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Ariz I, Ansorena D, Astiasaran I. In vitro digestion of beef and vegan burgers cooked by microwave technology: Effects on protein and lipid fractions. Food Res Int 2024; 186:114376. [PMID: 38729723 DOI: 10.1016/j.foodres.2024.114376] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2024] [Revised: 03/26/2024] [Accepted: 04/17/2024] [Indexed: 05/12/2024]
Abstract
Commercial beef burgers and vegan analogues were purchased and, after a microwave treatment, they were submitted to an in vitro digestion (INFOGEST). Vegan cooked burgers showed similar protein content (16-17 %) but lower amounts of total peptides than beef burgers. The protein digestibility was higher in beef burgers. Peptide amounts increased during in vitro digestion, reaching similar amounts in both types of products in the micellar phase (bioaccessible fraction). The fat content in cooked vegan burgers was significantly lower than in beef burgers (16.7 and 21.2 %, respectively), with a higher amount of PUFAs and being the lipolysis activity, measure by FFA, less intense both after cooking and after the gastrointestinal process. Both types of cooked samples showed high carbonyl amounts (34.18 and 25.51 nmol/mg protein in beef and vegan samples, respectively), that decreased during in vitro digestion. On the contrary, lipid oxidation increased during gastrointestinal digestion, particularly in vegan samples. The antioxidant capacity (ABTS and DPPH) showed higher values for vegan products in cooked samples, but significantly decreased during digestion, reaching similar values for both types of products.
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Affiliation(s)
- I Ariz
- Department of Nutrition, Food Science and Physiology, Faculty of Pharmacy and Nutrition, University of Navarra, Irunlarrea 1, 31008 Pamplona, Spain; Center for Nutrition Research, Faculty of Pharmacy and Nutrition, University of Navarra, Irunlarrea 1, 31008 Pamplona, Spain; IdiSNA, Navarra Institute for Health Research, Pamplona, Spain.
| | - D Ansorena
- Department of Nutrition, Food Science and Physiology, Faculty of Pharmacy and Nutrition, University of Navarra, Irunlarrea 1, 31008 Pamplona, Spain; Center for Nutrition Research, Faculty of Pharmacy and Nutrition, University of Navarra, Irunlarrea 1, 31008 Pamplona, Spain; IdiSNA, Navarra Institute for Health Research, Pamplona, Spain.
| | - I Astiasaran
- Department of Nutrition, Food Science and Physiology, Faculty of Pharmacy and Nutrition, University of Navarra, Irunlarrea 1, 31008 Pamplona, Spain; Center for Nutrition Research, Faculty of Pharmacy and Nutrition, University of Navarra, Irunlarrea 1, 31008 Pamplona, Spain; IdiSNA, Navarra Institute for Health Research, Pamplona, Spain.
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Li Y, Xu F, Liu J, Zhang Q, Fan Y. Rapid-release reversible bonding of PMMA-based microfluidic devices with PBMA coating. Biomed Microdevices 2023; 26:6. [PMID: 38141082 DOI: 10.1007/s10544-023-00690-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] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/06/2023] [Indexed: 12/24/2023]
Abstract
PMMA-based microfluidics have been widely used in various applications in biological and chemical fields. In the fabrication process of PMMA-based microfluidics, the substrate and cover plate usually need to be bonded to enclose the microchannel. The bonding process could be permanent or reversible. In some application scenarios, reversible bonding is needed to retrieve the samples inside the channel or reuse the chip. Current reversible bonding methods for PMMA-based microfluidics usually have drawbacks on bonding strength and contaminations from the adhesives used in the bonding process. In this study, a new approach is proposed for the reversible bonding of PMMA-based microfluidics, a layer of PBMA (with a very similar structure to PMMA) was coated on the surface of PMMA and then use the thermal fusion method to achieve the bonding with a high bonding strength, a tensile bonding strength of around 0.8 MPa was achieved. For debond process, a rapid temperature drop will trigger the immediate release of the bonding within several seconds. Detailed bonding strength measurement and biocompatibility tests were also conducted in this study. The proposed bonding method could have wide application potential in the fabrication of PMMA-based microfluidics.
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Affiliation(s)
- Yusheng Li
- College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Fan Xu
- College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Jing Liu
- Department of Pediatrics, China-Japan Friendship Hospital, 100029, Beijing, China
| | - Qi Zhang
- Department of Pediatrics, China-Japan Friendship Hospital, 100029, Beijing, China
| | - Yiqiang Fan
- College of Mechanical and Electrical Engineering, Beijing University of Chemical Technology, Beijing, 100029, China.
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Ahumada-Canale A, Jeet V, Bilgrami A, Seil E, Gu Y, Cutler H. Barriers and facilitators to implementing priority setting and resource allocation tools in hospital decisions: A systematic review. Soc Sci Med 2023; 322:115790. [PMID: 36913838 DOI: 10.1016/j.socscimed.2023.115790] [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] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/05/2022] [Revised: 01/24/2023] [Accepted: 02/17/2023] [Indexed: 02/22/2023]
Abstract
Health care budgets in high-income countries are having issues coping with unsustainable growth in demand, particularly in the hospital setting. Despite this, implementing tools systematising priority setting and resource allocation decisions has been challenging. This study answers two questions: (1) what are the barriers and facilitators to implementing priority setting tools in the hospital setting of high-income countries? and (2) what is their fidelity? A systematic review using the Cochrane methods was conducted including studies of hospital-related priority setting tools reporting barriers or facilitators for implementation, published after the year 2000. Barriers and facilitators were classified using the Consolidated Framework for Implementation Research (CFIR). Fidelity was assessed using priority setting tool's standards. Out of thirty studies, ten reported program budgeting and marginal analysis (PBMA), twelve multi-criteria decision analysis (MCDA), six health technology assessment (HTA) related frameworks, and two, an ad hoc tool. Barriers and facilitators were outlined across all CFIR domains. Implementation factors not frequently observed, such as 'evidence of previous successful tool application', 'knowledge and beliefs about the intervention' or 'external policy and incentives' were reported. Conversely, some constructs did not yield any barrier or facilitator including 'intervention source' or 'peer pressure'. PBMA studies satisfied the fidelity criteria between 86% and 100%, for MCDA it varied between 36% and 100%, and for HTA it was between 27% and 80%. However, fidelity was not related to implementation. This study is the first to use an implementation science approach. Results represent the starting point for organisations wishing to use priority setting tools in the hospital setting by providing an overview of barriers and facilitators. These factors can be used to assess readiness for implementation or to serve as the foundation for process evaluations. Through our findings, we aim to improve the uptake of priority setting tools and support their sustainable use.
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Affiliation(s)
- Antonio Ahumada-Canale
- Macquarie University Centre for the Health Economy, Macquarie Business School & Australian Institute of Health Innovation, Macquarie University, Level 5, 75 Talavera Rd, Macquarie Park, New South Wales, 2109, Australia.
| | - Varinder Jeet
- Macquarie University Centre for the Health Economy, Macquarie Business School & Australian Institute of Health Innovation, Macquarie University, Level 5, 75 Talavera Rd, Macquarie Park, New South Wales, 2109, Australia.
| | - Anam Bilgrami
- Macquarie University Centre for the Health Economy, Macquarie Business School & Australian Institute of Health Innovation, Macquarie University, Level 5, 75 Talavera Rd, Macquarie Park, New South Wales, 2109, Australia.
| | - Elizabeth Seil
- Macquarie University Centre for the Health Economy, Macquarie Business School & Australian Institute of Health Innovation, Macquarie University, Level 5, 75 Talavera Rd, Macquarie Park, New South Wales, 2109, Australia.
| | - Yuanyuan Gu
- Macquarie University Centre for the Health Economy, Macquarie Business School & Australian Institute of Health Innovation, Macquarie University, Level 5, 75 Talavera Rd, Macquarie Park, New South Wales, 2109, Australia.
| | - Henry Cutler
- Macquarie University Centre for the Health Economy, Macquarie Business School & Australian Institute of Health Innovation, Macquarie University, Level 5, 75 Talavera Rd, Macquarie Park, New South Wales, 2109, Australia.
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Krupa I, Sobolčiak P, Mrlik M. Smart Non-Woven Fiber Mats with Light-Induced Sensing Capability. Nanomaterials (Basel) 2019; 10:E77. [PMID: 31906164 PMCID: PMC7022566 DOI: 10.3390/nano10010077] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/17/2019] [Revised: 12/23/2019] [Accepted: 12/27/2019] [Indexed: 02/07/2023]
Abstract
This article is focused on the facile procedure for 2D graphene oxide (GO) fabrication, utilizing reversible de-activation polymerization approach and therefore enhanced compatibility with surrounding polymer matrix. Such tunable improvement led to a controllable sensing response after irradiation with light. The neat GO as well as surface initiated atom transfer radical polymerization (SI-ATRP) grafted particles were investigated by atomic force microscopy, Fourier transform infrared spectroscopy and thermogravimetric analysis. To confirm the successful surface reduction, X-ray photoelectron spectroscopy and Raman spectroscopy was utilized. The composites in form of non-woven fiber mats containing ungrafted GO and controllably grafted GO with compact layer of polymer dispersed in poly(vinylidene-co-hexafluoropropylene) were prepared by electrospinning technique and characterized by scanning electron microscopy. Mechanical performance was characterized using dynamic mechanical analysis. Thermal conductivity was employed to confirm that the conducting filler was well-dispersed in the polymer matrix. The presented controllable coating with polymer layer and its impact on the overall performance, especially photo-actuation and subsequent contraction of the material aiming on the sensing applications, was discussed.
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Affiliation(s)
- Igor Krupa
- Center for Advanced Materials, Qatar University, Doha P.O. Box 2713, Qatar;
| | - Patrik Sobolčiak
- Center for Advanced Materials, Qatar University, Doha P.O. Box 2713, Qatar;
| | - Miroslav Mrlik
- Centre of Polymer Systems, University Institute, Tomas Bata University in Zlin, Trida T. Bati 5678, 76001 Zlin, Czech Republic
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Kamberi M, Pinson D, Pacetti S, Perkins LEL, Hossainy S, Mori H, Rapoza RJ, Kolodgie F, Virmani R. Evaluation of chemical stability of polymers of XIENCE everolimus-eluting coronary stents in vivo by pyrolysis-gas chromatography/mass spectrometry. J Biomed Mater Res B Appl Biomater 2017; 106:1721-1729. [PMID: 28884951 DOI: 10.1002/jbm.b.33979] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2017] [Revised: 07/03/2017] [Accepted: 08/16/2017] [Indexed: 11/06/2022]
Abstract
The polymers poly(vinylidene fluoride-co-hexafluoropropylene) (PVDF-HFP) and poly(n-butyl methacrylate) (PBMA) are employed in manufacturing the XIENCE family of coronary stents. PBMA serves as a primer and adheres to both the stent and the drug coating. PVDF-HFP is employed in the drug matrix layer to hold the drug everolimus on the stent and control its release. Chemical stability of the polymers of XIENCE stents in the in-vivo environment was evaluated by pyrolysis-gas chromatography with mass spectrometry (Py-GC/MS) detection. For this evaluation, XIENCE stents explanted from porcine coronary arteries and from human coronary artery specimens at autopsy after 2-4 and 5-7 years of implantation, respectively, were compared to freshly manufactured XIENCE stents (controls). The comparison of pyrograms of explanted stent samples and controls showed identical fragmentation fingerprints of polymers, indicating that PVDF-HFP and PBMA maintained their chemical integrity after multiple years of XIENCE coronary stent implantation. The findings of the present study demonstrate the chemical stability of PVDF-HFP and PBMA polymers of the XIENCE family of coronary stents in the in-vivo environment, and constitute a further proof of the suitability of PVDF-HFP as a drug carrier for the drug eluting stent applications. © 2017 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 106B: 1721-1729, 2018.
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Affiliation(s)
- Marika Kamberi
- Department of Analytical Sciences, Abbott Vascular, Inc., Santa Clara, California, 95054-2807
| | - David Pinson
- Department of Analytical Sciences, Abbott Vascular, Inc., Santa Clara, California, 95054-2807
| | - Stephen Pacetti
- Division of Research and Development, Abbott Vascular, Inc., Santa Clara, California, 95054-2807
| | - Laura E L Perkins
- Division of Research and Development, Abbott Vascular, Inc., Santa Clara, California, 95054-2807
| | - Syed Hossainy
- Division of Research and Development, Abbott Vascular, Inc., Santa Clara, California, 95054-2807
| | | | - Richard J Rapoza
- Division of Research and Development, Abbott Vascular, Inc., Santa Clara, California, 95054-2807
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