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Wu J, Liu W, Ngai T. Total internal reflection microscopy: a powerful tool for exploring interactions and dynamics near interfaces. SOFT MATTER 2023. [PMID: 37314857 DOI: 10.1039/d3sm00085k] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
The occurrence of many micro/macrophenomena is closely related to interactions and dynamics near interfaces. Hence, developing powerful tools for characterizing near-interface interactions and dynamics has attached great importance among researchers. In this review, we introduce a noninvasive and ultrasensitive technique called total internal reflection microscopy (TIRM). The principles of TIRM are introduced first, demonstrating the characteristics of this technique. Then, typical measurements with TIRM and the recent development of the technique are reviewed in detail. At the end of the review, we highlight the great progress of TIRM during the past several decades and show its potential to be more influential in measuring interactions and dynamics near interfaces in various research fields.
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Affiliation(s)
- Jiahao Wu
- Department of Chemistry, The Chinese University of Hong Kong, N.T., Shatin, Hong Kong, China.
| | - Wei Liu
- Key Laboratory of Synthetic and Biological Colloids, Ministry of Education & School of Chemical and Material Engineering, Jiangnan University, Wuxi, China.
| | - To Ngai
- Department of Chemistry, The Chinese University of Hong Kong, N.T., Shatin, Hong Kong, China.
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2
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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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3
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Ryu BK, Fenton SM, Nguyen TTD, Helgeson M, Zia RN. Modeling colloidal interactions that predict equilibrium and non-equilibrium states. J Chem Phys 2022; 156:224101. [DOI: 10.1063/5.0086650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
Modulating the interaction potential between colloids suspended in a fluid can trigger equilibrium phase transitions as well as formation of non-equilibrium 'arrested states' such as gels and glasses. Faithful representation of such interactions are essential for using simulation to interrogate the microscopic details of non-equilibrium behavior, and for extrapolating observations to new regions of phase space that are difficult to explore in experiment. Although the extended law of corresponding states predicts equilibrium phases for systems with short-ranged interactions, it proves inadequate for equilibrium predictions of systems with longer-ranged interactions, and for predicting non-equilibrium phenomena in systems with either short-ranged or long-ranged interactions. These shortcomings highlight the need for new approaches to represent and disambiguate interaction potentials that replicate both equilibrium and non-equilibrium phase behavior. In this work, we use experiments and simulations to study a system with long-ranged thermoresponsive colloidal interactions and explore whether a resolution to this challenge can be found in regions of the phase diagram where temporal effects influence material state. We demonstrate that the conditions for non-equilibrium arrest by colloidal gelation are sensitive to both the shape of the interaction potential and the thermal quench rate. We exploit this sensitivity to propose a kinetics-based algorithm to extract distinct arrest conditions for candidate potentials that accurately selects between potentials that differ in shape but share the same predicted equilibrium structure. The method reveals that each potential has a quantitatively distinct arrest line, providing insight into how the shape of longer-ranged potentials influences the conditions for colloidal gelation.
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Affiliation(s)
- Brian K Ryu
- Stanford University, United States of America
| | - Scott M Fenton
- University of California Santa Barbara, United States of America
| | | | - Matthew Helgeson
- University of California Santa Barbara, United States of America
| | - Roseanna N. Zia
- Chemical Engineering, Stanford University, United States of America
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Srivastava RP, Khang DY. Structuring of Si into Multiple Scales by Metal-Assisted Chemical Etching. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2021; 33:e2005932. [PMID: 34013605 DOI: 10.1002/adma.202005932] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2020] [Revised: 11/18/2020] [Indexed: 05/27/2023]
Abstract
Structuring Si, ranging from nanoscale to macroscale feature dimensions, is essential for many applications. Metal-assisted chemical etching (MaCE) has been developed as a simple, low-cost, and scalable method to produce structures across widely different dimensions. The process involves various parameters, such as catalyst, substrate doping type and level, crystallography, etchant formulation, and etch additives. Careful optimization of these parameters is the key to the successful fabrication of Si structures. In this review, recent additions to the MaCE process are presented after a brief introduction to the fundamental principles involved in MaCE. In particular, the bulk-scale structuring of Si by MaCE is summarized and critically discussed with application examples. Various approaches for effective mass transport schemes are introduced and discussed. Further, the fine control of etch directionality and uniformity, and the suppression of unwanted side etching are also discussed. Known application examples of Si macrostructures fabricated by MaCE, though limited thus far, are presented. There are significant opportunities for the application of macroscale Si structures in different fields, such as microfluidics, micro-total analysis systems, and microelectromechanical systems, etc. Thus more research is necessary on macroscale MaCE of Si and their applications.
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Affiliation(s)
- Ravi P Srivastava
- Soft Electronic Materials and Devices Laboratory, Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Korea
| | - Dahl-Young Khang
- Soft Electronic Materials and Devices Laboratory, Department of Materials Science and Engineering, Yonsei University, Seoul, 03722, Korea
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Jumai’an E, Garcia E, Herrera-Alonso M, Bevan MA. Specific Ion Effects on Adsorbed Zwitterionic Copolymers. Macromolecules 2020. [DOI: 10.1021/acs.macromol.0c01815] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Affiliation(s)
- Eugenie Jumai’an
- Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Elena Garcia
- Chemical & Biological Engineering, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Margarita Herrera-Alonso
- Chemical & Biological Engineering, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Michael A. Bevan
- Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
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Najafi H, Jerri HA, Valmacco V, Petroff MG, Hansen C, Benczédi D, Bevan MA. Synergistic Polymer-Surfactant-Complex Mediated Colloidal Interactions and Deposition. ACS APPLIED MATERIALS & INTERFACES 2020; 12:14518-14530. [PMID: 32125138 DOI: 10.1021/acsami.9b21405] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Total internal reflection microscopy (TIRM) is used to directly, sensitively, and simultaneously measure colloidal interactions, dynamics, and deposition for a broad range of polymer-surfactant compositions. A deposition state diagram containing comprehensive information about particle interactions, trajectories, and deposition behavior is obtained for polymer-surfactant compositions covering four decades in both polymer and surfactant concentrations. Bulk polymer-surfactant phase behavior and surface properties are characterized to provide additional information to interpret mechanisms. Materials investigated include cationic acrylamide-acrylamidopropyltrimonium copolymer (AAC), sodium lauryl ether sulfate (SLES) surfactant, silica colloids, and glass microscope slides. Measured colloid-substrate interaction potentials and deposition behavior show nonmonotonic trends vs polymer-surfactant composition and appear to be synergistic in the sense that they are not easily explained as the superposition of single-component-mediated interactions. Broad findings show that at some compositions polymer-surfactant complexes mediate bridging and depletion attractions that promote colloidal deposition, whereas other compositions produce electrosteric repulsion that deters colloidal deposition. These findings illustrate mechanisms underlying colloid-surface interactions in polymer-surfactant mixtures, which are important to controlling selective colloidal deposition in multicomponent formulation applications.
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Affiliation(s)
- Helya Najafi
- 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
| | - Valentina Valmacco
- Corporate Research Division, Firmenich SA, Meyrin 2, Geneva 1217, Switzerland
| | - Matthew G Petroff
- Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Christopher Hansen
- R&D Division, Firmenich Inc., Plainsboro, New Jersey 08536, United States
| | - Daniel Benczédi
- Corporate Research Division, Firmenich SA, Meyrin 2, Geneva 1217, Switzerland
| | - Michael A Bevan
- Chemical & Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
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Hernández-Meza JM, Vélez-Cordero J, Yáñez-Soto B, Ramírez-Saito A, Aranda-Espinoza S, Arauz-Lara J. Interaction of colloidal particles with biologically relevant complex surfaces. Colloids Surf A Physicochem Eng Asp 2019. [DOI: 10.1016/j.colsurfa.2019.123778] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Torres‐Díaz I, Jerri HA, Benczédi D, Bevan MA. Shape Dependent Colloidal Deposition and Detachment. ADVANCED THEORY AND SIMULATIONS 2019. [DOI: 10.1002/adts.201900085] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Isaac Torres‐Díaz
- Chemical & Biomolecular EngineeringJohns Hopkins University Baltimore MD 21218 USA
| | | | - Daniel Benczédi
- Corporate Research Division Firmenich SA., 1217 Meyrin 2 Geneva 1217 Switzerland
| | - Michael A. Bevan
- Chemical & Biomolecular EngineeringJohns Hopkins University Baltimore MD 21218 USA
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Petroff MG, Garcia EA, Dengler RA, Herrera-Alonso M, Bevan MA. kT-Scale Interactions and Stability of Colloids with Adsorbed Zwitterionic and Ethylene Oxide Copolymers. Macromolecules 2018. [DOI: 10.1021/acs.macromol.8b01792] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Affiliation(s)
- Matthew G. Petroff
- Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Elena Alexandra Garcia
- Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Raymond A. Dengler
- Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
| | - Margarita Herrera-Alonso
- Chemical and Biological Engineering, Colorado State University, Fort Collins, Colorado 80523, United States
| | - Michael A. Bevan
- Chemical and Biomolecular Engineering, Johns Hopkins University, Baltimore, Maryland 21218, United States
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