Adsorption Behavior of Co, Ni, Sr, Cs, and I by Corrosion Products α-FeOOH from Typical Metal Tanks.

Throughout the nuclear power production process, the disposal of radioactive waste has consistently raised concerns about environmental safety. When the metal tanks used for waste disposal are corroded, radionuclides seep into the groundwater environment and eventually into the biosphere, causing significant damage to the environment. Hence, investigating the adsorption behavior of radionuclides on the corrosion products of metal tanks used for waste disposal is an essential component of safety and evaluation protocols at disposal sites.

Carbon nanoparticles beneficial for prophylactic central compartment lymph node dissection in cN0 papillary thyroid carcinoma.

Objective: This study explored prophylactic central compartment lymph node dissection (pCCLND) for patients with cN0 papillary thyroid carcinoma (PTC) and the effect of carbon nanoparticles (CNP) on surgical outcomes.

Methods: This retrospective study reviewed PTC cases treated at our tertiary medical institution between January 2019 and December 2022. Only patients with indications for total thyroidectomy and cN0 disease were included.

[Observation of bacteria photodynamic inactivation induced by hematoporphvrin monomethyl ether by atomic force microscope].

Objective: To study the photodynamic inactivation of Gram-positive bacteria Staphylococcus aureus and Gram-negative bacteria Escherichia coli by hematoporyrin monomethyl ether.

Methods: Bacteria incubated with different concentrations of hematoporyrin monomethyl ether (HMME) and then irradiated with visual light for 30minutes, bacteria inactivation efficiency was detected with the reduction of colony unit, and morphological changes were observed with atomic force microscope (AFM).

Results: Results indicated that 90% of Staphylococcus aureus was photoinactivated by illumination with visible light for 30 min (power density 200 mW/cm2) in the presence of 50 microg/mL HMME.