Simple nanosilver composite for photocatalytic inactivation of Salmonella typhimurium

Micro & nano letters

article

Xiao-Lan Wei¹  Yuan-Yuan Qi² 

[1] Chongqing Key Laboratory of Catalysis and Functional Organic Molecule, College of Environment and Resources, Chongqing Technology and Business University;College of Computer Science and Information Engineering, Chongqing Technology and Business University

关键词: silver;    nanoparticles;    nanocomposites;    particle reinforced composites;    microorganisms;    catalysis;    photochemistry;    nanofabrication;    precipitation (physical chemistry);    reduction (chemical);    surface plasmon resonance;    Fourier transform infrared spectra;    nanosilver composite;    photocatalytic inactivation;    photocatalytic killing;    precipitation–reduction method;    light absorption;    visible range;    near infrared range;    Salmonella typhimurium inactivation;    nanocomposite;    visible light irradiation;    surface plasmon resonance;    plasmonic electrons;    nanoparticle;    oxygen molecules;    reactive oxygen species;    Fourier transform infrared spectroscopy;    bacterial cells;    chemometric analysis;    Ag;   

DOI  :  10.1049/mnl.2016.0560

学科分类：计算机科学（综合）

来源: Wiley

【 摘 要 】

Aim: To evaluate the effectiveness of transcutaneous electrical nerve stimulation (TENS) as an adjunctive to nonsteroidalanti-inflammatory drugs (NSAID) for the post-procedural pain in patients who underwent pleurodesisfor pneumothorax.Methodology: Sixty patients in the age group of 20-60 years, planned for pleurodesis in the operating rooms of ourhospital, were divided into two groups of 30 each. Patients were alternatively assigned to one of the two groups.In Group I diclofenac sodium 75 mg in 100 ml of normal saline was started IV after the procedure, while TENSwas applied for 45 minutes during this period. In Group II (control group) diclofenac sodium was started afterthe procedure, and an apparatus identical to TENS, but which did not deliver any electric current was applied asplacebo. The blood pressure and pulse rate were noted at predefined intervals i.e. immediately after the procedureand then at 2, 4, 6 and 8 hrs after the procedure. A 0-10 visual analogue scale (VAS) was used to assess pain at regularintervals. When the VAS score was ≥3, inj. diclofenac sodium 50 mg was repeated intramuscularly.Results: The systolic blood pressure was comparable in both groups immediately and 2 h after the procedure butit was significantly less in Group I at 4, 6 and 8 hrs respectively (P<0.05). The pulse rate was comparable in bothgroups immediately after, but decreased significantly in Group I at 2 hrs (P<0.05), 4 hrs (P<0.02), 6 hrs (P<0.02)and 8 hrs (P<0.02) after the procedure. The VAS score was comparable immediately and at 2 h in both groups(P=NS), but was significantly less in Group I at 4, 6 and 8 hrs after the procedure (P<0.001). The dose of diclofenacsodium used in Group I was significantly less than in the Group II (P<0.02).Conclusion: TENS is useful as an adjunctive to NSAIDs for pain relief in pleurodesis and it lead to reduction insubsequent requirement of NSAIDs. TENS is a valuable strategy to alleviate pain of pleurodesis with no adverseeffects and with a good hemodynamic stability.

【 授权许可】

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