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J Colloid Interface Sci 2022 Apr 30;622:780-788. Epub 2022 Apr 30.

State Key Laboratory of Coordination Chemistry, Coordination Chemistry Institute, Collaborative Innovation Center of Advanced Microstructures, School of Chemistry and Chemical Engineering, Nanjing University, Nanjing 210023, PR China. Electronic address:

The design and synthesis of hollow-nanostructured transition metal oxide-based anodes is of great importance for long-term operation of lithium ion batteries (LIBs). Herein, a special hollow bowl-like α-FeO nanostructure is controllably synthesized through a facile hydrothermal technique and exhibits great electrochemical lithium storage performance when used as LIBs anode. Under a facile hydrothermal condition, α-FeO nanostructures evolve from solid pie-like structure to hollow bowl-like structure and finally α-FeO nanorings through the regulation of HPO derived from ionized NaPO·12HO and Ostwald ripening process. Read More

Biosens Bioelectron 2022 Aug 5;209:114253. Epub 2022 Apr 5.

School of Chemistry & Materials Science, Jiangsu Normal University, Xuzhou, 221116, China. Electronic address:

Peroxidase-like nanozymes have led to important progress in biosensing, but most of nanozyme sensing systems are currently established by a single-signal output mode, which is susceptible to environmental and operational factors. Thus construction of a dual-signal output nanozyme sensing system is essential for obtaining reliable and robust performance. In this study, a novel peroxidase mimicking nanozyme was developed by decorating magnetic ring-like FeO with gold nanoparticles (R-FeO/Au) for the colorimetric and surface-enhanced Raman scattering (SERS) dual-mode detection of biomolecules in human serum. Read More

Langmuir 2022 Mar 17;38(12):3896-3906. Epub 2022 Mar 17.

Department of Chemistry, Rice University, 6100 Main Street, Houston, Texas 77005, United States.

This manuscript describes a universal method for the spontaneous self-assembly of nanostructures ranging from 2-4 nm spherical particles to ∼440 nm long anisotropic nanorods into ring-like superstructures. The nanostructures composed of Au, Pt, and Pd as surface materials were synthesized in an aqueous cetyltrimethyl ammonium bromide (CTAB) solution. The ligand exchange technique with 4-mercaptophenol was applied to replace CTAB from the surface of nanostructures with a functional thiol. Read More

ACS Biomater Sci Eng 2022 02 26;8(2):694-707. Epub 2022 Jan 26.

Chemistry Department, Université du Québec à Montréal, C.P. 8888, Succursale Centre-Ville, Montreal H3C 3P8, Canada.

Proteinaceous nanoparticles represent attractive antigen carriers for vaccination as their size and repetitive antigen displays that mimic most viral particles enable efficient immune processing. However, these nanocarriers are often unable to stimulate efficiently the innate immune system, requiring coadministration with adjuvants to promote long-lasting protective immunity. The protein flagellin, which constitutes the primary constituent of the bacterial flagellum, has been widely evaluated as an antigen carrier due to its intrinsic adjuvant properties involving activation of the innate immune receptor Toll-like receptor 5 (TLR5). Read More

J Colloid Interface Sci 2022 May 15;613:709-719. Epub 2022 Jan 15.

National Synchrotron Radiation Laboratory, Anhui Provincial Engineering Laboratory of Advanced Functional Polymer Film, CAS Key Laboratory of Soft Matter Chemistry, University of Science and Technology of China, Hefei 230026, China. Electronic address:

The evaporation of a colloidal droplet on a solid surface produces a ring-like structure at the pinned contact line due to induced capillary flow, also known as the coffee-ring effect (CRE). However, the addition of certain additives can significantly reduce CRE, whose physical origin remains in debate. In this study, the time-resolved low field (LF)-NMR technique highlights the effect of different water fractions in colloidal droplets on the ultimate distribution of silica nanoparticles during evaporation. Read More