The image displays various biowastes, important constituents, and possible products of the pretreatment process.

• Potential involvements of microbial laccases in the synthesis of silver and gold nanoparticles have been comprehensively assessed. • Treasured roles of microbes and associated enzymes in synthesis of gold and silver nanoparticles have also been presented. • As potential green biocatalysts for the synthesis of metal nanoparticles, microbial laccases may be promisingly used. • Methodologies as well as involved possible mechanisms have been discussed in details in order to disclose the effectiveness of microbial laccases in the synthesis of gold and silver nanoparticles. • Different characterization results of synthesized gold and silver nanoparticles based on UV–Vis spectra, XRD, SEM, TEM and other techniques have also been discussed. • Mechanistic evaluation also shows a hope for the effectiveness of microbial laccases in the synthesis of other metal nanoparticles.

Selective bioconversion of the aromatic methyl group to its aldehyde group is one of the best applications of the laccases. In the present communication, crude laccase, obtained from the liquid culture medium of the fungal strain Pleurotus ostreatus MTCC-1801, has been used for the selective bioconversion of toluene, 3-nitrotoluene, 4-nitrotoluene, 2-fluorotoluene, 4-fluorotoluene, 2-chlorotoluene, 3-chlorotoluene, 4-chlorotoluene, and 3,4-dimethoxytoluene to benzaldehyde, 3-nitrobenzaldehyde, 4-nitrobenzaldehyde, 2-fluorobenzaldehyde, 4-fluorobenzaldehyde, 2-chlorobenzaldehyde, 3-chlorobenzaldehyde, 4-chlorobenzaldehyde, and 3,4-dimethoxybenzaldehyde, respectively, in the presence of 2,2′-azino-bis (3-ethylbenzthiazoline-6-sulfonic acid) diammonium salt (ABTS) as a mediator molecule. Time taken by these conversions was 1–2 h, and average yield of products was more than 93%.

Manganese forms a big number of complexes with Schiff bases that are extensively used as catalysts of oxidation, epoxidation, decarboxylation, coupling reactions, decomposition, urease inhibitory,...

Four novel Mn(III) porphyrins have been synthesized and characterized by UV-Vis, IR, ESI-mass spectroscopy, elemental analysis, magnetic susceptibility studies, TLC, and conductivity measurements....

A novel azido complex of manganese(III) porphyrin with 1-methylimidazole has been synthesized. This complex can be abbreviated as [MnIII(THMPP)N3(1-MeIm)], where THMPP is ...