1
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Ethylene Glycol Based Polyurethane Shell Microcapsules for Textile Applications Releasing Medicinal Lavender and Responding to Mechanical Stimuli. Colloids Surf A Physicochem Eng Asp 2022. [DOI: 10.1016/j.colsurfa.2022.129888] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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2
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Gautam AK, Singh K. Preparation and characterization of fragrance by extracting the essential oils from different raw materials. J INDIAN CHEM SOC 2021. [DOI: 10.1016/j.jics.2021.100178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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3
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Tian Q, Zhou W, Cai Q, Ma G, Lian G. Concepts, processing, and recent developments in encapsulating essential oils. Chin J Chem Eng 2021. [DOI: 10.1016/j.cjche.2020.12.010] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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4
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Valle JAB, Valle RDCSC, Bierhalz ACK, Bezerra FM, Hernandez AL, Lis Arias MJ. Chitosan microcapsules: Methods of the production and use in the textile finishing. J Appl Polym Sci 2021. [DOI: 10.1002/app.50482] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
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5
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Jiang T, Jia Y, Sun H, Deng X, Tang D, Ren Y. Dielectrophoresis Response of Water-in-Oil-in-Water Double Emulsion Droplets with Singular or Dual Cores. MICROMACHINES 2020; 11:mi11121121. [PMID: 33348930 PMCID: PMC7766960 DOI: 10.3390/mi11121121] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 12/09/2020] [Accepted: 12/09/2020] [Indexed: 11/16/2022]
Abstract
Microfluidic technologies have enabled generation of exquisite multiple emulsion droplets, which have been used in many fields, including single-cell assays, micro-sized chemical reactions, and material syntheses. Electrical controlling is an important technique for droplet manipulation in microfluidic systems, but the dielectrophoretic behaviors of multiple emulsion droplets in electrical fields are rarely studied. Here, we report on the dielectrophoresis response of double emulsion droplets in AC electric fields in microfluidic channel. A core-shell model is utilized for analyzing the polarization of droplet interfaces and the overall dielectrophoresis (DEP) force. The water-in-oil-in-water droplets, generated by glass capillary devices, experience negative DEP at low field frequency. At high frequency, however, the polarity of DEP is tunable by adjusting droplet shell thickness or core conductivity. Then, the behavior of droplets with two inner cores is investigated, where the droplets undergo rotation before being repelled or attracted by the strong field area. This work should benefit a wide range of applications that require manipulation of double emulsion droplets by electric fields.
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Affiliation(s)
- Tianyi Jiang
- School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China; (T.J.); (Y.J.); (H.S.); (X.D.); (D.T.)
| | - Yankai Jia
- School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China; (T.J.); (Y.J.); (H.S.); (X.D.); (D.T.)
| | - Haizhen Sun
- School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China; (T.J.); (Y.J.); (H.S.); (X.D.); (D.T.)
| | - Xiaokang Deng
- School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China; (T.J.); (Y.J.); (H.S.); (X.D.); (D.T.)
| | - Dewei Tang
- School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China; (T.J.); (Y.J.); (H.S.); (X.D.); (D.T.)
| | - Yukun Ren
- School of Mechatronics Engineering, Harbin Institute of Technology, Harbin 150001, Heilongjiang, China; (T.J.); (Y.J.); (H.S.); (X.D.); (D.T.)
- State Key Laboratory of Robotics and System, Harbin Institute of Technology, West Da-Zhi Street 92, Harbin 150001, Heilongjiang, China
- Correspondence: ; Tel.: +86-0451-86418028; Fax: +86-0451-86402658
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6
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Alanezi AA, Neau SH, D’mello AP. Development and Application of a Modified Method to Determine the Encapsulation Efficiency of Proteins in Polymer Matrices. AAPS PharmSciTech 2020; 21:248. [PMID: 32875475 DOI: 10.1208/s12249-020-01789-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Accepted: 08/17/2020] [Indexed: 12/21/2022] Open
Abstract
A modified method to determine protein encapsulation efficiency in polymer matrices has been developed and applied to two proteins and two polymers to demonstrate its wide range of applicability. This study was pursued due to the wide variation in reported protein encapsulation efficiency of polymer-based microcapsules, even when the protein, the polymer, and the microcapsule manufacturing method were consistent. Hemoglobin (Hb) and bovine serum albumin (BSA) were chosen as model proteins and ethylcellulose and poly(lactic-co-glycolic acid) (PLGA) as model polymers. The polymer of the microcapsule was dissolved in dichloromethane/ethanol or dichloromethane/ethyl acetate for ethylcellulose or PLGA microcapsules, respectively. Liberated proteins were simultaneously precipitated, pelleted by centrifugation, isolated by decanting the polymer solution, redissolved in 10% w/v sodium dodecyl sulfate in 0.8 N sodium hydroxide, and quantified using a modified Lowry assay. Blank microcapsules and exogenously added proteins demonstrated ≥ 93.8% recovery of proteins. The mean encapsulation efficiency of ethylcellulose or PLGA microcapsules was 52.4 or 76.9% for Hb and 86.4 or 74.7% for BSA, respectively. This demonstrates the effective use of centrifugation and the importance of an appropriate cosolvent system in the measure of encapsulation efficiency where one solvent dissolves the polymer while the other solvent quantitatively precipitates the liberated protein. It is evident that an alkaline solution of sodium dodecyl sulfate is efficient at quantitatively dissolving precipitated proteins. Remediation of problems observed with current methods and high reproducibility suggest that this modified method is generally applicable to the measure of protein encapsulation efficiency of polymer microcapsules.
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7
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Shi GM, Low BT, Anderson K, Chung TS. Two-membrane air fresheners for continuous non-energized perfume delivery. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.03.032] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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8
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Li T, Teng D, Mao R, Hao Y, Wang X, Wang J. Recent progress in preparation and agricultural application of microcapsules. J Biomed Mater Res A 2019; 107:2371-2385. [PMID: 31161699 DOI: 10.1002/jbm.a.36739] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 05/27/2019] [Accepted: 05/30/2019] [Indexed: 12/11/2022]
Abstract
Recent advances in life science technology have prompted the need to develop microcapsule delivery systems that can encapsulate many different functional or active materials such as drugs, peptides, and live cells, etc. The encapsulation technology is now commonly used in medicine, agriculture, food, and other many fields. The application of biodegradable microcapsule systems can not only effectively prevent the degradation of core materials in the body or the biological environment, but also improve the bioavailability, control the release and prolong the halftime or storage of core active materials. Various wall materials, preparation methods, encapsulation processes, and release mechanisms are covered in this review, as well as several main factors including pH values, temperatures, particle sizes, and additives, which can strongly influence the encapsulation efficiency, the strength, and release of microcapsules. The improvement of coating materials, preparation techniques, and challenges are also highlighted, as well as application prospects.
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Affiliation(s)
- Ting Li
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing, People's Republic of China
| | - Da Teng
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing, People's Republic of China
| | - Ruoyu Mao
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing, People's Republic of China
| | - Ya Hao
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing, People's Republic of China
| | - Xiumin Wang
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing, People's Republic of China
| | - Jianhua Wang
- Gene Engineering Laboratory, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing, People's Republic of China
- Key Laboratory of Feed Biotechnology, Ministry of Agriculture and Rural Affairs, Beijing, People's Republic of China
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9
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Zhang Y, Ma J, Xu Q. Polyelectrolyte complex from cationized casein and sodium alginate for fragrance controlled release. Colloids Surf B Biointerfaces 2019; 178:439-444. [DOI: 10.1016/j.colsurfb.2019.03.017] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2019] [Accepted: 03/07/2019] [Indexed: 11/16/2022]
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10
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Chen X, Bhardwaj A, Sharifah NSI, Zhang L, Man SM, Andriani Y, Tan WS. Designing nanoporosity in a swollen polymer for the controlled release of a highly volatile fragrance. FLAVOUR FRAG J 2018. [DOI: 10.1002/ffj.3484] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- Xinwei Chen
- Institute of Materials Research and EngineeringAgency of Science, Technology and Research Singapore
| | - Ankit Bhardwaj
- Institute of Materials Research and EngineeringAgency of Science, Technology and Research Singapore
- Centre for Nanoscience and NanotechnologyJamia Millia Islamia New Delhi India
| | - Nursyahirah Syed Isha Sharifah
- Institute of Materials Research and EngineeringAgency of Science, Technology and Research Singapore
- Singapore Institute of Technology Singapore Singapore
- Technical University of Munich Germany
| | - Liling Zhang
- Institute of High Performance ComputingAgency of Science, Technology and Research Singapore
| | - Shu Mei Man
- Institute of Materials Research and EngineeringAgency of Science, Technology and Research Singapore
| | - Yosephine Andriani
- Institute of Materials Research and EngineeringAgency of Science, Technology and Research Singapore
| | - Wui Siew Tan
- Institute of Materials Research and EngineeringAgency of Science, Technology and Research Singapore
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11
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Cui G, Wang J, Wang X, Li W, Zhang X. Preparation and Properties of Narrowly Dispersed Polyurethane Nanocapsules Containing Essential Oil via Phase Inversion Emulsification. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:10799-10807. [PMID: 30256627 DOI: 10.1021/acs.jafc.8b02406] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Narrowly dispersed polyurethane (PU) nanocapsules containing lavender essential oil (LO) were fabricated by polyaddition of toluene diisocyanate (TDI) trimer with polyol using a phase inversion emulsification technique. The particle size distribution (PSD), surface morphology, structure, encapsulation parameters, release properties, and thermal stability of nanocapsules have been characterized using a laser particle size analyzer (LPSA), scanning electron microscopy (SEM), transmission electron microscopy (TEM), Fourier-transform infrared spectrum (FTIR), and thermogravimetric analysis (TGA), respectively. Experimental results demonstrate that the nanocapsules have a smaller size (ca. 268 nm), regular sphericity, uniform particle size (polydispersity index, PDI = 0.078), clear core-shell structure, and smooth surface. When the ratio of LO to TDI trimer is 5:10, the yield, encapsulation efficiency, and loading capacity of the nanocapsules can reach a maximum of 70.7%, 98.6%, and 64.8%, respectively. Furthermore, the release experiments showed that the cumulative release of LO from nanocapsules was only about 17% at room temperature and about 32% at 50 °C even after 20 days.
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Affiliation(s)
- Guangwen Cui
- Tianjin Key Laboratory of Advanced Fibers and Energy Storage, School of Materials Science and Engineering , Tianjin Polytechnic University , Tianjin 300387 , P. R. China
| | - Jianping Wang
- Tianjin Key Laboratory of Advanced Fibers and Energy Storage, School of Materials Science and Engineering , Tianjin Polytechnic University , Tianjin 300387 , P. R. China
| | - Xuechen Wang
- Tianjin Key Laboratory of Advanced Fibers and Energy Storage, School of Materials Science and Engineering , Tianjin Polytechnic University , Tianjin 300387 , P. R. China
| | - Wei Li
- Tianjin Key Laboratory of Advanced Fibers and Energy Storage, School of Materials Science and Engineering , Tianjin Polytechnic University , Tianjin 300387 , P. R. China
| | - Xingxiang Zhang
- Tianjin Key Laboratory of Advanced Fibers and Energy Storage, School of Materials Science and Engineering , Tianjin Polytechnic University , Tianjin 300387 , P. R. China
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12
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Synthesis of polyvinyl alcohol/cellulose nanofibril hybrid aerogel microspheres and their use as oil/solvent superabsorbents. Carbohydr Polym 2016; 148:300-8. [DOI: 10.1016/j.carbpol.2016.04.065] [Citation(s) in RCA: 76] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2016] [Revised: 03/28/2016] [Accepted: 04/14/2016] [Indexed: 11/23/2022]
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13
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Llatje CP, Gumi T, Valls RG. Emerging application of vanillin microcapsules. PHYSICAL SCIENCES REVIEWS 2016. [DOI: 10.1515/psr-2015-0004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
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14
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Zhao D, Jiao X, Zhang M, Ye K, Shi X, Lu X, Qiu G, Shea KJ. Preparation of high encapsulation efficiency fragrance microcapsules and their application in textiles. RSC Adv 2016. [DOI: 10.1039/c6ra16030a] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Poly(1,4-butanediol dimethacrylate) (PBDDMA) microcapsules with PBDDMA as the shell and dementholized peppermint oil (DPO) fragrance as the core material have been synthesized through a novel interfacial free-radical polymerization.
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Affiliation(s)
- Di Zhao
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- China
| | - Xin Jiao
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- China
| | - Miaomiao Zhang
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- China
| | - Kai Ye
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- China
| | - Xiaodi Shi
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- China
| | - Xihua Lu
- College of Chemistry
- Chemical Engineering and Biotechnology
- Donghua University
- Shanghai 201620
- China
| | - Gao Qiu
- State Key Laboratory for Modification of Chemical Fibers and Polymer Materials
- College of Materials Science and Engineering
- Donghua University
- Shanghai 201620
- China
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15
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Bao L, Zhang F, Chen T, Cao J, Chen Y, Bai Y. Novel submicron poly(urea-formaldehyde) and essence of jasmine microcapsules with enhanced sustained release. FLAVOUR FRAG J 2015. [DOI: 10.1002/ffj.3263] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Affiliation(s)
- Lin Bao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 China
| | - Fangfang Zhang
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 China
| | - Tongyun Chen
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 China
| | - Jigang Cao
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 China
| | - Yashao Chen
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 China
| | - Yunshan Bai
- Key Laboratory of Applied Surface and Colloid Chemistry, Ministry of Education, School of Chemistry and Chemical Engineering; Shaanxi Normal University; Xi'an 710062 China
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16
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Liu C, Liang B, Shi G, Li Z, Zheng X, Huang Y, Lin L. Preparation and characteristics of nanocapsules containing essential oil for textile application. FLAVOUR FRAG J 2015. [DOI: 10.1002/ffj.3245] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Cong Liu
- School of Chemistry and Environment; South China Normal University; Guangzhou 510006 People's Republic of China
- Production-Education-Research Base of New Polymer Materials and Postgraduate Students’ Innovation Training of Guangdong Higher Education Institutes; South China Normal University; Guangzhou 510006 People's Republic of China
| | - Baijun Liang
- School of Chemistry and Environment; South China Normal University; Guangzhou 510006 People's Republic of China
- Production-Education-Research Base of New Polymer Materials and Postgraduate Students’ Innovation Training of Guangdong Higher Education Institutes; South China Normal University; Guangzhou 510006 People's Republic of China
| | - Guang Shi
- School of Chemistry and Environment; South China Normal University; Guangzhou 510006 People's Republic of China
- Production-Education-Research Base of New Polymer Materials and Postgraduate Students’ Innovation Training of Guangdong Higher Education Institutes; South China Normal University; Guangzhou 510006 People's Republic of China
| | - Zhicheng Li
- School of Chemistry and Environment; South China Normal University; Guangzhou 510006 People's Republic of China
- Production-Education-Research Base of New Polymer Materials and Postgraduate Students’ Innovation Training of Guangdong Higher Education Institutes; South China Normal University; Guangzhou 510006 People's Republic of China
| | - Xubin Zheng
- School of Chemistry and Environment; South China Normal University; Guangzhou 510006 People's Republic of China
- Production-Education-Research Base of New Polymer Materials and Postgraduate Students’ Innovation Training of Guangdong Higher Education Institutes; South China Normal University; Guangzhou 510006 People's Republic of China
| | - Yang Huang
- Guang Zhou Daiwen Polymer Material CO, LTD; Guangzhou 511493 People's Republic of China
| | - Li Lin
- Guang Zhou Daiwen Polymer Material CO, LTD; Guangzhou 511493 People's Republic of China
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17
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18
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Jing H, Weijun D, Liqin L, Zuobing X. Synthesis and application of polyacrylate nanocapsules loaded with lilial. J Appl Polym Sci 2014. [DOI: 10.1002/app.40182] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Hu Jing
- School of Perfume and Aroma Technology; Shanghai Institute of Technology; Shanghai 201418 People's Republic of China
| | - Deng Weijun
- School of Perfume and Aroma Technology; Shanghai Institute of Technology; Shanghai 201418 People's Republic of China
| | - Liu Liqin
- School of Perfume and Aroma Technology; Shanghai Institute of Technology; Shanghai 201418 People's Republic of China
| | - Xiao Zuobing
- School of Perfume and Aroma Technology; Shanghai Institute of Technology; Shanghai 201418 People's Republic of China
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19
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Datta SS, Abbaspourrad A, Amstad E, Fan J, Kim SH, Romanowsky M, Shum HC, Sun B, Utada AS, Windbergs M, Zhou S, Weitz DA. 25th anniversary article: double emulsion templated solid microcapsules: mechanics and controlled release. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:2205-18. [PMID: 24615984 DOI: 10.1002/adma.201305119] [Citation(s) in RCA: 151] [Impact Index Per Article: 15.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2013] [Revised: 01/02/2014] [Indexed: 05/20/2023]
Abstract
How droplet microfluidics can be used to fabricate solid-shelled microcapsules having precisely controlled release behavior is described. Glass capillary devices enable the production of monodisperse double emulsion drops, which can then be used as templates for microcapsule formation. The exquisite control afforded by microfluidics can be used to tune the compositions and geometrical characteristics of the microcapsules with exceptional precision. The use of this approach to fabricate microcapsules that only release their contents when exposed to a specific stimulus--such as a change in temperature, exposure to light, a change in the chemical environment, or an external stress--only after a prescribed time delay, and at a prescribed rate is reviewed.
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Affiliation(s)
- Sujit S Datta
- Department of Physics and SEAS, Harvard University, Cambridge, MA, 02138, USA
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20
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Abbaspourrad A, Carroll NJ, Kim SH, Weitz DA. Polymer Microcapsules with Programmable Active Release. J Am Chem Soc 2013; 135:7744-50. [DOI: 10.1021/ja401960f] [Citation(s) in RCA: 137] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Alireza Abbaspourrad
- School of Engineering and Applied
Sciences, Department of Physics, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Nick J. Carroll
- School of Engineering and Applied
Sciences, Department of Physics, Harvard University, Cambridge, Massachusetts 02138, United States
| | - Shin-Hyun Kim
- School of Engineering and Applied
Sciences, Department of Physics, Harvard University, Cambridge, Massachusetts 02138, United States
- Department of Chemical and Biomolecular
Engineering, KAIST, Daejeon, South Korea
| | - David A. Weitz
- School of Engineering and Applied
Sciences, Department of Physics, Harvard University, Cambridge, Massachusetts 02138, United States
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21
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Çay A, Mohsen Miraftab. Properties of electrospun poly(vinyl alcohol) hydrogel nanofibers crosslinked with 1,2,3,4-butanetetracarboxylic acid. J Appl Polym Sci 2013. [DOI: 10.1002/app.39036] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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22
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Stroescu M, Stoica-Guzun A, Jipa IM. Vanillin release from poly(vinyl alcohol)-bacterial cellulose mono and multilayer films. J FOOD ENG 2013. [DOI: 10.1016/j.jfoodeng.2012.08.023] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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23
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Grinberg O, Shimanovich U, Gedanken A. Encapsulating bioactive materials in sonochemically produced micro- and nano-spheres. J Mater Chem B 2013; 1:595-605. [DOI: 10.1039/c2tb00006g] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
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24
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Tzhayik O, Cavaco-Paulo A, Gedanken A. Fragrance release profile from sonochemically prepared protein microsphere containers. ULTRASONICS SONOCHEMISTRY 2012; 19:858-863. [PMID: 22273733 DOI: 10.1016/j.ultsonch.2011.12.023] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/15/2011] [Revised: 12/29/2011] [Accepted: 12/30/2011] [Indexed: 05/31/2023]
Abstract
Protein microspheres have been prepared by sonicating a mixture of pure fragrant oil (amyl acetate (AA)) with an aqueous protein (bovine serum albumin) solution. The prepared protein spheres are nano- to micrometer sized with an encapsulation efficiency of approx. 97% for the AA present on the surface and inside the BSA capsule. Containers were found stable for more than 6 months when stored sealed at 4°C and 20°C. For the release profile measurements, we used a simple, automated and direct method. We continuously weighed the encapsulated microspheres and measured the evaporation rates. The release profiles at 15°C and 25°C display two different evaporation rates. The higher rate is the sum of a few evaporation rates, including water molecules, while the slower rate is due to the evaporation of pure AA. The changes in the evaporation rates occur upon the collapse of the container. This event coincides with the full evaporation of water. For morphological characterization we dyed the AA with Nile red, and used SEM, ESEM, Cryo-SEM, light microscopy, and confocal laser scanning microscopy measurements.
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Affiliation(s)
- Oshrat Tzhayik
- Department of Chemistry and Kanbar Laboratory for Nanomaterials, Bar-Ilan University Center for Advanced Materials and Nanotechnology, Bar-Ilan University, Ramat-Gan 52900, Israel
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25
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Mercadé-Prieto R, Allen R, York D, Preece JA, Goodwin TE, Zhang Z. Determination of the shell permeability of microcapsules with a core of oil-based active ingredient. J Microencapsul 2012; 29:463-74. [DOI: 10.3109/02652048.2012.658444] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
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26
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Peña B, de Ménorval LC, Garcia-Valls R, Gumí T. Characterization of polysulfone and polysulfone/vanillin microcapsules by 1H NMR spectroscopy, solid-state 13C CP/MAS-NMR spectroscopy, and N2 adsorption-desorption analyses. ACS APPLIED MATERIALS & INTERFACES 2011; 3:4420-4430. [PMID: 22008282 DOI: 10.1021/am201092r] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
Textile detergent and softener industries have incorporated perfume microencapsulation technology to improve their products. Perfume encapsulation allows perfume protection until use and provides a long-lasting fragrance release. But, certain industrial microcapsules show low encapsulation capacity and low material stability. Polysulfone capsules have been already proposed to solve these drawbacks. Among them, PSf/Vanillin capsules were considered as a desirable system. They present both good material stability and high encapsulation capacity. However, several factors such as the final location of the perfume in the polymeric matrix, the aggregation state that it has in the capsule and its interaction with the capsule components have not been studied yet. These factors can provide vast information about the capsule performance and its improvement. With the aim to characterize these parameters, the physical and chemical properties of PSf/Vanillin capsules have been investigated by nuclear magnetic resonance (NMR) spectroscopy, scanning electron microscopy (SEM), atomic force microscopy (AFM), and N(2) adsorption-desorption measurements. AFM micrograph and N(2) isotherms confirm that the presence of vanillin modify the physical structure of PSf/Vanillin microcapsules as it is trapped in the capsule porosity. NMR results show that vanillin is present in solid state in PSf/Vanillin microcapsules.
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Affiliation(s)
- Brisa Peña
- Departament d'Enginyeria Química, Universitat Rovira i Virgili, Av. Països Catalans, 26, 43007 Tarragona, Spain
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Preparation and characterization of photochromic poly(methyl methacrylate) and ethyl cellulose nanocapsules containing a spirooxazine dye. J Photochem Photobiol A Chem 2011. [DOI: 10.1016/j.jphotochem.2011.06.011] [Citation(s) in RCA: 44] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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