1
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Khamees N. The impact of media supplement on the viability, proliferation, and differentiation potential of bone marrow-derived mesenchymal stem cells. MUSTANSIRIYA MEDICAL JOURNAL 2022. [DOI: 10.4103/mj.mj_49_22] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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2
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Zhang X, van Rijt S. 2D biointerfaces to study stem cell-ligand interactions. Acta Biomater 2021; 131:80-96. [PMID: 34237424 DOI: 10.1016/j.actbio.2021.06.044] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 06/18/2021] [Accepted: 06/28/2021] [Indexed: 02/07/2023]
Abstract
Stem cells have great potential in the field of tissue engineering and regenerative medicine due to their inherent regenerative capabilities. However, an ongoing challenge within their clinical translation is to elicit or predict the desired stem cell behavior once transplanted. Stem cell behavior and function are regulated by their interaction with biophysical and biochemical signals present in their natural environment (i.e., stem cell niches). To increase our understanding about the interplay between stem cells and their resident microenvironments, biointerfaces have been developed as tools to study how these substrates can affect stem cell behaviors. This article aims to review recent developments on fabricating cell-instructive interfaces to control cell adhesion processes towards directing stem cell behavior. After an introduction on stem cells and their natural environment, static surfaces exhibiting predefined biochemical signals to probe the effect of chemical features on stem cell behaviors are discussed. In the third section, we discuss more complex dynamic platforms able to display biochemical cues with spatiotemporal control using on-off ligand display, reversible ligand display, and ligand mobility. In the last part of the review, we provide the reader with an outlook on future designs of biointerfaces. STATEMENT OF SIGNIFICANCE: Stem cells have great potential as treatments for many degenerative disorders prevalent in our aging societies. However, an ongoing challenge within their clinical translation is to promote stem cell mediated regeneration once they are transplanted in the body. Stem cells reside within our bodies where their behavior and function are regulated by interactions with their natural environment called the stem cell niche. To increase our understanding about the interplay between stem cells and their niche, 2D materials have been developed as tools to study how specific signals can affect stem cell behaviors. This article aims to review recent developments on fabricating cell-instructive interfaces to control cell adhesion processes towards directing stem cell behavior.
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3
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Sun X, Bai Y, Zheng X, Li X, Zhou Y, Wang Y, Heng BC, Zhang X. Bone Piezoelectricity-Mimicking Nanocomposite Membranes Enhance Osteogenic Differentiation of Bone Marrow Mesenchymal Stem Cells by Amplifying Cell Adhesion and Actin Cytoskeleton. J Biomed Nanotechnol 2021; 17:1058-1067. [PMID: 34167620 DOI: 10.1166/jbn.2021.3090] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Ferroelectric biomaterials have been widely investigated and demonstrated to enhance osteogenesis by simulating the inherent electrical properties of bone tissues. Nevertheless, the underlying biological processes are still not wellunderstood. Hence, this study investigated the underlying biological processes by which bone piezoelectricity-mimicking barium titanate/poly(vinylidene fluoride-trifluoroethylene) nanocomposite membranes (BTO nanocomposite membranes) promote osteogenesis of Bone Marrow Mesenchymal Stem Cells (BMSCs). Ourresults revealed that the piezoelectric coefficient (d33) of nanocomposite membranes aftercontrolled corona poling was similar to that of native bone, and exhibited highly-stable piezoelectrical properties and concentrated surface electrical potential. These nanocomposite membranes significantly enhanced the adhesion and spreading of BMSCs, which was manifested as increased number and area of mature focal adhesions. Furthermore, the nanocomposite membranes significantly promoted the expression of integrin receptors genes (α1, α5 andβ3), which in turn enhanced osteogenesis of BMSCs, as manifested by upregulated Alkaline Phosphatase (ALP) and Bone Morphogenetic Protein 2 (BMP2) expression levels. Further investigations found that the Focal Adhesion Kinase (FAK)-Extracellular Signal-Regulated Kinase1/2 (ERK 1/2) signaling axis may be involved in the biological process of polarized nanocomposite membrane-induced osteogenesis. This study thus provides useful insights for betterunderstanding of the biological processes by which piezoelectric or ferroelectric biomaterials promote osteogenesis.
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Affiliation(s)
- Xiaowen Sun
- Department of Dental Materials & Dental Medical Devices Testing Center, Peking University School and Hospital of Stomatology, Beijing, 100081, PR China
| | - Yunyang Bai
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, PR China
| | - Xiaona Zheng
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, PR China
| | - Xiaochan Li
- Department of Geriatric Dentistry, Peking University School and Hospital of Stomatology, Beijing, 100081, PR China
| | - Yingying Zhou
- Department of Medical Technology, Peking University Health Science Center, Beijing, 100081, PR China
| | - Yijun Wang
- Department of Medical Technology, Peking University Health Science Center, Beijing, 100081, PR China
| | - Boon Chin Heng
- Central Laboratory, Peking University School and Hospital of Stomatology, Beijing, 100081, PR China
| | - Xuehui Zhang
- Department of Dental Materials & Dental Medical Devices Testing Center, Peking University School and Hospital of Stomatology, Beijing, 100081, PR China
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4
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Li M, Zhang P, Zhang D. PVDF piezoelectric neural conduit incorporated pre-differentiated adipose-derived stem cells may accelerate the repair of peripheral nerve injury. Med Hypotheses 2018; 114:55-57. [DOI: 10.1016/j.mehy.2018.02.027] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 02/22/2018] [Accepted: 02/22/2018] [Indexed: 12/22/2022]
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5
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Zhang D, Lee J, Kilian KA. Synthetic Biomaterials to Rival Nature's Complexity-a Path Forward with Combinatorics, High-Throughput Discovery, and High-Content Analysis. Adv Healthc Mater 2017; 6. [PMID: 28841770 DOI: 10.1002/adhm.201700535] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2017] [Revised: 06/08/2017] [Indexed: 12/18/2022]
Abstract
Cells in tissue receive a host of soluble and insoluble signals in a context-dependent fashion, where integration of these cues through a complex network of signal transduction cascades will define a particular outcome. Biomaterials scientists and engineers are tasked with designing materials that can at least partially recreate this complex signaling milieu towards new materials for biomedical applications. In this progress report, recent advances in high throughput techniques and high content imaging approaches that are facilitating the discovery of efficacious biomaterials are described. From microarrays of synthetic polymers, peptides and full-length proteins, to designer cell culture systems that present multiple biophysical and biochemical cues in tandem, it is discussed how the integration of combinatorics with high content imaging and analysis is essential to extracting biologically meaningful information from large scale cellular screens to inform the design of next generation biomaterials.
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Affiliation(s)
- Douglas Zhang
- Department of Materials Science and Engineering; University of Illinois at Urbana-Champaign; Urbana Illinois 61801
| | - Junmin Lee
- Department of Materials Science and Engineering; University of Illinois at Urbana-Champaign; Urbana Illinois 61801
| | - Kristopher A. Kilian
- Department of Materials Science and Engineering; University of Illinois at Urbana-Champaign; Urbana Illinois 61801
- Department of Bioengineering; University of Illinois at Urbana-Champaign; Urbana Illinois 61801
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6
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Pantaine L, Humblot V, Coeffard V, Vallée A. Sulfamide chemistry applied to the functionalization of self-assembled monolayers on gold surfaces. Beilstein J Org Chem 2017; 13:648-658. [PMID: 28487759 PMCID: PMC5389194 DOI: 10.3762/bjoc.13.64] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Accepted: 03/13/2017] [Indexed: 01/10/2023] Open
Abstract
Aniline-terminated self-assembled monolayers (SAMs) on gold surfaces have successfully reacted with ArSO2NHOSO2Ar (Ar = 4-MeC6H4 or 4-FC6H4) resulting in monolayers with sulfamide moieties and different end groups. Moreover, the sulfamide groups on the SAMs can be hydrolyzed showing the partial regeneration of the aniline surface. SAMs were characterized by water contact angle (WCA) measurements, Fourier-transform infrared reflection absorption spectroscopy (IRRAS) and X-ray photoelectron spectroscopy (XPS).
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Affiliation(s)
- Loïc Pantaine
- Institut Lavoisier de Versailles, UMR 8180, Université Paris-Saclay, Université de Versailles Saint-Quentin, 45 avenue des Etats-Unis, 78035 Versailles Cedex, France
| | - Vincent Humblot
- Sorbonne Universités, UPMC Univ. Paris 06, Laboratoire de Réactivité de Surface, UMR CNRS 7197, 4 place Jussieu, 75005 Paris, France
| | - Vincent Coeffard
- Université de Nantes, CNRS, CEISAM, UMR 6230, Faculté des Sciences et des Techniques, rue de la Houssinière, BP 92208, 44322 Nantes Cedex 3, France
| | - Anne Vallée
- Institut Lavoisier de Versailles, UMR 8180, Université Paris-Saclay, Université de Versailles Saint-Quentin, 45 avenue des Etats-Unis, 78035 Versailles Cedex, France
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7
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Hadden WJ, Choi YS. The extracellular microscape governs mesenchymal stem cell fate. J Biol Eng 2016; 10:16. [PMID: 27895704 PMCID: PMC5117578 DOI: 10.1186/s13036-016-0037-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/06/2016] [Accepted: 11/09/2016] [Indexed: 12/15/2022] Open
Abstract
Each cell forever interacts with its extracellular matrix (ECM); a stem cell relies on this interaction to guide differentiation. The stiffness, nanotopography, protein composition, stress and strain inherent to any given ECM influences stem cell lineage commitment. This interaction is dynamic, multidimensional and reciprocally evolving through time, and from this concerted exchange the macroscopic tissues that comprise living organisms are formed. Mesenchymal stem cells can give rise to bone, cartilage, tendon and muscle; thus attempts to manipulate their differentiation must heed the physical properties of incredibly complex native microenvironments to realize regenerative goals.
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Affiliation(s)
- William J Hadden
- University of Sydney Medical School & Kolling Institute of Medical Research, Sydney, NSW Australia
| | - Yu Suk Choi
- School of Anatomy, Physiology and Human Biology, University of Western Australia, Entrance 2, Hackett Dr, M309, Level 1, Crawley, WA 6009 Australia
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8
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Haugh MG, Heilshorn SC. Integrating Concepts of Material Mechanics, Ligand Chemistry, Dimensionality and Degradation to Control Differentiation of Mesenchymal Stem Cells. CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE 2016; 20:171-179. [PMID: 28458610 PMCID: PMC5404745 DOI: 10.1016/j.cossms.2016.04.001] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
The role of substrate mechanics in guiding mesenchymal stem cell (MSC) fate has been the focus of much research over the last decade. More recently, the complex interplay between substrate mechanics and other material properties such as ligand chemistry and substrate degradability to regulate MSC differentiation has begun to be elucidated. Additionally, there are several changes in the presentation of these material properties as the dimensionality is altered from two- to three-dimensional substrates, which may fundamentally alter our understanding of substrate-induced mechanotransduction processes. In this review, an overview of recent findings that highlight the material properties that are important in guiding MSC fate decisions is presented, with a focus on underlining gaps in our existing knowledge and proposing potential directions for future research.
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Affiliation(s)
- Matthew G. Haugh
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, USA
- Tissue Engineering Research Group, Department of Anatomy, Royal College of Surgeons in Ireland, 123 St. Stephens Green, Dublin 2, Dublin, Ireland
| | - Sarah C. Heilshorn
- Department of Materials Science and Engineering, Stanford University, Stanford, CA, USA
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9
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A molecular smart surface for spatio-temporal studies of cell mobility. PLoS One 2015; 10:e0118126. [PMID: 26030281 PMCID: PMC4452080 DOI: 10.1371/journal.pone.0118126] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2014] [Accepted: 01/07/2015] [Indexed: 11/19/2022] Open
Abstract
Active migration in both healthy and malignant cells requires the integration of information derived from soluble signaling molecules with positional information gained from interactions with the extracellular matrix and with other cells. How a cell responds and moves involves complex signaling cascades that guide the directional functions of the cytoskeleton as well as the synthesis and release of proteases that facilitate movement through tissues. The biochemical events of the signaling cascades occur in a spatially and temporally coordinated manner then dynamically shape the cytoskeleton in specific subcellular regions. Therefore, cell migration and invasion involve a precise but constantly changing subcellular nano-architecture. A multidisciplinary effort that combines new surface chemistry and cell biological tools is required to understand the reorganization of cytoskeleton triggered by complex signaling during migration. Here we generate a class of model substrates that modulate the dynamic environment for a variety of cell adhesion and migration experiments. In particular, we use these dynamic substrates to probe in real-time how the interplay between the population of cells, the initial pattern geometry, ligand density, ligand affinity and integrin composition affects cell migration and growth. Whole genome microarray analysis indicates that several classes of genes ranging from signal transduction to cytoskeletal reorganization are differentially regulated depending on the nature of the surface conditions.
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10
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Kim T, Sridharan I, Zhu B, Orgel J, Wang R. Effect of CNT on collagen fiber structure, stiffness assembly kinetics and stem cell differentiation. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2015; 49:281-289. [PMID: 25686951 PMCID: PMC7225775 DOI: 10.1016/j.msec.2015.01.014] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Revised: 11/07/2014] [Accepted: 01/04/2015] [Indexed: 11/27/2022]
Abstract
Collagen is a native one-dimensional nanomaterial. Carbon nanotube (CNT) was found to interface with biological materials and show promising applications in creating reinforced scaffolds for tissue engineering and regenerative medicine. In this study, we examined the unique role of CNT in collagen fiber structure, mechanical strength and assembly kinetics. The results imply that CNT interacts with collagen at the molecular level. It relaxes the helical coil of collagen fibrils and has the effect of flattening the fibers leading to the elongation of D-period, the characteristic banding feature of collagen fibers. The surface charge of oxidized CNT leads to enhanced local ionic strength during collagen fibrillogenesis, accounting for the slower kinetics of collagen-CNT (COL-CNT) fiber assembly and the formation of thicker fibers. Due to the rigidity of CNT, the addition of CNT increases the fiber stiffness significantly. When applied as a matrix for human decidua parietalis placental stem cells (hdpPSCs) differentiation, COL-CNT was found to support fast and efficient neural differentiation ascribed to the elongated D-period. These results highlight the superiority of CNT to modulate collagen fiber assembly at the molecular level. The study also exemplifies the use of CNT to enhance the functionality of collagen for biological and biomedical applications.
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Affiliation(s)
- Taeyoung Kim
- Department of Biological and Chemical Sciences, Illinois Institute of Technology, 3101S. Dearborn St., Chicago, IL 60616, USA
| | - Indumathi Sridharan
- Department of Biological and Chemical Sciences, Illinois Institute of Technology, 3101S. Dearborn St., Chicago, IL 60616, USA
| | - Bofan Zhu
- Department of Biological and Chemical Sciences, Illinois Institute of Technology, 3101S. Dearborn St., Chicago, IL 60616, USA
| | - Joseph Orgel
- Department of Biological and Chemical Sciences, Illinois Institute of Technology, 3101S. Dearborn St., Chicago, IL 60616, USA
| | - Rong Wang
- Department of Biological and Chemical Sciences, Illinois Institute of Technology, 3101S. Dearborn St., Chicago, IL 60616, USA.
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11
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Viswanathan P, Ondeck MG, Chirasatitsin S, Ngamkham K, Reilly GC, Engler AJ, Battaglia G. 3D surface topology guides stem cell adhesion and differentiation. Biomaterials 2015; 52:140-7. [PMID: 25818420 DOI: 10.1016/j.biomaterials.2015.01.034] [Citation(s) in RCA: 133] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2014] [Revised: 12/30/2014] [Accepted: 01/20/2015] [Indexed: 12/12/2022]
Abstract
Polymerized high internal phase emulsion (polyHIPE) foams are extremely versatile materials for investigating cell-substrate interactions in vitro. Foam morphologies can be controlled by polymerization conditions to result in either open or closed pore structures with different levels of connectivity, consequently enabling the comparison between 2D and 3D matrices using the same substrate with identical surface chemistry conditions. Additionally, here we achieve the control of pore surface topology (i.e. how different ligands are clustered together) using amphiphilic block copolymers as emulsion stabilizers. We demonstrate that adhesion of human mesenchymal progenitor (hES-MP) cells cultured on polyHIPE foams is dependent on foam surface topology and chemistry but is independent of porosity and interconnectivity. We also demonstrate that the interconnectivity, architecture and surface topology of the foams has an effect on the osteogenic differentiation potential of hES-MP cells. Together these data demonstrate that the adhesive heterogeneity of a 3D scaffold could regulate not only mesenchymal stem cell attachment but also cell behavior in the absence of soluble growth factors.
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Affiliation(s)
- Priyalakshmi Viswanathan
- Krebs Institute, The University of Sheffield, Sheffield S10 2TN, UK; Department of Biomedical Sciences, The University of Sheffield, Sheffield S10 2TN, UK
| | - Matthew G Ondeck
- Sanford Consortium for Regenerative Medicine, University of California, San Diego, La Jolla, CA 92037, USA; Material Science Program, University of California, San Diego, La Jolla, CA 92093, USA
| | - Somyot Chirasatitsin
- Department of Bioengineering, University of California, San Diego, La Jolla, CA 92093, USA
| | - Kamolchanok Ngamkham
- Department of Chemistry, University College London, London WC1H 0AJ, UK; The MRC/UCL Centre for Medical Molecular Virology, University College London, London WC1H 0AJ, UK
| | - Gwendolen C Reilly
- Department of Materials Science and Engineering, Insigneo Institute for in silico Medicine, The University of Sheffield, Sheffield S1 3JD, UK
| | - Adam J Engler
- Sanford Consortium for Regenerative Medicine, University of California, San Diego, La Jolla, CA 92037, USA; Material Science Program, University of California, San Diego, La Jolla, CA 92093, USA; Department of Bioengineering, University of California, San Diego, La Jolla, CA 92093, USA.
| | - Giuseppe Battaglia
- Department of Chemistry, University College London, London WC1H 0AJ, UK; The MRC/UCL Centre for Medical Molecular Virology, University College London, London WC1H 0AJ, UK.
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12
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Pulsipher A, Park S, Dutta D, Luo W, Yousaf MN. In situ modulation of cell behavior via smart dual-ligand surfaces. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2014; 30:13656-66. [PMID: 25373713 PMCID: PMC4334223 DOI: 10.1021/la503521x] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Due to the highly complex nature of the extracellular matrix (ECM), the design and implementation of dynamic, stimuli-responsive surfaces that present well-defined ligands and serve as model ECM substrates have been of tremendous interest to biomaterials, biosensor, and cell biology communities. Such tools provide strategies for identifying specific ligand-receptor interactions that induce vital biological consequences. Herein, we report a novel dual-ligand-presenting surface methodology that modulates dynamic ECM properties to investigate various cell behaviors. Peptides PHSRN, cRGD, and KKKTTK, which mimic the cell- and heparan sulfate-binding domains of fibronectin, and carbohydrates Gal and Man were combined with cell adhesive RGD to survey possible synergistic or antagonist ligand effects on cell adhesion, spreading, growth, and migration. Soluble molecule and enzymatic inhibition assays were also performed, and the levels of focal adhesion kinase in cells subjected to different ligand combinations were quantified. A redox-responsive trigger was incorporated into this surface strategy to spontaneously release ligands in the presence of adhered cells, and cell spreading, growth, and migration responses were measured and compared. The identity and nature of the dual-ligand combination directly influenced cell behavior.
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Affiliation(s)
- Abigail Pulsipher
- Department
of Chemistry, University of North Carolina
at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Sungjin Park
- Department
of Chemistry, University of North Carolina
at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Debjit Dutta
- Department
of Chemistry, University of North Carolina
at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Wei Luo
- Department
of Chemistry, University of North Carolina
at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
- Department
of Chemistry and Biology, York University, Toronto, Ontario M3J 1P3, Canada
| | - Muhammad N. Yousaf
- Department
of Chemistry, University of North Carolina
at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
- Department
of Chemistry and Biology, York University, Toronto, Ontario M3J 1P3, Canada
- E-mail: . Tel: (416) 736-2100, ext
77718
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13
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Abstract
A new strategy to create a dynamic scaffold for three-dimensional (3D) cell experiments based on a photo-activated cell adhesive peptide ligand is described. After polymerization, the inert matrix becomes cell adhesive by chemoselective modification through the conjugation of oxyamine-terminated ligands. Furthermore, spatial and temporal control of cell culture within the 3D matrix was achieved by the use of a biospecific photoprotected peptide and visualized by confocal microscopy.
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14
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Luo W, Pulsipher A, Dutta D, Lamb BM, Yousaf MN. Remote control of tissue interactions via engineered photo-switchable cell surfaces. Sci Rep 2014; 4:6313. [PMID: 25204325 PMCID: PMC4159631 DOI: 10.1038/srep06313] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Accepted: 08/01/2014] [Indexed: 01/08/2023] Open
Abstract
We report a general cell surface molecular engineering strategy via liposome fusion delivery to create a dual photo-active and bio-orthogonal cell surface for remote controlled spatial and temporal manipulation of microtissue assembly and disassembly. Cell surface tailoring of chemoselective functional groups was achieved by a liposome fusion delivery method and quantified by flow cytometry and characterized by a new cell surface lipid pull down mass spectrometry strategy. Dynamic co-culture spheroid tissue assembly in solution and co-culture tissue multilayer assembly on materials was demonstrated by an intercellular photo-oxime ligation that could be remotely cleaved and disassembled on demand. Spatial and temporal control of microtissue structures containing multiple cell types was demonstrated by the generation of patterned multilayers for controlling stem cell differentiation. Remote control of cell interactions via cell surface engineering that allows for real-time manipulation of tissue dynamics may provide tools with the scope to answer fundamental questions of cell communication and initiate new biotechnologies ranging from imaging probes to drug delivery vehicles to regenerative medicine, inexpensive bioreactor technology and tissue engineering therapies.
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Affiliation(s)
- Wei Luo
- Department of Chemistry, Carolina Center for Genome Science, Carolina Center for Cancer Nanotechnology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
- Department of Chemistry and Biology, Centre for Research in Biomolecular Interactions, York University, Toronto, Ontario, M3J 1P3, Canada
| | - Abigail Pulsipher
- Department of Chemistry, Carolina Center for Genome Science, Carolina Center for Cancer Nanotechnology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Debjit Dutta
- Department of Chemistry, Carolina Center for Genome Science, Carolina Center for Cancer Nanotechnology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Brian M. Lamb
- Department of Chemistry, Carolina Center for Genome Science, Carolina Center for Cancer Nanotechnology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
| | - Muhammad N. Yousaf
- Department of Chemistry, Carolina Center for Genome Science, Carolina Center for Cancer Nanotechnology, The University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
- Department of Chemistry and Biology, Centre for Research in Biomolecular Interactions, York University, Toronto, Ontario, M3J 1P3, Canada
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15
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Zhang D, Kilian KA. Peptide microarrays for the discovery of bioactive surfaces that guide cellular processes: a single step azide-alkyne "click" chemistry approach. J Mater Chem B 2014; 2:4280-4288. [PMID: 32261566 DOI: 10.1039/c4tb00375f] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Cell behavior in vivo is guided by a complex microenvironment containing many different molecules including extracellular matrix (ECM) proteins, growth factors, and proteoglycans. Controlling the interaction between these various components at the cell-material interface will be invaluable in developing new materials for biomedical devices and tissue engineering applications. We report a single step approach to forming mixed peptide conjugated self-assembled monolayers on gold using copper-catalyzed azide-alkyne cycloaddition chemistry to study the combinatorial effects of different peptide ligands on cellular processes. We synthesized ECM adhesion peptides (YIGSR, GRGDS), a bone morphogenetic protein 7 (BMP-7) derived peptide (KPSSAPTQLN), and a heparin binding peptide (KRSR), and arrayed them, alone and in combination, onto gold coated coverslips. SAMs were characterized by X-ray photoelectron spectroscopy (XPS) and matrix-assisted laser desorption/ionization (MALDI) mass spectrometry, and arrayed peptide combinations were seen to differentially bind to adipose derived stem cells (ADSCs) and mouse embryonic fibroblasts (MEFs). We further investigated the osteogenesis of ADSCs on SAMs containing combinations of adhesion peptide and BMP-7 peptide in both standard culture and osteogenic differentiation media. We demonstrate enhanced expression of osteogenic markers Runx2 and osteopontin when ADSCs are adherent to BMP-7 derived peptide alone or in combination with ECM adhesion peptides. The platform presented here enables immobilization of multiple peptides in a single step using a commercially available microarray spotter which will prove useful in fabricating biomolecule interfaces for cell biology studies and biochemical assays.
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Affiliation(s)
- Douglas Zhang
- Department of Materials Science and Engineering, University of Illinois, Urbana-Champaign, Illinois 61801, USA.
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16
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Clausmeyer J, Schuhmann W, Plumeré N. Electrochemical patterning as a tool for fabricating biomolecule microarrays. Trends Analyt Chem 2014. [DOI: 10.1016/j.trac.2014.03.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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17
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Pulsipher A, Griffin ME, Stone SE, Brown JM, Hsieh-Wilson LC. Directing neuronal signaling through cell-surface glycan engineering. J Am Chem Soc 2014; 136:6794-7. [PMID: 24746277 PMCID: PMC4120997 DOI: 10.1021/ja5005174] [Citation(s) in RCA: 67] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
![]()
The ability to tailor
plasma membranes with specific glycans may
enable the control of signaling events that are critical for proper
development and function. We report a method to modify cell surfaces
with specific sulfated chondroitin sulfate (CS) glycosaminoglycans
using chemically modified liposomes. Neurons engineered to display
CS-E-enriched polysaccharides exhibited increased activation of neurotrophin-mediated
signaling pathways and enhanced axonal growth. This approach provides
a facile, general route to tailor cell membranes with biologically
active glycans and demonstrates the potential to direct important
cellular events through cell-surface glycan engineering.
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Affiliation(s)
- Abigail Pulsipher
- Division of Chemistry and Chemical Engineering, California Institute of Technology and Howard Hughes Medical Institute , 1200 East California Boulevard, Pasadena, California 91125, United States
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18
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Brinkmann J, Cavatorta E, Sankaran S, Schmidt B, van Weerd J, Jonkheijm P. About supramolecular systems for dynamically probing cells. Chem Soc Rev 2014; 43:4449-69. [PMID: 24681633 DOI: 10.1039/c4cs00034j] [Citation(s) in RCA: 50] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
This article reviews the state of the art in the development of strategies for generating supramolecular systems for dynamic cell studies. Dynamic systems are crucial to further our understanding of cell biology and are consequently at the heart of many medical applications. Increasing interest has therefore been focused recently on rendering systems bioactive and dynamic that can subsequently be employed to engage with cells. Different approaches using supramolecular chemistry are reviewed with particular emphasis on their application in cell studies. We conclude with an outlook on future challenges for dynamic cell research and applications.
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Affiliation(s)
- Jenny Brinkmann
- MESA+ Institute for Nanotechnology and Department of Science and Technology, Laboratory Group of Bioinspired Molecular Engineering, University of Twente, P.O. Box 217, 7500 AE, Enschede, The Netherlands.
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19
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Park S, Westcott NP, Luo W, Dutta D, Yousaf MN. General chemoselective and redox-responsive ligation and release strategy. Bioconjug Chem 2014; 25:543-51. [PMID: 24559434 PMCID: PMC3983135 DOI: 10.1021/bc400565y] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
![]()
We
report a switchable redox click and cleave reaction strategy for conjugating
and releasing a range of molecules on demand. This chemoselective
redox-responsive ligation (CRRL) and release strategy is based on
a redox switchable oxime linkage that is controlled by mild chemical
or electrochemical redox signals and can be performed at physiological
conditions without the use of a catalyst. Both conjugation and release
reactions are kinetically well behaved and quantitative. The CRRL
strategy is synthetically modular and easily monitored and characterized
by routine analytical techniques. We demonstrate how the CRRL strategy
can be used for the dynamic generation of cyclic peptides and the
ligation of two different peptides that are stable but can be selectively
cleaved upon changes in the redox environment. We also demonstrate
a new redox based delivery of cargoes to live cells strategy via the
CRRL methodology by synthesizing a FRET redox-responsive probe that
is selectively activated within a cellular environment. We believe
the ease of the CRRL strategy should find wide use in a range of applications
in biology, tissue engineering, nanoscience, synthetic chemistry,
and material science and will expand the suite of current conjugation
and release strategies.
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Affiliation(s)
- Sungjin Park
- Department of Chemistry, University of North Carolina at Chapel Hill , Chapel Hill, North Carolina 27599, United States
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20
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Lee EJ, Chan EWL, Luo W, Yousaf MN. Ligand slope, density and affinity direct cell polarity and migration on molecular gradient surfaces. RSC Adv 2014. [DOI: 10.1039/c4ra03795b] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A patterned peptide gradient with control of slope and density is created for studies of directed cell polarization and migration.
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Affiliation(s)
- Eun-ju Lee
- Department of Chemistry
- The University of North Carolina at Chapel Hill
- Chapel Hill, USA
| | - Eugene W. L. Chan
- Department of Chemistry
- The University of North Carolina at Chapel Hill
- Chapel Hill, USA
| | - Wei Luo
- Department of Chemistry
- The University of North Carolina at Chapel Hill
- Chapel Hill, USA
- Department of Chemistry and Biology
- Centre for Research in Biomolecular Interaction
| | - Muhammad N. Yousaf
- Department of Chemistry
- The University of North Carolina at Chapel Hill
- Chapel Hill, USA
- Department of Chemistry and Biology
- Centre for Research in Biomolecular Interaction
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21
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Oberhansl S, Castaño AG, Lagunas A, Prats-Alfonso E, Hirtz M, Albericio F, Fuchs H, Samitier J, Martinez E. Mesopattern of immobilised bone morphogenetic protein-2 created by microcontact printing and dip-pen nanolithography influence C2C12 cell fate. RSC Adv 2014. [DOI: 10.1039/c4ra10311d] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Making meso matter: bone morphogenetic protein-2 (BMP-2) mesopattern created by dip-pen nanolithography and microcontact printing were applied to cell differentiation.
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Affiliation(s)
- S. Oberhansl
- Nanobioengineering group
- Institute for Bioengineering of Catalonia (IBEC)
- 08028 Barcelona, Spain
- Centro de Investigación Biomédica en Red en Bioingeniería
- Biomateriales y Nanomedicina
| | - A. G. Castaño
- Biomimetic systems for cell engineering group
- Institute for Bioengineering of Catalonia (IBEC)
- 08028 Barcelona, Spain
- Centro de Investigación Biomédica en Red en Bioingeniería
- Biomateriales y Nanomedicina
| | - A. Lagunas
- Nanobioengineering group
- Institute for Bioengineering of Catalonia (IBEC)
- 08028 Barcelona, Spain
- Centro de Investigación Biomédica en Red en Bioingeniería
- Biomateriales y Nanomedicina
| | - E. Prats-Alfonso
- Institute for Research in Biomedicine (IRB)
- Department of Organic Chemistry
- University of Barcelona
- CIBER-BBN
- 08028 Barcelona, Spain
| | - M. Hirtz
- Institute of Nanotechnology (INT) and Karlsruhe Nano Micro Facility (KNMF)
- Karlsruhe Institute of Technology (KIT)
- Eggenstein-Leopoldshafen, Germany
| | - F. Albericio
- Institute for Research in Biomedicine (IRB)
- Department of Organic Chemistry
- University of Barcelona
- CIBER-BBN
- 08028 Barcelona, Spain
| | - H. Fuchs
- Institute of Nanotechnology (INT) and Karlsruhe Nano Micro Facility (KNMF)
- Karlsruhe Institute of Technology (KIT)
- Eggenstein-Leopoldshafen, Germany
- Westfälische Wilhelms-Universität and Center for Nanotechnology (CeNTech)
- Münster, Germany
| | - J. Samitier
- Nanobioengineering group
- Institute for Bioengineering of Catalonia (IBEC)
- 08028 Barcelona, Spain
- Centro de Investigación Biomédica en Red en Bioingeniería
- Biomateriales y Nanomedicina
| | - E. Martinez
- Biomimetic systems for cell engineering group
- Institute for Bioengineering of Catalonia (IBEC)
- 08028 Barcelona, Spain
- Centro de Investigación Biomédica en Red en Bioingeniería
- Biomateriales y Nanomedicina
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22
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Nakanishi J. Switchable substrates for analyzing and engineering cellular functions. Chem Asian J 2013; 9:406-17. [PMID: 24339448 DOI: 10.1002/asia.201301325] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2013] [Indexed: 11/09/2022]
Abstract
Cellular activity is highly dependent on the extracellular environment, which is composed of surrounding cells and extracellular matrices. This focus review summarizes recent advances in chemically and physically engineered switchable substrates designed to control such cellular microenvironments by application of an external stimulus. Special attention is given to their molecular design, switching strategies, and representative examples for bioanalytical and biomedical applications.
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Affiliation(s)
- Jun Nakanishi
- WPI Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044 (Japan).
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23
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Rasi Ghaemi S, Harding FJ, Delalat B, Gronthos S, Voelcker NH. Exploring the mesenchymal stem cell niche using high throughput screening. Biomaterials 2013; 34:7601-15. [DOI: 10.1016/j.biomaterials.2013.06.022] [Citation(s) in RCA: 46] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/07/2013] [Accepted: 06/12/2013] [Indexed: 12/13/2022]
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24
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Schroll P, Fehl C, Dankesreiter S, König B. Photocatalytic surface patterning of cellulose using diazonium salts and visible light. Org Biomol Chem 2013; 11:6510-4. [PMID: 23963264 DOI: 10.1039/c3ob40990b] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Coumarin-functionalized cellulose sheets were chemically modified using a visible light catalyzed "Photo-Meerwein" arylation. Use of a photomask to pattern the surface resulted in directly visible images.
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Affiliation(s)
- Peter Schroll
- Institut für Organische Chemie, Universität Regensburg, Universitätsstraße 31, D-93053 Regensburg, Germany.
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25
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Yu X, Pham JT, Subramani C, Creran B, Yeh YC, Du K, Patra D, Miranda OR, Crosby AJ, Rotello VM. Direct patterning of engineered ionic gold nanoparticles via nanoimprint lithography. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2012; 24:6330-4. [PMID: 23023775 DOI: 10.1002/adma.201202776] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/09/2012] [Revised: 08/09/2012] [Indexed: 05/16/2023]
Abstract
Gold nanoparticles are engineered for direct imprinting of stable structures. This imprinting strategy provides access to new device architectures, as demonstrated through the fabrication of a prototype photoswitchable device.
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Affiliation(s)
- Xi Yu
- Department of Chemistry, University of Massachusetts Amherst, 01003, USA
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26
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Yang L, Gomez-Casado A, Young JF, Nguyen HD, Cabanas-Danés J, Huskens J, Brunsveld L, Jonkheijm P. Reversible and oriented immobilization of ferrocene-modified proteins. J Am Chem Soc 2012; 134:19199-206. [PMID: 23126430 DOI: 10.1021/ja308450n] [Citation(s) in RCA: 68] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
Adopting supramolecular chemistry for immobilization of proteins is an attractive strategy that entails reversibility and responsiveness to stimuli. The reversible and oriented immobilization and micropatterning of ferrocene-tagged yellow fluorescent proteins (Fc-YFPs) onto β-cyclodextrin (βCD) molecular printboards was characterized using surface plasmon resonance (SPR) spectroscopy and fluorescence microscopy in combination with electrochemistry. The proteins were assembled on the surface through the specific supramolecular host-guest interaction between βCD and ferrocene. Application of a dynamic covalent disulfide lock between two YFP proteins resulted in a switch from monovalent to divalent ferrocene interactions with the βCD surface, yielding a more stable protein immobilization. The SPR titration data for the protein immobilization were fitted to a 1:1 Langmuir-type model, yielding K(LM) = 2.5 × 10(5) M(-1) and K(i,s) = 1.2 × 10(3) M(-1), which compares favorably to the intrinsic binding constant presented in the literature for the monovalent interaction of ferrocene with βCD self-assembled monolayers. In addition, the SPR binding experiments were qualitatively simulated, confirming the binding of Fc-YFP in both divalent and monovalent fashion to the βCD monolayers. The Fc-YFPs could be patterned on βCD surfaces in uniform monolayers, as revealed using fluorescence microscopy and atomic force microscopy measurements. Both fluorescence microscopy imaging and SPR measurements were carried out with the in situ capability to perform cyclic voltammetry and chronoamperometry. These studies emphasize the repetitive desorption and adsorption of the ferrocene-tagged proteins from the βCD surface upon electrochemical oxidation and reduction, respectively.
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Affiliation(s)
- Lanti Yang
- Molecular Nanofabrication Group, Department of Science and Technology, MESA+ Institute for Nanotechnology, University of Twente, P.O. Box 217, 7500 AE Enschede, The Netherlands
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27
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An Q, Brinkmann J, Huskens J, Krabbenborg S, de Boer J, Jonkheijm P. A Supramolecular System for the Electrochemically Controlled Release of Cells. Angew Chem Int Ed Engl 2012; 51:12233-7. [DOI: 10.1002/anie.201205651] [Citation(s) in RCA: 112] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2012] [Indexed: 12/22/2022]
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28
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An Q, Brinkmann J, Huskens J, Krabbenborg S, de Boer J, Jonkheijm P. A Supramolecular System for the Electrochemically Controlled Release of Cells. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201205651] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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29
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Koepsel JT, Murphy WL. Patterned self-assembled monolayers: efficient, chemically defined tools for cell biology. Chembiochem 2012; 13:1717-24. [PMID: 22807236 PMCID: PMC3995495 DOI: 10.1002/cbic.201200226] [Citation(s) in RCA: 41] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2012] [Indexed: 12/26/2022]
Abstract
Self-assembled monolayers (SAMs) of alkanethiolates on gold can be used to carefully probe immobilized biomolecule interactions with cell-surface receptors. However, due to a lack of experimental throughput associated with labor-intensive production, specialized fabrication apparatus, and other practical challenges, alkanethiolate SAMs have not had widespread use by biological researchers. In this Minireview, we investigate a range of techniques that could enhance the throughput of SAM-based approaches by patterning substrates with arrays of different conditions. Here we highlight microfluidic, photochemical, localized removal, and backfilling techniques to locally pattern SAM substrates with biomolecules and also describe how these approaches have been applied in SAM-based screening systems. Furthermore we provide perspectives on several crucial barriers that need to be overcome to enable widespread use of SAM chemistry in biological applications.
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Affiliation(s)
- Justin T. Koepsel
- Department of Biomedical Engineering, University of Wisconsin, 1550 Engineering Drive, Engineering Centers Building, Madison, WI 53706 (USA)
| | - William L. Murphy
- Department of Biomedical Engineering, University of Wisconsin, 1550 Engineering Drive, Engineering Centers Building, Madison, WI 53706 (USA)
- Department of Orthopedics and Rehabilitation, University of Wisconsin, 1111 Highland Avenue, Wisconsin Institutes for Medical Research, Madison, WI 53705 (USA)
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30
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Choi I, Yeo WS. Self-Assembled Monolayers with Dynamicity Stemming from (Bio)Chemical Conversions: From Construction to Application. Chemphyschem 2012; 14:55-69. [DOI: 10.1002/cphc.201200293] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2012] [Indexed: 11/11/2022]
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31
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Kilian KA, Mrksich M. Directing Stem Cell Fate by Controlling the Affinity and Density of Ligand-Receptor Interactions at the Biomaterials Interface. Angew Chem Int Ed Engl 2012. [DOI: 10.1002/ange.201108746] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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32
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Kilian KA, Mrksich M. Directing stem cell fate by controlling the affinity and density of ligand-receptor interactions at the biomaterials interface. Angew Chem Int Ed Engl 2012; 51:4891-5. [PMID: 22505230 DOI: 10.1002/anie.201108746] [Citation(s) in RCA: 123] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2011] [Indexed: 01/24/2023]
Abstract
Sticky situation: the differentiation of mesenchymal stem cells can be influenced by the affinity and density of an immobilized ligand for the integrin receptors. Cells adherent to monolayers that present the high-affinity, cyclic-RGD peptide (left) show increased expression of osteogenic markers, while cells on monolayers presenting the lower-affinity, linear-RGD peptide (right) express early markers of myogenesis at a high density and neurogenesis at a low density of the ligand.
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33
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da Costa DS, Pires RA, Frias AM, Reis RL, Pashkuleva I. Sulfonic groups induce formation of filopodia in mesenchymal stem cells. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm15762d] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
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34
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Luo W, Yousaf MN. Biomolecular modification of carbon nanotubes for studies of cell adhesion and migration. NANOTECHNOLOGY 2011; 22:494019. [PMID: 22101926 DOI: 10.1088/0957-4484/22/49/494019] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We report a strategy for tailoring and patterning carbon nanotubes (CNTs) for biospecific cell studies. We synthesized a new electroactive hydroquinone terminated pyrene molecule to tailor CNTs. These modified CNTs can be oxidized and chemoselectively reacted with oxyamine tethered ligands to generate various ligand tethered CNTs. A cell adhesive Arg-Gly-Asp peptide (RGD) is immobilized to the CNTs and a new microfluidic patterning method is employed to generate multiplex patterned surfaces for biospecific cell adhesion and migration studies. This work demonstrates the integration of a new functionalization strategy to immobilize a variety of ligands to CNTs for a range of potential drug delivery, tissue imaging and cellular behavior studies and a microfluidic patterning strategy for generating complex high-throughput surfaces for biotechnological and cell based assay applications.
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Affiliation(s)
- Wei Luo
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA
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35
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Developing a self-assembled monolayer microarray to study stem cell differentiation. J Colloid Interface Sci 2011; 360:325-30. [DOI: 10.1016/j.jcis.2011.04.098] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2010] [Revised: 04/26/2011] [Accepted: 04/27/2011] [Indexed: 01/17/2023]
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36
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Nakanishi J, Nakayama H, Yamaguchi K, Garcia AJ, Horiike Y. Dynamic culture substrate that captures a specific extracellular matrix protein in response to light. SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS 2011; 12:044608. [PMID: 27877416 PMCID: PMC5090494 DOI: 10.1088/1468-6996/12/4/044608] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2011] [Revised: 07/07/2011] [Accepted: 04/24/2011] [Indexed: 05/23/2023]
Abstract
The development of methods for the off-on switching of immobilization or presentation of cell-adhesive peptides and proteins during cell culture is important because such surfaces are useful for the analysis of the dynamic processes of cell adhesion and migration. This paper describes a chemically functionalized gold substrate that captures a genetically tagged extracellular matrix protein in response to light. The substrate was composed of mixed self-assembled monolayers (SAMs) of three disulfide compounds containing (i) a photocleavable poly(ethylene glycol) (PEG), (ii) nitrilotriacetic acid (NTA) and (iii) hepta(ethylene glycol) (EG7). Although the NTA group has an intrinsic high affinity for oligohistidine tag (His-tag) sequences in its Ni2+-ion complex, the interaction was suppressed by the steric hindrance of coexisting PEG on the substrate surface. Upon photoirradiation of the substrate to release the PEG chain from the surface, this interaction became possible and hence the protein was captured at the irradiated regions, while keeping the non-specific adsorption of non-His-tagged proteins blocked by the EG7 underbrush. In this way, we selectively immobilized a His-tagged fibronectin fragment (FNIII7-10) to the irradiated regions. In contrast, when bovine serum albumin-a major serum protein-was added as a non-His-tagged protein, the surface did not permit its capture, with or without irradiation. In agreement with these results, cells were selectively attached to the irradiated patterns only when a His-tagged FNIII7-10 was added to the medium. These results indicate that the present method is useful for studying the cellular behavior on the specific extracellular matrix protein in cell-culturing environments.
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Affiliation(s)
- Jun Nakanishi
- World Premier International (WPI) Research Center Initiative, International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Japan
| | - Hidekazu Nakayama
- World Premier International (WPI) Research Center Initiative, International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Japan
| | - Kazuo Yamaguchi
- Department of Chemistry, Faculty of Science and Research Institute for Photofunctionalized Materials, Kanagawa University, Japan
| | - Andres J Garcia
- Institute for Bioengineering and Bioscience, Woodruff School of Mechanical Engineering, Georgia Institute of Technology, USA
| | - Yasuhiro Horiike
- World Premier International (WPI) Research Center Initiative, International Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Japan
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37
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Mager MD, LaPointe V, Stevens MM. Exploring and exploiting chemistry at the cell surface. Nat Chem 2011; 3:582-9. [DOI: 10.1038/nchem.1090] [Citation(s) in RCA: 249] [Impact Index Per Article: 19.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
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38
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Abstract
In this report, we develop smart surfaces for the spatial and temporal control of mammalian cell behavior. We integrate a bioactive surface strategy with a photo-electroactive surface strategy to generate dynamic ligand surface gradients for controlling cell adhesion, tissue shape morphing, and cell tissue migration.
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Affiliation(s)
- Wei Luo
- Department of Chemistry, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599, USA
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39
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Site-specific sonoporation of human melanoma cells at the cellular level using high lateral-resolution ultrasonic micro-transducer arrays. Biosens Bioelectron 2011; 27:25-33. [PMID: 21783355 DOI: 10.1016/j.bios.2011.05.026] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2011] [Revised: 05/09/2011] [Accepted: 05/12/2011] [Indexed: 11/23/2022]
Abstract
We developed a new instrumental method by which human melanoma cells (LU1205) are sonoporated via radiation pressures exerted by highly-confined ultrasonic waves produced by high lateral-resolution ultrasonic micro-transducer arrays (UMTAs). The method enables cellular-level site-specific sonoporation within the cell monolayer due to UMTAs and can be applicable in the delivery of drugs and gene products in cellular assays. In this method, cells are seeded on the biochip that employs UMTAs for high spatial resolution and specificity. UMTAs are driven by 30-MHz sinusoidal signals and the resulting radiation pressures induce sonoporation in the targeted cells. The sonoporation degree and the effective lateral resolution of UMTAs are determined by performing fluorescent microscopy and analysis of carboxylic-acid-derivatized CdSe/ZnS quantum dots passively transported into the cells. Models representing the transducer-generated ultrasound radiation pressure, the ultrasound-inflicted cell membrane wound, and the transmembrane transport through the wound are developed to determine the ultrasound-pressure-dependent wound size and enhanced cellular uptake of nanoparticles. Model-based calculations show that the effective wound size and cellular uptake of nanoparticles increase linearly with increasing ultrasound pressure (i.e., at applied radiation pressures of 0.21, 0.29, and 0.40 MPa, the ultrasound-induced initial effective wound radii are 150, 460, and 650 nm, respectively, and the post-sonoporation intracellular quantum-dot concentrations are 7.8, 22.8, and 29.9 nM, respectively) and the threshold pressure required to induce sonoporation in LU1205 cells is ∼0.12 MPa.
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40
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Collier CP, Simpson ML. Micro/nanofabricated environments for synthetic biology. Curr Opin Biotechnol 2011; 22:516-26. [PMID: 21636262 DOI: 10.1016/j.copbio.2011.05.002] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2011] [Accepted: 05/06/2011] [Indexed: 11/17/2022]
Abstract
A better understanding of how confinement, crowding and reduced dimensionality modulate reactivity and reaction dynamics will aid in the rational and systematic discovery of functionality in complex biological systems. Artificial microfabricated and nanofabricated structures have helped elucidate the effects of nanoscale spatial confinement and segregation on biological behavior, particularly when integrated with microfluidics, through precise control in both space and time of diffusible signals and binding interactions. Examples of nanostructured interfaces for synthetic biology include the development of cell-like compartments for encapsulating biochemical reactions, nanostructured environments for fundamental studies of diffusion, molecular transport and biochemical reaction kinetics, and regulation of biomolecular interactions as functions of microfabricated and nanofabricated topological constraints.
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Affiliation(s)
- C Patrick Collier
- Center for Nanophase Materials Sciences, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA.
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41
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Dutta D, Pulsipher A, Luo W, Yousaf MN. Synthetic Chemoselective Rewiring of Cell Surfaces: Generation of Three-Dimensional Tissue Structures. J Am Chem Soc 2011; 133:8704-13. [DOI: 10.1021/ja2022569] [Citation(s) in RCA: 92] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Affiliation(s)
- Debjit Dutta
- Department of Chemistry and Carolina Center for Genome Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Abigail Pulsipher
- Department of Chemistry and Carolina Center for Genome Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Wei Luo
- Department of Chemistry and Carolina Center for Genome Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
| | - Muhammad N. Yousaf
- Department of Chemistry and Carolina Center for Genome Science, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina 27599-3290, United States
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42
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Seo H, Choi I, Lee J, Kim S, Kim DE, Kim SK, Yeo WS. Facile Method for Development of Ligand-Patterned Substrates Induced by a Chemical Reaction. Chemistry 2011; 17:5804-7. [DOI: 10.1002/chem.201100084] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2011] [Indexed: 12/11/2022]
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43
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Wu H, Ge J, Uttamchandani M, Yao SQ. Small molecule microarrays: the first decade and beyond. Chem Commun (Camb) 2011; 47:5664-5670. [DOI: 10.1039/c1cc11464f] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
Abstract
Molecular Bits and Chips: Profiling and discovering the next generation of small molecule ligands.
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Affiliation(s)
- Hao Wu
- Department of Chemistry
- National University of Singapore
- Singapore 117543
| | - Jingyan Ge
- Department of Chemistry
- National University of Singapore
- Singapore 117543
| | - Mahesh Uttamchandani
- Department of Chemistry
- National University of Singapore
- Singapore 117543
- Department of Biological Sciences
- National University of Singapore
| | - Shao Q. Yao
- Department of Chemistry
- National University of Singapore
- Singapore 117543
- Department of Biological Sciences
- National University of Singapore
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Subramani C, Yu X, Agasti SS, Duncan B, Eymur S, Tonga M, Rotello VM. Direct photopatterning of light-activated gold nanoparticles. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c1jm11035g] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
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Subramani C, Bajaj A, Miranda OR, Rotello VM. Biocompatible charged and uncharged surfaces using nanoparticle films. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2010; 22:5420-5423. [PMID: 20925103 DOI: 10.1002/adma.201002851] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
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Byeon JY, Limpoco FT, Bailey RC. Efficient bioconjugation of protein capture agents to biosensor surfaces using aniline-catalyzed hydrazone ligation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:15430-5. [PMID: 20809595 PMCID: PMC2947609 DOI: 10.1021/la1021824] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
Aniline-catalyzed hydrazone ligation between surface-immobilized hydrazines and aldehyde-modified antibodies is shown to be an efficient method for attaching protein capture agents to model oxide-coated biosensor substrates. Silicon photonic microring resonators are used to directly evaluate the efficiency of this surface bioconjugate reaction at various pHs and in the presence or absence of aniline as a nucleophilic catalyst. It is found that aniline significantly increases the net antibody loading for surfaces functionalized over a pH range from 4.5 to 7.4, allowing derivatization of substrates with reduced incubation time and sample consumption. This increase in antibody loading directly results in more sensitive antigen detection when functionalized microrings are employed in a label-free immunoassay. Furthermore, these experiments also reveal an interesting pH-dependent noncovalent binding trend that plays an important role in dictating the amount of antibody attached onto the substrate, highlighting the competing contributions of the bioconjugate reaction rate and the dynamic interactions that control opportunities for a solution-phase biomolecule to react with a substrate-bound reagent.
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Affiliation(s)
- Ji-Yeon Byeon
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 S. Mathews Ave., Urbana, IL 61801
| | - F. T. Limpoco
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 S. Mathews Ave., Urbana, IL 61801
| | - Ryan C. Bailey
- Department of Chemistry, University of Illinois at Urbana-Champaign, 600 S. Mathews Ave., Urbana, IL 61801
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