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An integrated visual energy system consisting of conjugated polymer electrodes is promising for combining electrochromism with energy storage. In this work, we obtained copolymer bifunctional electrodes poly(3,6-dimethoxythieno[3,2-b]thiophene-co-2,3-dihydrothieno[3,4-b][1,4]dioxin-3-ylmethanol)(P(TT-OMe-co-EDTM)) by one-step electrochemical copolymerization, which exhibits favorable electrochromic and capacitive energy storage properties. Because of the synergistic effect of PTT-OMe and PEDTM, the prepared copolymers show better flexibility. Moreover, the morphology and electrochemical properties of the copolymers could be adjusted by depositing different molar ratios of 3,6-dimethoxythieno[3,2-b]thiophene (TT-OMe) and 2,3-dihydrothieno[3,4-b][1,4] dioxin-3-ylmethanol (EDTM). The P(TT-OMe-co-EDTM) electrodes realized a high specific capacitance (190 F/g at 5 mV/s) and recognizable color conversion. This work provides a novel and simple way to synergistically improve electrochromic and energy storage properties and develop thiophene-based conducting polymers for electrochromic energy storage devices. [ABSTRACT FROM AUTHOR]

Background: Analyzing distance-dependent functional connectivity density (FCD) yields valuable insights into patterns of brain activity. Nevertheless, whether alterations of FCD in non-acute stroke patients are associated with the anatomical distance between brain regions remains unclear. This study aimed to explore the distance-related functional reorganization in non-acute stroke patients following left and right hemisphere subcortical lesions, and its relationship with clinical assessments. Methods: In this study, we used resting-state fMRI to calculate distance-dependent (i.e., short- and long-range) FCD in 25 left subcortical stroke (LSS) patients, 22 right subcortical stroke (RSS) patients, and 39 well-matched healthy controls (HCs). Then, we compared FCD differences among the three groups and assessed the correlation between FCD alterations and paralyzed motor function using linear regression analysis. Results: Our findings demonstrated that the left inferior frontal gyrus displayed distance-independent FCD changes, while the bilateral supplementary motor area, cerebellum, and left middle occipital gyrus exhibited distance-dependent FCD alterations in two patient subgroups compared with HCs. Furthermore, we observed a positive correlation between increased FCD in the bilateral supplementary motor area and the motor function of lower limbs, and a negative correlation between increased FCD in the left inferior frontal gyrus and the motor function of both upper and lower limbs across all stroke patients. These associations were validated by using a longitudinal dataset. Conclusions: The FCD in the cerebral and cerebellar cortices shows distance-related changes in non-acute stroke patients with motor dysfunction, which may serve as potential biomarkers for predicting motor outcomes after stroke. These findings enhance our comprehension of the neurobiological mechanisms driving non-acute stroke. Trial registration: All data used in the present study were obtained from a research trial registered with the ClinicalTrials.gov database (NCT05648552, registered 05 December 2022, starting from 01 January 2022). [ABSTRACT FROM AUTHOR]

Background: It is unclear which cortical regions are specific to or commonly associated with the impairments of the upper/lower limbs and the activities of daily life (ADL) in stroke patients. Purpose: To investigate the relationships between MRI‐assessed surface‐based morphometry (SBM) features and motor function as well as ADL in participants with chronic stroke. Study Type: Prospective. Subjects: Thirty‐five participants with subcortical stroke more than 3 months from the first‐onset (age: 56.44 ± 9.56 years; 32 male). Field Strength/Sequence: T1‐weighted images, 3.0 T, three‐dimensional fast field‐echo sequence. Assessment: FreeSurfer (6.0) was used to parcellate each hemisphere into 34 regions based on the Desikan–Killiany atlas and to extract the surface area, volume, thickness, and curvature. The motor function and ADL were assessed by the Fugl‐Meyer Assessment for the Upper/Lower Extremity (FMA‐UE/FMA‐LE) and the Chinese version of the Modified Barthel Index (MBI‐C), respectively. Statistical Tests: A linear mixed‐effect model was applied to evaluate the relationship between the morphological features and the FMA‐UE, FMA‐LE, and MBI‐C. A false discovery rate corrected P value < 0.05 was considered statistically significant. Results: Correlations between the size of stroke lesion and MRI measurements did not pass the FDR correction (adjusted P > 0.05). SBM features in motor‐related and high‐order cognitive cortical regions showed significant correlations with FMA‐UE and FMA‐LE, respectively. Moreover, the thickness in the prefrontal cortex significantly positively correlated, while the surface area in the right supramarginal gyrus significantly negatively correlated, with both FMA‐UE, FMA‐LE, and MBI‐C. The thickness in the left frontal lobe significantly positively correlated with both FMA‐UE and MBI‐C. Data Conclusion: This study's findings suggest that different hemiparetic motor‐related outcomes in participants with subcortical stroke which suffered a corticospinal tract‐related injury show specific, but also share common, associations with several cortical regions. Evidence Level: 2 Technical Efficacy: Stage 2 [ABSTRACT FROM AUTHOR]

In the research of flexible smart electronics, obtaining particular structure electrodes to provide excellent electrochemical performance remains challenging. Here we report the synthesis and characterization of nanocomposite by a two-step method of polypyrrole (PPy) with Co3O4@SiO2 in the presence of an oxidizing agent. Co3O4@SiO2 was prepared by firing SiO2-coated zeolitic imidazolate framework-67 (ZIF-67/SiO2) in a tubular furnace at a high temperature. Subsequently, PPy was coated and dispersed on Co3O4@SiO2 by chemical methods at room temperature. In addition, we also explored the optimal ratio experiment of Co3O4@SiO2 and PPy. The results show that the specific capacitance of Co3O4@SiO2 and Co3O4@SiO2/PPy (2 mL) is 33.36 A/g and 107.7 A/g, at 0.6 A/g current density, indicating that the addition of PPy greatly improves the electrochemical performance of Co3O4@SiO2. This may be due to synergies between Co3O4@SiO2 and PPy polymers, and the addition of PPy may help Co3O4@SiO2 to construct more ion channels to enhance ion transport. This report will contribute to the development and application of cobalt oxide and silicon-shell electrode materials in the field of energy storage. It is helpful for the development and application of cobalt oxide and silicon-shell structures as electrode materials in the field of energy storage. [ABSTRACT FROM AUTHOR]