Paper Strip Identification of Phenyl Thiohydantoins.

The Identification of Streptomycin on Paper Strip Chromatograms.

Folding a Paper Strip to Minimize Thickness

In this paper, we study how to fold a specified origami crease pattern in order to minimize the impact of paper thickness. Specifically, origami designs are often expressed by a mountain-valley pattern (plane graph of creases with relative fold orientations), but in general this specification is consistent with exponentially many possible folded states. We analyze the complexity of finding the ...

A simple synthesis of 2-thiohydantoins.

2-Thiohydantoin derivatives are produced by heating a mixture of thiourea and an alpha-amino acid. The method described offers the advantages of simplicity, low cost, easy work-up and scalability.

Sliding-strip microfluidic device enables ELISA on paper

This article describes a 3D microfluidic paper-based analytical device that can be used to conduct an enzyme-linked immunosorbent assay (ELISA). The device comprises two parts: a sliding strip (which contains the active sensing area) and a structure surrounding the sliding strip (which holds stored reagents-buffers, antibodies, and enzymatic substrate-and distributes fluid). Running an ELISA in...

On stretch minimization problem on unit strip paper

For a given mountain-valley pattern of equidistant creases on a long strip paper, there are many folded states consistent with the pattern. Among these folded states, we like to fold a paper so that the number of the paper layers between each pair of hinged paper segments is minimized. We first formalize this problem as optimization problem. The complexity of the problem is not known. In this p...