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[Display omitted] • UV sensing sensitivity reaches μW/cm2 level using color spaces. • Naked-eye-based dosimetry is enabled by wearable UV sensor. • UV radiation warning is achieved based on smart UV sensing textile. • High fatigue resistance, low-cost fabrication and nice portability. A dual-channel photochromic Schiff base HBA is reported herein, which undergoes a reversible tautomerism in response to UV exposure, showing visible changes in both color and fluorescence. The spectral behavior, fatigue resistance, sensitivity are studied. The quantification of photochromic fluorescence/color change is solved by applying color spaces and chromatic aberration. HBA is further fabricated into low-cost wearable sensor and smart textile, enabling visual feedback under UV radiation. It demonstrates a low-costing platform for naked-eye-based dosimetry of outdoor UV radiations, providing an early warning for excessive UV exposure. [ABSTRACT FROM AUTHOR]

• Si was successfully doped in the metastable OCP crystals by a precipitation method. • Si doping led to the contraction of OCP structure with smaller lattice parameters. • Si doping preferred forming a cluster-like hierarchical structure of OCP crystals. • Si-OCP notably promoted the proliferation and osteogenic differentiation of BMSCs. • Si-OCPs enhanced the responses of BMSCs by ionic release and mineral deposits. Silicon was successfully doped into an intermediate precursor of biological apatite, octacalcium phosphate (OCP), accompanied with a lattice contraction. Si-doped OCP significantly enhanced the proliferation and osteogenic capacities of bone marrow mesenchymal stem cells by the synergistical effect of bioactive ions release and mineral deposits, providing a potential bone substitute. [ABSTRACT FROM AUTHOR]

• Y 2 O 3 addition causes the evolution of microstructure and distribution of TiC. • Y 2 O 3 addition increases hardness and adhesive strength of the coating. • Adding Y 2 O 3 inhibits the crack of coating in the LBE cavitation erosion condition. This work proves that Y 2 O 3 addition could significantly improve the mechanical properties of laser cladded FeCrAlTiC coatings. Due to the formation of Y 2 TiO 5 and Y 2 Ti 2 O 7 after adding Y 2 O 3 , the TiC particles in coating were refined and their morphologies changed from short bar to sphere. Comparing with the coatings without Y 2 O 3 , the microhardness of the coating increased by 9.88 %, and the adhesive strength of the coating increased by 53.7 %. Moreover, the coating adding Y 2 O 3 showed much better cavitation erosion resistance in high temperature liquid Pb-Bi alloys than the coatings without Y 2 O 3. [ABSTRACT FROM AUTHOR]

[Display omitted] • A quantitative method for analyzing photochromism was described. • A photo-responsive film serving as a sensitive UV sensor was demonstrated. • A facile low-cost photo-patterning technique was developed. Photochromic materials are widely applied in many fields, but their applications are partly limited by the complexity in both synthesis and device-fabrication, as well as the difficulty in quantitative analysis. We developed a photochromic compound (DHAIA) capable of changing color and fluorescence upon UV radiation. The change can be quantitatively analyzed via CIELAB color space, further yielding color shift (Δ E Lab) values that can be either recognized by instruments or detected by naked eyes. The compound can be fabricated into a photo-responsive film to serve as a sensitive UV sensor, allowing a low detection limit down to 20 μW/cm2 (UV radiation intensity). In addition, a photo-patterning technique was demonstrated, wherein patterns can be printed using either UV light or sunlight. [ABSTRACT FROM AUTHOR]

Novel silica rich core-sheath ceramic microfibers where yttria stabilized zirconia core referring as ZY@S have been developed by co-axial electrospinning for dental composites reinforcement. The out layer enables sufficient silanization and refractive index with resin matrix. Majority composition of these microfibers was silica. The 2.5% or 5% ZY@S microfibers reinforced dental composites have improved flexural strength and modulus than control without microfibers. The composites reinforced by ZY@S microfibers retain translucency and esthetics. The results have demonstrated that these novel structured ceramic microfibers are potential reinforcing materials for dental composites. [ABSTRACT FROM AUTHOR]