We demonstrate new methods for the control of DNA hybridiza tion formation of a loop with a protective strand is used to inhibit hybridiza tion and a DNA catalyst that opens the loop is used to catalyse hybridization A combination of inhibition and catalysis will allow control of the bonds formed between elements of a self assembled structure We also demonstrate a new class of nanomachine made ...

Two kinds of novel chiral molecular tweezers containing imidazoliums were synthesized from L-alanine, L-phenylalanine, and L-glutamic acid. They are constructed by the chiral imidazolium pincers and two different spacers which are 1,3-bis (bromomethyl)benzene and 2,6-bis(bromomethyl)pyridine, respectively. The enantioselective recognition of L- and D-amino acid derivatives by these molecular tw...

Optical tweezers are widely used to measure molecular forces in biology. Such measurements are often influenced by a nearby surface that can perturb both the calibration of the tweezers as well as the hydrodynamic forces acting on microspheres to which the biomolecules are attached. In this study, we have used a very stable optical tweezers setup employing a recently developed calibration metho...

It has been over 20 years since the pioneering work of Arthur Ashkin, and in the intervening years, the field of optical tweezers has grown tremendously. Optical tweezers are now being used in the investigation of an increasing number of biochemical and biophysical processes, from the basic mechanical properties of biological polymers to the multitude of molecular machines that drive the intern...

Molecular tweezers with a 2,4,6-triphenyl-1,3,5-triazine spacer exhibit diverse dimerization through pi-pi stacking interactions in the solid state, and these dimeric species form highly organized supramolecular networks.