Additional file 1 of Alterations in gut and genital microbiota associated with gynecological diseases: a systematic review and meta-analysis

Supplementary Material

Fabrication of Binary and Ternary Hybrid Particles Based on Colloidal Lithography

We describe a versatile strategy for engineering binary and ternary hybrid particles (HPs) through a combination of etching and deposition processes based on colloidal lithography (CL). Non-close-packed (ncp) polymer colloidal crystals were used as both original seed microparticles and templates for generating hybrid patches. Utilizing chemical or plasmonic etching procedures, the hybrid patches were generated underneath the colloidal template and were successfully attached on the microspheres through thermal treatment. The hybrid particles composing metals and polymers were tunable in size, composition, and morphology. This method provides a versatile and modular tool to fabricate similar hybrid microparticles and/or nanoparticles that, integrated into predesigned materials, promise applications in photonic and magnetic devices

Dynamic response feature of electromechanical coupled drive subsystem in a locomotive excited by wheel flat

As a form of wheel tread failure, a wheel flat becomes increasingly severe in a large axle-load heavy-haul locomotive due to emergency braking or skidding idling. The presence of a wheel flat will cause additional impact forces at the wheel-rail interface which is likely to cause a more rapid fatigue failure of locomotive and infrastructure components. Therefore, it is necessary to determine the dynamics effect of the wheel flat on the railway vehicle system so as to allow efficient monitoring and maintenance. In this paper, a co-simulation model which combines the electrical drive subsystem with a locomotive-track coupled dynamics model considering the complete mechanical transmission subsystem has been presented to analyze the dynamic responses of the locomotive under the effect of wheel flats of different sizes. The results show that the existence of a wheel flat will exacerbate the wheel-rail impact and the vibrations of the components in the locomotive. In addition, the frequency associated with the wheel flat and the gear transmission can be extracted from the frequency spectrum of the current signals in a traction motor, which makes it possible to identify the existence of wheel flats or other rotary component defects in time through analysis of the electrical signals without installing extra sensors. © 2021 Elsevier Lt

AIE-Active Polyamide Containing Diphenylamine-TPE Moiety with Superior Electrofluorochromic Performance

Electrofluorochromism has attracted great attention due to the intelligence optoelectronic and sensing applications. The intrinsically switchable fluorophores with high solid-state fluorescence are regarded as key for ideal electrofluorochromic materials. Here, we reported an AIE-active polyamide with diphenylamine and tetraphenylethylene units, showing high fluorescence quantum yield up to 69.1% for the solid polymer film and stable electrochemical cycling stability. The polyamide exhibited reversible color and emission switching even in hundreds of cycles, and the fluorescence on/off contrast ratio was determined up to 417, which is the highest value to our knowledge. Furthermore, as the response time is vital for the real-life applications, to speed up the response of electrofluorochromism, a porous polymer film was readily prepared through a facile method, notably exhibiting high fluorescence contrast, long-term stability and obviously improved response, due to the sharply increased surface area. Therefore, the AIE-functionalization combining the porous structure strategy will synergistically and dramatically improve the electrofluorochromic performance, which will also promote their practical applications in the near future

Broad-Range Electrically Tunable Plasmonic Resonances of a Multilayer Coaxial Nanohole Array with an Electroactive Polymer Wrapper

Plasmonic assemblies featuring high sensitivity that can be readily shifted by external fields are the key for sensitive and versatile sensing devices. In this paper, a novel fast-responsive plasmonic nanocomposite composed of a multilayer nanohole array and a responsive electrochromic polymer is proposed with the plasmonic mode appearance vigorously cycled upon orthogonal electrical stimuli. In this nanocomposite, the coaxially stacked plasmonic nanohole arrays can induce multiple intense Fano resonances, which result from the crosstalk between a broad surface plasmon resonance (SPR) and the designed discrete transmission peaks with ultrahigh sensitivity; the polymer wrapper could provide the sensitive nanohole array with real-time-varied surroundings of refractive indices upon electrical stimuli. Therefore, a pronounced pure electroplasmonic shift up to 72 nm is obtained, which is the largest pure electrotuning SPR range to our knowledge. The stacked nanohole arrays here are also directly used as a working electrode, and they ensure sufficient contact between the working electrode (plasmonic structure) and the electroactive polymer, thus providing considerably improved response speed (within 1 s) for real-time sensing and switching

Broad-Range Electrically Tunable Plasmonic Resonances of a Multilayer Coaxial Nanohole Array with an Electroactive Polymer Wrapper

Plasmonic assemblies featuring high sensitivity that can be readily shifted by external fields are the key for sensitive and versatile sensing devices. In this paper, a novel fast-responsive plasmonic nanocomposite composed of a multilayer nanohole array and a responsive electrochromic polymer is proposed with the plasmonic mode appearance vigorously cycled upon orthogonal electrical stimuli. In this nanocomposite, the coaxially stacked plasmonic nanohole arrays can induce multiple intense Fano resonances, which result from the crosstalk between a broad surface plasmon resonance (SPR) and the designed discrete transmission peaks with ultrahigh sensitivity; the polymer wrapper could provide the sensitive nanohole array with real-time-varied surroundings of refractive indices upon electrical stimuli. Therefore, a pronounced pure electroplasmonic shift up to 72 nm is obtained, which is the largest pure electrotuning SPR range to our knowledge. The stacked nanohole arrays here are also directly used as a working electrode, and they ensure sufficient contact between the working electrode (plasmonic structure) and the electroactive polymer, thus providing considerably improved response speed (within 1 s) for real-time sensing and switching