scholarly journals Curcumin-mediated photodynamic antimicrobial chemotherapy (PACT): a systematic review / Quimioterapia fotodinâmica antimicrobiana (PACT) mediada por curcumina: uma revisão sistemática

2021 ◽  
Vol 4 (6) ◽  
pp. 26142-26152
Author(s):  
Eduardo Cândido da Silva ◽  
Ulrich Vasconcelos
Keyword(s):  
Systematic Review ◽  
Antimicrobial Chemotherapy ◽  
Light Emitting Diode ◽  
Antibiofilm Activity ◽  
Short Wavelength Range ◽  
Light Emitting ◽  
Gram Positive Bacteria ◽  
Photodynamic Antimicrobial Chemotherapy ◽  
Naturally Occurring ◽  
Aims And Scope

Light energy is known to be used to combat microbial growth. Photodynamic antimicrobial chemotherapy (PACT) has the potential to use different naturally-occurring compounds, such as photosensitizers. Curcumin is an example of a molecule of interest in different areas under different optics. This systematic review surveys the aims and scope of research on curcumin-mediated PACT published between January 2011 and December 2020. The search was carried out in MEDLINE, PubMed, EMBASE and Periódicos CAPES databases employing the keywords “Photodynamic antimicrobial chemotherapy”, “photosensitizer”, “curcumin” and the descriptor “Light-Emitting Diode”. It was observed that in the last decade little material meeting these criteria was published. Brazilian institutions concentrated most of their studies on cytotoxic activity. The most recent work, however, focused on antibiofilm activity. Gram-positive bacteria are more sensitive to curcumin-mediated PACT over a short wavelength range. Different concentrations and exposure time of the photosensitizer were evaluated, but the amount of information is still insufficient to establish the best treatment condition as the number of tested pathogens is still poor.

scholarly journals Methods of Disinfecting Stethoscopes: Systematic Review

2020 ◽  
Vol 17 (6) ◽  
pp. 1856 ◽  
Author(s):  
Margherita Napolitani ◽  
Daiana Bezzini ◽  
Fulvio Moirano ◽  
Corrado Bedogni ◽  
Gabriele Messina
Keyword(s):  
Systematic Review ◽  
English Language ◽  
Light Emitting Diode ◽  
Bacterial Load ◽  
Silver Ions ◽  
Light Emitting ◽  
Disinfection Methods ◽  
Mesh Terms ◽  
Healthcare Associated ◽  
The Cost

The aim of this systematic review was to investigate the effectiveness of various disinfection methods available for stethoscopes. In March 2019, we performed a search in PubMed and Scopus using the search terms: “reducing stethoscopes contamination” and “disinfection stethoscopes”; the Mesh terms used in PubMed were “Decontamination/methods” or “Disinfection/methods” and “Stethoscopes/microbiology”. Selection criteria were: English language; at least one disinfection method tested. A total of 253 publications were screened. After title, abstract, and full-text analysis, 17 papers were included in the systematic review. Ethanol at 90%, Ethanol-Based Hands Sanitizer (EBHS), triclosan, chlorhexidine, isopropyl alcohol, 66% ethyl alcohol, sodium hypochlorite, and benzalkonium chloride have been proven to lower the presence of bacteria on stethoscopes’ surfaces. In addition, alcohol wipes show effective results. A wearable device emitting ultraviolet C by Light-Emitting Diode (LED) resulted efficacious against common microorganisms involved in Healthcare Associated Infections. The cover impregnated with silver ions seemed to be associated with significantly higher colony counts. Instead, copper stethoscopes surface reduced bacterial load. The disinfection of stethoscopes appears to be essential. There are many valid methods available; the choice depends on various factors, such as the cost, availability, and practicality.

Applications of Ultraviolet Light–Emitting Diode Technology in Horticultural Produce: a Systematic Review and Meta-analysis

2021 ◽  
Author(s):  
Sadeeya Khan ◽  
Aamir Hussain Dar ◽  
Rafeeya Shams ◽  
Mohsin Bashir Aga ◽  
Mohammad Wasim Siddiqui ◽  
...  
Keyword(s):  
Systematic Review ◽  
Ultraviolet Light ◽  
Light Emitting Diode ◽  
Meta Analysis ◽  
Light Emitting

Effect of phototherapy (low-level laser therapy and light-emitting diode therapy) on exercise performance and markers of exercise recovery: a systematic review with meta-analysis

2013 ◽  
Vol 30 (2) ◽  
pp. 925-939 ◽  
Author(s):  
Ernesto Cesar Pinto Leal-Junior ◽  
Adriane Aver Vanin ◽  
Eduardo Foschini Miranda ◽  
Paulo de Tarso Camillo de Carvalho ◽  
Simone Dal Corso ◽  
...  
Keyword(s):  
Systematic Review ◽  
Laser Therapy ◽  
Exercise Performance ◽  
Light Emitting Diode ◽  
Meta Analysis ◽  
Low Level Laser Therapy ◽  
Exercise Recovery ◽  
Light Emitting ◽  
Low Level Laser ◽  
Level Laser

Photodynamic antimicrobial chemotherapy has an overt killing effect on periodontal pathogens? A systematic review of experimental studies

2019 ◽  
Vol 34 (8) ◽  
pp. 1527-1534 ◽  
Author(s):  
Daniele Peron ◽  
Alexandre Bergamo ◽  
Renato Prates ◽  
Stella Sousa Vieira ◽  
Paulo de Tarso Camillo de Carvalho ◽  
...  
Keyword(s):  
Systematic Review ◽  
Antimicrobial Chemotherapy ◽  
Experimental Studies ◽  
Periodontal Pathogens ◽  
Killing Effect ◽  
Photodynamic Antimicrobial Chemotherapy

scholarly journals Effects of Various Physical Interventions on Reducing Neuromuscular Fatigue Assessed by Electromyography: A Systematic Review and Meta-Analysis

2021 ◽  
Vol 9 ◽  
Author(s):  
Xiao Hou ◽  
Jingmin Liu ◽  
Kaixiang Weng ◽  
Lisa Griffin ◽  
Laura A. Rice ◽  
...  
Keyword(s):  
Systematic Review ◽  
Muscle Fatigue ◽  
Light Emitting Diode ◽  
Meta Analysis ◽  
Neuromuscular Fatigue ◽  
Recovery Effect ◽  
Active Recovery ◽  
Light Emitting ◽  
Data Points ◽  
Subjective Outcomes

Introduction: Various interventions have been applied to improve recovery from muscle fatigue based on evidence from subjective outcomes, such as perceived fatigue and soreness, which may partly contribute to conflicting results of reducing muscle fatigue. There is a need to assess the effectiveness of various intervention on reducing neuromuscular fatigue assessed by a quantitative outcome, such as electromyography (EMG). The objective of this review and meta-analysis was to evaluate the effectiveness of different interventions and intervention timing for reducing fatigue rates during exercise.Methods: The literature was searched from the earliest record to March 2021. Eighteen studies with a total of 87 data points involving 281 participants and seven types of interventions [i.e., active recovery (AR), compression, cooling, electrical stimulation (ES), light-emitting diode therapy (LEDT), massage, and stretching] were included in this meta-analysis.Results: The results showed that compression (SMD = 0.28; 95% CI = −0.00 to 0.56; p = 0.05; I2 = 58%) and LEDT (SMD = 0.49; 95% CI = 0.11 to 0.88; p = 0.01; I2 = 52%) have a significant recovery effect on reducing muscle fatigue. Additionally, compression, AR, and cooling have a significant effect on reducing muscle fatigue when conducted during exercise, whereas a non-effective trend when applied after exercise.Discussion: This meta-analysis suggests that compression and LEDT have a significant effect on reducing muscle fatigue. The results also suggest that there is a significant effect or an effective trend on reducing muscle fatigue when compression, AR, cooling, and ES are applied during exercise, but not after exercise.

Synchronization of Chaotic Quantum Dot Light Emitting Diodes under Optical Feedback Effect

2020 ◽  
pp. 144-148
Keyword(s):  
Quantum Dot ◽  
Delay Time ◽  
Chaos Synchronization ◽  
Optical Feedback ◽  
Light Emitting Diode ◽  
Feedback Effect ◽  
Complete Synchronization ◽  
Light Emitting ◽  
Coupling Methods ◽  
Coupling Parameters

Chaos synchronization of delayed quantum dot light emitting diode has been studied theortetically which are coupled via the unidirectional and bidirectional. at synchronization of chaotic, The dynamics is identical with delayed optical feedback for those coupling methods. Depending on the coupling parameters and delay time the system exhibits complete synchronization, . Under proper conditions, the receiver quantum dot light emitting diode can be satisfactorily synchronized with the transmitter quantum dot light emitting diode due to the optical feedback effect.

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