Abstract
Synthesis of RNA-templated Ag/PVA nanobiocomposites of controlled morphology was investigated. Surface morphologies of the composites and size distributions of the nanofillers were analyzed by means of field emission scanning electron microscopy. Interfacial interaction between the different components was followed by monitoring the surface plasmon resonance of silver nanoparticles in nanobiocomposites. The band gap approximations suggested semiconducting behavior of the nanobiocomposites with larger band gap than that of the conventional semiconductors. RNA-stabilized Ag/PVA nanobiocomposites revealed the presence of well-dispersed and spherical Ag nanoparticles in PVA matrix with a size distribution of 14–23 nm. IR spectra of the nanobiocomposites demonstrated the complex behavior of RNA with Ag nanoparticles in the polymer matrix due to the presence of noncovalent interactions (electrostatic/van der Waals) between RNA, Ag, and PVA molecules. The effects of the loading of RNA-capped Ag nanoparticles on the electrical properties of PVA were also observed by analyzing I–V characteristics of nanobiocomposites which displayed a large increase (≈89 %) at low concentration relative to neat PVA. The drastic improvement in optical and electrical properties of the nanobiocomposites indicated their promising applications in nanobiotechnology.
Similar content being viewed by others
References
Alivisatos AP (1996) Semiconductor clusters, nanocrystals, and quantum dots. Science 271:933–937
An J, Yuan X, Luo Q, Wang D (2010) Preparation of chitosan-graft-(methyl methacrylate)/Ag nanocomposite with antimicrobial activity. Polym Int 59:62–70
Arakawa H, Neault JF, Tajmir-Riahi HA (2001) Silver (I) complexes with DNA and RNA studied by Fourier transform infra red spectroscopy and capillary electrophoresis. Biophys J 81:1580–1587
Basu S, Jana S, Pande S, Pal T (2008) Interaction of DNA bases with silver nanoparticles: assembly quantified through SPRS and SERS. J Colloid Interface Sci 321:288–293
Berti L, Burley GA (2008) Nucleic acid and nucleotide-mediated synthesis of inorganic nanoparticles. Nat Nanotechnol 3:81–87
Bozanic DK, Trandafilovic LV, Luyt AS, Djokovic V (2010) Green synthesis and optical properties of silver–chitosan complexes and nanocomposites. React Funct Polym 70:869–873
Bronstein LM, Goerigk G, Kostylev M, Pink M, Khotina IA, Valetsky PM (2004) Structure and catalytic properties of Pt-modified hyper-cross-linked polystyrene exhibiting hierarchical porosity. J Phys Chem B 108:18234–18242
Chatterjee J, Haik Y, Chen CJ (2004) A biocompatible magnetic film: synthesis and characterization. Biomag Res Technol 2:1–3
Chaudhary V, Thakur AK, Bhowmick AK (2011) Improved optical and electrical response in metal–polymer nanocomposites for photovoltaic applications. J Mater Sci 46:6096–6105
Chen PC, Mwakwari SC, Oyelere AK (2008) Gold nanoparticles: from nanomedicine to nanosensing. Nanotechnol Sci Appl 1:45–66
Datta H, Bhowmick AK, Singha NK (2009) Methacrylate/acrylate ABA triblock copolymers by atom transfer radical polymerization; their properties and application as a mediator for organically dispersible gold nanoparticles. Polymer 50:3259–3268
Finnegan EJ, Matzke MA (2003) The small RNA world. J Cell Sci 116:4689–4693
Firkowska I, Giannona S, Rojas-Chapana JA, Luecke K, Brustle O, Giersig M (2008) Biocompatible nanomaterials and nanodevices promising for biomedical applications. In: Giersig M, Khomutov, GB (eds) Nanomaterials for application in medicine and biology. NATO Science and Security Series B: Physics and Biophysics Springer, Dordrecht, pp 1–15
He X, Lin X, Wang K, Chen L, Wu P, Yuan Y (2004) Biocompatible core–shell nanoparticles for biomedicine. In: Nalwa HS (ed) Encyclopedia of nanoscience and nanotechnology. American Scientific Publishers, Norwood, pp 235–253
Hentze MW, Izaurralde E, Seraphin B (2000) A new era for the RNA world. EMBO Rep 1:394–398
Kim D, Park S, Lee JH, Jeong YY, Jon S (2007) Antibiofouling polymer-coated gold nanoparticles as a contrast agent for in vivo X-ray computed tomography imaging. J Am Chem Soc 129:7661–7665
Kumar A, Jakhmola A (2007) RNA-mediated fluorescent Q-PbS nanoparticles. Langmuir 23:2915–2918
Kumar A, Kumar V (2008) RNA-templated colloidal CdS nanostructures. J Phys Chem C 112:3633–3640
Levy R (2004) Rational and combinatorial design of peptide capping ligands for gold nanoparticles. J Am Chem Soc 126:10076–10084
Li S, Zhang Y, Xu X, Zhang L (2011) Triple helical polysaccharide-induced good dispersion of silver nanoparticles in water. Biomacromolecules 2:2864–2871
Mbhele ZH, Salemane MG, Sittert CGCEV, Nedeljkovic JM, Djokovic V, Luyt AS (2003) Fabrication and characterization of silver–polyvinyl alcohol nanocomposites. Chem Mater 15:5019–5024
Nath S, Ghosh SK, Kundu S, Praharaj S, Panigrahi S, Pal T (2006) Is gold really softer than silver? HSAB principle revisited. Nanopart Res 8:111–116
Osada Y, Gong J-P (1998) Soft and wet materials: polymer gels. Adv Mater 10:827–837
Pankey GA, Sabath LD (2004) Clinical relevance of bacteriostatic versus bactericidal mechanism of action in the treatment of gram positive bacteria infections. Clin Infect Dis 38:864–870
Park S-J, Lazarides AA, Mirkin CA, Brazis PW, Kannewurf CR, Letsinger RL (2000) The electrical properties of gold nanoparticle assemblies linked by DNA. Angew Chem Int Ed 39:3845–3848
Routh P, Mukherjee P, Nandi AK (2009) RNA-poly(o-methoxyaniline) hybrid templated growth of nanoparticles and nanojacketing: physical and electronic properties. Langmuir 26:5093–5100
Roy N, Bhowmick AK (2012) In situ preparation, morphology and electrical properties of carbon nanofiber/polydimethylsiloxane nanocomposites. J Mater Sci 47:272–281
Streetman B, Banerjee S (2000) Solid state electronic devices, 5th edn. Prentice Hall, Upper Saddle River
Tiwari PM, Vig K, Dennis VA, Singh SR (2011) Functionalized gold nanoparticles and their biomedical applications. Nanomaterials 1:31–63
Acknowledgments
The financial support of IIT, Patna for performing this study is gratefully acknowledged. VC is thankful to the Director, IIT Patna, for providing the laboratory and instrumentation facilities. Prof. A. K. Bhowmick is thankful to DST, New Delhi and Commonwealth of Australia for providing Indo-Australia Strategic Research Fund.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Chaudhary, V., Bhowmick, A.K. Synthesis, optical, and electrical properties of RNA-mediated Ag/PVA nanobiocomposites. J Nanopart Res 15, 1508 (2013). https://doi.org/10.1007/s11051-013-1508-6
Received:
Accepted:
Published:
DOI: https://doi.org/10.1007/s11051-013-1508-6