➀ Researchers from the Indian Institute of Science and other institutions have developed a nanomaterial-based solution to remediate chromium-contaminated groundwater. The solution uses iron nanoparticles coated with carboxymethyl cellulose (CMC) to remove heavy metals. The research, published in the Journal of Water Process Engineering, demonstrates high efficacy in Cr6+ removal.➁ The study highlights the challenges in synthesizing stable nanoparticles for remediation, addressing the issue of particle aggregation.➂ The developed S-CMC-nZVI material is effective in various environmental conditions and has potential applications in cleaning up contaminated sediments such as those found in Bellandur Lake.