Natural zeolite for adsorbing and release of functional materials

Vladimir Ararat Hovhannisyan, Chen Yuan Dong, Feng Jie Lai, Nan-Shan Chang, Shean Jen Chen

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Using multiphoton microscopy (MPM), we demonstrated that effective inducing of two-photon excited luminescence and second-harmonic generation signals in nano/microparticles of clinoptilolite type of zeolite (CZ) by femtosecond near-infrared laser excitation can be successfully utilized in multiphoton imaging of the drug adsorption processes. Adsorption of photodynamic active dyes (hypericin, chlorin e 6 , methylene blue, and fluorescein) and their release from CZ pores in the presence of biomolecules, such as collagen from bovine Achilles tendon, albumin, and hemoglobin, were investigated by absorption and fluorescence spectrometry. To quantify the experimental results on hypericin release, here we use a kinetic curves fitting approach and calculate hypericin release rates in different environments. This approach allows to compare various mathematical models and uses more parameters to better characterize drug release profiles. In addition, magnetic CZ particles were fabricated and proposed as a promising material for drug delivery and controlled release in biological systems. Optical spectrometry and MPM are effective approaches that may reveal potential of natural zeolites in controlled drug delivery and biomedical imaging.

Original languageEnglish
Article number091411
JournalJournal of Biomedical Optics
Volume23
Issue number9
DOIs
Publication statusPublished - 2018 Sep 1

Fingerprint

Zeolites
Functional materials
Spectrometry
Microscopic examination
drugs
Controlled drug delivery
Imaging techniques
Adsorption
Laser excitation
Infrared lasers
Hemoglobin
Tendons
Curve fitting
Biomolecules
Biological systems
Harmonic generation
Drug delivery
Collagen
Luminescence
delivery

All Science Journal Classification (ASJC) codes

  • Electronic, Optical and Magnetic Materials
  • Biomaterials
  • Atomic and Molecular Physics, and Optics
  • Biomedical Engineering

Cite this

Hovhannisyan, Vladimir Ararat ; Dong, Chen Yuan ; Lai, Feng Jie ; Chang, Nan-Shan ; Chen, Shean Jen. / Natural zeolite for adsorbing and release of functional materials. In: Journal of Biomedical Optics. 2018 ; Vol. 23, No. 9.
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Natural zeolite for adsorbing and release of functional materials. / Hovhannisyan, Vladimir Ararat; Dong, Chen Yuan; Lai, Feng Jie; Chang, Nan-Shan; Chen, Shean Jen.

In: Journal of Biomedical Optics, Vol. 23, No. 9, 091411, 01.09.2018.

Research output: Contribution to journalArticle

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