NDLI: Pulsed photoacoustic and photothermal response of gold nanoparticles

Please wait, while we are loading the content...

Pulsed photoacoustic and photothermal response of gold nanoparticles

Content Provider	Scilit
Author	Kumar, Deepak Soni, Ravi Kant Ghai, Devinder Pal
Copyright Year	2019
Description	Journal: Nanotechnology Gold nanospheres and nanorods are the promising agents for photoacoustic imaging and photothermal therapy. In this work, seed-mediated methods were optimized for the synthesis of gold nanosphere and nanorod collides of different sizes. Nanosecond pulse photoacoustic and photothermal analysis of these nanoparticles were carried out and compared with finite-element simulation.The simulations were performed to quantify the size-dependent photoacoustic signal enhancement for nanosphere and nanorod. The non-sphericity contribution of nanosphere was found to enhance the photoacoustic signal. Nanosecond pulse photoacoustic studies of nanorods of different aspect ratio were carried out. Nanorods of aspect ratio ~ 4.8 were found to be the most efficient photoacoustic signal generator. Photoacoustic studies of nanorod at varying laser fluence were performed and threshold fluence of 5 mJ/cm2 was observed. Nanorods exposed to nanosecond laser pulses undergoes size and shape variations which are confirmed by optical absorbance and transmission electron microscopy measurements. Simulations of nanorods of different aspect ratio and diameter were performed to investigate the photoacoustic signal enhancement and photothermal stability. Miniature size nanorod of 10 nm diameter and aspect ratio 5 was found most appropriate in terms of photoacoustic signal generation and photothermal stability.
Related Links	https://iopscience.iop.org/article/10.1088/1361-6528/ab47ae/pdf
ISSN	09574484
e-ISSN	13616528
DOI	10.1088/1361-6528/ab47ae
Journal	Nanotechnology
Issue Number	3
Volume Number	31
Language	English
Publisher	IOP Publishing
Publisher Date	2019-09-25
Access Restriction	Open
Subject Keyword	Journal: Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Chemistry Nanoscience and Nanotechnology Mechanics of Materials Mechanical Engineering Bioengineering Electrical and Electronic Engineering

Central Library (ISO-9001:2015 Certified)
Indian Institute of Technology Kharagpur
Kharagpur, West Bengal, India | PIN - 721302

See location in the Map
03222 282435
Mail: support@ndl.gov.in

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in