Carbon dots (C-dots) with multicolour fluorescence feature are presently gaining much importance in the area of bioanalytics and bioimaging due to their biocompatible and strong fluorescent nature. Herein, we report a one-step method for synthesizing multicolour, surface passivated carbon dots using chitosan as a 'greener' source through microwave pyrolysis approach. The present study also deals with the synthesis of chitosan-pDNA (GFP) nanocomplexes for gene delivery applications. Development of such biofriendly imaging agents and nanocarriers has huge diagnostic and therapeutic potential.

Emergence of multi-resistant organisms (MROs) leads to ineffective treatment with the currently available medications which pose a great threat to public health and food technology sectors. In this regard, there is an urgent need to strengthen the present therapies or to look over for other prospective alternatives such as use of "metal nanocomposites" and "drug loaded polymeric nanofibers." Herein, we report synthesis of silver-zinc oxide (Ag-ZnO) nanocomposites and drug loaded chitosan-PEO (Polyethylene oxide) nanofibers with excellent antibacterial activity. Formulation of such...

Extensive utilization of synthetic dyes in various industries poses a great threat to the environment. These dyes are toxic in nature and cause serious health problems in the living beings. The presence of these dyes in water also affects the photosynthetic activity of aquatic plants as they interfere with the incoming sun rays and gas dissolution. Although different methodologies have been adopted to treat the dye contaminated water but still many improvements have to be done. Metal oxide nanofibers present a better alternative in waste water treatment which are able to degrade the organic...