Review Articles in 2022

The potential of transition metal-based cocatalysts for PEC water splitting has been outlined with a focus on the reported literature, ongoing research, and future perspectives.

Palladium (Pd)-nonmetal nanostructures, as a special class of Pd-based alloys, have exhibited diversified advantages for fuel cell reactions. This minireview summarized the most recent progress in the synthesis of Pd-nonmetal nanostructures and their applications in fuel cells. Especially, this review proposed the promising strategies for enhancing the performance of Pd-nonmetal nanostructures in fuel cell applications. It is expected that this review will generate more research interest in the development of more advanced Pd-nonmetal nanocatalysts.

Cell-derived exosomes have been rapidly developed and applied in various biomedical fields over the last decade, holding great potentials in tissue repair such as chronic wounds due to their excellent biocompatibility and immune stability. Recent advances in regulating the features and biological functions of cell-derived exosomes by biochemical and biophysical cues in the cell microenvironment are summarized. Then microenvironmental cue-regulated exosomes as therapeutic strategies to improve chronic wound healing are discussed, and hydrogel-based exosome delivery systems used in the treatment of chronic wounds are highlighted. Finally, ongoing challenges and future opportunities are proposed.

Summary of the main influencing factors between autophagy and disease.

In this paper, we review a large number of recent studies on the synthesis of nanoparticles assisted by machine learning. Moreover, we describe the working steps of machine learning, the main algorithms, and the main ways to obtain datasets. Finally, we discuss the current problems of this research and provide an outlook.

This review focuses on the electron-phonon interactions in lead halide perovskite semiconductors, which dominate their optical and electronic properties by forming polarons. We describe the uniqueness of perovskite semiconductors in terms of long-range and short-range electron-phonon interactions. The formation of polarons profoundly affects the carrier effective mass, mobility, and various optoelectronic properties. These topics are explained with recent experimental data.

This review highlights the recent advances in fluorescence microscopic visualization of synthetic hydrogels, bio-macromolecular hydrogels, organohydrogels, and supramolecular hydrogels. Topics related to the structural changes of hydrogels, hydrogel mechanics, and super-resolution imaging of hydrogels based on fluorescence microscopy are introduced. The design concepts, imaging mechanisms, and potential applications of the novel fluorescence visualization strategies are discussed in detail. Finally, our opinions on the major challenges of current research, possible solutions, and future directions are shared.

This review focuses on the most recent advancements of hydrogel-based therapies with therapeutic drugs or stem cells on their applications to the treatment of CNS disorders, including brain injury, spinal cord injury, neurodegenerative diseases, and brain tumors.

This review describes an overview of the strategies used to prepare self-healing and self-restoring materials utilizing reversible and movable crosslinks. Reversible crosslinks, consisting of noncovalent bonds, can reversibly undergo repeated cleavage and reformation. Therefore, self-healing can be achieved by effectively regenerating reversible crosslinks between polymeric chains. Movable crosslinks consist of polymer chains that penetrate macrocyclic units and have self-restoring properties due to their sliding motion along the polymeric chains. Self-restoring materials can regain their original shape and mechanical properties after a cycle of loading and unloading external stress.

Various changes occur in the myocardial infarcted microenvironment. An in-depth understanding of these changes has enabled the development of the functional hydrogels for cardiac repair. This article introduces recent advance in functional hydrogels for the treatment of myocardial infarction, including MMP-responsive hydrogels, ROS-scavenging hydrogels, immunomodulatory hydrogels, conductive hydrogels, vascularized hydrogels, and 3D printed hydrogels. Future perspective is also presented.