2 research outputs found
Multifunctional Polyurethane Sponge for Polymerase Chain Reaction Enhancement
Selective
filtering of target biomaterials from impurities is an
important task in DNA amplification through polymerase chain reaction
(PCR) enhancement and gene identification to save endangered animals
and marine species. Conventional gene extraction methods require complicated
steps, skilled persons, and expensive chemicals and instruments to
improve DNA amplification. Herein, we proposed an alternative method
for overcoming such challenges by imparting secondary functionality
using commercially available polyurethane (PU) sponges and cost-effective
fabrication approaches through polydopamine and polysiloxane coatings.
The porous, highly flexible, and chemically modified superhydrophilic
and superhydrophobic PU sponges allow large surface areas and mechanically
stable frames for effective extraction of genomic DNA through selective
filtering of fish tissues and oils. Furthermore, these chemically
modified PU sponges allow separation of genes and improvement of PCR
for DNA amplification for the identification of fish species. The
combination of a simple fabrication method and functionalized PU sponges
could be a useful platform for PCR enhancement and gene-based identification
of species for practical applications
Fabrication of Flexible, Redoxable, and Conductive Nanopillar Arrays with Enhanced Electrochemical Performance
Highly ordered and
flexible nanopillar arrays have received considerable interest for
many applications of electrochemical devices because of their unique
mechanical and structural properties. Here, we report on highly ordered
polyoxometalate (POM)-doped polypyrrole (Ppy) nanopillar arrays produced
by soft lithography and subsequent electrodeposition. As-prepared
POM-Ppy/nanopillar films show superior electrochemical performances
for pseudocapacitor and enzymeless electrochemical sensor applications
and good mechanical properties, which allowed them to be easily bent
and twisted. Regarding electrochemical characteristics for pseudocapacitive
electrodes, the POM-Ppy/nanopillar electrodes are capable of delivering
high areal capacitance of 77.0 mF cm<sup>–2</sup>, high rate
performance, and good cycle life of ∼100% retention over 3500
cycles even when bent. Moreover, the study suggests that the POM-Ppy/nanopillar
electrodes have an excellent electrocatalytic activity toward hydrogen