Convergence of localized surface plasmon resonance of metal nanoparticles with classical ELISA has emerged as a new class of immunoassays, i.e. plasmonic ELISA, enabling biocatalysis mediated ultrasensitive naked-eye detection of disease biomarkers.

Jitendra Satija

Centre for Nanobiotechnology

Vellore Campus

Debasish Mishra

Department of Biotechnology

School of Bio Sciences and Technology

J. Satija

Nirmal Punjabi

D. Mishra

Punjabi N

Soumyo Mukherji

Mukherji S.

biomarkers

Diagnosis

Eye protection

Growth kinetics

Metal nanoparticles

Modulation

Nanoparticles

Precious metals

Surface plasmon resonance

Analyte concentration

Biocatalytic reaction

Enzyme linked immunosorbent assay

Future perspectives

In-vitro diagnostic

Localized surface plasmon resonance

Plasmonic properties

Point of care diagnostic

Plasmons

Vellore Institute of Technology (VIT) is a private university located in&nbsp;Tamil Nadu, India. Founded in 1984, as Vellore Engineering College, the institution offers 20 undergraduate, 34 postgraduate, four integrated and four research programs. It has campuses in Vellore, Amravati, Bhopal and Chennai.

VIT is one of the top ranked private universities in India according to NIRF, THE and QS Rankings.&nbsp;Govt. of India has recognized&nbsp;VIT, Vellore as an&nbsp;Institution of Eminence. This has allowed VIT to take independent quality initiatives and move up in world ranking.

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VIT University

RSC Advances

Various strategies (single &amp; multi-pot) to synthesize dendrimer-coated metal nanoparticles and their exploration in various biomedical applications.

Journal of Materials Chemistry B

Dendrimer as a multifunctional capping agent for metal nanoparticles for use in bioimaging, drug delivery and sensor applications

Plasmonic-ELISA: Expanding horizons

Current colorimetric detection techniques for metals using gold nanorods based on variations in the aspect ratio have been summarized.

Analytical Methods

State-of-the-art strategies for the colorimetric detection of heavy metals using gold nanorods based on aspect ratio reduction

We report a rapid and facile method to synthesize highly monodispersed silver nanoparticles (AgNP) by heteroepitaxial growth method using gold seed particles (size ~2&nbsp;nm). Silver was deposited on gold seed particles by Tollen’s reaction. The presence of seed particles provided good control on the morphology and size distribution of AgNP, achieving the standard deviation in size ≤11&nbsp;%. The real-time kinetics of AgNP formation revealed that the presence of gold seed particles increased the reaction rate by 7-fold compared to seedless approach. The size and extinction maxima of AgNP were tunable by varying the gold seed particles to silver molar ratio. This new heteroepitaxial growth method of AgNP synthesis is simple, fast (completing the reaction within 3&nbsp;min), and eco-friendly to yield monodispersed nanoparticles. Further, these AgNP were used to develop efficient surface-enhanced Raman scattering (SERS) substrates for sensing applications which showed good repeatability and significantly improved enhancement factors in the near-infrared (NIR) region. © 2014, Springer Science+Business Media New York.

Plasmonics

Facile Synthesis of Size-Tunable Silver Nanoparticles by Heteroepitaxial Growth Method for Efficient NIR SERS

Hollow bimetallic nanostructures have recently emerged as attractive plasmonic materials due to the ease of optical tunability by changing their size/composition.

Facile synthesis of size and wavelength tunable hollow gold nanostructures for the development of a LSPR based label-free fiber-optic biosensor

Investigation of the transformation of morphology, optical properties, and zeta potential of dumbbell-shaped gold nanorods upon Cr(vi) interaction was performed.

Etching-based transformation of dumbbell-shaped gold nanorods facilitated by hexavalent chromium and their possible application as a plasmonic sensor

Journal	Data powered by TypesetRSC Advances
Publisher	Data powered by TypesetRoyal Society of Chemistry
ISSN	20462069
Open Access	No