1
|
Liu H, Sama GR, Robinson A, Mountford S, E Thompson P, Rodda A, Forsythe J, Mornane PJ, Pasic P, Thissen H, Byrne M, Kaye DM, Dear AE. Design, Development, In Vitro and Preliminary In Vivo Evaluation of a Novel Photo-Angioplasty Device: Lumi-Solve. Cardiovasc Eng Technol 2021; 12:466-473. [PMID: 33709249 DOI: 10.1007/s13239-021-00525-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 02/08/2021] [Indexed: 11/30/2022]
Abstract
PURPOSE Paclitaxel (PTX)-coated drug eluting balloon catheters (DEBc) used in the management of neointimal hyperplasia (NIH) have been associated with safety concerns. Alternative coating agents and targeted delivery systems may improve safety and DEBc efficacy. Utilizing a multi-platform approach we designed, developed and evaluated Lumi-Solve, a novel DEBc, coated with ultraviolet (UV) 365 nm-activated caged metacept-3 (c-MCT-3), an epigenetic agent from the histone deacetylase inhibitor (HDACi) class. METHODS In vitro catheter and contrast media transmission of UV365nm was evaluated spectroscopically. UV365nm conversion of c-MCT-3 to MCT-3 was evaluated chromatographically. Cellular toxicity and HDACi activity of c-MCT-3 ∓UV365nm was evaluated in vitro. In vivo UV365nm conversion of c-MCT-3 to MCT-3 was evaluated in an ovine carotid artery model. RESULTS Catheter material and dilute contrast media did not attenuate UV365nm transmission or c-MCT-3 activation. c-MCT-3 demonstrated less cellular toxicity than MCT-3 and PTX. UV365nm-activated c-MCT-3 demonstrated HDACi activity. In vivo activation of c-MCT-3 produced MCT-3. CONCLUSIONS Lumi-Solve, a novel DEBc device developed utilizing a combination of chemical, fibre-optic and catheter based technology platforms, demonstrated potential for targeted delivery of bioactive HDACi to the blood vessel wall supporting direct application to the management of NIH and warranting additional in vivo studies.
Collapse
Affiliation(s)
- HongBin Liu
- Eastern Health Clinical School, Monash University, Box Hill, Australia
| | - Gopal R Sama
- Department of Chemistry, Monash University, Clayton, Australia
| | - Andrea Robinson
- Department of Chemistry, Monash University, Clayton, Australia
| | - Simon Mountford
- Monash Institute of Pharmaceutical Sciences, Monash University, Clayton, Australia
| | - Philip E Thompson
- Monash Institute of Pharmaceutical Sciences, Monash University, Clayton, Australia
| | - Andrew Rodda
- Monash Institute of Medical Engineering, Monash University, Clayton, Australia
| | - John Forsythe
- Monash Institute of Medical Engineering, Monash University, Clayton, Australia
| | | | - Paul Pasic
- CSIRO Biomedical Translational Facility, Melbourne, Australia
| | - Helmut Thissen
- CSIRO Biomedical Translational Facility, Melbourne, Australia
| | - Melissa Byrne
- Baker Heart and Diabetes Institute, Melbourne, Australia
| | - David M Kaye
- Baker Heart and Diabetes Institute, Melbourne, Australia
| | - Anthony E Dear
- Eastern Health Clinical School, Monash University, Box Hill, Australia.
| |
Collapse
|
2
|
Nematollahi N, Doronila A, Mornane PJ, Duan A, Kolev SD, Steinemann A. Volatile chemical emissions from fragranced baby products. Air Qual Atmos Health 2018; 11:785-790. [PMID: 30147808 DOI: 10.1007/s11869-018-0606-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 06/08/2018] [Indexed: 05/25/2023]
Abstract
Fragranced consumer products have been associated with adverse effects on human health. Babies are exposed to a variety of fragranced consumer products, which can emit numerous volatile organic compounds (VOCs), some considered potentially hazardous. However, fragranced baby products are exempt from disclosure of all ingredients. Consequently, parents and the public have little information on product emissions. This study investigates VOCs emitted from a range of fragranced baby products, including baby hair shampoos, body washes, lotions, creams, ointments, oils, hair sprays, and fragrance. The products were analysed using gas chromatography/mass spectrometry (GC/MS) headspace analysis. Of the 42 baby products tested, 21 products made claims of green, organic, or all-natural. Results of the analysis found 684 VOCs emitted collectively from the 42 products, representing 228 different VOCs. Of these 684 VOCs, 207 are classified as potentially hazardous under federal regulations, representing 43 different VOCs. The most common VOCs emitted were limonene, acetaldehyde, ethanol, alpha-pinene, linalool, beta-myrcene, acetone, and beta-pinene. A comparison between ingredients emitted and ingredients listed reveals that only 5% of the 684 VOCs, including 12% of 207 potentially hazardous VOCs, were listed on the product label, safety data sheet, or website. More than 95% of both green and regular products emitted one or more potentially hazardous VOCs. Further, emissions of the most prevalent VOCs from green, organic, or all-natural products were not significantly different from regular products. Results from this study can help improve public awareness about emissions from baby products, with the aim to reduce pollutant exposure and potential adverse effects on babies.
Collapse
Affiliation(s)
- Neda Nematollahi
- 1Department of Infrastructure Engineering, Melbourne School of Engineering, The University of Melbourne, Melbourne, VIC 3010 Australia
- 2School of Chemistry, The University of Melbourne, Melbourne, VIC 3010 Australia
| | - Augustine Doronila
- 2School of Chemistry, The University of Melbourne, Melbourne, VIC 3010 Australia
| | - Patrick J Mornane
- 2School of Chemistry, The University of Melbourne, Melbourne, VIC 3010 Australia
| | - Alex Duan
- 2School of Chemistry, The University of Melbourne, Melbourne, VIC 3010 Australia
| | - Spas D Kolev
- 2School of Chemistry, The University of Melbourne, Melbourne, VIC 3010 Australia
| | - Anne Steinemann
- 1Department of Infrastructure Engineering, Melbourne School of Engineering, The University of Melbourne, Melbourne, VIC 3010 Australia
- 3College of Science and Engineering, James Cook University, Townsville, QLD 4811 Australia
- 4Climate, Atmospheric Sciences, and Physical Oceanography, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA 92093 USA
| |
Collapse
|
3
|
Nematollahi N, Doronila A, Mornane PJ, Duan A, Kolev SD, Steinemann A. Volatile chemical emissions from fragranced baby products. Air Qual Atmos Health 2018; 11:785-790. [PMID: 30147808 PMCID: PMC6097056 DOI: 10.1007/s11869-018-0593-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2018] [Accepted: 06/08/2018] [Indexed: 05/31/2023]
Abstract
Fragranced consumer products have been associated with adverse effects on human health. Babies are exposed to a variety of fragranced consumer products, which can emit numerous volatile organic compounds (VOCs), some considered potentially hazardous. However, fragranced baby products are exempt from disclosure of all ingredients. Consequently, parents and the public have little information on product emissions. This study investigates VOCs emitted from a range of fragranced baby products, including baby hair shampoos, body washes, lotions, creams, ointments, oils, hair sprays, and fragrance. The products were analysed using gas chromatography/mass spectrometry (GC/MS) headspace analysis. Of the 42 baby products tested, 21 products made claims of green, organic, or all-natural. Results of the analysis found 684 VOCs emitted collectively from the 42 products, representing 228 different VOCs. Of these 684 VOCs, 207 are classified as potentially hazardous under federal regulations, representing 43 different VOCs. The most common VOCs emitted were limonene, acetaldehyde, ethanol, alpha-pinene, linalool, beta-myrcene, acetone, and beta-pinene. A comparison between ingredients emitted and ingredients listed reveals that only 5% of the 684 VOCs, including 12% of 207 potentially hazardous VOCs, were listed on the product label, safety data sheet, or website. More than 95% of both green and regular products emitted one or more potentially hazardous VOCs. Further, emissions of the most prevalent VOCs from green, organic, or all-natural products were not significantly different from regular products. Results from this study can help improve public awareness about emissions from baby products, with the aim to reduce pollutant exposure and potential adverse effects on babies.
Collapse
Affiliation(s)
- Neda Nematollahi
- Department of Infrastructure Engineering, Melbourne School of Engineering, The University of Melbourne, Melbourne, VIC 3010 Australia
- School of Chemistry, The University of Melbourne, Melbourne, VIC 3010 Australia
| | - Augustine Doronila
- School of Chemistry, The University of Melbourne, Melbourne, VIC 3010 Australia
| | - Patrick J. Mornane
- School of Chemistry, The University of Melbourne, Melbourne, VIC 3010 Australia
| | - Alex Duan
- School of Chemistry, The University of Melbourne, Melbourne, VIC 3010 Australia
| | - Spas D. Kolev
- School of Chemistry, The University of Melbourne, Melbourne, VIC 3010 Australia
| | - Anne Steinemann
- Department of Infrastructure Engineering, Melbourne School of Engineering, The University of Melbourne, Melbourne, VIC 3010 Australia
- College of Science and Engineering, James Cook University, Townsville, QLD 4811 Australia
- Climate, Atmospheric Sciences, and Physical Oceanography, Scripps Institution of Oceanography, University of California, San Diego, La Jolla, CA 92093 USA
| |
Collapse
|
4
|
Ramdzan AN, Mornane PJ, McCullough MJ, Mazurek W, Kolev SD. Determination of acetaldehyde in saliva by gas-diffusion flow injection analysis. Anal Chim Acta 2013; 786:70-7. [PMID: 23790294 DOI: 10.1016/j.aca.2013.05.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/26/2012] [Revised: 04/25/2013] [Accepted: 05/05/2013] [Indexed: 11/19/2022]
Abstract
The consumption of ethanol is known to increase the likelihood of oral cancer. In addition, there has been a growing concern about possible association between long term use of ethanol-containing mouthwashes and oral cancer. Acetaldehyde, known to be a carcinogen, is the first metabolite of ethanol and it can be produced in the oral cavity after consumption or exposure to ethanol. This paper reports on the development of a gas-diffusion flow injection method for the online determination of salivary acetaldehyde by its colour reaction with 3-methyl-2-benzothiazolinone hydrazone (MBTH) and ferric chloride. Acetaldehyde samples and standards (80 μL) were injected into the donor stream containing NaCl from which acetaldehyde diffused through the hydrophobic Teflon membrane of the gas-diffusion cell into the acceptor stream containing the two reagents mentioned above. The resultant intense green coloured dye was monitored spectrophotometrically at 600 nm. Under the optimum working conditions the method is characterized by a sampling rate of 9h(-1), a linear calibration range of 0.5-15 mg L(-1) (absorbance=5.40×10(-2) [acetaldehyde, mg L(-1)], R(2)=0.998), a relative standard deviation (RSD) of 1.90% (n=10, acetaldehyde concentration of 2.5 mg L(-1)), and a limit of detection (LOD) of 12.3 μg L(-1). The LOD and sampling rate of the proposed method are superior to those of the conventional gas chromatographic (GC) method (LOD=93.0 μg L(-1) and sampling rate=4 h(-1)). The reliability of the proposed method was illustrated by the fact that spiked with acetaldehyde saliva samples yielded excellent recoveries (96.6-101.9%), comparable to those obtained by GC (96.4-102.3%) and there was no statistically significant difference at the 95% confidence level between the two methods when non-spiked saliva samples were analysed.
Collapse
Affiliation(s)
- Adlin N Ramdzan
- School of Chemistry, The University of Melbourne, Parkville, VIC 3010, Australia
| | | | | | | | | |
Collapse
|