Matches in SemOpenAlex for { <https://semopenalex.org/work/W4384934007> ?p ?o ?g. }
Showing items 1 to 77 of
77
with 100 items per page.
- W4384934007 abstract "The present study sought to determine the effect of incorporating a Chitosan-TiO2 nano-composite on the color stability of pigmented Room Temperature Vulcanization (RTV) maxillofacial silicone subjected to a variety of accelerated aging conditions. The experimental setup consisted of one hundred groups of five disk-shaped specimens (22mm diameter, 2mm thick) each, created using RTV silicon elastomer type A-2186, with the total sample distributed into four groups based on the pigments combined with the silicon—specifically, brilliant red, blue, and yellow dry intrinsic pigments (at 0.2% concentration by weight) and a fourth group that remained non-pigmented.
 Each of these primary groups was further subdivided into five categories corresponding to the silicon variants treated with different nanoparticles—2% TiO2, 3% Chitosan, a hybrid nano-combination of 1% TiO2/Chitosan, 1% synthesized Chitosan-TiO2 Nanocomposite, and a control group devoid of nanoparticle additions. The synthesized Chitosan-TiO2 Nanocomposite was effectively prepared using the core-shell method.
 The color stability of each silicon category, irrespective of whether pigmented or non-pigmented was evaluated by calculating the color difference (ΔE) pre- and post-subjection to five distinct accelerated aging conditions: 30 hours in an antibacterial cleaning solution, six months in sebum, six months in sweat, UV-accelerated aging for 720 hours, and outdoor weathering for six months. Color measurements were taken using a Colorimeter within the CIELAB color system.
 Statistical analyses, including one-way ANOVA at a significance level of p < 0.05, were employed to discern significant differences among the various accelerated aging conditions across the five silicon categories. Further comparisons were made using Dennett's T3 multiple comparison test, Tukey HSD multiple comparisons, and a t-test, with SPSS for Windows version 27.0 as the software platform.
 Results indicated that all silicon types, whether pigmented or not, exhibited varying degrees of color change under different aging conditions. Red-colored samples, across all silicon categories, demonstrated significant color alterations after 720 hours of UV-accelerated aging, with the most pronounced change in the 3% Chitosan samples and the least in the 2% TiO2 samples. Six months of outdoor weathering led to a marked increase in ΔE values across all categories. The blue-pigmented silicon samples treated with 2% TiO2 showed the highest color modification, while the yellow-pigmented silicon and non-pigmented silicon also underwent significant color shifts, particularly in the control and Chitosan-TiO2 categories, respectively.
 The study underscores the pervasive influence of outdoor weathering on color stability across all silicon categories. It also demonstrates that while nanoparticle incorporation offers some resilience against accelerated aging, it fails to provide adequate protection against the specific effects of UV radiation encountered during outdoor weathering." @default.
- W4384934007 created "2023-07-22" @default.
- W4384934007 creator A5004823828 @default.
- W4384934007 creator A5060710791 @default.
- W4384934007 creator A5088316496 @default.
- W4384934007 date "2023-07-19" @default.
- W4384934007 modified "2023-09-25" @default.
- W4384934007 title "Chitosan -TiO2 Hybrid Nano-Composite Impregnated in Type A -2186 Maxillofacial Silicon Subjected to Different Accelerated Aging Conditions: The Color Stability Evaluation." @default.
- W4384934007 doi "https://doi.org/10.20944/preprints202307.1336.v1" @default.
- W4384934007 hasPublicationYear "2023" @default.
- W4384934007 type Work @default.
- W4384934007 citedByCount "0" @default.
- W4384934007 crossrefType "posted-content" @default.
- W4384934007 hasAuthorship W4384934007A5004823828 @default.
- W4384934007 hasAuthorship W4384934007A5060710791 @default.
- W4384934007 hasAuthorship W4384934007A5088316496 @default.
- W4384934007 hasBestOaLocation W43849340071 @default.
- W4384934007 hasConcept C104779481 @default.
- W4384934007 hasConcept C106131492 @default.
- W4384934007 hasConcept C118820876 @default.
- W4384934007 hasConcept C120665830 @default.
- W4384934007 hasConcept C121332964 @default.
- W4384934007 hasConcept C13965031 @default.
- W4384934007 hasConcept C155672457 @default.
- W4384934007 hasConcept C156423089 @default.
- W4384934007 hasConcept C159985019 @default.
- W4384934007 hasConcept C171250308 @default.
- W4384934007 hasConcept C178790620 @default.
- W4384934007 hasConcept C185592680 @default.
- W4384934007 hasConcept C186991048 @default.
- W4384934007 hasConcept C191897082 @default.
- W4384934007 hasConcept C192562407 @default.
- W4384934007 hasConcept C2779732960 @default.
- W4384934007 hasConcept C2779769944 @default.
- W4384934007 hasConcept C31972630 @default.
- W4384934007 hasConcept C41008148 @default.
- W4384934007 hasConcept C544956773 @default.
- W4384934007 hasConcept C64584667 @default.
- W4384934007 hasConcept C92880739 @default.
- W4384934007 hasConceptScore W4384934007C104779481 @default.
- W4384934007 hasConceptScore W4384934007C106131492 @default.
- W4384934007 hasConceptScore W4384934007C118820876 @default.
- W4384934007 hasConceptScore W4384934007C120665830 @default.
- W4384934007 hasConceptScore W4384934007C121332964 @default.
- W4384934007 hasConceptScore W4384934007C13965031 @default.
- W4384934007 hasConceptScore W4384934007C155672457 @default.
- W4384934007 hasConceptScore W4384934007C156423089 @default.
- W4384934007 hasConceptScore W4384934007C159985019 @default.
- W4384934007 hasConceptScore W4384934007C171250308 @default.
- W4384934007 hasConceptScore W4384934007C178790620 @default.
- W4384934007 hasConceptScore W4384934007C185592680 @default.
- W4384934007 hasConceptScore W4384934007C186991048 @default.
- W4384934007 hasConceptScore W4384934007C191897082 @default.
- W4384934007 hasConceptScore W4384934007C192562407 @default.
- W4384934007 hasConceptScore W4384934007C2779732960 @default.
- W4384934007 hasConceptScore W4384934007C2779769944 @default.
- W4384934007 hasConceptScore W4384934007C31972630 @default.
- W4384934007 hasConceptScore W4384934007C41008148 @default.
- W4384934007 hasConceptScore W4384934007C544956773 @default.
- W4384934007 hasConceptScore W4384934007C64584667 @default.
- W4384934007 hasConceptScore W4384934007C92880739 @default.
- W4384934007 hasLocation W43849340071 @default.
- W4384934007 hasOpenAccess W4384934007 @default.
- W4384934007 hasPrimaryLocation W43849340071 @default.
- W4384934007 hasRelatedWork W2005496670 @default.
- W4384934007 hasRelatedWork W2014771160 @default.
- W4384934007 hasRelatedWork W2054113325 @default.
- W4384934007 hasRelatedWork W2163980540 @default.
- W4384934007 hasRelatedWork W2167516940 @default.
- W4384934007 hasRelatedWork W2750665574 @default.
- W4384934007 hasRelatedWork W3023835079 @default.
- W4384934007 hasRelatedWork W3048672776 @default.
- W4384934007 hasRelatedWork W4283220917 @default.
- W4384934007 hasRelatedWork W4386030395 @default.
- W4384934007 isParatext "false" @default.
- W4384934007 isRetracted "false" @default.
- W4384934007 workType "article" @default.