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Fabrication with magnetic-spin coating: influence of magnetic-inertia energy ratio on gold-pickering ferrofluid droplet assembly morphology. (2024)
Journal Article
OKPOZO, P., NJUGUNA, J., ISLAM, S., UYANGA, K. and PANCHOLI, K. 2024. Fabrication with magnetic-spin coating: influence of magnetic-inertia energy ratio on gold-pickering ferrofluid droplet assembly morphology. Journal of magnetism and magnetic materials [online], 611, article number 172577. Available from: https://doi.org/10.1016/j.jmmm.2024.172577

Magnetic self-assembly of nanoparticles is a well-known technique for creating thin-film array-patterned functional microstructures. However, an uncontrollable hierarchical assembly formation of magnetically stimulated particles has hindered the desi... Read More about Fabrication with magnetic-spin coating: influence of magnetic-inertia energy ratio on gold-pickering ferrofluid droplet assembly morphology..

Enhancement of infrared absorption through a patterned thin film of magnetic field and spin-coating directed self-assembly of gold nanoparticle stabilised ferrofluid emulsion. (2023)
Journal Article
OKPOZO, P., DWIVEDI, Y., HUO, D. and PANCHOLI, K. 2023. Enhancement of infrared absorption through a patterned thin film of magnetic field and spin-coating directed self-assembly of gold nanoparticle stabilised ferrofluid emulsion. RSC advances [online], 13(34), pages 23955-23966. Available from: https://doi.org/10.1039/d3ra01369c

Molecular vibration signals were amplified by the gold strip gratings as a result of grating resonances and nearby electric field hotspots. Colloidal gold island films exhibit similar enhancement; however, the uneven geometrical characteristics of th... Read More about Enhancement of infrared absorption through a patterned thin film of magnetic field and spin-coating directed self-assembly of gold nanoparticle stabilised ferrofluid emulsion..

Exploring the enhancement of infrared absorption through magnetically guided assembly of gold nanoparticle stabilized ferrofluid emulsion. [Dataset] (2023)
Data
OKPOZO, P., DWIVEDI, Y., HUO, D. and PANCHOLI, K. 2023. Exploring the enhancement of infrared absorption through magnetically guided assembly of gold nanoparticle stabilized ferrofluid emulsion. [Dataset]. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-1724749

These data have been produced as part of a research project that aimed to develop a method for the preparation of a magnetically-directed self-assembly of gold Pickering ferrofluid emulsion, with the goal of enhancing infrared absorption from the mol... Read More about Exploring the enhancement of infrared absorption through magnetically guided assembly of gold nanoparticle stabilized ferrofluid emulsion. [Dataset].

Exploring the enhancement of infrared absorption through magnetically guided assembly of gold nanoparticle stabilized ferrofluid emulsion. (2023)
Preprint / Working Paper
OKPOZO, P., DWIVEDI, Y., HUO, D. and PANCHOLI, K. 2023. Exploring the enhancement of infrared absorption through magnetically guided assembly of gold nanoparticle stabilized ferrofluid emulsion. Hosted on OpenAIR [online]. Available from: https://rgu-repository.worktribe.com/output/1759908

The molecular vibration signals were amplified by the gold strip gratings as a result of grating resonances and nearby electric field hotspots. Colloidal gold island films exhibit similar enhancement; however, the uneven geometrical characteristics o... Read More about Exploring the enhancement of infrared absorption through magnetically guided assembly of gold nanoparticle stabilized ferrofluid emulsion..

Study of spatial organisation of magnetic field directed gold-pickering-ferrofluid-nanoemulsion in spin coated film. (2023)
Journal Article
OKPOZO, P. and PANCHOLI, K. 2023. Study of spatial organisation of magnetic field directed gold-pickering-ferrofluid-nanoemulsion in spin coated film. Hybrid advances [online], 2, article 100018. Available from: https://doi.org/10.1016/j.hybadv.2023.100018

The magnetic field directed self-assembly of the nanoparticles is cheap, fast and easy method to prepare the patterned thin film useful for various applications. However, the dipole-dipole interaction between nanoparticles at the interface generates... Read More about Study of spatial organisation of magnetic field directed gold-pickering-ferrofluid-nanoemulsion in spin coated film..

Study of spatial organisation of magnetic field directed gold-pickering-ferrofluid-nanoemulsion in spin coated film. [Dataset] (2023)
Data
OKPOZO, P. and PANCHOLI, K. 2023. Study of spatial organisation of magnetic field directed gold-pickering-ferrofluid-nanoemulsion in spin coated film. [Dataset]. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-1848943

Aim is to study the spatial organisation of the magnetically directed gold pickering ferrofluid emulsion via spin coating. The magnetically directed self-assembly manufacturing technique was successfully applied by combining the magnetic field and sp... Read More about Study of spatial organisation of magnetic field directed gold-pickering-ferrofluid-nanoemulsion in spin coated film. [Dataset].

Magnetic field directed self-assembly of gold Pickering emulsion for preparing patterned film. (2022)
Thesis
OKPOZO, O.P. 2022. Magnetic field directed self-assembly of gold Pickering emulsion for preparing patterned film. Robert Gordon University, PhD thesis. Hosted on OpenAIR [online]. Available from: https://doi.org/10.48526/rgu-wt-1987909

Patterning plays a vital in role in sensor-based devices like surface-enhanced Raman spectroscopy (SERS), surface-enhanced infrared absorption (SEIRA), radio frequency (RF) antennas and many others. The linear array spacing and width of gold strips h... Read More about Magnetic field directed self-assembly of gold Pickering emulsion for preparing patterned film..

Citric acid crosslinked natural bi-polymer-based composite hydrogels: effect of polymer ratio and beta-cyclodextrin on hydrogel microstructure. (2020)
Journal Article
UYANGA, K. A., OKPOZO, O. P., ONYEKWERE, O. S., and DAOUD, W. A. 2020. Citric acid crosslinked natural bi-polymer-based composite hydrogels: effect of polymer ratio and beta-cyclodextrin on hydrogel microstructure. Reactive and functional polymers [online], 154, article ID 104682. Available from: https://doi.org/10.1016/j.reactfunctpolym.2020.104682

Composite hydrogels based on natural polymers arouse interest as sustainable matrices for the delivery of bioactive materials. This study investigates the possibility of achieving high thermally and hydrolytically stable, well-defined microstructure... Read More about Citric acid crosslinked natural bi-polymer-based composite hydrogels: effect of polymer ratio and beta-cyclodextrin on hydrogel microstructure..

Observation of stimulated emission from Rhodamine 6G-polymer aggregate adsorbed at foam interfaces. (2018)
Journal Article
PANCHOLI, K., ROBERTSON, P.K.J., OKPOZO, P., BEATTIE, N.S. and HUO, D. 2019. Observation of stimulated emission from Rhodamine 6G-polymer aggregate adsorbed at foam interfaces. Journal of physics: energy [online], 1(1), article ID 015007. Available from: https://doi.org/10.1088/2515-7655/aaec3d

This paper reports for the first time the observation of stimulated emissions from the gas–liquid interface between two adjacent bubbles in highly ordered foams containing Rhodamine 6 G and surfactant. Stimulated emissions centred at 595 nm were obse... Read More about Observation of stimulated emission from Rhodamine 6G-polymer aggregate adsorbed at foam interfaces..