Bacteria-Adsorbed Palygorskite Stabilizes the Quaternary Phosphonium Salt with Specific-Targeting Capability, Long-Term Antibacterial Activity, and Lower Cytotoxicity

Langmuir ◽  
2013 ◽  
Vol 29 (17) ◽  
pp. 5279-5285 ◽  
Author(s):  
Xiang Cai ◽  
Jinglin Zhang ◽  
Yu Ouyang ◽  
Dong Ma ◽  
Shaozao Tan ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Phosphonium Salt ◽  
Specific Targeting ◽  
Quaternary Phosphonium Salt

Enhanced antibacterial activity of magnetic biochar conjugated quaternary phosphonium salt

Carbon ◽  
2020 ◽  
Vol 163 ◽  
pp. 360-369 ◽  
Author(s):  
Yuhao Fu ◽  
Fang Wang ◽  
Hongjie Sheng ◽  
Min Xu ◽  
Ying Liang ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Phosphonium Salt ◽  
Magnetic Biochar ◽  
Quaternary Phosphonium Salt

scholarly journals Design of bifunctional quaternary phosphonium salt catalysts for CO2 fixation reaction with epoxides under mild conditions

2016 ◽  
Vol 18 (17) ◽  
pp. 4611-4615 ◽  
Author(s):  
Shiyao Liu ◽  
Naoki Suematsu ◽  
Keiji Maruoka ◽  
Seiji Shirakawa
Keyword(s):  
Co2 Fixation ◽  
Phosphonium Salt ◽  
Cyclic Carbonates ◽  
Efficient Synthesis ◽  
Reaction Conditions ◽  
Mild Conditions ◽  
Phosphonium Iodide ◽  
Fixation Reaction ◽  
Quaternary Phosphonium Salt

An efficient synthesis of cyclic carbonates from epoxides and CO2 under mild reaction conditions was achieved via the use of a designed bifunctional quaternary phosphonium iodide catalyst.

Evaluation of quaternary phosphonium salt as the collector in bauxite reverse flotation

2017 ◽  
Vol 5 (5) ◽  
pp. 4494-4496 ◽  
Author(s):  
Jihua Zhai ◽  
Pan Chen ◽  
Wei Sun ◽  
Yuehua Hu ◽  
Tong Yue ◽  
...  
Keyword(s):  
Phosphonium Salt ◽  
Reverse Flotation ◽  
Quaternary Phosphonium Salt

In Situ Preparation of Ag-Deposited Mesoporous Silica Hollow Spheres with Long-Term Antibacterial Activity

2014 ◽  
Vol 8 (3) ◽  
pp. 230-234 ◽  
Author(s):  
Peng Xu ◽  
Yixi Chen ◽  
Rui Zhang ◽  
Jing Yang ◽  
Xiaoyong Cao ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Mesoporous Silica ◽  
Hollow Spheres

scholarly journals Iodine-Loaded Calcium Titanate for Bone Repair with Sustainable Antibacterial Activity Prepared by Solution and Heat Treatment

Nanomaterials ◽  
2021 ◽  
Vol 11 (9) ◽  
pp. 2199
Author(s):  
Seiji Yamaguchi ◽  
Phuc Thi Minh Le ◽  
Seine A. Shintani ◽  
Hiroaki Takadama ◽  
Morihiro Ito ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Antibacterial Activity ◽  
Bone Repair ◽  
Reduction Rate ◽  
Calcium Titanate ◽  
Apatite Formation ◽  
Oh Groups ◽  
Long Term Stability ◽  
Combined Solution

In the orthopedic and dental fields, simultaneously conferring titanium (Ti) and its alloy implants with antibacterial and bone-bonding capabilities is an outstanding challenge. In the present study, we developed a novel combined solution and heat treatment that controllably incorporates 0.7% to 10.5% of iodine into Ti and its alloys by ion exchange with calcium ions in a bioactive calcium titanate. The treated metals formed iodine-containing calcium-deficient calcium titanate with abundant Ti-OH groups on their surfaces. High-resolution XPS analysis revealed that the incorporated iodine ions were mainly positively charged. The surface treatment also induced a shift in the isoelectric point toward a higher pH, which indicated a prevalence of basic surface functionalities. The Ti loaded with 8.6% iodine slowly released 5.6 ppm of iodine over 90 days and exhibited strong antibacterial activity (reduction rate >99%) against methicillin-resistant Staphylococcus aureus (MRSA), S. aureus, Escherichia coli, and S. epidermidis. A long-term stability test of the antibacterial activity on MRSA showed that the treated Ti maintained a >99% reduction until 3 months, and then it gradually decreased after 6 months (to a 97.3% reduction). There was no cytotoxicity in MC3T3-E1 or L929 cells, whereas apatite formed on the treated metal in a simulated body fluid within 3 days. It is expected that the iodine-carrying Ti and its alloys will be particularly useful for orthopedic and dental implants since they reliably bond to bone and prevent infection owing to their apatite formation, cytocompatibility, and sustainable antibacterial activity.

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