Aerosol assisted self-assembly as a route to synthesize solid and hollow spherical lignin colloids and its utilization in layer by layer deposition

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62156489%3A43410%2F17%3A43909540" target="_blank" >RIV/62156489:43410/17:43909540 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.ultsonch.2016.09.001" target="_blank" >http://dx.doi.org/10.1016/j.ultsonch.2016.09.001</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ultsonch.2016.09.001" target="_blank" >10.1016/j.ultsonch.2016.09.001</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Aerosol assisted self-assembly as a route to synthesize solid and hollow spherical lignin colloids and its utilization in layer by layer deposition

Popis výsledku v původním jazyce

Lignin, a major constituent of plant cell-wall and by-product of paper based industries is traditionally used for low value applications (heat or electricity generation), but its potential in high value utilization has also been widely reported. In this work, we synthesized lignin colloidal particles using ultrasonic spray-freezing route without any chemical functionalization of material, and stabilized it by electrostatic route. As per our knowledge, this technique is the first reported method which yields hollow/solid lignin colloids having good particle size control without any chemical functionalization of material. Dioxane soluble fraction of Alkali lignin (D-lignin) was used without any further chemical functionalization. D-lignin dissolved in DMSO was sprayed upon liquid nitrogen cooled copper plate using an ultrasonic nebulizer. The resulting frozen droplets were collected and found to possess hollow and solid morphology. Particles thus obtained were characterized for their size distribution and morphology, and compared to theoretically anticipated values. Size tunability of particles in relation to concentration of sprayed lignin solution was also studied. In addition to that, six layers of lignin colloids were deposited on quartz slide with the aid of negligible UV absorbing polyelectrolyte aqueous solution PDADMAC [Poly (diallyldimethylammonium chloride)]. Gradation in UV absorbing ability of lignin with increase in number of layers could be clearly observed. Hollow and solid lignin colloids, apart from their application in sunscreencosmetics owing to their UV absorbing ability, show potential applications in drug delivery also.

Název v anglickém jazyce

Aerosol assisted self-assembly as a route to synthesize solid and hollow spherical lignin colloids and its utilization in layer by layer deposition

Popis výsledku anglicky

Lignin, a major constituent of plant cell-wall and by-product of paper based industries is traditionally used for low value applications (heat or electricity generation), but its potential in high value utilization has also been widely reported. In this work, we synthesized lignin colloidal particles using ultrasonic spray-freezing route without any chemical functionalization of material, and stabilized it by electrostatic route. As per our knowledge, this technique is the first reported method which yields hollow/solid lignin colloids having good particle size control without any chemical functionalization of material. Dioxane soluble fraction of Alkali lignin (D-lignin) was used without any further chemical functionalization. D-lignin dissolved in DMSO was sprayed upon liquid nitrogen cooled copper plate using an ultrasonic nebulizer. The resulting frozen droplets were collected and found to possess hollow and solid morphology. Particles thus obtained were characterized for their size distribution and morphology, and compared to theoretically anticipated values. Size tunability of particles in relation to concentration of sprayed lignin solution was also studied. In addition to that, six layers of lignin colloids were deposited on quartz slide with the aid of negligible UV absorbing polyelectrolyte aqueous solution PDADMAC [Poly (diallyldimethylammonium chloride)]. Gradation in UV absorbing ability of lignin with increase in number of layers could be clearly observed. Hollow and solid lignin colloids, apart from their application in sunscreencosmetics owing to their UV absorbing ability, show potential applications in drug delivery also.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10401 - Organic chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

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

Název periodika

Ultrasonics Sonochemistry

ISSN

1350-4177

e-ISSN

—

Svazek periodika

35

Číslo periodika v rámci svazku

March

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

45-50

Kód UT WoS článku

000390494300004

EID výsledku v databázi Scopus

2-s2.0-84994896440