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Carbon nitride-catalyzed photocatalytic strategies for the oxidation of alcohols, reduction of nitro compounds, coupling reactions, and synthesis of esters, phenols, and sulfoxides have been summarized.

We aimed to determine the type and frequency of critical incidents in a multidisciplinary intensive care unit, to determine outcomes consequent to these incidents and to devise corrective strategies. Prospectively collected data on critical incidents during a 33-month period were analysed. In all, 1918 patients were admitted to the unit during the study period. Each incident was analysed in detail. A system-based corrective strategy was sought for and implemented as appropriate. In these patients, 280 critical incidents were reported during the study period, resulting in 3.4 incidents per 100 patient days. Airway-related incidents were the most frequent (32.8%) followed by line-related (21.8%) and drug-related (15%) incidents. Thirty-two incidents (11.4%) led to adverse outcomes. There were four deaths that occurred as a direct consequence of or contributed to by the incident, all due to airway-related incidents. A major physiological change occurred in 3.6% of incidents, while 6.4% of incidents resulted in a minor physiological change. Critical incidents were common in our multidisciplinary ICU, although adverse outcomes were rare.

Nicotine, being a major constituent of secondhand smoke (SHS) or cigarette smoke, is quite harmful for human health, because of its carcinogenic potential. Hence, its detection in air has become very significant. Herein, for the first time, a metal organic nanotube (MONT) is being used for the detection of nicotine from cigarette smoke at room temperature. MONT is a unique class of metal-organic framework (MOF) where independent one-dimensional tubular structures are formed. MONT, [Zn3(btc)2(μ3-OH)­(DMF)]·H2O (1), reported here, possesses distinctive structural features, i.e., three differently shaped porous channels (circular, star, and oval), formed by periodic linkage of btc with Zn, giving rise to the formation of a highly porous framework structure. When exposed to cigarette smoke in the presence of sunlight, this MONT display a gasochromic effect, i.e., a significant color change from light yellow to dark pink within just 20 s. A high sensitivity with low detection limit of ∼ 23.3 μM was witnessed. The significance of this work lies in the visible-light-assisted, fast, easy, naked-eye, specific sensing of nicotine from cigarette smoke, which is the first of its kind.

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