A new Eosin Y-based 'turnon' fluorescent sensor for ratiometric sensing of toxic mercury ion (Hg) offering unaided eye detection and its antibacterial activity.

A unique fluorescent molecule (ND-S) was obtained from Eosin Y in two simple yet high yielding steps (1). ND-S has special metal ion sensing ability, such that it can selectively detect toxic Hg present in very low concentration in aqueous solutions in the presence of other competing metal ions. The host-guest complexation is ratiometric and is associated with significant increase in fluorescence during the process.

Rationally Designed Ionic Covalent Organic Networks (iCONs) with Efficient Antimicrobial Activities.

Two unique ionic covalent organic networks (iCONs) incorporated with guanidinium motifs were obtained and characterized by various techniques. Upon 8 h of treatment with iCON-HCCP (250 μg/mL), >97% killing of , , and strains was observed. Antimicrobial efficacies against bacteria and fungi were also evident from FE-SEM studies.

Estimation of Prevalence and Comparing the Levels of Stress, Anxiety, Depression, and Psychological Impact Before and After COVID-19 Lockdown Among Front Line Health Care Workers.

The main objective of the study is to estimate the prevalence and compare the levels of psychological impact, anxiety, depression, and stress experienced by the frontline health care workers (HCWs) during the lockdown and post lockdown periods at Apollo Institute of Medical Sciences and Research, Hyderabad, India. All participants involved in the study were evaluated by using depression, anxiety and stress scale 21, the impact of event scale revised scale for post-traumatic stress disorder (PTSD), and a standardized questionnaire. During the lockdown period, the score for depression was observed mean scores to be more in front desk people (2.