Development of smart adhesive using lanthanide-doped phosphor and carboxymethyl cellulose-reinforced gum Arabic

Ghadah M Al-Senani; Salhah D Al-Qahtani

doi:10.1016/j.saa.2024.124397

Development of smart adhesive using lanthanide-doped phosphor and carboxymethyl cellulose-reinforced gum Arabic

Spectrochim Acta A Mol Biomol Spectrosc. 2024 May 3:317:124397. doi: 10.1016/j.saa.2024.124397. Online ahead of print.

Authors

Ghadah M Al-Senani¹, Salhah D Al-Qahtani²

Affiliations

¹ Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia. Electronic address: gmalsnany@pnu.edu.sa.
² Department of Chemistry, College of Science, Princess Nourah bint Abdulrahman University, P.O. Box 84428, Riyadh 11671, Saudi Arabia.

PMID: 38718744
DOI: 10.1016/j.saa.2024.124397

Abstract

Smart polymer glue with photoluminescence and water-repellent properties was developed. The luminescent adhesive continues emitting light for up to 120 min after turning the excitation source off. Nanoparticles of lanthanide strontium aluminum oxide (LSAO) (8-13 nm) were consistently immobilized into carboxymethyl cellulose-reinforced gum Arabic (CMC/GA) adhesive. Using various concentrations of LSAO, the generated adhesives showed emission intensity at 519 nm and an excitation band at 365 nm. Depending on LSAO content, both of afterglow and fluorescence emission were monitored. Photochromism was detected as the transparent adhesive film changes color to green under ultraviolet irradiation. A greenish-yellow lightening in a darkened place was also observed. The nanocomposite resistance to scratches and hydrophobicity were found to enhance as the LSAO content was increased in the carboxymethyl cellulose-reinforced gum Arabic matrix. The LSAO@CMC/GA nanocomposite showed high durability and photostability. The present strategy proved the viability of a potential mass production toward photoluminescent adhesives for various smart applications, such as smart packaging, anti-counterfeiting printing, smart windows, and safety signs.

Keywords: Carboxymethyl cellulose; Fluorescence; Gum Arabic adhesive; Photoluminescence; Superhydrophobic.