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Molecular Machines based on Macrocyclic Receptors: Switches and Motors
Published in Satish Kumar, Priya Ranjan Sahoo, Violet Rajeshwari Macwan, Jaspreet Kaur, Mukesh, Rachana Sahney, Macrocyclic Receptors for Environmental and Biosensing Applications, 2022
Satish Kumar, Priya Ranjan Sahoo, Violet Rajeshwari Macwan, Jaspreet Kaur, Mukesh, Rachana Sahney
During the past three decades, a good range of different types of mechanically interlocked molecular (MIM) systems has been synthesized. Although MIM structures are not the only way forward to building molecular machines, they provided the first feasible synthetic molecular architecture to address, study and exploit well-defined large-amplitude molecular-level motions (Balzani et al. 2000a, b; Barbara 2001; Kinbara and Aida 2005; Kay et al. 2007; Balzani et al. 2008; Browne and Feringa 2010a, b). It is an attractive subject in ongoing research as the environmental responsiveness of these systems makes them desirable candidates for incorporation into molecular machines. MIMs have also been applied as drug delivery agents and as optical bio-imaging agents. Molecular motors and switches are examples of applications of these molecules in materials research. The chemical applications of these molecules range from catalysts and sensors to polymers. But bringing these structures from the laboratory to the real world or finding a use for these molecules is still a difficult task.
Online measurement of phthalate–particulate matter interactions by membrane introduction mass spectrometry (MIMS)
Published in Journal of Environmental Science and Health, Part A, 2018
Martin A. Angelstad, Erik T. Krogh, George R. Agnes, Chris G. Gill
An apparatus and example methodology to study interactions between gas phase phthalates and particulate matter is described. The apparatus utilizes MIMS as a direct analytical approach to selectively detect and quantify gas phase semi-volatile compounds in real time. The online monitoring of the adsorption and desorption behavior of DMP with C18 derivatized silica particles and fine house dust, as well as gas/particle partition coefficients, are presented. An example of how the apparatus can be used is also demonstrated by monitoring the thermal desorption of compounds from a house dust sample.