Radioactive iodine poses a significant risk to human health, particularly with regard to reproductive and metabolic functions. Designing and developing highly efficient adsorbent materials for radioactive substances remain a significant challenge. This study aimed to address this issue by the fabricating polymeric beads containing covalent organic polymer (COP) as an effective method for removing iodine vapor. To achieve this, a COP was first synthesized via the Friedel-Crafts reaction catalyzed by anhydrous aluminum chloride. Then, COP-loaded polysulfone (PSf) (COP@PSf) and PSf beads were prepared using a phase separation method. The beads produced in this research have exhibited remarkable proficiency in adsorbing iodine vapor, showing an adsorption capacity of up to 216 wt % within just 420 min, which is higher than that of most other similar beads reported in the literature.
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http://dx.doi.org/10.1021/acsomega.3c09869 | DOI Listing |
Small Methods
December 2024
Department of Chemistry, McGill University, 801 Sherbrooke St. West, Montreal, QC, H3A 0B8, Canada.
Covalently branched DNA molecules are hybrid structures where a small molecule core is covalently linked to different DNA strands. They merge the programmability of DNA nanotechnology with synthetic molecules' functionality, offering enhanced stability over their non-covalent counterparts like double-crossover tiles. They enable the efficient assembly of stable DNA nanostructures with new geometries and functionalities.
View Article and Find Full Text PDFInt J Biol Macromol
December 2024
School of Chemical Engineering and Pharmacy, Wuhan Institute of Technology, LiuFang Campus, No.206, Guanggu 1st road, Donghu New & High Technology Development Zone, Wuhan 430205, Hubei Province, PR China. Electronic address:
In this study, a novel cellulose-derived support of amino-functionalized cellulose beads (ACBs) for laccase immobilization was successfully developed using cellulose beads (CBs) and polyethyleneimine by glutaraldehyde crosslinking reaction. The covalent immobilization of laccase on ACBs was achieved via a Schiff base reaction. The obtained enzyme catalysts (Lac-ACBs) were applied for simultaneous adsorption and enzymatic conversion of tetracycline (TC) from water.
View Article and Find Full Text PDFBiosens Bioelectron
February 2025
Department of Mechanical Engineering, Iowa State University, Ames, IA 50011, USA. Electronic address:
Food Chem
February 2025
Chongqing Research Center for Pharmaceutical Engineering, College of Pharmacy, Chongqing Medical University, Chongqing 400016, PR China. Electronic address:
A novel aptasensor for the detection of kanamycin (KNM) was developed based on dual signal amplification through nanomaterials and DNA rolling machines. Firstly, a composite consisting of the covalent organic framework (COF), ketjen black (KB) and toluidine blue (Tb), was synthesized for signal generation. Tb molecules were loaded into the composite and combined with AuNPs to serve as tracer label.
View Article and Find Full Text PDFInt J Biol Macromol
December 2024
Departamento de Biocatálisis, ICP-CSIC, C/Marie Curie 2, Campus UAM-CSIC, Cantoblanco, 28049 Madrid. Spain. Electronic address:
The focus of the present work is to find the optimal conditions for the activation of agarose beads with divinyl sulfone (DVS). The reactivity of the vinyl sulfone groups in the support was checked by the support capacity to react with ethylamine; via elemental analysis. In addition, trypsin was used as a model enzyme to test the immobilization and stabilization capabilities of the different supports.
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