Dopamine-mediated Immobilization of Antimicrobial Peptides on Stainless Steel for Marine Antifouling Applications.

Biofouling due to marine microorganism adhesion poses significant challenges for marine vessels, necessitating innovative antifouling solutions. This study aimed to investigate the antifouling performance of an antimicrobial peptides (AMPs) immobilized on dopamine-modified stainless steel (SS) surfaces, as a novel approach for antifouling applications. Herein, dopamine was utilized to form a modification layer on SS, subsequently immersed in AMPs solution to create SS-DA-A samples.

Antifouling Mussel-Inspired Hydrogel with Furanone-Loaded ZIF-8 for Quorum Sensing-Mediated Marine Antifouling.

Marine biofouling, the process of marine microorganisms, algae, and invertebrates attaching to and forming biofilms on ship hulls, underwater infrastructure, and marine equipment in ocean environments, severely impacts shipping and underwater operations by increasing fuel consumption, maintenance costs, and corrosion risks, and by threatening marine ecosystem stability via invasive species transport. This study reports the development of a hydrogel-metal-organic framework (MOF)-quorum sensing inhibitor (QSI) antifouling coating on 304 stainless steel (SS) substrates. Inspired by mussel adhesion, a hydrophilic bionic hydrogel was first constructed via metal ion coordination.

The broadband emission of Cr-doped CaYMgGeO and its applications for NIR detectors.

A phosphor-converted light-emitting diode (pc-LED) is a prime light source in smart broadband near-infrared (NIR) spectroscopy. The performance of NIR pc-LEDs crucially depends on the employed NIR luminescent materials. In this study, we synthesized a novel high-efficiency broadband NIR phosphor, CaYMgGeO:Cr (CYMG:Cr).

Non-contact thermometer behavior of (YIn)O:Yb,Er solid solution.

Oxides are physically and chemically stable. Non-contact thermometer-Yb-Er ions co-doped solid solution (YIn)O, is prepared by the regular solid method. The structural results obtained by XRD indicate that a pure phase solid solution (YIn)O has been obtained.

Improved method for damping coefficient measurement based on spectral analysis of a self-mixing signal.

In this paper, the self-mixing interference subject to weak optical feedback has been used to measure the damping vibration. By analyzing the spectrum of the signal, the damping coefficient can be extracted precisely from the nth-order Bessel functions, which are determined by the dominant harmonic order of the frequency spectrum. Theoretical derivation and signal processing are presented.