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Kim S, Kim G, Ji YW, Moon CE, Jung Y, Lee HK, Lee J, Koh WG. Real-time and label-free biosensing using moiré pattern generated by bioresponsive hydrogel. Bioact Mater 2023; 23:383-393. [DOI: 10.1016/j.bioactmat.2022.11.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 10/14/2022] [Accepted: 11/15/2022] [Indexed: 11/30/2022] Open
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2
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Xu R, Tian J, Song Y, Dong S, Zhang Y. Multiple Responsive Hydrogel Films Based on Dynamic Phenylboronate Bond Linkages with Simple but Practical Linear Response Mode and Excellent Glucose/Fructose Response Speed. Polymers (Basel) 2023; 15:polym15091998. [PMID: 37177146 PMCID: PMC10181213 DOI: 10.3390/polym15091998] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2023] [Revised: 04/17/2023] [Accepted: 04/20/2023] [Indexed: 05/15/2023] Open
Abstract
Multiple responsive hydrogels are usually constructed by the addition of many different functional groups. Generally, these groups have different responsive behaviors which lead to interleaved and complex modes of the multi-response system. It is difficult to get a practical application. In this study, we show that multi-response hydrogels can also be constructed using dynamic bonds as crosslinks. The multiple responsive hydrogel films with thicknesses on the sub-micrometer or micrometer scale can be fabricated from P(DMAA-3-AAPBA), a copolymer of N,N-dimethylacrylamide, 3-(acrylamido)phenylboronic acid, and poly(vinylalcohol) (PVA) though a simple layer-by-layer (LbL) technique. The driving force for the film build up is the in situ-formed phenylboronate ester bonds between the two polymers. The films exhibit Fabry-Perot fringes on their reflection spectra which can be used to calculate the equilibrium swelling degree (SDe) of the film so as to characterize its responsive behaviors. The results show that the films are responsive to temperature, glucose, and fructose with simple and practical linear response modes. More importantly, the speed of which the films respond to glucose or fructose is quite fast, with characteristic response times of 45 s and 7 s, respectively. These quick response films may have potential for real-time, continuous glucose or fructose monitoring. With the ability to bind with these biologically important molecules, one can expect that hydrogels may find more applications in biomedical areas in the future.
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Affiliation(s)
- Rong Xu
- China Academy of Aviation Manufacturing Technology, Beijing 100024, China
| | - Jiafeng Tian
- China Academy of Aviation Manufacturing Technology, Beijing 100024, China
| | - Yusheng Song
- China Academy of Aviation Manufacturing Technology, Beijing 100024, China
| | - Shihui Dong
- China Academy of Aviation Manufacturing Technology, Beijing 100024, China
| | - Yongjun Zhang
- School of Chemistry, Tiangong University, Tianjin 300387, China
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Unger K, Coclite AM. Glucose-Responsive Boronic Acid Hydrogel Thin Films Obtained via Initiated Chemical Vapor Deposition. Biomacromolecules 2022; 23:4289-4295. [PMID: 36053563 PMCID: PMC9554909 DOI: 10.1021/acs.biomac.2c00762] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
![]()
Glucose-responsive materials are of great importance
in the field
of monitoring the physiological glucose level or smart insulin management.
This study presents the first vacuum-based deposition of a glucose-responsive
hydrogel thin film. The successful vacuum-based synthesis of a glucose-responsive
hydrogel may open the door to a vast variety of new applications,
where, for example, the hydrogel thin film is applied on new possible
substrates. In addition, vacuum-deposited films are free of leachables
(e.g., plasticizers and residual solvents). Therefore, they are, in
principle, safe for in-body applications. A hydrogel made of but-3-enylboronic
acid units, a boronic acid compound, was synthesized via initiated
chemical vapor deposition. The thin film was characterized in terms
of chemical composition, surface morphology, and swelling response
toward pH and sucrose, a glucose–fructose compound. The film
was stable in aqueous solutions, consisting of polymerized boronic
acid and the initiator unit, and had an undulating texture appearance
(rms 2.1 nm). The hydrogel was in its shrunken state at pH 4–7
and swelled by increasing the pH to 9. The pKa was 8.2 ± 0.2. The response to glucose was observed
at pH 10 and resulted in thickness shrinking.
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Affiliation(s)
- Katrin Unger
- Institute of Solid State Physics, NAWI Graz, Graz University of Technology, 8010 Graz, Austria
| | - Anna Maria Coclite
- Institute of Solid State Physics, NAWI Graz, Graz University of Technology, 8010 Graz, Austria
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4
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Abstract
Recent years have seen substantial efforts aimed at constructing artificial cells from various molecular components with the aim of mimicking the processes, behaviours and architectures found in biological systems. Artificial cell development ultimately aims to produce model constructs that progress our understanding of biology, as well as forming the basis for functional bio-inspired devices that can be used in fields such as therapeutic delivery, biosensing, cell therapy and bioremediation. Typically, artificial cells rely on a bilayer membrane chassis and have fluid aqueous interiors to mimic biological cells. However, a desire to more accurately replicate the gel-like properties of intracellular and extracellular biological environments has driven increasing efforts to build cell mimics based on hydrogels. This has enabled researchers to exploit some of the unique functional properties of hydrogels that have seen them deployed in fields such as tissue engineering, biomaterials and drug delivery. In this Review, we explore how hydrogels can be leveraged in the context of artificial cell development. We also discuss how hydrogels can potentially be incorporated within the next generation of artificial cells to engineer improved biological mimics and functional microsystems.
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Ibarra-Rodríguez M, Sánchez M. Adsorption of metformin on graphitic carbon nitride functionalized with metals of group 1–3 (Li, Na, K, Be, Mg, Ca, B, Al, and Ga), DFT calculations. COMPUT THEOR CHEM 2022. [DOI: 10.1016/j.comptc.2021.113532] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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6
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Wang S, Liu G, Yang B, Zhang Z, Hu D, Wu C, Qin Y, Dou Q, Dai Q, Hu W. Low-fouling CNT-PEG-hydrogel coated quartz crystal microbalance sensor for saliva glucose detection. RSC Adv 2021; 11:22556-22564. [PMID: 35480473 PMCID: PMC9034414 DOI: 10.1039/d1ra02841c] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2021] [Accepted: 06/14/2021] [Indexed: 12/19/2022] Open
Abstract
Saliva glucose detection based on a quartz crystal microbalance (QCM) sensor has emerged as a promising tool and a non-invasive diagnostic technique for diabetes. However, the low glucose concentration and strong protein interference in the saliva hinder the QCM sensors from practical applications. In this study, we present a robust and simple anti-fouling CNT-PEG-hydrogel film-coated QCM sensor for the detection of saliva glucose with high sensitivity. The CNT-PEG-hydrogel film consists of two layers; the bottom base PBA-hydrogel film is designed to recognize the glucose while the top CNT-PEG layer is used to restrict protein adsorption and improve the biocompatibility. Our results show that this CNT-PEG-hydrogel film exhibited a 10-fold enhancement on the detection limit compared to the PBA-hydrogel. Meanwhile, the adsorption of proteins on the surface of the CNT-PEG-hydrogel film, including bovine serum albumin (BSA), mucin (MUC), and fibrinogen (FIB), were reduced by 99.1%, 77.8%, and 83.7%, respectively. The CNT-PEG-hydrogel film could detect the typical saliva glucose level (0-50 mg L-1) in 10% saliva with a good responsivity. To sum up, this new tool with low-fouling film featuring high stability, specificity, and selectivity holds great potential for non-invasive monitoring of saliva glucose in human physiological levels.
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Affiliation(s)
- Shiwen Wang
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Sciences, Tianjin University Tianjin 300072 China
- Division of Nanophotonics, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology Beijing 100190 P. R. China +86-010-82545720
| | - Guanjiang Liu
- Division of Nanophotonics, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology Beijing 100190 P. R. China +86-010-82545720
| | - Bei Yang
- Division of Nanophotonics, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology Beijing 100190 P. R. China +86-010-82545720
| | - Zifeng Zhang
- Division of Nanophotonics, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology Beijing 100190 P. R. China +86-010-82545720
| | - Debo Hu
- Division of Nanophotonics, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology Beijing 100190 P. R. China +86-010-82545720
| | - Chenchen Wu
- Division of Nanophotonics, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology Beijing 100190 P. R. China +86-010-82545720
| | - Yaling Qin
- Division of Nanophotonics, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology Beijing 100190 P. R. China +86-010-82545720
| | - Qian Dou
- Division of Nanophotonics, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology Beijing 100190 P. R. China +86-010-82545720
| | - Qing Dai
- Division of Nanophotonics, CAS Key Laboratory of Standardization and Measurement for Nanotechnology, CAS Center for Excellence in Nanoscience, National Center for Nanoscience and Technology Beijing 100190 P. R. China +86-010-82545720
| | - Wenping Hu
- Tianjin Key Laboratory of Molecular Optoelectronic Sciences, Department of Chemistry, School of Sciences, Tianjin University Tianjin 300072 China
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7
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Sęk JP, Kaczmarczyk S, Guńka K, Kowalczyk A, Borys KM, Kasprzak A, Nowicka AM. Boronate-appended polymers with diol-functionalized ferrocene: an effective and selective method for voltammetric glucose sensing. Dalton Trans 2021; 50:880-889. [PMID: 33350427 DOI: 10.1039/d0dt03776a] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
In this research, three types of poly(amidoamine) dendrimers doped with a phenylboronic derivative at different ratios of -B(OH)2 groups to amino groups (-NH2) and one polyethyleneimine (PEI) polymer doped with a phenylboronic acid derivative were used as molecular receptors. The voltammetric glucose detection was based on the difference in the affinity of the tested systems in relation to 2-((ferrocenylmethyl)amino)propane-1,3-diol (Fc-1,3-diol) and glucose. Polymeric phenylboronic compounds were introduced to the electrode surface through an electrodeposition process at a constant potential. The obtained calibration curves were characterized by a wide range of linearity (0.005-100 μM) and low values of the limit of detection reaching even 0.0012 μM. Moreover, the influence of interferents (ascorbic acid, uric acid and fructose) was investigated at two different concentrations. Only fructose had a significant influence on the oxidation signal of ferrocene units, but solely in the case of R-Ph-B(OH)2 (where R = PEI or PAMAM; Ph - phenyl ring) systems with a low content of boron groups, and these systems form complexes with glucose in a stoichiometric ratio of 1 : 1. The reliability of the results was confirmed by determining the percentage of recovery (added glucose vs. labeled glucose). Most of the results met the acceptance criteria (95%-105%), allowing the developed electrochemical sensors to be successfully used for the analysis of real-life samples.
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Affiliation(s)
- Jakub P Sęk
- Faculty of Chemistry, University of Warsaw, Pasteura 1 Str., PL-02-093 Warsaw, Poland.
| | - Sabina Kaczmarczyk
- Faculty of Chemistry, University of Warsaw, Pasteura 1 Str., PL-02-093 Warsaw, Poland.
| | - Katarzyna Guńka
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3 Str., PL-00-664 Warsaw, Poland.
| | - Agata Kowalczyk
- Faculty of Chemistry, University of Warsaw, Pasteura 1 Str., PL-02-093 Warsaw, Poland.
| | - Krzysztof M Borys
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3 Str., PL-00-664 Warsaw, Poland.
| | - Artur Kasprzak
- Faculty of Chemistry, Warsaw University of Technology, Noakowskiego 3 Str., PL-00-664 Warsaw, Poland.
| | - Anna M Nowicka
- Faculty of Chemistry, University of Warsaw, Pasteura 1 Str., PL-02-093 Warsaw, Poland.
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8
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Gholamali I. Stimuli-Responsive Polysaccharide Hydrogels for Biomedical Applications: a Review. REGENERATIVE ENGINEERING AND TRANSLATIONAL MEDICINE 2019. [DOI: 10.1007/s40883-019-00134-1] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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9
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Delgadillo Armendariz NL, Rangel Vázquez NA, Marquez Brazon E. SEMI-empirical PM6 method applied in the analysis of thermodynamics properties and molecular orbitals at different temperatures of adsorption drugs on chitosan hydrogels for type 2 diabetes. Polym Bull (Berl) 2019. [DOI: 10.1007/s00289-018-2549-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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10
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Kim A, Lee H, Jones CF, Mujumdar SK, Gu Y, Siegel RA. Swelling, Mechanics, and Thermal/Chemical Stability of Hydrogels Containing Phenylboronic Acid Side Chains. Gels 2017; 4:gels4010004. [PMID: 30674779 PMCID: PMC6318662 DOI: 10.3390/gels4010004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2017] [Revised: 12/14/2017] [Accepted: 12/20/2017] [Indexed: 11/16/2022] Open
Abstract
We report here studies of swelling, mechanics, and thermal stability of hydrogels consisting of 20 mol % methacrylamidophenylboronic acid (MPBA) and 80 mol % acrylamide (AAm), lightly crosslinked with methylenebisacrylamide (Bis). Swelling was measured in solutions of fixed ionic strength, but with varying pH values and fructose concentrations. Mechanics was studied by compression and hold. In the absence of sugar or in the presence of fructose, the modulus was mostly maintained during the hold period, while a significant stress relaxation was seen in the presence of glucose, consistent with reversible, dynamic crosslinks provided by glucose, but not fructose. Thermal stability was determined by incubating hydrogels at pH 7.4 at room temperature, and 37, 50, and 65 °C, and monitoring swelling. In PBS (phosphate buffered saline) solutions containing 9 mM fructose, swelling remained essentially complete for 50 days at room temperature, but decreased substantially with time at the higher temperatures, with accelerated reduction of swelling with increasing temperature. Controls indicated that over long time periods, both the MPBA and AAm units were experiencing conversion to different species.
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Affiliation(s)
- Arum Kim
- Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN 55455, USA.
| | - Heelim Lee
- Department of Chemical Engineering and Materials Science, University of Minnesota, Minneapolis, MN 55455, USA.
- Department of Pharmaceutics, University of Minnesota, Minneapolis, MN 55455, USA.
| | - Clinton F Jones
- Department of Pharmaceutics, University of Minnesota, Minneapolis, MN 55455, USA.
| | - Siddharthya K Mujumdar
- Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN 55455, USA.
| | - Yuandong Gu
- Department of Pharmaceutics, University of Minnesota, Minneapolis, MN 55455, USA.
| | - Ronald A Siegel
- Department of Biomedical Engineering, University of Minnesota, Minneapolis, MN 55455, USA.
- Department of Pharmaceutics, University of Minnesota, Minneapolis, MN 55455, USA.
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11
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Samaryk V, Varvarenko S, Nosova N, Fihurka N, Musyanovych A, Landfester K, Popadyuk N, Voronov S. Optical properties of hydrogels filled with dispersed nanoparticles. CHEMISTRY & CHEMICAL TECHNOLOGY 2017. [DOI: 10.23939/chcht11.04.449] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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12
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Daikuzono CM, Delaney C, Tesfay H, Florea L, Oliveira ON, Morrin A, Diamond D. Impedance spectroscopy for monosaccharides detection using responsive hydrogel modified paper-based electrodes. Analyst 2017; 142:1133-1139. [DOI: 10.1039/c6an02571d] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Novel paper-based impedance sensor for saccharide sensing in the sub-mM range.
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Affiliation(s)
- C. M. Daikuzono
- Insight Centre for Data Analytics
- National Centre for Sensor Research
- School of Chemical Sciences
- Dublin City University
- Ireland
| | - C. Delaney
- Insight Centre for Data Analytics
- National Centre for Sensor Research
- School of Chemical Sciences
- Dublin City University
- Ireland
| | - H. Tesfay
- Insight Centre for Data Analytics
- National Centre for Sensor Research
- School of Chemical Sciences
- Dublin City University
- Ireland
| | - L. Florea
- Insight Centre for Data Analytics
- National Centre for Sensor Research
- School of Chemical Sciences
- Dublin City University
- Ireland
| | - O. N. Oliveira
- Instituto de Física de São Carlos
- Universidade de São Paulo
- Brazil
| | - A. Morrin
- Insight Centre for Data Analytics
- National Centre for Sensor Research
- School of Chemical Sciences
- Dublin City University
- Ireland
| | - D. Diamond
- Insight Centre for Data Analytics
- National Centre for Sensor Research
- School of Chemical Sciences
- Dublin City University
- Ireland
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13
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Haefner S, Frank P, Langer E, Gruner D, Schmidt U, Elstner M, Gerlach G, Richter A. Chemically controlled micro-pores and nano-filters for separation tasks in 2D and 3D microfluidic systems. RSC Adv 2017. [DOI: 10.1039/c7ra07016k] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Chemically adapted size exclusion functionalities of PNIPAAm-based nano-filters or micro-pores for separation tasks in microfluidics is presented.
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Affiliation(s)
- Sebastian Haefner
- Institute for Semiconductors and Microsystems
- Department of Electrical and Computer Engineering
- Technische Universität Dresden
- 01062 Dresden
- Germany
| | - Philipp Frank
- Institute for Semiconductors and Microsystems
- Department of Electrical and Computer Engineering
- Technische Universität Dresden
- 01062 Dresden
- Germany
| | - Enrico Langer
- Institute for Semiconductors and Microsystems
- Department of Electrical and Computer Engineering
- Technische Universität Dresden
- 01062 Dresden
- Germany
| | - Denise Gruner
- Institute for Semiconductors and Microsystems
- Department of Electrical and Computer Engineering
- Technische Universität Dresden
- 01062 Dresden
- Germany
| | - Ulrike Schmidt
- Institute of Solid State Electronics
- Department of Electrical and Computer Engineering
- Technische Universität Dresden
- 01062 Dresden
- Germany
| | - Martin Elstner
- Institute for Semiconductors and Microsystems
- Department of Electrical and Computer Engineering
- Technische Universität Dresden
- 01062 Dresden
- Germany
| | - Gerald Gerlach
- Institute of Solid State Electronics
- Department of Electrical and Computer Engineering
- Technische Universität Dresden
- 01062 Dresden
- Germany
| | - Andreas Richter
- Institute for Semiconductors and Microsystems
- Department of Electrical and Computer Engineering
- Technische Universität Dresden
- 01062 Dresden
- Germany
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14
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Abureesh MA, Oladipo AA, Gazi M. Facile synthesis of glucose-sensitive chitosan–poly(vinyl alcohol) hydrogel: Drug release optimization and swelling properties. Int J Biol Macromol 2016; 90:75-80. [DOI: 10.1016/j.ijbiomac.2015.10.001] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2015] [Revised: 08/27/2015] [Accepted: 10/01/2015] [Indexed: 01/10/2023]
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15
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Narkar A, Barker B, Clisch M, Jiang J, Lee BP. pH Responsive and Oxidation Resistant Wet Adhesive based on Reversible Catechol-Boronate Complexation. CHEMISTRY OF MATERIALS : A PUBLICATION OF THE AMERICAN CHEMICAL SOCIETY 2016; 28:5432-5439. [PMID: 27551163 PMCID: PMC4988242 DOI: 10.1021/acs.chemmater.6b01851] [Citation(s) in RCA: 78] [Impact Index Per Article: 9.8] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/09/2016] [Revised: 07/12/2016] [Indexed: 05/22/2023]
Abstract
A smart adhesive capable of binding to a wetted surface was prepared by copolymerizing dopamine methacrylamide (DMA) and 3-acrylamido phenylboronic acid (AAPBA). pH was used to control the oxidation state and the adhesive property of the catechol side chain of DMA and to trigger the catechol-boronate complexation. FTIR spectroscopy confirmed the formation of the complex at pH 9, which was not present at pH 3. The formation of the catechol-boronate complex increased the cross-linking density of the adhesive network. Most notably, the loss modulus values of the adhesive were more than an order of magnitude higher for adhesive incubated at pH 9 when compared to those measured at pH 3. This drastic increase in the viscous dissipation property is attributed to the introduction of reversible complexation into the adhesive network. Based on the Johnson Kendall Roberts (JKR) contact mechanics test, adhesive containing both DMA and AAPBA demonstrated strong interfacial binding properties (work of adhesion (Wadh) = 2000 mJ/m2) to borosilicate glass wetted with an acidic solution (pH 3). When the pH was increased to 9, Wadh values (180 mJ/m2) decreased by more than an order of magnitude. During successive contact cycles, the adhesive demonstrated the capability to transition reversibly between its adhesive and nonadhesive states with changing pH. Adhesive containing only DMA responded slowly to repeated changes in pH and became progressively oxidized without the protection of boronic acid. Although adhesive containing only AAPBA also demonstrated strong wet adhesion (Wadh ∼ 500 mJ/m2), its adhesive properties were not pH responsive. Both DMA and AAPBA are required to fabricate a smart adhesive with tunable and reversible adhesive properties.
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16
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Influence of temperature, pH and simulated biological solutions on swelling and structural properties of biomineralized (CaCO 3) PVP-CMC hydrogel. Prog Biomater 2015; 4:123-136. [PMID: 26566470 PMCID: PMC4636533 DOI: 10.1007/s40204-015-0043-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Accepted: 10/22/2015] [Indexed: 11/29/2022] Open
Abstract
Abstract Biomaterials having stimuli response are interesting in the biomedical field. This paper reports about swelling response and internalstructural of biomineralized (CaCO3) polyvinylpyrrolidone (PVP) carboxymethylcellulose (CMC) hydrogel having various thicknesses (0.1–0.4 mm). Samples were tested in aqueous solution using temperature ranges from 10 to 40 °C; pH varies from 4 to 9, time 60 min. In addition, an experiment was conducted in the presence of simulated biological solutions (SBS): glucose (GS), physiological fluid (PS) and urea (US) at temperature 37 °C and pH 7.5 for 180 min. It is noticed that the maximum swelling ratio reached in 30–40 °C at pH 7 in aqueous solution. Among biological fluids, the swelling ratio shows: US > PS > GS at temperature 37 °C, pH 7.5, time 150 min. The equilibrium swelling ratio of the test sample in SBS and their non-reformative apparent structure confirm that biomineralized (CaCO3) PVP–CMC hydrogel can be acclaimed for medical application like bone tissue engineering. Graphical Abstract ![]()
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17
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Hasegawa U, Nishida T, van der Vlies AJ. Dual Stimuli-Responsive Phenylboronic Acid-Containing Framboidal Nanoparticles by One-Step Aqueous Dispersion Polymerization. Macromolecules 2015. [DOI: 10.1021/acs.macromol.5b00574] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Affiliation(s)
| | - Tomoki Nishida
- Research Center
for Ultra-High Voltage Electron Microscopy, Osaka University, 7-1 Mihogaoka, Ibaraki, Osaka 567-0047, Japan
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18
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Le Cerf D. [Stimuli-sensitive polymer systems]. ANNALES PHARMACEUTIQUES FRANÇAISES 2014; 72:389-99. [PMID: 25438649 DOI: 10.1016/j.pharma.2014.04.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2014] [Revised: 04/03/2014] [Accepted: 04/07/2014] [Indexed: 01/24/2023]
Abstract
The polymers can be found in different forms in solution (particles, capsules, pseudo-micelles, hydrogels…) or on surface with important prospects in many field applications. These polymer systems are particularly very good candidates to entrap, transport and deliver an active substance in biomedical applications however with many limitations on control of release of a given target. The stimuli-sensitive polymers, also called smart or environmentally sensitive polymers, present physical or chemical changes under the action of small variations of an external stimulus. This signal acts as a stimulus which causes the change of conformation and/or solvation of the macromolecular chains by modifying their various interactions. The stimuli are classified into two broad categories: physical or external stimuli: temperature, mechanical stress, light, magnetic and electric fields; chemical and biochemical or internal stimuli: pH, ionic strength, chemical molecule (glucose, redox) or biochemical (enzymes, antigens…). The use of stimuli-sensitive pathway is widely used in the literature to enhance or trigger the release of an active compound. In this paper, we present the different stimuli addressing the theoretical aspects, polymers corresponding to these stimuli. Some examples illustrate these systems for the controlled release of active compounds.
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Affiliation(s)
- D Le Cerf
- Normandie université, France; Laboratoire polymères biopolymères surfaces, université de Rouen, 76821 Mont Saint-Aignan, France; CNRS UMR 6270 & FR3038, 76821 Mont Saint-Aignan, France.
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19
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Siegel RA. Stimuli sensitive polymers and self regulated drug delivery systems: a very partial review. J Control Release 2014; 190:337-51. [PMID: 24984012 PMCID: PMC4142101 DOI: 10.1016/j.jconrel.2014.06.035] [Citation(s) in RCA: 73] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2014] [Revised: 06/18/2014] [Accepted: 06/21/2014] [Indexed: 10/25/2022]
Abstract
Since the early days of the Journal of Controlled Release, there has been considerable interest in materials that can release drug on an "on-demand" basis. So called "stimuli-responsive" and "intelligent" systems have been designed to deliver drug at various times or at various sites in the body, according to a stimulus that is either endogenous or externally applied. In the past three decades, research along these lines has taken numerous directions, and each new generation of investigators has discovered new physicochemical principles and chemical schemes by which the release properties of materials can be altered. No single review could possibly do justice to all of these approaches. In this article, some general observations are made, and a partial history of the field is presented. Both open loop and closed loop systems are discussed. Special emphasis is placed on stimuli-responsive hydrogels, and on systems that can respond repeatedly. It is argued that the most success at present and in the foreseeable future is with systems in which biosensing and actuation (i.e. drug delivery) are separated, with a human and/or cybernetic operator linking the two.
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Affiliation(s)
- Ronald A Siegel
- Department of Pharmaceutics, University of Minnesota, Minneapolis, MN 55455 USA; Department Biomedical Engineering, University of Minnesota, Minneapolis, MN 55455 USA.
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Zhang C, Cano GG, Braun PV. Linear and fast hydrogel glucose sensor materials enabled by volume resetting agents. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2014; 26:5678-5683. [PMID: 25042106 DOI: 10.1002/adma.201401710] [Citation(s) in RCA: 75] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/15/2014] [Revised: 05/21/2014] [Indexed: 05/28/2023]
Abstract
A volume resetting agent is incorporated into a boronic acid functionalized hydrogel containing an embedded photonic crystal, yielding a glucose sensor material with a linear and fast response, minimal hysteresis, and good stability under simulated physiological conditions. The hydrogel can be tuned to modulate both the sensitivity and kinetics.
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Affiliation(s)
- Chunjie Zhang
- Department of Materials Science and Engineering, Frederick Seitz Materials Research Laboratory, Beckman Institute for Advanced Science and Technology, University of Illinois at Urbana-Champaign, Urbana, IL, 61801, USA
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