“…With the increasing content of AgNWs, two extra peaks at 368.04 and 374.5 eV were observed and gradually increased assigning to Ag 3d 5/2 and Ag 3d 3/2 . [ 22 ] The increasing tread was depicted in the high resolution XPS spectra in Figure 3d. The split Ag 3d peaks clearly showed that with the increase of AgNWs content, the intensity of Ag 3d 5/2 increased, and the peak width of Ag 3d 3/2 widened, indicating that the loading of AgNWs was successfully increased.…”
Wearable strain sensors are expected to meet the requirements of high sensitivity, facile fabrication, and high aesthetics to realize practical applications. However, reported sensitive strain sensors fail to exhibit multicolor due to high light absorption. Herein, a flexible strain sensor with high sensitivity and color‐exhibition ability is fabricated by half‐embedding silver nanowires (AgNWs) into dyeable thermoplastic polyurethane (TPU) films through thermal annealing. A sheet resistance of 11.5 Ω sq−1 and a transmittance above 79.9% at 550 nm is obtained for intact AgNWs/TPU films. A gauge factor of 34 797 is achieved at a tensile strain of 9%, indicating the high sensitivity for monitoring tiny movement changes. Besides, the high transparency allows color exhibition after dying. The multicolor AgNWs/TPU films are further rolled into rod‐shaped yarns and weaved with commercial yarns to form wearable colorful electronics.
“…With the increasing content of AgNWs, two extra peaks at 368.04 and 374.5 eV were observed and gradually increased assigning to Ag 3d 5/2 and Ag 3d 3/2 . [ 22 ] The increasing tread was depicted in the high resolution XPS spectra in Figure 3d. The split Ag 3d peaks clearly showed that with the increase of AgNWs content, the intensity of Ag 3d 5/2 increased, and the peak width of Ag 3d 3/2 widened, indicating that the loading of AgNWs was successfully increased.…”
Wearable strain sensors are expected to meet the requirements of high sensitivity, facile fabrication, and high aesthetics to realize practical applications. However, reported sensitive strain sensors fail to exhibit multicolor due to high light absorption. Herein, a flexible strain sensor with high sensitivity and color‐exhibition ability is fabricated by half‐embedding silver nanowires (AgNWs) into dyeable thermoplastic polyurethane (TPU) films through thermal annealing. A sheet resistance of 11.5 Ω sq−1 and a transmittance above 79.9% at 550 nm is obtained for intact AgNWs/TPU films. A gauge factor of 34 797 is achieved at a tensile strain of 9%, indicating the high sensitivity for monitoring tiny movement changes. Besides, the high transparency allows color exhibition after dying. The multicolor AgNWs/TPU films are further rolled into rod‐shaped yarns and weaved with commercial yarns to form wearable colorful electronics.
“…Above all, these results could illustrate that appropriate Ag nano-particles layer is an effective way to induce osteogenic differentiation with no obvious negative effects on cell viability. 21 Figure 5.The gene expression of ALP, OCN, COL-1, RUNX2 and OPN in different groups at 7 d, * p < .05, ** p < .01.…”
Section: Resultsmentioning
confidence: 99%
“…Above all, these results could illustrate that appropriate Ag nano-particles layer is an effective way to induce osteogenic differentiation with no obvious negative effects on cell viability. 21…”
“…Our previous study combined the Sr nanolayer with hot-alkaline treated surfaces and formed hierarchical micro/ nano structure, which leached Sr 2+ and showed excellent pro-osteogenic property. 21 Hence, we speculated that the combination of micro/nano structure and Ag + function could fabricate superior interface to promote antibacterial property and reduce cytotoxicity simultaneously.…”
In order to enhance the antibacterial property of titanium implant without inducing obvious cytotoxicity, the combination of Ag nanolayer and micro/nano surface structure was conducted by magnetron sputtering and hot-alkali treatment in this study. A series of specimens (AH-Ti, AH-Ti/Ag0.25, AH-Ti/Ag1, AH-Ti/Ag2, and AH-Ti/Ag5) were prepared with different sputtering durations (0 min, 0.25 min, 1 min, 2 min, 5 min), respectively, all realizing long-term release of Ag+. In vitro experiments indicated that AH-Ti/Ag1 group possessed good cytocompatibility, nice osteogenic ability, and excellent antibacterial efficiency as well. In addition, AH-Ti/Ag0.25 showed good biocompatibility, while the reduction of S.aureus (78.5%) was not enough compared with AH-Ti/Ag1. Although the AH-Ti/Ag2 and AH-Ti/Ag5 group showed superior antibacterial activity, their obvious cytotoxicity caused low ALP and mineralization level. Therefore, the design of suitable Ag nanolayer coating combined with micro/nano surface structure (AH-Ti/Ag1) might be a promising strategy to enhance osteogenic property and maintain excellent antibacterial ability at the same time.
“…Investigations on the antibacterial qualities of Ti-Ag alloys have also been conducted [194,202,203]. With an increase in Ag content, the alloy's antibacterial activity and corrosion resistance dramatically enhanced while maintaining biocompatibility [202][203][204]. Following surgery when the tissue is vulnerable to pathogenic bacteria, antibacterial capabilities are essential as well as shortly after osseointegration, whenever biofilms and the start of peri-implantitis may develop [160].…”
Section: Listparagraph4listparagraph Surface Modification Of Ti Alloy...mentioning
Titanium and its alloys have already been widely used as implant materials due to their outstanding mechanical characteristics and biocompatibility. Notwithstanding this, researchers and businesses alike have continued to actively pursue superior alloys since there are still problems which need urgent consideration. One of these is a noteworthy difference in the implant material’s elastics modulus and that of natural bone, which result into an issue of stress shielding. With prolonged use Ti alloys releases dangerous ions. The Ti alloy surface has a low bioactivity, which prolongs the healing process. β-Ti alloys could be used as viable alternatives when creating dental implants. Additionally, β-Ti alloys characteristics, such as low Young modulus, increased strength, appropriate biocompatibility, and strong abrasion and corrosion resistance, serve as the necessary evidence. Ti alloys when altered structurally, chemically, and by thermomechanical treatment thereby enabling the creation of material which can match the requirements of a various clinical practise scenarios. Additional research is needed which can focused on identifying next century Ti alloys consisting of some more compatible phase and transforming the Ti alloys surface from intrinsically bioinert to bioactive to prevent different issues. In order to give scientific support for adopting β-Ti-based alloys as an alternative to cpTi, this paper evaluates the information currently available on the chemical, mechanical, biological, and electrochemical properties of key β-titanium alloys designed from the past few years. This article is also focusing on β-titanium alloy, its properties and performance over other type of titanium alloy such as α titanium alloys. However, in-vivo research is needed to evaluate novel β titanium alloys to support their use as cpTi alternatives.
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