Electrospun Light-emitting Tm3+-doped SiO2–HfO2 nanofiber for photonic applications

Zulfikri, Nurul Izzati Zafirah; Mustaffa, Nur Amalina; Mohamed, Ruzianisra; Supardan, Siti Nurbaya; Kamil, Suraya Ahmad

doi:10.1016/j.jlumin.2023.119723

Cited by 2 publications

(2 citation statements)

References 53 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This enables one to tailor their properties, such as mechanical strength, porosity, and degradation rate, to specific biomedical applications. However, the method can be complex and may require the optimization of various parameters (e.g., reaction conditions and drying conditions) to achieve the desired scaffold characteristics [ 34 , 35 , 36 , 37 , 38 , 39 , 40 ]. As shown in Figure 1 b, Wei Ma et al used chitosan nanofibers (CSNF), prepared using the pulping homogenization method combined with the sol–gel method, and further introduction of polyvinyl alcohol (PVA), to prepare chitosan nanofiber/nanosilica and chitosan nanofiber/nanosilica/PVA scaffolds [ 24 ].…”

Section: Nanofiber Scaffold Technologymentioning

confidence: 99%

Nanofiber Scaffolds as Drug Delivery Systems Promoting Wound Healing

Jiang

Zheng

et al. 2023

Pharmaceutics

View full text Add to dashboard Cite

Nanofiber scaffolds have emerged as a revolutionary drug delivery platform for promoting wound healing, due to their unique properties, including high surface area, interconnected porosity, excellent breathability, and moisture absorption, as well as their spatial structure which mimics the extracellular matrix. However, the use of nanofibers to achieve controlled drug loading and release still presents many challenges, with ongoing research still exploring how to load drugs onto nanofiber scaffolds without loss of activity and how to control their release in a specific spatiotemporal manner. This comprehensive study systematically reviews the applications and recent advances related to drug-laden nanofiber scaffolds for skin-wound management. First, we introduce commonly used methods for nanofiber preparation, including electrostatic spinning, sol–gel, molecular self-assembly, thermally induced phase separation, and 3D-printing techniques. Next, we summarize the polymers used in the preparation of nanofibers and drug delivery methods utilizing nanofiber scaffolds. We then review the application of drug-loaded nanofiber scaffolds for wound healing, considering the different stages of wound healing in which the drug acts. Finally, we briefly describe stimulus-responsive drug delivery schemes for nanofiber scaffolds, as well as other exciting drug delivery systems.

show abstract

Section: Nanofiber Scaffold Technologymentioning

confidence: 99%

Nanofiber Scaffolds as Drug Delivery Systems Promoting Wound Healing

Jiang

Zheng

et al. 2023

Pharmaceutics

View full text Add to dashboard Cite

show abstract

“…To overcome this problem, oxide materials such as Al 2 O 3 , TiO 2 , P 2 O 5 and HfO 2 are introduced, which reduces the clustering of RE ions by providing more non-bridging oxygen into the SiO 2 [12,14,15]. Due to its favourable thermal and optical properties, TiO 2 is an excellent co-host for RE ions [16].…”

Section: Introductionmentioning

confidence: 99%

Effect of Yb³⁺ concentration on the spectroscopic properties of Er³⁺/Yb³⁺ co-doped SiO₂-TiO₂ nanofiber

Razali,

Supardan,

Yunus

et al. 2024

J. Phys.: Conf. Ser.

View full text Add to dashboard Cite

Er3+ has been gaining much interest due to the multiple emissions in both infrared and visible regions. Based on the previous study, SiO2-TiO2 have been proven to be an excellent host for Er3+. However, Er3+ exhibits a low absorption cross-section when doped into the silica-based host. Therefore, Yb3+ has been introduced into the matrix and acts as a sensitiser to increase the luminescence intensity. Er3+/Yb3+ co-doped 75SiO2-25TiO2 nanofiber with different Er3+/Yb3+ ratios were fabricated via the sol-gel electrospinning method. The FESEM result shows the diameter of the nanofibers in the range of 62 to 515 nm. The absence of any peak within the 3000-4000 cm-1 range in the FTIR spectra indicates the complete removal of the OH group. The XRD results imply that all samples were amorphous. The PL spectra showed strong green emission peaks, which were ascribed to 2H11/2 → 4I15/2 as well as red emission peaks attributed to 4F9/2 → 4I15/2 Er3+ transitions. The PL intensity was varied according to the Yb3+ concentration. The addition of Yb3+ was proven to aid the increment of PL intensity. Nevertheless, the PL intensity reduced when too high of Yb3+ concentration was used due to the concentration quenching effect.

show abstract

Electrospun Light-emitting Tm3+-doped SiO2–HfO2 nanofiber for photonic applications

Cited by 2 publications

References 53 publications

Nanofiber Scaffolds as Drug Delivery Systems Promoting Wound Healing

Nanofiber Scaffolds as Drug Delivery Systems Promoting Wound Healing

Effect of Yb³⁺ concentration on the spectroscopic properties of Er³⁺/Yb³⁺ co-doped SiO₂-TiO₂ nanofiber

Contact Info

Product

Resources

About

Electrospun Light-emitting Tm3+-doped SiO2–HfO2 nanofiber for photonic applications

Cited by 2 publications

References 53 publications

Nanofiber Scaffolds as Drug Delivery Systems Promoting Wound Healing

Nanofiber Scaffolds as Drug Delivery Systems Promoting Wound Healing

Effect of Yb3+ concentration on the spectroscopic properties of Er3+/Yb3+ co-doped SiO2-TiO2 nanofiber

Contact Info

Product

Resources

About

Effect of Yb³⁺ concentration on the spectroscopic properties of Er³⁺/Yb³⁺ co-doped SiO₂-TiO₂ nanofiber