What do we mean when we talk about Supramolecular Chemistry? The easiest way to describe supramolecular chemistry is to consider the concept of “chemistry beyond the molecule”—We can think of supramolecular chemistry as more than the sum of the parts. In other words the way molecules interact and come together generates new and exciting properties that surpass those of the molecule. The very co...

The increasing importance of studies on soft matter and their impact on new technologies, including those associated with nanotechnology, has brought intermolecular and surface forces to the forefront of physics and materials science, for these are the prevailing forces in micro and nanosystems. With experimental methods such as the atomic force spectroscopy (AFS), it is now possible to measure...

We describe a three-dimensional geometry in which both attractive and repulsive Casimir forces arise using ordinary metallic materials, as computed via an exact numerical method no uncontrolled approximations . The geometry consists of a zipperlike, glide-symmetric structure formed of interleaved metal brackets attached to parallel plates—because of the interleaving pattern, a net repulsive for...

Early Diagnosis of Cancers In article 2205445, Shangquan Wu, Qingchuan Zhang, and co-workers develop an ultra-sensitive nanomechanical sensor, which uses a magnetic-driven microcantilever array to selectively detect oncogenic exosomes. The magnetic force produces far greater deflection than that produced by the intermolecular interaction force, even in presence very low concentrations target su...

The purpose of this study was to evaluate the influence of heating, cast bonding, and subsequent polishing procedures on attractive force of magnetic attachments. Two magnetic attachment systems with keepers of different chemical compositions (Hicorexslim 3013, 447J1; Magfit EX400, AUM20) were employed. Keepers examined were: (1) untreated; (2) heated; (3) cast-bonded with Ag-Pd alloy; (4) cast...

A force field for water has been developed entirely from first principles, without any fitting to experimental data. It contains both pairwise and many-body interactions. This force field predicts the properties of the water dimer and of liquid water in excellent agreement with experiments, a previously elusive objective. Precise knowledge of the intermolecular interactions in water will facili...

Recent advances in molecular force measurements have resulted in the quantification of the nanomechanical properties of single molecular bonds, and elucidated novel relationships between molecular architecture and biomolecular adhesion. The measured forces to rupture single intermolecular bonds revealed novel and unexpected ways that proteins respond to mechanical force. Measurement of the magn...

Intermolecular B-N coordination has been recognized as a promising driving force for molecular self-organization. However, direct utilization of this intermolecular interaction as building bridge for the supramolecular self-assembly of chemical functionalities to form nano-sized architectures remains a daunting challenge. Here, we outline a multiple intermolecular B-N coordination based supramo...