PUBLICATION

Biosurfactant templated quantum sized fluorescent gold nanoclusters for in vivo bioimaging in zebrafish embryos

Authors
Chandirasekar, S., Chandrasekaran, C., Muthukumarasamyvel, T., Sudhandiran, G., Rajendiran, N.
ID
ZDB-PUB-160403-5
Date
2016
Source
Colloids and surfaces. B, Biointerfaces   143: 472-480 (Journal)
Registered Authors
Keywords
Bioimaging, Biosurfactant, Fluorescence, Gold nanocluster, Zebrafish
MeSH Terms
  • Animals
  • Caspase 3/genetics
  • Caspase 3/metabolism
  • Embryo, Nonmammalian
  • Fluorescence
  • Fluorescent Dyes/chemical synthesis*
  • Fluorescent Dyes/pharmacology
  • Gene Expression Regulation/drug effects
  • Gold/chemistry*
  • Humans
  • Metal Nanoparticles/chemistry*
  • Microscopy, Electron, Transmission
  • Optical Imaging/methods*
  • Particle Size
  • Proto-Oncogene Proteins c-bcl-2/genetics
  • Proto-Oncogene Proteins c-bcl-2/metabolism
  • Sodium Cholate/chemistry*
  • Surface-Active Agents/chemistry*
  • Tumor Suppressor Protein p53/genetics
  • Tumor Suppressor Protein p53/metabolism
  • Zebrafish
  • Zebrafish Proteins/genetics
  • Zebrafish Proteins/metabolism
  • bcl-2-Associated X Protein/genetics
  • bcl-2-Associated X Protein/metabolism
PubMed
27037785 Full text @ Colloids Surf. B Biointerfaces
Abstract
We report the biosurfactant (sodium cholate) templated bright bluish-green emitting gold nanoclusters (AuNCs) by green chemical approach. Optical properties of the AuNCs were studied using UV-vis and luminescence spectroscopy. Lifetime of the fluorescent AuNCs was measured using time correlated single photon counting technique (TCSPC). High-resolution transmission electron microscopy (HR-TEM) and dynamic light scattering (DLS) were used to measure the sizes of the clusters. In-vivo toxicity and bioimaging studies of sodium cholate (NaC) templated AuNCs were carried out at different developmental stages of zebrafish embryos. The survival rate, hatching rate, heart rate, malformation and apoptotic gene expression experiments shows no significant toxicity in developing embryos up to 100μL/mL of AuNCs concentration and the AuNCs stained embryos exhibited green fluorescence with high intensity over the period from 4 to 96hpf (hours post fertilization) which shows that AuNCs were stable in living organisms.
Genes / Markers
Figures
Expression
Phenotype
Mutations / Transgenics
Human Disease / Model
Sequence Targeting Reagents
Fish
Antibodies
Orthology
Engineered Foreign Genes
Mapping