violet–blue 405 nm light
The effects of 405 nm light on bacterial membrane integrity determined by salt and bile tolerance assays, leakage of UV absorbing material and SYTOX green labelling
... of 405 nm light has been accredited to the photoexcitation of intracellular photosensitive porphyrin molecules, which subsequently results in the production of reactive oxygen species (ROS), which ...
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Review of the comparative susceptibility of microbial species to photoinactivation using 380-480 nm violet-blue light
... visible light inactivation of microorganisms and that violet-blue light wave- lengths possess the potential for antimicrobial ...of violet-blue 405 nm ...to ...
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Gomez_2016_photo.pdf
... The violet-blue light of the QLF device, which when focused on the surface of the tooth causes the tooth to autofluoresce, presenting a green color, however, if there is bacterial accumulation ...
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Inactivation of Campylobacter jejuni by exposure to high-intensity 405-nm visible light
... of violet/blue light on this ...high-intensity 405-nm light on ...High-intensity 405-nm light generated from an array of 405-nm ...
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Universal decontamination of hospital surfaces in an occupied inpatient room with a continuous 405 nm light source
... ceiling-mounted light-based continuous decontamination system. It emits a blue-violet (405 nm) light, with white LEDs incorporated to produce a soft pale violet ...
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Assessment of the potential for resistance to antimicrobial violet-blue light in staphylococcus aureus
... antimicrobial violet-blue light exposure would have on bacterial cultures in a stationary, non-proliferating, state, representative of how bacteria would be found in the clinical ...to 405 ...
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Differential sensitivity of osteoblasts and bacterial pathogens to 405-nm light highlighting potential for decontamination applications in orthopedic surgery
... to violet-blue light inactivation can be increased when exogenous δ-aminolevulinic acid (ALA), the precursor of the porphyrin biosynthesis path- way, is added in order to amplify the levels of ...
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New proof-of-concept in viral inactivation : virucidal efficacy of 405 nm light against feline calicivirus as a model for norovirus decontamination
... that 405 nm violet-blue light has germicidal activity against a range of bacteria and fungi (Guffey and Wilborn 2006; Enwemeka et ...of 405 nm light on the bacte- ...
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A new proof-of-concept in bacterial reduction : antimicrobial action of violet-blue light (405 nm) in ex vivo stored plasma
... ultraviolet light, which affects product quality and can be associated with adverse events in ...recipients. 405 nm violet-blue light is antibacterial without the use of ...
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Comparative sensitivity of Trichophyton and Aspergillus conidia to inactivation by violet-blue light exposure
... Methods: The sensitivity of the dermatophytic fungi Trichophyton rubrum and 29 Trichophyton mentagrophytes to 405 nm violet-blue light exposure was investigated, and the 30 results compa[r] ...
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Multi-wavelength optical measurement to enhance thermal/optical analysis for carbonaceous aerosol
... ified using diesel exhaust samples. Tests on ambient and source samples show OC and EC concentrations equivalent to those from conventional carbon analysis when based on the same wavelength ( ∼ 635 nm) for ...
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Efficacy of antimicrobial 405 nm blue-light for inactivation of airborne bacteria
... (UV) light. Although highly antimicrobial, safety restrictions of UV light and chemical disinfection limit their application to unoccupied environments, as a result of their mutagenic/toxic nature and ...
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van urk indole tlc test pdf
... The indoles in Table I are arranged according to their substitution(s) on the indole ring system. It has been reported that condensation of the indole derivative with p-DMAB occurs at the free C-2 position and results in ...
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Analysis of Poul Gernes’ painted folding doors at Herlev Hospital
... Pyrolysis–gas chromatography–mass spectrometry anal- yses were carried out on a sample from Kiosk back (S8). The sample was separated into the yellow design pat- tern layer, the blue violet background ...
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A comparison study of the degradative effects and safety implications of UVC and 405 nm germicidal light sources for endoscope storage
... alternative 405 nm light germicidal source under the same conditions had no notable detrimental effect on the material properties ...to 405 nm light. 405 nm ...
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Growth and characterization of calcium doped barium tartrate crystal from silica gel
... In the present investigation, single crystals of Barium calcium tartrate were grown by gel technique using diffusion method. The growth conditions were optimized by varying the parameters such as concentration of the ...
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Clinical validation and assessment of a modular fluorescent imaging system and algorithm for rapid detection and quantification of dental plaque
... of light any- where from the longer ultraviolet A (UVA) wavelengths to the visible blue border; such absorption is known as the Soret band, with peaks dependent on the specific compound ...
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Enhanced inactivation of Escherichia coli and Listeria monocytogenes by exposure to 405 nm light under sub-lethal temperature, salt and acid stress conditions
... of 405 nm light have generated interest in its use as an emerging disinfection technology with potential food-related ...of 405 nm light for inactivation of Escherichia coli and ...
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Introduction of a new atmospheric pressure plasma device and application on tomato seeds
... altered violet blue light from 5440V to 6120V, it was nearly uniform discharges, it maybe due to the energy of the electron and the active air particles in the plasma increasing with atmos- pheric ...
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A fiberoptic sensor for tissue carbon dioxide monitoring
... (TONOH). Light from a blue (460 nm) LED was launched into the fiber to excite the sensing ...(530 nm), the intensity of which decreased in the presence of CO 2 ...
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