Algae-mediated copper nanocatalyst for aerobic oxidation and dye decolourization via sustainable wastewater treatment.

In recent years, several physicochemical methods have been proposed for decolourising textile dyes; however, few have been adopted by the textile industry because of factors such as high cost, low efficiency, and limited applicability to a wide range of dyes. The current study focuses on synthesising algae-mediated Cu and CuO nanocatalysts (Alg-Cu and Alg-CuO) using natural waste materials from green algae. The synthesised Alg-CuO nanocatalyst was characterised and confirmed using SEM, TEM, UV, FT-IR, XRD, XPS, GC-MS, and TGA.

Synthesis, antimicrobial, antioxidant, tyrosinase inhibitory activities, and computational studies of novel chromen[2,3-c]pyrazole derivatives.

In this study, one-pot multicomponent reactions of novel chromeno[2,3-c]pyrazole derivatives (1-14) were performed using an AlCl catalyst via cyclisation. Various spectral and chromatographic techniques were used to elucidate the structure of the synthesised derivatives (1-14). The synthesised compounds were then inspected for their antibacterial, antioxidant, and tyrosinase inhibition activities.

Antimicrobial and cytotoxic activities of isoniazid connected menthone derivatives and their investigation of clinical pathogens causing infectious disease.

Background: This work is development of new molecules of isoniazid derivatives as dealing with potential of antimicrobial activity against clinical pathogens causing infectious disease. Antimicrobial of novel Mannich base derivatives can be achieved via one-pot synthesis in green chemistry approach. This method offers efficient, mild reaction conditions and high yields.

Dopamine-Mediated Vanillin Multicomponent Derivative Synthesis via Grindstone Method: Application of Antioxidant, Anti-Tyrosinase, and Cytotoxic Activities.

Purpose: This study aimed to determine the extent of contribution of dopamine to antioxidant and anti-tyrosinase activities, by dopamine addition to vanillin. This study achieved the synthesis of dopamine-associated vanillin Mannich base derivatives prepared via a one-step reaction involving a green chemistry approach, and investigation of antioxidant and anti-tyrosinase activities.

Methods: Novel one-pot synthesis of Mannich base dopamine-connected vanillin () derivatives can be achieved via green chemistry without using a catalyst.