Council of Scientific and Industrial Research

Deendayal Mandal

Rajiv Kumar

Absar Ahmad

Murali Sastry

Priyabrata Mukherjee

Mohammed Islam Khan

Satyajyoti Senapati

Ahmad Absar

The present invention provides a new process using biological method for the preparation of immobilized nano-particles of metals. Fungi are used to efficiently prepare immobilized nano-particles of various metals ions such as Au, Ag, Pd, Pt, Ni, Rh and Ru from their aqueous solutions.

Process for immobilized nano-sized metal particles

The process of the invention reports a new biological method, instead of chemical or physical methods, for preparing colloidal nano-sized metal sulphides using fungi.

Process for the preparation of metal sulfide nanoparticles

The present invention provides a new biocatalyst whole cell system for converting cyclic ketones such as cyclopentanone/cyclohexanone to the corresponding lactones such as valerolactone/caprolactone. Another novel aspect of the present invention is that biocatalyst fungus f.sp. ciceri NCIM 1282 species has been found to be an efficient biocatalyst system for any biotransformation for the first time.

Process for preparation of a lactone from a cyclic ketone

The invention relates to a biological process for the preparation of nano-sized colloidal metal particles by treating wet fungus or fungus extract with a metal ion solution of the desired metal and separating the biomass to obtain the nano-sized colloidal metal particles.

Growing community of inventors

Maharashtra, India

Deendayal Mandal