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Cant DJH, Pei Y, Shchukarev A, Ramstedt M, Marques SS, Segundo MA, Parot J, Molska A, Borgos SE, Shard AG, Minelli C. Cryo-XPS for Surface Characterization of Nanomedicines. J Phys Chem A 2023; 127:8220-8227. [PMID: 37733882 DOI: 10.1021/acs.jpca.3c03879] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/23/2023]
Abstract
Nanoparticles used for medical applications commonly possess coatings or surface functionalities intended to provide specific behavior in vivo, for example, the use of PEG to provide stealth properties. Direct, quantitative measurement of the surface chemistry and composition of such systems in a hydrated environment has thus far not been demonstrated, yet such measurements are of great importance for the development of nanomedicine systems. Here we demonstrate the first use of cryo-XPS for the measurement of two PEG-functionalized nanomedicines: a polymeric drug delivery system and a lipid nanoparticle mRNA carrier. The observed differences between cryo-XPS and standard XPS measurements indicate the potential of cryo-XPS for providing quantitative measurements of such nanoparticle systems in hydrated conditions.
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Affiliation(s)
- David J H Cant
- National Physical Laboratory, Hampton Road, Teddington TW11 0LW, U.K
| | - Yiwen Pei
- National Physical Laboratory, Hampton Road, Teddington TW11 0LW, U.K
| | | | | | - Sara S Marques
- LAQV, REQUIMTE, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, R. Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Marcela A Segundo
- LAQV, REQUIMTE, Department of Chemical Sciences, Faculty of Pharmacy, University of Porto, R. Jorge Viterbo Ferreira 228, 4050-313 Porto, Portugal
| | - Jeremie Parot
- Department of Biotechnology and Nanomedicine, SINTEF Industry, 7465 Trondheim, Norway
| | - Alicja Molska
- Department of Biotechnology and Nanomedicine, SINTEF Industry, 7465 Trondheim, Norway
| | - Sven E Borgos
- Department of Biotechnology and Nanomedicine, SINTEF Industry, 7465 Trondheim, Norway
| | - Alexander G Shard
- National Physical Laboratory, Hampton Road, Teddington TW11 0LW, U.K
| | - Caterina Minelli
- National Physical Laboratory, Hampton Road, Teddington TW11 0LW, U.K
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Shchukarev A, Ramstedt M. Cryo-XPS: probing intact interfaces in nature and life. SURF INTERFACE ANAL 2016. [DOI: 10.1002/sia.6025] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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Hankett JM, Lu X, Liu Y, Seeley E, Chen Z. Interfacial molecular restructuring of plasticized polymers in water. Phys Chem Chem Phys 2014; 16:20097-106. [DOI: 10.1039/c4cp03206c] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Abstract
We present a means to study the molecular changes of the top and bottom of polymers contacted to water simultaneously in situ. Plasticizers were found to transfer from polymer surfaces to water in minutes.
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Affiliation(s)
| | - Xiaolin Lu
- State Key Laboratory of Bioelectronics
- School of Biological Science & Medical Engineering
- Southeast University
- Nanjing, P. R. China
| | - Yuwei Liu
- Department of Chemistry
- University of Michigan
- Ann Arbor, USA
| | - Emily Seeley
- Department of Chemistry
- University of Michigan
- Ann Arbor, USA
| | - Zhan Chen
- Department of Chemistry
- University of Michigan
- Ann Arbor, USA
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Mérian T, Goddard JM. Advances in nonfouling materials: perspectives for the food industry. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:2943-2957. [PMID: 22393944 DOI: 10.1021/jf204741p] [Citation(s) in RCA: 66] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Fouling of complex food components onto food-processing materials affects food quality, food safety, and operating efficiency. Developments in nonfouling and fouling-release materials for biomedical and marine applications enable the potential for adaptation to food applications; however, challenges remain. The purpose of this review is to present different strategies to prevent fouling and/or facilitate foulant removal with a critical point of view for an application of such materials on food-processing surfaces. Nonfouling, self-cleaning, and amphiphilic materials are reviewed, including an explanation of the mechanism of action, as well as inherent limitations of each technology. Perspectives on future research directions for the design of food processing surfaces with antifouling and/or fouling release properties are provided.
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Affiliation(s)
- Tiphaine Mérian
- Department of Food Science, University of Massachusetts, Amherst, Massachusetts 01003, USA
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