1
|
Arshi S, Madane K, Shortall K, Hailo G, Alvarez-Malmagro J, Xiao X, Szymanńska K, Belochapkine S, Ranade VV, Magner E. Controlled Delivery of H 2O 2: A Three-Enzyme Cascade Flow Reactor for Peroxidase-Catalyzed Reactions. ACS SUSTAINABLE CHEMISTRY & ENGINEERING 2024; 12:10555-10566. [PMID: 39027729 PMCID: PMC11253098 DOI: 10.1021/acssuschemeng.4c03220] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/17/2024] [Revised: 06/05/2024] [Accepted: 06/07/2024] [Indexed: 07/20/2024]
Abstract
Peroxidases are promising catalysts for oxidation reactions, yet their practical utility has been hindered by the fact that they require hydrogen peroxide (H2O2), which at high concentrations can cause deactivation of enzymes. Practical processes involving the use of peroxidases require the frequent addition of low concentrations of H2O2. In situ generation of H2O2 can be achieved using oxidase-type enzymes. In this study, a three-enzyme cascade system comprised of a H2O2 generator (glucose oxidase (GOx)), H2O2-dependent enzymes (chloroperoxidase (CPO) or horseradish peroxidase (HRP)), and a H2O2 scavenger (catalase (CAT)) was deployed in a flow reactor. Immobilization of the enzymes on a graphite rod was achieved through electrochemically driven physical adsorption, followed by cross-linking with glutaraldehyde. Modeling studies indicated that the flow in the reactor was laminar (Reynolds number, R e < 2000) and was nearly fully developed at the midplane of the annular reactor. Immobilized CAT and GOx displayed good stability, retaining 79% and 84% of their initial activity, respectively, after three cycles of operation. Conversely, immobilized CPO exhibited a considerable reduction in activity after one use, retaining only 30% of its initial activity. The GOx-CAT-GRE system enabled controlled delivery of H2O2 in a more stable manner with a 4-fold enhancement in the oxidation of indole compared to the direct addition of H2O2. Using CPO in solution coupled with GOx-CAT-GRE yields of 90% for the oxidation of indole to 2-oxyindole and of 93% and 91% for the chlorination of thymol and carvacrol, respectively.
Collapse
Affiliation(s)
- Simin Arshi
- Department
of Chemical Sciences, Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland
| | - Ketan Madane
- Department
of Chemical Sciences, Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland
| | - Kim Shortall
- Department
of Chemical Sciences, Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland
| | - Goran Hailo
- Department
of Chemical Sciences, Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland
| | - Julia Alvarez-Malmagro
- Department
of Chemical Sciences, Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland
| | - Xinxin Xiao
- Department
of Chemistry, Technical University of Denmark, Kongens Lyngby 2800, Denmark
| | - Katarzyna Szymanńska
- Department
of Chemical Engineering and Process Design, Silesian University of Technology, Gliwice 44-100, Poland
| | - Serguei Belochapkine
- Department
of Chemical Sciences, Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland
| | - Vivek V. Ranade
- Department
of Chemical Sciences, Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland
| | - Edmond Magner
- Department
of Chemical Sciences, Bernal Institute, University of Limerick, Limerick V94 T9PX, Ireland
| |
Collapse
|
2
|
Muronetz VI, Pozdyshev DV, Semenyuk PI. Polyelectrolytes for Enzyme Immobilization and the Regulation of Their Properties. Polymers (Basel) 2022; 14:polym14194204. [PMID: 36236151 PMCID: PMC9571273 DOI: 10.3390/polym14194204] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 09/30/2022] [Accepted: 10/05/2022] [Indexed: 11/16/2022] Open
Abstract
In this review, we considered aspects related to the application of polyelectrolytes, primarily synthetic polyanions and polycations, to immobilize enzymes and regulate their properties. We mainly focused on the description of works in which polyelectrolytes were used to create complex and unusual systems (self-regulated enzyme-polyelectrolyte complexes, artificial chaperones, polyelectrolyte brushes, layer-by-layer immobilization and others). These works represent the field of "smart polymers", whilst the trivial use of charged polymers as carriers for adsorption or covalent immobilization of proteins is beyond the scope of this short review. In addition, we have included a section on the molecular modeling of interactions between proteins and polyelectrolytes, as modeling the binding of proteins with a strictly defined, and already known, spatial structure, to disordered polymeric molecules has its own unique characteristics.
Collapse
Affiliation(s)
- Vladimir I. Muronetz
- Belozersky Research Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskie Gory 1, Bld 40, 119992 Moscow, Russia
- Butlerov Chemical Institute, Kazan Federal University, Kremlevskaya 18, 420008 Kazan, Russia
- Correspondence: ; Tel.: +7-(495)939-14-56
| | - Denis V. Pozdyshev
- Belozersky Research Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskie Gory 1, Bld 40, 119992 Moscow, Russia
| | - Pavel I. Semenyuk
- Belozersky Research Institute of Physico-Chemical Biology, Lomonosov Moscow State University, Leninskie Gory 1, Bld 40, 119992 Moscow, Russia
| |
Collapse
|
3
|
Wang J, Zhang H, Yin D, Xu X, Tan T, Lv Y. Boosted activity by engineering the enzyme microenvironment in cascade reaction: A molecular understanding. Synth Syst Biotechnol 2021; 6:163-172. [PMID: 34278014 PMCID: PMC8271104 DOI: 10.1016/j.synbio.2021.06.004] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2021] [Revised: 06/06/2021] [Accepted: 06/24/2021] [Indexed: 11/19/2022] Open
Abstract
Engineering of enzyme microenvironment can surprisingly boost the apparent activity. However, the underlying regulation mechanism is not well-studied at a molecular level so far. Here, we present a modulation of two model enzymes of cytochrome c (Cty C) and d-amino acid oxidase (DAAO) with opposite pH-activity profiles using ionic polymers. The operational pH of poly (acrylic acid) modified Cyt C and polyallylamine modified DAAO was extended to 3–7 and 2–10 where the enzyme activity was larger than that at their optimum pH of 4.5 and 8.5 by 106% and 28%, respectively. The cascade reaction catalyzed by two modified enzymes reveals a 1.37-fold enhancement in catalytic efficiency compared with their native counterparts. The enzyme activity boosting is understood by performing the UV–vis/CD spectroscopy and molecular dynamics simulations in the atomistic level. The increased activity is ascribed to the favorable microenvironment in support of preserving enzyme native structures nearby cofactor under external perturbations.
Collapse
Affiliation(s)
- Jing Wang
- Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Haiyang Zhang
- Department of Biological Science and Engineering, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, 100083, China
| | - Deping Yin
- Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Xiao Xu
- School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing, 210094, China
| | - Tianwei Tan
- Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China
| | - Yongqin Lv
- Beijing Key Laboratory of Bioprocess, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing, 100029, China
- Corresponding author.
| |
Collapse
|
4
|
Jhang WL, Li CJ, Wang AS, Liu CW, Hsu SW. Tunable Optical Property of Plasmonic-Polymer Nanocomposites Composed of Multilayer Nanocrystal Arrays Stacked in a Homogeneous Polymer Matrix. ACS APPLIED MATERIALS & INTERFACES 2020; 12:51873-51884. [PMID: 33151067 DOI: 10.1021/acsami.0c17170] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Layer-by-layer (LbL) synthetic technique has been used to deposit multilayers composed of a wide range of materials including polymers, colloidal particles, and biomolecules. A more complex organization of nanocomponents-within layers (intralayer) and across layers (interlayer)-beyond simple deposition is required for manufacturing next-generation materials and devices. Recently, LbL was used to fabricate multilayer stacked polymer-nanocrystal nanocomposites composed of a stacking sequence of two immiscible polymer thin films. However, the requirement of two immiscible polymers limits its widespread use for the fabrication of various nanocomposites. Here, we presented a new and simplified synthetic method for the fabrication of multilayer stacked nanocomposites composed of multilayer plasmonic nanocrystal arrays stacked in a homogeneous polymer matrix via iterative sequential LbL deposition of polymer thin films and nanocrystal arrays. This novel fabrication technique requires strong attractive interaction between the "ligand shell" on the nanocrystal surface and the polymer matrix [Flory-Huggins interaction parameter of the ligand shell-polymer matrix (χ) < 0], which can dramatically enhance the stability of nanocomposites during the LbL deposition. The optical properties of plasmonic nanocomposites can be manipulated by the adjustment of the intrinsic property of the nanocrystal and/or coupling effect between adjacent nanocrystals from the same layer (intralayer) and/or the neighboring layer (interlayer). Taking advantage of this novel LbL fabrication technique, the properties of multilayer plasmonic nanocrystal arrays stacked in a homogeneous matrix can be manipulated via tuning the interlayer or intralayer coupling between nanocrystals, which can be achieved by sophisticated control of the packing density of two-dimensional nanocrystal arrays in each individual layer or the thickness of the polymer thin film between two adjacent nanocrystal arrays, respectively. These results provide a facile and effective way of designing a more complex multilayer nanostructure with controllable properties in a homogeneous polymer matrix.
Collapse
Affiliation(s)
- Wei-Liang Jhang
- Department of Chemical Engineering, National Cheng Kung University, No. 1 University Road, East Dist., Tainan City 70101, Taiwan, R.O.C
| | - Chia-Ju Li
- Department of Chemical Engineering, National Cheng Kung University, No. 1 University Road, East Dist., Tainan City 70101, Taiwan, R.O.C
| | - Ai-Shi Wang
- Department of Chemical Engineering, National Cheng Kung University, No. 1 University Road, East Dist., Tainan City 70101, Taiwan, R.O.C
| | - Chung-Wei Liu
- Department of Chemical Engineering, National Cheng Kung University, No. 1 University Road, East Dist., Tainan City 70101, Taiwan, R.O.C
| | - Su-Wen Hsu
- Department of Chemical Engineering, National Cheng Kung University, No. 1 University Road, East Dist., Tainan City 70101, Taiwan, R.O.C
| |
Collapse
|
5
|
Kawagoe Y, Surblys D, Matsubara H, Kikugawa G, Ohara T. Cross-Plane and In-Plane Heat Conductions in Layer-by-Layer Membrane: Molecular Dynamics Study. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2020; 36:6482-6493. [PMID: 32447958 DOI: 10.1021/acs.langmuir.0c00845] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
A material with anisotropic heat conduction characteristics, which is determined by molecular scale structure, provides a way of controlling heat flow in nanoscale spaces. As such, here, we consider layer-by-layer (LbL) membranes, which are an electrostatic assembly of polyelectrolyte multilayers and are expected to have different heat conduction characteristics between cross-plane and in-plane directions. We constructed models of a poly(acrylic acid)/polyethylenimine (PAA/PEI) LbL membrane sandwiched by charged solid walls and investigated their anisotropic heat conduction using molecular dynamics simulations. In the cross-plane direction, the thermal boundary resistance between the solid wall and the LbL membrane and that between the constituent PAA and PEI layers decrease with increasing degree of ionization (solid surface charge density and the number of electric charges per PAA/PEI molecule). When the degree of ionization is low, the cross-plane thermal conductivity of a constituent layer is higher than that of the bulk state. As the degree of ionization increases, however, the cross-plane thermal conductivity of PAA, a linear polymer, decreases because of the increase in the number of in-plane oriented polymer chains. In the in-plane direction, we investigated the heat conduction of each layer and found the enhancement of effective in-plane thermal conductivity again due to the in-plane oriented chain alignment. The heat conduction in the LbL membrane is three-dimensionally enhanced compared to those in the bulk states of the constituent polymers because of the electrostatic interactions in the cross-plane direction and the molecular alignment in the in-plane direction.
Collapse
Affiliation(s)
- Yoshiaki Kawagoe
- Department of Aerospace Engineering, Tohoku University, 6-6-01, Aoba, Aramaki, Aoba-ku, Sendai 980-8579, Japan
| | - Donatas Surblys
- Institute of Fluid Science, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
| | - Hiroki Matsubara
- Institute of Fluid Science, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
| | - Gota Kikugawa
- Institute of Fluid Science, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
| | - Taku Ohara
- Institute of Fluid Science, Tohoku University, 2-1-1 Katahira, Aoba-ku, Sendai 980-8577, Japan
| |
Collapse
|
6
|
Ghiorghita CA, Bucatariu F, Dragan ES. Influence of cross-linking in loading/release applications of polyelectrolyte multilayer assemblies. A review. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2019; 105:110050. [DOI: 10.1016/j.msec.2019.110050] [Citation(s) in RCA: 23] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2018] [Revised: 07/31/2019] [Accepted: 08/02/2019] [Indexed: 10/26/2022]
|
7
|
Xu Q, Tian R, Lu C, Li H. Monodispersed Ag Nanoparticle in Layered Double Hydroxides as Matrix for Laser Desorption/Ionization Mass Spectrometry. ACS APPLIED MATERIALS & INTERFACES 2018; 10:44751-44759. [PMID: 30512921 DOI: 10.1021/acsami.8b17051] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Matrix-assisted laser desorption/ionization mass spectrometry (MALDI MS) in the low-molecular-weight (LMW) range is a long-standing challenge because of the fragments from the matrix and the heterogeneity of the matrix-analyte crystals. In this work, a homogeneous film with the monodispersed Ag nanoparticles (Ag NPs) in the confined interlayer of layered double hydroxides (LDHs) has been achieved. The Ag NPs with advantageous optical absorption could realize the energy capture and transfer process, and LDHs with abundant hydroxyl groups are beneficial for the deprotonated reaction. Therefore, the as-prepared film exhibited interference-free deprotonated signals in negative-ion mode with high ionization efficiency. The uniform matrix-analyte spots were constructed through the homogeneous assembly process, contributing to the high reproducibility for both the liquid and gaseous samples. Good linearities were successfully realized in the range from 0.1 μM to 1.0 mM for glucose with the relative standard deviation (RSD) of 3.8%, and 0.2-2.0 mM with the average RSD of 4.5% for psoralen samples, respectively. It is believed that the proposed matrix could exhibit competitive advantages for MALDI detection in the LMW region, which may provide new insight into development for MALDI mass detection.
Collapse
Affiliation(s)
- Qi Xu
- State Key Laboratory of Chemical Resource Engineering , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Rui Tian
- State Key Laboratory of Chemical Resource Engineering , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Chao Lu
- State Key Laboratory of Chemical Resource Engineering , Beijing University of Chemical Technology , Beijing 100029 , China
| | - Haifang Li
- Department of Chemistry, Beijing Key Laboratory of Microanalytical Methods and Instrumentation , Tsinghua University , Beijing 100084 , China
| |
Collapse
|
8
|
Li Y, Feng X, Wang A, Yang Y, Fei J, Sun B, Jia Y, Li J. Supramolecularly Assembled Nanocomposites as Biomimetic Chloroplasts for Enhancement of Photophosphorylation. Angew Chem Int Ed Engl 2018; 58:796-800. [PMID: 30474178 DOI: 10.1002/anie.201812582] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2018] [Indexed: 11/07/2022]
Abstract
Prototypes of natural biosystems provide opportunities for artificial biomimetic systems to break the limits of natural reactions and achieve output control. However, mimicking unique natural structures and ingenious functions remains a challenge. Now, multiple biochemical reactions were integrated into artificially designed compartments via molecular assembly. First, multicompartmental silica nanoparticles with hierarchical structures that mimic the chloroplasts were obtained by a templated synthesis. Then, photoacid generators and ATPase-liposomes were assembled inside and outside of silica compartments, respectively. Upon light illumination, protons produced by a photoacid generator in the confined space can drive the liposome-embedded enzyme ATPase towards ATP synthesis, which mimics the photophosphorylation process in vitro. The method enables fabrication of bioinspired nanoreactors for photobiocatalysis and provides insight for understanding sophisticated biochemical reactions.
Collapse
Affiliation(s)
- Yue Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Lab of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Xiyun Feng
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Lab of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,Yunnan Normal University, Faculty of Chemistry and Chemical Engineering, Kunming, 650050, China
| | - Anhe Wang
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Lab of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,State Key Laboratory of Biochemical Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing, 100190, China
| | - Yang Yang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing, 100190, China
| | - Jinbo Fei
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Lab of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Bingbing Sun
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Lab of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,University of Chinese Academic of Sciences, Beijing, 100049, China
| | - Yi Jia
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Lab of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China
| | - Junbai Li
- Beijing National Laboratory for Molecular Sciences (BNLMS), CAS Key Lab of Colloid, Interface and Chemical Thermodynamics, Institute of Chemistry, Chinese Academy of Sciences, Beijing, 100190, China.,University of Chinese Academic of Sciences, Beijing, 100049, China
| |
Collapse
|
9
|
Li Y, Feng X, Wang A, Yang Y, Fei J, Sun B, Jia Y, Li J. Supramolecularly Assembled Nanocomposites as Biomimetic Chloroplasts for Enhancement of Photophosphorylation. Angew Chem Int Ed Engl 2018. [DOI: 10.1002/ange.201812582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Yue Li
- Beijing National Laboratory for Molecular Sciences (BNLMS)CAS Key Lab of Colloid, Interface and Chemical ThermodynamicsInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and NanosafetyNational Center for Nanoscience and Technology Beijing 100190 China
| | - Xiyun Feng
- Beijing National Laboratory for Molecular Sciences (BNLMS)CAS Key Lab of Colloid, Interface and Chemical ThermodynamicsInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
- Yunnan Normal UniversityFaculty of Chemistry and Chemical Engineering Kunming 650050 China
| | - Anhe Wang
- Beijing National Laboratory for Molecular Sciences (BNLMS)CAS Key Lab of Colloid, Interface and Chemical ThermodynamicsInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
- State Key Laboratory of Biochemical EngineeringInstitute of Process EngineeringChinese Academy of Sciences Beijing 100190 China
| | - Yang Yang
- CAS Key Laboratory for Biomedical Effects of Nanomaterials and NanosafetyNational Center for Nanoscience and Technology Beijing 100190 China
| | - Jinbo Fei
- Beijing National Laboratory for Molecular Sciences (BNLMS)CAS Key Lab of Colloid, Interface and Chemical ThermodynamicsInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
| | - Bingbing Sun
- Beijing National Laboratory for Molecular Sciences (BNLMS)CAS Key Lab of Colloid, Interface and Chemical ThermodynamicsInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
- University of Chinese Academic of Sciences Beijing 100049 China
| | - Yi Jia
- Beijing National Laboratory for Molecular Sciences (BNLMS)CAS Key Lab of Colloid, Interface and Chemical ThermodynamicsInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
| | - Junbai Li
- Beijing National Laboratory for Molecular Sciences (BNLMS)CAS Key Lab of Colloid, Interface and Chemical ThermodynamicsInstitute of ChemistryChinese Academy of Sciences Beijing 100190 China
- University of Chinese Academic of Sciences Beijing 100049 China
| |
Collapse
|
10
|
Quantin P, Colaço E, El Kirat K, Egles C, Ficheux H, Landoulsi J. Layer-by-Layer Assembly of Nanosized Membrane Fractions for the Assessment of Cytochrome P450 Xenobiotic Metabolism. ACS OMEGA 2018; 3:12535-12544. [PMID: 31457987 PMCID: PMC6644547 DOI: 10.1021/acsomega.8b01738] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/21/2018] [Accepted: 09/19/2018] [Indexed: 06/01/2023]
Abstract
Herein, we report the use of sequential layer-by-layer (LbL) assembly to design nanostructured films made of recombinant bacterial membrane fractions (MF), which overexpress cytochrome P450 (CYP) and cytochrome P450 reductase. The ability to incorporate MF in LbL multilayered films is demonstrated by an in situ quartz crystal microbalance with dissipation monitoring using poly-l-lysine or poly-l-ornithine as a polycation. Results show that MF preserve a remarkable CYP1A2 catalytic property in the adsorbed phase. Moreover, atomic force microscopy images reveal that MF mostly adopt a flattened conformation in the adsorbed phase with an extensive tendency to aggregate within the multilayered films, which is more pronounced when increasing the number of bilayers. Interestingly, this behavior seems to enhance the ability of embedded MF to remain active after repeated uses. The proposed strategy constitutes a practical alternative for the immobilization of active CYP enzymes. Besides their fundamental interest, MF-based multilayers are useful nano-objects for the creation of new biomimetic reactors for the assessment of xenobiotic metabolism.
Collapse
Affiliation(s)
- Paul Quantin
- Département
de Toxicologie, THOR Personal Care, 147 Rue Irene Joliot Curie, 60610 La Croix-Saint-Ouen, France
- Université
de Technologie de Compiègne, Laboratoire de Biomécanique & Bioingénierie,
CNRS, UMR 7338, Rue Personne
de Roberval, 60200 Compiègne, France
| | - Elodie Colaço
- Université
de Technologie de Compiègne, Laboratoire de Biomécanique & Bioingénierie,
CNRS, UMR 7338, Rue Personne
de Roberval, 60200 Compiègne, France
| | - Karim El Kirat
- Université
de Technologie de Compiègne, Laboratoire de Biomécanique & Bioingénierie,
CNRS, UMR 7338, Rue Personne
de Roberval, 60200 Compiègne, France
| | - Christophe Egles
- Université
de Technologie de Compiègne, Laboratoire de Biomécanique & Bioingénierie,
CNRS, UMR 7338, Rue Personne
de Roberval, 60200 Compiègne, France
| | - Hervé Ficheux
- Département
de Toxicologie, THOR Personal Care, 147 Rue Irene Joliot Curie, 60610 La Croix-Saint-Ouen, France
| | - Jessem Landoulsi
- Université
de Technologie de Compiègne, Laboratoire de Biomécanique & Bioingénierie,
CNRS, UMR 7338, Rue Personne
de Roberval, 60200 Compiègne, France
- Sorbonne
Université, CNRS - UMR 7197, Laboratoire de Réactivité
de Surface, 4 Place Jussieu, F-75005 Paris, France
| |
Collapse
|
11
|
Kwon CH, Ko Y, Shin D, Kwon M, Park J, Bae WK, Lee SW, Cho J. High-power hybrid biofuel cells using layer-by-layer assembled glucose oxidase-coated metallic cotton fibers. Nat Commun 2018; 9:4479. [PMID: 30367069 PMCID: PMC6203850 DOI: 10.1038/s41467-018-06994-5] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2018] [Accepted: 10/09/2018] [Indexed: 11/09/2022] Open
Abstract
Electrical communication between an enzyme and an electrode is one of the most important factors in determining the performance of biofuel cells. Here, we introduce a glucose oxidase-coated metallic cotton fiber-based hybrid biofuel cell with efficient electrical communication between the anodic enzyme and the conductive support. Gold nanoparticles are layer-by-layer assembled with small organic linkers onto cotton fibers to form metallic cotton fibers with extremely high conductivity (>2.1×104 S cm-1), and are used as an enzyme-free cathode as well as a conductive support for the enzymatic anode. For preparation of the anode, the glucose oxidase is sequentially layer-by-layer-assembled with the same linkers onto the metallic cotton fibers. The resulting biofuel cells exhibit a remarkable power density of 3.7 mW cm-2, significantly outperforming conventional biofuel cells. Our strategy to promote charge transfer through electrodes can provide an important tool to improve the performance of biofuel cells.
Collapse
Affiliation(s)
- Cheong Hoon Kwon
- Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Yongmin Ko
- Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
- The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Dongyeeb Shin
- Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Minseong Kwon
- Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea
| | - Jinho Park
- The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Wan Ki Bae
- SKKU Advanced Institute of Nano Technology (SAINT), Sungkyunkwan University, Seobu-ro, Jangan-gu, Suwon-si, Gyeong gi-do, 16419, Republic of Korea
| | - Seung Woo Lee
- The George W. Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
| | - Jinhan Cho
- Department of Chemical and Biological Engineering, Korea University, 145 Anam-ro, Seongbuk-gu, Seoul, 02841, Republic of Korea.
| |
Collapse
|
12
|
Lee SW, Kang TH, Lee SK, Lee KY, Yi H. Hydrodynamic Layer-by-Layer Assembly of Transferable Enzymatic Conductive Nanonetworks for Enzyme-Sticker-Based Contact Printing of Electrochemical Biosensors. ACS APPLIED MATERIALS & INTERFACES 2018; 10:36267-36274. [PMID: 30259729 DOI: 10.1021/acsami.8b13070] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Realizing high-performance electrochemical biosensors in a simple contact-printing-based approach significantly increases the applicability of integrated flexible biosensors. Herein, an enzyme-sticker-based approach that enables flexible and multielectrochemical sensors via simple contact-transfer printing is reported. The enzyme sticker consists of an enzymatic conductive network film and a polymeric support. The enzyme-incorporated nanostructured conductive network showing an efficient electrical coupling was assembled via the hydrodynamic layer-by-layer assembly of redox enzymes, polyelectrolytes, single-walled carbon nanotubes, and a biological glue material, M13 phage. The enzymatic conductive network on a polymeric membrane support was facilely wet contact-transfer printed onto integrated electrode systems by exploiting varying degrees of hydrophilicity displayed by the enzymatic electronic film, polymeric support, and receiving electrodes of the sensor system. The glucose sensors fabricated using the enzyme sticker detected glucose at a concentration of as low as 35 μM and showed high selectivity and stability. Furthermore, a flexible dual-sensor array capable of detecting both glucose and lactate was demonstrated using the versatile enzyme sticker concept. This work presents a new route toward assembling and integrating hybrid nanomaterials with efficient electrochemical coupling for high-performance biosensors and health-monitoring devices as well as for emerging bioelectronics and electrochemical devices.
Collapse
Affiliation(s)
- Seung-Woo Lee
- Department of Fine Chemistry , Seoul National University of Science and Technology , Seoul 01811 , Republic of Korea
- Post-Silicon Semiconductor Institute , Korea Institute of Science and Technology , Seoul 02792 , Republic of Korea
| | - Tae-Hyung Kang
- Post-Silicon Semiconductor Institute , Korea Institute of Science and Technology , Seoul 02792 , Republic of Korea
| | - Sung Ku Lee
- Department of Fine Chemistry , Seoul National University of Science and Technology , Seoul 01811 , Republic of Korea
| | - Ki-Young Lee
- Post-Silicon Semiconductor Institute , Korea Institute of Science and Technology , Seoul 02792 , Republic of Korea
| | - Hyunjung Yi
- Post-Silicon Semiconductor Institute , Korea Institute of Science and Technology , Seoul 02792 , Republic of Korea
| |
Collapse
|
13
|
Vasile C. Polymeric Nanocomposites and Nanocoatings for Food Packaging: A Review. MATERIALS (BASEL, SWITZERLAND) 2018; 11:E1834. [PMID: 30261658 PMCID: PMC6213312 DOI: 10.3390/ma11101834] [Citation(s) in RCA: 121] [Impact Index Per Article: 20.2] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/12/2018] [Revised: 09/10/2018] [Accepted: 09/22/2018] [Indexed: 01/20/2023]
Abstract
Special properties of the polymeric nanomaterials (nanoscale size, large surface area to mass ratio and high reactivity individualize them in food packaging materials. They can be processed in precisely engineered materials with multifunctional and bioactive activity. This review offers a general view on polymeric nanocomposites and nanocoatings including classification, preparation methods, properties and short methodology of characterization, applications, selected types of them used in food packaging field and their antimicrobial, antioxidant, biological, biocatalyst and so forth, functions.
Collapse
Affiliation(s)
- Cornelia Vasile
- Physical Chemistry of Polymers Department, Petru Poni Institute of Macromolecular Chemistry (PPIMC), Romanian Academy, 41A Gr. Ghica Alley, RO 700487 Iasi, Romania.
| |
Collapse
|
14
|
Popov AL, Popova N, Gould DJ, Shcherbakov AB, Sukhorukov GB, Ivanov VK. Ceria Nanoparticles-Decorated Microcapsules as a Smart Drug Delivery/Protective System: Protection of Encapsulated P. pyralis Luciferase. ACS APPLIED MATERIALS & INTERFACES 2018; 10:14367-14377. [PMID: 29633830 DOI: 10.1021/acsami.7b19658] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
The design of novel, effective drug delivery systems is one of the most promising ways to improve the treatment of socially important diseases. This article reports on an innovative approach to the production of composite microcontainers (microcapsules) bearing advanced protective functions. Cerium oxide (CeO2) nanoparticles were incorporated into layer-by-layer polyelectrolyte microcapsules as a protective shell for an encapsulated enzyme (luciferase of Photinus pyralis), preventing its oxidation by hydrogen peroxide, the most abundant type of reactive oxygen species (ROS). The protective effect depends on CeO2 loading in the shell: at a low concentration, CeO2 nanoparticles only scavenge ROS, whereas a higher content leads to a decrease in access for both ROS and the substrate to the enzyme in the core. By varying the nanoparticle concentration in the microcapsule, it is possible to control the level of core shielding, from ROS filtering to complete blocking. A comprehensive analysis of microcapsules by transmission electron microscopy, scanning electron microscopy, atomic force microscopy, confocal laser scanning microscopy, and energy-dispersive X-ray spectroscopy techniques was carried out. Composite microcapsules decorated with CeO2 nanoparticles and encapsulated luciferase were shown to be easily taken up by rat B-50 neuronal cells; they are nontoxic and are able to protect cells from the oxidative stress induced by hydrogen peroxide. The approach demonstrated that the active protection of microencapsulated substances by CeO2 nanoparticles can be used in the development of new drug delivery and diagnostic systems.
Collapse
Affiliation(s)
- Anton L Popov
- Institute of Theoretical and Experimental Biophysics , Russian Academy of Sciences , Pushchino, Moscow region 142290 , Russia
| | - Nelli Popova
- Institute of Theoretical and Experimental Biophysics , Russian Academy of Sciences , Pushchino, Moscow region 142290 , Russia
| | - David J Gould
- William Harvey Research Institute , Queen Mary University of London , London EC1M 6BQ , U.K
| | - Alexander B Shcherbakov
- Zabolotny Institute of Microbiology and Virology , National Academy of Sciences of Ukraine , Kyiv D0368 , Ukraine
| | - Gleb B Sukhorukov
- Institute of Theoretical and Experimental Biophysics , Russian Academy of Sciences , Pushchino, Moscow region 142290 , Russia
- School of Engineering & Materials Science , Queen Mary University of London , London E1 4NS , U.K
| | - Vladimir K Ivanov
- Kurnakov Institute of General and Inorganic Chemistry , Russian Academy of Sciences , Moscow 119991 , Russia
- National Research Tomsk State University , Tomsk 634050 , Russia
| |
Collapse
|
15
|
Abstract
Active food packaging involves the packaging of foods with materials that provide an enhanced functionality, such as antimicrobial, antioxidant or biocatalytic functions. This can be achieved through the incorporation of active compounds into the matrix of the commonly used packaging materials, or by the application of coatings with the corresponding functionality through surface modification. The latter option offers the advantage of preserving the packaging materials’ bulk properties nearly intact. Herein, different coating technologies like embedding for controlled release, immobilization, layer-by-layer deposition, and photografting are explained and their potential application for active food packaging is explored and discussed.
Collapse
|
16
|
Ariga K, Ji Q, Mori T, Naito M, Yamauchi Y, Abe H, Hill JP. Enzyme nanoarchitectonics: organization and device application. Chem Soc Rev 2014; 42:6322-45. [PMID: 23348617 DOI: 10.1039/c2cs35475f] [Citation(s) in RCA: 272] [Impact Index Per Article: 27.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
Fabrication of ultrasmall functional machines and their integration within ultrasmall areas or volumes can be useful for creation of novel technologies. The ultimate goal of the development of ultrasmall machines and device systems is to construct functional structures where independent molecules operate as independent device components. To realize exotic functions, use of enzymes in device structures is an attractive solution because enzymes can be regarded as efficient machines possessing high reaction efficiencies and specificities and can operate even under ambient conditions. In this review, recent developments in enzyme immobilization for advanced functions including device applications are summarized from the viewpoint of micro/nano-level structural control, or nanoarchitectonics. Examples are roughly classified as organic soft matter, inorganic soft materials or integrated/organized media. Soft matter such as polymers and their hybrids provide a medium appropriate for entrapment and encapsulation of enzymes. In addition, self-immobilization based on self-assembly and array formation results in enzyme nanoarchitectures with soft functions. For the confinement of enzymes in nanospaces, hard inorganic mesoporous materials containing well-defined channels play an important role. Enzymes that are confined exhibit improved stability and controllable arrangement, which are useful for formation of functional relays and for their integration into artificial devices. Layer-by-layer assemblies as well as organized lipid assemblies such as Langmuir-Blodgett films are some of the best media for architecting controllable enzyme arrangements. The ultrathin forms of these films facilitate their connection with external devices such as electrodes and transistors. Artificial enzymes and enzyme-mimicking catalysts are finally briefly described as examples of enzyme functions involving non-biological materials. These systems may compensate for the drawbacks of natural enzymes, such as their instabilities under harsh conditions. We believe that enzymes and their mimics will be freely coupled, organized and integrated upon demand in near future technologies.
Collapse
Affiliation(s)
- Katsuhiko Ariga
- World Premier International (WPI) Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba 305-0044, Japan.
| | | | | | | | | | | | | |
Collapse
|
17
|
Adamczyk Z, Nattich-Rak M, Sadowska M, Michna A, Szczepaniak K. Mechanisms of nanoparticle and bioparticle deposition – Kinetic aspects. Colloids Surf A Physicochem Eng Asp 2013. [DOI: 10.1016/j.colsurfa.2012.12.060] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
|
18
|
Pavlov AM, Sukhorukov GB, Gould DJ. Location of molecules in layer-by-layer assembled microcapsules influences activity, cell delivery and susceptibility to enzyme degradation. J Control Release 2013; 172:22-29. [DOI: 10.1016/j.jconrel.2013.08.002] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2013] [Revised: 07/24/2013] [Accepted: 08/01/2013] [Indexed: 11/08/2022]
|
19
|
Bio-inspired encapsulation and functionalization of living cells with artificial shells. Colloids Surf B Biointerfaces 2013; 113:483-500. [PMID: 24120320 DOI: 10.1016/j.colsurfb.2013.09.024] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2013] [Revised: 09/11/2013] [Accepted: 09/13/2013] [Indexed: 12/25/2022]
Abstract
In nature, most single cells do not have structured shells to provide extensive protection apart from diatoms and radiolarians. Fabrication of biomimetic structures based on living cells encapsulated with artificial shells has a great impact on the area of cell-based sensors and devices as well as fundamental studies in cell biology. The past decade has witnessed a rapid increase of research concerning the new fabrication strategies, functionalization and applications of this kind of encapsulated cells. In this review, the latest fabrication strategies on how to encapsulate living cells with functional shells based on the diversity of artificial shells are discussed: hydrogel matrix shells, sol-gel shells, polymeric shells, and induced mineral shells. Classical different types of artificial shells are introduced and their advantages and disadvantages are compared and explained. The biomedical applications of encapsulated cells with particular emphasis on cell implant protection, cell separation, biosensors, cell therapy and tissue engineering are also described and a recap of this review and the future perspectives on these active areas is given finally.
Collapse
|
20
|
Ma Y, Dong J, Bhattacharjee S, Wijeratne S, Bruening ML, Baker GL. Increased protein sorption in poly(acrylic acid)-containing films through incorporation of comb-like polymers and film adsorption at low pH and high ionic strength. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:2946-54. [PMID: 23351043 PMCID: PMC3727236 DOI: 10.1021/la305137m] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/20/2023]
Abstract
In principle, incorporation of comb-like block copolymers in multilayer polyelectrolyte films can both increase film thickness relative to coatings containing linear polymers and provide more swollen films for increased sorption of proteins. In the absence of added salt, alternating adsorption of 5 bilayers of protonated poly(allylamine) (PAH) and comb-like poly(2-hydroxyethyl methacrylate)-graft-poly(acrylic acid) (PHEMA-g-PAA) leads to ∼2-fold thicker coatings than adsorption of PAH and linear PAA, and the difference in the thicknesses of the two coatings increases with the number of bilayers. Moreover, the (PAH/PHEMA-g-PAA)n films sorb 2- to 4-fold more protein than corresponding films prepared with linear PAA, and coatings deposited at pH 3.0 sorb more protein than coatings adsorbed at pH 5.0, 7.0, or 9.0. In fact changes in deposition pH and addition of 0.5 M NaCl to polyelectrolyte adsorption solutions alter protein sorption more dramatically than variations in the constituent polymer architecture. When deposited from 0.5 M NaCl at pH 3.0, both (PAH/PHEMA-g-PAA)5 and (PAH/PAA)5 films increase in thickness more than 400% upon adsorption of lysozyme. These films contain a high concentration of free -COOH groups, and subsequent deprotonation of these groups at neutral pH likely contributes to increased protein binding. Lysozyme sorption stabilizes these films, as without lysozyme films deposited at pH 3.0 from 0.5 M NaCl desorb at neutral pH. Films deposited at pH 9.0 from 0.5 M NaCl are more stable and also bind large amounts of lysozyme. The high binding capacities of these films make them attractive for potential applications in protein isolation or immobilization of enzymes.
Collapse
Affiliation(s)
| | | | | | - Salinda Wijeratne
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
| | - Merlin L. Bruening
- Department of Chemistry, Michigan State University, East Lansing, Michigan 48824, USA
| | | |
Collapse
|
21
|
Pavlov AM, Sukhorukov GB, Gould DJ. Lessons in microcapsule assembly from imaging delivery of a bioluminescent enzyme. Biomacromolecules 2013; 14:608-12. [PMID: 23398503 DOI: 10.1021/bm3019054] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Layer-by-layer assembled microcapsules have potential applications as delivery and biosensing systems, which make them attractive tools for use in various aspects of nanomedicine. We examined the effect of microcapsule location on activity of the bioluminescent enzyme luciferase in both intact capsules and following cell uptake. In intact capsules, the rate of reaction of luciferase was greatest for luciferase in the outer layer and least in the core. Following cell uptake, luciferase in the outer layer was rapidly reactive, and a similar rate of reaction and activity was observed for luciferase placed in capsule interior (core). By contrast, there was minimal activity detected when microcapsules with luciferase sandwiched between polyelectrolytes in a middle layer were delivered to cells. This study informs us of the availability of bioactive molecules located in different positions within microcapsules and will enable better microcapsule construction in line with the intended application, particularly delivery of functional proteins to cells.
Collapse
Affiliation(s)
- Anton M Pavlov
- Queen Mary University of London , School of Engineering & Materials Science, London, E1 4NS, UK
| | | | | |
Collapse
|
22
|
Keeney M, Mathur M, Cheng E, Tong X, Yang F. Effects of polymer end-group chemistry and order of deposition on controlled protein delivery from layer-by-layer assembly. Biomacromolecules 2013; 14:794-800. [PMID: 23360295 DOI: 10.1021/bm3018559] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Layer-by-layer (LBL) assembly is an attractive platform for controlled release of biologics given its mild fabrication process and versatility in coating substrates of any shape. Proteins can be incorporated into LBL coatings by sequentially depositing oppositely charged polyelectrolytes, which self-assemble into nanoscale films on medical devices or tissue engineering scaffolds. However, previously reported LBL platforms often require the use of a few hundred layers to avoid burst release, which hinders their broad translation due to the lengthy fabrication process, cost, and batch-to-batch variability. Here we report a biodegradable LBL platform composed of only 10 layers with tunable protein release kinetics, which is an order of magnitude less than previously reported LBL platforms. We performed a combinatorial study to examine the effects of polymer chemistry and order of deposition of poly(β-amino) esters on protein release kinetics under 81 LBL assembly conditions. Using the optimal "polyelectrolyte couples" for constructing the LBL film, basic fibroblast growth factor (bFGF) was released gradually over 14 days with retained biological activity to stimulate cell proliferation. The method reported herein is applicable for coating various substrates including metals, polymers, and ceramics and may be used for a broad range of biomedical and tissue engineering applications.
Collapse
Affiliation(s)
- Michael Keeney
- Departments of Orthopaedic Surgery, Stanford University, Stanford, CA 94305, USA
| | | | | | | | | |
Collapse
|
23
|
Chen F, Dai D, Yang J, Fei Z, Zhong M. Controlled Synthesis of Polyelectrolytes by 4-Cyanopentanoic Acid Dithiobenzoate Mediated RAFT Polymerization. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2013. [DOI: 10.1080/10601325.2013.814329] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
|
24
|
Application of polyhydroxylated fullerene derivatives in hemoglobin biosensors with enhanced antioxidant capacity. Electrochem commun 2012. [DOI: 10.1016/j.elecom.2012.04.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
|
25
|
Kim J, Chung YM, Kang SM, Choi CH, Kim BY, Kwon YT, Kim TJ, Oh SH, Lee CS. Palladium Nanocatalysts Immobilized on Functionalized Resin for the Direct Synthesis of Hydrogen Peroxide from Hydrogen and Oxygen. ACS Catal 2012. [DOI: 10.1021/cs300090h] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Jongmin Kim
- Department of Chemical Engineering, Chungnam National University, Yuseong-gu, Daejeon 305-764,
Republic of Korea
| | - Young-Min Chung
- Catalyst Lab, Catalyst & Process R&D Centre, SK innovation, Yuseong-gu, Daejeon 305-712, Republic of Korea
| | - Sung-Min Kang
- Department of Chemical Engineering, Chungnam National University, Yuseong-gu, Daejeon 305-764,
Republic of Korea
| | - Chang-Hyung Choi
- Department of Chemical Engineering, Chungnam National University, Yuseong-gu, Daejeon 305-764,
Republic of Korea
| | - Bo-Yeol Kim
- Department of Chemical Engineering, Chungnam National University, Yuseong-gu, Daejeon 305-764,
Republic of Korea
| | - Yong-Tak Kwon
- Catalyst Lab, Catalyst & Process R&D Centre, SK innovation, Yuseong-gu, Daejeon 305-712, Republic of Korea
| | - Tae Jin Kim
- Catalyst Lab, Catalyst & Process R&D Centre, SK innovation, Yuseong-gu, Daejeon 305-712, Republic of Korea
| | - Seung-Hoon Oh
- Catalyst Lab, Catalyst & Process R&D Centre, SK innovation, Yuseong-gu, Daejeon 305-712, Republic of Korea
| | - Chang-Soo Lee
- Department of Chemical Engineering, Chungnam National University, Yuseong-gu, Daejeon 305-764,
Republic of Korea
| |
Collapse
|
26
|
Evaluation of antioxidative capacity via measurement of the damage of DNA using an electrochemical biosensor and an ionic liquid solvent. Mikrochim Acta 2011. [DOI: 10.1007/s00604-011-0739-4] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
|
27
|
Bian C, Xiong H, Zhang X, Wen W, Wang S. An electrochemical biosensor for analysis of Fenton-mediated oxidative damage to BSA using poly-o-phenylenediamine as electroactive probe. Biosens Bioelectron 2011; 28:216-20. [DOI: 10.1016/j.bios.2011.07.021] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2011] [Revised: 06/21/2011] [Accepted: 07/11/2011] [Indexed: 11/17/2022]
|
28
|
Wilson JT, Cui W, Kozlovskaya V, Kharlampieva E, Pan D, Qu Z, Krishnamurthy VR, Mets J, Kumar V, Wen J, Song Y, Tsukruk VV, Chaikof EL. Cell surface engineering with polyelectrolyte multilayer thin films. J Am Chem Soc 2011; 133:7054-64. [PMID: 21491937 DOI: 10.1021/ja110926s] [Citation(s) in RCA: 143] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
Layer-by-layer assembly of polyelectrolyte multilayer (PEM) films represents a bottom-up approach for re-engineering the molecular landscape of cell surfaces with spatially continuous and molecularly uniform ultrathin films. However, fabricating PEMs on viable cells has proven challenging owing to the high cytotoxicity of polycations. Here, we report the rational engineering of a new class of PEMs with modular biological functionality and tunable physicochemical properties which have been engineered to abrogate cytotoxicity. Specifically, we have discovered a subset of cationic copolymers that undergoes a conformational change, which mitigates membrane disruption and facilitates the deposition of PEMs on cell surfaces that are tailorable in composition, reactivity, thickness, and mechanical properties. Furthermore, we demonstrate the first successful in vivo application of PEM-engineered cells, which maintained viability and function upon transplantation and were used as carriers for in vivo delivery of PEMs containing biomolecular payloads. This new class of polymeric film and the design strategies developed herein establish an enabling technology for cell transplantation and other therapies based on engineered cells.
Collapse
Affiliation(s)
- John T Wilson
- Wallace H. Coulter Department of Biomedical Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, USA
| | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Kellum MG, Harris CA, Mccormick CL, Morgan SE. Stimuli‐responsive micelles of amphiphilic AMPS‐
b
‐AAL copolymers in layer‐by‐layer films. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/pola.24524] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Matthew G. Kellum
- Department of Polymer Science, University of Southern Mississippi, Hattiesburg, Mississippi 39406
| | - Christopher A. Harris
- Department of Polymer Science, University of Southern Mississippi, Hattiesburg, Mississippi 39406
| | - Charles L. Mccormick
- Department of Polymer Science, University of Southern Mississippi, Hattiesburg, Mississippi 39406
- Department of Chemistry and Biochemistry, University of Southern Mississippi, Hattiesburg, Mississippi 39406
| | - Sarah E. Morgan
- Department of Polymer Science, University of Southern Mississippi, Hattiesburg, Mississippi 39406
| |
Collapse
|
30
|
Zheng Z, Zhang X, Carbo D, Clark C, Nathan CA, Lvov Y. Sonication-assisted synthesis of polyelectrolyte-coated curcumin nanoparticles. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:7679-81. [PMID: 20459072 PMCID: PMC2898898 DOI: 10.1021/la101246a] [Citation(s) in RCA: 89] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
A new method of nanoparticle formulation for poorly water-soluble materials was demonstrated for curcumin. The drug was dissolved in organic solvent that is miscible with water (ethanol), and drug nucleation was initiated by gradual worsening of the solution by the addition of an aqueous polyelectrolyte assisted by ultrasonication. Curcumin crystals of 60-100 nm size were obtained depending on the component concentrations, sonication power, and initial solvent. Layer-by-layer shell assembly with biocompatible polyelectrolytes was used to provide a particle coating with a high surface potential and the stabilization of drug nanocolloids. Polyelectrolyte layer-by-layer encapsulation allowed sustained drug release from nanoparticles over the range of 10-20 h.
Collapse
Affiliation(s)
- Zhiguo Zheng
- Institute for Micromanufacturing, Chemistry Dep., Louisiana Tech University, Ruston LA 71272
| | - Xingcai Zhang
- Institute for Micromanufacturing, Chemistry Dep., Louisiana Tech University, Ruston LA 71272
| | - Daniel Carbo
- Institute for Micromanufacturing, Chemistry Dep., Louisiana Tech University, Ruston LA 71272
| | - Cheryl Clark
- Health Center, Louisiana State University, Shreveport, LA 71130
| | | | - Yuri Lvov
- Institute for Micromanufacturing, Chemistry Dep., Louisiana Tech University, Ruston LA 71272
| |
Collapse
|
31
|
Guo K, Hu Y, Zhang Y, Liu B, Magner E. Electrochemistry of nanozeolite-immobilized cytochrome c in aqueous and nonaqueous solutions. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2010; 26:9076-9081. [PMID: 20373776 DOI: 10.1021/la904630c] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The electrochemical properties of cytochrome c (cyt c) immobilized on multilayer nanozeolite-modified electrodes have been examined in aqueous and nonaqueous solutions. Layers of Linde type-L zeolites were assembled on indium tin oxide (ITO) glass electrodes followed by the adsorption of cyt c, primarily via electrostatic interactions, onto modified ITO electrodes. The heme protein displayed a quasi-reversible response in aqueous solution with a redox potential of +324 mV (vs NHE), and the surface coverage (Gamma*) increased linearly for the first four layers and then gave a nearly constant value of 200 pmol cm(-2). On immersion of the modified electrodes in 95% (v/v) nonaqueous solutions, the redox potential decreased significantly, a decrease that originated from changes in both the enthalpy and entropy of reduction. On reimmersion of the modified electrode in buffer, the faradic response immediately returned to its original value. These results demonstrate that nanozeolites are potential stable supports for redox proteins and enzymes.
Collapse
Affiliation(s)
- Kai Guo
- Department of Chemistry, Fudan University, Shanghai 200433, China
| | | | | | | | | |
Collapse
|
32
|
Low-cost, transparent, and flexible single-walled carbon nanotube nanocomposite based ion-sensitive field-effect transistors for pH/glucose sensing. Biosens Bioelectron 2010; 25:2259-64. [DOI: 10.1016/j.bios.2010.03.003] [Citation(s) in RCA: 85] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2009] [Revised: 02/14/2010] [Accepted: 03/02/2010] [Indexed: 11/23/2022]
|
33
|
Dragan ES, Bucatariu F, Hitruc G. Sorption of Proteins onto Porous Single-Component Poly(vinyl amine) Multilayer Thin Films. Biomacromolecules 2010; 11:787-96. [DOI: 10.1021/bm9014057] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Affiliation(s)
- Ecaterina Stela Dragan
- “Petru Poni” Institute of Macromolecular Chemistry, Aleea Grigore Ghica Voda 41 A, RO-700487 Iasi, Romania
| | - Florin Bucatariu
- “Petru Poni” Institute of Macromolecular Chemistry, Aleea Grigore Ghica Voda 41 A, RO-700487 Iasi, Romania
| | - Gabriela Hitruc
- “Petru Poni” Institute of Macromolecular Chemistry, Aleea Grigore Ghica Voda 41 A, RO-700487 Iasi, Romania
| |
Collapse
|
34
|
Yoshida K, Sato K, Anzai JI. Layer-by-layer polyelectrolyte films containing insulin for pH-triggered release. ACTA ACUST UNITED AC 2010. [DOI: 10.1039/b918226h] [Citation(s) in RCA: 65] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
35
|
Enzyme-Encapsulated Layer-by-Layer Assemblies: Current Status and Challenges Toward Ultimate Nanodevices. MODERN TECHNIQUES FOR NANO- AND MICROREACTORS/-REACTIONS 2010. [DOI: 10.1007/12_2009_42] [Citation(s) in RCA: 83] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
|
36
|
Balkundi SS, Veerabadran NG, Eby DM, Johnson GR, Lvov YM. Encapsulation of bacterial spores in nanoorganized polyelectrolyte shells. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:14011-14016. [PMID: 19469562 DOI: 10.1021/la900971h] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Layer-by-layer assembly uses alternating charged layers of polyionic polymers to coat materials sequentially in a sheath of functionalized nanofilms. Bacterial spores were encapsulated in organized ultrathin shells using layer-by-layer assembly in order to assess the biomaterial as a suitable core and determine the physiological effects of the coating. The shells were constructed on Bacillus subtilis spores using biocompatible polymers polyglutamic acid, polylysine, albumin, lysozyme, gelatin A, protamine sulfate, and chondroitin sulfate. The assembly process was monitored by measuring the electrical surface potential (zeta-potential) of the particles at each stage of assembly. Fluorescent laser confocal microscopy and scanning electron microscopy confirmed the formation of uniform coatings on the spores. The coating surface charge and thickness (20-100 nm) could be selectively tuned by using appropriate polymers and the number of bilayers assembled. The effect of each coating type on germination was assessed and compared to native spores. The coated spores were viable, but the kinetics and extent of germination were changed from control spores in all instances. The results and insight gained from the experiments may be used to design various bioinspired systems. The spores can be made dormant for a desired amount of time using the LbL encapsulation technique and can be made active when appropriate.
Collapse
Affiliation(s)
- Shantanu S Balkundi
- Institute for Micromanufacturing and Biomedical Engineering Program, Louisiana Tech University, Ruston, Louisiana, USA
| | | | | | | | | |
Collapse
|
37
|
Mertz D, Vogt C, Hemmerlé J, Mutterer J, Ball V, Voegel JC, Schaaf P, Lavalle P. Mechanotransductive surfaces for reversible biocatalysis activation. NATURE MATERIALS 2009; 8:731-735. [PMID: 19668209 DOI: 10.1038/nmat2504] [Citation(s) in RCA: 100] [Impact Index Per Article: 6.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/12/2009] [Accepted: 06/25/2009] [Indexed: 05/28/2023]
Abstract
Fibronectin, like other proteins involved in mechanotransduction, has the ability to exhibit recognition sites under mechanical stretch. Such cryptic sites are buried inside the protein structure in the native fold and become exposed under an applied force, thereby activating specific signalling pathways. Here, we report the design of new active polymeric nanoassembled surfaces that show some similarities to these cryptic sites. These nanoassemblies consist of a first polyelectrolyte multilayer stratum loaded with enzymes and capped with a second polyelectrolyte multilayer acting as a mechanically sensitive nanobarrier. The biocatalytic activity of the film is switched on/off reversibly by mechanical stretching, which exposes enzymes through the capping barrier, similarly to mechanisms involved in proteins during mechanotransduction. This first example of a new class of biologically inspired surfaces should have great potential in the design of various devices aimed to trigger and modulate chemical reactions by mechanical action with applications in the field of microfluidic devices or mechanically controlled biopatches for example.
Collapse
Affiliation(s)
- Damien Mertz
- Institut National de la Santé et de la Recherche Médicale, INSERM Unité 977, Biomaterials and Tissue Engineering, 11 rue Humann, 67085 Strasbourg Cedex, France
| | | | | | | | | | | | | | | |
Collapse
|
38
|
Stawski D, Bellmann C. Electrokinetic properties of polypropylene textile fabrics containing deposited layers of polyelectrolytes. Colloids Surf A Physicochem Eng Asp 2009. [DOI: 10.1016/j.colsurfa.2009.05.005] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
|
39
|
Zhang F, Liu LJ, Wu Q, Lin XF. Design and in vitro
Biodegradation of Novel Hepatocyte-Targetable (Galactose Polycation/Hemoglobin) Multilayers and Microcapsules. MACROMOL CHEM PHYS 2009. [DOI: 10.1002/macp.200900062] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
40
|
Ball V, Bernsmann F, Betscha C, Maechling C, Kauffmann S, Senger B, Voegel JC, Schaaf P, Benkirane-Jessel N. Polyelectrolyte multilayer films built from poly(L-lysine) and a two-component anionic polysaccharide blend. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:3593-3600. [PMID: 19708245 DOI: 10.1021/la803730j] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The buildup of polyelectrolyte multilayer films made from poly(L-lysine) (PLL) as a polycation and from a blend of two anionic polysaccharides, namely, beta-1,3 glycan sulfate (GlyS) and alginate (Alg), was investigated as a function of the mass fraction, x, of GlyS in the blend, at a constant total weight concentration in polyanions. We find that the film thickness, after the deposition of a given number of layer pairs, reaches a minimum for x values lower than 0.1 (the position of this minimum could not be more precisely localized) and that the film thickness at intermediate values of x is the same as that of films built at the same concentration of GlyS in the absence of Alg (pure GlyS solution). Infrared spectroscopy in the attenuated total reflection mode shows that the weight fraction of GlyS in the multilayer films is much higher than its weight fraction, x, in the blend used to build the film. This preferential incorporation of GlyS over Alg is related to preferential interactions of GlyS as compared to Alg with PLL in solution, as measured by means of isothermal titration calorimetry. We also demonstrate that GlyS is able to displace Alg almost quantitatively from (PLL/Alg)n films but that in contrast Alg is not able to exchange GlyS from (PLL/GlyS)n films. These results, which combine adsorption from blended polyanion solutions, exchange of one polyanion already present in the film by the other in solution, and thermodynamic measurements, suggest that sulfated polymers are able to interact with polycations preferentially over polymers carrying carboxylated charged groups. These results give a first structural basis to the mechanism of preferential incorporation of a given polyanion with respect to another.
Collapse
Affiliation(s)
- Vincent Ball
- Institut National de la Santé et de la Recherche Médicale, Unité 977, 11 rue Humann, 67085 Strasbourg Cedex, France.
| | | | | | | | | | | | | | | | | |
Collapse
|
41
|
Zu Y, Liu H, Zhang Y, Hu N. Electrochemical detection of in situ DNA damage with layer-by-layer films containing DNA and glucose oxidase and protection effect of catalase layers against DNA damage. Electrochim Acta 2009. [DOI: 10.1016/j.electacta.2008.11.041] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
|
42
|
Wiemann LO, Buthe A, Klein M, van den Wittenboer A, Dähne L, Ansorge-Schumacher MB. Encapsulation of synthetically valuable biocatalysts into polyelectrolyte multilayer systems. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2009; 25:618-623. [PMID: 19209447 DOI: 10.1021/la803152c] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
Layer-by-Layer (LbL) technology recently turned out to be a versatile tool for the encapsulation of bioactive entities. In this study, the factual potential of this technology to encapsulate synthetically valuable biocatalysts, that is enzymes and whole cells expressing a specific catalytic activity, was investigated. The biocatalysts were embedded into a polyelectrolyte multilayer system involving poly(allylamine) hydrochloride (PAH) and poly(styrene sulfonate) sodium salt (PSS). The enzymes were adsorbed to CaCO3 or DEAE-cellulose previous to encapsulation. A slight increase (32%) of the catalytic performance was observed for lipase B from Candida antarctica when four layers of polyelectrolytes were applied. On the whole, however, the residual activity of the investigated enzymes after encapsulation was rather low. Similar results were obtained with whole-cell biocatalysts. It was found that the activity decrease can be attributed to mass transfer restrictions as well as direct interactions between polyelectrolytes and catalytically active molecules. Both effects need to be understood in more detail before LbL technology can be advanced to technically efficient biocatalysis.
Collapse
Affiliation(s)
- Lars O Wiemann
- RWTH Aachen UniVersity, Department of Biotechnology, Worringerweg 1, D-52074 Aachen, Germany
| | | | | | | | | | | |
Collapse
|
43
|
Pescador P, Katakis I, Toca-Herrera JL, Donath E. Efficiency of a bienzyme sequential reaction system immobilized on polyelectrolyte multilayer-coated colloids. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2008; 24:14108-14114. [PMID: 19360959 DOI: 10.1021/la8027435] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We assembled multilayer films of glucose oxidase (GOx) and horseradish peroxidase (HRP) coimmobilized together with polyelectrolyte layers on the surface of silica microparticles. The influence of different polyelectrolyte combinations on the immobilization and functionality of the enzymes was examined for several multilayer configurations. Precomplexation of the enzymes with a polyvinylpyridine-based polyamine allowed the stable adsorption of enzyme layers without affecting their catalytic activity. The efficiency of the sequential reaction between GOx and HRP on the surface of the colloids was quantitatively analyzed and rationalized in terms of the kinetic parameters of both enzymes and the reaction-diffusion kinetics of the system. In the optimized configuration, with GOx and HRP coimmobilized in the same layer, the overall rate of hydrogen peroxide conversion was around 2.5 times higher than for GOx and HRP in separate layers or for equivalent amounts of both enzymes free in solution.
Collapse
Affiliation(s)
- Paula Pescador
- Bioengineering and Bioelectrochemistry Group, Departament d'Enginyeria Química, Escola Tècnica Superior d'Enginyeria Química, Universitat Rovira i Virgili, E-43007 Tarragona, Spain.
| | | | | | | |
Collapse
|
44
|
Liu Y, Hu N. Enhanced DNA Oxidative Damage by Acrylonitrile and Protecting DNA from Damage with an Outer Catalase Layer: an Electrochemical Study. ELECTROANAL 2008. [DOI: 10.1002/elan.200804384] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
45
|
Ariga K, Hill JP, Ji Q. Biomaterials and Biofunctionality in Layered Macromolecular Assemblies. Macromol Biosci 2008; 8:981-90. [DOI: 10.1002/mabi.200800102] [Citation(s) in RCA: 99] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
|
46
|
Shutava TG, Balkundi SS, Lvov YM. (-)-Epigallocatechin gallate/gelatin layer-by-layer assembled films and microcapsules. J Colloid Interface Sci 2008; 330:276-83. [PMID: 19027120 DOI: 10.1016/j.jcis.2008.10.082] [Citation(s) in RCA: 92] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2008] [Revised: 10/28/2008] [Accepted: 10/31/2008] [Indexed: 11/26/2022]
Abstract
A new type of protein/polyphenol microcapsules on the basis of naturally occurring polyphenol (-)-epigallocatechin gallate (EGCG) and gelatin, type A, was obtained using the layer-by-layer (LbL) assembly method. The microcapsules show a more pronounced dependence of permeability on molecular weight of permeating substances than commonly used polyallylamine/polystyrene sulfonate capsules. The regularities of EGCG adsorption in alternation with type A and B gelatins have been investigated using quartz crystal microbalance and electrophoretic mobility measurements on microparticles and found to be dependent on gelatin properties. EGCG in the LbL assemblies retains its antioxidant activity. The kinetics of the reaction of 2,2'-azinobis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt (ABTS) cation-radicals with films consisting of 1-10 gelatin/EGCG bilayers is affected by film structure. The EGCG content in the protein/polyphenol film material is as high as 30% w/w. Encapsulation of EGCG via its alternated adsorption with gelatins can be a perspective way to new formulations containing the polyphenol for drug delivery applications.
Collapse
Affiliation(s)
- Tatsiana G Shutava
- Institute for Micromanufacturing, Louisiana Tech University, Ruston, LA 71272, USA.
| | | | | |
Collapse
|
47
|
Lu H, Rusling JF, Hu N. Protecting peroxidase activity of multilayer enzyme-polyion films using outer catalase layers. J Phys Chem B 2007; 111:14378-86. [PMID: 18052272 PMCID: PMC2546493 DOI: 10.1021/jp076036w] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Films constructed layer-by-layer on electrodes with architecture {protein/hyaluronic acid (HA)}n containing myoglobin (Mb) or horseradish peroxidase (HRP) were protected against protein damage by H2O2 by using outer catalase layers. Peroxidase activity for substrate oxidation requires activation by H2O2, but {protein/HA}n films without outer catalase layers are damaged slowly and irreversibly by H2O2. The rate and extent of damage were decreased dramatically by adding outer catalase layers to decompose H2O2. Comparative studies suggest that protection results from catalase decomposing a fraction of the H2O2 as it enters the film, rather than by an in-film diffusion barrier. The outer catalase layers controlled the rate of H2O2 entry into inner regions of the film, and they biased the system to favor electrocatalytic peroxide reduction over enzyme damage. Catalase-protected {protein/HA}n films had an increased linear concentration range for H2O2 detection. This approach offers an effective way to protect biosensors from damage by H2O2.
Collapse
Affiliation(s)
- Haiyun Lu
- Department of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| | - James F. Rusling
- Department of Chemistry, University of Connecticut, U-60, Storrs, CT 06269-3060, USA
- Department of Pharmacology, University of Connecticut Health Center, Farmington, CT 06032, USA
| | - Naifei Hu
- Department of Chemistry, Beijing Normal University, Beijing 100875, P. R. China
| |
Collapse
|
48
|
Shutova TG, Agabekov VE, Lvov YM. Reaction of radical cations with multilayers of tannic acid and polyelectrolytes. RUSS J GEN CHEM+ 2007. [DOI: 10.1134/s1070363207090034] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
49
|
Hassler BL, Kohli N, Zeikus JG, Lee I, Worden RM. Renewable dehydrogenase-based interfaces for bioelectronic applications. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2007; 23:7127-33. [PMID: 17503864 DOI: 10.1021/la7004437] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/15/2023]
Abstract
Bioelectronic interfaces that establish electrical communication between redox enzymes and electrodes have potential applications as biosensors, biocatalytic reactors, and biological fuel cells. However, these interfaces contain labile components, including enzymes and cofactors, which have limited lifetimes and must be replaced periodically to allow long-term operation. Current methods to fabricate bioelectronic interfaces do not allow facile replacement of these components, thus limiting the useful lifetime of the interfaces. In this paper we describe a versatile new fabrication approach that binds the enzymes and cofactors using reversible ionic interactions. This approach allows the interface to be removed via a simple pH change and then replaced to fully regenerate the biocatalytic activity. The positively charged polyelectrolyte poly(ethylenimine) was used to ionically bond a dehydrogenase enzyme and its cofactor to a gold electrode that was functionalized with 3-mercaptopropionic acid and the electron mediator toluidine blue O. By reducing the pH, the surface-bound 3-mercaptopropionic acid was protonated, disrupting the ionic bonds and releasing the enzyme-modified polyelectrolyte. After neutralization, fresh enzyme and cofactor were bound, regenerating the bioelectronic interface. Cyclic voltammetry, chronoamperometry, constant potential amperometry, electrochemical impedance spectroscopy, and Fourier transform infrared spectroscopy analyses were used to characterize the bioelectronic interfaces. For the two enzymes tested (secondary alcohol dehydrogenase and sorbitol dehydrogenase) and their respective cofactors (beta-nicotinamide adenine dinucleotide phosphate and beta-nicotinamide adenine dinucleotide), the reconstituted interface exhibited a surface coverage, an electron-transfer coefficient, and a turnover rate similar to those of the original interface.
Collapse
Affiliation(s)
- Brian L Hassler
- Department of Chemical Engineering and Materials Science, Michigan State University, East Lansing, MI 48824, USA
| | | | | | | | | |
Collapse
|
50
|
Xing Q, Eadula SR, Lvov YM. Cellulose Fiber−Enzyme Composites Fabricated through Layer-by-Layer Nanoassembly. Biomacromolecules 2007; 8:1987-91. [PMID: 17523656 DOI: 10.1021/bm070125x] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Cellulose microfibers were coated with enzymes, laccase and urease, through layer-by-layer assembly by alternate adsorption with oppositely charged polycations. The formation of organized polyelectrolyte and enzyme multilayer films of 15-20 nm thickness was demonstrated by quartz crystal microbalance, zeta-potential analysis, and confocal laser scanning microscopy. These biocomposites retained enzymatic catalytic activity, which was proportional to the number of coated enzyme layers. For laccase-fiber composites, around 50% of its initial activity was retained after 2 weeks of storage at 4 degrees C. The synthesis of calcium carbonate microparticles on urease-fiber composites confirmed urease functionality and demonstrated its possible applications. This strategy could be employed to fabricate fiber-based composites with novel biological functions.
Collapse
Affiliation(s)
- Qi Xing
- Institute for Micromanufacturing, Louisiana Tech University, Ruston, Louisiana 71272, USA
| | | | | |
Collapse
|