Surfactant-based nanostructures are promising materials for designing novel colorimetric biosensors based on aggregation/disaggregation phenomena. In this work, a sensor the plasmonic shift of surfactant-capped gold nanoparticles via disaggregation mechanism was developed. To perform this, optimum SDS concentration firstly determined in order to form Au@16-s-16/SDS complex aggregates with well-...

Due to the development of nanotechnology and changing customer demands for food safety hygiene, packaging industry is growing significantly. In today's worldwide market, active offers a number advantages over traditional wrapping because its capacity absorb or release substances improve shelf life food. Traditional materials are difficult recycle made from nonrenewable fossil fuels. The biodegr...

Using a path integral technique, we show exactly that for a semiflexible biopolymer in constant extension ensemble, no matter how long the polymer and how large the external force, the effects of short-range correlations in the sequence-dependent spontaneous curvatures and torsions can be incorporated into a model with well-defined mean spontaneous curvature and torsion as well as a renormalize...

The controlled exchange of molecules between organelles, cells, or organisms and their environment is crucial for life. Biological gels such as mucus, the extracellular matrix (ECM), and the biopolymer barrier within the nuclear pore are well suited to achieve such a selective exchange, allowing passage of particular molecules while rejecting many others. Although hydrogel-based filters are int...