A novel route to in‐situ incorporation of silver nanoparticles into supramolecular hydrogel networks

A novel strategy was developed for the in situ incorporation of silver nanoparticles into the supramolecular hydrogel networks, in which colloidally stable silver hydrosols were firstly prepared in the presence of an amphiphilic block copolymer of poly(oxyethylene)-poly(oxypropylene)-poly(oxyethylene) and then mixed with aqueous solution of α-cyclodextrin. The analyses from rheology, X-ray diffraction, and scanning electron microscopy confirmed the formation of the supramolecular-structured hydrogels hybridized with silver nanoparticles. In particular, the colloidal stability of the resultant silver hydrosol and its gelation kinetics in the presence of α-cyclodextrin as well as the viscoelastic properties of the resultant hybrid hydrogel were investigated under various concentrations of the used block copolymer. It was found that the used block copolymer could act not only as the effective reducing and stabilizing agents for the preparation of the silver hydrosol but also as the effective guest molecule for the supramolecular self-assembly with α-cyclodextrin. In addition, the effects of silver nanoparticles on the gelation process and the hydrogel strength were also studied. Such a hybrid hydrogel material could show a good catalytic activity for the reduction of methylene blue dye by sodium borohydride.

[1]  Li Yan,et al.  UV photopolymerized hydrogels with β-cyclodextrin moieties , 2008 .

[2]  Wei Jiang,et al.  Embedding magnetic nanoparticles into polysaccharide-based hydrogels for magnetically assisted bioseparation. , 2007, Chemphyschem : a European journal of chemical physics and physical chemistry.

[3]  Yu-Chen Huang,et al.  Swelling and antibacterial properties for the superabsorbent hydrogels containing silver nanoparticles , 2007 .

[4]  Dajun Chen,et al.  Preparation of a novel pH-responsive silver nanoparticle/poly (HEMA-PEGMA-MAA) composite hydrogel , 2007 .

[5]  Li‐Ming Zhang,et al.  Studies of sodium humate/polyacrylamide/clay hybrid hydrogels. I. Swelling and rheological properties of hydrogels , 2007 .

[6]  Bing Xu,et al.  A supramolecular-hydrogel-encapsulated hemin as an artificial enzyme to mimic peroxidase. , 2007, Angewandte Chemie.

[7]  Hongshui Wang,et al.  Preparation of silver nanoparticles in water-in-oil AOT reverse micelles. , 2006, Journal of colloid and interface science.

[8]  Kam W Leong,et al.  Self-assembled supramolecular hydrogels formed by biodegradable PEO-PHB-PEO triblock copolymers and alpha-cyclodextrin for controlled drug delivery. , 2006, Biomaterials.

[9]  Li Yan,et al.  Fabrication of novel supramolecular hydrogels with high mechanical strength and adjustable thermosensitivity. , 2006, The journal of physical chemistry. B.

[10]  S. Mann,et al.  Hybrid Biocomposites Based on Calcium Phosphate Mineralization of Self‐Assembled Supramolecular Hydrogels , 2006 .

[11]  Li‐Ming Zhang,et al.  Supramolecular Hydrogels Induced Rapidly by Inclusion Complexation of Poly(ε-caprolactone)−Poly(Ethylene Glycol)−Poly(ε-caprolactone) Block Copolymers with α-Cyclodextrin in Aqueous Solutions , 2006 .

[12]  Wen-Fu Lee,et al.  Preparation and properties of nanocomposite hydrogels containing silver nanoparticles by ex situ polymerization , 2006 .

[13]  S. Shanmugam,et al.  A novel single step chemical route for noble metal nanoparticles embedded organic–inorganic composite films , 2006 .

[14]  Ming Yang,et al.  Novel Silver/Poly(vinyl alcohol) Nanocomposites for Surface‐Enhanced Raman Scattering‐Active Substrates , 2005 .

[15]  Neralagatta M Sangeetha,et al.  Supramolecular gels: functions and uses. , 2005, Chemical Society reviews.

[16]  Marcelo A. da Silva,et al.  Solvent-induced lysozyme gels: rheology, fractal analysis, and sol-gel kinetics. , 2005, Journal of colloid and interface science.

[17]  Bing Xu,et al.  Self-assembly of small molecules affords multifunctional supramolecular hydrogels for topically treating simulated uranium wounds. , 2005, Chemical communications.

[18]  D. Evanoff,et al.  Synthesis and optical properties of silver nanoparticles and arrays. , 2005, Chemphyschem : a European journal of chemical physics and physical chemistry.

[19]  S. Stupp,et al.  Coassembly of amphiphiles with opposite peptide polarities into nanofibers. , 2005, Journal of the American Chemical Society.

[20]  S. Hsu,et al.  Enhanced Thermal and Mechanical Properties in Polyurethane/Au Nanocomposites , 2004 .

[21]  N. Pieczonka,et al.  Gold nanoparticle embedded, self-sustained chitosan films as substrates for surface-enhanced Raman scattering. , 2004, Langmuir : the ACS journal of surfaces and colloids.

[22]  A. Ojida,et al.  Molecular recognition in a supramolecular hydrogel to afford a semi-wet sensor chip. , 2004, Journal of the American Chemical Society.

[23]  S. Gunasekaran,et al.  Scaling and fractal analysis of viscoelastic properties of heat-induced protein gels , 2004 .

[24]  Krista L. Niece,et al.  Selective Differentiation of Neural Progenitor Cells by High-Epitope Density Nanofibers , 2004, Science.

[25]  A. Hamilton,et al.  Water gelation by small organic molecules. , 2004, Chemical reviews.

[26]  Ick Chan Kwon,et al.  Supramolecular hydrogel formation based on inclusion complexation between poly(ethylene glycol)-modified chitosan and alpha-cyclodextrin. , 2004, Macromolecular bioscience.

[27]  J. Nedeljković,et al.  Fabrication and Characterization of Silver−Polyvinyl Alcohol Nanocomposites , 2003 .

[28]  Bing Xu,et al.  Supramolecular hydrogels respond to ligand-receptor interaction. , 2003, Journal of the American Chemical Society.

[29]  Shuguang Zhang.  Fabrication of novel biomaterials through molecular self-assembly , 2003, Nature Biotechnology.

[30]  J. Satcher,et al.  Homogeneous Incorporation of Metal Nanoparticles into Ordered Macroporous Carbons , 2003 .

[31]  Kam W Leong,et al.  Injectable drug-delivery systems based on supramolecular hydrogels formed by poly(ethylene oxide)s and alpha-cyclodextrin. , 2003, Journal of biomedical materials research. Part A.

[32]  M. Sastry,et al.  Highly Oriented Gold Nanoribbons by the Reduction of Aqueous Chloroaurate Ions by Hexadecylaniline Langmuir Monolayers , 2003 .

[33]  Frank Caruso,et al.  Metallodielectric opals of layer-by-layer processed coated colloids , 2002 .

[34]  H. Choi,et al.  Rapid induction of thermoreversible hydrogel formation based on poly(propylene glycol)-grafted dextran inclusion complexes , 2002 .

[35]  A. Fujishima,et al.  Metal-Coated Colloidal Crystal Film as Surface-Enhanced Raman Scattering Substrate† , 2002 .

[36]  Shuguang Zhang,et al.  Molecular self-assembly of surfactant-like peptides to form nanotubes and nanovesicles , 2002, Proceedings of the National Academy of Sciences of the United States of America.

[37]  A. Fujishima,et al.  Fabrication of a metal-coated three-dimensionally ordered macroporous film and its application as a refractive index sensor , 2002 .

[38]  L. Liz‐Marzán,et al.  Fully Accessible Gold Nanoparticles within Ordered Macroporous Solids , 2002 .

[39]  K. Müllen,et al.  Gold Nanoparticle/Polyphenylene Dendrimer Composite Films: Preparation and Vapor‐Sensing Properties , 2002 .

[40]  R. Weiss,et al.  Organogels and Low Molecular Mass Organic Gelators , 2000 .

[41]  Ramesh C. Patel,et al.  Stable Silver Clusters and Nanoparticles Prepared in Polyacrylate and Inverse Micellar Solutions , 2000 .

[42]  N. Jana,et al.  Redox Catalytic Property of Still-Growing and Final Palladium Particles: A Comparative Study , 1999 .

[43]  N. Jana,et al.  Organized media as redox catalysts , 1998 .

[44]  G. Wenz,et al.  Kinetics and Thermodynamics of the Inclusion of Ionene-6,10 in α-Cyclodextrin in an Aqueous Solution , 1997 .

[45]  P. Baglioni,et al.  α-Cyclodextrin/Polyethylene Glycol Polyrotaxane: A Study of the Threading Process , 1997 .

[46]  James R. Heath,et al.  Synthesis and Characterization of Hydrophobic, Organically-Soluble Gold Nanocrystals Functionalized with Primary Amines , 1996 .

[47]  A. Harada.  Preparation and structures of supramolecules between cyclodextrins and polymers , 1996 .

[48]  Liang Chang,et al.  Studies on the preparation and properties of conductive polymers. VIII. Use of heat treatment to prepare metallized films from silver chelate of PVA and PAN , 1995 .

[49]  T. A. Hatton,et al.  Micellization of poly(ethylene oxide)-poly(propylene oxide)-poly(ethylene oxide) triblock copolymers in aqueous solutions: Thermodynamics of copolymer association , 1994 .

[50]  M. Pileni,et al.  In situ synthesis of silver nanocluster in AOT reverse micelles , 1993 .

[51]  A. Henglein,et al.  Formation of colloidal silver by "push-pull" reduction of silver(1+) , 1993 .

[52]  A. Harada,et al.  Preparation and properties of inclusion complexes of polyethylene glycol with .alpha.-cyclodextrin , 1993 .

[53]  H. Henning Winter,et al.  Analysis of Linear Viscoelasticity of a Crosslinking Polymer at the Gel Point , 1986 .

[54]  I. Hamachi,et al.  Semi-wet peptide/protein array using supramolecular hydrogel , 2004, Nature materials.