TY - JOUR
T1 - Polyoxometalate ionic liquid Hydrogel
T2 - An innovative Stimuli–Responsive Approach for effective corrosion product removal
AU - Bibi, Perveen
AU - Alsharif, Abdualziz
AU - Aldhafeeri, Tahani Rahil
AU - Ullah, Hameed
AU - Soliman, Mohamed Mohamed
AU - Gaber, Ahmed
AU - Ali Shah, Syed Asim
AU - Farooq, Ariba
AU - Asif, Hafiz Muhammad
N1 - Publisher Copyright:
© 2025 Elsevier Ltd
PY - 2025/9/1
Y1 - 2025/9/1
N2 - Surgical instruments, such as AISI–420 and AISI–304, commonly made of titanium alloys and stainless steels, are tailored for specific surgical procedures. However, these instruments are prone to contamination and corrosion, primarily due to bacterial adherence and interaction between acidic environments and the metallic surface. To address this issue, herein, we synthesized an innovative hydrogel incorporating polyoxometalate-based ionic liquid (POM–IL) with chitosan and polyvinyl alcohol (Q10[V18O42] @ PVA–CS hydrogel). This hydrogel demonstrated exceptional corrosion product removal. It exhibited a well–defined morphology, superior thermal stability and effective corrosion product removal properties, capable of peeling off corrosion layers without damaging the underlying material as supported by SEM and EIS data. The Q10[V18O42] @ PVA-CS hydrogel was comprehensively characterized by fourier transform infrared, scanning electron, energy dispersive X–rays, powder X–rays, ultraviolet–visible spectroscopy, thermal gravimetric analysis, differential scanning calorimetry and electrochemical impedance spectroscopy. When applied to corroded scalpel handle, the hydrogel coating facilitated the removal of 6.1% weight without harming the scalpel surface. Electrochemical impedance measurements showed a significant charge transfer resistance reduction from 71.1 Kῼ (coated) to 34.2 Kῼ (uncoated) after removing the coating, highlighting its efficacy. These findings positions, Q10[V18O42] @ PVA–CS hydrogel as a multifunctional material with broad applications.
AB - Surgical instruments, such as AISI–420 and AISI–304, commonly made of titanium alloys and stainless steels, are tailored for specific surgical procedures. However, these instruments are prone to contamination and corrosion, primarily due to bacterial adherence and interaction between acidic environments and the metallic surface. To address this issue, herein, we synthesized an innovative hydrogel incorporating polyoxometalate-based ionic liquid (POM–IL) with chitosan and polyvinyl alcohol (Q10[V18O42] @ PVA–CS hydrogel). This hydrogel demonstrated exceptional corrosion product removal. It exhibited a well–defined morphology, superior thermal stability and effective corrosion product removal properties, capable of peeling off corrosion layers without damaging the underlying material as supported by SEM and EIS data. The Q10[V18O42] @ PVA-CS hydrogel was comprehensively characterized by fourier transform infrared, scanning electron, energy dispersive X–rays, powder X–rays, ultraviolet–visible spectroscopy, thermal gravimetric analysis, differential scanning calorimetry and electrochemical impedance spectroscopy. When applied to corroded scalpel handle, the hydrogel coating facilitated the removal of 6.1% weight without harming the scalpel surface. Electrochemical impedance measurements showed a significant charge transfer resistance reduction from 71.1 Kῼ (coated) to 34.2 Kῼ (uncoated) after removing the coating, highlighting its efficacy. These findings positions, Q10[V18O42] @ PVA–CS hydrogel as a multifunctional material with broad applications.
KW - Chitosan
KW - Corrosion
KW - Hydrogel
KW - Ionic liquids
KW - Polyoxometalate
UR - https://www.scopus.com/pages/publications/105007776372
U2 - 10.1016/j.poly.2025.117637
DO - 10.1016/j.poly.2025.117637
M3 - Article
AN - SCOPUS:105007776372
SN - 0277-5387
VL - 279
JO - Polyhedron
JF - Polyhedron
M1 - 117637
ER -