1
|
Gao J, Liu H, Tong C. Controllable Synthesis of Hemoglobin-Metal Phosphate Organic-Inorganic Hybrid Nanoflowers and Their Applications in Biocatalysis. Inorg Chem 2023; 62:13812-13823. [PMID: 37584534 DOI: 10.1021/acs.inorgchem.3c01539] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/17/2023]
Abstract
In recent years, organic-inorganic hybrid nanoflower technology has become an effective method for enzyme immobilization. Here, seven hierarchical flower-like hemoglobin-phosphate organic-inorganic hybrid nanomaterials (Hb-M3(PO4)2·nH2O HNFs) were synthesized through an improved universal one-pot wet-chemical method, with Ca2+, Mn2+, Fe2+, Co2+, Ni2+, Cu2+ and Zn2+ as inorganic components. In this synthesis process, the metal cations are successively involved in the coordination reaction with Hb and the metathesis reaction to generate phosphate precipitation. The coordination ability of metal cations and the generation rate of phosphate precipitations were evaluated, then the progress of the two chemical reactions was controlled synchronously by adjusting the phosphate buffer (PB) concentration, and finally a flower-like structure conducive to substrate diffusion and transport was obtained. Due to the conformational transformation of hemoglobin and the abundant Cu2+/Fe3+ active sites, the hemoglobin-Cu3(PO4)2·3H2O nanoflowers have extremely high catalytic activity, which is ∼14 times that of Hb. Importantly, this method is suitable for the monometallic-ionic, polymetallic-ionic and polyvalent metal-ion nanoflowers, which broadens the chemical composition and structural diversity of nanoflowers.
Collapse
Affiliation(s)
- Jiaojiao Gao
- College of Chemistry and Chemical Engineering, Yan'an University, Yan'an 716000, P. R. China
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Hui Liu
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| | - Cheng Tong
- School of Materials Science and Engineering, Shaanxi Key Laboratory of Green Preparation and Functionalization for Inorganic Materials, Shaanxi University of Science and Technology, Xi'an 710021, P. R. China
| |
Collapse
|
2
|
Murty R, Bera MK, Walton IM, Whetzel C, Prausnitz MR, Walton KS. Interrogating Encapsulated Protein Structure within Metal-Organic Frameworks at Elevated Temperature. J Am Chem Soc 2023; 145:7323-7330. [PMID: 36961883 PMCID: PMC10080685 DOI: 10.1021/jacs.2c13525] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/26/2023]
Abstract
Encapsulating biomacromolecules within metal-organic frameworks (MOFs) can confer thermostability to entrapped guests. It has been hypothesized that the confinement of guest molecules within a rigid MOF scaffold results in heightened stability of the guests, but no direct evidence of this mechanism has been shown. Here, we present a novel analytical method using small-angle X-ray scattering (SAXS) to solve the structure of bovine serum albumin (BSA) while encapsulated within two zeolitic imidazolate frameworks (ZIF-67 and ZIF-8). Our approach comprises subtracting the scaled SAXS spectrum of the ZIF from that of the biocomposite BSA@ZIF to determine the radius of gyration of encapsulated BSA through Guinier, Kratky, and pair distance distribution function analyses. While native BSA exposed to 70 °C became denatured, in situ SAXS analysis showed that encapsulated BSA retained its size and folded state at 70 °C when encapsulated within a ZIF scaffold, suggesting that entrapment within MOF cavities inhibited protein unfolding and thus denaturation. This method of SAXS analysis not only provides insight into biomolecular stabilization in MOFs but may also offer a new approach to study the structure of other conformationally labile molecules in rigid matrices.
Collapse
Affiliation(s)
- Rohan Murty
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Mrinal K Bera
- NSF's ChemMatCARS, Pritzker School of Molecular Engineering, The University of Chicago, Chicago, Illinois 60637, United States
| | - Ian M Walton
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Christina Whetzel
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Mark R Prausnitz
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| | - Krista S Walton
- School of Chemical and Biomolecular Engineering, Georgia Institute of Technology, Atlanta, Georgia 30332, United States
| |
Collapse
|
3
|
Matsuura SI, Baba T, Ikeda T, Yamamoto K, Tsunoda T, Yamaguchi A. Highly Precise and Sensitive Polymerase Chain Reaction Using Mesoporous Silica-Immobilized Enzymes. ACS APPLIED MATERIALS & INTERFACES 2022; 14:29483-29490. [PMID: 35700238 PMCID: PMC9266630 DOI: 10.1021/acsami.2c01992] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
A highly precise and sensitive technology that enables DNA amplification/detection from minimal amounts of nucleic acid is expected to find applicability in genetic testing involving small amounts of samples. The use of a free enzyme in conventional DNA amplification techniques, such as the polymerase chain reaction (PCR), frequently causes side reactions (i.e., nonspecific DNA amplification) when ≤103 substrate DNA molecules are present, thereby preventing selective amplification of the target DNA. To address this issue, we have developed a novel DNA amplification system, mesoporous silica-enhanced PCR (MSE-PCR), which involves the immobilization of a thermostable DNA polymerase from Thermococcus kodakaraensis (KOD DNA polymerase) into highly ordered nanopores of the mesoporous silica to control the reaction environment around the enzyme. In the MSE-PCR system using immobilized KOD DNA polymerase, such nonspecific DNA amplification was remarkably inhibited under the same conditions. Furthermore, the optimization of mesoporous silica pore sizes enabled selective and efficient DNA amplification from DNA substrates at the single-molecule level, i.e., one ten-thousandth of the amount of substrate DNA required for a DNA amplification reaction using a free enzyme. The results obtained in this study have shown that the nanopores of mesoporous silica can inhibit nonspecific reactions in DNA amplification, thereby considerably improving the specificity and sensitivity of the DNA polymerase reaction.
Collapse
Affiliation(s)
- Shun-ichi Matsuura
- Research
Institute for Chemical Process Technology, National Institute of Advanced Industrial Science and Technology
(AIST), 4-2-1 Nigatake, Miyagino-ku, Sendai, Miyagi 983-8551, Japan
| | - Tomoya Baba
- Advanced
Genomics Center, National Institute of Genetics, 1111 Yata, Mishima, Shizuoka 411-8540, Japan
- Joint
Support-Center for Data Science Research, Research Organization of Information and Systems, 10-3 Midori-cho, Tachikawa, Tokyo 190-0014, Japan
| | - Takuji Ikeda
- Research
Institute for Chemical Process Technology, National Institute of Advanced Industrial Science and Technology
(AIST), 4-2-1 Nigatake, Miyagino-ku, Sendai, Miyagi 983-8551, Japan
| | - Katsutoshi Yamamoto
- Faculty
of Environmental Engineering, The University
of Kitakyushu, 1-1 Hibikino, Wakamatsu-ku, Kitakyushu, Fukuoka 808-0135, Japan
| | - Tatsuo Tsunoda
- Research
Institute for Chemical Process Technology, National Institute of Advanced Industrial Science and Technology
(AIST), 4-2-1 Nigatake, Miyagino-ku, Sendai, Miyagi 983-8551, Japan
| | - Aritomo Yamaguchi
- Research
Institute for Chemical Process Technology, National Institute of Advanced Industrial Science and Technology
(AIST), 4-2-1 Nigatake, Miyagino-ku, Sendai, Miyagi 983-8551, Japan
| |
Collapse
|
4
|
Jordanoski D, Drobne D, Repar N, Dogsa I, Mrak P, Cerc-Korošec R, Škapin AS, Nadrah P, Poklar Ulrih N. A Novel Artificial Hemoglobin Carrier Based on Heulandite-Calcium Mesoporous Aluminosilicate Particles. Int J Mol Sci 2022; 23:7460. [PMID: 35806461 PMCID: PMC9267069 DOI: 10.3390/ijms23137460] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Revised: 06/30/2022] [Accepted: 07/01/2022] [Indexed: 02/04/2023] Open
Abstract
Tetraethyl-orthosilicate (TEOS)-based nanoparticles are most extensively used as a silica-based hemoglobin carrier system. However, TEOS-based nanoparticles induce adverse effects on the hemoglobin structure. Therefore, a heulandite-calcium-based carrier was investigated as a novel silica-based hemoglobin carrier system. The heulandite-calcium mesoporous aluminosilicate particles (MSPs) were fabricated by a patented tribo-mechanical activation process, according to the manufacturer, and its structure was assessed by X-ray diffraction analysis. Upon hemoglobin encapsulation, alternation in the secondary and tertiary structure was observed. The hemoglobin-particle interactions do not cause heme degradation or decreased activity. Once encapsulated inside the particle pores, the hemoglobin shows increased thermal stability, and higher loading capacity per gram of particles (by a factor of >1.4) when compared to TEOS-based nanoparticles. Futhermore, we introduced a PEGlyted lipid bilayer which significantly decreases the premature hemoglobin release and increases the colloidal stability. The newly developed hemoglobin carrier shows no cytotoxicity to human umbilical vein endothelial cells (HUVEC).
Collapse
Affiliation(s)
- Dino Jordanoski
- Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia; (D.J.); (D.D.); (N.R.); (I.D.); (P.M.)
| | - Damjana Drobne
- Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia; (D.J.); (D.D.); (N.R.); (I.D.); (P.M.)
| | - Neža Repar
- Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia; (D.J.); (D.D.); (N.R.); (I.D.); (P.M.)
| | - Iztok Dogsa
- Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia; (D.J.); (D.D.); (N.R.); (I.D.); (P.M.)
| | - Polona Mrak
- Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia; (D.J.); (D.D.); (N.R.); (I.D.); (P.M.)
| | - Romana Cerc-Korošec
- Faculty of Chemistry and Chemical Technology, University of Ljubljana, Večna Pot, 1000 Ljubljana, Slovenia;
| | - Andrijana Sever Škapin
- Slovenian National Bulding and Civil Engineering Institute, Dimičeva Ulica 12, 1000 Ljubljana, Slovenia; (A.S.Š.); (P.N.)
| | - Peter Nadrah
- Slovenian National Bulding and Civil Engineering Institute, Dimičeva Ulica 12, 1000 Ljubljana, Slovenia; (A.S.Š.); (P.N.)
| | - Natasa Poklar Ulrih
- Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, 1000 Ljubljana, Slovenia; (D.J.); (D.D.); (N.R.); (I.D.); (P.M.)
| |
Collapse
|
5
|
Matsuura SI, Ikeda T, Hiyoshi N, Chiba M, Yamaguchi A. Assemblies of two multimeric enzymes using mesoporous silica microspheres toward cascade reaction fields. Biochem Eng J 2022. [DOI: 10.1016/j.bej.2022.108416] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
|
6
|
Yamaguchi A, Saiga M, Inaba D, Aizawa M, Shibuya Y, Itoh T. Structural Characterization of Proteins Adsorbed at Nanoporous Materials. ANAL SCI 2021; 37:49-59. [PMID: 33431779 DOI: 10.2116/analsci.20sar05] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
A nanoporous material has been applied for the development of functional nanobiomaterials by utilizing its uniform pore structure and large adsorption capacity. The structure and stability of biomacromolecules, such as peptide, oligonucleotide, and protein, are primary factors to govern the performance of nanobiomaterials, so that their direct characterization methodologies are in progress. In this review, we focus on recent topics in the structural characterization of protein molecules adsorbed at a nanoporous material with uniform meso-sized pores. The thermal stabilities of the adsorbed proteins are also summarized to discuss whether the structure of the adsorbed protein molecules can be stabilized or not.
Collapse
Affiliation(s)
- Akira Yamaguchi
- Institute of Quantum Beam Science, Ibaraki University, 2-1-1, Bunkyo, Mito, Ibaraki, 310-8512, Japan.
| | - Masahiro Saiga
- Institute of Quantum Beam Science, Ibaraki University, 2-1-1, Bunkyo, Mito, Ibaraki, 310-8512, Japan
| | - Daiki Inaba
- Institute of Quantum Beam Science, Ibaraki University, 2-1-1, Bunkyo, Mito, Ibaraki, 310-8512, Japan
| | - Mami Aizawa
- Institute of Quantum Beam Science, Ibaraki University, 2-1-1, Bunkyo, Mito, Ibaraki, 310-8512, Japan
| | - Yuta Shibuya
- New Industry Creation Hatchery Center, Tohoku University, 2-1-1 Katahira, Aoba, Sendai, 980-8577, Japan
| | - Tetsuji Itoh
- National Institute of Advanced Industrial Science and Technology (AIST), 4-2-1 Nigatake, Miyagino, Sendai, 983-8551, Japan
| |
Collapse
|
7
|
Siddiqui S, Rather RA, Siddiqui ZN. Bovine serum albumin‐silica functionalized γ‐Fe
2
O
3
nanoparticles (BSA‐Si@Fe
2
O
3
): A highly efficient and magnetically recoverable heterogeneous catalyst for the synthesis of substituted pyrrole derivatives. Appl Organomet Chem 2021. [DOI: 10.1002/aoc.6232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
8
|
Kataoka T, Shiba K, Nagata S, Yamada I, Chai Y, Tagaya M. Preparation of Monodispersed Nanoporous Eu(III)/Titania Loaded with Ibuprofen: Optimum Loading, Luminescence, and Sustained Release. Inorg Chem 2021; 60:8765-8776. [PMID: 34080837 DOI: 10.1021/acs.inorgchem.1c00718] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Functional nanomaterials are one of the potential carriers for drug delivery, whereas there are many prerequisites for this purpose. The carrier should be monodispersed, be fluorescent, and have a proper nanostructure to keep/release drug molecules to achieve controlled release, although preparing a nanomaterial which fulfills all the demands is still very challenging. In this paper, we show the preparation of monodispersed nanoporous amorphous titania submicron particles with fluorescent property. They adsorb a model drug molecule-ibuprofen-with their surface coverage up to 100%. Such a perfect loading does not decrease the fluorescent intensity because of any quenching effects but even maximize it. We also demonstrate the release behavior of IBU into simulated body fluid. Interestingly, the present carrier releases most of IBU in 6 h, whereas that modified with the polyethylene glycol moiety takes 48 h to finish releasing IBU, indicating its potential for controlled release applications.
Collapse
Affiliation(s)
- Takuya Kataoka
- Department of Materials Science and Technology, Nagaoka University of Technology, Kamitomioka 1603-1, Nagaoka, Niigata 940-2188, Japan.,Research Fellow of the Japan Society for the Promotion of Science (DC), 5-3-1 Koji-machi, Chiyoda-ku, Tokyo 102-0083, Japan
| | - Kota Shiba
- Center for Functional Sensor & Actuator (CFSN), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki 305-0044, Japan.,John A. Paulson School of Engineering and Applied Sciences (SEAS), Harvard University, 9 Oxford Street, Cambridge, Massachusetts 02138, United States
| | - Shinya Nagata
- Department of Materials Science and Technology, Nagaoka University of Technology, Kamitomioka 1603-1, Nagaoka, Niigata 940-2188, Japan
| | - Iori Yamada
- Department of Materials Science and Technology, Nagaoka University of Technology, Kamitomioka 1603-1, Nagaoka, Niigata 940-2188, Japan.,Research Fellow of the Japan Society for the Promotion of Science (DC), 5-3-1 Koji-machi, Chiyoda-ku, Tokyo 102-0083, Japan
| | - Yadong Chai
- Department of Materials Science and Technology, Nagaoka University of Technology, Kamitomioka 1603-1, Nagaoka, Niigata 940-2188, Japan
| | - Motohiro Tagaya
- Department of Materials Science and Technology, Nagaoka University of Technology, Kamitomioka 1603-1, Nagaoka, Niigata 940-2188, Japan
| |
Collapse
|
9
|
Ajiboye AL, Trivedi V, Mitchell J. Mesoporous silica particles as potential carriers for protein drug delivery: protein immobilization and the effect of displacer on γ-globulin release. Drug Dev Ind Pharm 2020; 46:576-586. [DOI: 10.1080/03639045.2020.1742141] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Affiliation(s)
| | - Vivek Trivedi
- Medway School of Pharmacy, University of Kent, Kent, UK
| | - John Mitchell
- Faculty of Engineering and Science, University of Greenwich, Kent, UK
| |
Collapse
|
10
|
Myristic Acid Coated Protein Immobilised Mesoporous Silica Particles as pH Induced Oral Delivery System for the Delivery of Biomolecules. Pharmaceuticals (Basel) 2019; 12:ph12040153. [PMID: 31614725 PMCID: PMC6958430 DOI: 10.3390/ph12040153] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 09/30/2019] [Accepted: 10/10/2019] [Indexed: 12/31/2022] Open
Abstract
Solid core drug delivery systems (SCDDS) were prepared for the oral delivery of biomolecules using mesoporous silica as core, bovine haemoglobin (bHb) as model drug and supercritical fluid (SCF) processing as encapsulation technique. The use of organic solvents or harsh processing conditions in the development of drug delivery systems for biomolecules can be detrimental for the structural integrity of the molecule. Hence, the coating on protein-immobilised particles was performed via supercritical carbon dioxide (scCO2) processing at a temperature lower than the melting point of myristic acid (MA) to avoid any thermal degradation of bHb. The SCDDS were prepared by bHb immobilisation on mesoporous silica followed by myristic acid (MA) coating at 43 °C and 100 bar in scCO2. bHb-immobilised silica particles were also coated via solvent evaporation (SE) to compare the protein release with scCO2 processed formulations. In both cases, MA coating provided required enteric protection and restricted the bHb release for the first two hours in simulated gastric fluid (SGF). The protein release was immediate upon the change of media to simulated intestinal fluid (SIF), reaching 70% within three hours. The release from SCF processed samples was slower than SE formulations, indicating superior surface coverage of MA on particles in comparison to the SE method. Most importantly, the protein conformation remained unchanged after the release from SCDDS as confirmed by circular dichroism. This study clearly demonstrates that the approach involving protein immobilisation on silica and scCO2 assisted melt-coating method can protect biomolecules from gastric environment and provide the required release of a biologic in intestine without any untoward effects on protein conformation during processing or after release.
Collapse
|
11
|
Wahid AA, Doekhie A, Sartbaeva A, van den Elsen JMH. Ensilication Improves the Thermal Stability of the Tuberculosis Antigen Ag85b and an Sbi-Ag85b Vaccine Conjugate. Sci Rep 2019; 9:11409. [PMID: 31391509 PMCID: PMC6685958 DOI: 10.1038/s41598-019-47657-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2019] [Accepted: 07/16/2019] [Indexed: 02/03/2023] Open
Abstract
There is an urgent need for the development of vaccine thermostabilisation methodologies as the maintenance of a continuous and reliable cold chain remains a major hurdle to the global distribution of safe and effective vaccines. Ensilication, a method that encases proteins in a resistant silica cage has been shown to physically prevent the thermal denaturation of a number of model proteins. In this study we investigate the utility of this promising approach in improving the thermal stability of antigens and vaccine conjugates highly relevant to the development of candidate tuberculosis vaccines, including antigen 85b conjugated with the Staphylococcus aureus-protein based adjuvant Sbi. Here we analyse the sensitivity of these constructs to thermal denaturation and demonstrate for the first time the benefits of ensilication in conferring these vaccine-relevant proteins with protection against temperature-induced loss of structure and function without the need for refrigeration. Our results reveal the potential of ensilication in facilitating the storage and transport of vaccines at ambient temperatures in the future and therefore in delivering life-saving vaccines globally, and in particular to remote areas of developing countries where disease rates are often highest.
Collapse
Affiliation(s)
- A A Wahid
- Department of Biology and Biochemistry, University of Bath, Bath, UK
| | - A Doekhie
- Department of Chemistry, University of Bath, Bath, UK
| | - A Sartbaeva
- Department of Chemistry, University of Bath, Bath, UK.
| | | |
Collapse
|
12
|
Study on the immobilization of hemoglobin by nano mesoporous MCFs and its optical properties. ADSORPTION 2019. [DOI: 10.1007/s10450-019-00139-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
13
|
Rao J, Zhang R, Liang H, Gao XD, Nakanishi H, Xu Y. Efficient chiral synthesis by Saccharomyces cerevisiae spore encapsulation of Candida parapsilosis Glu228Ser/(S)-carbonyl reductase II and Bacillus sp. YX-1 glucose dehydrogenase in organic solvents. Microb Cell Fact 2019; 18:87. [PMID: 31109314 PMCID: PMC6526602 DOI: 10.1186/s12934-019-1137-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Accepted: 05/08/2019] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Saccharomyces cerevisiae AN120 osw2∆ spores were used as a host with good resistance to unfavorable environment. This work was undertaken to develop a new yeast spore-encapsulation of Candida parapsilosis Glu228Ser/(S)-carbonyl reductase II and Bacillus sp. YX-1 glucose dehydrogenase for efficient chiral synthesis in organic solvents. RESULTS The spore microencapsulation of E228S/SCR II and GDH in S. cerevisiae AN120 osw2∆ catalyzed (R)-phenylethanol in a good yield with an excellent enantioselectivity (up to 99%) within 4 h. It presented good resistance and catalytic functions under extreme temperature and pH conditions. The encapsulation produced several chiral products with over 70% yield and over 99% enantioselectivity in ethyl acetate after being recycled for 4-6 times. It increased substrate concentration over threefold and reduced the reaction time two to threefolds compared to the recombinant Escherichia coli containing E228S and glucose dehydrogenase. CONCLUSIONS This work first described sustainable enantioselective synthesis without exogenous cofactors in organic solvents using yeast spore-microencapsulation of coupled alcohol dehydrogenases.
Collapse
Affiliation(s)
- Jingxin Rao
- College of Science of China Pharmaceutical University, Nanjing, 211198, People's Republic of China
| | - Rongzhen Zhang
- Key Laboratory of Industrial Biotechnology of Ministry of Education & School of Biotechnology, Jiangnan University, Wuxi, 214122, People's Republic of China.,School of Biotechnology, Jiangnan University, 1800 Lihu Avenue, Wuxi, 214122, People's Republic of China
| | - Hongbo Liang
- Key Laboratory of Industrial Biotechnology of Ministry of Education & School of Biotechnology, Jiangnan University, Wuxi, 214122, People's Republic of China
| | - Xiao-Dong Gao
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, China
| | - Hideki Nakanishi
- Key Laboratory of Carbohydrate Chemistry and Biotechnology, Ministry of Education, School of Biotechnology, Jiangnan University, Wuxi, China
| | - Yan Xu
- Key Laboratory of Industrial Biotechnology of Ministry of Education & School of Biotechnology, Jiangnan University, Wuxi, 214122, People's Republic of China.
| |
Collapse
|
14
|
Eguílaz M, Villalonga R, Rivas G. Electrochemical biointerfaces based on carbon nanotubes-mesoporous silica hybrid material: Bioelectrocatalysis of hemoglobin and biosensing applications. Biosens Bioelectron 2018; 111:144-151. [DOI: 10.1016/j.bios.2018.04.004] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2018] [Revised: 03/29/2018] [Accepted: 04/03/2018] [Indexed: 01/06/2023]
|
15
|
Sigurdardóttir SB, Lehmann J, Ovtar S, Grivel J, Negra MD, Kaiser A, Pinelo M. Enzyme Immobilization on Inorganic Surfaces for Membrane Reactor Applications: Mass Transfer Challenges, Enzyme Leakage and Reuse of Materials. Adv Synth Catal 2018. [DOI: 10.1002/adsc.201800307] [Citation(s) in RCA: 85] [Impact Index Per Article: 14.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023]
Affiliation(s)
- Sigyn Björk Sigurdardóttir
- Technical University of DenmarkDTU Chemical Engineering Søltofts Plads, Building 229 2800 Kgs. Lyngby Denmark
| | - Jonas Lehmann
- Technical University of DenmarkDTU Energy Frederiksborgvej 399 4000 Roskilde Denmark
| | - Simona Ovtar
- Technical University of DenmarkDTU Energy Frederiksborgvej 399 4000 Roskilde Denmark
| | - Jean‐Claude Grivel
- Technical University of DenmarkDTU Energy Frederiksborgvej 399 4000 Roskilde Denmark
| | - Michela Della Negra
- Technical University of DenmarkDTU Energy Frederiksborgvej 399 4000 Roskilde Denmark
| | - Andreas Kaiser
- Technical University of DenmarkDTU Energy Frederiksborgvej 399 4000 Roskilde Denmark
| | - Manuel Pinelo
- Technical University of DenmarkDTU Chemical Engineering Søltofts Plads, Building 229 2800 Kgs. Lyngby Denmark
| |
Collapse
|
16
|
Tu J, Bussmann J, Du G, Gao Y, Bouwstra JA, Kros A. Lipid bilayer-coated mesoporous silica nanoparticles carrying bovine hemoglobin towards an erythrocyte mimic. Int J Pharm 2018; 543:169-178. [DOI: 10.1016/j.ijpharm.2018.03.037] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2017] [Revised: 03/14/2018] [Accepted: 03/18/2018] [Indexed: 12/25/2022]
|
17
|
Yang J, Tu J, Lamers GEM, Olsthoorn RCL, Kros A. Membrane Fusion Mediated Intracellular Delivery of Lipid Bilayer Coated Mesoporous Silica Nanoparticles. Adv Healthc Mater 2017; 6. [PMID: 28945015 DOI: 10.1002/adhm.201700759] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Revised: 08/10/2017] [Indexed: 01/07/2023]
Abstract
Protein delivery into the cytosol of cells is a challenging topic in the field of nanomedicine, because cellular uptake and endosomal escape are typically inefficient, hampering clinical applications. In this contribution cuboidal mesoporous silica nanoparticles (MSNs) containing disk-shaped cavities with a large pore diameter (10 nm) are studied as a protein delivery vehicle using cytochrome-c (cytC) as a model membrane-impermeable protein. To ensure colloidal stability, the MSNs are coated with a fusogenic lipid bilayer (LB) and cellular uptake is induced by a complementary pair of coiled-coil (CC) lipopeptides. Coiled-coil induced membrane fusion leads to the efficient cytosolic delivery of cytC and triggers apoptosis of cells. Delivery of these LB coated MSNs in the presence of various endocytosis inhibitors strongly suggests that membrane fusion is the dominant mechanism of cellular uptake. This method is potentially a universal way for the efficient delivery of any type of inorganic nanoparticle or protein into cells mediated by CC induced membrane fusion.
Collapse
Affiliation(s)
- Jian Yang
- Department of Supramolecular & Biomaterials Chemistry; Leiden Institute of Chemistry; Leiden University; Einsteinweg 55 Leiden 2300 RA The Netherlands
| | - Jing Tu
- Department of Supramolecular & Biomaterials Chemistry; Leiden Institute of Chemistry; Leiden University; Einsteinweg 55 Leiden 2300 RA The Netherlands
| | - Gerda E. M. Lamers
- Institute of Biology; Leiden University; Sylviusweg 72 Leiden 2333 BE The Netherlands
| | - René C. L. Olsthoorn
- Department of Supramolecular & Biomaterials Chemistry; Leiden Institute of Chemistry; Leiden University; Einsteinweg 55 Leiden 2300 RA The Netherlands
| | - Alexander Kros
- Department of Supramolecular & Biomaterials Chemistry; Leiden Institute of Chemistry; Leiden University; Einsteinweg 55 Leiden 2300 RA The Netherlands
| |
Collapse
|
18
|
Chang KJ, Kuo YH, Chiang YW. Study of Protein Dynamics under Nanoconfinement by Spin-Label ESR: A Case of T4 Lysozyme Protein. J Phys Chem B 2017; 121:4355-4363. [DOI: 10.1021/acs.jpcb.7b00014] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- Kuo-Jung Chang
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Yun-Hsuan Kuo
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan
| | - Yun-Wei Chiang
- Department of Chemistry, National Tsing Hua University, Hsinchu 30013, Taiwan
| |
Collapse
|
19
|
Chen YC, Smith T, Hicks RH, Doekhie A, Koumanov F, Wells SA, Edler KJ, van den Elsen J, Holman GD, Marchbank KJ, Sartbaeva A. Thermal stability, storage and release of proteins with tailored fit in silica. Sci Rep 2017; 7:46568. [PMID: 28436442 PMCID: PMC5402271 DOI: 10.1038/srep46568] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2016] [Accepted: 03/17/2017] [Indexed: 11/09/2022] Open
Abstract
Biological substances based on proteins, including vaccines, antibodies, and enzymes, typically degrade at room temperature over time due to denaturation, as proteins unfold with loss of secondary and tertiary structure. Their storage and distribution therefore relies on a "cold chain" of continuous refrigeration; this is costly and not always effective, as any break in the chain leads to rapid loss of effectiveness and potency. Efforts have been made to make vaccines thermally stable using treatments including freeze-drying (lyophilisation), biomineralisation, and encapsulation in sugar glass and organic polymers. Here for the first time we show that proteins can be enclosed in a deposited silica "cage", rendering them stable against denaturing thermal treatment and long-term ambient-temperature storage, and subsequently released into solution with their structure and function intact. This "ensilication" method produces a storable solid protein-loaded material without the need for desiccation or freeze-drying. Ensilication offers the prospect of a solution to the "cold chain" problem for biological materials, in particular for vaccines.
Collapse
Affiliation(s)
- Yun-Chu Chen
- Department of Chemistry, Claverton Down, Bath, BA2 7AY, UK
| | - Tristan Smith
- Centre for Sustainable Chemical Technologies, Department of Biology and Biochemistry, Claverton Down, Bath, BA2 7AY, UK
| | - Robert H. Hicks
- Centre for Sustainable Chemical Technologies, Department of Biology and Biochemistry, Claverton Down, Bath, BA2 7AY, UK
| | - Aswin Doekhie
- Department of Chemistry, Claverton Down, Bath, BA2 7AY, UK
| | - Francoise Koumanov
- Department of Biology and Biochemistry, Claverton Down, Bath, BA2 7AY, UK
| | - Stephen A. Wells
- Department of Chemical Engineering, University of Bath, Bath, BA2 7AY, UK
| | - Karen J. Edler
- Department of Chemistry, Claverton Down, Bath, BA2 7AY, UK
| | - Jean van den Elsen
- Department of Biology and Biochemistry, Claverton Down, Bath, BA2 7AY, UK
| | - Geoffrey D. Holman
- Department of Biology and Biochemistry, Claverton Down, Bath, BA2 7AY, UK
| | | | - Asel Sartbaeva
- Department of Chemistry, Claverton Down, Bath, BA2 7AY, UK
| |
Collapse
|
20
|
Tu J, Boyle AL, Friedrich H, Bomans PHH, Bussmann J, Sommerdijk NAJM, Jiskoot W, Kros A. Mesoporous Silica Nanoparticles with Large Pores for the Encapsulation and Release of Proteins. ACS APPLIED MATERIALS & INTERFACES 2016; 8:32211-32219. [PMID: 27933855 DOI: 10.1021/acsami.6b11324] [Citation(s) in RCA: 82] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Mesoporous silica nanoparticles (MSNs) have been explored extensively as solid supports for proteins in biological and medical applications. Small (<200 nm) MSNs with ordered large pores (>5 nm), capable of encapsulating therapeutic small molecules suitable for delivery applications in vivo, are rare however. Here we present small, elongated, cuboidal, MSNs with average dimensions of 90 × 43 nm that possess disk-shaped cavities, stacked on top of each other, which run parallel to the short axis of the particle. Amine functionalization was achieved by modifying the MSN surface with 3-aminopropyltriethoxysilane or 3-[2-(2-aminoethylamino)ethylamino]propyltrimethoxysilane (AP-MSNs and AEP-MSNs) and were shown to have similar dimensions to the nonfunctionalized MSNs. The dimensions of these particles, and their large surface areas as measured by nitrogen adsorption-desorption isotherms, make them ideal scaffolds for protein encapsulation and delivery. We therefore investigated the encapsulation and release behavior for seven model proteins (α-lactalbumin, ovalbumin, bovine serum albumin, catalase, hemoglobin, lysozyme, and cytochrome c). It was discovered that all types of MSNs used in this study allow rapid encapsulation, with a high loading capacity, for all proteins studied. Furthermore, the release profiles of the proteins were tunable. The variation in both rate and amount of protein uptake and release was found to be determined by the surface chemistry of the MSNs, together with the isoelectric point (pI), and molecular weight of the proteins, as well as by the ionic strength of the buffer. These MSNs with their large surface area and optimal dimensions provide a scaffold with a high encapsulation efficiency and controllable release profiles for a variety of proteins, enabling potential applications in fields such as drug delivery and protein therapy.
Collapse
Affiliation(s)
| | | | - Heiner Friedrich
- Laboratory of Materials and Interface Chemistry & Center of Multiscale Electron Microscopy, Department of Chemical engineering and Chemistry, and Institute for Complex Molecular Systems, Eindhoven University of Technology , P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | - Paul H H Bomans
- Laboratory of Materials and Interface Chemistry & Center of Multiscale Electron Microscopy, Department of Chemical engineering and Chemistry, and Institute for Complex Molecular Systems, Eindhoven University of Technology , P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | | | - Nico A J M Sommerdijk
- Laboratory of Materials and Interface Chemistry & Center of Multiscale Electron Microscopy, Department of Chemical engineering and Chemistry, and Institute for Complex Molecular Systems, Eindhoven University of Technology , P.O. Box 513, 5600 MB Eindhoven, The Netherlands
| | | | | |
Collapse
|
21
|
Ravera E, Martelli T, Geiger Y, Fragai M, Goobes G, Luchinat C. Biosilica and bioinspired silica studied by solid-state NMR. Coord Chem Rev 2016. [DOI: 10.1016/j.ccr.2016.06.003] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
|
22
|
Gilani SL, Najafpour GD, Moghadamnia A, Kamaruddin AH. Stability of immobilized porcine pancreas lipase on mesoporous chitosan beads: A comparative study. ACTA ACUST UNITED AC 2016. [DOI: 10.1016/j.molcatb.2016.08.005] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
|
23
|
Bolivar JM, Eisl I, Nidetzky B. Advanced characterization of immobilized enzymes as heterogeneous biocatalysts. Catal Today 2016. [DOI: 10.1016/j.cattod.2015.05.004] [Citation(s) in RCA: 129] [Impact Index Per Article: 16.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
|
24
|
Gagnon J, Clift MJD, Vanhecke D, Kuhn DA, Weber P, Petri-Fink A, Rothen-Rutishauser B, Fromm KM. Integrating silver compounds and nanoparticles into ceria nanocontainers for antimicrobial applications. J Mater Chem B 2015; 3:1760-1768. [DOI: 10.1039/c4tb02079k] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Silver compounds and nanoparticles (NPs) are gaining increasing interest in medical applications, specifically in the treatment and prevention of biomaterial-related infections.
Collapse
Affiliation(s)
- J. Gagnon
- Department of Chemistry and Fribourg Center for Nanomaterials
- University of Fribourg
- 1700 Fribourg
- Switzerland
| | - M. J. D. Clift
- Adolphe Merkle Institute and Fribourg Center for Nanomaterials
- University of Fribourg
- Route de l'Ancienne Papeterie
- 1723 Marly
- Switzerland
| | - D. Vanhecke
- Adolphe Merkle Institute and Fribourg Center for Nanomaterials
- University of Fribourg
- Route de l'Ancienne Papeterie
- 1723 Marly
- Switzerland
| | - D. A. Kuhn
- Adolphe Merkle Institute and Fribourg Center for Nanomaterials
- University of Fribourg
- Route de l'Ancienne Papeterie
- 1723 Marly
- Switzerland
| | - P. Weber
- Department of Chemistry and Fribourg Center for Nanomaterials
- University of Fribourg
- 1700 Fribourg
- Switzerland
| | - A. Petri-Fink
- Adolphe Merkle Institute and Fribourg Center for Nanomaterials
- University of Fribourg
- Route de l'Ancienne Papeterie
- 1723 Marly
- Switzerland
| | - B. Rothen-Rutishauser
- Adolphe Merkle Institute and Fribourg Center for Nanomaterials
- University of Fribourg
- Route de l'Ancienne Papeterie
- 1723 Marly
- Switzerland
| | - K. M. Fromm
- Department of Chemistry and Fribourg Center for Nanomaterials
- University of Fribourg
- 1700 Fribourg
- Switzerland
| |
Collapse
|
25
|
Maina JW, Cui J, Björnmalm M, Wise AK, Shepherd RK, Caruso F. Mold-templated inorganic-organic hybrid supraparticles for codelivery of drugs. Biomacromolecules 2014; 15:4146-51. [PMID: 25321318 DOI: 10.1021/bm501171j] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
This paper reports a facile and robust mold-templated technique for the assembly of mesoporous silica (MS) supraparticles and demonstrates their potential as vehicles for codelivery of brain-derived neurotrophic factor (BDNF) and dexamethasone (DEX). The MS supraparticles are assembled using gelatin as a biodegradable adhesive to bind and cross-link the particles. Microfabricated molds made of polydimethylsiloxane are used to control the size and shape of the supraparticles. The obtained mesoporous silica-gelatin hybrid supraparticles (MSG-SPs) are stable in water as well as in organic solvents, such as dimethyl sulfoxide, and efficiently coencapsulate both BDNF and DEX. The MSG-SPs also exhibit sustained release kinetics in simulated physiological conditions (>30 days), making them potential candidates for long-term delivery of therapeutics to the inner ear.
Collapse
Affiliation(s)
- James W Maina
- ARC Centre of Excellence in Convergent Bio-Nano Science and Technology, ‡Department of Chemical and Biomolecular Engineering, §Department of Otolaryngology, and ∥Department of Medical Bionics, The University of Melbourne , Parkville, Victoria 3010, Australia
| | | | | | | | | | | |
Collapse
|
26
|
Carlsson N, Gustafsson H, Thörn C, Olsson L, Holmberg K, Åkerman B. Enzymes immobilized in mesoporous silica: a physical-chemical perspective. Adv Colloid Interface Sci 2014; 205:339-60. [PMID: 24112562 DOI: 10.1016/j.cis.2013.08.010] [Citation(s) in RCA: 141] [Impact Index Per Article: 14.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2013] [Revised: 08/27/2013] [Accepted: 08/28/2013] [Indexed: 01/13/2023]
Abstract
Mesoporous materials as support for immobilized enzymes have been explored extensively during the last two decades, primarily not only for biocatalysis applications, but also for biosensing, biofuels and enzyme-controlled drug delivery. The activity of the immobilized enzymes inside the pores is often different compared to that of the free enzymes, and an important challenge is to understand how the immobilization affects the enzymes in order to design immobilization conditions that lead to optimal enzyme activity. This review summarizes methods that can be used to understand how material properties can be linked to changes in enzyme activity. Real-time monitoring of the immobilization process and techniques that demonstrate that the enzymes are located inside the pores is discussed by contrasting them to the common practice of indirectly measuring the depletion of the protein concentration or enzyme activity in the surrounding bulk phase. We propose that pore filling (pore volume fraction occupied by proteins) is the best standard for comparing the amount of immobilized enzymes at the molecular level, and present equations to calculate pore filling from the more commonly reported immobilized mass. Methods to detect changes in enzyme structure upon immobilization and to study the microenvironment inside the pores are discussed in detail. Combining the knowledge generated from these methodologies should aid in rationally designing biocatalyst based on enzymes immobilized in mesoporous materials.
Collapse
Affiliation(s)
- Nils Carlsson
- Chalmers University of Technology, Department of Chemical and Biological Engineering, Physical Chemistry, 412 96 Gothenburg, Sweden
| | - Hanna Gustafsson
- Chalmers University of Technology, Department of Chemical and Biological Engineering, Applied Surface Chemistry, 412 96 Gothenburg, Sweden
| | - Christian Thörn
- Chalmers University of Technology, Department of Chemical and Biological Engineering, Industrial Biotechnology, 412 96 Gothenburg, Sweden
| | - Lisbeth Olsson
- Chalmers University of Technology, Department of Chemical and Biological Engineering, Industrial Biotechnology, 412 96 Gothenburg, Sweden
| | - Krister Holmberg
- Chalmers University of Technology, Department of Chemical and Biological Engineering, Applied Surface Chemistry, 412 96 Gothenburg, Sweden.
| | - Björn Åkerman
- Chalmers University of Technology, Department of Chemical and Biological Engineering, Physical Chemistry, 412 96 Gothenburg, Sweden
| |
Collapse
|
27
|
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: 270] [Impact Index Per Article: 27.0] [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
|
28
|
Cha C, Oh J, Kim K, Qiu Y, Joh M, Shin SR, Wang X, Camci-Unal G, Wan KT, Liao R, Khademhosseini A. Microfluidics-assisted fabrication of gelatin-silica core-shell microgels for injectable tissue constructs. Biomacromolecules 2014; 15:283-90. [PMID: 24344625 PMCID: PMC3922064 DOI: 10.1021/bm401533y] [Citation(s) in RCA: 104] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
![]()
Microfabrication
technology provides a highly versatile platform for engineering hydrogels
used in biomedical applications with high-resolution control and injectability.
Herein, we present a strategy of microfluidics-assisted fabrication
photo-cross-linkable gelatin microgels, coupled with providing protective
silica hydrogel layer on the microgel surface to ultimately generate
gelatin-silica core–shell microgels for applications as in
vitro cell culture platform and injectable tissue constructs. A microfluidic
device having flow-focusing channel geometry was utilized to generate
droplets containing methacrylated gelatin (GelMA), followed by a photo-cross-linking
step to synthesize GelMA microgels. The size of the microgels could
easily be controlled by varying the ratio of flow rates of aqueous
and oil phases. Then, the GelMA microgels were used as in vitro cell
culture platform to grow cardiac side population cells on the microgel
surface. The cells readily adhered on the microgel surface and proliferated
over time while maintaining high viability (∼90%). The cells
on the microgels were also able to migrate to their surrounding area.
In addition, the microgels eventually degraded over time. These results
demonstrate that cell-seeded GelMA microgels have a great potential
as injectable tissue constructs. Furthermore, we demonstrated that
coating the cells on GelMA microgels with biocompatible and biodegradable
silica hydrogels via sol–gel method provided significant protection
against oxidative stress which is often encountered during and after
injection into host tissues, and detrimental to the cells. Overall,
the microfluidic approach to generate cell-adhesive microgel core,
coupled with silica hydrogels as a protective shell, will be highly
useful as a cell culture platform to generate a wide range of injectable
tissue constructs.
Collapse
Affiliation(s)
- Chaenyung Cha
- Harvard-MIT Division of Health Sciences and Technology, Division of Biomedical Engineering, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School , Cambridge, Massachusetts 02139, United States
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|
29
|
Matsuura SI, Baba T, Chiba M, Tsunoda T. Nanoporous scaffold for DNA polymerase: pore-size optimisation of mesoporous silica for DNA amplification. RSC Adv 2014. [DOI: 10.1039/c4ra02725f] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
The simple and selective immobilisation of a thermostable DNA polymerase on mesoporous silicas was achieved, and DNA amplification activity was retained under the pore-size regulation of the mesoporous silicas.
Collapse
Affiliation(s)
- Shun-ichi Matsuura
- Research Center for Compact Chemical System
- National Institute of Advanced Industrial Science and Technology (AIST)
- Sendai, Japan
| | - Tomoya Baba
- Transdisciplinary Research Integration Center
- Research Organization of Information and Systems (ROIS)
- National Institute of Genetics
- Mishima, Japan
| | - Manami Chiba
- Research Center for Compact Chemical System
- National Institute of Advanced Industrial Science and Technology (AIST)
- Sendai, Japan
| | - Tatsuo Tsunoda
- Research Center for Compact Chemical System
- National Institute of Advanced Industrial Science and Technology (AIST)
- Sendai, Japan
| |
Collapse
|
30
|
Ikemoto H, Mossin SL, Ulstrup J, Chi Q. Probing structural and catalytic characteristics of galactose oxidase confined in nanoscale chemical environments. RSC Adv 2014. [DOI: 10.1039/c4ra00653d] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
Synopsis: structural and catalytic features of a complex enzyme galactose oxidase confined in nanoscale chemical environments were investigated to show the catalytic efficiency of the enzyme depending on both the degree of space confinement and immobilization method.
Collapse
Affiliation(s)
- Hideki Ikemoto
- Department of Chemistry
- Technical University of Denmark
- DK-2800 Kongens Lyngby, Denmark
| | - Susanne L. Mossin
- Department of Chemistry
- Technical University of Denmark
- DK-2800 Kongens Lyngby, Denmark
| | - Jens Ulstrup
- Department of Chemistry
- Technical University of Denmark
- DK-2800 Kongens Lyngby, Denmark
| | - Qijin Chi
- Department of Chemistry
- Technical University of Denmark
- DK-2800 Kongens Lyngby, Denmark
| |
Collapse
|
31
|
Matsuura SI, Chiba M, Tomon E, Tsunoda T. Synthesis of amino acid using a flow-type microreactor containing enzyme–mesoporous silica microsphere composites. RSC Adv 2014. [DOI: 10.1039/c3ra45315d] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A flow-type microreactor containing composites of the enzyme (glutaminase) and mesoporous silica microspheres with a 23.6 nm pore diameter (SBA23.6) exhibited precise, efficient, and continuous synthesis of theanine.
Collapse
Affiliation(s)
- Shun-ichi Matsuura
- Research Center for Compact Chemical System
- National Institute of Advanced Industrial Science and Technology (AIST)
- Sendai 983-8551, Japan
| | - Manami Chiba
- Research Center for Compact Chemical System
- National Institute of Advanced Industrial Science and Technology (AIST)
- Sendai 983-8551, Japan
| | - Emiko Tomon
- Research Center for Compact Chemical System
- National Institute of Advanced Industrial Science and Technology (AIST)
- Sendai 983-8551, Japan
| | - Tatsuo Tsunoda
- Research Center for Compact Chemical System
- National Institute of Advanced Industrial Science and Technology (AIST)
- Sendai 983-8551, Japan
| |
Collapse
|
32
|
Cao X, Li Y, Zhang Z, Yu J, Qian J, Liu S. Catalytic activity and stability of glucose oxidase/horseradish peroxidase co-confined in macroporous silica foam. Analyst 2013; 137:5785-91. [PMID: 23096254 DOI: 10.1039/c2an36237f] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Investigation of the catalytic activity and stability of enzymes in confined nano/microspace provides valuable contributions to the fundamental understanding of biological reactions taking place on a mesoscopic scale within confined spaces. In this paper, macroporous silica foam (MSF) is used as a nanoreactor to co-confine glucose oxidase (GOD) and horseradish peroxidase (HRP). Then, the enzymatic cascade reactions, which act in tandem inside nanoreactors, for oxidation of glucose and 3,3',5,5'-tetramethylbenzidine (TMB) were studied. The catalytic kinetic parameters of apparent Michaelis constant (K(m)(app)) and maximum rate (V(max)) were obtained from Lineweaver-Burk plot by UV-vis spectrometry. Results showed that the catalytic activity of the co-confined enzymes is reduced compared to that of free enzymes in solution at room temperature. The stabilities of co-confined enzymes in denaturing agents, such as guanidinium chloride (GdmCl) and urea, were higher than those of free enzymes in solution. When employing a co-confined bienzyme system as a biosensor for the detection of glucose, a wider linear range of glucose was obtained for the co-confined bienzyme system than for free enzymes in solution.
Collapse
Affiliation(s)
- Xiaodong Cao
- School of Chemistry and Chemical Engineering, Southeast University Jiangning, Nanjing 211189, People's Republic of China
| | | | | | | | | | | |
Collapse
|
33
|
Chen B, Qi W, Li X, Lei C, Liu J. Heated proteins are still active in a functionalized nanoporous support. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2013; 9:2228-2232. [PMID: 23401249 DOI: 10.1002/smll.201202409] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2012] [Revised: 11/27/2012] [Indexed: 06/01/2023]
Abstract
Even under heated conditions, the nearly native conformation and activity of a protein can be hoarded in a functionalized nanoporous support via non-covalent interaction. Surprisingly, the protein released from the heated protein-nanoporous composite can maintain its nearly native conformation and activity, while free proteins are permanently denatured under the same treatment.
Collapse
Affiliation(s)
- Baowei Chen
- Pacific Northwest National Laboratory, PO Box 999, Richland, WA 99352, USA
| | | | | | | | | |
Collapse
|
34
|
Kuwahara Y, Yamanishi T, Kamegawa T, Mori K, Yamashita H. Activity, Recyclability, and Stability of Lipases Immobilized on Oil-Filled Spherical Silica Nanoparticles with Different Silica Shell Structures. ChemCatChem 2013. [DOI: 10.1002/cctc.201300072] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
35
|
Arafune H, Yamaguchi A, Hotta K, Itoh T, Teramae N. Encapsulation of PEG-modified myoglobin in hydrophobic mesoporous silica as studied by optical waveguide spectroscopy. ANAL SCI 2013; 29:187-92. [PMID: 23400283 DOI: 10.2116/analsci.29.187] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The purpose of this study is to apply optical waveguide (OWG) spectroscopy to characterize the encapsulation behavior of enzymes modified with polyethylene glycol (PEG), i.e. pegylation, in a hydrophobic mesoporous silica film. For that purpose, pegylated myoglobin (PEG-Mb) was introduced into the silica mesopores modified with octadecylsilyl (ODS) groups and studied by OWG spectroscopy. OWG spectroscopy confirmed that the hydrophobic interaction between the PEG group and the surface ODS group promoted the encapsulation of PEG-Mb into the hydrophobic silica mesopores. The surface density of ODS affected the adsorbed amount of PEG-Mb and the higher surface density of the ODS group resulted in the suppression of adsorption and diffusion of PEG-Mb inside the pore. Since the desorption rate of PEG-Mb was found to be much slower than the adsorption rate, the pegylation of an enzyme could be effective for the enzyme encapsulation into the hydrophobic mesoporous silica host.
Collapse
Affiliation(s)
- Hiroyuki Arafune
- Department of Chemistry, Graduate School of Science, Tohoku University, Sendai, Japan
| | | | | | | | | |
Collapse
|
36
|
Hasanzadeh M, Shadjou N, Eskandani M, Guardia MDL. Mesoporous silica-based materials for use in electrochemical enzyme nanobiosensors. Trends Analyt Chem 2012. [DOI: 10.1016/j.trac.2012.06.007] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
|
37
|
Chen K, Merkel TJ, Pandya A, Napier ME, Luft JC, Daniel W, Sheiko S, DeSimone JM. Low modulus biomimetic microgel particles with high loading of hemoglobin. Biomacromolecules 2012; 13:2748-59. [PMID: 22852860 DOI: 10.1021/bm3007242] [Citation(s) in RCA: 62] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
Abstract
We synthesized extremely deformable red blood cell-like microgel particles and loaded them with bovine hemoglobin (Hb) to potentiate oxygen transport. With similar shape and size as red blood cells (RBCs), the particles were fabricated using the PRINT (particle replication in nonwetting templates) technique. Low cross-linking of the hydrogel resulted in very low mesh density for these particles, allowing passive diffusion of hemoglobin throughout the particles. Hb was secured in the particles through covalent conjugation of the lysine groups of Hb to carboxyl groups in the particles via EDC/NHS coupling. Confocal microscopy of particles bound to fluorescent dye-labeled Hb confirmed the uniform distribution of Hb throughout the particle interior, as opposed to the surface conjugation only. High loading ratios, up to 5 times the amount of Hb to polymer by weight, were obtained without a significant effect on particle stability and shape, though particle diameter decreased slightly with Hb conjugation. Analysis of the protein by circular dichroism (CD) spectroscopy showed that the secondary structure of Hb was unperturbed by conjugation to the particles. Methemoglobin in the particles could be maintained at a low level and the loaded Hb could still bind oxygen, as studied by UV-vis spectroscopy. Hb-loaded particles with moderate loading ratios demonstrated excellent deformability in microfluidic devices, easily deforming to pass through restricted pores half as wide as the diameter of the particles. The suspension of concentrated particles with a Hb concentration of 5.2 g/dL showed comparable viscosity to that of mouse blood, and the particles remained intact even after being sheared at a constant high rate (1000 1/s) for 10 min. Armed with the ability to control size, shape, deformability, and loading of Hb into RBC mimics, we will discuss the implications for artificial blood.
Collapse
Affiliation(s)
- Kai Chen
- Department of Chemistry, University of North Carolina, Chapel Hill, North Carolina 27599, USA
| | | | | | | | | | | | | | | |
Collapse
|
38
|
Matsuura SI, Yokoyama T, Ishii R, Itoh T, Tomon E, Hamakawa S, Tsunoda T, Mizukami F, Nanbu H, Hanaoka TA. An enzyme-encapsulated microreactor for efficient theanine synthesis. Chem Commun (Camb) 2012; 48:7058-60. [PMID: 22674037 DOI: 10.1039/c2cc32271d] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A flow-type microreactor containing glutaminase-mesoporous silica composites with 10.6 nm pore diameter (TMPS10.6) was developed for the continuous synthesis of theanine, a unique amino acid. High enzymatic activity was exhibited by the local control of the reaction temperature.
Collapse
Affiliation(s)
- Shun-ichi Matsuura
- Research Center for Compact Chemical System, National Institute of Advanced Industrial Science and Technology (AIST), 4-2-1 Nigatake, Sendai 983-8551, Japan.
| | | | | | | | | | | | | | | | | | | |
Collapse
|
39
|
Falahati M, Saboury AA, Ma’mani L, Shafiee A, Rafieepour HA. The effect of functionalization of mesoporous silica nanoparticles on the interaction and stability of confined enzyme. Int J Biol Macromol 2012; 50:1048-54. [DOI: 10.1016/j.ijbiomac.2012.02.032] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2012] [Revised: 02/25/2012] [Accepted: 02/28/2012] [Indexed: 10/28/2022]
|
40
|
Atyaksheva LF, Dobryakova IV, Ivanova II, Knyazeva EE, Ovsyannikov RA, Chukhrai ES. Adsorption properties of hemoglobin. RUSSIAN JOURNAL OF PHYSICAL CHEMISTRY A 2012. [DOI: 10.1134/s0036024412030041] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
41
|
Nagai N, Suzuki YH, Sekikawa C, Nara TY, Hakuta Y, Tsunoda T, Mizukami F. Fabrication of boehmite films with cage-like pores and their properties as enzyme immobilization supports. ACTA ACUST UNITED AC 2012. [DOI: 10.1039/c2jm15704g] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
42
|
Thörn C, Gustafsson H, Olsson L. Immobilization of feruloyl esterases in mesoporous materials leads to improved transesterification yield. ACTA ACUST UNITED AC 2011. [DOI: 10.1016/j.molcatb.2011.05.002] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
43
|
Huang YW, Chiang YW. Spin-label ESR with nanochannels to improve the study of backbone dynamics and structural conformations of polypeptides. Phys Chem Chem Phys 2011; 13:17521-31. [PMID: 21892486 DOI: 10.1039/c1cp20986h] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Nanochannels of mesoporous silica materials were previously found useful for reducing the tumbling motion of encapsulated biomolecules while leaving the biomolecular structure undisturbed. Here we show that experiments of cw-ESR distance measurement in nano-confinement can benefit immediately from the above mentioned features of sufficiently slow molecular tumbling, enabling more accurate determination of interspin distances throughout the temperature range, from 200 to 300 K. A 26-residue prion protein peptide, which can fold into either a helical or hairpin structure, as well as its variants, are studied by using ESR. By comparing the spectra obtained in vitrified bulk solutions vs. mesopores, the spectra from the latter display typical slow-motional lineshapes, thereby enabling dipolar anisotropy to be unambiguously revealed throughout the temperature range, whereas the spectra from the former are dominated by the disordering of the side chain and the rotational tumbling of the peptide. The spectral changes regarding the two secondary structures in nano-confinement are found to show a strong correlation with the dynamic properties of the backbones. The effect of viscosity agent perturbation on the motion of an R1 nitroxide side chain, a commonly employed probe, could be substantial in a bulk solution condition, though it is absolutely absent in nanochannels. Under nano-confinement, the probe is proven sufficiently sensitive to the backbone motions. Overall, the distance distributions determined from the mesopore studies not only describe the conformational structures (by average distances), but also the backbone dynamics (by distribution widths) of the spin-labeled peptides.
Collapse
Affiliation(s)
- Ya-Wen Huang
- Department of Chemistry, National Tsing Hua University, Hsinchu, 30013, Taiwan
| | | |
Collapse
|
44
|
Mesopores provide an amorphous state suitable for studying biomolecular structures at cryogenic temperatures. Proc Natl Acad Sci U S A 2011; 108:14145-50. [PMID: 21844377 DOI: 10.1073/pnas.1102395108] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
In nano-confinements, aqueous solutions can be found to remain in a liquid state at subfreezing temperatures. The finding provides a means of entering into previously inaccessible temperature regions for studying the dynamics and structure of bulk liquid. Here we show that studying biomolecular structures in nano-confinements improves the accuracy of cryostructures and provides better insight into the relationship between hydration water and biomolecules. Synthetic prion protein peptides are studied in two experimental conditions: (i) in confined nanochannels within mesoporous materials, and (ii) in vitrified bulk solvents, with a temperature range of 50-275 K, using cw/pulse ESR techniques. A large inhomogeneous lineshape broadening is only observed for the spectra from the vitrified bulk solvent below 70 K, suggesting a possible peptide clustering in the solution. The spin-counting and distance measurements by DEER-ESR provide further evidence that peptides are dispersed homogeneously in mesopores but heterogeneously in vitrified solvents wherein the biomolecular structure is disturbed due to heterogeneity in the bulk solvent structure. Our study demonstrates that the nanospace within mesoporous materials provides an amorphous environment that is better than vitrified bulk solvent for studying biostructures at cryogenic temperatures.
Collapse
|
45
|
Yasutaka K, Takato Y, Takashi K, Kohsuke M, Hiromi Y. Enhancement in Adsorption and Catalytic Activity of Enzymes Immobilized on Phosphorus- and Calcium-Modified MCM-41. J Phys Chem B 2011; 115:10335-45. [DOI: 10.1021/jp203632g] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Affiliation(s)
- Kuwahara Yasutaka
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yamanishi Takato
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Kamegawa Takashi
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Mori Kohsuke
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| | - Yamashita Hiromi
- Division of Materials and Manufacturing Science, Graduate School of Engineering, Osaka University, 2-1 Yamadaoka, Suita, Osaka 565-0871, Japan
| |
Collapse
|
46
|
Savino R, Casadonte F, Terracciano R. In mesopore protein digestion: a new forthcoming strategy in proteomics. Molecules 2011; 16:5938-62. [PMID: 21765391 PMCID: PMC6264412 DOI: 10.3390/molecules16075938] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2011] [Revised: 07/07/2011] [Accepted: 07/13/2011] [Indexed: 01/11/2023] Open
Abstract
The conventional protocols for in solution or in gel protein digestion require many steps and long reaction times. The use of trypsin immobilized onto solid supports has recently captured the attention of many research groups, because these systems can speed-up protein digestion significantly. The utilization of new materials such as mesoporous silica as supports, in which enzyme and substrate are dramatically concentrated and confined in the nanospace, offers new opportunities to reduce the complexity of proteomics workflows. An overview of the procedures for in situ proteolysis of single proteins or complex protein mixtures is reported, with a special focus on porous materials used as catalysts. The challenging efforts for designing such systems aimed at mimicking the biochemistry of living cells are reviewed. Potentials, limitations and challenges of this branch of enzyme catalysis, which we indicate as in mesopore digestion, are discussed, in relation to its suitability for high-speed and high-throughput proteomics.
Collapse
Affiliation(s)
| | | | - Rosa Terracciano
- Author to whom correspondence should be addressed; ; Tel.: +39-0961-3694085; Fax: +39-0961-3694090
| |
Collapse
|
47
|
Sang LC, Coppens MO. Effects of surface curvature and surface chemistry on the structure and activity of proteins adsorbed in nanopores. Phys Chem Chem Phys 2011; 13:6689-98. [PMID: 21369603 DOI: 10.1039/c0cp02273j] [Citation(s) in RCA: 94] [Impact Index Per Article: 7.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The interactions of proteins with the surface of cylindrical nanopores are systematically investigated to elucidate how surface curvature and surface chemistry affect the conformation and activity of confined proteins in an aqueous, buffered environment. Two globular proteins, lysozyme and myoglobin, with different catalytic functions, were used as model proteins to analyze structural changes in proteins after adsorption on ordered mesoporous silica SBA-15 and propyl-functionalized SBA-15 (C(3)SBA-15) with carefully controlled pore size. Liquid phase ATR-FTIR spectroscopy was used to study the amide I and II bands of the adsorbed proteins. The amide I bands showed that the secondary structures of free and adsorbed protein molecules differ, and that the secondary structure of the adsorbed protein is influenced by the local geometry as well as by the surface chemistry of the nanopores. The conformation of the adsorbed proteins inside the nanopores of SBA-15 and C(3)SBA-15 is strongly correlated with the local geometry and the surface properties of the nanoporous materials, which results in different catalytic activities. Adsorption by electrostatic interaction of proteins in nanopores of an optimal size provides a favorably confining and protecting environment, which may lead to considerably enhanced structural stability and catalytic activity.
Collapse
Affiliation(s)
- Lung-Ching Sang
- Howard P. Isermann Department of Chemical and Biological Engineering, Rensselaer Polytechnic Institute, 110 8th Street, Troy, NY, USA
| | | |
Collapse
|
48
|
Li H, He J, Zhao Y, Wu D, Cai Y, Wei Q, Yang M. Immobilization of glucose oxidase and platinum on mesoporous silica nanoparticles for the fabrication of glucose biosensor. Electrochim Acta 2011. [DOI: 10.1016/j.electacta.2010.12.098] [Citation(s) in RCA: 48] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
49
|
Luo L, Kong F, Chu S, Liu Y, Zhu H, Wang Y, Zou Z. Hemoglobin immobilized within mesoporous TiO2–SiO2 material with high loading and enhanced catalytic activity. NEW J CHEM 2011. [DOI: 10.1039/c1nj20711c] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|
50
|
Itoh T, Shimomura T, Hasegawa Y, Mizuguchi J, Hanaoka T, Hayashi A, Yamaguchi A, Teramae N, Ono M, Mizukami F. Assembly of an artificial biomembrane by encapsulation of an enzyme, formaldehyde dehydrogenase, into the nanoporous-walled silica nanotube–inorganic composite membrane. ACTA ACUST UNITED AC 2011. [DOI: 10.1039/c0jm01523g] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
|