Recent Advances in the Use of CoPc-MWCNTs Nanocomposites as Electrochemical Sensing Materials

Abstract

Cobalt phthalocyanine multiwalled carbon nanotubes (CoPc-MWCNTs), a nanocomposite, are extraordinary electrochemical sensing materials. This material has attracted growing interest owing to its unique physicochemical properties. Notably, the metal at the center of the metal phthalocyanine structure offers an enhanced redox-active behavior used to design solid electrodes for determining varieties of analytes. This review extensively discusses current developments in CoPc-MWCNTs nanocomposites as potential materials for electrochemical sensors, along with their different fabrication methods, modifying electrodes, and the detected analytes. The advantages of CoPc-MWCNTs nanocomposite as sensing material and its future perspectives are carefully reviewed and discussed.

New Trends in Uric Acid Electroanalysis

“…The outlook for uric acid electroanalysis involves different configurations of nanocomposites. Carbon nanotubes (CNTs), including multi-walled nanotubes (MWCNTs) and single-walled nanotubes (SWCNTs) [107], are the most preferred for wide range of biological metabolites [108][109][110][111] because of their large specific surface area, enhanced activity and great stability. Moreover, nanocomposites amplify the electron transfer, resulting in a rapid and higher potential response [107].…”

“…The latest research is investigating sensors based on carbon nanotubes modified with lanthanum hydroxide (La(OH) 3 ) [112], Zn_MM [113], cobalt phthalocyanine [107] or bentonite (Bent) and L-cysteine [114].…”

A Novel Multi-Effect Photosensitizer for Tumor Destruction via Multimodal Imaging Guided Synergistic Cancer Phototherapy

“…[26][27][28][29] This thus points to the change in the central metal ion of phthalocyanine, determining its different photophysical and photochemical properties. [30][31][32][33] On the other hand, Li and colleagues introduced amino groups in the peripheral direction of the PS, thereby increasing its photothermal effect. 34 This inspires us that the peripheral substituents containing photo-induced electron transfer (PET) effect groups could effectively inhibit the fluorescence emission and reactive oxygen species (ROS) generation, so as to also promote the transition of phthalocyanine PSs from PDT to PTT activity.…”

Enzyme-Mimics for Sensitive and Selective Steroid Metabolite Detection

“…In early research, cobalt phthalocyanine (CoPc) was recognized for O 2 reduction for low-cost fuel cell applications . Phthalocyanines with different metal centers (e.g., iron, cobalt, copper, nickel, and ruthenium) have been reported to exhibit electrocatalytic activity for electrochemical oxidation or reduction of various biomarkers, molecules, and ions, including glucose, uric acid, lactic acid, paracetamol, creatinine, CO 2 , oxygen evolution reaction, dopamine, ascorbic acid, H 2 O 2 , nitrite, Cd 2+ and Pb 2+ ions, cysteine, and pyridoxine . In this work, we employed copper phthalocyanine tetrasulfonate (CuPcTS) to catalyze cortisol reduction.…”