scholarly journals A TiO2/C catalyst having biomimetic channels and extremely low Pt loading for formaldehyde oxidation

RSC Advances ◽  
2019 ◽  
Vol 9 (7) ◽  
pp. 3965-3971 ◽  
Author(s):  
Wei Liu ◽  
Yutao Gong ◽  
Xueping Li ◽  
Cai-wu Luo ◽  
Congmin Liu ◽  
...  
Keyword(s):  
Hybrid Material ◽  
Formaldehyde Oxidation ◽  
Low Pt Loading ◽  
Wood Template

This study presents a TiO2/C hybrid material with biomimetic channels fabricated using a wood template.

Synthesis and Biological Evaluation of Amoxicillin Loaded Hybrid Material Composite Spheres Against Methicillin-Resistant Staphylococcus aureus

2020 ◽  
Vol 21 ◽  
Author(s):  
Muhammad Arfat Yameen ◽  
Amir Zeb ◽  
Raza E Mustafa ◽  
Sana Mushtaq ◽  
Nargis Aman ◽  
...  
Keyword(s):  
Mtt Assay ◽  
Hybrid Material ◽  
Ag Nanoparticles ◽  
Hybrid Composite ◽  
Synthesis Method ◽  
Biological Evaluation ◽  
Vitro Assay ◽  
Cytotoxicity Studies ◽  
Material Composite

Background: Incoherent use of antibiotics has led toward resistance in MRSA, which is becoming multidrugresistant with high rate of virulence in the community and hospital settings. Objective: Synergistic anti-MRSA activity was investigated in this study for hybrid material composite spheres of amoxicillin, Ag nanoparticles and chitosan which were prepared by one-step synthesis method and various characterizations were performed. Methods: Antimicrobial-susceptibility assay on MRSA was achieved by disc diffusion and agar dilution techniques while agar well diffusion was used for hybrid composite spheres. The in vitro and cytotoxicity studies was done by skin abrasion mouse model and MTT assay on RD cell respectively. Results: All isolates were resistant with the tested antibiotics except vancomycin. MIC against MRSA showed high resistance with amoxicillin from 4 to 128 mg L-1. The mean diameter of chitosan spheres and Ag nanoparticles was 02 mm and 277 nm respectively. Morphology of spheres was uneven, varied, porous and irregular in SEM and Ag nanoparticles presence and formation was also seen in micrograph. No substantial interface among drug, nanoparticles and polymer was found in XRD and IR showed characteristic peaks of all compound in the formulation. The in vitro assay showed augmented anti-MRSA activity with amoxicillin loaded hybrid composite spheres (22-29 mm). A significant reduction in microbial burden (~6.5 log10 CFU ml-1) was seen in vivo with loaded hybrid composite spheres formulation. The MTT assay indicated no potential cytotoxicity with hybrid composite spheres. Conclusion: Synergistic effect, amoxicillin, new hybrid formulation, anti-MRSA activity, composite spheres. nanoparticles.

Optical Limiting of a Covalently Bonded Gold Nanoparticle/Polylysine Hybrid Material

2005 ◽  
Vol 109 (44) ◽  
pp. 20854-20857 ◽  
Author(s):  
Wenfang Sun ◽  
Qiu Dai ◽  
James G. Worden ◽  
Qun Huo
Keyword(s):  
Gold Nanoparticle ◽  
Hybrid Material ◽  
Optical Limiting ◽  
Covalently Bonded

scholarly journals Non-OPC Binder Based on a Hybrid Material Concept for Sustainable Road Base Construction towards a Low-carbon Society

2021 ◽  
Author(s):  
Thanon Bualuang ◽  
Peerapong Jitsangiam ◽  
Teewara Suwan ◽  
Ubonlluk Rattanasak ◽  
Napat Jakrawatana ◽  
...  
Keyword(s):  
Hybrid Material ◽  
Low Carbon ◽  
Road Base ◽  
Material Concept

scholarly journals Preparation and Gas Sensing Properties of PANI/SnO2 Hybrid Material

Polymers ◽  
2021 ◽  
Vol 13 (9) ◽  
pp. 1360
Author(s):  
Qiaohua Feng ◽  
Huanhuan Zhang ◽  
Yunbo Shi ◽  
Xiaoyu Yu ◽  
Guangdong Lan
Keyword(s):  
Hybrid Material ◽  
Room Temperature ◽  
Tin Dioxide ◽  
Gas Adsorption ◽  
Gas Sensing ◽  
Oxidative Polymerization ◽  
Environmental Pollutants ◽  
Decomposition Temperature ◽  
Benzene Vapor ◽  
Thermo Gravimetric Analyzer

A sensor operating at room temperature has low power consumption and is beneficial for the detection of environmental pollutants such as ammonia and benzene vapor. In this study, polyaniline (PANI) is made from aniline under acidic conditions by chemical oxidative polymerization and doped with tin dioxide (SnO2) at a specific percentage. The PANI/SnO2 hybrid material obtained is then ground at room temperature. The results of scanning electron microscopy show that the prepared powder comprises nanoscale particles and has good dispersibility, which is conducive to gas adsorption. The thermal decomposition temperature of the powder and its stability are measured using a differential thermo gravimetric analyzer. At 20 °C, the ammonia gas and benzene vapor gas sensing of the PANI/SnO2 hybrid material was tested at concentrations of between 1 and 7 ppm of ammonia and between 0.4 and 90 ppm of benzene vapor. The tests show that the response sensitivities to ammonia and benzene vapor are essentially linear. The sensing mechanisms of the PANI/SnO2 hybrid material to ammonia and benzene vapors were analyzed. The results demonstrate that doped SnO2 significantly affects the sensitivity, response time, and recovery time of the PANI material.

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