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Yao S, Zhang H, Zeng N, Ma H, He H, Jiang Y. Polarization Characterization of Porous Particles Based on DDA Simulation and Multi-Angle Polarization Measurements. MATERIALS (BASEL, SWITZERLAND) 2024; 17:1718. [PMID: 38673076 PMCID: PMC11051278 DOI: 10.3390/ma17081718] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/30/2023] [Revised: 04/05/2024] [Accepted: 04/07/2024] [Indexed: 04/28/2024]
Abstract
Porous suspended particles are hazardous to human health due to their strong absorption capacity for toxic substances. A fast, accurate, in situ and high-throughput method to characterize the microporous structure of porous particles has extensive application value. The polarization changes during the light scattering of aerosol particles are highly sensitive to their microstructural properties, such as pore size and porosity. In this study, we propose an overlapping sphere model based on the discrete dipole approximation (DDA) to calculate the polarization scattering characteristics of porous particles. By combining scattering calculations with multi-dimensional polarization indexes measured by a multi-angle polarized scattering vector detection system, we achieve the identification and classification of pore-type components in suspended particles. The maximum deviation based on multiple indexes is less than 0.16% for the proportion analysis of mixed particles. Simultaneously, we develop a quantitative inversion algorithm on pore size and porosity. The inversion results of the three porous polymer particles support the validity and feasibility of our method, where the inversion error of partial particles is less than 4% for pore size and less than 6% for porosity. The study demonstrates the potential of polarization measurements and index systems applied in characterizing the micropore structure of suspended particles.
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Affiliation(s)
- Shuan Yao
- Guangdong Research Center of Polarization Imaging and Measurement Engineering Technology, Shenzhen Key Laboratory for Minimal Invasive Medical Technologies, Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; (S.Y.); (H.Z.); (H.M.); (H.H.)
| | - Heng Zhang
- Guangdong Research Center of Polarization Imaging and Measurement Engineering Technology, Shenzhen Key Laboratory for Minimal Invasive Medical Technologies, Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; (S.Y.); (H.Z.); (H.M.); (H.H.)
| | - Nan Zeng
- Guangdong Research Center of Polarization Imaging and Measurement Engineering Technology, Shenzhen Key Laboratory for Minimal Invasive Medical Technologies, Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; (S.Y.); (H.Z.); (H.M.); (H.H.)
| | - Hui Ma
- Guangdong Research Center of Polarization Imaging and Measurement Engineering Technology, Shenzhen Key Laboratory for Minimal Invasive Medical Technologies, Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; (S.Y.); (H.Z.); (H.M.); (H.H.)
- Department of Physics, Tsinghua University, Beijing 100084, China
| | - Honghui He
- Guangdong Research Center of Polarization Imaging and Measurement Engineering Technology, Shenzhen Key Laboratory for Minimal Invasive Medical Technologies, Institute of Biopharmaceutical and Health Engineering, Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China; (S.Y.); (H.Z.); (H.M.); (H.H.)
| | - Yuelu Jiang
- School of Environment, Tsinghua University, Beijing 100084, China;
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Wen J, Li X, Huang Z, Zou Y. Method of calculating porosity based on M44 element images of the Mueller matrix. APPLIED OPTICS 2020; 59:E107-E111. [PMID: 32543520 DOI: 10.1364/ao.388225] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2020] [Accepted: 05/01/2020] [Indexed: 06/11/2023]
Abstract
As a drug carrier, the porosity of porous electrospun fiber can greatly affect its drug loading ability and stability. In this work, a method to calculate the porosity of porous electrospun fiber with a polarization micrograph is described. Different porosities of porous electrospun fibers were measured by scanning electron microscope images and transmission Mueller matrix M44 element images, respectively. Mueller matrix M44 element images were obtained after polarization micrograph and normalization. The pore areas of M44 images were extracted by region growing, and the contour parts were obtained by performing morphological operation on pore areas. The porosity calculated by the polarization microscope image is in good consistency with that measured by the scanning electron microscope. Our results will promote practical application of electrospun porous fibers in the early stage of screening a large number of porous materials in the biomedicine field.
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de Lima CM, Siqueira SMC, de Amorim AFV, Costa KBS, de Brito DHA, Ribeiro MENP, Ricardo NMPS, Chaibunditc C, Yeates SG, Ricardo NMPS. Effects of Polypropylene Glycol 400 (PPG400) on the Micellization and Gelation of Pluronic F127. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b01655] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Carolina Moura de Lima
- Department
of Organic and Inorganic Chemistry, Polymer Laboratory, Federal University of Ceará, CX 12200 Fortaleza, Brazil
| | | | | | - Kamilla B. S. Costa
- Department
of Organic and Inorganic Chemistry, Polymer Laboratory, Federal University of Ceará, CX 12200 Fortaleza, Brazil
| | - Débora H. A. de Brito
- Department
of Organic and Inorganic Chemistry, Polymer Laboratory, Federal University of Ceará, CX 12200 Fortaleza, Brazil
| | - Maria E. N. P. Ribeiro
- Department
of Organic and Inorganic Chemistry, Polymer Laboratory, Federal University of Ceará, CX 12200 Fortaleza, Brazil
| | - Nadja M. P. S. Ricardo
- Department
of Organic and Inorganic Chemistry, Polymer Laboratory, Federal University of Ceará, CX 12200 Fortaleza, Brazil
| | - Chiraphon Chaibunditc
- Department
of Materials Science and Technology, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90112, Thailand
| | - Stephen G. Yeates
- School
of Chemistry, University of Manchester, Manchester M13 9PL, U.K
| | - Nágila M. P. S. Ricardo
- Department
of Organic and Inorganic Chemistry, Polymer Laboratory, Federal University of Ceará, CX 12200 Fortaleza, Brazil
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Kato K, Nakamura H, Yamauchi Y, Nakanishi K, Tomita M. Preparation of mesoporous silica thin films by photocalcination method and their adsorption abilities for various proteins. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2014; 40:42-8. [DOI: 10.1016/j.msec.2014.03.045] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/30/2014] [Revised: 02/25/2014] [Accepted: 03/18/2014] [Indexed: 11/17/2022]
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Yang J, Zou L. Graphene films of controllable thickness as binder-free electrodes for high performance supercapacitors. Electrochim Acta 2014. [DOI: 10.1016/j.electacta.2014.03.077] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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