scholarly journals Arrested dynamics in a model peptide hydrogel system

Soft Matter ◽  
2020 ◽  
Vol 16 (11) ◽  
pp. 2642-2651 ◽  
Author(s):  
Axel Rüter ◽  
Stefan Kuczera ◽  
Luigi Gentile ◽  
Ulf Olsson
Keyword(s):  
Model Peptide ◽  
System P ◽  
Hydrogel System ◽  
Peptide Hydrogel ◽  
Colloidal Rods

We report here on a peptide hydrogel system, which in contrast to most other such systems, is made up of relatively short fibrillar aggregates, discussing resemblance with colloidal rods.

scholarly journals Enhancing the anti-ovarian cancer activity of quercetin using a self-assembling micelle and thermosensitive hydrogel drug delivery system

RSC Advances ◽  
2018 ◽  
Vol 8 (38) ◽  
pp. 21229-21242 ◽  
Author(s):  
Guangya Xu ◽  
Bin Li ◽  
Ting Wang ◽  
Jun Wan ◽  
Yan Zhang ◽  
...  
Keyword(s):  
Ovarian Cancer ◽  
Drug Delivery ◽  
Drug Delivery System ◽  
Thermosensitive Hydrogel ◽  
Injectable Hydrogel ◽  
Self Assembling ◽  
System P ◽  
Hydrogel Composites ◽  
Cancer Activity ◽  
Hydrogel System

In this study, a quercetin-loaded thermosensitive injectable hydrogel system (Qu-M–hydrogel composites) was constructed based on nanotechnology.

Thiolated human serum albumin cross-linked dextran hydrogels as a macroscale delivery system

Soft Matter ◽  
2014 ◽  
Vol 10 (27) ◽  
pp. 4869-4874 ◽  
Author(s):  
Yue Gao ◽  
Roxanne E. Kieltyka ◽  
Wim Jesse ◽  
Ben Norder ◽  
Alexander V. Korobko ◽  
...  
Keyword(s):  
Drug Delivery ◽  
Human Serum Albumin ◽  
Serum Albumin ◽  
Human Serum ◽  
Delivery System ◽  
Drug Carrier ◽  
System P ◽  
Cross Linker ◽  
Hydrogel System

A biohybrid hydrogel system using human serum albumin as a simultaneous drug carrier and covalent cross-linker was established for macroscale drug delivery.

Design of a micellized α-cyclodextrin based supramolecular hydrogel system

Soft Matter ◽  
2015 ◽  
Vol 11 (27) ◽  
pp. 5425-5434 ◽  
Author(s):  
Anis Abdul Karim ◽  
Xian Jun Loh
Keyword(s):  
Sustained Release ◽  
Supramolecular Hydrogel ◽  
System P ◽  
First Time ◽  
Step Mechanism ◽  
Hydrogel System

This study describes, for the first time, a two-step mechanism of a supramolecular hydrogel system to engineer an injectable gel depot for controlled/sustained release of actives.

scholarly journals Tube to ribbon transition in a self-assembling model peptide system

2020 ◽  
Vol 22 (33) ◽  
pp. 18320-18327
Author(s):  
Axel Rüter ◽  
Stefan Kuczera ◽  
Joakim Stenhammar ◽  
Thomas Zinn ◽  
Theyencheri Narayanan ◽  
...  
Keyword(s):  
Thermodynamic Model ◽  
Model Peptide ◽  
Self Assembling ◽  
System P ◽  
Peptide System

We present a thermodynamic model for the structural tube to ribbon transition in the AnK model peptide system.

Comparison of TEM and STM observations of small silver clusters on different carbon supports

1990 ◽  
Vol 48 (4) ◽  
pp. 264-265
Author(s):  
Bernd Tesche ◽  
Tobias Schilling
Keyword(s):  
Vibration Isolation ◽  
Pyrolytic Graphite ◽  
Carbon Film ◽  
Silver Clusters ◽  
Carbon Supports ◽  
Stacking Order ◽  
System P ◽  
High Resolution Tem ◽  
High Degree ◽  
Degree Of Order

The objective of our work is to determine:a) whether both of the imaging methods (TEM, STM) yield comparable data andb) which method is better suited for a reliable structure analysis of microclusters smaller than 1.5 nm, where a deviation of the bulk structure is expected.The silver was evaporated in a bell-jar system (p 10−5 pa) and deposited onto a 6 nm thick amorphous carbon film and a freshly cleaved highly oriented pyrolytic graphite (HOPG).The average deposited Ag thickness is 0.1 nm, controlled by a quartz crystal microbalance at a deposition rate of 0.02 nm/sec. The high resolution TEM investigations (100 kV) were executed by a hollow-cone illumination (HCI). For the STM investigations a commercial STM was used. With special vibration isolation we achieved a resolution of 0.06 nm (inserted diffraction image in Fig. 1c). The carbon film shows the remarkable reduction in noise by using HCI (Fig. 1a). The HOPG substrate (Fig. 1b), cleaved in sheets thinner than 30 nm for the TEM investigations, shows the typical arrangement of a nearly perfect stacking order and varying degrees of rotational disorder (i.e. artificial single crystals). The STM image (Fig. 1c) demonstrates the high degree of order in HOPG with atomic resolution.

Conclusion: What is Speculative Empiricism?

2018 ◽  
Author(s):  
Didier Debaise
Keyword(s):  
Social Groups ◽  
Speculative Philosophy ◽  
System P ◽  
History Of ◽  
Selection Of

Process and Reality ends with a warning: ‘[t]he chief danger to philosophy is narrowness in the selection of evidence’ (PR, 337). Although this danger of narrowness might emerge from the ‘idiosyncrasies and timidities of particular authors, of particular social groups, of particular schools of thought, of particular epochs in the history of civilization’ (PR, 337), we should not be mistaken: it occurs within philosophy, in its activity, its method. And the fact that this issue arises at the end of Process and Reality reveals the ambition that has accompanied its composition: Whitehead has resisted this danger through the form and ambition of his speculative construction. The temptation of a narrowness in selection attempts to expel speculative philosophy at the same time as it haunts each part of its system.

Pedestrian Oriented Vehicular Collision Avoidance Support System: P-VCASS

2010 ◽  
Vol E93-A (4) ◽  
pp. 679-688 ◽  
Author(s):  
Tomotaka WADA ◽  
Yuki NAKANISHI ◽  
Ryohta YAMAGUCHI ◽  
Kazushi FUJIMOTO ◽  
Hiromi OKADA
Keyword(s):  
Collision Avoidance ◽  
Support System ◽  
System P

A Boronic Acid-Based Fluorescence Hydrogel for Monosaccharide Detection

2018 ◽  
Author(s):  
Suying Xu ◽  
Adam Sedgwick ◽  
Souad Elfecky ◽  
Wenbo Chen ◽  
Ashley Jones ◽  
...  
Keyword(s):  
Fluorescent Probe ◽  
Boronic Acid ◽  
Binding Constants ◽  
Strong Fluorescence ◽  
Fluorescence Response ◽  
Turn On ◽  
Fluorescence Turn On ◽  
Hydrogel System

<p>A boronic acid-based anthracene fluorescent probe was functionalised with an acrylamide unit to incorporate into a hydrogel system for monosaccharide detection<i>. </i>In solution, the fluorescent probe<b> </b>displayed a strong fluorescence turn-on response upon exposure to fructose, and an expected trend in apparent binding constants, as judged by a fluorescence response where D-fructose > D-galactose > D-mannose > D-glucose. The hydrogel incorporating the boronic acid monomer demonstrated the ability to detect monosaccharides by fluorescence with the same overall trend as the monomer in solution with the addition of fructose resulting in a 10-fold enhancement (≤ 0.25 M). <b><u></u></b></p>

Temporal variability of disinfection by-products concentration in urban public water system

2013 ◽  
Vol 14 (4) ◽  
pp. 393-398
Keyword(s):  
Drinking Water ◽  
Water Samples ◽  
Temporal Variability ◽  
Water System ◽  
The Other ◽  
Major Constituent ◽  
System P ◽  
Public Water System ◽  
Drinking Water Samples ◽  
By Products

The occurrence of trihalomethanes (THMs) was studied in the drinking water samples from urban water supply network of Karachi city that served more than 18 million people. Drinking water samples were collected from 58 locations in summer (May-August) and winter (November-February) seasons. The major constituent of THMs detected was chloroform in winter (92.34%) and summer (93.07%), while the other THMs determined at lower concentrations. Summer and winter concentrations of total THMs at places exceed the levels regulated by UEPA (80 μg l-1) and WHO (100 μg l-1). GIS linked temporal variability in two seasons showed significantly higher median concentration (2.5%-23.06%) of THMs compared to winter.

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