1
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Effect of Saccharides Coating on Antibacterial Potential and Drug Loading and Releasing Capability of Plasma Treated Polylactic Acid Films. Int J Mol Sci 2022; 23:ijms23158821. [PMID: 35955952 PMCID: PMC9369226 DOI: 10.3390/ijms23158821] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2022] [Revised: 08/02/2022] [Accepted: 08/06/2022] [Indexed: 02/07/2023] Open
Abstract
More than half of the hospital-associated infections worldwide are related to the adhesion of bacteria cells to biomedical devices and implants. To prevent these infections, it is crucial to modify biomaterial surfaces to develop the antibacterial property. In this study, chitosan (CS) and chondroitin sulfate (ChS) were chosen as antibacterial coating materials on polylactic acid (PLA) surfaces. Plasma-treated PLA surfaces were coated with CS either direct coating method or the carbodiimide coupling method. As a next step for the combined saccharide coating, CS grafted samples were immersed in ChS solution, which resulted in the polyelectrolyte complex (PEC) formation. Also in this experiment, to test the drug loading and releasing efficiency of the thin film coatings, CS grafted samples were immersed into lomefloxacin-containing ChS solution. The successful modifications were confirmed by elemental composition analysis (XPS), surface topography images (SEM), and hydrophilicity change (contact angle measurements). The carbodiimide coupling resulted in higher CS grafting on the PLA surface. The coatings with the PEC formation between CS-ChS showed improved activity against the bacteria strains than the separate coatings. Moreover, these interactions increased the lomefloxacin amount adhered to the film coatings and extended the drug release profile. Finally, the zone of inhibition test confirmed that the CS-ChS coating showed a contact killing mechanism while drug-loaded films have a dual killing mechanism, which includes contact, and release killing.
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2
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Highly sensitive pregnancy test kit via oriented antibody conjugation on brush-type ligand-coated quantum beads. Biosens Bioelectron 2022; 213:114441. [PMID: 35696868 DOI: 10.1016/j.bios.2022.114441] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Revised: 05/15/2022] [Accepted: 05/29/2022] [Indexed: 11/21/2022]
Abstract
Lateral flow assays (LFA) enable development of portable and rapid diagnostic kits; however, their capacity to detect low levels of disease markers remains poor. Here, we report a highly sensitive pregnancy test kit as a proof of concept, by combining brush-type ligand-coated quantum beads (B-type QBs) and nanobody, which can control the antibody orientation and enhance sensitivity. The brush-type ligand provided excellent dispersion stability and high-binding capacity toward antibody. Fc-binding nanobody increased the antigen-binding capacity of conjugated antibodies on the B-type QBs. To facilitate convenient acquisition of the LFA results, we developed a smartphone-based reader with a 3D-printed optical imaging module, and validated the diagnostic performance of the sensing platform. The pregnancy test kit achieved a 5.1 pg mL-1 limit of detection, corresponding to the levels for early-stage detection of heart disease and malaria. Our LFA application can potentially be expanded to diagnosis other diseases by simply changing the antibody pair in the kit.
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3
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Synthesis of end group-functionalized PGMA-peptide brush platforms for specific cell attachment by interface-mediated dissociative electron transfer reversible addition-fragmentation chain transfer radical (DET-RAFT) polymerization. Eur Polym J 2021. [DOI: 10.1016/j.eurpolymj.2021.110370] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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4
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Li P, Ding Z, Yin Y, Yu X, Yuan Y, Brió Pérez M, de Beer S, Vancso GJ, Yu Y, Zhang S. Cu2+-doping of polyanionic brushes: A facile route to prepare implant coatings with both antifouling and antibacterial properties. Eur Polym J 2020. [DOI: 10.1016/j.eurpolymj.2020.109845] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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5
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Wang Q, Chen K, Qu Y, Li K, Zhang Y, Fu E. Hairy Fluorescent Nanospheres Based on Polyelectrolyte Brush for Highly Sensitive Determination of Cu(II). Polymers (Basel) 2020; 12:E577. [PMID: 32150845 PMCID: PMC7182828 DOI: 10.3390/polym12030577] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2020] [Revised: 02/27/2020] [Accepted: 02/28/2020] [Indexed: 11/29/2022] Open
Abstract
Currently, it is an ongoing challenge to develop fluorescent nanosphere detectors that are uniform, non-toxic, stable and bearing a large number of functional groups on the surface for further applications in a variety of fields. Here, we have synthesized hairy nanospheres (HNs) with different particle sizes and a content range of carboxyl groups from 4 mmol/g to 9 mmol/g. Based on this, hairy fluorescent nanospheres (HFNs) were prepared by the traditional coupling method (TCM) or adsorption-induced coupling method (ACM). By comparison, it was found that high brightness HFNs are fabricated based on HNs with poly (acrylic acid) brushes on the surface via ACM. The fluorescence intensity of hairy fluorescent nanospheres could be controlled by tuning the content of 5-aminofluorescein (5-AF) or the carboxyl groups of HNs easily. The carboxyl content of the HFNs could be as high as 8 mmol/g for further applications. The obtained HFNs are used for the detection of heavy metal ions in environmental pollution. Among various other metal ions, the response to Cu (II) is more obvious. We demonstrated that HFNs can serve as a selective probe and for the separation and determination of Cu(II) ions with a linear range of 0-0.5 μM and a low detection limit of 64 nM.
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Affiliation(s)
- Qiaoling Wang
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China; (Q.W.); (K.L.); (E.F.)
| | - Kaimin Chen
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China; (Q.W.); (K.L.); (E.F.)
| | - Yi Qu
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China; (Q.W.); (K.L.); (E.F.)
| | - Kai Li
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China; (Q.W.); (K.L.); (E.F.)
| | - Ying Zhang
- School of Chemical Engineering, East China University of Science and Technology, Shanghai 200237, China;
| | - Enyu Fu
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, China; (Q.W.); (K.L.); (E.F.)
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6
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Klinthoopthamrong N, Chaikiawkeaw D, Phoolcharoen W, Rattanapisit K, Kaewpungsup P, Pavasant P, Hoven VP. Bacterial cellulose membrane conjugated with plant-derived osteopontin: Preparation and its potential for bone tissue regeneration. Int J Biol Macromol 2020; 149:51-59. [PMID: 31981668 DOI: 10.1016/j.ijbiomac.2020.01.158] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2019] [Revised: 01/07/2020] [Accepted: 01/16/2020] [Indexed: 12/12/2022]
Abstract
Bacterial cellulose membrane (BCM) has been recently recognized as a new generation of carbohydrate-based nanomaterial that possesses a great potential in tissue engineering applications. This research aims to develop an active non-resorbable guided tissue regeneration (GTR) membrane from BCM by conjugating with plant-derived recombinant human osteopontin (p-rhOPN), an economically produced and RGD-containing biomolecule. The BCM was initially grafted with poly(acrylic acid) (PAA) brushes to form poly(acrylic acid)-grafted BCM. Multiple carboxyl groups introduced to the BCM by PAA can serve as active anchoring points for p-rhOPN conjugation and yielded p-rhOPN-BCM. All chemically modified BCMs were characterized by attenuated total reflectance Fourier transform infrared spectroscopy and X-ray photoelectron spectroscopy, while their surface morphology was evaluated by field emission-scanning electron microscopy and atomic force microscopy analyses. The amount of p-rhOPN adhered on the membrane was quantified by enzyme-linked immunosorbent assay. The immunocytochemistry, two-stage quantitative real-time reverse transcriptase polymerase chain reaction and in vitro mineralization analyses strongly suggested that p-rhOPN-BCM could elicit biological functions leading to the enhancement of osteogenic differentiation of human periodontal ligament stem cells as effective as BCM conjugated with commercially available rhOPN from mammalian cells (rhOPN-BCM), suggesting its potential to be used as GTR membrane to promote bone tissue regeneration.
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Affiliation(s)
- Nichapa Klinthoopthamrong
- Program in Petrochemistry and Polymer Science, Faculty of Science, Chulalongkorn University, Phayathai Road, Pathumwan, Bangkok 10330, Thailand
| | - Daneeya Chaikiawkeaw
- Department of Anatomy, Faculty of Dentistry, Chulalongkorn University, Phayathai Road, Pathumwan, Bangkok 10330, Thailand
| | - Waranyoo Phoolcharoen
- Department of Pharmacognosy and Pharmaceutical Botany, Faculty of Pharmaceutical Sciences, Chulalongkorn University, Phayathai Road, Pathumwan, Bangkok 10330, Thailand; Research Unit for Plant-Produced Pharmaceuticals, Chulalongkorn University, Phayathai Road, Pathumwan, Bangkok 10330, Thailand
| | - Kaewta Rattanapisit
- Research Unit for Plant-Produced Pharmaceuticals, Chulalongkorn University, Phayathai Road, Pathumwan, Bangkok 10330, Thailand
| | - Pornjira Kaewpungsup
- Mineralized Tissue Research Unit, Faculty of Dentistry, Chulalongkorn University, Phayathai Road, Pathumwan, Bangkok 10330, Thailand
| | - Prasit Pavasant
- Department of Anatomy, Faculty of Dentistry, Chulalongkorn University, Phayathai Road, Pathumwan, Bangkok 10330, Thailand
| | - Voravee P Hoven
- Department of Chemistry, Faculty of Science, Chulalongkorn University, Phayathai Road, Pathumwan, Bangkok 10330, Thailand; Center of Excellence in Materials and Bio-interfaces, Chulalongkorn University, Phayathai Road, Pathumwan, Bangkok 10330, Thailand.
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7
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Synthesis and Characterization of Cry2Ab-AVM Bioconjugate: Enhanced Affinity to Binding Proteins and Insecticidal Activity. Toxins (Basel) 2019; 11:toxins11090497. [PMID: 31461921 PMCID: PMC6783867 DOI: 10.3390/toxins11090497] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2019] [Revised: 08/15/2019] [Accepted: 08/15/2019] [Indexed: 12/23/2022] Open
Abstract
Bacillus thuringiensis insecticidal proteins (Bt toxins) have been widely used in crops for agricultural pest management and to reduce the use of chemical insecticides. Here, we have engineered Bt toxin Cry2Ab30 and bioconjugated it with 4"-O-succinyl avermectin (AVM) to synthesize Cry2Ab-AVM bioconjugate. It was found that Cry2Ab-AVM showed higher insecticidal activity against Plutella xylostella, up to 154.4 times compared to Cry2Ab30. The binding results showed that Cry2Ab-AVM binds to the cadherin-like binding protein fragments, the 10th and 11th cadherin repeat domains in the P. xylostella cadherin (PxCR10-11), with a much higher affinity (dissociation equilibrium constant KD = 3.44 nM) than Cry2Ab30 (KD = 28.7 nM). Molecular docking suggested that the macrolide lactone group of Cry2Ab-AVM ligand docking into the PxCR10-11 is a potential mechanism to enhance the binding affinity of Cry2Ab-AVM to PxCR10-11. These findings offer scope for the engineering of Bt toxins by bioconjugation for improved pest management.
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8
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Masoomi H, Wang Y, Fang X, Wang P, Chen C, Liu K, Gu H, Xu H. Ultrabright dye-loaded spherical polyelectrolyte brushes and their fundamental structure-fluorescence tuning principles. NANOSCALE 2019; 11:14050-14059. [PMID: 31313795 DOI: 10.1039/c9nr02168j] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Ultrabright fluorescent particles (UFPs) have attracted increasing attention because of their outstanding signal amplification functions. However, there is still an urgent demand for designing novel UFPs with new components or structures as the existing ones can not satisfy the practical requirements due to their inherent disadvantages. Here we propose a novel ultrabright fluorescent particle platform by doping dyes of 5-aminofluorescein (5-AF) into silica core-based spherical poly (acrylic acid) brushes (SiO2@PAA@5-AF) and discuss their fundamental structure-fluorescence tuning principles. A series of brushes with different polymer chain lengths are successfully synthesized and then loaded with 5-AF through chemical binding. The high loading amount, suitable density or distribution, and enhanced quantum yield (QY) of 5-AF due to the amide bond formation with PAA chains on brushes are concluded as the three major reasons for the ultrabrightness of SiO2@PAA@5-AF. Therefore, a 2350 ± 445 times brighter brush particle in comparison to a single quantum dot (QD) is realized, and a 2.1 ± 0.4 times fluorescence improvement of a brush vs. a QD normalized by volume is also achieved when taking the hydrodynamic diameter into consideration (∼300 nm vs. ∼30 nm). Moreover, the excellent tolerance stabilities in normally applied environments and outstanding label effects to form 4-plexed encoded beads are demonstrated as well. The results in this work strongly indicate a promising potential of SiO2@PAA@5-AF as an ultrabright and stable signal amplification tool for biomedical related sensing, labeling, and biodetection.
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Affiliation(s)
- Hajar Masoomi
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China.
| | - Yao Wang
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China.
| | - Xiaoxia Fang
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China.
| | - Peirui Wang
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China.
| | - Cang Chen
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China.
| | - Kai Liu
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China.
| | - Hongchen Gu
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China.
| | - Hong Xu
- School of Biomedical Engineering, Shanghai Jiao Tong University, Shanghai 200030, China.
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9
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Wang Y, Gao Z, Yi J, Zhou H, Fang X, Xu H, Zhao J, Gu H. A spherical poly(acrylic acid) brush-enzyme block with high catalytic capacity for signal amplification in digital biological assays. RSC Adv 2019; 9:23658-23665. [PMID: 35530629 PMCID: PMC9069456 DOI: 10.1039/c9ra03404h] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2019] [Accepted: 07/20/2019] [Indexed: 11/21/2022] Open
Abstract
Ultrasensitive determination of some ultra-low abundance biological molecules closely related to diseases is currently a wide concern and urgent issue to be addressed. Here, a spherical poly(acrylic acid)-alkaline phosphatase (SP-AKP) signal amplification block using spherical poly(acrylic acid) brush nanoparticles (SP) as the immobilized carriers was designed and synthesized optimally first. The results show that a single SP-AKP with high enzyme binding capacity and high catalytic ability (up to about 4800 effective free AKP per SP-AKP) has much greater fluorescence signal amplification ability than a single free AKP or SiO2-COOH-AKP. Then, a droplet generation microfluidic chip was prepared successfully, and the SP-AKP was loaded and confined in a 14 pL droplet by adjusting its concentration to ensure at most one SP-AKP was encapsulated in each droplet according to Poisson's theory. Finally, the fluorescence signals produced by 4-methylumbelliferyl phosphate (4-MUP) catalyzed via SP-AKP within 6 min were sufficient to be detected by a fluorescence microscope. Thus, the digital signal distribution of "1/0" (signal/background) was obtained, making this SP-AKP signal amplification block a promising enzyme label for potential high sensitivity digital biological detection applications.
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Affiliation(s)
- Yibei Wang
- School of Biomedical Engineering, Med-X Research Institute, Shanghai Jiao Tong University Shanghai 200030 PR China
| | - Zehang Gao
- Shanghai Institute of Microsystem and Information Technology, Chinese Academy Science Shanghai 200030 PR China.,School of Information Science and Technology, ShanghaiTech University Shanghai 201210 China.,University of Chinese Academy of Sciences Beijing 100049 China
| | - Jingwei Yi
- School of Biomedical Engineering, Med-X Research Institute, Shanghai Jiao Tong University Shanghai 200030 PR China
| | - Hongbo Zhou
- Shanghai Institute of Microsystem and Information Technology, Chinese Academy Science Shanghai 200030 PR China
| | - Xiaoxia Fang
- School of Biomedical Engineering, Med-X Research Institute, Shanghai Jiao Tong University Shanghai 200030 PR China
| | - Hong Xu
- School of Biomedical Engineering, Med-X Research Institute, Shanghai Jiao Tong University Shanghai 200030 PR China
| | - Jianlong Zhao
- Shanghai Institute of Microsystem and Information Technology, Chinese Academy Science Shanghai 200030 PR China
| | - Hongchen Gu
- School of Biomedical Engineering, Med-X Research Institute, Shanghai Jiao Tong University Shanghai 200030 PR China
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Chowdhury P, Hazra A, Kr. Mondal M, Roy B, Roy D, Prasad Bayen S, Pal S. Facile synthesis of polyacrylate directed silver nanoparticles for pH sensing through naked eye. JOURNAL OF MACROMOLECULAR SCIENCE PART A-PURE AND APPLIED CHEMISTRY 2019. [DOI: 10.1080/10601325.2019.1607376] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
Affiliation(s)
- Pranesh Chowdhury
- Polymer & Nano Research Laboratory, Department of Chemistry, Visva-Bharati University, Santiniketan, India
| | - Abhijit Hazra
- Polymer & Nano Research Laboratory, Department of Chemistry, Visva-Bharati University, Santiniketan, India
| | - Maloy Kr. Mondal
- Polymer & Nano Research Laboratory, Department of Chemistry, Visva-Bharati University, Santiniketan, India
| | - Bishnupada Roy
- Polymer & Nano Research Laboratory, Department of Chemistry, Visva-Bharati University, Santiniketan, India
| | - Debiprasad Roy
- Polymer & Nano Research Laboratory, Department of Chemistry, Visva-Bharati University, Santiniketan, India
| | - Shyama Prasad Bayen
- Polymer & Nano Research Laboratory, Department of Chemistry, Visva-Bharati University, Santiniketan, India
| | - Sumana Pal
- Polymer & Nano Research Laboratory, Department of Chemistry, Visva-Bharati University, Santiniketan, India
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11
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Badoux M, Billing M, Klok HA. Polymer brush interfaces for protein biosensing prepared by surface-initiated controlled radical polymerization. Polym Chem 2019. [DOI: 10.1039/c9py00163h] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This article discusses protein-binding polymer brushes and the various strategies that can be used to immobilize proteins on these films.
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Affiliation(s)
- Michael Badoux
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimique
- Laboratoire des Polymères
- École Polytechnique Fédérale de Lausanne (EPFL)
- Bâtiment MXD
- CH-1015 Lausanne
| | - Mark Billing
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimique
- Laboratoire des Polymères
- École Polytechnique Fédérale de Lausanne (EPFL)
- Bâtiment MXD
- CH-1015 Lausanne
| | - Harm-Anton Klok
- Institut des Matériaux and Institut des Sciences et Ingénierie Chimique
- Laboratoire des Polymères
- École Polytechnique Fédérale de Lausanne (EPFL)
- Bâtiment MXD
- CH-1015 Lausanne
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12
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Zhang L, Du Y, Song J, Qi H. Biocompatible magnetic nanoparticles grafted by poly(carboxybetaine acrylamide) for enzyme immobilization. Int J Biol Macromol 2018; 118:1004-1012. [PMID: 29969641 DOI: 10.1016/j.ijbiomac.2018.06.181] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2018] [Revised: 06/24/2018] [Accepted: 06/28/2018] [Indexed: 11/29/2022]
Abstract
Herein, the zwitterionic material poly (carboxybetaine acrylamide) was grafted onto iron oxide to obtain biocompatible magnetic nanoparticles Fe3O4-pCBAA which were employed to immobilize enzymes. The nanocomplxes Fe3O4-pCBAA were characterized using scanning electron microscopy (SEM), dynamic light scattering (DLS), zeta potential, Fourier transform-infrared (FT-IR) spectra and energy dispersive X-ray spectrometry (EDX). The urease as a model enzyme was immobilized with the novel supports and the properties of immobilized urease were further investigated in comparison with the free urease counterpart. The immobilized urease exhibited excellent thermodynamic and chemical stability. Particularly, 60% of initial activity was remained after being stored at 70 °C for 2 h while the free urease only remained 30%. Besides, the relative activity of immobilized enzyme was 1.7 times that of free ones after disposed in ethanol and 2-propanol for 2 h, and 7 times in DMF. Moreover, immobilized urease retained >80% of its initial activity after 5 cycles. In addition, the immobilization carrier Fe3O4-pCBAA displayed famous biocompatibility, and the immobilized urease performed better in complex biological samples, which were >85% and <60% of its initial activity for the immobilized and dissociative urease, respectively, in 20% and 25% of serum. These results confirm that the nanoparticles Fe3O4-pCBAA are biofriendly and efficient supports for enzyme immobilization and potential for practical applications in bio-microenvironments.
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Affiliation(s)
- Lei Zhang
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, China
| | - Yan Du
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, China
| | - Jiayin Song
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, China
| | - Haishan Qi
- Department of Biochemical Engineering, School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072, China; Key Laboratory of Systems Bioengineering (Ministry of Education), Tianjin University, Tianjin 300072, China; Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin University, Tianjin 300072, China.
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13
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Zhang Z, Zhu N, Dong S, Huang M, Yang L, Wu X, Liu Z, Jiang J, Zou Y. Plasmonic ELISA Based on Nanospherical Brush-Induced Signal Amplification for the Ultrasensitive Naked-Eye Simultaneous Detection of the Typical Tetrabromobisphenol A Derivative and Byproduct. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2018; 66:2996-3002. [PMID: 28762732 DOI: 10.1021/acs.jafc.7b02803] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
On the basis of H2O2-mediated growth of gold nanoparticle (AuNPs), a novel plasmonic enzyme-linked immunosorbent assay (pELISA) was developed with a polyclonal antibody for the ultrasensitive simultaneous naked-eye detection of tetrabromobisphenol A bis(2-hydroxyetyl) ether (TBBPA DHEE) and tetrabromobisphenol A mono(hydroxyethyl) ether (TBBPA MHEE), one of the major derivatives and byproducts of tetrabromobisphenol A (TBBPA), respectively. In this modified indirect competitive pELISA, glucose oxidase (GOx) played an important role leading to the growth of AuNPs through a reaction between GOx and glucose to produce hydrogen peroxide (H2O2). In addition, further signal amplification was achieved via a large number of GOx molecules, which were immobilized on silica nanoparticles carrying poly brushes (SiO2@PAA) to increase the enzyme load, and the whole complex was conjugated on the second antibody. Under the optimized conditions, 10-3 μg/L TBBPA DHEE can be distinguished via the observation of a colored solution, and the limit of detection (LOD) of the method using a microplate reader reaches 3.3 × 10-4 μg/L. In contrast, the sensitivity of the method was 3 orders of magnitude higher than that using conventional colorimetric ELISA with the same antibody. Furthermore, the proposed approach showed good repeatability and reliability after a recovery test fortified with a variety of targets was performed (recoveries, 78.00-102.79%; coefficient of variation (CV), 4.38-9.87%). To our knowledge, this is the first case in which pELISA was applied for the detection of small molecules via the production of H2O2 from GOx and glucose. The method will be widely used for the investigation of TBBPA DHEE and TBBPA MHEE in real environments.
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Affiliation(s)
- Zhen Zhang
- School of the Environment and Safety Engineering , Jiangsu University , Zhenjiang 212013 , China
| | - Nuanfei Zhu
- School of the Environment and Safety Engineering , Jiangsu University , Zhenjiang 212013 , China
| | - Shuaibing Dong
- School of the Environment and Safety Engineering , Jiangsu University , Zhenjiang 212013 , China
| | - Menglu Huang
- School of the Environment and Safety Engineering , Jiangsu University , Zhenjiang 212013 , China
| | - Liuqing Yang
- School of Chemistry & Chemical Engineering , Jiangsu University , Zhenjiang 212013 , China
| | - Xiangyang Wu
- School of the Environment and Safety Engineering , Jiangsu University , Zhenjiang 212013 , China
| | - Zhenjiang Liu
- School of the Environment and Safety Engineering , Jiangsu University , Zhenjiang 212013 , China
| | - Jiahao Jiang
- School of the Environment and Safety Engineering , Jiangsu University , Zhenjiang 212013 , China
| | - Yanmin Zou
- School of Pharmacy , Jiangsu University , Zhenjiang 212013 , China
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14
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Wu J, Xianyu Y, Wang X, Hu D, Zhao Z, Lu N, Xie M, Lei H, Chen Y. Enzyme-Free Amplification Strategy for Biosensing Using Fe3+–Poly(glutamic acid) Coordination Chemistry. Anal Chem 2018; 90:4725-4732. [DOI: 10.1021/acs.analchem.7b05344] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023]
Affiliation(s)
- Jing Wu
- Analytical and Testing Center of Beijing Normal University, Beijing 100875, China
| | - Yunlei Xianyu
- CAS Key Laboratory
for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing 100190, China
| | - Xiangfeng Wang
- Analytical and Testing Center of Beijing Normal University, Beijing 100875, China
| | - Dehua Hu
- Analytical and Testing Center of Beijing Normal University, Beijing 100875, China
| | - Zhitao Zhao
- Analytical and Testing Center of Beijing Normal University, Beijing 100875, China
| | - Ning Lu
- Guangdong Provincial
Key Laboratory of Food Quality and Safety/College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Mengxia Xie
- Analytical and Testing Center of Beijing Normal University, Beijing 100875, China
| | - Hongtao Lei
- Guangdong Provincial
Key Laboratory of Food Quality and Safety/College of Food Science, South China Agricultural University, Guangzhou 510642, China
| | - Yiping Chen
- CAS Key Laboratory
for Biological Effects of Nanomaterials and Nanosafety, National Center for Nanoscience and Technology, Beijing 100190, China
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15
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Wu J, Chen Y, Wang Y, Yin H, Zhao Z, Liu N, Xie M, Chen Y. Poly-L-lysine brushes on magnetic nanoparticles for ultrasensitive detection of Escherichia coli O157: H7. Talanta 2017; 172:53-60. [DOI: 10.1016/j.talanta.2017.05.035] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2017] [Revised: 05/05/2017] [Accepted: 05/10/2017] [Indexed: 12/11/2022]
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16
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Chen K, Hu F, Gu H, Xu H. Tuning of surface protein adsorption by spherical mixed charged silica brushes (MCB) with zwitterionic carboxybetaine component. J Mater Chem B 2016; 5:435-443. [PMID: 32263659 DOI: 10.1039/c6tb02817a] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Controlled protein adsorption and release without deformation and loss of activity under mild conditions is an essential issue for biological carriers. A spherical mixed charged silica brush (MCB), which could tune protein adsorption, has been prepared by introducing zwitterionic carboxybetaine copolymer onto the surface of silica nanoparticles for the first time. The simple surface-initiated reversible addition-fragmentation chain transfer polymerization (SI-RAFT) was applied to synthesize the MCB precursor - poly(2-(dimethylamino)ethyl methacrylate) modified silica nanoparticles (SiO2@PDMAEMA). Then, the end group in PDMAEMA was quaternized with propiolactone to obtain poly(DMAEMA-co-carboxybetaine methacrylate) modified silica nanoparticles (SiO2@poly(DMAEMA-co-CBMA)), which was denoted as MCB. In comparison, fully quaternized MCB (SiO2@PCBMA) was also prepared by a one-step strategy. Physicochemical behaviours of MCB in solution were systematically studied. The zwitterionic CBMA component endows the MCB with tunable adsorption towards both acidic and basic proteins through simple adjustment of the DMAEMA to CBMA ratio under mild conditions. This study may have great potential applications in the biomedical field, including tunable drug loading and releasing, and immobilized enzymes, etc.
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Affiliation(s)
- Kaimin Chen
- College of Chemistry and Chemical Engineering, Shanghai University of Engineering Science, Shanghai 201620, People's Republic of China
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17
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Liu EY, Jung S, Yi H. Improved Protein Conjugation with Uniform, Macroporous Poly(acrylamide-co-acrylic acid) Hydrogel Microspheres via EDC/NHS Chemistry. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:11043-11054. [PMID: 27690459 DOI: 10.1021/acs.langmuir.6b02591] [Citation(s) in RCA: 37] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/10/2023]
Abstract
We demonstrate a robust and tunable micromolding method to fabricate chemically functional poly(acrylamide-co-acrylic acid) (p(AAm-co-AA)) hydrogel microspheres with uniform dimensions and controlled porous network structures for rapid biomacromolecular conjugation. Specifically, p(AAm-co-AA) microspheres with abundant carboxylate functional groups are fabricated via surface-tension-induced droplet formation in patterned poly(dimethylsiloxane) molds and photoinduced radical polymerization. To demonstrate the chemical functionality, we enlisted rapid EDC/NHS (1-ethyl-3-(3-(dimethylamino)propyl)carbodiimide (EDC) and N-hydroxysuccinimide (NHS)) chemistry for fluorescent labeling of the microspheres with small-molecule dye fluorescein glycine amide. Epifluorescence imaging results illustrate the uniform incorporation of carboxylate groups within the microspheres and rapid conjugation kinetics. Furthermore, protein conjugation results using red fluorescent protein R-phycoerythrin demonstrate the highly porous nature of the microspheres as well as the utility of the microspheres and the EDC/NHS scheme for facile biomacromolecular conjugation. Combined, these results illustrate the significant potential for our fabrication-conjugation strategy in the development of biofunctionalized polymeric hydrogel microparticles toward rapid biosensing, bioprocess monitoring, and biodiagnostics.
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Affiliation(s)
- Eric Y Liu
- Department of Chemical and Biological Engineering, Tufts University , Medford, Massachusetts 02155, United States
| | - Sukwon Jung
- Department of Chemical and Biological Engineering, Tufts University , Medford, Massachusetts 02155, United States
| | - Hyunmin Yi
- Department of Chemical and Biological Engineering, Tufts University , Medford, Massachusetts 02155, United States
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18
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Zhao Y, Wang Y, Zhang X, Kong R, Xia L, Qu F. Cascade enzymatic catalysis in poly(acrylic acid) brushes-nanospherical silica for glucose detection. Talanta 2016; 155:265-71. [DOI: 10.1016/j.talanta.2016.04.056] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2016] [Revised: 04/19/2016] [Accepted: 04/24/2016] [Indexed: 12/21/2022]
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19
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Synthesis and characterization of well-defined ligand-terminated block copolymer brushes for multifunctional biointerfaces. POLYMER 2016. [DOI: 10.1016/j.polymer.2016.03.031] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
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20
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Jung S, Choi CH, Lee CS, Yi H. Integrated fabrication-conjugation methods for polymeric and hybrid microparticles for programmable drug delivery and biosensing applications. Biotechnol J 2016; 11:1561-1571. [PMID: 27365166 DOI: 10.1002/biot.201500298] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/06/2015] [Revised: 06/06/2016] [Accepted: 06/07/2016] [Indexed: 12/11/2022]
Abstract
Functionalized polymeric microparticles possess significant potential for controlled drug delivery and biosensing applications, yet current fabrication techniques face challenges in simple and scalable fabrication and biofunctionalization. For programmable manufacture of biofunctional microparticles in a simple manner, we have developed robust micromolding methods combined with biopolymeric conjugation handles and bioorthogonal click reactions. In this focused minireview, we present detailed methods for our integrated approaches for fabrication of microparticles with controlled 2D and 3D shapes and dimensions toward controlled release, and for biomacromolecular conjugation via strain promoted alkyne-azide cycloaddition (SPAAC) and tetrazine-trans-cyclooctene (Tz-TCO) ligation reactions utilizing a potent aminopolysaccharide chitosan as an efficient conjugation handle. We believe that the fabrication-conjugation methods reported here from a range of our recent reports illustrate the simple, robust and readily reproducible nature of our approaches to creating multifaceted microparticles in a programmable, cost-efficient and scalable manner toward a wide range of medical and biotechnological application areas.
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Affiliation(s)
- Sukwon Jung
- Department of Chemical and Biological Engineering, Tufts University, Medford, MA, USA
| | - Chang-Hyung Choi
- Department of Chemical Engineering, Chungnam National University, Daejeon, Republic of Korea.,Current Affiliation: School of Engineering and Applied Sciences, Harvard University, Cambridge, MA, USA
| | - Chang-Soo Lee
- Department of Chemical Engineering, Chungnam National University, Daejeon, Republic of Korea
| | - Hyunmin Yi
- Department of Chemical and Biological Engineering, Tufts University, Medford, MA, USA
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21
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Wiarachai O, Vilaivan T, Iwasaki Y, Hoven VP. Clickable and Antifouling Platform of Poly[(propargyl methacrylate)-ran-(2-methacryloyloxyethyl phosphorylcholine)] for Biosensing Applications. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2016; 32:1184-1194. [PMID: 26695478 DOI: 10.1021/acs.langmuir.5b02727] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
A functional copolymer platform, namely, poly[(propargyl methacrylate)-ran-(2-methacryloyloxyethyl phosphorylcholine)] (PPgMAMPC), was synthesized by reversible addition-fragmentation chain-transfer polymerization. In principle, the alkyne moiety of propargyl methacrylate (PgMA) should serve as an active site for binding azide-containing molecules via a click reaction, i.e., Cu-catalyzed azide/alkyne cycloaddition (CuAAC), and 2-methacryloyloxyethyl phosphorylcholine (MPC), the hydrophilic monomeric unit, should enable the copolymer to suppress nonspecific adsorption. The copolymers were characterized using Fourier transform infrared (FTIR) and (1)H NMR spectroscopies. Thiol-terminated, PPgMAMPC-SH, obtained by aminolysis of PPgMAMPC, was immobilized on a gold-coated substrate using a "grafting to" approach via self-assembly. Azide-containing species, namely, biotin and peptide nucleic acid (PNA), were then immobilized on the alkyne-containing copolymeric platform via CuAAC. The potential use of surface-attached PPgMAMPC in biosensing applications was shown by detection of specific target molecules, i.e., streptavidin (SA) and DNA, by the developed sensing platform using a surface plasmon resonance technique. The copolymer composition strongly influenced the performance of the developed sensing platform in terms of signal-to-noise ratio in the case of the biotin-SA system and hybridization efficiency and mismatch discrimination for the PNA-DNA system.
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Affiliation(s)
| | | | - Yasuhiko Iwasaki
- Faculty of Chemistry, Materials and Bioengineering, Kansai University , 3-3-35 Yamate-cho, Suita-shi, Osaka 564-8680, Japan
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22
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Huang X, Chen R, Xu H, Lai W, Xiong Y. Nanospherical Brush as Catalase Container for Enhancing the Detection Sensitivity of Competitive Plasmonic ELISA. Anal Chem 2016; 88:1951-8. [DOI: 10.1021/acs.analchem.5b04518] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Affiliation(s)
- Xiaolin Huang
- State
Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, P. R. China
- Jiangxi-OAI
Joint Research Institute, Nanchang University, Nanchang 330047, P. R. China
| | - Rui Chen
- State
Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, P. R. China
- College
of Life Science, Nanchang University, Nanchang 330031, P. R. China
- Jiangxi-OAI
Joint Research Institute, Nanchang University, Nanchang 330047, P. R. China
| | - Hengyi Xu
- State
Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, P. R. China
| | - Weihua Lai
- State
Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, P. R. China
| | - Yonghua Xiong
- State
Key Laboratory of Food Science and Technology, Nanchang University, Nanchang 330047, P. R. China
- College
of Life Science, Nanchang University, Nanchang 330031, P. R. China
- Jiangxi-OAI
Joint Research Institute, Nanchang University, Nanchang 330047, P. R. China
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23
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Zhao Y, Zheng Y, Kong R, Xia L, Qu F. Ultrasensitive electrochemical immunosensor based on horseradish peroxidase (HRP)-loaded silica-poly(acrylic acid) brushes for protein biomarker detection. Biosens Bioelectron 2016; 75:383-8. [DOI: 10.1016/j.bios.2015.08.065] [Citation(s) in RCA: 92] [Impact Index Per Article: 11.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/01/2015] [Revised: 08/17/2015] [Accepted: 08/28/2015] [Indexed: 01/05/2023]
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24
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Weishaupt R, Siqueira G, Schubert M, Tingaut P, Maniura-Weber K, Zimmermann T, Thöny-Meyer L, Faccio G, Ihssen J. TEMPO-Oxidized Nanofibrillated Cellulose as a High Density Carrier for Bioactive Molecules. Biomacromolecules 2015; 16:3640-50. [DOI: 10.1021/acs.biomac.5b01100] [Citation(s) in RCA: 68] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ramon Weishaupt
- Laboratory
for Biointerfaces, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, CH-9014 St. Gallen, Switzerland
| | - Gilberto Siqueira
- Laboratory
for Applied Wood Materials, Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Mark Schubert
- Laboratory
for Applied Wood Materials, Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Philippe Tingaut
- Laboratory
for Applied Wood Materials, Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Katharina Maniura-Weber
- Laboratory
for Biointerfaces, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, CH-9014 St. Gallen, Switzerland
| | - Tanja Zimmermann
- Laboratory
for Applied Wood Materials, Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, CH-8600 Dübendorf, Switzerland
| | - Linda Thöny-Meyer
- Laboratory
for Biointerfaces, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, CH-9014 St. Gallen, Switzerland
| | - Greta Faccio
- Laboratory
for Biointerfaces, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, CH-9014 St. Gallen, Switzerland
| | - Julian Ihssen
- Laboratory
for Biointerfaces, Empa, Swiss Federal Laboratories for Materials Science and Technology, Lerchenfeldstrasse 5, CH-9014 St. Gallen, Switzerland
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25
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Qu Z, Xu H, Gu H. Synthesis and Biomedical Applications of Poly((meth)acrylic acid) Brushes. ACS APPLIED MATERIALS & INTERFACES 2015; 7:14537-14551. [PMID: 26067846 DOI: 10.1021/acsami.5b02912] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Poly((meth)acrylic acid) (P(M)AA) brushes possess a number of distinctive properties that are particularly attractive for biomedical applications. This minireview summarizes recent advances in the synthesis and biomedical applications of P(M)AA brushes and brushes containing P(M)AA segments. First, we review different surface-initiated polymerization (SIP) methods, with a focus on recent progress in the surface-initiated controlled/living radical polymerization (SI-CLRP) techniques used to generate P(M)AA brushes with a tailored structure. Next, we discuss biomolecule immobilization methods for P(M)AA brushes, including physical adsorption, covalent binding, and affinity interactions. Finally, typical biomedical applications of P(M)AA brushes are reviewed, and their performance is discussed based on their unique properties. We conclude that P(M)AA brushes are promising biomaterials, and more potential biomedical applications are expected to emerge with the further development of synthetic techniques and increased understanding of their interactions with biological systems.
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Affiliation(s)
- Zhenyuan Qu
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, School of Biomedical Engineering, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai 200030, China
| | - Hong Xu
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, School of Biomedical Engineering, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai 200030, China
| | - Hongchen Gu
- State Key Laboratory of Oncogenes and Related Genes, Shanghai Cancer Institute, School of Biomedical Engineering, Shanghai Jiao Tong University, 1954 Huashan Road, Shanghai 200030, China
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26
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Huang Z, Wang H, Yang W. Gold Nanoparticle-Based Facile Detection of Human Serum Albumin and Its Application as an INHIBIT Logic Gate. ACS APPLIED MATERIALS & INTERFACES 2015; 7:8990-8998. [PMID: 25850684 DOI: 10.1021/acsami.5b01552] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
In this work, a facile colorimetric method is developed for quantitative detection of human serum albumin (HSA) based on the antiaggregation effect of gold nanoparticles (Au NPs) in the presence of HSA. The citrate-capped Au NPs undergo a color change from red to blue when melamine is added as a cross-linker to induce the aggregation of the NPs. Such an aggregation is efficiently suppressed upon the adsorption of HSA on the particle surface. This method provides the advantages of simplicity and cost-efficiency for quantitative detection of HSA with a detection limit of ∼1.4 nM by monitoring the colorimetric changes of the Au NPs with UV-vis spectroscopy. In addition, this approach shows good selectivity for HSA over various amino acids, peptides, and proteins and is qualified for detection of HSA in a biological sample. Such an antiaggregation effect can be further extended to fabricate an INHIBIT logic gate by using HSA and melamine as inputs and the color changes of Au NPs as outputs, which may have application potentials in point-of-care medical diagnosis.
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Affiliation(s)
- Zhenzhen Huang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Haonan Wang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
| | - Wensheng Yang
- State Key Laboratory of Supramolecular Structure and Materials, College of Chemistry, Jilin University, Changchun 130012, People's Republic of China
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27
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Bhakta SA, Evans E, Benavidez TE, Garcia CD. Protein adsorption onto nanomaterials for the development of biosensors and analytical devices: a review. Anal Chim Acta 2015; 872:7-25. [PMID: 25892065 PMCID: PMC4405630 DOI: 10.1016/j.aca.2014.10.031] [Citation(s) in RCA: 139] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/24/2014] [Revised: 09/25/2014] [Accepted: 10/21/2014] [Indexed: 12/11/2022]
Abstract
An important consideration for the development of biosensors is the adsorption of the biorecognition element to the surface of a substrate. As the first step in the immobilization process, adsorption affects most immobilization routes and much attention is given into the research of this process to maximize the overall activity of the biosensor. The use of nanomaterials, specifically nanoparticles and nanostructured films, offers advantageous properties that can be fine-tuned to maximize interactions with specific proteins to maximize activity, minimize structural changes, and enhance the catalytic step. In the biosensor field, protein-nanomaterial interactions are an emerging trend that span across many disciplines. This review addresses recent publications about the proteins most frequently used, their most relevant characteristics, and the conditions required to adsorb them to nanomaterials. When relevant and available, subsequent analytical figures of merits are discussed for selected biosensors. The general trend amongst the research papers allows concluding that the use of nanomaterials has already provided significant improvements in the analytical performance of many biosensors and that this research field will continue to grow.
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Affiliation(s)
- Samir A Bhakta
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA
| | - Elizabeth Evans
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA
| | - Tomás E Benavidez
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA
| | - Carlos D Garcia
- Department of Chemistry, The University of Texas at San Antonio, One UTSA Circle, San Antonio, TX 78249, USA.
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28
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Wang XY, Jiang XP, Li Y, Zeng S, Zhang YW. Preparation Fe3O4@chitosan magnetic particles for covalent immobilization of lipase from Thermomyces lanuginosus. Int J Biol Macromol 2015; 75:44-50. [DOI: 10.1016/j.ijbiomac.2015.01.020] [Citation(s) in RCA: 102] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Revised: 01/09/2015] [Accepted: 01/10/2015] [Indexed: 12/25/2022]
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29
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Paik BA, Blanco MA, Jia X, Roberts CJ, Kiick KL. Aggregation of poly(acrylic acid)-containing elastin-mimetic copolymers. SOFT MATTER 2015; 11:1839-50. [PMID: 25611563 PMCID: PMC4376481 DOI: 10.1039/c4sm02525c] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Polymer-peptide conjugates were produced via the copper-catalyzed azide-alkyne cycloaddition of poly(tert-butyl acrylate) (PtBA) and elastin-like peptides. An azide-functionalized polymer was produced via atom transfer radical polymerization (ATRP) followed by conversion of bromine end groups to azide groups. Subsequent reaction of the polymer with a bis-alkyne-functionalized, elastin-like peptide proceeded with high efficiency, yielding di- and tri-block conjugates, which after deprotection, yielded poly(acrylic acid) (PAA)-based diblock and triblock copolymers. These conjugates were solubilized in dimethyl formamide, and addition of phosphate buffered saline (PBS) induced aggregation. The presence of polydisperse spherical aggregates was confirmed by dynamic light scattering and transmission electron microscopy. Additionally, a coarse-grained molecular model was designed to reasonably capture inter- and intramolecular interactions for the conjugates and its precursors. This model was used to assess the effect of the different interacting molecular forces on the conformational thermodynamic stability of the copolymers. Our results indicated that the PAA's ability to hydrogen-bond with both itself and the peptide is the main interaction for stabilizing the diblocks and triblocks and driving their self-assembly, while interactions between peptides are suggested to play only a minor role on the conformational and thermodynamic stability of the conjugates.
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Affiliation(s)
- Bradford A Paik
- Department of Materials Science and Engineering, Delaware Biotechnology Institute, University of Delaware, Newark, DE 19716, USA.
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30
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Shen Y, Zhang Y, Zhang X, Zhou X, Teng X, Yan M, Bi H. Horseradish peroxidase-immobilized magnetic mesoporous silica nanoparticles as a potential candidate to eliminate intracellular reactive oxygen species. NANOSCALE 2015; 7:2941-2950. [PMID: 25587910 DOI: 10.1039/c4nr06269h] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Horseradish peroxidase-immobilized magnetic mesoporous silica nanoparticles (MMSNs-HRP) have been synthesized by a NHS/EDC coupling between the amino groups of horseradish peroxidase (HRP) and the carboxyl groups on the MMSNs surface. It is found that the immobilized HRP on MMSNs still retain high activity and the MMSNs-HRP can eliminate the reactive oxygen species (ROS) in Chinese hamster ovary (CHO) cells induced by the addition of H2O2 aqueous solution. Further, the fluorescent MMSN-HRP-CD nanoparticles have been prepared by attaching biocompatible, fluorescent carbon dots (CDs) to MMSNs-HRP. We have also investigated the effect of an applied magnetic field on cellular uptake of MMSNs-HRP-CDs and found that the internalization of MMSNs-HRP-CDs by CHO cells could be enhanced within 2 hours under the magnetic field. This work provides us with a novel and efficient method to eliminate ROS in living cells by using HRP-immobilized nanoparticles.
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Affiliation(s)
- Yajing Shen
- College of Chemistry and Chemical Engineering, Anhui University, Hefei 230601, China.
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31
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Xiong Y, Tu Z, Huang X, Xie B, Xiong Y, Xu Y. Magnetic beads carrying poly(acrylic acid) brushes as “nanobody containers” for immunoaffinity purification of aflatoxin B1 from corn samples. RSC Adv 2015. [DOI: 10.1039/c5ra15843e] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Magnetic beads with poly(acrylic acid) brushes as “nanobody containers” for aflatoxin B1 immunoaffinity purification.
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Affiliation(s)
- Ying Xiong
- State Key Laboratory of Food Science and Technology
- Nanchang University
- Nanchang 330047
- P. R. China
- Jiangxi-OAI Joint Research Institute
| | - Zhui Tu
- State Key Laboratory of Food Science and Technology
- Nanchang University
- Nanchang 330047
- P. R. China
| | - Xiaolin Huang
- State Key Laboratory of Food Science and Technology
- Nanchang University
- Nanchang 330047
- P. R. China
| | - Bing Xie
- Centre of Analysis and Test
- Nanchang University
- Nanchang 330047
- P. R. China
| | - Yonghua Xiong
- State Key Laboratory of Food Science and Technology
- Nanchang University
- Nanchang 330047
- P. R. China
- Jiangxi-OAI Joint Research Institute
| | - Yang Xu
- State Key Laboratory of Food Science and Technology
- Nanchang University
- Nanchang 330047
- P. R. China
- Jiangxi-OAI Joint Research Institute
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32
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Qu Z, Xu H, Xu P, Chen K, Mu R, Fu J, Gu H. Ultrasensitive ELISA using enzyme-loaded nanospherical brushes as labels. Anal Chem 2014; 86:9367-71. [PMID: 25196700 DOI: 10.1021/ac502522b] [Citation(s) in RCA: 80] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
Improving the detection sensitivity of enzyme-linked immunosorbent assay (ELISA) is of utmost importance for meeting the demand of early disease diagnosis. Herein we report an ultrasensitive ELISA system using horseradish peroxidase (HRP)-loaded nanospherical poly(acrylic acid) brushes (SPAABs) as labels. HRP was covalently immobilized in SPAABs with high capacity and activity via an efficient "chemical conjugation after electrostatic entrapment" (CCEE) process, thus endowing SPAABs with high amplification capability as labels. The periphery of SPAAB-HRP was further utilized to bind a layer of antibody with high density for efficient capture of analytes owing to the three-dimensional architecture of SPAABs. Using human chorionic gonadotrophin (hCG) as a model analyte, the SPAAB-amplified system drastically boosted the detection limit of ELISA to 0.012 mIU mL(-1), a 267-fold improvement as compared to conventional ELISA systems.
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Affiliation(s)
- Zhenyuan Qu
- State Key Laboratory of Oncogenes and Related Genes, School of Biomedical Engineering, Shanghai Jiao Tong University , Shanghai 200030, P. R. China
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