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Journal articles on the topic 'Hydrogel blocks'

Author: Grafiati

Published: 4 June 2021

Last updated: 4 February 2022

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1

Wheeldon, Ian R., Joshua W. Gallaway, Scott Calabrese Barton, and Scott Banta. "Bioelectrocatalytic hydrogels from electron-conducting metallopolypeptides coassembled with bifunctional enzymatic building blocks." Proceedings of the National Academy of Sciences 105, no. 40 (2008): 15275–80. http://dx.doi.org/10.1073/pnas.0805249105.

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Here, we present two bifunctional protein building blocks that coassemble to form a bioelectrocatalytic hydrogel that catalyzes the reduction of dioxygen to water. One building block, a metallopolypeptide based on a previously designed triblock polypeptide, is electron-conducting. A second building block is a chimera of artificial α-helical leucine zipper and random coil domains fused to a polyphenol oxidase, small laccase (SLAC). The metallopolypeptide has a helix–random-helix secondary structure and forms a hydrogel via tetrameric coiled coils. The helical and random domains are identical to

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2

Murphy, Robert, Shadi Kordbacheh, Dimitrios Skoulas, et al. "Three-dimensionally printable shear-thinning triblock copolypeptide hydrogels with antimicrobial potency." Biomaterials Science 9, no. 15 (2021): 5144–49. http://dx.doi.org/10.1039/d1bm00275a.

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Block sequence controlled triblock copolypeptides comprising a lysine or glutamic acid central block flanked by cysteine and tyrosine blocks combine exceptional hydrogel printability with antimicrobial properties.

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Sun, Xiaofeng, Guihua Li, Yanji Yin, Yiqiang Zhang, and Hongguang Li. "Carbon quantum dot-based fluorescent vesicles and chiral hydrogels with biosurfactant and biocompatible small molecule." Soft Matter 14, no. 34 (2018): 6983–93. http://dx.doi.org/10.1039/c8sm01155a.

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We have shown that CQDs can be good building blocks for the facile construction of fluorescent vesicles and chiral hydrogels. The hydrogel-coated silica gel plates possess good semiquantitative analytical capability for the detection of Cu<sup>2+</sup> in aqueous solutions.

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4

El-Sherbiny, Ibrahim M., and Hugh D. C. Smyth. "Smart Magnetically Responsive Hydrogel Nanoparticles Prepared by a Novel Aerosol-Assisted Method for Biomedical and Drug Delivery Applications." Journal of Nanomaterials 2011 (2011): 1–13. http://dx.doi.org/10.1155/2011/910539.

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We have developed a novel spray gelation-based method to synthesize a new series of magnetically responsive hydrogel nanoparticles for biomedical and drug delivery applications. The method is based on the production of hydrogel nanoparticles from sprayed polymeric microdroplets obtained by an air-jet nebulization process that is immediately followed by gelation in a crosslinking fluid. Oligoguluronate (G-blocks) was prepared through the partial acid hydrolysis of sodium alginate. PEG-grafted chitosan was also synthesized and characterized (FTIR, EA, and DSC). Then, magnetically responsive hydr

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Zaage, Franziska, Michael Dau, Cornelia Ganz, Bernhard Frerich, and Thomas Gerber. "Elastic Blocks: Hydrogel-Embedded Granules as Bone Grafting Substitutes." Key Engineering Materials 631 (November 2014): 414–19. http://dx.doi.org/10.4028/www.scientific.net/kem.631.414.

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NanoBone®Block is the alternative to autogenous bone blocks and offers doctors a rapid, simple operating procedure in combination with a low risk of complications. Aim of this work was to develop a bone grafting block with elastic properties for dental and orthopedic surgery which is ready to use. An easy handling has to be connected with quick regeneration. Therefore, NB granules have been combined with an elastic hydrogel carrier based on Polyvinylpyrrolidone (PVP) and silica sol. Mechanical properties were optimized for an enhanced handling by cross linking and simultaneous sterilization of

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6

Kim, Hee-Jin, Sungwoo Cho, Seung Joo Oh, Sung Gyu Shin, Hee Wook Ryu, and Jae Hyun Jeong. "Tuning the Hydrophobicity of a Hydrogel Using Self-Assembled Domains of Polymer Cross-Linkers." Materials 12, no. 10 (2019): 1635. http://dx.doi.org/10.3390/ma12101635.

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Hydrogels incorporated with hydrophobic motifs have received considerable attention to recapitulate the cellular microenvironments, specifically for the bio-mineralization of a 3D matrix. Introduction of hydrophobic molecules into a hydrogel often results in irregular arrangement of the motifs, and further phase separation of hydrophobic domains, but limited efforts have been made to resolve this challenge in developing the hydrophobically-modified hydrogel. Therefore, this study presents an advanced integrative strategy to incorporate hydrophobic domains regularly in a hydrogel using self-ass

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Luo, Fang, Zhi-Gang Qian, and Xiao-Xia Xia. "Responsive Protein Hydrogels Assembled from Spider Silk Carboxyl-Terminal Domain and Resilin Copolymers." Polymers 10, no. 8 (2018): 915. http://dx.doi.org/10.3390/polym10080915.

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Responsive protein hydrogels are known to respond to target external stimuli that cause changes in their properties, attracting considerable attention for diverse applications. Here we report the design and recombinant biosynthesis of protein copolymers via genetic fusion of repeating units of resilin with spider silk carboxyl-terminal (CT) domain. The resulting copolymers were thermoresponsive in aqueous solutions, and formed reversible hydrogels at low temperatures and irreversible hydrogels at high temperatures within minutes, a peculiar dual thermogelation feature endowed by the CT domain.

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8

Elkhoury, Kamil, Laura Sanchez-Gonzalez, Pedro Lavrador, et al. "Gelatin Methacryloyl (GelMA) Nanocomposite Hydrogels Embedding Bioactive Naringin Liposomes." Polymers 12, no. 12 (2020): 2944. http://dx.doi.org/10.3390/polym12122944.

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The development of nanocomposite hydrogels that take advantage of hierarchic building blocks is gaining increased attention due to their added functionality and numerous biomedical applications. Gathering on the unique properties of these platforms, herein we report the synthesis of bioactive nanocomposite hydrogels comprising naringin-loaded salmon-derived lecithin nanosized liposomal building blocks and gelatin methacryloyl (GelMA) macro-sized hydrogels for their embedding. This platform takes advantage of liposomes’ significant drug loading capacity and their role in hydrogel network reinfo

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9

Zhu, Congcong, and Christopher J. Bettinger. "Light-induced remodeling of physically crosslinked hydrogels using near-IR wavelengths." J. Mater. Chem. B 2, no. 12 (2014): 1613–18. http://dx.doi.org/10.1039/c3tb21689f.

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Light-induced disintegration of physically crosslinked hydrogel networks has been demonstrated by selective photodeprotection of self-assembled triblock copolymers. Physical crosslinks can be disrupted through uncaging of coumarin-based blocks using single- and two-photon absorption mechanisms. Photodegradable hydrogels exhibit promising applications as biomedical materials that can be manipulated using light at tissue-transparent wavelengths.

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10

Liu, Yin, Hongwu Zhang, Jianhua Wang, and Yonggang Zheng. "Anisotropic Swelling in Fiber-Reinforced Hydrogels: An Incremental Finite Element Method and Its Applications in Design of Bilayer Structures." International Journal of Applied Mechanics 08, no. 07 (2016): 1640003. http://dx.doi.org/10.1142/s1758825116400032.

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In this paper, we present a theoretical and finite element framework for the inhomogeneous swelling of fiber-reinforced anisotropic hydrogels and investigate the effects of their orientations and moduli on the swelling behaviors of hydrogel bilayers. The effects of fibers on swelling are incorporated into the constitutive equations by introducing the corresponding energy contribution, expressed as the invariants related to the deformation of fibers, into the Flory–Rehner model. Unified constitutive equations and corresponding tangent moduli for anisotropic hydrogels reinforced with two familie

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11

Jia, Fei, Jake Song, Joshua M. Kubiak, et al. "Brush Polymers as Nanoscale Building Blocks for Hydrogel Synthesis." Chemistry of Materials 33, no. 14 (2021): 5748–56. http://dx.doi.org/10.1021/acs.chemmater.1c01585.

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12

Xu, Zhenyu, Yongsen Zhou, Baoping Zhang, Chao Zhang, Jianfeng Wang, and Zuankai Wang. "Recent Progress on Plant-Inspired Soft Robotics with Hydrogel Building Blocks: Fabrication, Actuation and Application." Micromachines 12, no. 6 (2021): 608. http://dx.doi.org/10.3390/mi12060608.

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Millions of years’ evolution has imparted life on earth with excellent environment adaptability. Of particular interest to scientists are some plants capable of macroscopically and reversibly altering their morphological and mechanical properties in response to external stimuli from the surrounding environment. These intriguing natural phenomena and underlying actuation mechanisms have provided important design guidance and principles for man-made soft robotic systems. Constructing bio-inspired soft robotic systems with effective actuation requires the efficient supply of mechanical energy gen

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13

Xin, Shangjing, David Chimene, Jay E. Garza, Akhilesh K. Gaharwar, and Daniel L. Alge. "Clickable PEG hydrogel microspheres as building blocks for 3D bioprinting." Biomaterials Science 7, no. 3 (2019): 1179–87. http://dx.doi.org/10.1039/c8bm01286e.

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14

Chiang, Min-Yu, Yao-Wen Hsu, Hsin-Yi Hsieh, San-Yuan Chen, and Shih-Kang Fan. "Constructing 3D heterogeneous hydrogels from electrically manipulated prepolymer droplets and crosslinked microgels." Science Advances 2, no. 10 (2016): e1600964. http://dx.doi.org/10.1126/sciadv.1600964.

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Formation of multifunctional, heterogeneous, and encoded hydrogel building blocks, or microgels, by crosslinking and assembly of microgels are two essential steps in establishing hierarchical, complicated, and three-dimensional (3D) hydrogel architectures that recapitulate natural and biological structures or originate new materials by design. However, for the variety of the hydrogel materials crosslinked differently and for the varied scales of microgels and architectures, the formation and assembly processes are usually performed separately, which increases the manufacturing complexity of de

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15

Lee, Tae Hee, Young Jun Kim, Woo Sun Rou, and Hyuk Soo Eun. "Fabrication of Formalin-Fixed, Paraffin-Embedded (FFPE) Circulating Tumor Cell (CTC) Block Using a Hydrogel Core-Mediated Method." Micromachines 12, no. 9 (2021): 1128. http://dx.doi.org/10.3390/mi12091128.

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Circulating tumor cells (CTCs) are extremely low-frequency cells in the bloodstream. As those cells have detached from the primary tumor tissues and it circulates throughout the whole body, they are considered as promising diagnostic biomarkers for clinical application. However, the analysis of CTC is often restricted due to their rarity and heterogeneity, as well as their short-term presence. Here we proposed formalin-fixed, paraffin-embedded (FFPE) CTC block method, in combination manner with the hydrogel core-mediated CTC accumulation and conventional paraffin tissue block preparation. The

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16

Liu, Kwei-Yu, Daniel G. Abebe, Elizabeth Rachel Wiley, and Tomoko Fujiwara. "Characterization and Optimization of PLA Stereocomplexed Hydrogels for Local Gene Delivery Systems." Polymers 11, no. 5 (2019): 796. http://dx.doi.org/10.3390/polym11050796.

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Localized gene delivery still remains as a challenging therapeutic method due to the multiple hurdles to overcome. One of the significant factors is a development of a matrix to carry and safely deliver genes at the local site in a controlled manner and then exit and disintegrate harmlessly. This report describes the structural and mechanistic studies on the in-situ forming hydrogels composed of the PEI/DNA multi-layered micelles to apply for gene therapy. The stereocomplexation-driven hydrogel systems from the DNA-loaded and DNA-free PLA-PEG-PLA triblock copolymer micelles that include enanti

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17

Zhang, Weiwei, Guoyou Huang, Kelvin Ng, et al. "Engineering ellipsoidal cap-like hydrogel particles as building blocks or sacrificial templates for three-dimensional cell culture." Biomaterials Science 6, no. 4 (2018): 885–92. http://dx.doi.org/10.1039/c7bm01186e.

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18

Yuasa, Hirohiko, Kouichi Asakura, and Taisuke Banno. "Sequential dynamic structuralisation by in situ production of supramolecular building blocks." Chemical Communications 53, no. 61 (2017): 8553–56. http://dx.doi.org/10.1039/c7cc04301e.

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19

Yao, Chen, Zhuang Liu, Chao Yang, et al. "Smart Hydrogels with Inhomogeneous Structures Assembled Using Nanoclay-Cross-Linked Hydrogel Subunits as Building Blocks." ACS Applied Materials & Interfaces 8, no. 33 (2016): 21721–30. http://dx.doi.org/10.1021/acsami.6b07713.

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20

Makarenkov, D. A., E. M. Fedorova, V. A. Buchryakova, S. L. Lobastov, V. I. Nazarov, and V. S. Boldyrev. "Investigating the Process of Producing Composite Hydrogel Particle Slurry." Herald of the Bauman Moscow State Technical University. Series Natural Sciences, no. 4 (91) (August 2020): 123–37. http://dx.doi.org/10.18698/1812-3368-2020-4-123-137.

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The paper presents comprehensive investigation results concerning obtaining a composite hydrogel material in the form of an aqueous slurry. We considered the issue of grinding hydrogel in water so as to obtain an aqueous slurry of hydrogel particles featuring the desired particle size distribution. We selected polyacrylamide to be the composite hydrogel material and used an anti-Stokes phosphor as a filler. We describe a multi-stage method for producing hydrogel, a coarse grinding process for hydrogel blocks, and a fine grinding technology employing an immersion disperser. We obtained slurries

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21

Valentin, Thomas M., Eric M. DuBois, Catherine E. Machnicki, Dhananjay Bhaskar, Francis R. Cui, and Ian Y. Wong. "3D printed self-adhesive PEGDA–PAA hydrogels as modular components for soft actuators and microfluidics." Polymer Chemistry 10, no. 16 (2019): 2015–28. http://dx.doi.org/10.1039/c9py00211a.

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22

Avila-Salas, Fabián, Yeray Rodriguez Nuñez, Adolfo Marican, et al. "Rational Development of a Novel Hydrogel as a pH-Sensitive Controlled Release System for Nifedipine." Polymers 10, no. 7 (2018): 806. http://dx.doi.org/10.3390/polym10070806.

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This work depicts the rational development (in-silico design, synthesis, characterization and in-vitro evaluation) of polyvinyl alcohol hydrogels (PVAH) cross-linked with maleic acid (MA) and linked to γ-cyclodextrin molecules (γ-CDPVAHMA) as systems for the controlled and sustained release of nifedipine (NFD). Through computational studies, the structural blocks (PVA chain + dicarboxylic acid + γ-CD) of 20 different hydrogels were evaluated to test their interaction energies (ΔE) with NFD. According to the ΔE obtained, the hydrogel cross-linked with maleic acid was selected. To characterize t

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23

Miramond, Thomas, E. Aguado, E. Goyenvalle, Pascal Borget, Serge Baroth, and G. Daculsi. "In Vivo Comparative Study of Two Injectable/Moldable Calcium Phosphate Bioceramics." Key Engineering Materials 529-530 (November 2012): 291–95. http://dx.doi.org/10.4028/www.scientific.net/kem.529-530.291.

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Calcium phosphate bioceramic granules associated with hydrosoluble polymers formed putties currently more used in clinical applications as they are easy to handle (injectability, moldability). In this study, 2 kinds of materials were tested in rabbit bone defects. The first one is InOss (Biomatlante), a microporous biphasic CaP granules (BCP, HA/TCP mixture) with polysaccharidic hydrogel; and the second one is Actifuse ABX (Baxter/Apatech), pure hydroxyapatite granules containing silicate (HA-Si) with blocks copolymer hydrogel (poloxamer), . The aim of this study was to compare osteogenic prop

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Lyu, Shanshan, Jing Fang, Tianyu Duan, Linglan Fu, Junqiu Liu, and Hongbin Li. "Optically controlled reversible protein hydrogels based on photoswitchable fluorescent protein Dronpa." Chemical Communications 53, no. 100 (2017): 13375–78. http://dx.doi.org/10.1039/c7cc06991j.

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Exploiting the optically controlled association and dissociation behavior of a photoswitchable fluorescent protein, Dronpa145N, here we demonstrate the engineering of an optically switchable reversible protein hydrogel using Dronpa145N-based protein building blocks.

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25

Kascholke, Christian, Tina Loth, Caroline Kohn-Polster, et al. "Dual-Functional Hydrazide-Reactive and Anhydride-Containing Oligomeric Hydrogel Building Blocks." Biomacromolecules 18, no. 3 (2017): 683–94. http://dx.doi.org/10.1021/acs.biomac.6b01355.

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Ding, Hongyao, Xiaoxu Liang, Si Yu Zheng, Qiao Wang, Zongjin Li, and Guoxing Sun. "Actuators assembled from hydrogel blocks of various shapes via condensation reactions." Materials Chemistry and Physics 253 (October 2020): 123332. http://dx.doi.org/10.1016/j.matchemphys.2020.123332.

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27

da Silva, Marcelo A., Samuel Lenton, Matthew Hughes, David J. Brockwell, and Lorna Dougan. "Assessing the Potential of Folded Globular Polyproteins As Hydrogel Building Blocks." Biomacromolecules 18, no. 2 (2017): 636–46. http://dx.doi.org/10.1021/acs.biomac.6b01877.

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28

Liang, Yongzhi, Jinqiao Xue, Binyang Du, and Jingjing Nie. "Ultrastiff, Tough, and Healable Ionic–Hydrogen Bond Cross-Linked Hydrogels and Their Uses as Building Blocks To Construct Complex Hydrogel Structures." ACS Applied Materials & Interfaces 11, no. 5 (2019): 5441–54. http://dx.doi.org/10.1021/acsami.8b20520.

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29

Sher, Praveen, Clara R. Correia, Rui R. Costa, and João F. Mano. "Compartmentalized bioencapsulated liquefied 3D macro-construct by perfusion-based layer-by-layer technique." RSC Advances 5, no. 4 (2015): 2511–16. http://dx.doi.org/10.1039/c4ra11674g.

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A novel biofabrication process via perfusion-based LbL technique for bioencapsulated hydrogel beads as building blocks to produce freeform 3D construct with controllable switching of a solid to liquefied microenvironment for use in TE/organ printing.

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Melo, Raphael AC, Marçal HA Jorge, Adriel Bortolin, Leonardo S. Boiteux, Caue R. Oliveira, and José M. Marconcini. "Growth of tomato seedlings in substrates containing a nanocomposite hydrogel with calcium montmorillonite (NC-MMt)." Horticultura Brasileira 37, no. 2 (2019): 199–203. http://dx.doi.org/10.1590/s0102-053620190210.

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ABSTRACT The correct use of hydrogels in some situations can increase seedling survival rates, plant growth, and the water-retention capacity of the growing medium. A technique for the production of a nanocomposite hydrogel using calcium montmorillonite (NC-MMt) was recently developed. However, additional research is necessary in order to validate this innovative input, particularly for the production of vegetable crops seedlings. In this context, the main objective of the present study was to evaluate the growth and development of seedlings, tomato hybrid ‘BRS Nagai’, in substrates containing

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31

Juriga, Dávid, Evelin Sipos, Orsolya Hegedűs, et al. "Fully amino acid-based hydrogel as potential scaffold for cell culturing and drug delivery." Beilstein Journal of Nanotechnology 10 (December 27, 2019): 2579–93. http://dx.doi.org/10.3762/bjnano.10.249.

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Polymer hydrogels are ideal scaffolds for both tissue engineering and drug delivery. A great advantage of poly(amino acid)-based hydrogels is their high similarity to natural proteins. However, their expensive and complicated synthesis often limits their application. The use of poly(aspartic acid) (PASP) seems an appropriate solution for this problem due to the relatively cheap and simple synthesis of PASP. Using amino acids not only as building blocks in the polymer backbone but also as cross-linkers can improve the biocompatibility and the biodegradability of the hydrogel. In this paper, PAS

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Liu, Chen, Jialun Han, Yuxuan Pei, and Jie Du. "Aptamer Functionalized DNA Hydrogel for Wise-Stage Controlled Protein Release." Applied Sciences 8, no. 10 (2018): 1941. http://dx.doi.org/10.3390/app8101941.

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With the simple functionalization method and good biocompatibility, an aptamer-integrated DNA hydrogel is used as the protein delivery system with an adjustable release rate and time by using complementary sequences (CSs) as the biomolecular trigger. The aptamer-functionalized DNA hydrogel was prepared via a one-pot self-assembly process from two kinds of DNA building blocks (X-shaped and L-shaped DNA units) and a single-stranded aptamer. The gelling process was achieved under physiological conditions within one minute. In the absence of the triggering CSs, the aptamer grafted in the hydrogel

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Xu, Chunyu, and Jindřich Kopeček. "Genetically Engineered Block Copolymers: Influence of the Length and Structure of the Coiled-Coil Blocks on Hydrogel Self-Assembly." Pharmaceutical Research 25, no. 3 (2007): 674–82. http://dx.doi.org/10.1007/s11095-007-9343-z.

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Xing, Zhongyang, Alessio Caciagli, Tianyang Cao, et al. "Microrheology of DNA hydrogels." Proceedings of the National Academy of Sciences 115, no. 32 (2018): 8137–42. http://dx.doi.org/10.1073/pnas.1722206115.

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A key objective in DNA-based material science is understanding and precisely controlling the mechanical properties of DNA hydrogels. We perform microrheology measurements using diffusing wave spectroscopy (DWS) to investigate the viscoelastic behavior of a hydrogel made of Y-shaped DNA (Y-DNA) nanostars over a wide range of frequencies and temperatures. We observe a clear liquid-to-gel transition across the melting temperature region for which the Y-DNA bind to each other. Our measurements reveal a cross-over between the elastic G′(ω) and loss modulus G″(ω) around the melting temperature Tm of

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Amorim, Carolina, Sérgio R. S. Veloso, Elisabete M. S. Castanheira, et al. "Bolaamphiphilic Bis-Dehydropeptide Hydrogels as Potential Drug Release Systems." Gels 7, no. 2 (2021): 52. http://dx.doi.org/10.3390/gels7020052.

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The self-assembly of nanometric structures from molecular building blocks is an effective way to make new functional materials for biological and technological applications. In this work, four symmetrical bolaamphiphiles based on dehydrodipeptides (phenylalanyldehydrophenylalanine and tyrosyldehydrophenylalanine) linked through phenyl or naphthyl linkers (terephthalic acid and 2,6-naphthalenedicarboxylic acid) were prepared, and their self-assembly properties were studied. The results showed that all compounds, with the exception of the bolaamphiphile of tyrosyldehydrophenylalanine and 2,6-nap

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Phan, Thi Ha My, Ching-Chia Huang, Yi-Jen Tsai, Jin-Jia Hu, and Jeng-Shiung Jan. "Polypeptide Composition and Topology Affect Hydrogelation of Star-Shaped Poly(L-lysine)-Based Amphiphilic Copolypeptides." Gels 7, no. 3 (2021): 131. http://dx.doi.org/10.3390/gels7030131.

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In this research, we studied the effect of polypeptide composition and topology on the hydrogelation of star-shaped block copolypeptides based on hydrophilic, coil poly(L-lysine)20 (s-PLL20) tethered with a hydrophobic, sheet-like polypeptide segment, which is poly(L-phenylalanine) (PPhe), poly(L-leucine) (PLeu), poly(L-valine) (PVal) or poly(L-alanine) (PAla) with a degree of polymerization (DP) about 5. We found that the PPhe, PLeu, and PVal segments are good hydrogelators to promote hydrogelation. The hydrogelation and hydrogel mechanical properties depend on the arm number and hydrophobic

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Lyu, Yaqi, and Helena S. Azevedo. "Supramolecular Hydrogels for Protein Delivery in Tissue Engineering." Molecules 26, no. 4 (2021): 873. http://dx.doi.org/10.3390/molecules26040873.

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Therapeutic proteins, such as growth factors (GFs), have been used in tissue engineering (TE) approaches for their ability to provide signals to cells and orchestrate the formation of functional tissue. However, to be effective and minimize off-target effects, GFs should be delivered at the target site with temporal control. In addition, protein drugs are typically sensitive water soluble macromolecules with delicate structure. As such, hydrogels, containing large amounts of water, provide a compatible environment for the direct incorporation of proteins within the hydrogel network, while thei

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Balion, Zbigniev, Vytautas Cėpla, Nataša Svirskiene, et al. "Cerebellar Cells Self-Assemble into Functional Organoids on Synthetic, Chemically Crosslinked ECM-Mimicking Peptide Hydrogels." Biomolecules 10, no. 5 (2020): 754. http://dx.doi.org/10.3390/biom10050754.

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Hydrogel-supported neural cell cultures are more in vivo-relevant compared to monolayers formed on glass or plastic substrates. However, there is a lack of synthetic microenvironment available for obtaining standardized and easily reproducible cultures characterized by tissue-mimicking cell composition, cell–cell interactions, and functional networks. Synthetic peptides representing the biological properties of the extracellular matrix (ECM) proteins have been reported to promote the adhesion-driven differentiation and functional maturation of neural cells. Thus, such peptides can serve as bui

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Aeridou, Eleni, David Díaz Díaz, Carlos Alemán, and Maria M. Pérez-Madrigal. "Advanced Functional Hydrogel Biomaterials Based on Dynamic B–O Bonds and Polysaccharide Building Blocks." Biomacromolecules 21, no. 10 (2020): 3984–96. http://dx.doi.org/10.1021/acs.biomac.0c01139.

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Hanauer, Nicolas, Pierre Luc Latreille, and Xavier Banquy. "Mechanistic Insights into the Directed Assembly of Hydrogel Blocks Mediated by Polyelectrolytes or Microgels." Langmuir 33, no. 15 (2017): 3864–70. http://dx.doi.org/10.1021/acs.langmuir.7b00924.

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Billiet, Thomas, Bjorn Van Gasse, Elien Gevaert, Maria Cornelissen, José C. Martins, and Peter Dubruel. "Quantitative Contrasts in the Photopolymerization of Acrylamide and Methacrylamide-Functionalized Gelatin Hydrogel Building Blocks." Macromolecular Bioscience 13, no. 11 (2013): 1531–45. http://dx.doi.org/10.1002/mabi.201300143.

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42

Soares, Antonio Gabriel Ataide, Ruthanna Isabelle De Oliveira, Thaynara Mota Venança, et al. "Water-retaining polymers on the early growth and quality of bushy cashew (Anacardium humile A. St. Hill) seedlings." Comunicata Scientiae 11 (May 13, 2020): e3277. http://dx.doi.org/10.14295/cs.v11i0.3277.

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Bushy cashew (Anacardium humile A. St. Hill) is an endemic plant species to the Brazilian Cerrado, a region characterized by scarce and poorly distributed rainfall. The use of hydrogel, a water-retaining polymer that features massive water storage and promotes its release into the environment throughout time may be an alternative to reduce the frequency irrigation in the production of bushy cashew seedlings. This study aimed to evaluate the quality and early growth of bushy cashew seedlings as a function of hydrogel doses. The experimental design adopted was in five randomized blocks, with fiv

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Scremin, Osmar B., José A. G. da Silva, Ângela T. W. de Mamann, Rubia D. Mantai, Ana P. Brezolin, and Anderson Marolli. "Nitrogen efficiency in oat yield through the biopolymer hydrogel." Revista Brasileira de Engenharia Agrícola e Ambiental 21, no. 6 (2017): 379–85. http://dx.doi.org/10.1590/1807-1929/agriambi.v21n6p379-385.

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ABSTRACT The retainers of water in the soil can favor nitrogen (N) use efficiency in oat yield. The aim of the study was to determine if the conditions of use of the biopolymer hydrogel increase the fertilizer-N use efficiency in oat yield in succession systems of high and low residual-N release. In each succession system (soybean/oat, corn/oat), two experiments were conducted in 2014 and 2015, one to quantify biomass yield and the other to estimate grain yield and lodging. The design was randomized blocks with four replicates in a 4 x 4 factorial scheme for hydrogel doses (0, 30, 60 and 120 k

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Ishikawa, Rina, Ryota Nagasaki, Naohiko Kawamura, et al. "Characterization and Application of Bioactive Glass and Chitosan Nanoparticles for Tooth Enamel Remineralization." Journal of Biomaterials and Tissue Engineering 11, no. 7 (2021): 1236–43. http://dx.doi.org/10.1166/jbt.2021.2703.

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We investigated the remineralization of demineralized enamel surfaces through the application of bioactive glass (BG) and chitosan nanoparticles (CNPs). BG and CNPs were immersed in artificial saliva for 7 days. The resulting crystals were analyzed by X-ray diffraction (XRD) and scanning electron microscopy (SEM). Embedded enamel blocks were immersed in demineralization solution and then classified into five treatment groups: (1) No material applied; (2) toothpaste containing NaF (F); (3) CNP hydrogel; (4) distilled water slurry containing BG; and (5) CNP hydrogel containing BG (BG-CNP). The e

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Yin, Jie, David J. Wood, Stephen J. Russell, and Giuseppe Tronci. "Hierarchically Assembled Type I Collagen Fibres as Biomimetic Building Blocks of Biomedical Membranes." Membranes 11, no. 8 (2021): 620. http://dx.doi.org/10.3390/membranes11080620.

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Wet spinning is an established fibre manufacturing route to realise collagen fibres with preserved triple helix architecture and cell acceptability for applications in biomedical membranes. However, resulting fibres still need to be chemically modified post-spinning to ensure material integrity in physiological media, with inherent risks of alteration of fibre morphology and with limited opportunities to induce fibrillogenesis following collagen fixation in the crosslinked state. To overcome this challenge, we hypothesised that a photoactive type I collagen precursor bearing either single or m

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Froimowicz, Pablo, Daniel Klinger, and Katharina Landfester. "Photoreactive Nanoparticles as Nanometric Building Blocks for the Generation of Self-Healing Hydrogel Thin Films." Chemistry - A European Journal 17, no. 44 (2011): 12465–75. http://dx.doi.org/10.1002/chem.201100685.

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Carlomagno, Tiziano, Maria C. Cringoli, Slavko Kralj, et al. "Biocatalysis of d,l-Peptide Nanofibrillar Hydrogel." Molecules 25, no. 13 (2020): 2995. http://dx.doi.org/10.3390/molecules25132995.

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Self-assembling peptides are attracting wide interest as biodegradable building blocks to achieve functional nanomaterials that do not persist in the environment. Amongst the many applications, biocatalysis is gaining momentum, although a clear structure-to-activity relationship is still lacking. This work applied emerging design rules to the heterochiral octapeptide sequence His–Leu–DLeu–Ile–His–Leu–DLeu–Ile for self-assembly into nanofibrils that, at higher concentration, give rise to a supramolecular hydrogel for the mimicry of esterase-like activity. The peptide was synthesized by solid-ph

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Cavalcante, Adailza G., Lourival F. Cavalcante, Alian C. P. Cavalcante, Antônio G. de L. Souto, Carlos E. M. dos Santos, and Danila L. de Araújo. "Variation of Thermal Time, Phyllochron and Plastochron in Passion Fruit Plants With Irrigation Depth and Hydrogel." Journal of Agricultural Science 10, no. 5 (2018): 229. http://dx.doi.org/10.5539/jas.v10n5p229.

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The passion fruit demands water for its growth and production. Water management is relevant in regions characterized by low rainfall indices, such as semi-arid regions. In this direction, the use of hydrogel in the soil allows the water that is supplied through irrigation to be better utilized by the plants, reducing leach losses. The objective of this experiment was to evaluate the influence of hydrogel in soil cultivated with passion fruit and irrigated to various water depths on the thermal time of the phenological stages, phyllochron and plastochron of the plants. Treatments were distribut

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May, Patrick, Soraya Laghmari, and Mathias Ulbricht. "Concentration Polarization Enabled Reactive Coating of Nanofiltration Membranes with Zwitterionic Hydrogel." Membranes 11, no. 3 (2021): 187. http://dx.doi.org/10.3390/membranes11030187.

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In this study, the bottleneck challenge of membrane fouling is addressed via establishing a scalable concentration polarization (CP) enabled and surface-selective hydrogel coating using zwitterionic cross-linkable macromolecules as building blocks. First, a novel methacrylate-based copolymer with sulfobetain and methacrylate side groups was prepared in a simple three-step synthesis. Polymer gelation initiated by a redox initiator system (ammonium persulfate and tetramethylethylenediamine) for radical cross-linking was studied in bulk in order to identify minimum (“critical”) concentrations to

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Lübtow, Mrlik, Hahn, et al. "Temperature-Dependent Rheological and Viscoelastic Investigation of a Poly(2-methyl-2-oxazoline)-b-poly(2-iso-butyl-2-oxazoline)-b-poly(2-methyl-2-oxazoline)-Based Thermogelling Hydrogel." Journal of Functional Biomaterials 10, no. 3 (2019): 36. http://dx.doi.org/10.3390/jfb10030036.

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The synthesis and characterization of an ABA triblock copolymer based on hydrophilic poly(2-methyl-2-oxazoline) (pMeOx) blocks A and a modestly hydrophobic poly(2-iso-butyl-2-oxazoline) (piBuOx) block B is described. Aqueous polymer solutions were prepared at different concentrations (1–20 wt %) and their thermogelling capability using visual observation was investigated at different temperatures ranging from 5 to 80 °C. As only a 20 wt % solution was found to undergo thermogelation, this concentration was investigated in more detail regarding its temperature-dependent viscoelastic profile uti

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