Photocatalytically-active and photocontrollable coatings based on titania-loaded hybrid sol–gel films

Antimicrobial Coatings Obtained by Sol–Gel Method

“…An interesting approach could be also to convert an amorphous non-photoactive titania sol by solvothermal method to a sol-gel coating agent containing the photoactive anatase modification which can be applied by simple dipping onto textiles or other temperature sensitive substrates (Mahltig and Haufe 2010). Alternatively the photoactive TiO 2 particles can be embedded also into a non-active sol-gel coating made from SiO 2 or ZrO 2 (Skorb et al 2009). This embedding has also the advantage that the photoactive component is not directly present on the coated substrate.…”

How Can One Controllably Use of Natural ΔpH in Polyelectrolyte Multilayers?

“…The antimicrobial activity clearly indicates antiseptic/disinfectant activity of the Ag/Al sponge surface. [78] The antimicrobial properties against two different microorganisms: P. fluorescens (a fairly typical example of gramnegative bacterium) and L. lactis (a grampositive bac terium). release of reactive oxygen species (ROS), can result in detection of path ogenic Lactis bacteria releasing bacteriophages due to the effect of ROS the bacteria DNA.…”

Light‐Induced Water Splitting Causes High‐Amplitude Oscillation of pH‐Sensitive Layer‐by‐Layer Assemblies on TiO2

“…Quantitative analysis for the promising pH sensitive assembly of architecture TiO 2 /BCM/PAA/BCM/PAA reveals am odulation of the thickness by afactor of 4and achange of elastic modulus by more than an order of magnitude.T he light-pH coupled actuation of soft matter is efficient for the formation of drug delivery capsules, [7,20] self-repairing coatings,a nd to guide cells via local elasticity changes ( Figure S6), [21] microfluidics,lab-on-chip,sensors,nano-lithography. TheLbL assembly provides an efficient structure for the fast trapping of photogenerated H + ions.T he kinetics of light-pH coupled actuation and modulation show that such LbL surfaces are fast switchable and slowly relaxing.…”