Quantum dot assisted precise and sensitive fluorescence-based formaldehyde detection in food samples.

Formaldehyde has an extremely reactive carbonyl group, commonly used as an antibacterial agent to sterilize and prevent food to spoil. This article describes an efficient and rapid detection method of formaldehyde from an aqueous solution by synthesizing 3-Aminopropyltriethoxysilane (APTES) quantum dots (Nano A) which react with formaldehyde to generate a Schiff base reaction. The photoinduced electron transfer produced by the quantum dots themselves results in fluorescence quenching to detect formaldehyde.

Detecting the release of plastic particles in packaged drinking water under simulated light irradiation using surface-enhanced Raman spectroscopy.

Plastic cups and bottles used for mineral water packaging may release plastic particles during continuous exposure to heat, light, or unfavorable chemical environments during transportation and storage. Surface-enhanced Raman spectroscopy (SERS) can be used to detect and analyze these plastic particles in a highly sensitive and quantitative manner. In this study, we used copper oxide/silver nanoparticles (CuO/Ag NPs) as the SERS substrate to monitor the release of plastic particles in packaged mineral water samples under irradiation as a function of exposure time.

Engineered mesoporous biochar derived from rice husk for efficient removal of malachite green from wastewaters.

Extremely soluble Malachite green (MG) acts as potential carcinogen for aquatic life in polluted aqueous environments. Current study aims to modify rice husk derived biochar to improve its removal efficiency for MG from MG-containing wastewaters. The hydrothermal alkali activation was effective for preparing modified biochar (RHMB) from native biochar (RHB) derived from rice husk.

CaO recovered from eggshell waste as a potential adsorbent for greenhouse gas CO.

The growing number of industrial carbon emissions have resulted in a significant increase in the greenhouse gas carbon dioxide (CO), which, in turn, will have a major impact on climate change. Therefore, the reduction, storage, and reuse of CO is an important concern in modern society. Calcium oxide (CaO) is known to be an excellent adsorbent of CO in a high-temperature environment.

Utilizing Edible Agar as a Carrier for Dual Functional Doxorubicin-FeO Nanotherapy Drugs.

The purpose of this study was to use agar as a multifunctional encapsulating material to allow drug and ferromagnetism to be jointly delivered in one nanoparticle. We successfully encapsulated both FeO and doxorubicin (DOX) with agar as the drug carrier to obtain DOX-FeO@agar. The iron oxide nanoparticles encapsulated in the carrier maintained good saturation of magnetization (41.