1
|
Shen Z, Zhang C, Wang T, Xu J. Advances in Functional Hydrogel Wound Dressings: A Review. Polymers (Basel) 2023; 15:polym15092000. [PMID: 37177148 PMCID: PMC10180742 DOI: 10.3390/polym15092000] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2023] [Revised: 04/20/2023] [Accepted: 04/21/2023] [Indexed: 05/15/2023] Open
Abstract
One of the most advanced, promising, and commercially viable research issues in the world of hydrogel dressing is gaining functionality to achieve improved therapeutic impact or even intelligent wound repair. In addition to the merits of ordinary hydrogel dressings, functional hydrogel dressings can adjust their chemical/physical properties to satisfy different wound types, carry out the corresponding reactions to actively create a healing environment conducive to wound repair, and can also control drug release to provide a long-lasting benefit. Although a lot of in-depth research has been conducted over the last few decades, very few studies have been properly summarized. In order to give researchers a basic blueprint for designing functional hydrogel dressings and to motivate them to develop ever-more intelligent wound dressings, we summarized the development of functional hydrogel dressings in recent years, as well as the current situation and future trends, in light of their preparation mechanisms and functional effects.
Collapse
Affiliation(s)
- Zihao Shen
- Aulin College, Northeast Forestry University, Harbin 150040, China
| | - Chenrui Zhang
- Aulin College, Northeast Forestry University, Harbin 150040, China
| | - Ting Wang
- Aulin College, Northeast Forestry University, Harbin 150040, China
- College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, 26 Hexing Road, Harbin 150040, China
| | - Juan Xu
- National Research Institute for Family Planning, Haidian District, No. 12, Da Hui Si Road, Beijing 100081, China
| |
Collapse
|
2
|
Liu L, Rambarran T, Sheardown H. Phenylboronic acid modified hydrogel materials and their potential for use in contact lens based drug delivery. JOURNAL OF BIOMATERIALS SCIENCE. POLYMER EDITION 2022; 33:1924-1938. [PMID: 35695022 DOI: 10.1080/09205063.2022.2088531] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/04/2022] [Revised: 05/31/2022] [Accepted: 06/08/2022] [Indexed: 06/15/2023]
Abstract
The use of hydrogel-based contact lens materials holds promise for ophthalmic drug delivery by increasing drug residence time, improving drug bioavailability, reducing administration frequency, and enhancing special site targeting. Issues such as ease of manufacturing, lens comfort and appropriate release kinetics must be considered. Furthermore, the high water content of hydrogel materials can result in rapid and poorly controlled release kinetics. Herein, we modified common hydrogels used in contact lens manufacturing with phenylboronic acid (PBA). PBA addresses these material design issues since boronate esters are easily formed when boron acid and diols interact, opening up a pathway for simple modification of the model lens materials with saccharide based wetting agents. The wetting agents have the potential to improve lens comfort. Furthermore, the hydrophobicity of PBA and the presence of diols can be useful to help control drug release kinetics. In this work, polymerizable 3-(acrylamido)phenylboronic acid (APBA) was synthesized and incorporated into various hydrogels used in contact lens applications, including poly(2-hydroxyethylmethacrylate) (PHEMA), polyvinylpyrrolidone (PVP) and poly(N,N-dimethyl acrylamide) (PDMA) using UV induced free radical polymerization. The APBA structure and its incorporation into the hydrogel materials were confirmed by NMR and FTIR. The materials were shown to interact with and bind wetting agents such as hyaluronan (HA) and hydroxypropyl guar (HPG) by simple soaking in an aqueous solution. The equilibrium water content of the modified materials was characterized, demonstrating that most materials are still in the appropriate range after the introduction of the hydrophobic PBA. The release of three model ophthalmic drugs with varying hydrophilicity, atropine, atropine sulfate and dexamethasone, was examined. The presence of PBA in the materials was found to promote sustained drug release due to its hydrophobic nature. The results suggest that the modification of the materials with PBA was able to not only provide a mucoadhesive property that enhanced wetting agent interactions with the materials, but had the potential to alter drug release. Thus, the modification of contact lens materials with mucoadhesive functionality may be useful in the design of hydrogel contact lenses for ophthalmic drug release and wetting agent binding.
Collapse
Affiliation(s)
- Lina Liu
- Department of Chemical Engineering, McMaster University, Hamilton, ON, Canada
| | - Talena Rambarran
- Department of Chemical Engineering, McMaster University, Hamilton, ON, Canada
| | - Heather Sheardown
- Department of Chemical Engineering, McMaster University, Hamilton, ON, Canada
| |
Collapse
|
3
|
Li H, Yang Y, Li M, Zhu Y, Zhang C, Zhang R, Song Y. Frost-resistant and ultrasensitive strain sensor based on a tannic acid-nanocellulose/sulfonated carbon nanotube-reinforced polyvinyl alcohol hydrogel. Int J Biol Macromol 2022; 219:199-212. [PMID: 35908676 DOI: 10.1016/j.ijbiomac.2022.07.180] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/09/2022] [Revised: 07/14/2022] [Accepted: 07/22/2022] [Indexed: 11/05/2022]
Abstract
The operating temperature of hydrogels, especially at low temperatures, is crucial due to their wide applicability in soft robots, sensors, and electronic skin. Hydrogels are often used at room temperature, but their performance may deteriorate at low temperatures. Therefore, it is crucial to develop hydrogels that can be used at low temperatures to expand their range of use. Herein, we have proposed a simple one-pot method to prepare a frost-resistant (-70 °C) and conductive hydrogel consisting of a glycerol (Gly)-water binary solvent. We have added tannic acid (TA)-coated carboxymethylated cellulose nanofibrils (CMCNFs) to poly (vinyl alcohol) (PVA) as a functional filler to improve the hydrogel's mechanical properties. The introduction of sulfonated carbon nanotubes (SCNT) has provided the hydrogel with high conductivity (0.1 S/m), strain sensitivity (gauge factor of 3.76), and cyclic stability (1600 cycles). Due to the strong hydrogen bonding and physical entanglement effects between the components, the hydrogel exhibied excellent tensile properties (297 %), high toughness (0.44 MJ/m3), and a high Young's modulus (1.25 MPa). These characteristics ensure that the hydrogel is well suited for low-temperature environments, health monitoring, and wearable devices.
Collapse
Affiliation(s)
- Heqian Li
- Key Laboratory of Bio-based Material Science and Technology (Ministry of Education), Northeast Forestry University, Harbin 150040, PR China
| | - Yutong Yang
- Key Laboratory of Bio-based Material Science and Technology (Ministry of Education), Northeast Forestry University, Harbin 150040, PR China
| | - Miao Li
- Key Laboratory of Bio-based Material Science and Technology (Ministry of Education), Northeast Forestry University, Harbin 150040, PR China
| | - Yachong Zhu
- Key Laboratory of Bio-based Material Science and Technology (Ministry of Education), Northeast Forestry University, Harbin 150040, PR China
| | - Congcong Zhang
- Key Laboratory of Bio-based Material Science and Technology (Ministry of Education), Northeast Forestry University, Harbin 150040, PR China
| | - Rui Zhang
- Key Laboratory of Bio-based Material Science and Technology (Ministry of Education), Northeast Forestry University, Harbin 150040, PR China
| | - Yongming Song
- Key Laboratory of Bio-based Material Science and Technology (Ministry of Education), Northeast Forestry University, Harbin 150040, PR China.
| |
Collapse
|
4
|
Epoxy vitrimer based on borate ester bond for green degradation, closed-loop recycling, and ready reprocessing. JOURNAL OF POLYMER RESEARCH 2022. [DOI: 10.1007/s10965-022-03105-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
5
|
A distinct RNA recognition mechanism governs Np4 decapping by RppH. Proc Natl Acad Sci U S A 2022; 119:2117318119. [PMID: 35131855 PMCID: PMC8833179 DOI: 10.1073/pnas.2117318119] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/17/2021] [Indexed: 01/15/2023] Open
Abstract
Dinucleoside tetraphosphate alarmones function in bacteria as precursors to 5′-terminal nucleoside tetraphosphate (Np4) caps, becoming incorporated at high levels into RNA during stress and thereby influencing transcript lifetimes. However, little is known about how these noncanonical caps are removed as a prelude to RNA degradation. Here, we report that the RNA pyrophosphohydrolase RppH assumes a leading role in decapping those transcripts under conditions of disulfide stress and that it recognizes Np4-capped 5′ ends by an unexpected mechanism, generating a triphosphorylated RNA intermediate that must undergo further deprotection by RppH to trigger degradation. These findings help to explain the uneven distribution of Np4 caps on bacterial transcripts and have important implications for how gene expression is reprogrammed in response to stress. Dinucleoside tetraphosphates, often described as alarmones because their cellular concentration increases in response to stress, have recently been shown to function in bacteria as precursors to nucleoside tetraphosphate (Np4) RNA caps. Removal of this cap is critical for initiating 5′ end-dependent degradation of those RNAs, potentially affecting bacterial adaptability to stress; however, the predominant Np4 decapping enzyme in proteobacteria, ApaH, is inactivated by the very conditions of disulfide stress that enable Np4-capped RNAs to accumulate to high levels. Here, we show that, in Escherichia coli cells experiencing such stress, the RNA pyrophosphohydrolase RppH assumes a leading role in decapping those transcripts, preferring them as substrates over their triphosphorylated and diphosphorylated counterparts. Unexpectedly, this enzyme recognizes Np4-capped 5′ ends by a mechanism distinct from the one it uses to recognize other 5′ termini, resulting in a one-nucleotide shift in substrate specificity. The unique manner in which capped substrates of this kind bind to the active site of RppH positions the δ-phosphate, rather than the β-phosphate, for hydrolytic attack, generating triphosphorylated RNA as the primary product of decapping. Consequently, a second RppH-catalyzed deprotection step is required to produce the monophosphorylated 5′ terminus needed to stimulate rapid RNA decay. The unconventional manner in which RppH recognizes Np4-capped 5′ ends and its differential impact on the rates at which such termini are deprotected as a prelude to RNA degradation could have major consequences for reprogramming gene expression during disulfide stress.
Collapse
|
6
|
Zhao X, Chen X, Yuk H, Lin S, Liu X, Parada G. Soft Materials by Design: Unconventional Polymer Networks Give Extreme Properties. Chem Rev 2021; 121:4309-4372. [PMID: 33844906 DOI: 10.1021/acs.chemrev.0c01088] [Citation(s) in RCA: 295] [Impact Index Per Article: 98.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Hydrogels are polymer networks infiltrated with water. Many biological hydrogels in animal bodies such as muscles, heart valves, cartilages, and tendons possess extreme mechanical properties including being extremely tough, strong, resilient, adhesive, and fatigue-resistant. These mechanical properties are also critical for hydrogels' diverse applications ranging from drug delivery, tissue engineering, medical implants, wound dressings, and contact lenses to sensors, actuators, electronic devices, optical devices, batteries, water harvesters, and soft robots. Whereas numerous hydrogels have been developed over the last few decades, a set of general principles that can rationally guide the design of hydrogels using different materials and fabrication methods for various applications remain a central need in the field of soft materials. This review is aimed at synergistically reporting: (i) general design principles for hydrogels to achieve extreme mechanical and physical properties, (ii) implementation strategies for the design principles using unconventional polymer networks, and (iii) future directions for the orthogonal design of hydrogels to achieve multiple combined mechanical, physical, chemical, and biological properties. Because these design principles and implementation strategies are based on generic polymer networks, they are also applicable to other soft materials including elastomers and organogels. Overall, the review will not only provide comprehensive and systematic guidelines on the rational design of soft materials, but also provoke interdisciplinary discussions on a fundamental question: why does nature select soft materials with unconventional polymer networks to constitute the major parts of animal bodies?
Collapse
Affiliation(s)
- Xuanhe Zhao
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States.,Department of Civil and Environmental Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Xiaoyu Chen
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Hyunwoo Yuk
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Shaoting Lin
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - Xinyue Liu
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| | - German Parada
- Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139, United States
| |
Collapse
|
7
|
Tong MQ, Luo LZ, Xue PP, Han YH, Wang LF, Zhuge DL, Yao Q, Chen B, Zhao YZ, Xu HL. Glucose-responsive hydrogel enhances the preventive effect of insulin and liraglutide on diabetic nephropathy of rats. Acta Biomater 2021; 122:111-132. [PMID: 33444802 DOI: 10.1016/j.actbio.2021.01.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 01/01/2021] [Accepted: 01/05/2021] [Indexed: 01/17/2023]
Abstract
Diabetic nephropathy (DN) is one of the most serious complications of diabetes mellitus. The combination of insulin (Ins) with liraglutide (Lir) has a greater potential for preventing DN than monotherapy. However, the renal protective effect of the combined Ins/Lir therapy is largely compromised due to their short half-lives after subcutaneous injection. Herein, a glucose-responsive hydrogel was designed in situ forming the dynamic boronic esters bonds between phenylboronic acid-grafted γ-Polyglutamic acid (PBA-PGA) and konjac glucomannan (KGM). It was hypothesized that the KGM/PBA-PGA hydrogel as the delivery vehicle of Ins/Lir would enhance the combinational effect of the latter on preventing the DN progress. Scan electronic microscopy and rheological studies showed that KGM/PBA-PGA hydrogel displayed good glucose-responsive property. Besides, the glucose-sensitive release profile of either Ins or Lir from KGM/PBA-PGA hydrogel was uniformly displayed at hyperglycemic level. Furthermore, the preventive efficacy of KGM/PBA-PGA hydrogel incorporating insulin and liraglutide (Ins/Lir-H) on DN progress was evaluated on streptozotocin-induced rats with diabetic mellitus (DM). At 6 weeks after subcutaneous injection of Ins/Lir-H, not only the morphology of kidneys was obviously recovered as shown by ultrasonography, but also the renal hemodynamics was significantly improved. Meanwhile, the 24-h urinary protein and albumin/creatinine ratio were well modulated. Inflammation and fibrosis were also largely inhibited. Besides, the glomerular NPHS-2 was obviously elevated after treatment with Ins/Lir-H. The therapeutic mechanism of Ins/Lir-H was highly associated with the alleviation of oxidative stress and activation of autophagy. Conclusively, the better preventive effect of the combined Ins/Lir via KGM/PBA-PGA hydrogel on DN progress was demonstrated as compared with their mixed solution, suggesting KGM/PBA-PGA hydrogel might be a potential vehicle of Ins/Lir to combat the progression of DN.
Collapse
|
8
|
|
9
|
Ryu JH, Lee GJ, Shih YRV, Kim TI, Varghese S. Phenylboronic Acid-polymers for Biomedical Applications. Curr Med Chem 2019; 26:6797-6816. [DOI: 10.2174/0929867325666181008144436] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2018] [Revised: 09/24/2018] [Accepted: 09/26/2018] [Indexed: 02/08/2023]
Abstract
Background:
Phenylboronic acid-polymers (PBA-polymers) have attracted tremendous
attention as potential stimuli-responsive materials with applications in drug-delivery
depots, scaffolds for tissue engineering, HIV barriers, and biomolecule-detecting/sensing platforms.
The unique aspect of PBA-polymers is their interactions with diols, which result in reversible,
covalent bond formation. This very nature of reversible bonding between boronic
acids and diols has been fundamental to their applications in the biomedical area.
Methods:
We have searched peer-reviewed articles including reviews from Scopus, PubMed,
and Google Scholar with a focus on the 1) chemistry of PBA, 2) synthesis of PBA-polymers,
and 3) their biomedical applications.
Results:
We have summarized approximately 179 papers in this review. Most of the applications
described in this review are focused on the unique ability of PBA molecules to interact
with diol molecules and the dynamic nature of the resulting boronate esters. The strong sensitivity
of boronate ester groups towards the surrounding pH also makes these molecules
stimuli-responsive. In addition, we also discuss how the re-arrangement of the dynamic boronate
ester bonds renders PBA-based materials with other unique features such as self-healing
and shear thinning.
Conclusion:
The presence of PBA in the polymer chain can render it with diverse functions/
relativities without changing their intrinsic properties. In this review, we discuss the development
of PBA polymers with diverse functions and their biomedical applications with a
specific focus on the dynamic nature of boronate ester groups.
Collapse
Affiliation(s)
- Ji Hyun Ryu
- Department of Orthopaedic Surgery, Duke University School of Medicine, Durham, North Carolina, NC 27703, United States
| | - Gyeong Jin Lee
- Department of Biosystems & Biomaterials Science and Engineering, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea
| | - Yu-Ru V. Shih
- Department of Orthopaedic Surgery, Duke University School of Medicine, Durham, North Carolina, NC 27703, United States
| | - Tae-il Kim
- Department of Biosystems & Biomaterials Science and Engineering, College of Agriculture and Life Sciences, Seoul National University, 1 Gwanak-ro, Gwanak-gu, Seoul 08826, Korea
| | - Shyni Varghese
- Department of Orthopaedic Surgery, Duke University School of Medicine, Durham, North Carolina, NC 27703, United States
| |
Collapse
|
10
|
Ge W, Cao S, Shen F, Wang Y, Ren J, Wang X. Rapid self-healing, stretchable, moldable, antioxidant and antibacterial tannic acid-cellulose nanofibril composite hydrogels. Carbohydr Polym 2019; 224:115147. [DOI: 10.1016/j.carbpol.2019.115147] [Citation(s) in RCA: 78] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 07/27/2019] [Accepted: 07/30/2019] [Indexed: 10/26/2022]
|
11
|
Liu HY, Qiao Z, Mao XX, Zha JC, Yin J. Phenylboronic Acid-Dopamine Dynamic Covalent Bond Involved Dual-Responsive Polymeric Complex: Construction and Anticancer Investigation. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2019; 35:11850-11858. [PMID: 31423793 DOI: 10.1021/acs.langmuir.9b02194] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
In cancer treatment, prolonging the retention time of therapeutic agents in tumor tissues is a key point in enhancing the therapeutic efficacy. However, drug delivery by intravenous injection is always subjected to a "CAPIR" cascade, including circulation, accumulation, penetration, internalization, and release. Intratumoral administration has gradually emerged as an ideal alternative approach for nanomedicine because of its independence of blood constituents and minimal systemic toxicities. In this contribution, based on the dynamically reversible interaction between boronic acid (BA) and dopamine (DA), a thermo- and pH-responsive polymeric complex is rationally obtained by facile mixing of phenylboronic acid (PBA)- and tetraphenylethene (TPE)-modified poly(N-isopropylacrylamide)-b-poly(phenyl isocyanide)s block copolymers, PNIPAM-b-P(PBAPI-co-TPEPI), and tetra(ethylene glycol) methyl ether acrylate (OEGA)- and DA-containing hydrophilic P(DA-co-OEGA) copolymers. The resultant complex exhibited temperature- and pH-dependent size change as well as sustained nile red (NR) release profiles in a mimic tumor environment. Moreover, thanks to the opposite optical behavior of TPE and NR molecules, the complex could be served as a fluorescence ratiometric cell imaging agent, avoiding the interference of background fluorescence and improving correlated resolution. After encapsulation of camptothecin (anticancer drug), the efficient killing on HeLa cells was achieved in vitro, and the structural integrity of the complex endowed its extended retention time in tumor tissues. Considering these advantages, the reversible covalent interaction between PBA and diols can be used as an efficient driving force to form dynamic drug-delivery vectors, which are promising to be an effective nanoplatform for injectable medical treatments.
Collapse
Affiliation(s)
- Huan-Ying Liu
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering , Hefei University of Technology and Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering and Biomedical and Environmental Interdisciplinary Research Centre , Hefei 230009 , P. R. China
| | - Zhu Qiao
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering , Hefei University of Technology and Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering and Biomedical and Environmental Interdisciplinary Research Centre , Hefei 230009 , P. R. China
| | - Xiao-Xu Mao
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering , Hefei University of Technology and Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering and Biomedical and Environmental Interdisciplinary Research Centre , Hefei 230009 , P. R. China
| | - Jie-Cheng Zha
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering , Hefei University of Technology and Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering and Biomedical and Environmental Interdisciplinary Research Centre , Hefei 230009 , P. R. China
| | - Jun Yin
- Department of Polymer Science and Engineering, School of Chemistry and Chemical Engineering , Hefei University of Technology and Anhui Province Key Laboratory of Advanced Catalytic Materials and Reaction Engineering and Biomedical and Environmental Interdisciplinary Research Centre , Hefei 230009 , P. R. China
| |
Collapse
|
12
|
Luciano DJ, Levenson-Palmer R, Belasco JG. Stresses that Raise Np 4A Levels Induce Protective Nucleoside Tetraphosphate Capping of Bacterial RNA. Mol Cell 2019; 75:957-966.e8. [PMID: 31178354 DOI: 10.1016/j.molcel.2019.05.031] [Citation(s) in RCA: 38] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/20/2019] [Revised: 05/17/2019] [Accepted: 05/23/2019] [Indexed: 12/21/2022]
Abstract
Present in all realms of life, dinucleoside tetraphosphates (Np4Ns) are generally considered signaling molecules. However, only a single pathway for Np4N signaling has been delineated in eukaryotes, and no receptor that mediates the influence of Np4Ns has ever been identified in bacteria. Here we show that, under disulfide stress conditions that elevate cellular Np4N concentrations, diverse Escherichia coli mRNAs and sRNAs acquire a cognate Np4 cap. Purified E. coli RNA polymerase and lysyl-tRNA synthetase are both capable of adding such 5' caps. Cap removal by either of two pyrophosphatases, ApaH or RppH, triggers rapid RNA degradation in E. coli. ApaH, the predominant decapping enzyme, functions as both a sensor and an effector of disulfide stress, which inactivates it. These findings suggest that the physiological changes attributed to elevated Np4N concentrations in bacteria may result from widespread Np4 capping, leading to altered RNA stability and consequent changes in gene expression.
Collapse
Affiliation(s)
- Daniel J Luciano
- Kimmel Center for Biology and Medicine at the Skirball Institute, New York University School of Medicine, 540 First Avenue, New York, NY 10016, USA; Department of Microbiology, New York University School of Medicine, 430 E. 29th Street, New York, NY 10016, USA
| | - Rose Levenson-Palmer
- Kimmel Center for Biology and Medicine at the Skirball Institute, New York University School of Medicine, 540 First Avenue, New York, NY 10016, USA; Department of Microbiology, New York University School of Medicine, 430 E. 29th Street, New York, NY 10016, USA
| | - Joel G Belasco
- Kimmel Center for Biology and Medicine at the Skirball Institute, New York University School of Medicine, 540 First Avenue, New York, NY 10016, USA; Department of Microbiology, New York University School of Medicine, 430 E. 29th Street, New York, NY 10016, USA.
| |
Collapse
|
13
|
Yang HM, Park CW, Lee KW. Enhanced surface decontamination of radioactive Cs by self-generated, strippable hydrogels based on reversible cross-linking. JOURNAL OF HAZARDOUS MATERIALS 2019; 362:72-81. [PMID: 30236944 DOI: 10.1016/j.jhazmat.2018.08.064] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/02/2018] [Revised: 07/18/2018] [Accepted: 08/20/2018] [Indexed: 06/08/2023]
Abstract
A self-generated, strippable hydrogel containing adsorbents was developed to remove the radioactive cesium from surfaces by adsorption for wide-area surface decontamination. Two aqueous polymeric solutions of polyvinyl alcohol (PVA) and phenylboronic-acid-grafted alginate (PBA-Alg) were easily applied to surfaces and subsequently self-generated a hydrogel based on the PBA-diol ester bond. Compared to the strippable coating and chemical gels, the PBA-diol ester bond-based hydrogel was easily peeled off the surfaces without a drying step due to its high elasticity, which is more practical and time saving. The resulting hydrogel displayed high 137Cs removal efficiencies of 91.61% for painted cement, 97.505% for aluminum, 94.05% for stainless steel, and 53.5% for cement, which was 2.3 times higher than that of Decongel due to the presence of the adsorbent in the hydrogel having an excellent Cs distribution coefficient (3.34 × 104 mL/g). Moreover, the volume of radioactive waste generated after the surface decontamination could be reduced by a simple magnetic separation of the adsorbent from the used hydrogel, which can reduce the waste disposal cost. Therefore, our hydrogel system has great potential as a new, cost-effective surface decontaminant in various nuclear industry fields including wide-area environmental remediation after a nuclear accident or terrorist attack.
Collapse
Affiliation(s)
- Hee-Man Yang
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, 989-111 Daedukdaero, Yuseong, Daejeon, 34057, Republic of Korea.
| | - Chan Woo Park
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, 989-111 Daedukdaero, Yuseong, Daejeon, 34057, Republic of Korea
| | - Kune-Woo Lee
- Decommissioning Technology Research Division, Korea Atomic Energy Research Institute, 989-111 Daedukdaero, Yuseong, Daejeon, 34057, Republic of Korea
| |
Collapse
|
14
|
Analysis of RNA 5' ends: Phosphate enumeration and cap characterization. Methods 2018; 155:3-9. [PMID: 30419334 DOI: 10.1016/j.ymeth.2018.10.023] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 10/24/2018] [Accepted: 10/30/2018] [Indexed: 12/21/2022] Open
Abstract
The function and fate of cellular RNAs are often governed by the phosphorylation state at the 5' end or the identity of whatever cap may be present there. Here we describe methods for examining these important 5'-terminal features on any cellular or synthetic RNA of interest that can be detected by Northern blotting. One such method, PABLO, is a splinted ligation assay that makes it possible to accurately quantify the percentage of 5' ends that are monophosphorylated. Another, PACO, is a capping assay that reveals the percentage of 5' ends that are diphosphorylated. A third, boronate gel electrophoresis in conjunction with deoxyribozyme-mediated cleavage, enables different types of caps (e.g., m7Gppp caps versus NAD caps) to be distinguished from one another and the percentage of each to be determined. After completing all three tests, the percentage of 5' ends that are triphosphorylated can be deduced by process of elimination. Together, this battery of assays allows the 5' terminus of an RNA to be profiled in unprecedented detail.
Collapse
|
15
|
Zhi X, Zheng C, Xiong J, Li J, Zhao C, Shi L, Zhang Z. Nanofilamentous Virus-Based Dynamic Hydrogels with Tunable Internal Structures, Injectability, Self-Healing, and Sugar Responsiveness at Physiological pH. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2018; 34:12914-12923. [PMID: 30298737 DOI: 10.1021/acs.langmuir.8b02526] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
With expanding applications of hydrogels in diverse fields ranging from biomaterials to sensors, actuators, and soft robotics, there is an urgent need to endow one single gel with multiple physicochemical properties, such as stimuli-responsiveness, injectability, self-healing, and tunable internal structures. However, it is challenging to simultaneously incorporate these highly sought-after properties into one single gel. Herein, a conceptual hydrogel system with all of these properties is presented via combining bioconjugate chemistry, filamentous viruses, and dynamic covalent bonds. Nanofilamentous bioconjugates with diol affinity were prepared by coupling a tailor-synthesized low-p Ka phenylboronic acid (PBA) derivative to a well-defined green nanofiber the M13 virus with a high aspect ratio (PBA-M13). Dynamic hydrogels with tunable mechanical strength were prepared by using multiple diol-containing agents such as poly(vinyl alcohol) to cross-link such PBA-M13 via the classic boronic-diol dynamic bonds. The as-prepared hydrogels exhibit excellent injectability and self-healing behaviors as well as easy chemical accessibility of the PBA moieties on the virus backbone inside the gel matrix. Ordered internal structures were imparted into virus-based hydrogels by simple shear-induced alignment of the virus nanofibers. Furthermore, unique hydrogels with chiral internal structures were fabricated through in situ gelation induced by diffusion of diol-containing molecules to fix the chiral liquid crystal phase of the PBA-M13 virus. Sugar responsiveness of this gel leads to a glucose-regulated release behavior of payloads such as insulin. All of these properties have been implemented at physiological pH, which will facilitate future applications of these hydrogels as biomaterials.
Collapse
Affiliation(s)
- Xueli Zhi
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Chunxiong Zheng
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Jie Xiong
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Jianyao Li
- School of Chemical Engineering and Technology , Tianjin University , Tianjin 300072 , China
| | - Chenxi Zhao
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Linqi Shi
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| | - Zhenkun Zhang
- Key Laboratory of Functional Polymer Materials of Ministry of Education, Institute of Polymer Chemistry, College of Chemistry , Nankai University , Tianjin 300071 , China
| |
Collapse
|
16
|
Polymer engineering based on reversible covalent chemistry: A promising innovative pathway towards new materials and new functionalities. Prog Polym Sci 2018. [DOI: 10.1016/j.progpolymsci.2018.03.002] [Citation(s) in RCA: 307] [Impact Index Per Article: 51.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
|
17
|
Liao H, Liu Y, Wang Q, Duan W. Structure and properties of porous poly(vinyl alcohol) hydrogel beads prepared through a physical-chemical crosslinking method. J Appl Polym Sci 2018. [DOI: 10.1002/app.46402] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Honghui Liao
- Polymer Research Institute of Sichuan University; State Key Laboratory of Polymer Materials Engineering; Chengdu 610065 China
| | - Yuan Liu
- Polymer Research Institute of Sichuan University; State Key Laboratory of Polymer Materials Engineering; Chengdu 610065 China
| | - Qi Wang
- Polymer Research Institute of Sichuan University; State Key Laboratory of Polymer Materials Engineering; Chengdu 610065 China
| | - Wenfeng Duan
- State Key Laboratory of Special Functional Waterproof Materials; Beijing 101300 China
| |
Collapse
|
18
|
Abstract
Glucose-sensitive hydrogels that have three-dimensional network structure can respond to the glucose, which arouses great interest in biochemistry and biomedical. As a glucose sensitive group, Benzene boric acid has the advantages of good stability, low toxicity and no immune rejection. In this study, synthetic 3-acrylamidophenylboronic acid (AAPBA) with N-isopropylacrylamide (NIPAM) were used to fabricate glucose-responsive hydrogels via free radical polymerization in aqueous media. Several key factors such as polymer compositions and polymer concentrations have been investigated to sensitivity of the hydrogels. These polymers can respond in the presence of glucose, and the monomer ratio has a significant influence on the response behavior of hydrogels. Therefore, it has potential applications in the field of insulin-controlled drug delivery system and biosensor.
Collapse
|
19
|
Amaral AJR, Emamzadeh M, Pasparakis G. Transiently malleable multi-healable hydrogel nanocomposites based on responsive boronic acid copolymers. Polym Chem 2018. [DOI: 10.1039/c7py01202k] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Dynamic multi-responsive gel nanocomposites with rapid self-healing and cell encapsulation properties are presented.
Collapse
Affiliation(s)
| | - Mina Emamzadeh
- UCL School of Pharmacy
- University College London
- London WC1N 1AX
- UK
| | | |
Collapse
|
20
|
Pettignano A, Grijalvo S, Häring M, Eritja R, Tanchoux N, Quignard F, Díaz Díaz D. Boronic acid-modified alginate enables direct formation of injectable, self-healing and multistimuli-responsive hydrogels. Chem Commun (Camb) 2017; 53:3350-3353. [DOI: 10.1039/c7cc00765e] [Citation(s) in RCA: 108] [Impact Index Per Article: 15.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Boronic acid-modified alginate allows the direct formation of biocompatible hydrogels under basic conditions with remarkable injectable, self-healing and multistimuli-responsive properties.
Collapse
Affiliation(s)
- Asja Pettignano
- Institute of Organic Chemistry
- University of Regensburg
- Universitaetsstr. 31
- 93040 Regensburg
- Germany
| | - Santiago Grijalvo
- IQAC-CSIC
- Jordi Girona 18-26
- Barcelona 08034
- Spain
- Biomedical Research Networking Center in Bioengineering
| | - Marleen Häring
- Institute of Organic Chemistry
- University of Regensburg
- Universitaetsstr. 31
- 93040 Regensburg
- Germany
| | - Ramon Eritja
- IQAC-CSIC
- Jordi Girona 18-26
- Barcelona 08034
- Spain
- Biomedical Research Networking Center in Bioengineering
| | - Nathalie Tanchoux
- Institut Charles Gerhardt
- UMR 5253 CNRS/UM/ENSCM
- Matériaux Avancés pour la Catalyse et la Santé
- ENSCM
- 8 rue Ecole Normale
| | - Françoise Quignard
- Institut Charles Gerhardt
- UMR 5253 CNRS/UM/ENSCM
- Matériaux Avancés pour la Catalyse et la Santé
- ENSCM
- 8 rue Ecole Normale
| | - David Díaz Díaz
- Institute of Organic Chemistry
- University of Regensburg
- Universitaetsstr. 31
- 93040 Regensburg
- Germany
| |
Collapse
|
21
|
Vancoillie G, Hoogenboom R. Responsive Boronic Acid-Decorated (Co)polymers: From Glucose Sensors to Autonomous Drug Delivery. SENSORS 2016; 16:s16101736. [PMID: 27775572 PMCID: PMC5087521 DOI: 10.3390/s16101736] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/04/2016] [Revised: 10/11/2016] [Accepted: 10/13/2016] [Indexed: 01/03/2023]
Abstract
Boronic acid-containing (co)polymers have fascinated researchers for decades, garnering attention for their unique responsiveness toward 1,2- and 1,3-diols, including saccharides and nucleotides. The applications of materials that exert this property are manifold including sensing, but also self-regulated drug delivery systems through responsive membranes or micelles. In this review, some of the main applications of boronic acid containing (co)polymers are discussed focusing on the role of the boronic acid group in the response mechanism. We hope that this summary, which highlights the importance and potential of boronic acid-decorated polymeric materials, will inspire further research within this interesting field of responsive polymers and polymeric materials.
Collapse
Affiliation(s)
- Gertjan Vancoillie
- Supramolecular Chemistry Group, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, Ghent 9000, Belgium.
| | - Richard Hoogenboom
- Supramolecular Chemistry Group, Department of Organic and Macromolecular Chemistry, Ghent University, Krijgslaan 281 S4, Ghent 9000, Belgium.
| |
Collapse
|
22
|
Yuan J, Li H, Gao Y, Yang D, Liu Y, Li H, Lu S. Well-defined polyurethane-graft-poly(N,N-dimethylacrylamide) copolymer with a controlled graft density and grafted chain length: synthesis and its application as a Pickering emulsion. RSC Adv 2016. [DOI: 10.1039/c6ra08512a] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Well-defined PU-g-PDMA graft copolymers with controlled graft densities and grafted chain lengths could be facilely synthesized by combining the polyaddition reaction with the RAFT polymerization.
Collapse
Affiliation(s)
- Jun Yuan
- College of Chemistry
- Xiangtan University
- Xiangtan
- China
| | - Heng Li
- College of Chemistry
- Xiangtan University
- Xiangtan
- China
| | - Yong Gao
- College of Chemistry
- Xiangtan University
- Xiangtan
- China
- Key Laboratory of Polymeric Materials & Application Technology of Hunan Province
| | | | - Yijiang Liu
- College of Chemistry
- Xiangtan University
- Xiangtan
- China
| | - Huaming Li
- College of Chemistry
- Xiangtan University
- Xiangtan
- China
- Key Laboratory of Polymeric Materials & Application Technology of Hunan Province
| | - Shaorong Lu
- Key Laboratory of New Processing Technology for Nonferrous Metals and Materials
- Ministry of Education
- School of Material Science and Engineering
- Guilin University of Technology
- Guilin 541004
| |
Collapse
|
23
|
Vancoillie G, Hoogenboom R. Synthesis and polymerization of boronic acid containing monomers. Polym Chem 2016. [DOI: 10.1039/c6py00775a] [Citation(s) in RCA: 59] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
This mini-review summarizes the most commonly used methods for the synthesis of phenylboronic acid-(co)polymers ranging from simple straightforward polymerization to complex post-polymerization modification.
Collapse
Affiliation(s)
- Gertjan Vancoillie
- Supramolecular Chemistry Group
- Department of Organic and Macromolecular Chemistry
- 9000 Ghent
- Belgium
| | - Richard Hoogenboom
- Supramolecular Chemistry Group
- Department of Organic and Macromolecular Chemistry
- 9000 Ghent
- Belgium
| |
Collapse
|
24
|
Brooks WLA, Sumerlin BS. Synthesis and Applications of Boronic Acid-Containing Polymers: From Materials to Medicine. Chem Rev 2015; 116:1375-97. [DOI: 10.1021/acs.chemrev.5b00300] [Citation(s) in RCA: 552] [Impact Index Per Article: 61.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/17/2023]
Affiliation(s)
- William L. A. Brooks
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| | - Brent S. Sumerlin
- George & Josephine Butler Polymer Research Laboratory, Center for Macromolecular Science & Engineering, Department of Chemistry, University of Florida, Gainesville, Florida 32611-7200, United States
| |
Collapse
|
25
|
Kubo Y, Nishiyabu R, James TD. Hierarchical supramolecules and organization using boronic acid building blocks. Chem Commun (Camb) 2015; 51:2005-20. [DOI: 10.1039/c4cc07712a] [Citation(s) in RCA: 118] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Current progress on hierarchical supramolecules using boronic acids has been highlighted in this feature article. The feasibility of the structure-directing ability is fully discussed from the standpoint of the generation of new smart materials.
Collapse
Affiliation(s)
- Yuji Kubo
- Department of Applied Chemistry
- Graduate School of Urban Environmental Sciences
- Tokyo Metropolitan University
- Hachioji
- Japan
| | - Ryuhei Nishiyabu
- Department of Applied Chemistry
- Graduate School of Urban Environmental Sciences
- Tokyo Metropolitan University
- Hachioji
- Japan
| | | |
Collapse
|
26
|
Mucoadhesive polymers in the design of nano-drug delivery systems for administration by non-parenteral routes: A review. Prog Polym Sci 2014. [DOI: 10.1016/j.progpolymsci.2014.07.010] [Citation(s) in RCA: 333] [Impact Index Per Article: 33.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
|
27
|
Tarus D, Hachet E, Messager L, Catargi B, Ravaine V, Auzély-Velty R. Readily Prepared Dynamic Hydrogels by Combining Phenyl Boronic Acid- and Maltose-Modified Anionic Polysaccharides at Neutral pH. Macromol Rapid Commun 2014; 35:2089-95. [DOI: 10.1002/marc.201400477] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2014] [Revised: 10/07/2014] [Indexed: 11/07/2022]
Affiliation(s)
- Dominte Tarus
- University Grenoble Alpes, CERMAV; F-38000 Grenoble France
- CNRS, CERMAV; F-38000 Grenoble France
| | - Emilie Hachet
- University Grenoble Alpes, CERMAV; F-38000 Grenoble France
- CNRS, CERMAV; F-38000 Grenoble France
| | - Léa Messager
- Université de Bordeaux, ISM, UMR 5255, ENSCBP; 16 avenue Pey Berland 33607 Pessac France
| | - Bogdan Catargi
- CBMN UMR 5248; Université Bordeaux, Allée de Saint-Hilaire; 33600 Pessac France
| | - Valérie Ravaine
- Université de Bordeaux, ISM, UMR 5255, ENSCBP; 16 avenue Pey Berland 33607 Pessac France
| | - Rachel Auzély-Velty
- University Grenoble Alpes, CERMAV; F-38000 Grenoble France
- CNRS, CERMAV; F-38000 Grenoble France
| |
Collapse
|
28
|
Yang T, Ji R, Deng XX, Du FS, Li ZC. Glucose-responsive hydrogels based on dynamic covalent chemistry and inclusion complexation. SOFT MATTER 2014; 10:2671-2678. [PMID: 24647364 DOI: 10.1039/c3sm53059k] [Citation(s) in RCA: 62] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
A novel glucose-responsive hydrogel system based on dynamic covalent chemistry and inclusion complexation was described. Hydrogels are formed by simply mixing the solutions of three components: poly(ethylene oxide)-b-poly vinyl alcohol (PEO-b-PVA) diblock polymer, α-cyclodextrin (α-CD) and phenylboronic acid (PBA)-terminated PEO crosslinker. Dynamic covalent bonds between PVA and PBA provide sugar-responsive crosslinking, and the inclusion complexation between PEO and α-CD can promote hydrogel formation and enhance hydrogel stability. The ratios of the three components have a remarkable effect on the gelation time and the mechanical properties of the final gels. In rheological measurements, the hydrogels are demonstrated to possess solid-like behaviour and good structural recovery ability after yielding. The sugar-responsiveness of the hydrogels was examined by protein loading and release experiments, and the results indicate that this property is also dependent on the compositions of the gels; at a proper component ratio, a new glucose-responsive hydrogel system operating at physiological pH can be obtained. The combination of good biocompatibility of the three components and the easy preparation of hydrogels with tunable glucose-responsiveness may enable an alternative design of hydrogel systems that finds potential applications in biomedical and pharmaceutical fields, such as treatment of diabetes.
Collapse
Affiliation(s)
- Ting Yang
- Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Polymer Chemistry & Physics of Ministry of Education, Department of Polymer Science & Engineering, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China.
| | | | | | | | | |
Collapse
|
29
|
Lin M, Sun P, Chen G, Jiang M. The glyco-stereoisomerism effect on hydrogelation of polymers interacting via dynamic covalent bonds. Chem Commun (Camb) 2014; 50:9779-82. [DOI: 10.1039/c4cc04735d] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
This work explores, for the first time, the stereoisomerism effect of sugar units of glycopolymers on hydrogelation.
Collapse
Affiliation(s)
- Mingchang Lin
- The State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science
- Fudan University
- Shanghai, 200433 China
| | - Pengfei Sun
- The State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science
- Fudan University
- Shanghai, 200433 China
| | - Guosong Chen
- The State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science
- Fudan University
- Shanghai, 200433 China
| | - Ming Jiang
- The State Key Laboratory of Molecular Engineering of Polymers and Department of Macromolecular Science
- Fudan University
- Shanghai, 200433 China
| |
Collapse
|
30
|
Guo H, Guo Q, Chu T, Zhang X, Wu Z, Yu D. Glucose-sensitive polyelectrolyte nanocapsules based on layer-by-layer technique for protein drug delivery. JOURNAL OF MATERIALS SCIENCE. MATERIALS IN MEDICINE 2014; 25:121-129. [PMID: 24068543 DOI: 10.1007/s10856-013-5055-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/02/2013] [Accepted: 09/16/2013] [Indexed: 06/02/2023]
Abstract
The glucose-responsive nanocapsules [CS-NAC/p(GAMA-r-AAPBA)] were readily fabricated with modified chitosan (CS-NAC) and random glycopolymer poly(D-gluconamidoethyl methacrylate-r-3-acrylamidophenylboronic acid) p(GAMA-r-AAPBA) as the alternant multilayered polyelectrolyte hybrid shell via layer-by-layer self-assembly after etching the amino functionalized SiO2 spheres by NH4F/HF. The spherical and hollow structure of nanocapsules was confirmed by TEM analysis and there was no clear collapse found after removal of the sacrificial cores. The reversible zeta potential changes of the nanocapsule materials evaluated the reversible glucose sensitivity. Besides, this system demonstrated a good capacity for encapsulation and loading insulin entrapped in nanocapsules as model protein drug. A good biocompatibility of the material was confirmed by the cell viability. In vitro release of insulin experiments revealed that no obvious release was found in acidic condition and the release could be normally conducted at physiological pH. These results implied that it was feasible for nanocapsules to be used in controlled release drug delivery system.
Collapse
Affiliation(s)
- Honglei Guo
- Key Laboratory of Hormones and Development (Ministry of Health), Metabolic Diseases Hospital, Tianjin Medical University, Tianjin, 300070, China
| | | | | | | | | | | |
Collapse
|
31
|
High-water-content mouldable polyvinyl alcohol-borax hydrogels reinforced by well-dispersed cellulose nanoparticles: dynamic rheological properties and hydrogel formation mechanism. Carbohydr Polym 2013; 102:306-16. [PMID: 24507286 DOI: 10.1016/j.carbpol.2013.11.045] [Citation(s) in RCA: 128] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Revised: 10/19/2013] [Accepted: 11/27/2013] [Indexed: 11/21/2022]
Abstract
Cellulose nanoparticle (CNP) reinforced polyvinyl alcohol-borax (PB) hydrogels were produced via a facile approach in an aqueous system. The effects of particle size, aspect ratio, crystal structure, and surface charge of CNPs on the rheological properties of the composite hydrogels were investigated. The rheological measurements confirmed the incorporation of well-dispersed CNPs to PB system significantly enhanced the viscoelasticity and stiffness of hydrogels. The obtained free-standing, high elasticity and mouldable hydrogels exhibited self-recovery under continuous step strain and thermo-reversibility under temperature sweep. With the addition of cellulose I nanofibers, a 19-fold increase in the high-frequency plateau of storage modulus was obtained compared with that of the pure PB. CNPs acted as multifunctional crosslinking agents and nanofillers to physically and chemically bridge the 3D network hydrogel. The plausible mechanism for the multi-complexation between CNPs, polyvinyl alcohol and borax was proposed to understand the relationship between the 3D network and hydrogel properties.
Collapse
|
32
|
Li W, Liu M, Chen H, Xu J, Gao Y, Li H. Phenylboronate-diol crosslinked polymer/SWCNT hybrid gels with reversible sol-gel transition. POLYM ADVAN TECHNOL 2013. [DOI: 10.1002/pat.3228] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Wenjun Li
- College of Chemistry; Xiangtan University; Xiangtan 411105 Hunan Province China
| | - Minna Liu
- College of Chemistry; Xiangtan University; Xiangtan 411105 Hunan Province China
| | - Hongbiao Chen
- College of Chemistry; Xiangtan University; Xiangtan 411105 Hunan Province China
| | - Jiao Xu
- College of Chemistry; Xiangtan University; Xiangtan 411105 Hunan Province China
| | - Yong Gao
- College of Chemistry; Xiangtan University; Xiangtan 411105 Hunan Province China
| | - Huaming Li
- College of Chemistry; Xiangtan University; Xiangtan 411105 Hunan Province China
- Key Laboratory of Polymeric Materials and Application Technology of Hunan Province, Key Laboratory of Advanced Functional Polymeric Materials of College of Hunan Province, and Key Lab of Environment-Friendly Chemistry and Application in Ministry of Education; Xiangtan University; Xiangtan 411105 Hunan Province China
| |
Collapse
|
33
|
Reddy RM, Srivastava A, Kumar A. Monosaccharide-Responsive Phenylboronate-Polyol Cell Scaffolds for Cell Sheet and Tissue Engineering Applications. PLoS One 2013; 8:e77861. [PMID: 24167587 PMCID: PMC3805603 DOI: 10.1371/journal.pone.0077861] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2013] [Accepted: 09/04/2013] [Indexed: 11/18/2022] Open
Affiliation(s)
- Rachamalla Maheedhar Reddy
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, India
| | - Akshay Srivastava
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, India
| | - Ashok Kumar
- Department of Biological Sciences and Bioengineering, Indian Institute of Technology Kanpur, Kanpur, India
- * E-mail:
| |
Collapse
|
34
|
Aydoğan C, Yılmaz F, Denizli A. Cation exchange/hydrophobic interaction monolithic chromatography of small molecules and proteins by nano liquid chromatography†. J Sep Sci 2013; 36:1685-92. [DOI: 10.1002/jssc.201300089] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/25/2013] [Revised: 03/18/2013] [Accepted: 03/18/2013] [Indexed: 12/19/2022]
Affiliation(s)
- Cemil Aydoğan
- Department of Chemistry; Biochemistry Division, Hacettepe University; Ankara; Turkey
| | - Fatma Yılmaz
- Vocational School of Gerede Chemistry Technology Division; Abant Izzet Baysal University; Bolu; Turkey
| | - Adil Denizli
- Department of Chemistry; Biochemistry Division, Hacettepe University; Ankara; Turkey
| |
Collapse
|
35
|
Zhao L, Xiao C, Ding J, He P, Tang Z, Pang X, Zhuang X, Chen X. Facile one-pot synthesis of glucose-sensitive nanogel via thiol-ene click chemistry for self-regulated drug delivery. Acta Biomater 2013; 9:6535-43. [PMID: 23403168 DOI: 10.1016/j.actbio.2013.01.040] [Citation(s) in RCA: 55] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/27/2012] [Revised: 01/28/2013] [Accepted: 01/31/2013] [Indexed: 11/16/2022]
Abstract
A novel glucose-sensitive nanogel was conveniently prepared through one-pot thiol-ene copolymerization of pentaerythritol tetra(3-mercaptopropionate), poly(ethylene glycol) diacrylate, methoxyl poly(ethylene glycol) acrylate and N-acryloyl-3-aminophenylboronic acid. The formation of core-shell nanogel was verified by proton nuclear magnetic resonance, dynamic laser scattering (DLS) and transmission electron microscopy. The successful incorporation of phenylboronic acid (PBA) in the nanogel was confirmed through Fourier transform infrared spectroscopy, inductively coupled plasma mass spectrometry and fluorescence technology. Owing to the presence of PBA, the nanogel exhibited high glucose sensitivity in phosphate-buffered saline determined by DLS and fluorescence technology. The increased amount of glucose causes an increase in the hydrodrodynamic radius and a decrease in the fluorescence intensity of PBA-alizarin red S (ARS) complex in the nanogel at pH 7.4 because of the competitive substitution of ARS to form the hydrophilic PBA-glucose complex. ARS and insulin were loaded into this glucose-sensitive nanogel. In vitro release profiles revealed that the drug release from the nanogel could be triggered by the presence of glucose. The more glucose in the release medium, the more drug was released and the faster the release rate. Furthermore, in vitro methyl thiazolyl tetrazolium assay, lactate dehydrogenase assay and hemolysis test suggested that the nanogel was biocompatible. Therefore, the PBA-incorporated nanogel with high glucose-sensitivity and good biocompatibility may have great potential for self-regulated drug release.
Collapse
Affiliation(s)
- Li Zhao
- Key Laboratory of Polymer Ecomaterials, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130022, People's Republic of China
| | | | | | | | | | | | | | | |
Collapse
|
36
|
Pelton R, Cui Y, Zhang D, Chen Y, Thompson KL, Armes SP, Brook MA. Facile phenylboronate modification of silica by a silaneboronate. LANGMUIR : THE ACS JOURNAL OF SURFACES AND COLLOIDS 2013; 29:594-598. [PMID: 23268744 DOI: 10.1021/la3040837] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Macroscopic and colloidal silica surfaces were readily modified with alkoxysilaneboronate, IV, yielding silica surfaces with covalently bonded phenylboronic acid groups. XPS and neutron activation confirmed the presence of boron. The ability of these surfaces to specifically interact with polyols was demonstrated with polyol-coated latex and ARS, a dye that specifically couples to boronic acid groups immobilized on colloidal or macroscopic silica. This is a new, direct approach for introduction of phenylboronic acid groups onto silica surfaces.
Collapse
Affiliation(s)
- Robert Pelton
- Department of Chemical Engineering, McMaster University, Hamilton, Ontario, Canada.
| | | | | | | | | | | | | |
Collapse
|
37
|
Guan Y, Zhang Y. Boronic acid-containing hydrogels: synthesis and their applications. Chem Soc Rev 2013; 42:8106-21. [DOI: 10.1039/c3cs60152h] [Citation(s) in RCA: 313] [Impact Index Per Article: 28.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
38
|
Lin X, Nishio K, Konno T, Ishihara K. The effect of the encapsulation of bacteria in redox phospholipid polymer hydrogels on electron transfer efficiency in living cell-based devices. Biomaterials 2012; 33:8221-7. [DOI: 10.1016/j.biomaterials.2012.08.035] [Citation(s) in RCA: 40] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2012] [Accepted: 08/15/2012] [Indexed: 01/28/2023]
|
39
|
Ivanov AE, Solodukhina NM, Nilsson L, Nikitin MP, Nikitin PI, Zubov VP, Vikhrov AA. Binding of mucin to water-soluble and surface-grafted boronate-containing polymers. POLYMER SCIENCE SERIES A 2012. [DOI: 10.1134/s0965545x12010026] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
|
40
|
Xu J, Yang D, Li W, Gao Y, Chen H, Li H. Phenylboronate-diol crosslinked polymer gels with reversible sol-gel transition. POLYMER 2011. [DOI: 10.1016/j.polymer.2011.07.015] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
|
41
|
Thammakhet C, Thavarungkul P, Kanatharana P. Development of an on-column affinity smart polymer gel glucose sensor. Anal Chim Acta 2011; 695:105-12. [DOI: 10.1016/j.aca.2011.03.062] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/06/2011] [Revised: 03/28/2011] [Accepted: 03/30/2011] [Indexed: 11/16/2022]
|
42
|
Cakal C, Ferrance JP, Landers JP, Caglar P. Microchip extraction of catecholamines using a boronic acid functional affinity monolith. Anal Chim Acta 2011; 690:94-100. [DOI: 10.1016/j.aca.2011.02.009] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2010] [Revised: 01/29/2011] [Accepted: 02/02/2011] [Indexed: 11/24/2022]
|
43
|
Ivanov AE, Solodukhina N, Wahlgren M, Nilsson L, Vikhrov AA, Nikitin MP, Orlov AV, Nikitin PI, Kuzimenkova MV, Zubov VP. Reversible conformational transitions of a polymer brush containing boronic acid and its interaction with mucin glycoprotein. Macromol Biosci 2010; 11:275-84. [PMID: 21136536 DOI: 10.1002/mabi.201000295] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2010] [Revised: 09/09/2010] [Indexed: 11/06/2022]
Abstract
Reversible changes of the height of a polymer brush containing phenylboronic acid were studied. The polymer brush thickness underwent reversible changes of 0.5-1 nm, in response to the changes in composition of the contacting aqueous phase from deionized water to bicarbonate buffer and vice versa, apparently due to the conformational transition of the weak polyelectrolyte to the more extended electrically charged state. Adsorption of mucin glycoprotein to the polymer brush took place due to boronate/sugar interactions between the glycoprotein and the graft copolymer and resulted in further increase of the brush height by ca. 1.5 nm, as observed by means of spectral correlation spectroscopy and ellipsometry.
Collapse
|
44
|
Wagner CB, Studer A. Synthesis of Macro(alkoxyamines) via Hydroboration of Polyolefins with Subsequent Nitroxide Oxidation for Controlled NMP. MACROMOL CHEM PHYS 2010. [DOI: 10.1002/macp.201000420] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
|
45
|
Wagner CB, Studer A. Oxidation of Alkylcatecholboranes with Functionalized Nitroxides for Chemical Modification of Cyclohexene, Perallylated Polyglycerol and of Poly(butadiene). European J Org Chem 2010. [DOI: 10.1002/ejoc.201001043] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
|
46
|
Cakal C, Ferrance JP, Landers JP, Caglar P. Development of a micro-total analysis system (μ-TAS) for the determination of catecholamines. Anal Bioanal Chem 2010; 398:1909-17. [DOI: 10.1007/s00216-010-3998-8] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2010] [Revised: 06/28/2010] [Accepted: 07/01/2010] [Indexed: 11/28/2022]
|
47
|
Xu Y, Sato K, Mawatari K, Konno T, Jang K, Ishihara K, Kitamori T. A microfluidic hydrogel capable of cell preservation without perfusion culture under cell-based assay conditions. ADVANCED MATERIALS (DEERFIELD BEACH, FLA.) 2010; 22:3017-3021. [PMID: 20503209 DOI: 10.1002/adma.201000006] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Affiliation(s)
- Yan Xu
- Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo, Tokyo 113-8656, Japan.
| | | | | | | | | | | | | |
Collapse
|
48
|
Cui C, Bonder EM, Qin Y, Jäkle F. Synthesis and solvent-dependent micellization of the amphiphilic block copolymer poly(styreneboronic acid)-block-polystyrene. ACTA ACUST UNITED AC 2010. [DOI: 10.1002/pola.24014] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
|
49
|
Ivanov AE, Kumar A, Nilsang S, Aguilar MR, Mikhalovska LI, Savina IN, Nilsson L, Scheblykin IG, Kuzimenkova MV, Galaev IY. Evaluation of boronate-containing polymer brushes and gels as substrates for carbohydrate-mediated adhesion and cultivation of animal cells. Colloids Surf B Biointerfaces 2010; 75:510-9. [DOI: 10.1016/j.colsurfb.2009.09.028] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2009] [Revised: 08/28/2009] [Accepted: 09/22/2009] [Indexed: 10/20/2022]
|
50
|
Manna U, Patil S. Borax Mediated Layer-by-Layer Self-Assembly of Neutral Poly(vinyl alcohol) and Chitosan. J Phys Chem B 2009; 113:9137-42. [DOI: 10.1021/jp9025333] [Citation(s) in RCA: 71] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Uttam Manna
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore-560012, India
| | - Satish Patil
- Solid State and Structural Chemistry Unit, Indian Institute of Science, Bangalore-560012, India
| |
Collapse
|