Design of "green" plasmonic nanocomposites with multi-band blue emission for ultrafast laser hyperthermia

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68378271%3A_____%2F24%3A00599394" target="_blank" >RIV/68378271:_____/24:00599394 - isvavai.cz</a>

Výsledek na webu

<a href="https://hdl.handle.net/11104/0356864" target="_blank" >https://hdl.handle.net/11104/0356864</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1039/d4nr03120b" target="_blank" >10.1039/d4nr03120b</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Design of "green" plasmonic nanocomposites with multi-band blue emission for ultrafast laser hyperthermia

Popis výsledku v původním jazyce

Non-toxic nanoscale materials are widely employed for different healthcare applications but their performance is still considerably limited. In this paper, various approaches of the environment-friendly ultrafast laser processing were employed for remodelling IV group semiconductor nanostructures and synthesizing highly-stable (ξ-potential is up to –47 mV) colloidal solutions of plasmonic (525 nm) nanocomposites with a strong size-dependent chemical content. All nanocomposites exhibited a remarkable lamp-excited multi-band blue emission centred at around 420 nm that is considerably (~10-fold for Au-SiC) stronger for nanocomposites prepared by the laser co-fragmentation technique. The latter formed a larger amount of smaller narrowly-dispersed (~ 4 nm for Au-Si) plasmonic nanostructures as compared to the direct laser ablation. Moreover, it also led to a higher content of semiconductor elements (~1.7-fold for Au-Ge) in nanocomposites correlating with a lower (~ 30 %) electrical conductivity. Aqueous colloidal solutions revealed a higher degree (~ 80 %) of the femtosecond laser-induced heating for all nanocomposites formed by the direct laser ablation. These findings highlight the peculiarities of the used laser processing approaches and considerably facilitate designing of specific multi-modal plasmono-fluorescence (biosensing, bioimaging, hyperthermia) nanocomposites with a required performance significantly enlarging the application area of semiconductor nanostructures.

Název v anglickém jazyce

Design of "green" plasmonic nanocomposites with multi-band blue emission for ultrafast laser hyperthermia

Popis výsledku anglicky

Non-toxic nanoscale materials are widely employed for different healthcare applications but their performance is still considerably limited. In this paper, various approaches of the environment-friendly ultrafast laser processing were employed for remodelling IV group semiconductor nanostructures and synthesizing highly-stable (ξ-potential is up to –47 mV) colloidal solutions of plasmonic (525 nm) nanocomposites with a strong size-dependent chemical content. All nanocomposites exhibited a remarkable lamp-excited multi-band blue emission centred at around 420 nm that is considerably (~10-fold for Au-SiC) stronger for nanocomposites prepared by the laser co-fragmentation technique. The latter formed a larger amount of smaller narrowly-dispersed (~ 4 nm for Au-Si) plasmonic nanostructures as compared to the direct laser ablation. Moreover, it also led to a higher content of semiconductor elements (~1.7-fold for Au-Ge) in nanocomposites correlating with a lower (~ 30 %) electrical conductivity. Aqueous colloidal solutions revealed a higher degree (~ 80 %) of the femtosecond laser-induced heating for all nanocomposites formed by the direct laser ablation. These findings highlight the peculiarities of the used laser processing approaches and considerably facilitate designing of specific multi-modal plasmono-fluorescence (biosensing, bioimaging, hyperthermia) nanocomposites with a required performance significantly enlarging the application area of semiconductor nanostructures.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

21001 - Nano-materials (production and properties)

Projekt

<a href="/cs/project/EH22_008%2F0004596" target="_blank" >EH22_008/0004596: Senzory a detektory pro informační společnost budoucnosti</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2024

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Nanoscale

ISSN

2040-3364

e-ISSN

2040-3372

Svazek periodika

16

Číslo periodika v rámci svazku

41

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

16

Strana od-do

19453-19468

Kód UT WoS článku

001322541200001

EID výsledku v databázi Scopus

2-s2.0-85205937642