scholarly journals Mixed-dimensional MXene-hydrogel heterostructures for electronic skin sensors with ultrabroad working range

2020 ◽  
Vol 6 (48) ◽  
pp. eabb5367
Author(s):  
Yichen Cai ◽  
Jie Shen ◽  
Chi-Wen Yang ◽  
Yi Wan ◽  
Hao-Ling Tang ◽  
...  
Keyword(s):  
Flexible Electronics ◽  
Somatosensory System ◽  
Silica Nanoparticle ◽  
Polypyrrole Nanowires ◽  
Hybrid Silica ◽  
Multiple Dimensions ◽  
Substantial Interest ◽  
And Personalized Medicine ◽  
Modified Polyacrylamide ◽  
Excellent Reproducibility

Skin-mountable microelectronics are garnering substantial interest for various promising applications including human-machine interfaces, biointegrated devices, and personalized medicine. However, it remains a critical challenge to develop e-skins to mimic the human somatosensory system in full working range. Here, we present a multifunctional e-skin system with a heterostructured configuration that couples vinyl-hybrid-silica nanoparticle (VSNP)–modified polyacrylamide (PAM) hydrogel with two-dimensional (2D) MXene through nano-bridging layers of polypyrrole nanowires (PpyNWs) at the interfaces, featuring high toughness and low hysteresis, in tandem with controlled crack generation and distribution. The multidimensional configurations endow the e-skin with an extraordinary working range (2800%), ultrafast responsiveness (90 ms) and resilience (240 ms), good linearity (800%), tunable sensing mechanisms, and excellent reproducibility. In parallel, this e-skin platform is capable of detecting, quantifying, and remotely monitoring stretching motions in multiple dimensions, tactile pressure, proximity sensing, and variations in temperature and light, establishing a promising platform for next-generation smart flexible electronics.

scholarly journals Template-Free Synthesis of Hybrid Silica Nanoparticle With Functionalized Mesostructure for Efficient Methylene Blue Removal

2021 ◽  
Author(s):  
Dambarudhar Parida ◽  
Khalifah A. Salmeia ◽  
Amin Sadeghpour ◽  
Shanyu Zhao ◽  
Anjani K. Maurya ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Silica Nanoparticle ◽  
Hybrid Silica ◽  
Methylene Blue Removal ◽  
Template Free

scholarly journals Template-free synthesis of hybrid silica nanoparticle with functionalized mesostructure for efficient methylene blue removal

2021 ◽  
Vol 201 ◽  
pp. 109494
Author(s):  
Dambarudhar Parida ◽  
Khalifah A. Salmeia ◽  
Amin Sadeghpour ◽  
Shanyu Zhao ◽  
Anjani K. Maurya ◽  
...  
Keyword(s):  
Methylene Blue ◽  
Silica Nanoparticle ◽  
Hybrid Silica ◽  
Methylene Blue Removal ◽  
Template Free

Quantitative surface damage studies by H.R.E.M.

1989 ◽  
Vol 47 ◽  
pp. 632-633
Author(s):  
S. R. Singh ◽  
H. J. Fan ◽  
L. D. Marks
Keyword(s):  
Solar Wind ◽  
Quantitative Analysis ◽  
Surface Science ◽  
Surface Damage ◽  
Space Environment ◽  
Oxygen Desorption ◽  
The Past ◽  
Diffusion Controlled ◽  
Original Observation ◽  
Substantial Interest

Since the original observation that the surfaces of materials undergo radiation damage in the electron microscope similar to that observed by more conventional surface science techniques there has been substantial interest in understanding these phenomena in more detail; for a review see. For instance, surface damage in a microscope mimics damage in the space environment due to the solar wind and electron beam lithographic operations.However, purely qualitative experiments that have been done in the past are inadequate. In addition, many experiments performed in conventional microscopes may be inaccurate. What is needed is careful quantitative analysis including comparisons of the behavior in UHV versus that in a conventional microscope. In this paper we will present results of quantitative analysis which clearly demonstrate that the phenomena of importance are diffusion controlled; more detailed presentations of the data have been published elsewhere.As an illustration of the results, Figure 1 shows a plot of the shrinkage of a single, roughly spherical particle of WO3 versus time (dose) driven by oxygen desorption from the surface.

Multiple dimensions of acculturation and the victimization of Latino adolescents.

2020 ◽  
Author(s):  
Chiara Sabina ◽  
Carlos A. Cuevas ◽  
Lavina Y. Ho
Keyword(s):  
Latino Adolescents ◽  
Multiple Dimensions

The Multiple Dimensions of Child Abuse and Neglect: New Insights into an Old Problem

2002 ◽  
Author(s):  
Rosemary Chalk ◽  
Alison Gibbons ◽  
Harriet J. Scarupa
Keyword(s):  
Child Abuse ◽  
Child Abuse And Neglect ◽  
Multiple Dimensions ◽  
Abuse And Neglect

(De)constructing leaders: Stereotype threat negatively impacts women on multiple dimensions

2014 ◽  
Author(s):  
Samantha H. Snyder ◽  
Ashley Batts Allen
Keyword(s):  
Stereotype Threat ◽  
Multiple Dimensions

Relationships between temperature and Pacific hake distribution vary across latitude and life-history stage

2020 ◽  
Vol 639 ◽  
pp. 185-197 ◽  
Author(s):  
MJ Malick ◽  
ME Hunsicker ◽  
MA Haltuch ◽  
SL Parker-Stetter ◽  
AM Berger ◽  
...  
Keyword(s):  
Life History ◽  
Environmental Effects ◽  
Environmental Conditions ◽  
Vancouver Island ◽  
Additive Models ◽  
Life History Stage ◽  
Fish Stocks ◽  
Merluccius Productus ◽  
Multiple Dimensions ◽  
Effects Of Temperature

Environmental conditions can have spatially complex effects on the dynamics of marine fish stocks that change across life-history stages. Yet the potential for non-stationary environmental effects across multiple dimensions, e.g. space and ontogeny, are rarely considered. In this study, we examined the evidence for spatial and ontogenetic non-stationary temperature effects on Pacific hake Merluccius productus biomass along the west coast of North America. Specifically, we used Bayesian additive models to estimate the effects of temperature on Pacific hake biomass distribution and whether the effects change across space or life-history stage. We found latitudinal differences in the effects of temperature on mature Pacific hake distribution (i.e. age 3 and older); warmer than average subsurface temperatures were associated with higher biomass north of Vancouver Island, but lower biomass offshore of Washington and southern Vancouver Island. In contrast, immature Pacific hake distribution (i.e. age 2) was better explained by a nonlinear temperature effect; cooler than average temperatures were associated with higher biomass coastwide. Together, our results suggest that Pacific hake distribution is driven by interactions between age composition and environmental conditions and highlight the importance of accounting for varying environmental effects across multiple dimensions.

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