Searched for:
(1 - 20 of 31)

Pages

document
van Ramshorst, Justus (author), van Esch, Thijs (author)
During three months information about the sewer system of Maputo was gathered, mostly at DNA, DAS, CRA, AdeM, AIAS and at the Municipality of Maputo. The information, consisting of reports, papers, maps, presentations and websites, was used to estimate the potential amount of wastewater in the sewer system of Urban Maputo. This wastewater could...
student report 2014
document
Lakshminarayanan, Vasudevan (author), Poltorak, L. (author), Bosma, D. (author), Sudhölter, Ernst J. R. (author), van Esch, J.H. (author), Mendes, E. (author)
Controlled localization of platinum nanoparticles (Pt NPs) at a solid support assisted by a polarized liquid-liquid interface is reported. Electrocatalytic water oxidation resulted in local pH modulation followed by the directed self-assembly of a dibenzoyl-l-cystine hydrogelator forming a structured hydrogel retaining the shape of the Pt NP...
review 2019
document
van Esch, J.M. (author)
report 2001
document
van Esch, J.M. (author)
report 2000
document
van Esch, J.M. (author)
report 2001
document
van Esch, Thijs (author)
Snow in mountainous areas is of great importance for the water supply in many catchments. To get data on snow cover, ground station data is not enough and, in many catchments, not available. Therefore, satellite data is used to measure snow cover. In this thesis the MODIS daily snow cover dataset (MOD10A1) is used. These images are obstructed by...
master thesis 2019
document
Lovrak, M. (author), Hendriksen, W.E.J. (author), Kreutzer, M.T. (author), van Steijn, V. (author), Eelkema, R. (author), van Esch, J.H. (author)
Controlled diffusion, reaction and assembly of hydrogelator precursors can be used to create soft hydrogel objects of defined shape and size. In this study we show that controlling local reaction kinetics by means of pH, diffusion length and the concentrations of reactants allows control over the dimensions of formed supramolecular structures....
journal article 2019
document
Zhang, K. (author), Suratkar, Aaditya (author), Vedaraman, Sitara (author), Lakshminarayanan, Vasudevan (author), Jennings, Laurence (author), Glazer, P.J. (author), van Esch, J.H. (author), Mendes, E. (author)
While the formation of (tri)block copolymer hydrogels has been extensively investigated, such studies mostly focused on equilibrium self-assembling whereas the use of preformed structures as building blocks such as out of equilibrium, quenched, nanofibrillar micelles is still a challenge. Here, we demonstrate that quenched, ultralong...
journal article 2018
document
van Assenbergh, S.P. (author), Fokker, Marike (author), Langowski, Julian (author), van Esch, J.H. (author), Kamperman, Marleen (author), Dodou, D. (author)
The adhesiveness of biological micropatterned adhesives primarily relies on their geometry (e.g., feature size, architecture) and material properties (e.g., stiffness). Over the last few decades, researchers have been mimicking the geometry and material properties of biological micropatterned adhesives. The performance of these biomimetic...
journal article 2019
document
Trausel, F. (author), Fan, B. (author), van Rossum, S.A.P. (author), van Esch, J.H. (author), Eelkema, R. (author)
Hydrazone formation reactions from aldehydes and hydrazides have the remarkable qualities that they proceed in water and the kinetics can be controlled by organocatalysis. For these reasons, this class of reactions finds widespread use in biological as well as material settings. We recently reported a protected aniline catalyst for hydrazone...
journal article 2018
document
Wang, Y. (author), Lovrak, M. (author), Liu, Q. (author), Maity, C. (author), le Sage, V.A.A. (author), Guo, Xuhong (author), Eelkema, R. (author), van Esch, J.H. (author)
Hierarchical compartmentalization through the bottom-up approach is ubiquitous in living cells but remains a formidable task in synthetic systems. Here we report on hierarchically compartmentalized supramolecular gels that are spontaneously formed by multilevel self-sorting. Two types of molecular gelators are formed in situ from...
journal article 2019
document
Abdullah, Nor Hakimin (author), Wan Abu Bakar, Wan Azelee (author), Hussain, Rafaqat (author), Bakar, Mohd Bakri (author), van Esch, J.H. (author)
Characterization utilizing X-ray photoelectron spectroscopy (XPS) revealed the presence of all the expected elements found in trishydrazone hydrogels (3). Morphological study on confocal laser scanning microscopy (CLSM) and atomic force microscopy (AFM) revealed the branching and bundling of fibers that led hydrogels network as well as the...
journal article 2018
document
Mytnyk, S. (author), Ziemecka, I. (author), Olive, A.G.L. (author), Totlani, K. (author), Oldenhof, S. (author), Kreutzer, M.T. (author), van Steijn, V. (author), van Esch, J.H. (author), van der Meer, J.W.M. (author)
We report the continuous production of microcapsules composed of an aqueous core and permeable hydrogel shell, made stable by the controlled photo-cross-linking of the shell of an all-aqueous double emulsion. While most previous work on water-based emulsions focused on active droplet formation, here double emulsion droplets were spontaneously...
journal article 2017
document
Singh, N. (author), Zhang, K. (author), Angulo-Pachón, C.A. (author), Mendez Sevillano, D. (author), van Esch, J.H. (author), Escuder, B. (author)
By equipping mutually incompatible carboxylic acid and proline catalytic groups with different self-assembling motives we have achieved self-sorting of the resulting catalytic gelators, namely SucVal8 and ProValDoc, into different supramolecular fibers, thus preventing the acidic and basic catalytic groups from interfering with each other. The...
journal article 2016
document
Trausel, F. (author), Maity, C. (author), Poolman, J.M. (author), Kouwenberg, D.S.J. (author), Versluis, F. (author), van Esch, J.H. (author), Eelkema, R. (author)
Cells can react to their environment by changing the activity of enzymes in response to specific chemical signals. Artificial catalysts capable of being activated by chemical signals are rare, but of interest for creating autonomously responsive materials. We present an organocatalyst that is activated by a chemical signal, enabling temporal...
journal article 2017
document
Piskorz, T.K. (author), De Vries, Alex H. (author), De Feyter, Steven (author), van Esch, J.H. (author)
Ostwald ripening can improve the long-range order of self-assembled monolayers by the growth of large domains and disassembly of smaller ones. Here, coarse-grained molecular dynamics simulations are used to study the dynamics of the stable assembly and the coarsening of defects of physisorbed monolayers of long-chain functionalized alkanes....
journal article 2018
document
Zhang, K. (author), Gil Arranja, A. (author), Chen, Hongyu (author), Mytnyk, S. (author), Wang, Y. (author), Oldenhof, S. (author), van Esch, J.H. (author), Mendes, E. (author)
The last decade has witnessed great progress in understanding and manipulating self-assembly of block copolymers in solution. A wide variety of micellar structures can be created and many promising applications in bioscience have been reported. In particular, nano-fibrous micelles provide a great platform to mimic the filamentous structure of...
journal article 2018
document
Versluis, F. (author), van Esch, J.H. (author), Eelkema, R. (author)
Synthetic self-assembly has long been recognized as an excellent approach for the formation of ordered structures on the nanoscale. Although the development of synthetic self-assembling materials has often been inspired by principles observed in nature (e.g., the assembly of lipids, DNA, proteins), until recently the self-assembly of...
journal article 2016
document
Liu, Q. (author), Zhao, M. (author), Mytnyk, S. (author), Klemm, B. (author), Zhang, K. (author), Wang, Y. (author), Yan, Dadong (author), Mendes, E. (author), van Esch, J.H. (author)
Hydrogel microparticles are important in materials engineering, but their applications remain limited owing to the difficulties associated with their manipulation. Herein, we report the self-orientation of crescent-shaped hydrogel microparticles and elucidate its mechanism. Additionally, the microparticles were used, for the first time, as...
journal article 2019
document
Wang, Hucheng (author), Liu, Liqun (author), Bai, Shengyu (author), Guo, Xuhong (author), Eelkema, R. (author), van Esch, J.H. (author), Wang, Y. (author)
The present work shows how transient supramolecular hydrogels can be formed by catalytically controlled molecular self-assembly. Catalysis formation of molecular gelators leads the self-assembly along a kinetically favored pathway, resulting in transient hydrogels. This work demonstrates an effective approach towards pathway-dependent...
journal article 2020
Searched for:
(1 - 20 of 31)

Pages