It is shown that corannulene-based strained psurfaces can be obtained through the use of mechanochemical Suzuki and Scholl reactions.B esides being solvent-free,t he mechanochemical synthesis is high-yielding,fast, and scalable. Therefore,gram-scale preparation can be carried out in afacile and sustainable manner.The synthesized nanographene structure carries positive (bowl-like) and negative (saddle-like) Gaussian curvatures and adopts an overall quasi-monkey saddle-type of geometry.Interms of properties,the non-planar surface exhibits ah igh electron affinity that was measured by cyclic voltammetry,w ith electrolysis and in situ UV/vis spectroscopye xperiments indicating that the one-electron reduced state displays al ong lifetime in solution. Overall, these results indicate the future potential of mechanochemistry in accessing synthetically challenging and functional curved p-systems. Scheme 1. Synthesis of curved p-systems.

Overview of the use of 3D printing manufacturing methods to fabricate electrolytic and electrochemical flow systems.

An all-organic cell consisting of modified forms of vitamin E and vitamin K exhibited a large cell voltage, which was optimized via the use of diethyl malonate that served as a weak acid and hydrogen bond donor.

It is shown that corannulene-based strained psurfaces can be obtained through the use of mechanochemical Suzuki and Scholl reactions.B esides being solvent-free,t he mechanochemical synthesis is high-yielding,fast, and scalable. Therefore,gram-scale preparation can be carried out in afacile and sustainable manner.The synthesized nanographene structure carries positive (bowl-like) and negative (saddle-like) Gaussian curvatures and adopts an overall quasi-monkey saddle-type of geometry.Interms of properties,the non-planar surface exhibits ah igh electron affinity that was measured by cyclic voltammetry,w ith electrolysis and in situ UV/vis spectroscopye xperiments indicating that the one-electron reduced state displays al ong lifetime in solution. Overall, these results indicate the future potential of mechanochemistry in accessing synthetically challenging and functional curved p-systems. Scheme 1. Synthesis of curved p-systems.

This study investigated the influence of ‘snackification’ in Singaporean diets, leading to increased dietary acrylamide exposure. Acrylamide concentrations in commonly consumed foods within and outside the main meals were measured using liquid chromatography with tandem mass spectrometry (LC-MS/MS). High acrylamide concentrations were detected in vegetables cooked at high temperatures (ranging from 0.5 to 478.4 µg/kg) and potato-based crackers and chips (ranging from 81.8 to 2095.8 µg/kg). The estimated total dietary exposure for the Singapore population was 0.165 µg/kg bw/day for general consumers and 0.392 µg/kg bw/day for high consumers (95th percentile). The acrylamide exposure from outside main meals was nearly equivalent to that from within the main meals. The calculated margins of exposure (MOE) were below 10,000, indicating potential human health concern. These findings highlight the need for industry practices and consumer advisories to reduce acrylamide exposure from foods consumed both within and outside main meals.