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Fluorescent and magnetic bifunctional nanomaterials have found several applications in life sciences, including biological labeling, magnetic resonance imaging, gene therapy, and nanodrug delivery. In this work, we develop a facile route that combines the assisted-template approach with a homogeneous co-precipitation method and a high-temperature calcination process, allowing the successful preparation of fluorescent–magnetic α-Fe2O3@Y2O3:Eu3+ bifunctional hollow microspheres (BHMs) with mesoporous shells and hollow-core structures. Scanning electron microscopy, transmission electron microscopy, emission spectroscopy, magnetic testing, and N2 adsorption techniques were employed to characterize the fluorescent–magnetic α-Fe2O3@Y2O3:Eu3+ BHMs. The results showed that the resulting BHMs exhibited uniformly spherical morphologies with mesoporous shells and hollow-core structures and were characterized by good dispersibility, photofluorescence, and magnetic responsiveness in solution. Ibuprofen loading and drug-release simulation experiments showed that the BHMs exhibited a high drug-loading capacity (126 mg/g) and a sustained drug-release profile, which would allow them to be employed as nanodrug carriers for the therapeutic treatment of malignant tumors.

Highly conductive and elastic three-dimensional (3D) porous carbon materials are ideal platforms to fabricate electrodes for high-performance compressible supercapacitors. Herein, a robust, highly conductive, and elastic carbon foam (CF) hybrid material is reported, which is fabricated by integrating cellulose nanofiber/multiwalled carbon nanotube (CNF/ MWCNT) aerogel sheets with a melamine sponge (MS), followed by carbonization. The carbonized CNF/MWCNT aerogel sheets contribute to the high conductivity and specific surface area of the CF, and the 3D network-like skeleton derived from the carbonization of the MS enhances the elasticity and stability of the CF. More importantly, the CF possesses good scalability, allowing the introduction of electroactive materials such as polypyrrole (PPy) and Fe 3 O 4 to fabricate high-performance compressible PPy−CF and Fe 3 O 4 −CF electrodes. Moreover, an assembled PPy−CF//Fe 3 O 4 −CF device shows reversible charging−discharging at a voltage of 1.6 V and demonstrates a high specific capacitance (172.5 F/g) and an outstanding energy density (59.9 W h/kg). The device exhibits capacitance retention rates reaching 98.3% and stable energy storage characteristics even under different degrees of compressive deformation. This study offers a scalable strategy for fabricating high-performance compressible supercapacitors, thereby providing a new means of satisfying the energy storage needs of portable electronic devices that are prone to deformation.

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A new version of the transfer matrix method for multibody system, where the translational and angular accelerations as well as the internal forces and torques are taken as new state variables, is used to study the dynamics of plate with large motion and small deformation. Modal synthesis method is used to describe the deformation of the plate. The transfer matrix of plate with large motion and small deformation is derived. A continuously accelerating rotating plate subjected to constant torque and a rigid-flexible coupling pendulum containing a plate with large motion and small deformation are studied respectively, their overall transfer equations are established. Dynamic simulation of two examples is carried out and the result is compared with other methods.