Electrochemical and Spectroscopic Studies of Riboflavin

Calcium Alginate as an Active Device Component for Light-Triggered Degradation of 2D MoS2-Based Transient Electronics

“…Lastly, we propose the underlying mechanism for the Ca-AR-driven degradation of 2D MoS 2 layers in the context of their molecular interactions, as presented in Figure d. Molecules of alloxazine riboflavin incorporated into calcium alginate composites are known to exhibit a broad span of absorbance spectra, undergoing photodegradation upon exposure to UV–vis light illuminations . Our study mainly focuses on investigating the UV–vis light-induced oxidation of 2D MoS 2 layers, which generates ROS, a byproduct of the photodegraded riboflavin.…”

“…Molecules of alloxazine riboflavin incorporated into calcium alginate composites are known to exhibit a broad span of absorbance spectra, undergoing photodegradation upon exposure to UV−vis light illuminations. 68 Our study mainly focuses on investigating the UV−vis light-induced oxidation of 2D MoS 2 layers, which generates ROS, a byproduct of the photodegraded riboflavin. In a basic medium, the photodegraded riboflavin is known to form various species, such as formylmethylflavin, lumichrome (LC), and lumiflavin, along with ROS, specifically, singlet oxygen ( 1 O 2 ) 69,70 For simplicity, the schematic illustration in Figure 5d focuses on a formation of LC (main photodegradation product) and its subsequent generation of 1 O 2 .…”

Interleaved Electroactive Molecules into LDH Working on Both Electrodes of an Aqueous Battery-Type Device

“…However, among the most promising molecules are those derived from quinone [ 18 , 19 ], nitroxide radicals [ 20 , 21 ], flavins [ 22 , 23 ] or ferrocene [ 24 , 25 , 26 ], while some of them are sustainable, exemplified by biomass-derived energy-storage systems such as alizarin [ 1 ] or alloxazine [ 4 ]. In this work we focus on the electroactivity of flavin derivatives, which have been widely studied in the biological field as a sensor [ 27 ], where they participate in catalyzing a large number of redox reaction [ 28 ]. For example, riboflavin (vitamin B2) acts as an electroactive precursor for the biochemical synthesis of nucleotides.…”