The effect of 20 kHz ultrasound on the viability of Cryptosporidium oocysts was investigated. More than 90% of the dispersed Cryptosporidium oocysts could be deactivated in about 1.5 min of continuous sonication. In order to apply this technique to large quantities of contaminated water, quantitative filtration and redispersion of Cryptosporidium oocysts were investigated and found to be easily...

Deterministic population balance models including aggregation phenomena with more than two internal coordinates and without reduction to e.g. moments are to the best of the authors knowledge not published in literature so far. The problem of such models is the high computational demand and long simulation times which can easily reach the duration of weeks. Here the authors present a 3-dimension...

Gold nanorods (GNRs) were encapsulated and dispersed into organic solvents by tetrabenzylthiol resorcinarene (TBTR) and by a poly(dithiocarbamate) derived from tetra- N-methyl(aminomethyl)resorcinarene (TMAR-DTC), formed by the in situ condensation of TMAR with carbon disulfide. The latter proved to be highly effective at enabling the redispersion of GNRs in various organic solvents. GNRs encap...

A rational strategy of magnetic relaxation switches was proposed here to detect a(1)-acid glycoprotein (AGP), an acute phase a-globulin plasma glycoprotein. The assay was based on the relaxation time change between the aggregation of magnetic nanoparticles with concanavalin A and the redispersion with AGP, which can avoid the prozone effect and improve the detection accuracy. The assay was an e...

Abstract Stimuli‐responsive, optically‐active colloidal systems are convenient signal transducers capable of monitoring environmental changes at the nanoscale. We report on coupling chemo‐thermal cycloaddition reaction with temperature‐sensitive, DNA‐coated gold nanoparticles. found that concentration chemical fuel, dictating temperature mixture, is a primary ingredient in controlling extent re...