Facile catalytic growth of cyanoacrylate nanofibers

Mankidy, Pratik J.; Rajagopalan, Ramakrishnan; Foley, Henry C.

doi:10.1039/b514600c

Cited by 35 publications

(30 citation statements)

References 13 publications

(9 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Furthermore, it does not get too close to 100% which may result in excessive background development. Development at 60% RH yields a 'tortellini-like' polymer structure and a two-dimensional film, possibly due to the initiation by a hard anion which then leads to a very fast initiation and many active centres of polymer growth [19]. At 80% RH, the initiation of polymerisation is slower resulting in fewer active centres of polymer growth and thus leading to growth in one direction and a 'noodle-like' morphology [20].…”

Section: Atmospheric Cyanoacrylate Processmentioning

confidence: 98%

A comparison between atmospheric/humidity and vacuum cyanoacrylate fuming of latent fingermarks

Farrugia

Fraser

Friel

et al. 2015

Forensic Science International

View full text Add to dashboard Cite

A number of pseudo-operational trials were set up to compare the atmospheric/humidity and vacuum cyanoacrylate fuming processes on plastic carrier bags. The fuming processes were compared using two-step cyanoacrylate fuming with basic yellow 40 (BY40) staining and a one-step fluorescent cyanoacrylate fuming, Lumicyano 4%. Preliminary work using planted fingermarks and split depletions were performed to identify the optimum vacuum fuming conditions. The first pseudo-operational trial compared the different fuming conditions (atmospheric/humidity vs. vacuum) for the two-step process where an additional 50% more marks were detected with the atmospheric/humidity process. None of the marks by the vacuum process could be observed visually; however, a significant number of marks were detected by fluorescence after BY40 staining. The second trial repeated the same work in trial 1 using the one-step cyanoacrylate process, Lumicyano at a concentration of 4%. Trial 2 provided comparable results to trial 1 and all the items were then re-treated with Lumicyano 4% at atmospheric/humidity conditions before dyeing with BY40 to provide the sequences of process A (Lumicyano 4% atmospheric-Lumicyano 4% atmospheric-BY40) and process B (Lumicyano 4% vacuum-Lumicyano 4% atmospheric-BY40). The number of marks (visual and fluorescent) was counted after each treatment with a substantial increase in the number of detected marks in the second and third treatments of the process. The increased detection rate after the double Lumicyano process was unexpected and may have important implications. Trial 3 was performed to investigate whether the amount of cyanoacrylate and/or fuming time had an impact on the results observed in trial 2 whereas trial 4 assessed if the double process using conventional cyanoacrylate, rather than Lumicyano 4%, provided an increased detection rate. Trials 3 and 4 confirmed that doubling the amount of Lumicyano 4% cyanoacrylate and fuming time produced a lower detection rate than the double process with Lumicyano 4%. Furthermore, the double process with conventional cyanoacrylate did not provide any benefit. Scanning electron microscopy was also performed to investigate the morphology of the cyanoacrylate polymer under different conditions. The atmospheric/humidity process appears to be superior to the vacuum process for both the two-step and one-step cyanoacrylate fuming, although the two-step process performed better in comparison to the one-step process under vacuum conditions. Nonetheless, the use of vacuum cyanoacrylate fuming may have certain operational advantages and its use does not adversely affect subsequent cyanoacrylate fuming with atmospheric/humidity conditions.

show abstract

Section: Atmospheric Cyanoacrylate Processmentioning

confidence: 98%

A comparison between atmospheric/humidity and vacuum cyanoacrylate fuming of latent fingermarks

Farrugia

Fraser

Friel

et al. 2015

Forensic Science International

View full text Add to dashboard Cite

show abstract

“…Aimed at exploring new materials to construct ordered porous structure by BFs, we here introduced in situ polymerization into the procedure, by using water droplets as initiators. Alkylcyanoacrylate (ACA) monomers, including ethyl, butyl and octyl a-cyanoacrylate (ECA, BCA, and OCA), are commonly used as super glue [42] or rapid medical adhesive [43]. ACA can perform anionic polymerization rapidly initiated by weak base or even trace amount of water [44][45][46].…”

Section: Introductionmentioning

confidence: 99%

Fabrication of honeycomb-patterned polyalkylcyanoacrylate films from monomer solution by breath figures method

Wang

Zhang

et al. 2010

Journal of Colloid and Interface Science

View full text Add to dashboard Cite

“…ECA has relatively high vapor pressure and the polymerization can occur directly at the interface between the monomer vapor and water or nucleophilic substituents [30,31]. These properties have been employed to ''develop" fingerprints [32], grow nanofibers [25] and coat on silica nanoparticles [33,34]. ECA is also used as super glue and finds applications in medicine such as liquid bandages and suture-less surgery.…”

Section: Introductionmentioning

confidence: 98%

“…Because of the biocompatibility and biodegradability of PECA, the obtained surfaces might be used in the biomedical field [23,24]. PECA can be synthesized by anionic polymerization from ethyl acyanoacrylate (ECA) based on a nucleophilic attack mechanism [25]. ECA is one of the most reactive monomers in anionic polymerization [26].…”

Section: Introductionmentioning

confidence: 99%

Facile preparation of poly(ethyl α-cyanoacrylate) superhydrophobic and gradient wetting surfaces

Dai

Tan

et al. 2009

Journal of Colloid and Interface Science

View full text Add to dashboard Cite

Facile catalytic growth of cyanoacrylate nanofibers

Abstract: High aspect ratio (>500), neat poly(ethyl 2-cyanoacrylate) nanofibers were synthesized catalytically by vapour phase polymerization under high relative humidity and ambient conditions.

Cited by 35 publications

References 13 publications

A comparison between atmospheric/humidity and vacuum cyanoacrylate fuming of latent fingermarks

A comparison between atmospheric/humidity and vacuum cyanoacrylate fuming of latent fingermarks

Fabrication of honeycomb-patterned polyalkylcyanoacrylate films from monomer solution by breath figures method

Facile preparation of poly(ethyl α-cyanoacrylate) superhydrophobic and gradient wetting surfaces

Contact Info

Product

Resources

About