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Stable antibacterial silver nanoparticles produced with seed-derived callus extract of Catharanthus roseus.
Artif Cells Nanomed Biotechnol. 2018 Sep; 46(6):1266-1273.AC

Abstract

Biocompatibility and ecotoxicity concerns associated with chemically produced metallic nanoparticles have led to an increasing interest in the development of environmentally benign alternatives for nanoparticle synthesis using biological platforms. Herein, we report the utilization of an extract of seed-derived callus of Catharanthus roseus for the production of stable silver nanoparticles (Ag NPs). The bioreduction of silver ions was evident from UV-Vis spectroscopy results: the absorption maxima were observed at 425 nm, indicative of elemental silver. Transmission electron micrographs revealed that the Ag NPs were well-dispersed and predominantly spherical with particle sizes in the range of 2-15 nm. The synthesized Ag NPs exhibited colloidal stability in an aqueous dispersion for a period of 120 days, as indicated by UV-Vis absorbance spectra and zeta potential measurements. Fourier transform infrared spectroscopy revealed the possible utilization of hydroxyl groups and amides in the reduction of silver ions and surface stabilization of the Ag NPs, respectively. Notably, the synthesized Ag NPs showed considerable antibacterial action against Escherichia coli even after 8 weeks of storage under ambient conditions. Thus, cell extracts of cultured callus of Catharanthus roseus could be explored as an ecofriendly platform for the synthesis of stable and functional nanoparticles.

Authors+Show Affiliations

a Life Science and Bioengineering, Graduate School of Life and Environmental Sciences , University of Tsukuba , Tsukuba , Japan. b Department of Plant Science and Biotechnology , University of Nigeria , Nsukka , Nigeria.b Department of Plant Science and Biotechnology , University of Nigeria , Nsukka , Nigeria.a Life Science and Bioengineering, Graduate School of Life and Environmental Sciences , University of Tsukuba , Tsukuba , Japan.a Life Science and Bioengineering, Graduate School of Life and Environmental Sciences , University of Tsukuba , Tsukuba , Japan.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

28830244

Citation

Osibe, Dandy Ahamefula, et al. "Stable Antibacterial Silver Nanoparticles Produced With Seed-derived Callus Extract of Catharanthus Roseus." Artificial Cells, Nanomedicine, and Biotechnology, vol. 46, no. 6, 2018, pp. 1266-1273.
Osibe DA, Chiejina NV, Ogawa K, et al. Stable antibacterial silver nanoparticles produced with seed-derived callus extract of Catharanthus roseus. Artif Cells Nanomed Biotechnol. 2018;46(6):1266-1273.
Osibe, D. A., Chiejina, N. V., Ogawa, K., & Aoyagi, H. (2018). Stable antibacterial silver nanoparticles produced with seed-derived callus extract of Catharanthus roseus. Artificial Cells, Nanomedicine, and Biotechnology, 46(6), 1266-1273. https://doi.org/10.1080/21691401.2017.1367927
Osibe DA, et al. Stable Antibacterial Silver Nanoparticles Produced With Seed-derived Callus Extract of Catharanthus Roseus. Artif Cells Nanomed Biotechnol. 2018;46(6):1266-1273. PubMed PMID: 28830244.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Stable antibacterial silver nanoparticles produced with seed-derived callus extract of Catharanthus roseus. AU - Osibe,Dandy Ahamefula, AU - Chiejina,Nneka Virginia, AU - Ogawa,Kazuyoshi, AU - Aoyagi,Hideki, Y1 - 2017/08/22/ PY - 2017/8/24/pubmed PY - 2018/11/28/medline PY - 2017/8/24/entrez KW - Antibacterial activity KW - Catharanthus roseus KW - callus extract KW - colloidal stability KW - green synthesis KW - silver nanoparticles SP - 1266 EP - 1273 JF - Artificial cells, nanomedicine, and biotechnology JO - Artif Cells Nanomed Biotechnol VL - 46 IS - 6 N2 - Biocompatibility and ecotoxicity concerns associated with chemically produced metallic nanoparticles have led to an increasing interest in the development of environmentally benign alternatives for nanoparticle synthesis using biological platforms. Herein, we report the utilization of an extract of seed-derived callus of Catharanthus roseus for the production of stable silver nanoparticles (Ag NPs). The bioreduction of silver ions was evident from UV-Vis spectroscopy results: the absorption maxima were observed at 425 nm, indicative of elemental silver. Transmission electron micrographs revealed that the Ag NPs were well-dispersed and predominantly spherical with particle sizes in the range of 2-15 nm. The synthesized Ag NPs exhibited colloidal stability in an aqueous dispersion for a period of 120 days, as indicated by UV-Vis absorbance spectra and zeta potential measurements. Fourier transform infrared spectroscopy revealed the possible utilization of hydroxyl groups and amides in the reduction of silver ions and surface stabilization of the Ag NPs, respectively. Notably, the synthesized Ag NPs showed considerable antibacterial action against Escherichia coli even after 8 weeks of storage under ambient conditions. Thus, cell extracts of cultured callus of Catharanthus roseus could be explored as an ecofriendly platform for the synthesis of stable and functional nanoparticles. SN - 2169-141X UR - https://www.unboundmedicine.com/medline/citation/28830244/Stable_antibacterial_silver_nanoparticles_produced_with_seed_derived_callus_extract_of_Catharanthus_roseus_ L2 - https://www.tandfonline.com/doi/full/10.1080/21691401.2017.1367927 DB - PRIME DP - Unbound Medicine ER -