1
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Wood C, Razinkov VI, Qi W, Roberts CJ, Vermant J, Furst EM. Antibodies Adsorbed to the Air-Water Interface Form Soft Glasses. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2023; 39:7775-7782. [PMID: 37222141 PMCID: PMC10249626 DOI: 10.1021/acs.langmuir.3c00616] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/05/2023] [Revised: 05/06/2023] [Indexed: 05/25/2023]
Abstract
When monoclonal antibodies are exposed to an air-water interface, they form aggregates, which negatively impacts their performance. Until now, the detection and characterization of interfacial aggregation have been difficult. Here, we exploit the mechanical response imparted by interfacial adsorption by measuring the interfacial shear rheology of a model antibody, anti-streptavidin immunoglobulin-1 (AS-IgG1), at the air-water interface. Strong viscoelastic layers of AS-IgG1 form when the protein is adsorbed from the bulk solution. Creep experiments correlate the compliance of the interfacial protein layer with the subphase solution pH and bulk concentration. These, along with oscillatory strain amplitude and frequency sweeps, show that the viscoelastic behavior of the adsorbed layers is that of a soft glass with interfacial shear moduli on the order of 10-3 Pa m. Shifting the creep compliance curves under different applied stresses forms master curves consistent with stress-time superposition of soft interfacial glasses. The interfacial rheology results are discussed in the context of the interface-mediated aggregation of AS-IgG1.
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Affiliation(s)
- Caitlin
V. Wood
- Department
of Chemical and Biomolecular Engineering, University of Delaware, Allan P. Colburn Laboratory, 150 Academy Street, Newark, Delaware 19716, United States
| | - Vladimir I. Razinkov
- Drug
Product Development, Amgen Inc., Thousand Oaks, California 91320, United States
| | - Wei Qi
- Drug
Product Development, Amgen Inc., Thousand Oaks, California 91320, United States
| | - Christopher J. Roberts
- Department
of Chemical and Biomolecular Engineering, University of Delaware, Allan P. Colburn Laboratory, 150 Academy Street, Newark, Delaware 19716, United States
| | - Jan Vermant
- Department
of Materials, ETH Zürich, Vladimir-Prelog-Weg 5, Zürich 8093, Switzerland
| | - Eric M. Furst
- Department
of Chemical and Biomolecular Engineering, University of Delaware, Allan P. Colburn Laboratory, 150 Academy Street, Newark, Delaware 19716, United States
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2
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Shimizu Y, Hanasaki I. Partial structural order of gel-forming material detected as multimodal subdiffusion by logarithmic measure. JOURNAL OF PHYSICS. CONDENSED MATTER : AN INSTITUTE OF PHYSICS JOURNAL 2021; 33:455101. [PMID: 34448468 DOI: 10.1088/1361-648x/ac1cb1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 08/11/2021] [Indexed: 06/13/2023]
Abstract
Fibrous nanomaterials suspended in liquid form gel structures when the binding sites between the components reach sufficient number densities. Cellulose nanofibers (CNFs) are one of such nanomaterials, and transparent papers are fabricated by drying their aqueous dispersions. It is therefore important to characterize the wet state, but the specific fluorescent marker molecules are not available for arbitrary CNFs. We report an approach based on the single particle tracking of Brownian probe particles. We focus on the nonuniformity in the Brownian motion to detect the partial structural order between sol and gel, which is nontrivial to characterize. The simple logarithmic measure of diffusive behavior reveals the multimodal nature of Brownian motion depending on the CNF concentration. The subdiffusive behavior by the overall mean squared displacements alone does not tell whether it is caused by confinement in the local environment by CNFs, or binding to single CNFs possibly diffusing in the dispersion. However, the particle-size dependence clarifies that it is not caused by binding but the confinement effect. Furthermore, the logarithmic measure approach enables the detection of overlapping distributions through their heads rather than tails. The detection of partial structural order by rheological non-uniformity of the system with a simple approach will contribute to the further understanding of gel forming materials in general.
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Affiliation(s)
- Yugo Shimizu
- Institute of Engineering, Tokyo University of Agriculture and Technology, Naka-cho 2-24-16, Koganei, Tokyo 184-8588, Japan
| | - Itsuo Hanasaki
- Institute of Engineering, Tokyo University of Agriculture and Technology, Naka-cho 2-24-16, Koganei, Tokyo 184-8588, Japan
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3
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Wood CV, Razinkov VI, Qi W, Furst EM, Roberts CJ. A Rapid, Small-Volume Approach to Evaluate Protein Aggregation at Air-Water Interfaces. J Pharm Sci 2020; 110:1083-1092. [PMID: 33271135 DOI: 10.1016/j.xphs.2020.11.024] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2020] [Revised: 11/14/2020] [Accepted: 11/23/2020] [Indexed: 12/18/2022]
Abstract
Non-native protein aggregation is a common concern for biopharmaceuticals. A given protein may aggregate through a variety of mechanisms that depend on solution and physico-chemical stress conditions. A thorough evaluation of aggregation behavior for a protein under all conditions of interest is necessary to ensure drug safety and efficacy. This work introduces a rapid, small-volume approach to evaluate protein aggregation propensity upon exposure to air-water interfaces (AWI). A microtensiometer apparatus is used to aerate a small volume of a protein solution with microbubbles for short periods of time (≤10 s). Sub-visible particles that form are captured and analyzed using backgrounded membrane imaging. This allows one to capture all particles in the solution while being sample sparing. The surface-mediated aggregation of two model monoclonal antibodies (MAbs) and a globular protein (aCgn) was tested as a function of pH and temperature. Temperature had a negligible effect under the rapid interface turnover time scales with this technique. Electrostatic protein-protein interactions, mediated by pH changes, were more influential for particle formation via AWI. Nonionic surfactants substantially reduced particle formation for all MAb solutions, but not aCgn. The results are contrasted with expectations when exposing samples to much larger air-water interfacial stress.
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Affiliation(s)
- Caitlin V Wood
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716, USA
| | | | - Wei Qi
- Drug Product Development, Amgen, Thousand Oaks, CA 91320, USA
| | - Eric M Furst
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716, USA
| | - Christopher J Roberts
- Department of Chemical and Biomolecular Engineering, University of Delaware, Newark, DE 19716, USA.
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4
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Glagoleva AA, Vasilevskaya VV. Multichain adsorption at fluid interfaces: Amphiphilic homopolymers vs copolymers. J Colloid Interface Sci 2020; 585:408-419. [PMID: 33307309 DOI: 10.1016/j.jcis.2020.11.083] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2020] [Revised: 11/20/2020] [Accepted: 11/21/2020] [Indexed: 11/26/2022]
Abstract
HYPOTHESIS At selective liquid-liquid interface, amphiphilic homopolymers, having groups with different affinity for the liquids in each monomer unit, would demonstrate higher occupation of the interfacial layer than copolymers with various distributions of groups and be advantageous as interface stabilizers. EXPERIMENTS By means of Langevin dynamics computer simulation, conformations of multiple chains of amphiphilic macromolecules adsorbed at the liquid-liquid interface were studied. Monomer units having different affinity for the liquids were distributed variously along the polymer chains. Homopolymers, amphiphilic at the level of an individual monomer unit, and copolymers with random, altermating and multiblock distribution of groups were considered. The surface coverage, structure of the layer, and spatial distribution of monomer units were investigated depending on the polymer concentration. FINDINGS Compared to copolymers with random, alternating and multiblock distributions of the groups, the interfacial layer concentration of amphiphilic homopolymer is about 1.5 times higher, the adsorbed layer is remarkably thinner, has membrane-like structure and is asymmetric with respect to interface boundary. Also, the adsorbed amphiphilic homopolymers form fewer loops and tails, most located on one side of the interface. This combination of properties is promising for practical application in modern self-assembling molecular devices.
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Affiliation(s)
- A A Glagoleva
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilova ul. 28, Moscow 119991, Russia.
| | - V V Vasilevskaya
- A. N. Nesmeyanov Institute of Organoelement Compounds of Russian Academy of Sciences, Vavilova ul. 28, Moscow 119991, Russia.
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5
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Calabrase W, Bishop LDC, Dutta C, Misiura A, Landes CF, Kisley L. Transforming Separation Science with Single-Molecule Methods. Anal Chem 2020; 92:13622-13629. [PMID: 32936608 DOI: 10.1021/acs.analchem.0c02572] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Empirical optimization of the multiscale parameters underlying chromatographic and membrane separations leads to enormous resource waste and production costs. A bottom-up approach to understand the physical phenomena underlying challenges in separations is possible with single-molecule observations of solute-stationary phase interactions. We outline single-molecule fluorescence techniques that can identify key interactions under ambient conditions. Next, we describe how studying increasingly complex samples heightens the relevance of single-molecule results to industrial applications. Finally, we illustrate how separation methods that have not been studied at the single-molecule scale can be advanced, using chiral chromatography as an example case. We hope new research directions based on a molecular approach to separations will emerge based on the ideas, technologies, and open scientific questions presented in this Perspective.
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Affiliation(s)
- William Calabrase
- Department of Physics, Case Western Reserve University, Cleveland, Ohio 44106, United States
| | - Logan D C Bishop
- Department of Chemistry, Rice University, Houston, Texas 77251, United States
| | - Chayan Dutta
- Department of Chemistry, Rice University, Houston, Texas 77251, United States
| | - Anastasiia Misiura
- Department of Chemistry, Rice University, Houston, Texas 77251, United States
| | - Christy F Landes
- Department of Chemistry, Rice University, Houston, Texas 77251, United States.,Department of Electrical and Computer Engineering, Rice University, Houston, Texas 77251, United States.,Department of Chemical and Biomolecular Engineering, Rice University, Houston, Texas 77251, United States.,Smalley-Curl Institute, Rice University, Houston, Texas 77251, United States
| | - Lydia Kisley
- Department of Physics, Case Western Reserve University, Cleveland, Ohio 44106, United States.,Department of Chemistry, Case Western Reserve University, Cleveland, Ohio 44106, United States
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6
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Wood CV, McEvoy S, Razinkov VI, Qi W, Furst EM, Roberts CJ. Kinetics and Competing Mechanisms of Antibody Aggregation via Bulk- and Surface-Mediated Pathways. J Pharm Sci 2020; 109:1449-1459. [DOI: 10.1016/j.xphs.2020.01.005] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 12/20/2019] [Accepted: 01/03/2020] [Indexed: 11/24/2022]
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7
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Chen M, Sagis LM. The influence of protein/phospholipid ratio on the physicochemical and interfacial properties of biomimetic milk fat globules. Food Hydrocoll 2019. [DOI: 10.1016/j.foodhyd.2019.105179] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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8
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Zhang Q, Zhu L, Hou T, Chang H, Bai Q, Zhao J, Liang D. Crowding and Confinement Effects in Different Polymer Concentration Regimes and Their Roles in Regulating the Growth of Nanotubes. Macromolecules 2019. [DOI: 10.1021/acs.macromol.9b00240] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Qiufen Zhang
- Beijing National Laboratory for Molecular Sciences, Department of Polymer Science and Engineering and the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Lin Zhu
- Beijing National Laboratory for Molecular Sciences, Department of Polymer Science and Engineering and the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Tianhao Hou
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Haojing Chang
- Beijing National Laboratory for Molecular Sciences, Department of Polymer Science and Engineering and the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Qingwen Bai
- Beijing National Laboratory for Molecular Sciences, Department of Polymer Science and Engineering and the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Jiang Zhao
- Beijing National Laboratory for Molecular Sciences, Institute of Chemistry, Chinese Academy of Sciences, Beijing 100190, China
| | - Dehai Liang
- Beijing National Laboratory for Molecular Sciences, Department of Polymer Science and Engineering and the Key Laboratory of Polymer Chemistry and Physics of the Ministry of Education, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
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9
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Lu X, Zheng K, Yang J, Zhao J. Probing the interplay between chain diffusion and polymer crystal growth under nanoscale confinement: a study by single molecule fluorescence microscopy. Sci China Chem 2018. [DOI: 10.1007/s11426-018-9290-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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10
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Moringo NA, Shen H, Bishop LDC, Wang W, Landes CF. Enhancing Analytical Separations Using Super-Resolution Microscopy. Annu Rev Phys Chem 2018; 69:353-375. [PMID: 29490205 DOI: 10.1146/annurev-physchem-052516-045018] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Super-resolution microscopy is becoming an invaluable tool to investigate structure and dynamics driving protein interactions at interfaces. In this review, we highlight the applications of super-resolution microscopy for quantifying the physics and chemistry that occur between target proteins and stationary-phase supports during chromatographic separations. Our discussion concentrates on the newfound ability of super-resolved single-protein spectroscopy to inform theoretical parameters via quantification of adsorption-desorption dynamics, protein unfolding, and nanoconfined transport.
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Affiliation(s)
| | - Hao Shen
- Department of Chemistry, Rice University, Houston, Texas 77251, USA;
| | - Logan D C Bishop
- Department of Chemistry, Rice University, Houston, Texas 77251, USA;
| | - Wenxiao Wang
- Department of Electrical and Computer Engineering, Rice University, Houston, Texas 77251, USA
| | - Christy F Landes
- Department of Chemistry, Rice University, Houston, Texas 77251, USA; .,Department of Electrical and Computer Engineering, Rice University, Houston, Texas 77251, USA.,Smalley-Curl Institute, Rice University, Houston, Texas 77251, USA
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11
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Moringo NA, Shen H, Tauzin LJ, Wang W, Bishop LDC, Landes CF. Variable Lysozyme Transport Dynamics on Oxidatively Functionalized Polystyrene Films. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2017; 33:10818-10828. [PMID: 28937222 DOI: 10.1021/acs.langmuir.7b02641] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Tuning protein adsorption dynamics at polymeric interfaces is of great interest to many biomedical and material applications. Functionalization of polymer surfaces is a common method to introduce application-specific surface chemistries to a polymer interface. In this work, single-molecule fluorescence microscopy is utilized to determine the adsorption dynamics of lysozyme, a well-studied antibacterial protein, at the interface of polystyrene oxidized via UV exposure and oxygen plasma and functionalized by ligand grafting to produce varying degrees of surface hydrophilicity, surface roughness, and induced oxygen content. Single-molecule tracking indicates lysozyme loading capacities, and surface mobility at the polymer interface is hindered as a result of all functionalization techniques. Adsorption dynamics of lysozyme depend on the extent and the specificity of the oxygen functionalities introduced to the polystyrene surface. Hindered adsorption and mobility are dominated by hydrophobic effects attributed to water hydration layer formation at the functionalized polystyrene surfaces.
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Affiliation(s)
- Nicholas A Moringo
- Department of Chemistry, ‡Department of Electrical and Computer Engineering, and §Smalley-Curl Institute, Rice University , Houston, Texas 77251, United States
| | - Hao Shen
- Department of Chemistry, ‡Department of Electrical and Computer Engineering, and §Smalley-Curl Institute, Rice University , Houston, Texas 77251, United States
| | - Lawrence J Tauzin
- Department of Chemistry, ‡Department of Electrical and Computer Engineering, and §Smalley-Curl Institute, Rice University , Houston, Texas 77251, United States
| | - Wenxiao Wang
- Department of Chemistry, ‡Department of Electrical and Computer Engineering, and §Smalley-Curl Institute, Rice University , Houston, Texas 77251, United States
| | - Logan D C Bishop
- Department of Chemistry, ‡Department of Electrical and Computer Engineering, and §Smalley-Curl Institute, Rice University , Houston, Texas 77251, United States
| | - Christy F Landes
- Department of Chemistry, ‡Department of Electrical and Computer Engineering, and §Smalley-Curl Institute, Rice University , Houston, Texas 77251, United States
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12
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Shen H, Tauzin LJ, Baiyasi R, Wang W, Moringo N, Shuang B, Landes CF. Single Particle Tracking: From Theory to Biophysical Applications. Chem Rev 2017; 117:7331-7376. [PMID: 28520419 DOI: 10.1021/acs.chemrev.6b00815] [Citation(s) in RCA: 264] [Impact Index Per Article: 37.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
After three decades of developments, single particle tracking (SPT) has become a powerful tool to interrogate dynamics in a range of materials including live cells and novel catalytic supports because of its ability to reveal dynamics in the structure-function relationships underlying the heterogeneous nature of such systems. In this review, we summarize the algorithms behind, and practical applications of, SPT. We first cover the theoretical background including particle identification, localization, and trajectory reconstruction. General instrumentation and recent developments to achieve two- and three-dimensional subdiffraction localization and SPT are discussed. We then highlight some applications of SPT to study various biological and synthetic materials systems. Finally, we provide our perspective regarding several directions for future advancements in the theory and application of SPT.
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Affiliation(s)
- Hao Shen
- Department of Chemistry and ‡Department of Electrical and Computer Engineering, §Smalley-Curl Institute, Rice University , Houston, Texas 77251, United States
| | - Lawrence J Tauzin
- Department of Chemistry and ‡Department of Electrical and Computer Engineering, §Smalley-Curl Institute, Rice University , Houston, Texas 77251, United States
| | - Rashad Baiyasi
- Department of Chemistry and ‡Department of Electrical and Computer Engineering, §Smalley-Curl Institute, Rice University , Houston, Texas 77251, United States
| | - Wenxiao Wang
- Department of Chemistry and ‡Department of Electrical and Computer Engineering, §Smalley-Curl Institute, Rice University , Houston, Texas 77251, United States
| | - Nicholas Moringo
- Department of Chemistry and ‡Department of Electrical and Computer Engineering, §Smalley-Curl Institute, Rice University , Houston, Texas 77251, United States
| | - Bo Shuang
- Department of Chemistry and ‡Department of Electrical and Computer Engineering, §Smalley-Curl Institute, Rice University , Houston, Texas 77251, United States
| | - Christy F Landes
- Department of Chemistry and ‡Department of Electrical and Computer Engineering, §Smalley-Curl Institute, Rice University , Houston, Texas 77251, United States
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13
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Popova H, Milchev A, Egorov SA. Modeling the interfacial tension dependence on composition and stiffness of nonionic surfactants on liquid–liquid interfaces. Colloids Surf A Physicochem Eng Asp 2017. [DOI: 10.1016/j.colsurfa.2016.05.056] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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14
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Wen B, Sun C, Bai B, Gatapova EY, Kabov OA. Ionic hydration-induced evolution of decane–water interfacial tension. Phys Chem Chem Phys 2017; 19:14606-14614. [DOI: 10.1039/c7cp01826f] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
We show that ionic hydration is responsible for the non-monotonic variation of the interfacial tension with increasing ionic concentration.
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Affiliation(s)
- Boyao Wen
- State Key Laboratory of Multiphase Flow in Power Engineering
- Xi'an Jiaotong University
- Xian
- China
| | - Chengzhen Sun
- State Key Laboratory of Multiphase Flow in Power Engineering
- Xi'an Jiaotong University
- Xian
- China
| | - Bofeng Bai
- State Key Laboratory of Multiphase Flow in Power Engineering
- Xi'an Jiaotong University
- Xian
- China
| | - Elizaveta Ya. Gatapova
- Kutateladze Institute of Thermophysics
- Siberian Branch of the Russian Academy of Sciences
- Novosibirsk 630090
- Russia
- Novosibirsk State University
| | - Oleg A. Kabov
- Kutateladze Institute of Thermophysics
- Siberian Branch of the Russian Academy of Sciences
- Novosibirsk 630090
- Russia
- Novosibirsk State University
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15
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Shuang B, Wang W, Shen H, Tauzin LJ, Flatebo C, Chen J, Moringo NA, Bishop LDC, Kelly KF, Landes CF. Generalized recovery algorithm for 3D super-resolution microscopy using rotating point spread functions. Sci Rep 2016; 6:30826. [PMID: 27488312 PMCID: PMC4973222 DOI: 10.1038/srep30826] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2016] [Accepted: 07/11/2016] [Indexed: 01/17/2023] Open
Abstract
Super-resolution microscopy with phase masks is a promising technique for 3D imaging and tracking. Due to the complexity of the resultant point spread functions, generalized recovery algorithms are still missing. We introduce a 3D super-resolution recovery algorithm that works for a variety of phase masks generating 3D point spread functions. A fast deconvolution process generates initial guesses, which are further refined by least squares fitting. Overfitting is suppressed using a machine learning determined threshold. Preliminary results on experimental data show that our algorithm can be used to super-localize 3D adsorption events within a porous polymer film and is useful for evaluating potential phase masks. Finally, we demonstrate that parallel computation on graphics processing units can reduce the processing time required for 3D recovery. Simulations reveal that, through desktop parallelization, the ultimate limit of real-time processing is possible. Our program is the first open source recovery program for generalized 3D recovery using rotating point spread functions.
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Affiliation(s)
- Bo Shuang
- Department of Chemistry, Rice University, Houston, TX 77251, USA
| | - Wenxiao Wang
- Department of Electrical and Computer Engineering, Rice University, Houston, TX 77251, USA
| | - Hao Shen
- Department of Chemistry, Rice University, Houston, TX 77251, USA
| | | | | | - Jianbo Chen
- Department of Electrical and Computer Engineering, Rice University, Houston, TX 77251, USA
| | | | | | - Kevin F. Kelly
- Department of Electrical and Computer Engineering, Rice University, Houston, TX 77251, USA
| | - Christy F. Landes
- Department of Chemistry, Rice University, Houston, TX 77251, USA
- Department of Electrical and Computer Engineering, Rice University, Houston, TX 77251, USA
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16
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Tauzin LJ, Shen H, Moringo NA, Roddy MH, Bothof CA, Griesgraber GW, McNulty AK, Rasmussen JK, Landes CF. Variable surface transport modalities on functionalized nylon films revealed with single molecule spectroscopy. RSC Adv 2016. [DOI: 10.1039/c5ra25592a] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Functionalization of separation membranes with ion-exchange ligands allows control of the surface mobility of protein molecules facilitating optimized membrane design.
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Affiliation(s)
| | - Hao Shen
- Department of Chemistry
- Rice University
- Houston
- USA
| | | | | | - Cathy A. Bothof
- 3M Corporate Research Laboratories
- 3M Center 201-3E-03
- St. Paul
- USA
| | | | - Amy K. McNulty
- 3M Corporate Research Laboratories
- 3M Center 201-3E-03
- St. Paul
- USA
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17
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Dickinson E. Exploring the frontiers of colloidal behaviour where polymers and particles meet. Food Hydrocoll 2016. [DOI: 10.1016/j.foodhyd.2015.07.029] [Citation(s) in RCA: 65] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
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