient formulations with biomaterials for controlled presentation. Here, the authors report that surface coating of epigallocatechin gallate (EGCG) on polymeric substrates including poly (L-lactic acid) (P...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201800392
更新日期:2019-04-01 00:00:00
abstract::Diblock and multiblock copolymers composed of a poly(D,L-lactide) (PLA) or poly(trimethylene carbonate) (PTMC) core with a hydrophilic chain of poly(ethylene glycol) (PEG) were prepared. These copolymers, in which the core is connected to PEG through a polyfunctional molecule such as citric, mucic, or tartaric acid, m...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.200600165
更新日期:2006-12-08 00:00:00
abstract::N-Acetyl-l-cysteine (NAC)-capped poly(methyl methacrylate)-b-polycaprolactone block copolymer (PMMA-b-PCL-NAC) was prepared using the previously described one-pot photoinduced sequential CuAAC/thiol-ene double click procedure. PMMA-b-PCL-NAC had previously shown good applicability as a matrix for cell adhesion of cell...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201500099
更新日期:2015-09-01 00:00:00
abstract::A generally applicable strategy to obtain mechanically robust hydrogels for the incorporation and containment of functional reporter bacteria for the microarray and microparticle-based detection and signaling of N-acyl homoserine lactone autoinducers (3OC12 HSL) at relevant concentrations is reported. For reinforcing ...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201700176
更新日期:2017-11-01 00:00:00
abstract::A simple, robust one pot procedure for the preparation of waterborne multifunctional poly(vinyl amine)s (PVAms) is presented. By post-polymerization modification of PVAm with a bifunctional coupler and functional couplers cationic, reactive azetidinium groups, and alkyl chains are introduced in the side chains of PVAm...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201300576
更新日期:2014-08-01 00:00:00
abstract::Solution-grown chain-folded lamellar single crystals of poly(tetramethylene adipate) (PTMA) were prepared from a dilute solution of 2-methyl-1-propanol by isothermal crystallization. PTMA crystals were hexagonal-shaped and polyethylene decoration of the crystals resulted in a "six cross-sector" surface morphology and ...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.200300086
更新日期:2004-03-15 00:00:00
abstract::Protein-polymer conjugates are widely used to improve the pharmacokinetic properties of therapeutic proteins. Commercially available conjugates employ poly(ethylene glycol) (PEG) as the protective polymer; however, PEG has a number of shortcomings, including non-biodegradability and immunogenicity, that call for the d...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201600377
更新日期:2017-10-01 00:00:00
abstract::A novel elastic scaffold that simulates the deformability of annulus fibrosus (AF) and has good biocompatibility was developed. The scaffold was formed of a malic acid-based polyester poly(1,8-octanediol malate) (POM), which was synthesized by direct polycondensation. The tensile strength of POM gradually increased wi...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.200700053
更新日期:2007-11-12 00:00:00
abstract::Biodegradable hydrogels were synthesized by the click reaction of 4-arm azido-terminated PEG differing in molecular weight (2,100 and 8,800) and two alkyne-terminated peptides: [alkyne]-GFLGK-[alkyne] and ([alkyne]-GFLG)(2)K. The physical properties of in situ formed hydrogels were examined. The hydrogels were highly ...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.200900295
更新日期:2010-04-08 00:00:00
abstract::Stereoblock poly(lactic acid) consisting of D- and L-lactate stereosequences can be successfully synthesized by solid-state polycondensation of a 1:1 mixture of poly(L-lactic acid) and poly(D-lactic acid). In the first step, melt-polycondensation of L- and D-lactic acids is conducted to synthesize poly(L-lactic acid) ...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.200400121
更新日期:2005-01-14 00:00:00
abstract::A HBSP has been designed as a novel bifunctional enzyme model with SOD and GPx activity by host/guest-directed self-assembly of MnTPyP-M-Ad and 6-Te-diCD. The structure of the host/guest complex was elucidated by (1) H NMR spectra, and the HBSP was characterized by SEM, DLS and measurement of catalytic properties. In ...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201000478
更新日期:2011-06-14 00:00:00
abstract::Currently, there is no gadolinium-based contrast agent available for conventional magnetic resonance imaging (MRI) detection of amyloidal beta (Aβ) plaques in Alzheimer's disease (AD). Its timely finding would be vital for patient survival and quality of life. Curcumin (CUR), a common Indian spice effectively binds to...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201500062
更新日期:2015-09-01 00:00:00
abstract::Three types of multilayer films made from poly(L-lysine)/hyaluronan, chitosan/hyaluronan, and poly(allylamine hydrochloride)/poly(L-glutamic acid), were used to investigate the interplay between film mechano-chemical properties and cell adhesion. We showed that C2C12 myoblast adhesion and proliferation depended on the...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201000301
更新日期:2011-01-10 00:00:00
abstract::Amylose selectively includes poly(L-lactide) (PLLA) among the poly(lactide)s (PLAs) to produce an inclusion complex when the phosphorylase-catalyzed polymerization of α-D-glucose 1-phosphate is performed in the presence of PLLA, poly(D-lactide) (PDLA), or poly(DL-lactide) (PDLLA) (vine-twining polymerization). This re...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201100133
更新日期:2011-10-10 00:00:00
abstract::Extraction processes of natural fibers can be performed by different procedures that include mechanical, chemical and biological methods. Each method presents different advantages or drawbacks according to the amount of fiber produced or the quality and properties of fiber bundles obtained. In this study, biological n...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.200400041
更新日期:2004-10-20 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::Reaction of a beta-(1 --> 4) linked galactan with TDMS chloride followed by methylation and desilylation yields methyl galactans with unconventional functionalization patterns. The products were characterized via FTIR and NMR of the intact polymer and by CE after controlled depolymerization. A TDMS-derivatized methyl ...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.200700120
更新日期:2008-01-09 00:00:00
abstract::A tissue-engineering scaffold resembling the structure of the natural extracellular matrix can often facilitate tissue regeneration. Nerve and tendon are oriented micro-scale tissue bundles. In this study, a method combining injection molding and thermally induced phase separation techniques is developed to create sin...
journal_title:Macromolecular bioscience
pub_type: 杂志文章
doi:10.1002/mabi.201200004
更新日期:2012-06-01 00:00:00