1
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Wu CJ, Zhang WF, Dai SY, Liu S, Fan W, Mao J, Zhang QD, Chai GB, Shi QZ, Liu YY, Zhang SS, Xie JP. Copper(I)-Iodide Clusters as Carriers for Regulating and Visualizing Release of Aroma Molecules. ACS APPLIED MATERIALS & INTERFACES 2023; 15:5954-5962. [PMID: 36661841 DOI: 10.1021/acsami.2c21009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Achieving the controlled release of functional substances is indispensable in many aspects of life. Especially for the aroma molecules, their effective delivery of flavor and fragrance is challenging. Here, selected pyridines, as highly volatile odorants, were individually coordinated with copper(I) iodide (CuII) via a straightforward one-pot synthesis method, rapidly forming pure or even crystalline CuII cluster-based profragrances at room temperature. The obtained profragrances enabled the stable and high loading of volatile fragrances under ambient conditions and guaranteed their long-lasting release during heating. Furthermore, the intrinsic emission luminescence of these solid-state profragrances decayed along with the aroma release, which can serve as an additional indicator for monitoring the delivery process. This research sets a precedent for using CuII clusters as dual-purpose release agents and greatly expands their potential applications.
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Affiliation(s)
- Chao-Jun Wu
- Flavour Science Research Center of Zhengzhou University, Zhengzhou University, Kexue Avenue 100, Zhengzhou, Henan450001, P. R. China
- Zhengzhou Tobacco Research Institute of CNTC, Fengyang Road, Zhengzhou, Henan450001, P. R. China
- College of Chemistry, Zhengzhou University, Kexue Avenue 100, Zhengzhou, Henan450001, P. R. China
| | - Wen-Fen Zhang
- Zhengzhou Tobacco Research Institute of CNTC, Fengyang Road, Zhengzhou, Henan450001, P. R. China
- College of Chemistry, Zhengzhou University, Kexue Avenue 100, Zhengzhou, Henan450001, P. R. China
| | - Shu-Yu Dai
- College of Chemistry, Zhengzhou University, Kexue Avenue 100, Zhengzhou, Henan450001, P. R. China
| | - Shuo Liu
- School of Materials Science and Engineering, Zhengzhou University, Zhengzhou450001, P. R. China
| | - Wu Fan
- Zhengzhou Tobacco Research Institute of CNTC, Fengyang Road, Zhengzhou, Henan450001, P. R. China
| | - Jian Mao
- Zhengzhou Tobacco Research Institute of CNTC, Fengyang Road, Zhengzhou, Henan450001, P. R. China
| | - Qi-Dong Zhang
- Zhengzhou Tobacco Research Institute of CNTC, Fengyang Road, Zhengzhou, Henan450001, P. R. China
| | - Guo-Bi Chai
- Zhengzhou Tobacco Research Institute of CNTC, Fengyang Road, Zhengzhou, Henan450001, P. R. China
| | - Qing-Zhao Shi
- Zhengzhou Tobacco Research Institute of CNTC, Fengyang Road, Zhengzhou, Henan450001, P. R. China
| | - Yuan-Yuan Liu
- Center of Advanced Analysis and Gene Sequencing, Zhengzhou University, Kexue Avenue 100, Zhengzhou, Henan450001, P. R. China
| | - Shu-Sheng Zhang
- Center of Advanced Analysis and Gene Sequencing, Zhengzhou University, Kexue Avenue 100, Zhengzhou, Henan450001, P. R. China
| | - Jian-Ping Xie
- Flavour Science Research Center of Zhengzhou University, Zhengzhou University, Kexue Avenue 100, Zhengzhou, Henan450001, P. R. China
- Zhengzhou Tobacco Research Institute of CNTC, Fengyang Road, Zhengzhou, Henan450001, P. R. China
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2
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Xiao Z, Sun P, Liu H, Zhao Q, Niu Y, Zhao D. Stimulus responsive microcapsules and their aromatic applications. J Control Release 2022; 351:198-214. [PMID: 36122896 DOI: 10.1016/j.jconrel.2022.09.017] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/05/2022] [Revised: 09/09/2022] [Accepted: 09/11/2022] [Indexed: 10/31/2022]
Abstract
Fragrances and essential oils are promising for a wide range of applications due to their pleasant odors and diverse effects. However, direct addition to consumer products has the disadvantages of short retention time and easy deterioration of odor. At the same time, releasing a large amount of odor in a short time may be an unpleasant experience, which severely limits the practical application of aromatic substances. Microencapsulation perfectly solves these problems. Stimuli-responsive microcapsules, which combine environmental stimulation with microencapsulation, can not only effectively prevent the rapid decomposition and evaporation of aroma components, but also realize the "on-off" intelligent release of aroma substances to environmental changes, which have great promise in the field of fragrances. In this review, the application of stimuli-responsive microcapsules in fragrances is highlighted. Firstly, various encapsulation materials used to prepare stimuli-responsive aromatic microcapsules are described, mainly including some natural polymers, synthetic polymers, and inorganic materials. Subsequently, there is a detailed description of the common release mechanisms of stimuli-responsive aromatic microcapsules are described in detail. Finally, the application and future research directions are given for stimuli-responsive aromatic microcapsules in new textiles, food, paper, and leather.
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Affiliation(s)
- Zuobing Xiao
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, No. 100 Haiquan Road, Shanghai 201418, China; School of Agriculture and Biology, Shanghai Jiaotong University, No. 800 Dongchuan Road, Shanghai 200240, China
| | - Pingli Sun
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, No. 100 Haiquan Road, Shanghai 201418, China
| | - Huiqin Liu
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, No. 100 Haiquan Road, Shanghai 201418, China
| | - Qixuan Zhao
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, No. 100 Haiquan Road, Shanghai 201418, China
| | - Yunwei Niu
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, No. 100 Haiquan Road, Shanghai 201418, China
| | - Di Zhao
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, No. 100 Haiquan Road, Shanghai 201418, China.
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3
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Jerri HA, Torres-Díaz I, Zhang L, Impellizzeri N, Benczédi D, Bevan MA. Surface Morphology-Enhanced Delivery of Bioinspired Eco-Friendly Microcapsules. ACS APPLIED MATERIALS & INTERFACES 2022; 14:41499-41507. [PMID: 36041180 DOI: 10.1021/acsami.2c08305] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
We report the development of novel mineralized protein microcapsules to address critical challenges in the environmental impact and performance of consumer, pharmaceutical, agrochemical, cosmetic, and paint products. We designed environment-friendly capsules composed of proteins and biominerals as an alternative to solid microplastic particles or core-shell capsules made of nonbiodegradable synthetic polymeric resins. We synthesized mineralized capsule surface morphologies to mimic the features of natural pollens, which dramatically improved the deposition of high value-added fragrance chemicals on target substrates in realistic application conditions. A mechanistic model accurately captures the observed enhanced deposition behavior and shows how surface features generate an adhesive torque that resists shear detachment. Mineralized protein capsule performance is shown to depend both on material selection that determines van der Waals attraction and on capsule-substrate energy landscapes as parameterized by a geometric taxonomy for surface morphologies. These findings have broad implications for engineering multifunctional environmentally friendly delivery systems.
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Affiliation(s)
- Huda A Jerri
- R&D Division, Firmenich Inc., Plainsboro, New Jersey 08536, United States
| | - Isaac Torres-Díaz
- Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Lechuan Zhang
- Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | | | - Daniel Benczédi
- Corporate Research Division, Firmenich SA., 1242 Satigny, Switzerland
| | - Michael A Bevan
- Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
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4
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Trachsel A, Paret N, Berthier D, Herrmann A. Light‐Induced Fragrance Release from 2‐Oxoacetates: Impact of Compound Mixtures on the Efficiency of the Norrish Type II Photoreaction in Solution and in Encapsulation Systems. CHEMPHOTOCHEM 2022. [DOI: 10.1002/cptc.202200045] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Alain Trachsel
- Firmenich SA Division Recherche & Développement SWITZERLAND
| | - Nicolas Paret
- Firmenich SA Division Recherche & Développement SWITZERLAND
| | | | - Andreas Herrmann
- Firmenich SA Division Recherche et Développement Rue de la Bergère 7 1242 Satigny SWITZERLAND
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5
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Liu M, Yan C, Han J, Guo Z, Zhu W, Xiao Z, Wu Y, Huang J. pH‐activated
polymeric profragrances for
dual‐controllable
perfume release. AIChE J 2021. [DOI: 10.1002/aic.17265] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023]
Affiliation(s)
- Ming Liu
- Shanghai Key Laboratory of Functional Materials Chemistry, Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering East China University of Science and Technology Shanghai China
| | - Chenxu Yan
- Shanghai Key Laboratory of Functional Materials Chemistry, Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering East China University of Science and Technology Shanghai China
| | - Jianwei Han
- Shanghai Key Laboratory of Functional Materials Chemistry, Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering East China University of Science and Technology Shanghai China
| | - Zhiqian Guo
- Shanghai Key Laboratory of Functional Materials Chemistry, Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering East China University of Science and Technology Shanghai China
| | - Wei‐Hong Zhu
- Shanghai Key Laboratory of Functional Materials Chemistry, Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, Frontiers Science Center for Materiobiology and Dynamic Chemistry, School of Chemistry and Molecular Engineering East China University of Science and Technology Shanghai China
| | - Zuobing Xiao
- School of Perfume and Aroma Technology Shanghai Institute of Technology Shanghai China
| | - Yue Wu
- Apple Flavor & Fragrance Group Co., Ltd. Shanghai China
| | - Jian Huang
- Apple Flavor & Fragrance Group Co., Ltd. Shanghai China
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6
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Lamboley S, Trachsel A, Herrmann A. Polystyrene‐Based 2‐Oxoacetates for the Light‐Induced Release of Fragrances Under Realistic Application Conditions. MACROMOL CHEM PHYS 2020. [DOI: 10.1002/macp.202000196] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
- Serge Lamboley
- Firmenich SA Division Recherche et Développement Route des Jeunes 1, B. P. 239 CH‐1211 Genève 8 Switzerland
| | - Alain Trachsel
- Firmenich SA Division Recherche et Développement Route des Jeunes 1, B. P. 239 CH‐1211 Genève 8 Switzerland
| | - Andreas Herrmann
- Firmenich SA Division Recherche et Développement Route des Jeunes 1, B. P. 239 CH‐1211 Genève 8 Switzerland
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7
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Wang Y, Cheng Q, Liu J, Tariq Z, Zheng Z, Li G, Kaplan DL, Wang X. Tuning Microcapsule Shell Thickness and Structure with Silk Fibroin and Nanoparticles for Sustained Release. ACS Biomater Sci Eng 2020; 6:4583-4594. [PMID: 33455196 DOI: 10.1021/acsbiomaterials.0c00835] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Microcapsules have attracted widespread interest for their unique properties in encapsulation, protection, and separation of active ingredients from the surrounding environment. However, microcapsule carriers with controllable shell thickness, permeability, good mechanical properties, and thermostability are challenging to obtain. Herein, robust and versatile composite microcapsules were fabricated using SiO2 nanoparticle-stabilized (Pickering) oil emulsions as core templates, while silk fibroin (SF) was assembled at the oil/water interface. This process resulted in the formation of physically and chemically stable microcapsules with a thick (∼800 nm) shell that protected the encapsulated ingredient from high shear forces and high temperatures during spray-drying. SiO2 nanoparticles were randomly distributed in the shell matrix after preparation, making the microcapsules mechanically robust (4.48 times higher than control samples prepared using surfactant Tween 80 instead of the SiO2 nanoparticles), as well as thermostable (retained shape to 900 °C). The microcapsules displayed tunable drug release by adjusting the SF content in the shell. Under optimal conditions (weight ratio of SiO2/SF = 7:10, corn oil content about 55 wt %), a model drug (curcumin) was encapsulated in the SF microcapsules with an encapsulation efficiency up to 95%. The in vitro drug release from these SF microcapsules lasted longer than control microcapsules, demonstrating the capability of these novel microcapsules in sustaining drug release.
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Affiliation(s)
- Yongfeng Wang
- National Engineering Laboratory for Modern Silk, Soochow University, 199 Renai Road, Suzhou Industrial Park, Suzhou, Jiangsu 215123, P. R. China
| | - Qingqing Cheng
- Suzhou Institute of Nano-Tech and Nano-Bionics, Chinese Academy of Sciences, Suzhou 215123, P. R. China
| | - Jian Liu
- National Engineering Laboratory for Modern Silk, Soochow University, 199 Renai Road, Suzhou Industrial Park, Suzhou, Jiangsu 215123, P. R. China
| | - Zeeshan Tariq
- National Engineering Laboratory for Modern Silk, Soochow University, 199 Renai Road, Suzhou Industrial Park, Suzhou, Jiangsu 215123, P. R. China
| | - Zhaozhu Zheng
- National Engineering Laboratory for Modern Silk, Soochow University, 199 Renai Road, Suzhou Industrial Park, Suzhou, Jiangsu 215123, P. R. China
| | - Gang Li
- National Engineering Laboratory for Modern Silk, Soochow University, 199 Renai Road, Suzhou Industrial Park, Suzhou, Jiangsu 215123, P. R. China
| | - David L Kaplan
- Department of Biomedical Engineering, Tufts University, Medford, Massachusetts 02155, United States
| | - Xiaoqin Wang
- National Engineering Laboratory for Modern Silk, Soochow University, 199 Renai Road, Suzhou Industrial Park, Suzhou, Jiangsu 215123, P. R. China
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8
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Li Z, Zhang J, Chen H, Huang X, Huang D, Luo F, Wang J, Guo L, Qiu B, Lin Z. Electrochemiluminescence Biosensor for Hyaluronidase Based on the Ru(bpy) 32+ Doped SiO 2 Nanoparticles Embedded in the Hydrogel Fabricated by Hyaluronic Acid and Polyethylenimine. ACS APPLIED BIO MATERIALS 2020; 3:1158-1164. [PMID: 35019317 DOI: 10.1021/acsabm.9b01082] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
Hyaluronidase (HAase), a specific enzyme of hyaluronic acid (HA), has been reported as a potential tumor biomarker in recent years. Hence, developing some simple, rapid, and sensitive methods for HAase assay is necessary. In this work, a simple and sensitive biosensor constructed by a reliable controlled release system and a mature electrochemiluminescence (ECL) analytical technique has been devised for the quantification of HAase with high efficiency and selectivity. Tris (2,2'-bipyridyl) ruthenium(II) chloride hexahydrate doped SiO2 nanoparticles (Ru@SiO2 NPs), as ECL signal probes, were trapped in the hydrogel fabricated by HA and polyethylenimine evenly and steadily. When HAase existed, the hydrogel was decomposed by HAase, and the Ru@SiO2 NPs escaped from the hydrogel into the supernate. The ECL signal produced from the supernate can be detected and used to characterize HAase concentration. The result showed a good linear relationship between ECL intensity, and HAase concentration ranged from 2 to 60 U/mL and the limit of detection was 2 U/mL. The developed controlled release ECL biosensor has been used for HAase quantification in urine samples with satisfactory results.
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Affiliation(s)
| | | | - Huixing Chen
- Department of Hepatobiliary Surgery, Fujian Medical University Union Hospital, Fuzhou, Fujian 350000, China
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9
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Gasparini G, Semaoui S, Augugliaro J, Boschung A, Berthier D, Seyfried M, Begnaud F. Quantification of Residual Perfume by Py-GC-MS in Fragrance Encapsulate Polymeric Materials Intended for Biodegradation Tests. Molecules 2020; 25:E718. [PMID: 32046014 PMCID: PMC7037821 DOI: 10.3390/molecules25030718] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 01/30/2020] [Accepted: 01/31/2020] [Indexed: 12/13/2022] Open
Abstract
Perfume encapsulates are widely used in commercial products to control the kinetic release of odorant molecules, increase storage stability and/or improve deposition on different substrates. In most of the cases, they consist of core-shell polymeric microcapsules that contain fragrance molecules. A current challenge is to design and produce polymeric materials for encapsulation that are both resistant and non-persistent. The selection of such eco-friendly formulations is linked to a deep understanding of the polymeric material used for encapsulation and its biodegradation profile. To collect this information, pure samples of capsule shells are needed. In this article we present an innovative quantification method for residual volatiles based on pyrolysis-GC-MS to enable validation of sample quality prior to further testing. The presented analytical method also led to the development of a robust and comprehensive purification protocol for polymers from commercial samples. Standard techniques are not suited for this kind of measurement due to the non-covalent embedding of volatiles in the 3D structure of the polymers. We demonstrated the confounding impact of residual volatiles on the estimated biodegradability of fragrance encapsulates.
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Affiliation(s)
- Giulio Gasparini
- Firmenich SA, Corporate R&D Division, Route des Jeunes 1, 1211 Genève, Switzerland
| | - Sarah Semaoui
- Firmenich SA, Corporate R&D Division, Route des Jeunes 1, 1211 Genève, Switzerland
- Union Française du Commerce Chimique, 75000 Paris, France
| | - Jessica Augugliaro
- Firmenich SA, Corporate R&D Division, Route des Jeunes 1, 1211 Genève, Switzerland
| | - Alain Boschung
- Firmenich SA, Corporate R&D Division, Route des Jeunes 1, 1211 Genève, Switzerland
| | - Damien Berthier
- Firmenich SA, Corporate R&D Division, Route des Jeunes 1, 1211 Genève, Switzerland
| | - Markus Seyfried
- Firmenich SA, Corporate R&D Division, Route des Jeunes 1, 1211 Genève, Switzerland
| | - Frédéric Begnaud
- Firmenich SA, Corporate R&D Division, Route des Jeunes 1, 1211 Genève, Switzerland
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10
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Thorne MF, Simkovic F, Slater AG. Production of monodisperse polyurea microcapsules using microfluidics. Sci Rep 2019; 9:17983. [PMID: 31784621 PMCID: PMC6884639 DOI: 10.1038/s41598-019-54512-4] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/02/2019] [Accepted: 11/13/2019] [Indexed: 12/29/2022] Open
Abstract
Methods to make microcapsules - used in a broad range of healthcare and energy applications - currently suffer from poor size control, limiting the establishment of size/property relationships. Here, we use microfluidics to produce monodisperse polyurea microcapsules (PUMC) with a limonene core. Using varied flow rates and a commercial glass chip, we produce capsules with mean diameters of 27, 30, 32, 34, and 35 µm, achieving narrow capsule size distributions of ±2 µm for each size. We describe an automated method of sizing droplets as they are produced using video recording and custom Python code. The sustainable generation of such size-controlled PUMCs, potential replacements for commercial encapsulated systems, will allow new insights into the effect of particle size on performance.
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Affiliation(s)
- Michael F Thorne
- Department of Chemistry and Materials Innovation Factory, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK
| | - Felix Simkovic
- Institute of Integrative Biology, University of Liverpool, Liverpool, L69 7ZB, UK
| | - Anna G Slater
- Department of Chemistry and Materials Innovation Factory, University of Liverpool, Crown Street, Liverpool, L69 7ZD, UK.
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11
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DeMella KC, Raghavan SR. Catalyst-Loaded Capsules that Spontaneously Inflate and Violently Eject their Core. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:13718-13726. [PMID: 31603331 DOI: 10.1021/acs.langmuir.9b02174] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
We present a design for polymer capsules that exhibit a range of unusual autonomous behaviors when exposed to a chemical fuel. The capsules have a physically gelled core (alginate-Ca2+) loaded with catalytic (silver) particles and a shell composed of a chemically cross-linked gel. In the presence of the fuel (H2O2), a catalytic reaction occurs, which generates oxygen (O2) gas. The gas collects in a zone between the core and the shell, and the resulting gas pressure causes the elastic shell to stretch. This makes the capsule inflate in a process reminiscent of a swelling pufferfish. As the capsule inflates, the polymer chains in the shell continue to stretch until a breaking point is reached, whereupon the shell ruptures. Three rupture modes are documented: gentle, moderate, and violent. The latter involves the gelled core being forcefully ejected out of the shell in a manner similar to the ejection of needles out of nematocysts on jellyfish. The extent and duration of inflation can be tuned by altering the core and shell composition; for example, shells that are more densely cross-linked swell less and rupture faster. Also, instead of a catalytic reaction, capsule inflation can be achieved by combining reactants, one in the capsule and the other in the external solution, that together generate a different gas (e.g., CO2).
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Affiliation(s)
- Kerry C DeMella
- Department of Chemistry & Biochemistry , University of Maryland , College Park , Maryland 20742 , United States
| | - Srinivasa R Raghavan
- Department of Chemistry & Biochemistry , University of Maryland , College Park , Maryland 20742 , United States
- Department of Chemical & Biomolecular Engineering , University of Maryland , College Park , Maryland 20742 , United States
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12
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Liu M, Han J, Yan C, Guo Z, Xiao Z, Zhu WH. Photocontrollable Release with Coumarin-Based Profragrances. ACS APPLIED BIO MATERIALS 2019; 2:4002-4009. [PMID: 35021333 DOI: 10.1021/acsabm.9b00536] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The achievement of controllable and lasting scent on a targeted surface is a long-term goal in the field of flavors and fragrances. Herein, we design a novel series of phototriggered coumarin-based profragrances conjugated with volatile carboxylic fragrances via activatable chemical bridge of ester group, thereby achieving the controllable release of volatile fragrances under ambient conditions. Upon exposure to light, the fragile ester group of profragrances allows the slow release of fragrance molecules, building up a new light-sensitive fragrance delivery system. The incorporated coumarin unit of CM-OH as phototrigger is killing two birds with one stone, that is, precise photocontrollable release of fragrance molecules, and unprecedented fluorescence intensity to monitor the releasing process of fragrance molecules with linear relationship (R2 > 0.95). In comparison, the light-induced releasing amount from profragrances of CM-O-EA, CM-O-PEA, CM-O-PA, and CM-O-CA is much lower than corresponding free fragrances by 33-, 8.5-, 13-, and 983-fold, respectively. As demonstrated, the coumarin-based profragrances provide a phototriggered platform to realize the controllable release of volatile fragrances, resulting in a long-lasting headspace concentration on the targeted surface of wallpaper.
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Affiliation(s)
- Ming Liu
- Shanghai Key Laboratory of Functional Materials Chemistry, Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Jianwei Han
- Shanghai Key Laboratory of Functional Materials Chemistry, Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Chenxu Yan
- Shanghai Key Laboratory of Functional Materials Chemistry, Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Zhiqian Guo
- Shanghai Key Laboratory of Functional Materials Chemistry, Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
| | - Zuobing Xiao
- School of Perfume and Aroma Technology, Shanghai Institute of Technology, Shanghai 201418, China
| | - Wei-Hong Zhu
- Shanghai Key Laboratory of Functional Materials Chemistry, Key Laboratory for Advanced Materials and Institute of Fine Chemicals, Joint International Research Laboratory of Precision Chemistry and Molecular Engineering, Feringa Nobel Prize Scientist Joint Research Center, School of Chemistry and Molecular Engineering, East China University of Science and Technology, Shanghai 200237, China
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13
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Bryngelson SH, Guéniat F, Freund JB. Irregular dynamics of cellular blood flow in a model microvessel. Phys Rev E 2019; 100:012203. [PMID: 31499874 DOI: 10.1103/physreve.100.012203] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/21/2019] [Indexed: 11/07/2022]
Abstract
The flow of red blood cells within cylindrical vessels is complex and irregular, so long as the vessel diameter is somewhat larger than the nominal cell size. Long-time-series simulations, in which cells flow 10^{5} vessel diameters, are used to characterize the chaotic kinematics, particularly to inform reduced-order models. The simulation model used includes full coupling between the elastic red blood cell membranes and surrounding viscous fluid, providing a faithful representation of the cell-scale dynamics. Results show that the flow has neither classifiable recurrent features nor a dominant frequency. Instead, its kinematics are sensitive to the initial flow configuration in a way consistent with chaos and Lagrangian turbulence. Phase-space reconstructions show that a low-dimensional attractor does not exist, so the observed long-time dynamics are effectively stochastic. Based on this, a simple Markov chain model for the dynamics is introduced and shown to reproduce the statistics of the cell positions.
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Affiliation(s)
- Spencer H Bryngelson
- Department of Mechanical Science & Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Florimond Guéniat
- The Center for Exascale Simulation of Plasma-coupled Combustion, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
| | - Jonathan B Freund
- Department of Mechanical Science & Engineering, University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA.,Department of Aerospace Engineering University of Illinois at Urbana-Champaign, Urbana, Illinois 61801, USA
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14
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Ciou JH, Li S, Lee PS. Ti 3 C 2 MXene Paper for the Effective Adsorption and Controllable Release of Aroma Molecules. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2019; 15:e1903281. [PMID: 31389665 DOI: 10.1002/smll.201903281] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/24/2019] [Indexed: 06/10/2023]
Abstract
Olfactory sensing and perception play an important role in people's daily lives and greatly affects senses, emotions, and behavior. In particular, the development of the controlled release of aroma enhances human's well-being and strengthens interactions with surroundings through olfactory display, especial when combined with visual and audial cues. Here, Ti3 C2 MXene plays a dual-function role as the adsorption site of aroma molecules and the heating source for the controlled release of aroma molecules. Due to abundant termination groups on the surface and the metallic nature, Ti3 C2 MXene provides abundant active sites for the interaction with aroma molecules; simultaneously, MXene can be electrically heated to thermally desorb the aroma molecules from the interaction sites. This approach eliminates the interface incompatibility issues between the heating source and the molecular encapsulation layer in conventional olfactory display system. This work presents the controlled release of the aroma molecule phenethyl alcohol (PA) using Ti3 C2 MXene paper. Ti3 C2 MXene paper serves as the adsorption material and a heating source that achieves 100 °C within 1 s. The relative amount of PA released reaches nearly 100% after 1 min of heating.
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Affiliation(s)
- Jing-Hao Ciou
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Shaohui Li
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
| | - Pooi See Lee
- School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore, 639798, Singapore
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15
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Meesorn W, Calvino C, Natterodt JC, Zoppe JO, Weder C. Bio-Inspired, Self-Toughening Polymers Enabled by Plasticizer-Releasing Microcapsules. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2019; 31:e1807212. [PMID: 30680825 DOI: 10.1002/adma.201807212] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2018] [Revised: 01/03/2019] [Indexed: 06/09/2023]
Abstract
A new concept for the design of self-toughening thermoplastic polymers is presented. The approach involves the incorporation of plasticizer-filled microcapsules (MCs) in an intrinsically rigid and brittle matrix polymer. The intriguing adaptability that this simple tactic enables is demonstrated with composites composed of a poly(lactic acid) (PLA) matrix and 5-20% w/w poly(urea-formaldehyde) (PUF) MCs that contained hexyl acetate as plasticizer. At low strain (<1.5%), the glassy PLA/MC composites remain rigid, although the intact MCs reduce the Young's modulus and tensile strength by up to 50%. While the neat PLA shows brittle failure at a strain of around 2.5%, the composites yield in this regime, because the MCs rupture and release their plasticizing cargo. This effect leads up to 25-fold increase of the elongation at break and 20-fold increase of the toughness vis-à-vis the neat PLA, while the impact on modulus and ultimate stress is much smaller. Ballistic impact tests show that the self-toughening mechanism also works at much higher strain rates than applied in tensile tests and the operating mechanism is corroborated through systematic thermomechanical studies that involved dynamic mechanical testing and thermal analysis.
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Affiliation(s)
- Worarin Meesorn
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, CH-1700, Fribourg, Switzerland
| | - Céline Calvino
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, CH-1700, Fribourg, Switzerland
| | - Jens C Natterodt
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, CH-1700, Fribourg, Switzerland
| | - Justin O Zoppe
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, CH-1700, Fribourg, Switzerland
| | - Christoph Weder
- Adolphe Merkle Institute, University of Fribourg, Chemin des Verdiers 4, CH-1700, Fribourg, Switzerland
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16
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Liu Y, Liu K, Zhao M, Wang S, Zhou Z, Shen Y, Jiang L. A pH-responsive fragrance release system based on pseudopeptide polymeric micelles. REACT FUNCT POLYM 2018. [DOI: 10.1016/j.reactfunctpolym.2018.09.021] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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17
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Coughlan ACH, Torres-Diaz I, Jerri HA, Bevan MA. Direct Measurements of kT-Scale Capsule-Substrate Interactions and Deposition Versus Surfactants and Polymer Additives. ACS APPLIED MATERIALS & INTERFACES 2018; 10:27444-27453. [PMID: 30024154 DOI: 10.1021/acsami.8b06987] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
We report a novel approach to directly measure the interactions and deposition behavior of functional capsule delivery systems on glass substrates versus the concentration of an anionic surfactant sodium lauryl ether sulfate (SLES) and a cationic acrylamide-acrylamidopropyltrimonium copolymer (AAC). Analyses of three-dimensional optical microscopy trajectories were used to quantify lateral diffusive dynamics, deposition lifetimes, and potentials of mean force for different solution conditions. In the absence of additives, negatively charged capsule surfaces yield electrostatic repulsion with the negatively charged substrate, which inhibits deposition. With an increasing SLES concentration below the critical micelle concentration (CMC), capsule-substrate electrostatic repulsion is mediated by the charged surfactant solution that decreases the Debye length. Above the SLES CMC, depletion attraction causes enhanced deposition until eventually depletion repulsion inhibits deposition at concentrations ∼10 wt %. Addition of an ACC causes deposition via capsule-substrate bridging at all concentrations; the weakest deposition occurs at intermediate AAC concentrations from a competition of steric repulsion and attraction via a few extended bridges. The novel measurements and models of capsule interactions and deposition on substrates in this work provide a basis to fundamentally understand and rationally design complex rinse-off cleansing formulations with optimal characteristics.
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Affiliation(s)
- Anna C H Coughlan
- Chemical & Biomolecular Engineering , Johns Hopkins University , Baltimore , Maryland 21218 , United States
| | - Isaac Torres-Diaz
- Chemical & Biomolecular Engineering , Johns Hopkins University , Baltimore , Maryland 21218 , United States
| | - Huda A Jerri
- R&D Division , Firmenich Inc. , Plainsboro , New Jersey 08536 , United States
| | - Michael A Bevan
- Chemical & Biomolecular Engineering , Johns Hopkins University , Baltimore , Maryland 21218 , United States
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18
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Epley CC, Roth KL, Lin S, Ahrenholtz SR, Grove TZ, Morris AJ. Cargo delivery on demand from photodegradable MOF nano-cages. Dalton Trans 2018; 46:4917-4922. [PMID: 28181621 DOI: 10.1039/c6dt04787d] [Citation(s) in RCA: 34] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
We report the photo-induced degradation of and cargo release from a nanoscale metal-organic framework (nMOF) incorporating photo-isomerizable 4,4'-azobenzenedicarboxylate (AZB) linkers. The structure matches a UiO-type framework where 12 4,4'-azobenzenedicarboxylate moieties are connected to a Zr6O4(OH)4 cluster, referred to as UiO-AZB. Due to the incorporation of photo-isomerizable struts, the degradation of UiO-AZB is accelerated by irradiation with white light (1.3 ± 0.1% h-1 under dark conditions vs. 8.4 ± 0.4% h-1 when irradiated). Additionally, we show slow release of Nile Red (NR) which is triggered by irradiation (0.04 ± 0.01% h-1 under dark conditions vs. 0.36 ± 0.02% h-1 when irradiated).
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Affiliation(s)
- Charity C Epley
- Department of Chemistry and Macromolecules Innovation Institute, Virginia Tech, Blacksburg, Virginia 24061, USA.
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19
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León G, Paret N, Fankhauser P, Grenno D, Erni P, Ouali L, Berthier DL. Formaldehyde-free melamine microcapsules as core/shell delivery systems for encapsulation of volatile active ingredients. RSC Adv 2017. [DOI: 10.1039/c7ra01413a] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The release of volatile bioactive molecules, such as fragrances, can be controlled by microencapsulation in core–shell polymeric delivery systems.
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Affiliation(s)
- G. León
- Firmenich SA
- Corporate Research Division
- 1211 Genève 8
- Switzerland
| | - N. Paret
- Firmenich SA
- Corporate Research Division
- 1211 Genève 8
- Switzerland
| | - P. Fankhauser
- Firmenich SA
- Corporate Research Division
- 1211 Genève 8
- Switzerland
| | - D. Grenno
- Firmenich SA
- Corporate Research Division
- 1211 Genève 8
- Switzerland
| | - P. Erni
- Firmenich SA
- Corporate Research Division
- 1211 Genève 8
- Switzerland
| | - L. Ouali
- Firmenich SA
- Corporate Research Division
- 1211 Genève 8
- Switzerland
| | - D. L. Berthier
- Firmenich SA
- Corporate Research Division
- 1211 Genève 8
- Switzerland
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20
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Xu J, Li J, Yang Y, Wang K, Xu N, Li J, Liang R, Shen L, Xie X, Tao J, Zhu J. Block Copolymer Capsules with Structure‐Dependent Release Behavior. Angew Chem Int Ed Engl 2016; 55:14633-14637. [DOI: 10.1002/anie.201607982] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2016] [Revised: 09/16/2016] [Indexed: 12/28/2022]
Affiliation(s)
- Jiangping Xu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education School of Chemistry and Chemical Engineering Huazhong University of Science and Technology (HUST) Wuhan 430074 China
| | - Jun Li
- Department of Dermatology Union Hospital Tongji Medical College HUST Wuhan 430022 China
| | - Yi Yang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education School of Chemistry and Chemical Engineering Huazhong University of Science and Technology (HUST) Wuhan 430074 China
| | - Ke Wang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education School of Chemistry and Chemical Engineering Huazhong University of Science and Technology (HUST) Wuhan 430074 China
| | - Nan Xu
- Department of Dermatology Union Hospital Tongji Medical College HUST Wuhan 430022 China
| | - Jingyi Li
- Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education School of Chemistry and Chemical Engineering Huazhong University of Science and Technology (HUST) Wuhan 430074 China
| | - Ruijing Liang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education School of Chemistry and Chemical Engineering Huazhong University of Science and Technology (HUST) Wuhan 430074 China
| | - Lei Shen
- Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education School of Chemistry and Chemical Engineering Huazhong University of Science and Technology (HUST) Wuhan 430074 China
| | - Xiaolin Xie
- Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education School of Chemistry and Chemical Engineering Huazhong University of Science and Technology (HUST) Wuhan 430074 China
| | - Juan Tao
- Department of Dermatology Union Hospital Tongji Medical College HUST Wuhan 430022 China
| | - Jintao Zhu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage Ministry of Education School of Chemistry and Chemical Engineering Huazhong University of Science and Technology (HUST) Wuhan 430074 China
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21
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Xu J, Li J, Yang Y, Wang K, Xu N, Li J, Liang R, Shen L, Xie X, Tao J, Zhu J. Block Copolymer Capsules with Structure-Dependent Release Behavior. Angew Chem Int Ed Engl 2016. [DOI: 10.1002/ange.201607982] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Affiliation(s)
- Jiangping Xu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage; Ministry of Education; School of Chemistry and Chemical Engineering; Huazhong University of Science and Technology (HUST); Wuhan 430074 China
| | - Jun Li
- Department of Dermatology; Union Hospital; Tongji Medical College; HUST; Wuhan 430022 China
| | - Yi Yang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage; Ministry of Education; School of Chemistry and Chemical Engineering; Huazhong University of Science and Technology (HUST); Wuhan 430074 China
| | - Ke Wang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage; Ministry of Education; School of Chemistry and Chemical Engineering; Huazhong University of Science and Technology (HUST); Wuhan 430074 China
| | - Nan Xu
- Department of Dermatology; Union Hospital; Tongji Medical College; HUST; Wuhan 430022 China
| | - Jingyi Li
- Key Laboratory of Material Chemistry for Energy Conversion and Storage; Ministry of Education; School of Chemistry and Chemical Engineering; Huazhong University of Science and Technology (HUST); Wuhan 430074 China
| | - Ruijing Liang
- Key Laboratory of Material Chemistry for Energy Conversion and Storage; Ministry of Education; School of Chemistry and Chemical Engineering; Huazhong University of Science and Technology (HUST); Wuhan 430074 China
| | - Lei Shen
- Key Laboratory of Material Chemistry for Energy Conversion and Storage; Ministry of Education; School of Chemistry and Chemical Engineering; Huazhong University of Science and Technology (HUST); Wuhan 430074 China
| | - Xiaolin Xie
- Key Laboratory of Material Chemistry for Energy Conversion and Storage; Ministry of Education; School of Chemistry and Chemical Engineering; Huazhong University of Science and Technology (HUST); Wuhan 430074 China
| | - Juan Tao
- Department of Dermatology; Union Hospital; Tongji Medical College; HUST; Wuhan 430022 China
| | - Jintao Zhu
- Key Laboratory of Material Chemistry for Energy Conversion and Storage; Ministry of Education; School of Chemistry and Chemical Engineering; Huazhong University of Science and Technology (HUST); Wuhan 430074 China
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22
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Liao Z, Xue D, Li H, Shi L. Fragrance-Containing Microcapsules Based on Interfacial Thiol-Ene Polymerization. J Appl Polym Sci 2016. [DOI: 10.1002/app.43905] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Ziyang Liao
- School of Pharmacy; East China University of Science and Technology; Shanghai 200237 China
| | - Daquan Xue
- Shanghai Yilian Chemical and Hi-Tech Co., Ltd; Shanghai 201203 China
| | - Hao Li
- School of Pharmacy; East China University of Science and Technology; Shanghai 200237 China
| | - Lei Shi
- Corporate R&D Division; Firmenich Aromatics (China) Co., Ltd; Shanghai 201108 China
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23
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Karasawa S, Todo JI, Usui K, Harada N, Yoza K, Suemune H, Koga N. Regioselective Photocyclizations of Di(quinolinyl)arylamines and Tri(quinolinyl)amine with Emission Color Changes and Photoreaction-Induced Self-Assemblies. Chemistry 2016; 22:7771-81. [DOI: 10.1002/chem.201600514] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2016] [Indexed: 01/30/2023]
Affiliation(s)
- Satoru Karasawa
- Graduate School of Pharmaceutical Sciences; Kyushu University; 3-1-1 Maidashi Higashi-ku Fukuoka 812-8582 Japan
- PRESTO; Japan Science and Technology Agency; 4-1-8 Honcho Kawaguchi Saitama 332-0012 Japan
| | - Jun-ichi Todo
- Graduate School of Pharmaceutical Sciences; Kyushu University; 3-1-1 Maidashi Higashi-ku Fukuoka 812-8582 Japan
| | - Kazuteru Usui
- Graduate School of Pharmaceutical Sciences; Kyushu University; 3-1-1 Maidashi Higashi-ku Fukuoka 812-8582 Japan
| | - Naomi Harada
- Graduate School of Pharmaceutical Sciences; Kyushu University; 3-1-1 Maidashi Higashi-ku Fukuoka 812-8582 Japan
| | - Kenji Yoza
- Bruker AXS K.K; 3-9 Moriyacho Kanagawa-ku Yokohama 221-0022 Japan
| | - Hiroshi Suemune
- Graduate School of Pharmaceutical Sciences; Kyushu University; 3-1-1 Maidashi Higashi-ku Fukuoka 812-8582 Japan
| | - Noboru Koga
- Graduate School of Pharmaceutical Sciences; Kyushu University; 3-1-1 Maidashi Higashi-ku Fukuoka 812-8582 Japan
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24
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Wu Y, Shen J, Larcinese-Hafner V, Erni P, Ouali L. Hybrid microcapsules with tunable properties via Pickering emulsion templates for the encapsulation of bioactive volatiles. RSC Adv 2016. [DOI: 10.1039/c6ra21338c] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Hybrid microcapsules with tunable properties and low permeability were fabricated via Pickering emulsion templates for the encapsulation of bioactive volatiles.
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Affiliation(s)
- Yongtao Wu
- Firmenich Aromatics (China) Co., Ltd
- Shanghai 201108
- China
| | - Jiajun Shen
- Firmenich Aromatics (China) Co., Ltd
- Shanghai 201108
- China
| | | | - Philipp Erni
- Firmenich SA
- Cooperate Research Division
- CH-1211 Geneva 8
- Switzerland
| | - Lahoussine Ouali
- Firmenich SA
- Cooperate Research Division
- CH-1211 Geneva 8
- Switzerland
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25
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Trachsel A, Buchs B, Herrmann A. Photolabile acetals as profragrances: the effect of structural modifications on the light-induced release of volatile aldehydes on cotton. Photochem Photobiol Sci 2016; 15:1183-1203. [DOI: 10.1039/c6pp00206d] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Dynamic headspace analysis above a cotton surface treated with a fabric softening formulation showed that, depending on the substitution pattern, the photoirradiation of 4,4-diphenyl-4H-benzo[d][1,3]dioxine profragrances released perfumery aldehydes in quantities spanning several orders of magnitude.
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Affiliation(s)
- Alain Trachsel
- Firmenich SA
- Division Recherche et Développement
- CH-1211 Genève 8
- Switzerland
| | - Barbara Buchs
- Firmenich SA
- Division Recherche et Développement
- CH-1211 Genève 8
- Switzerland
| | - Andreas Herrmann
- Firmenich SA
- Division Recherche et Développement
- CH-1211 Genève 8
- Switzerland
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26
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Charlon M, Trachsel A, Paret N, Frascotti L, Berthier DL, Herrmann A. “Old” chemistry in a new context: photocleavable 2-oxoacetate-containing latex dispersions and core–shell microcapsules for the controlled release of volatile compounds. Polym Chem 2015. [DOI: 10.1039/c5py00162e] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
2-Oxoacetates polymerised into nanoparticles or encapsulated in microcapsules are stable against hydrolysis and release fragrances on UVA irradiation.
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Affiliation(s)
- Marine Charlon
- Firmenich SA
- Materials Science
- Corporate R&D Division
- CH-1211 Genève 8
- Switzerland
| | - Alain Trachsel
- Firmenich SA
- Materials Science
- Corporate R&D Division
- CH-1211 Genève 8
- Switzerland
| | - Nicolas Paret
- Firmenich SA
- Materials Science
- Corporate R&D Division
- CH-1211 Genève 8
- Switzerland
| | - Laurence Frascotti
- Firmenich SA
- Materials Science
- Corporate R&D Division
- CH-1211 Genève 8
- Switzerland
| | - Damien L. Berthier
- Firmenich SA
- Materials Science
- Corporate R&D Division
- CH-1211 Genève 8
- Switzerland
| | - Andreas Herrmann
- Firmenich SA
- Materials Science
- Corporate R&D Division
- CH-1211 Genève 8
- Switzerland
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