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Matias M, Martins A, Alves C, Silva J, Pinteus S, Fitas M, Pinto P, Marto J, Ribeiro H, Murray P, Pedrosa R. New Insights into the Dermocosmetic Potential of the Red Seaweed Gelidium corneum. Antioxidants (Basel) 2023; 12:1684. [PMID: 37759987 PMCID: PMC10525542 DOI: 10.3390/antiox12091684] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2023] [Revised: 07/24/2023] [Accepted: 08/21/2023] [Indexed: 09/29/2023] Open
Abstract
This work addresses the potential of the red seaweed Gelidium corneum as a source of bioactive ingredients for skin health and wellness in response to the growing awareness regarding the significance of sustainable strategies in developing new nature-based dermocosmetic products. Hydroalcoholic extracts from the dried biomass were subjected to sequential liquid-liquid partitions, affording five different fractions (F1-F5). Their cosmetic potential was assessed through a set of in vitro assays concerning their antioxidant, photoprotective, and healing properties. Additionally, their cytotoxicity in HaCaT cells and their capacity to induce inflammation in RAW 264.7 cells were also evaluated. As a proof-of-concept, O/W emulsions were prepared, and emulsion stability was assessed by optical microscopy, droplet size analysis, centrifugation tests, and rheology analysis. Furthermore, in vivo tests were conducted with the final formulation to assess its antioxidant capacity. At subtoxic concentrations, the most lipophilic fraction has provided photoprotection against UV light-induced photooxidation in HaCaT cells. This was conducted together with the aqueous fraction, which also displayed healing capacities. Regarding the physical and stability assays, the best performance was achieved with the formulation containing 1% aqueous extract, which exhibited water retention and antioxidant properties in the in vivo assay. In summary, Gelidium corneum displayed itself as a potential source of bioactive ingredients with multitarget properties for dermatological use.
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Affiliation(s)
- Margarida Matias
- MARE-Marine and Environmental Sciences Centre and ARNET-Aquatic Research Network, Escola Superior de Turismo e Tecnologia do Mar, Polytechnic of Leiria, 2520-630 Peniche, Portugal; (C.A.); (J.S.); (S.P.); (R.P.)
- LIFE-Health and Bioscience Research Institute, Technological University of Shannon, Moylish Park, V94 E8YF Limerick, Ireland;
| | - Alice Martins
- MARE-Marine and Environmental Sciences Centre and ARNET-Aquatic Research Network, Escola Superior de Turismo e Tecnologia do Mar, Polytechnic of Leiria, 2520-630 Peniche, Portugal; (C.A.); (J.S.); (S.P.); (R.P.)
| | - Celso Alves
- MARE-Marine and Environmental Sciences Centre and ARNET-Aquatic Research Network, Escola Superior de Turismo e Tecnologia do Mar, Polytechnic of Leiria, 2520-630 Peniche, Portugal; (C.A.); (J.S.); (S.P.); (R.P.)
| | - Joana Silva
- MARE-Marine and Environmental Sciences Centre and ARNET-Aquatic Research Network, Escola Superior de Turismo e Tecnologia do Mar, Polytechnic of Leiria, 2520-630 Peniche, Portugal; (C.A.); (J.S.); (S.P.); (R.P.)
| | - Susete Pinteus
- MARE-Marine and Environmental Sciences Centre and ARNET-Aquatic Research Network, Escola Superior de Turismo e Tecnologia do Mar, Polytechnic of Leiria, 2520-630 Peniche, Portugal; (C.A.); (J.S.); (S.P.); (R.P.)
| | - Manuel Fitas
- PhD Trials, Avenida Maria Helena Vieira da Silva, n° 24 A, 1750-182 Lisboa, Portugal; (M.F.); (P.P.)
| | - Pedro Pinto
- PhD Trials, Avenida Maria Helena Vieira da Silva, n° 24 A, 1750-182 Lisboa, Portugal; (M.F.); (P.P.)
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (J.M.); (H.R.)
| | - Joana Marto
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (J.M.); (H.R.)
| | - Helena Ribeiro
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade de Lisboa, 1649-003 Lisbon, Portugal; (J.M.); (H.R.)
| | - Patrick Murray
- LIFE-Health and Bioscience Research Institute, Technological University of Shannon, Moylish Park, V94 E8YF Limerick, Ireland;
| | - Rui Pedrosa
- MARE-Marine and Environmental Sciences Centre and ARNET-Aquatic Research Network, Escola Superior de Turismo e Tecnologia do Mar, Polytechnic of Leiria, 2520-630 Peniche, Portugal; (C.A.); (J.S.); (S.P.); (R.P.)
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Choi J, Kim H, Lee H, Yi S, Hyun Lee J, Woong Kim J. Hydrophobically modified silica nanolaces-armored water-in-oil pickering emulsions with enhanced interfacial attachment energy. J Colloid Interface Sci 2023; 641:376-385. [PMID: 36940594 DOI: 10.1016/j.jcis.2023.03.075] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2022] [Revised: 03/05/2023] [Accepted: 03/10/2023] [Indexed: 03/16/2023]
Abstract
HYPOTHESIS Anisotropic particles with a high aspect ratio led to favorable interfacial adhesion, thus enabling Pickering emulsion stabilization. Herein, we hypothesized that pearl necklace-shaped colloid particles would play a key role in stabilizing water-in-silicone oil (W/S) emulsions by taking advantage of their enhanced interfacial attachment energy. EXPERIMENTS We fabricated hydrophobically modified silica nanolaces (SiNLs) by depositing silica onto bacterial cellulose nanofibril templates and subsequently grafting alkyl chains with tuned amounts and chain lengths onto the nanograins comprising the SiNLs. FINDINGS The SiNLs, of which nanograin has the same dimension and surface chemistry as the silica nanospheres (SiNSs), showed more favorable wettability than SiNSs at the W/S interface, which was supported by the approximately 50 times higher attachment energy theoretically calculated using the hit-and-miss Monte Carlo method. The SiNLs with longer alkyl chains from C6 to C18 more effectively assembled at the W/S interface to produce a fibrillary interfacial membrane with a 10 times higher interfacial modulus, preventing water droplets from coalescing and improving the sedimentation stability and bulk viscoelasticity. These results demonstrate that the SiNLs acted as a promising colloidal surfactant for W/S Pickering emulsion stabilization, thereby allowing the exploration of diverse pharmaceutical and cosmetic formulations.
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Affiliation(s)
- Jihyun Choi
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Hajeong Kim
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea
| | - Hyunsuk Lee
- Research and Innovation Center, AMOREPACIFIC, Yongin 17074, Republic of Korea
| | - SeungHwan Yi
- Research and Innovation Center, AMOREPACIFIC, Yongin 17074, Republic of Korea
| | - Jin Hyun Lee
- School of Bio-Convergence Science, College of Biomedical & Health Science, Konkuk University, Chungju 27478, Republic of Korea.
| | - Jin Woong Kim
- School of Chemical Engineering, Sungkyunkwan University, Suwon 16419, Republic of Korea.
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Liu W, Fu H, Bao M, Luo C, Han X, Zhang D, Liu H, Li Y, Lu J. Emulsions stabilized by asphaltene-polyacrylamide-soil three-phase components: Stabilization mechanism and concentration effects. Sep Purif Technol 2022. [DOI: 10.1016/j.seppur.2022.122157] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Chan DHH, Hunter SJ, Neal TJ, Lindsay C, Taylor P, Armes SP. Adsorption of sterically-stabilized diblock copolymer nanoparticles at the oil-water interface: effect of charged end-groups on interfacial rheology. SOFT MATTER 2022; 18:6757-6770. [PMID: 36040127 DOI: 10.1039/d2sm00835a] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The RAFT aqueous emulsion polymerization of either methyl methacrylate (MMA) or benzyl methacrylate (BzMA) is conducted at 70 °C using poly(glycerol monomethacrylate) (PGMA) as a water-soluble precursor to produce sterically-stabilized diblock copolymer nanoparticles of approximately 30 nm diameter. Carboxylic acid- or morpholine-functional RAFT agents are employed to confer anionic or cationic functionality at the ends of the PGMA stabilizer chains, with a neutral RAFT agent being used as a control. Thus the electrophoretic footprint of such minimally-charged model nanoparticles can be adjusted simply by varying the solution pH. Giant (mm-sized) aqueous droplets containing such nanoparticles are then grown within a continuous phase of n-dodecane and a series of interfacial rheology measurements are conducted. The interfacial tension between the aqueous phase and n-dodecane is strongly dependent on the charge of the terminal group on the stabilizer chains. More specifically, neutral nanoparticles produce a significantly lower interfacial tension than either cationic or anionic nanoparticles. Moreover, adsorption of neutral nanoparticles at the n-dodecane-water interface produces higher interfacial elastic moduli than that observed for charged nanoparticles. This is because neutral nanoparticles can adsorb at much higher surface packing densities owing to the absence of electrostatic repulsive forces in this case.
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Affiliation(s)
- Derek H H Chan
- Dainton Building, Department of Chemistry, University of Sheffield, Brook Hill, Sheffield, South Yorkshire, S3 7HF, UK.
| | - Saul J Hunter
- Dainton Building, Department of Chemistry, University of Sheffield, Brook Hill, Sheffield, South Yorkshire, S3 7HF, UK.
| | - Thomas J Neal
- Dainton Building, Department of Chemistry, University of Sheffield, Brook Hill, Sheffield, South Yorkshire, S3 7HF, UK.
| | - Christopher Lindsay
- Syngenta, Jealott's Hill International Research Centre, Bracknell, Berkshire, RG42 6EY, UK.
| | - Philip Taylor
- Syngenta, Jealott's Hill International Research Centre, Bracknell, Berkshire, RG42 6EY, UK.
| | - Steven P Armes
- Dainton Building, Department of Chemistry, University of Sheffield, Brook Hill, Sheffield, South Yorkshire, S3 7HF, UK.
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Kamkar M, Ghaffarkhah A, Ajdary R, Lu Y, Ahmadijokani F, Mhatre SE, Erfanian E, Sundararaj U, Arjmand M, Rojas OJ. Structured Ultra-Flyweight Aerogels by Interfacial Complexation: Self-Assembly Enabling Multiscale Designs. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2022; 18:e2200220. [PMID: 35279945 DOI: 10.1002/smll.202200220] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/12/2022] [Revised: 02/20/2022] [Indexed: 06/14/2023]
Abstract
The rapid co-assembly of graphene oxide (GO) nanosheets and a surfactant at the oil/water (O/W) interface is harnessed to develop a new class of soft materials comprising continuous, multilayer, interpenetrated, and tubular structures. The process uses a microfluidic approach that enables interfacial complexation of two-phase systems, herein, termed as "liquid streaming" (LS). LS is demonstrated as a general method to design multifunctional soft materials of specific hierarchical order and morphology, conveniently controlled by the nature of the oil phase and extrusion's injection pressure, print-head speed, and nozzle diameter. The as-obtained LS systems can be readily converted into ultra-flyweight aerogels displaying worm-like morphologies with multiscale porosities (micro- and macro-scaled). The presence of reduced GO nanosheets in such large surface area systems renders materials with outstanding mechanical compressibility and tailorable electrical activity. This platform for engineering soft materials and solid constructs opens up new horizons toward advanced functionality and tunability, as demonstrated here for ultralight printed conductive circuits and electromagnetic interference shields.
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Affiliation(s)
- Milad Kamkar
- Department of Chemical and Biological Engineering, Department of Chemistry and Department of Wood Science, Bioproducts Institute, University of British Columbia, 2360 East Mall, Vancouver, BC, V6T 1Z3, Canada
| | - Ahmadreza Ghaffarkhah
- Nanomaterials and Polymer Nanocomposites Laboratory, School of Engineering, University of British Columbia, Kelowna, BC, V1V 1V7, Canada
| | - Rubina Ajdary
- Department of Chemical and Biological Engineering, Department of Chemistry and Department of Wood Science, Bioproducts Institute, University of British Columbia, 2360 East Mall, Vancouver, BC, V6T 1Z3, Canada
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, Aalto, Espoo, FI-00076, Finland
| | - Yi Lu
- Department of Chemical and Biological Engineering, Department of Chemistry and Department of Wood Science, Bioproducts Institute, University of British Columbia, 2360 East Mall, Vancouver, BC, V6T 1Z3, Canada
| | - Farhad Ahmadijokani
- Department of Chemical and Biological Engineering, Department of Chemistry and Department of Wood Science, Bioproducts Institute, University of British Columbia, 2360 East Mall, Vancouver, BC, V6T 1Z3, Canada
- Nanomaterials and Polymer Nanocomposites Laboratory, School of Engineering, University of British Columbia, Kelowna, BC, V1V 1V7, Canada
| | - Sameer E Mhatre
- Department of Chemical and Biological Engineering, Department of Chemistry and Department of Wood Science, Bioproducts Institute, University of British Columbia, 2360 East Mall, Vancouver, BC, V6T 1Z3, Canada
| | - Elnaz Erfanian
- Department of Chemical and Biological Engineering, Department of Chemistry and Department of Wood Science, Bioproducts Institute, University of British Columbia, 2360 East Mall, Vancouver, BC, V6T 1Z3, Canada
- Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, AB, T2N 1N4, Canada
| | - Uttandaraman Sundararaj
- Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, AB, T2N 1N4, Canada
| | - Mohammad Arjmand
- Nanomaterials and Polymer Nanocomposites Laboratory, School of Engineering, University of British Columbia, Kelowna, BC, V1V 1V7, Canada
| | - Orlando J Rojas
- Department of Chemical and Biological Engineering, Department of Chemistry and Department of Wood Science, Bioproducts Institute, University of British Columbia, 2360 East Mall, Vancouver, BC, V6T 1Z3, Canada
- Department of Bioproducts and Biosystems, School of Chemical Engineering, Aalto University, P.O. Box 16300, Aalto, Espoo, FI-00076, Finland
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Synergetic effect of asphaltenes extracted from polymer containing oil sludge and HPAM at water/toluene interface. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.127572] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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Yu X, He L, Liu R, Guan H, Ge C, Zhang X. Preparation and Photothermal Conversion of h‐BN/CuO Nanofluids. ChemistrySelect 2021. [DOI: 10.1002/slct.202103025] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Xiaohan Yu
- College of Chemistry Liaoning University Chongshan Road No. 66 Shenyang 110036 P. R. China
| | - Lili He
- College of Chemistry Liaoning University Chongshan Road No. 66 Shenyang 110036 P. R. China
| | - Rui Liu
- College of Chemistry Liaoning University Chongshan Road No. 66 Shenyang 110036 P. R. China
| | - Hongyu Guan
- College of Chemistry Liaoning University Chongshan Road No. 66 Shenyang 110036 P. R. China
| | - Chunhua Ge
- College of Chemistry Liaoning University Chongshan Road No. 66 Shenyang 110036 P. R. China
| | - Xiangdong Zhang
- College of Chemistry Liaoning University Chongshan Road No. 66 Shenyang 110036 P. R. China
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Saleh S, Neubauer E, Borovina A, Hincapie RE, Clemens T, Ness D. Wettability Changes Due to Nanomaterials and Alkali-A Proposed Formulation for EOR. NANOMATERIALS (BASEL, SWITZERLAND) 2021; 11:2351. [PMID: 34578671 PMCID: PMC8469516 DOI: 10.3390/nano11092351] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/25/2021] [Revised: 08/25/2021] [Accepted: 09/08/2021] [Indexed: 02/07/2023]
Abstract
We investigated the usage of two silica nanomaterials (surface-modified) and alkali in enhanced oil recovery through Amott spontaneous imbibition tests, interfacial tension (IFT) measurements, and phase behavior. We evaluated the wettability alteration induced by the synergy between nanomaterials and alkali. Moreover, numerical analysis of the results was carried out using inverse Bond number and capillary diffusion coefficient. Evaluations included the use of Berea and Keuper outcrop material, crude oil with different total acid numbers (TAN), and Na2CO3 as alkaline agent. Data showed that nanomaterials can reduce the IFT, with surface charge playing an important role in this process. In synergy with alkali, the use of nanomaterials led to low-stable IFT values. This effect was also seen in the phase behavior tests, where brine/oil systems with lower IFT exhibited better emulsification. Nanomaterials' contribution to the phase behavior was mainly the stabilization of the emulsion middle phase. The influence of TAN number on the IFT and phase behavior was prominent especially when combined with alkali. Amott spontaneous imbibition resulted in additional oil recovery ranging from 4% to 50% above the baseline, which was confirmed by inverse Bond number analysis. High recoveries were achieved using alkali and nanomaterials; these values were attributed to wettability alteration that accelerated the imbibition kinetics as seen in capillary diffusion coefficient analysis.
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Affiliation(s)
- Samhar Saleh
- Montanuniversität Leoben, DPE Department Petroleum Engineering, Franz-Josef-Straße 18, 8700 Leoben, Austria;
| | - Elisabeth Neubauer
- OMV Exploration & Production GmbH, OMV Upstream Technology & Innovation, TECH Center & Lab, 1020 Vienna, Austria; (E.N.); (A.B.); (T.C.)
| | - Ante Borovina
- OMV Exploration & Production GmbH, OMV Upstream Technology & Innovation, TECH Center & Lab, 1020 Vienna, Austria; (E.N.); (A.B.); (T.C.)
| | - Rafael E. Hincapie
- OMV Exploration & Production GmbH, OMV Upstream Technology & Innovation, TECH Center & Lab, 1020 Vienna, Austria; (E.N.); (A.B.); (T.C.)
| | - Torsten Clemens
- OMV Exploration & Production GmbH, OMV Upstream Technology & Innovation, TECH Center & Lab, 1020 Vienna, Austria; (E.N.); (A.B.); (T.C.)
| | - Daniel Ness
- Evonik Operations GmbH, Research, Development & Innovation, D-63450 Hanau, Germany;
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Velandia SF, Ramos D, Lebrun M, Marchal P, Lemaitre C, Sadtler V, Roques-Carmes T. Exploring the link between interfacial and bulk viscoelasticity in reverse Pickering emulsions. Colloids Surf A Physicochem Eng Asp 2021. [DOI: 10.1016/j.colsurfa.2021.126785] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Bazazi P, Hejazi SH. Cellulose Nanocrystal Laden Oil–Water Interfaces: Interfacial Viscoelasticity, Emulsion Stability, and the Dynamics of Three-Phase Contact-Lines. Ind Eng Chem Res 2021. [DOI: 10.1021/acs.iecr.1c00413] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Parisa Bazazi
- Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, Alberta T2N 1N4, Canada
| | - S. Hossein Hejazi
- Department of Chemical and Petroleum Engineering, University of Calgary, Calgary, Alberta T2N 1N4, Canada
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Kannan A, Shieh IC, Negulescu PG, Chandran Suja V, Fuller GG. Adsorption and Aggregation of Monoclonal Antibodies at Silicone Oil-Water Interfaces. Mol Pharm 2021; 18:1656-1665. [PMID: 33656340 DOI: 10.1021/acs.molpharmaceut.0c01113] [Citation(s) in RCA: 20] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Monoclonal antibody (mAb) therapies are rapidly growing for the treatment of various diseases like cancer and autoimmune disorders. Many mAb drug products are sold as prefilled syringes and vials with liquid formulations. Typically, the walls of prefilled syringes are coated with silicone oil to lubricate the surfaces during use. MAbs are surface-active and adsorb to these silicone oil-solution interfaces, which is a potential source of aggregation. We studied formulations containing two different antibodies, mAb1 and mAb2, where mAb1 aggregated more when agitated in the presence of an oil-water interface. This directly correlated with differences in surface activity of the mAbs, studied with interfacial tension, surface mass adsorption, and interfacial rheology. The difference in interfacial properties between the mAbs was further reinforced in the coalescence behavior of oil droplets laden with mAbs. We also looked at the efficacy of surfactants, typically added to stabilize mAb formulations, in lowering adsorption and aggregation of mAbs at oil-water interfaces. We showed the differences between poloxamer-188 and polysorbate-20 in competing with mAbs for adsorption to interfaces and in lowering particulate and overall aggregation. Our results establish a direct correspondence between the adsorption of mAbs at oil-water interfaces and aggregation and the effect of surfactants in lowering aggregation by competitively adsorbing to these interfaces.
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Affiliation(s)
- Aadithya Kannan
- Stanford University, Stanford, California 94305, United States.,Genentech, South San Francisco, California 94080, United States
| | - Ian C Shieh
- Genentech, South San Francisco, California 94080, United States
| | | | | | - Gerald G Fuller
- Stanford University, Stanford, California 94305, United States
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Chandran Suja V, Rodríguez-Hakim M, Tajuelo J, Fuller GG. Single bubble and drop techniques for characterizing foams and emulsions. Adv Colloid Interface Sci 2020; 286:102295. [PMID: 33161297 DOI: 10.1016/j.cis.2020.102295] [Citation(s) in RCA: 18] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 10/04/2020] [Accepted: 10/05/2020] [Indexed: 12/17/2022]
Abstract
The physics of foams and emulsions has traditionally been studied using bulk foam/emulsion tests and single film platforms such as the Scheludko cell. Recently there has been a renewed interest in a third class of techniques that we term as single bubble/drop tests, which employ isolated whole bubbles and drops to probe the characteristics of foams and emulsions. Single bubble and drop techniques provide a convenient framework for investigating a number of important characteristics of foams and emulsions, including the rheology, stabilization mechanisms, and rupture dynamics. In this review we provide a comprehensive discussion of the various single bubble/drop platforms and the associated experimental measurement protocols including the construction of coalescence time distributions, visualization of the thin film profiles and characterization of the interfacial rheological properties. Subsequently, we summarize the recent developments in foam and emulsion science with a focus on the results obtained through single bubble/drop techniques. We conclude the review by presenting important venues for future research.
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Affiliation(s)
- V Chandran Suja
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, USA.
| | - M Rodríguez-Hakim
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, USA; Department of Materials, ETH Zurich, Vladimir-Prelog-Weg 5, Zurich 8093, Switzerland
| | - J Tajuelo
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, USA; Departamento de Física Interdisciplinar, Universidad Nacional de Eduación a Distancia UNED, Madrid 28040, Spain
| | - G G Fuller
- Department of Chemical Engineering, Stanford University, Stanford, California 94305, USA.
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Hyperspectral imaging for dynamic thin film interferometry. Sci Rep 2020; 10:11378. [PMID: 32647349 PMCID: PMC7347853 DOI: 10.1038/s41598-020-68433-0] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/30/2020] [Accepted: 06/22/2020] [Indexed: 12/15/2022] Open
Abstract
Dynamic thin film interferometry is a technique used to non-invasively characterize the thickness of thin liquid films that are evolving in both space and time. Recovering the underlying thickness from the captured interferograms, unconditionally and automatically is still an open problem. Here we report a compact setup employing a snapshot hyperspectral camera and the related algorithms for the automated determination of thickness profiles of dynamic thin liquid films. The proposed technique is shown to recover film thickness profiles to within 100 nm of accuracy as compared to those profiles reconstructed through the manual color matching process. Subsequently, we discuss the characteristics and advantages of hyperspectral interferometry including the increased robustness against imaging noise as well as the ability to perform thickness reconstruction without considering the absolute light intensity information.
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