The Efficacy of Preoperative Routine Otorhinolaryngologic Referral Before Endonasal Dacryocystorhinostomy

Jang, Young Jun; Kim, Ho Chang; Suh, Eok Soo

doi:10.3341/jkos.2012.53.10.1392

Cited by 1 publication

(1 citation statement)

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“…[21] It is interesting to note that recently, Shrestha and Yan [22] demonstrated the usefulness of SERS for the determination of CMC of the cationic surfactant CTAB, through the modification of silver nanoparticles (AgNPs) by a Raman-active molecule, 5,5′dithiobis-(2-nitrobenzoic acid); the CMC of CTAB was determined indirectly by analyzing the relative Raman intensity ratio between two characteristic vibrational bands associated with 5,5′-dithiobis-(2-nitrobenzoic acid). Earlier, Jang, [23] on the basis of SERS spectra from the cationic surfactant dodecylpyridinum chloride adsorbed on gold nanoparticles, measured the CMC of the goldassembled micelles of dodecylpyridinum chloride; the CMC was obtained from the intensities ratio of two bands related to the benzene ring moiety as a function of surfactant concentration.…”

Section: Introductionmentioning

confidence: 99%

Surface‐enhanced Raman scattering as a tool to study cationic surfactants exhibiting low critical micelle concentration

Mathioudakis

Beobide

Bokias

et al. 2019

J Raman Spectroscopy

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The collection of surface‐enhanced Raman scattering (SERS) by silver nanocolloids was used to identify the critical micelle concentration (CMC) of three cationic surfactants in 0.5‐M NaCl solutions: hexadecyltrimethylammonium bromide, dodecyltrimethylammonium bromide, and benzalkonium chloride. Despite structural similarity between the three test surfactans, differences of the shape and size of the respective micelles affected the corresponding SERS signals. The CMC values determined by this method agreed with the respective values measured by conventional methods, including fluorescence probing and electrical conductivity measurements. The potential for the application of SERS technique for low CMC determination without surface modification of silver nanoparticles by a Raman‐active molecule was also demonstrated.

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Section: Introductionmentioning

confidence: 99%