Nucleation and self-assembly dynamics of hierarchical YAlO 3 :Ce 3+ architectures: Nano probe for in vitro dermatoglyphics and anti-mimetic applications.

Autor: G P D; Department of Physics, Acharya Institute of Graduate Studies, Bangalore 560 107, India; Research and Development Centre, Bharathiar University, Coimbatore 641 046, India., H B P; Department of Physics, FMPS, M.S.Ramaiah University of Applied Sciences, Bangalore 560 054, India. Electronic address: premhb@gmail.com., H N; C.N.R. Rao Centre for Advanced Materials, Tumakuru University, Tumakuru 572103, India. Electronic address: bhushanvlc@gmail.com., S C S; Director-National Assessment and Accreditation Council (Work carried out as Honorary Professor, Jain University), Bangalore 560 069, India., B U; Department of Science and Humanities, PVP Polytechnic, Bangalore 560 056, India., R B B; C.N.R. Rao Centre for Advanced Materials, Tumakuru University, Tumakuru 572103, India.
Jazyk: angličtina
Zdroj: Materials science & engineering. C, Materials for biological applications [Mater Sci Eng C Mater Biol Appl] 2019 Jun; Vol. 99, pp. 282-295. Date of Electronic Publication: 2019 Jan 15.
DOI: 10.1016/j.msec.2019.01.060
Abstrakt: Highly efficient blue emitting YAlO 3 :Ce 3+ (1-11 mol%) nanopowders have been fabricated via bio-surfactant Epigallocatechin Gallate assisted ultrasound irradiated sonochemical route. The nucleation and self-assembly dynamics of solids in solutions influences many straightforward normal processes, hence it plays a vital role in materials engineering applications. Nevertheless, the comprehensive nucleation and self-assembly mechanisms of hierarchical architectures still poorly acknowledged. In the present work, we have been exploring the nucleation and stepwise self-assembly dynamics of the YAlO 3 :Ce 3+ (5 mol%) nanopowders into hierarchical architectures. We found that under ultrasound irradiation, nucleation in the solution forms via multi step process and self-assembly was stimulated by intermolecular forces between the nanopowders and external forces. The optimized YAlO 3 :Ce 3+ (5 mol%) nanopowders used as a luminescent labeling agent for visualization of latent fingerprints on various porous and non-porous surfaces under ultraviolet 254 nm light. The obtained results exhibit well defined ridge details with high sensitivity, selectivity and low background hindrance which showed greater advantages as compared to the conventional powders. Extensive fingerprint details, namely the number and distribution of sweat pores in a ridge were clearly revealed. Further, demonstrated the viability of high-performance security labels using optimized sample for practical anti-mimetic applications. The present work, enabling understanding of ultrasound assisted nucleation and self-assembly of nanopowders which impart dermatoglyphics and anti- mimetic applications.
(Copyright © 2019 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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