Biomolecular hybrid of a conducting polymer with DNA: morphology, structure, and doping behavior.

Abstract:

:A poly(o-methoxyaniline) (POMA)/DNA [weight fraction of DNA (W(DNA)) = 0.45] hybrid was prepared by mixing their solutions in sterilized double distilled water. The solution turned green upon aging for a longer time, and the doping of POMA by DNA was complete after about 15 d of aging. The doping was confirmed from the UV-vis spectra where the 599 nm peak of POMA(EB) disappeared and a new peak for a pi to localized polaron band-transition appeared. With increasing aging time the new peak gradually shifted from 674 nm at 3 h to 820 nm at 15 d of mixing and thereafter it remained constant. The absence of a free carrier tail in the UV-vis spectra indicated a coiled structure of POMA in the complex. Circular dichroism spectra of the hybrid solution indicated that the DNA conformation (double helical structure) remained unchanged in the hybrid. The SEM micrograph of the freeze-dried hybrid showed a needle-like morphology of the DNA dispersed in a polymer matrix and it was completely different from the fibrillar network morphology of pure DNA in the solid state. The TEM micrograph indicated a homogeneous dispersion of DNA fibrils in the POMA matrix. The melting temperature of the POMA-DNA hybrid showed an increase compared to that of pure DNA by 5 degrees C, probably caused by an electrostatic interaction between the DNA anion and the POMA radical cation generated in the doping process. WAXS investigations revealed that the DNA crystal structure remained unchanged in the hybrid whereas the POMA crystal structure might be lost. An FT-IR study suggested that interaction occurred between the phosphoric acid group of DNA and a nitrogen atom of POMA through proton transfer from the OH group of the former. A schematic model of the POMA-DNA complex randomly anchoring POMA chains with the DNA molecule was proposed. The dc conductivity of the POMA-DNA complex was found to be ca. 10(-7) S . cm(-1). Hence, this work describes a procedure for making a DNA-conducting polymer hybrid without changing the conformation and structure of DNA. [Diagram: see text]

journal_name

Macromol Biosci

authors

Dawn A,Nandi AK

doi

10.1002/mabi.200400185

subject

Has Abstract

pub_date

2005-05-23 00:00:00

pages

441-50

issue

5

eissn

1616-5187

issn

1616-5195

journal_volume

5

pub_type

杂志文章
  • Crosslinking of trimethylene carbonate and D, L-lactide (co-) polymers by gamma irradiation in the presence of pentaerythritol triacrylate.

    abstract::High-molecular-weight (co)polymers of trimethylene carbonate and D,L-lactide are efficiently crosslinked using PETA during gamma irradiation. Form-stable networks with gel contents of 86 ± 5 to 96 ± 1 are obtained from non-crystalline (co)polymers. Glass transition temperatures and elastic moduli of the networks can b...

    journal_title:Macromolecular bioscience

    pub_type: 杂志文章

    doi:10.1002/mabi.201100031

    authors: Bat E,van Kooten TG,Feijen J,Grijpma DW

    更新日期:2011-07-07 00:00:00

  • Triggered drug release from dynamic microspheres via a protein conformational change.

    abstract::In this study we formed and characterized dynamic hydrogel microspheres in which a protein conformational change was used to control microsphere volume changes and the release of an encapsulated drug. In particular, a specific biochemical ligand, trifluoperazine, induced calmodulin's nanometer scale conformation chang...

    journal_title:Macromolecular bioscience

    pub_type: 杂志文章

    doi:10.1002/mabi.200900382

    authors: King WJ,Pytel NJ,Ng K,Murphy WL

    更新日期:2010-06-11 00:00:00

  • Patterning of a random copolymer of poly[lactide-co-glycotide-co-(epsilon-caprolactone)] by UV embossing for tissue engineering.

    abstract::The random copolymer, poly[lactide-co-glycotide-co-(epsilon-caprolactone)] (PLGACL) diacrylate was prepared by ring-opening polymerization of L-lactide, glycolide, and epsilon-caprolactone initiated with tetra(ethylene glycol). The diacrylated polymers were extensively characterized. With a UV embossing method, these ...

    journal_title:Macromolecular bioscience

    pub_type: 杂志文章

    doi:10.1002/mabi.200500168

    authors: Zhu A,Chen R,Chan-Park MB

    更新日期:2006-01-05 00:00:00

  • Iron Binding and Iron Removal Efficiency of Desferrioxamine Based Polymeric Iron Chelators: Influence of Molecular Size and Chelator Density.

    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

    authors: Hamilton JL,Ul-Haq MI,Creagh AL,Haynes CA,Kizhakkedathu JN

    更新日期:2017-03-01 00:00:00

  • Nanofibers for Biomedical and Healthcare Applications.

    abstract::Unique features of nanofibers provide enormous potential in the field of biomedical and healthcare applications. Many studies have proven the extreme potential of nanofibers in front of current challenges in the medical and healthcare field. This review highlights the nanofiber technologies, unique properties, fabrica...

    journal_title:Macromolecular bioscience

    pub_type: 杂志文章,评审

    doi:10.1002/mabi.201800256

    authors: Rasouli R,Barhoum A,Bechelany M,Dufresne A

    更新日期:2019-02-01 00:00:00

  • New enantiomeric polylactide-block-poly(butylene succinate)-block-polylactides: syntheses, characterization and in situ self-assembly.

    abstract::In situ self-assemblies of new biodegradable triblock PLLA-b-PBS-b-PLLA and PDLA-b-PBS-b-PDLA have been investigated in acetonitrile solution. At first, two series of PLLA-b-PBS-b-PLLA and PDLA-b-PBS-b-PDLA, respectively denoted as the P and Q triblock copolyester series, were prepared with fixed PBS block ((overline)...

    journal_title:Macromolecular bioscience

    pub_type: 杂志文章

    doi:10.1002/mabi.200400227

    authors: Jia L,Yin L,Li Y,Li Q,Yang J,Yu J,Shi Z,Fang Q,Cao A

    更新日期:2005-06-24 00:00:00

  • Multifunctional Sutures with Temperature Sensing and Infection Control.

    abstract::The next-generation sutures should provide in situ monitoring of wound condition such as temperature while reducing surgical site infection during wound closure. In this study, functionalized nanodiamond (FND) and reduced graphene oxide (rGO) into biodegradable polycaprolactone (PCL) are incorporated to develop a new ...

    journal_title:Macromolecular bioscience

    pub_type: 杂志文章

    doi:10.1002/mabi.202000364

    authors: Houshyar S,Bhattacharyya A,Khalid A,Rifai A,Dekiwadia C,Kumar GS,Tran PA,Fox K

    更新日期:2021-01-12 00:00:00

  • Microspheres made of poly(epsilon-caprolactone)-based amphiphilic copolymers: potential in sustained delivery of proteins.

    abstract::Microspheres of amphiphilic multi-block poly(ester-ether)s (PEE)s and poly(ester-ether-amide)s (PEEA)s based on poly(epsilon-caprolactone) (PCL) were investigated as delivery systems for proteins. The interest was mainly focused on the effect of their molecular structure and composition on the overall properties of th...

    journal_title:Macromolecular bioscience

    pub_type: 杂志文章

    doi:10.1002/mabi.200500108

    authors: Quaglia F,Ostacolo L,Nese G,De Rosa G,La Rotonda MI,Palumbo R,Maglio G

    更新日期:2005-10-20 00:00:00

  • Designing Gelatin Methacryloyl (GelMA)-Based Bioinks for Visible Light Stereolithographic 3D Biofabrication.

    abstract::Bioinks play a key role in determining the capability of the biofabricatoin processes and the resolution of the printed constructs. Excellent biocompatibility, tunable physical properties, and ease of chemical or biological modifications of gelatin methacryloyl (GelMA) have made it an attractive choice as bioinks for ...

    journal_title:Macromolecular bioscience

    pub_type: 杂志文章

    doi:10.1002/mabi.202000317

    authors: Kumar H,Sakthivel K,Mohamed MGA,Boras E,Shin SR,Kim K

    更新日期:2021-01-01 00:00:00

  • Microbial Cells with a Fe3 O4 Doped Hydrogel Extracellular Matrix: Manipulation of Living Cells by Magnetic Stimulus.

    abstract::This study aims to develop an effective method to control motile microorganisms and enable their manipulation as functional 'live micro/nano robots'. A novel strategy based on Fe3 O4 nanoparticle-doped alginate hydrogel is developed to fashion an artificial extracellular matrix (ECM) for microbial cells (e.g., Sacchar...

    journal_title:Macromolecular bioscience

    pub_type: 杂志文章

    doi:10.1002/mabi.201600143

    authors: Shi X,Shi Z,Wang D,Ullah MW,Yang G

    更新日期:2016-10-01 00:00:00

  • Biofunctionalized Hydrogel Microscaffolds Promote 3D Hepatic Sheet Morphology.

    abstract::Development of artificial tissues providing the proper geometrical, mechanical, and environmental cues for cells is highly coveted in the field of tissue engineering. Recently, microfabrication strategies in combination with other chemistries have been utilized to capture the architectural complexity of intricate orga...

    journal_title:Macromolecular bioscience

    pub_type: 杂志文章

    doi:10.1002/mabi.201500338

    authors: Kim MH,Kumar SK,Shirahama H,Seo J,Lee JH,Zhdanov VP,Cho NJ

    更新日期:2016-03-01 00:00:00

  • Influence of satellite groups on telechelic antimicrobial functions of polyoxazolines.

    abstract::The antimicrobial activity of poly(alkyloxazoline) telechelics with one quaternary N,N-dimethyldodecylammonium (DDA) end group was found to be greatly controlled by the non-bioactive distal end group, the so-called satellite group. In systematic investigations, the nature of the latter groups was varied to explore the...

    journal_title:Macromolecular bioscience

    pub_type: 杂志文章

    doi:10.1002/mabi.200400169

    authors: Waschinski CJ,Herdes V,Schueler F,Tiller JC

    更新日期:2005-02-23 00:00:00

  • A highly efficient siRNA carrier of PBLG modified hyperbranched PEI.

    abstract::In search for effective non-viral gene vectors for the delivery of siRNA, a copolymer was designed and synthesized by grafting hydrophobic poly(gamma-benzyl L-glutamate) segment (PBLG) to hyperbranched polyethylenimine (PEI-PBLG). PEI-PBLG could efficiently deliver siRNA to cells to silence the targeted gene. Markedly...

    journal_title:Macromolecular bioscience

    pub_type: 杂志文章

    doi:10.1002/mabi.200900249

    authors: Chen J,Tian H,Guo Z,Xia J,Kano A,Maruyama A,Jing X,Chen X

    更新日期:2009-12-08 00:00:00

  • Vitamin Bc -Bearing Hydrophilic Photosensitizer Conjugate for Photodynamic Cancer Theranostics.

    abstract::The accurate diagnosis and proper therapy for cancer are essential to improve the success rate of cancer treatment. Here, we demonstrated that the vitamin Bc -bearing hydrophilic photosensitizer conjugate folic acid-polyethylene glycol-pheophorbideA (FA-PEG-PheoA) has been synthesized for the intracellular diagnosis a...

    journal_title:Macromolecular bioscience

    pub_type: 杂志文章

    doi:10.1002/mabi.201500060

    authors: Kim J,Kim KS,Park SJ,Na K

    更新日期:2015-08-01 00:00:00

  • Tetronic-oligolactide-heparin hydrogel as a multi-functional scaffold for tissue regeneration.

    abstract::A novel cell-supporting scaffold, Tetronic-oligolactide-heparin (TLH) hydrogel, was prepared by coupling heparin to polymerized Tetronic-oligolactide for use in improving tissue regeneration. Aqueous TLH solutions showed thermosensitive behavior, demonstrating potential for use as injectable hydrogels. The content and...

    journal_title:Macromolecular bioscience

    pub_type: 杂志文章

    doi:10.1002/mabi.200800098

    authors: Go DH,Joung YK,Lee SY,Lee MC,Park KD

    更新日期:2008-12-08 00:00:00

  • Butyrate-Loaded Chitosan/Hyaluronan Nanoparticles: A Suitable Tool for Sustained Inhibition of ROS Release by Activated Neutrophils.

    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

    authors: Sacco P,Decleva E,Tentor F,Menegazzi R,Borgogna M,Paoletti S,Kristiansen KA,Vårum KM,Marsich E

    更新日期:2017-11-01 00:00:00

  • Composite PLA/PEG/nHA/Dexamethasone Scaffold Prepared by 3D Printing for Bone Regeneration.

    abstract::3D printing has become an essential part of bone tissue engineering and attracts great attention for the fabrication of bioactive scaffolds. Combining this rapid manufacturing technique with chemical precipitation, biodegradable 3D scaffold composed of polymer matrix (polylactic acid and polyethylene glycol), ceramics...

    journal_title:Macromolecular bioscience

    pub_type: 杂志文章

    doi:10.1002/mabi.201800068

    authors: Li X,Wang Y,Wang Z,Qi Y,Li L,Zhang P,Chen X,Huang Y

    更新日期:2018-06-01 00:00:00

  • Nanofiber formation of hydroxylpropylcellulose (HPC).

    abstract::The aggregative behaviors of hydroxypropylcellulose (HPC) molecules in aqueous solution and on substrates have been observed by employing laser light scattering (LLS) and, after deposition on a mica surface, atomic force microscopy (AFM). LLS studies showed that the HPC molecules formed large aggregates through self-a...

    journal_title:Macromolecular bioscience

    pub_type: 杂志文章

    doi:10.1002/mabi.200600067

    authors: Yan L,Lin W,Bangal PR

    更新日期:2006-07-14 00:00:00

  • Non-Covalently Stabilized Alginate Hydrogels as Functional Cell Scaffold Material.

    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

    authors: Kühn PT,Meijer TL,Schiavon I,van Poll M,van Aken J,Groen S,Kuijer R,van Kooten TG,van Rijn P

    更新日期:2016-11-01 00:00:00

  • Zwitterionic Functionalizable Scaffolds with Gyroid Pore Architecture for Tissue Engineering.

    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

    authors: Kostina NY,Blanquer S,Pop-Georgievski O,Rahimi K,Dittrich B,Höcherl A,Michálek J,Grijpma DW,Rodriguez-Emmenegger C

    更新日期:2019-04-01 00:00:00

  • Suppression of cell and platelet adhesion to star-shaped 8-armed poly(ethylene glycol)-poly(L-lactide) block copolymer films.

    abstract::To explore the potential of a star-shaped 8-armed poly(ethylene glycol)35K-block-poly(L-lactide)37K (8-armed PEG35K-b-PLLA37K: M(n) of PEG = 35 000, M(n) of PLLA = 37 000) film as a novel bioabsorbable adhesion-prevention membrane, the water structure, surface contact angle, protein adsorption, and cell and platelet a...

    journal_title:Macromolecular bioscience

    pub_type: 杂志文章

    doi:10.1002/mabi.200500249

    authors: Nagahama K,Ohya Y,Ouchi T

    更新日期:2006-06-16 00:00:00

  • Synthetic, Chemically Defined Polymer-Coated Microcarriers for the Expansion of Human Mesenchymal Stem Cells.

    abstract::Mesenchymal stem cells (MSC), also called marrow stromal cells, are adult cells that have attracted interest for their potential uses in therapeutic applications. There is a pressing need for scalable culture systems due to the large number of cells needed for clinical treatments. Here, a tailorable thin polymer coati...

    journal_title:Macromolecular bioscience

    pub_type: 杂志文章

    doi:10.1002/mabi.201800299

    authors: Krutty JD,Dias AD,Yun J,Murphy WL,Gopalan P

    更新日期:2019-02-01 00:00:00

  • Cloning of poly(aspartic acid) (PAA) hydrolase-1 gene from Pedobacter sp. KP-2 and hydrolysis of thermally synthesized PAA by its gene product.

    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

    authors: Hiraishi T,Masuda E,Kanayama N,Nagata M,Doi Y,Abe H,Maeda M

    更新日期:2009-01-09 00:00:00

  • Mucin macromolecules in normal, adenomatous, and carcinomatous colon: evidence for the neotransformation.

    abstract::Mucins are high molecular-weight glycoproteins having oligosaccharides attached to serine or threonine residues of the mucin core protein backbone by O-glycosidic linkages. They are major components of mucus, covering the luminal surfaces of epithelial respiratory, gastrointestinal and reproductive tracts, and respons...

    journal_title:Macromolecular bioscience

    pub_type: 杂志文章,评审

    doi:10.1002/mabi.200300099

    authors: Aksoy N,Akinci OF

    更新日期:2004-05-17 00:00:00

  • Phosphodiester Hydrogels for Cell Scaffolding and Drug Release Applications.

    abstract::Given the major structural role phosphodiesters play in the organism it is surprising they have not been more widely adopted as a building block in sophisticated biomimetic hydrogels and other biomaterials. The potential benefits are substantial: phosphoester-based materials show excellent compatibility with blood, ce...

    journal_title:Macromolecular bioscience

    pub_type: 杂志文章

    doi:10.1002/mabi.201900090

    authors: Dera R,Diliën H,Billen B,Gagliardi M,Rahimi N,Van Den Akker NMS,Molin DGM,Grandfils C,Adriaensens P,Guedens W,Cleij TJ

    更新日期:2019-07-01 00:00:00

  • Tough, in-situ thermogelling, injectable hydrogels for biomedical applications.

    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

    authors: Jalani G,Rosenzweig DH,Makhoul G,Abdalla S,Cecere R,Vetrone F,Haglund L,Cerruti M

    更新日期:2015-04-01 00:00:00

  • Thermosensitive macroporous cryogels functionalized with bioactive chitosan/bemiparin nanoparticles.

    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

    authors: Peniche H,Reyes-Ortega F,Aguilar MR,Rodríguez G,Abradelo C,García-Fernández L,Peniche C,San Román J

    更新日期:2013-11-01 00:00:00

  • Effects of stereo-regularity of multiblock co-poly(rac-lactide)s on stereo-complex microparticles and their insulin delivery.

    abstract::Uniform stereo-complex microparticles ranging from nanometer to micrometer size are prepared by using stereo multiblock co-poly(rac-lactide)s (smb-PLAs) with different stereo-regularity. At comparable molecular weights, as the smb-PLA stereo-regularity decreases from 88% to 76%, the crystallinity of the microparticles...

    journal_title:Macromolecular bioscience

    pub_type: 杂志文章

    doi:10.1002/mabi.200500157

    authors: Hu J,Tang Z,Qiu X,Han Y,Du Q,Chen X,Jing X

    更新日期:2005-12-15 00:00:00

  • The effect of conjugating RGD into 3D alginate hydrogels on adipogenic differentiation of human adipose-derived stromal cells.

    abstract::The effects of RGD peptide conjugation to alginate hydrogel on the adipogenic differentiation of ASCs was investigated. After 3 d of culture, RGD-modified alginate hydrogels significantly stimulated FAK and integrin α1 gene expressions and vinculin expression in ASCs. In addition, RGD-modified alginate hydrogels signi...

    journal_title:Macromolecular bioscience

    pub_type: 杂志文章

    doi:10.1002/mabi.201000479

    authors: Kang SW,Cha BH,Park H,Park KS,Lee KY,Lee SH

    更新日期:2011-05-12 00:00:00

  • Unconventional methyl galactan synthesized via the thexyldimethylsilyl intermediate: preparation, characterization, and properties.

    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

    authors: Koschella A,Inngjerdingen K,Paulsen BS,Morris GA,Harding SE,Heinze T

    更新日期:2008-01-09 00:00:00