Facile green synthesis of variable metallic gold nanoparticle using Padinagymnospora, a brown marine macroalga

Author(s): Singh M, Kalaivani R, Manikandan S, Sangeetha N, Kumaraguru AK

Abstract

The process of development of reliable and eco-friendly metallic nanoparticles is an important step in the field of nanotechnology. To achieve this, use of natural sources like biological systems becomes essential. In the present work, extracellular biosynthesis of gold nanoparticles using Padina gymnospora has been attempted and achieved rapid formation of gold nanoparticles in a short duration. The UV–vis spectrum of the aqueous medium containing gold ion showed peak at 527 nm corresponding to the plasmon absorbance of gold nanoparticles. Scanning electron microscopy showed the formation of well-dispersed gold nanoparticles. FTIR spectra of brown alga confirmed that hydroxyl groups present in the algal polysaccharides were involved in the gold bioreduction. AFM analysis showed the results of particle sizes (53–67 nm) and average height of the particle roughness (60.0 nm). X-ray diffraction (XRD) spectrum of the gold nanoparticles exhibited Bragg reflections corresponding to gold nanoparticles. This environment-friendly method of biological gold nanoparticle synthesis can be applied potentially in various products that directly come in contact with the human body, such as cosmetics, and foods and consumer goods, besides medical applications.

Similar Articles

Folic acid-CdTe quantum dot conjugates and their applications for cancer cell targeting

Author(s): Suriamoorthy P, Zhang X, Hao G, Joly AG, Singh S, et al.

A method to predict breast cancer stage using Medicare claims

Author(s): Smith GL, Shih YC, Giordano SH, Smith BD, Buchholz TA

Toxic potential of materials at the nanolevel

Author(s): Nel A, Xia T, Mädler L, Li N

From nanotechnology to nanomedicine: applications to cancer research

Author(s): Seigneuric R, Markey L, Nuyten DS, Dubernet C, Evelo CT, et al.

Superparamagnetic iron oxide nanoparticle probes for molecular imaging

Author(s): Thorek DL, Chen AK, Czupryna J, Tsourkas A

Freeze-drying of nanoparticles: formulation, process and storage considerations

Author(s): Abdelwahed W, Degobert G, Stainmesse S, Fessi H

Annexin V for flow cytometric detection of phosphatidylserine expression on B cells undergoing apoptosis

Author(s): Koopman G, Reutelingsperger CP, Kuijten GA, Keehnen RM, Pals ST, et al.

Synthesis of gold nanotriangles and silver nanoparticles using Aloe vera plant extract

Author(s): Chandran SP, Chaudhary M, Pasricha R, Ahmad A, Sastry M

Gold nanoparticles: From nanomedicine to nanosensing

Author(s): Chen PC, Mwakwari SC, Oyelere AK

Near-infrared resonant nanoshells for combined optical imaging and photothermal cancer therapy

Author(s): Gobin AM, Lee MH, Halas NJ, James WD, Drezek RA, et al.

Biological applications of gold nanoparticles

Author(s): Sperling RA, Rivera Gil P, Zhang F, Zanella M, Parak WJ

Gold nanoparticles for biology and medicine

Author(s): Giljohann DA, Seferos DS, Daniel WL, Massich MD, Patel PC, et al.

Reperfusion induces myocardial apoptotic cell death

Author(s): Zhao ZQ, Nakamura M, Wang NP, Wilcox JN, Shearer S, et al.

Asbestos causes apoptosis in alveolar epithelial cells: role of iron-induced free radicals

Author(s): Aljandali A, Pollack H, Yeldandi A, Li Y, Weitzman SA, et al.

Distinct cytotoxic mechanisms of pristine versus hydroxylated fullerene

Author(s): Isakovic A, Markovic Z, Todorovic-Markovic B, Nikolic N, Vranjes-Djuric S, et al.

In vitro testing of the potential for orthopedic bone cements to cause apoptosis of osteoblast-like cells

Author(s): Ciapetti G, Granchi D, Savarino L, Cenni E, Magrini E, et al.