Silver-coordination polymer network combining antibacterial action and shape memory capabilities

RSC Advances ◽  
2014 ◽  
Vol 4 (61) ◽  
pp. 32276-32282 ◽  
Author(s):  
Lin Wang ◽  
Wenxi Wang ◽  
Shubin Di ◽  
Xifeng Yang ◽  
Hongmei Chen ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Coordination Polymer ◽  
Shape Memory ◽  
Memory Function ◽  
Polymer Network ◽  
Antibacterial Action

An Ag-coordination polymer network displays a shape memory function and simultaneously allows Ag ions to be released to exert an antibacterial activity.

Self-healing and shape memory capabilities of copper-coordination polymer network

RSC Advances ◽  
2015 ◽  
Vol 5 (37) ◽  
pp. 28896-28900 ◽  
Author(s):  
Lin Wang ◽  
Shubin Di ◽  
Wenxi Wang ◽  
Shaobing Zhou
Keyword(s):  
Coordination Polymer ◽  
Shape Memory ◽  
Mild Condition ◽  
Polymer Network ◽  
Self Healing ◽  
Copper Coordination ◽  
Copper Coordination Polymer

A copper-coordination polymer network displays excellent shape memory and high self-healing functions under a mild condition.

Facile scalable one-step wet-spinning of surgical sutures with shape memory function and antibacterial activity for wound healing

2020 ◽  
Vol 31 (6) ◽  
pp. 1499-1503
Author(s):  
Xinghan Chen ◽  
Pengfei Tan ◽  
Ya Wen ◽  
Wencheng Zhou ◽  
Ying Cen ◽  
...  
Keyword(s):  
Wound Healing ◽  
Antibacterial Activity ◽  
Shape Memory ◽  
Memory Function ◽  
Wet Spinning ◽  
Surgical Sutures ◽  
One Step

Synthesis of A2+B3 type hyperbranched poly(amide-ether) block copolymer and its shape memory function

2021 ◽  
Vol 146 ◽  
pp. 110255
Author(s):  
Ryoji Kudo ◽  
Tadashi Tsukamoto ◽  
Shiduko Nakajo ◽  
Atsuhiro Fujimori ◽  
Yoshiyuki Oishi ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Shape Memory ◽  
Memory Function ◽  
Hyperbranched Poly

Novel silver-loaded semi-interpenetrating polymer network gel films with antibacterial activity

2009 ◽  
Vol 47 (19) ◽  
pp. 4950-4962 ◽  
Author(s):  
Thimma Reddy Thatiparti ◽  
Arihiro Kano ◽  
Atsushi Maruyama ◽  
Atsushi Takahara
Keyword(s):  
Antibacterial Activity ◽  
Polymer Network ◽  
Interpenetrating Polymer Network

scholarly journals Shape memory polymer network with thermally distinct elasticity and plasticity

2016 ◽  
Vol 2 (1) ◽  
pp. e1501297 ◽  
Author(s):  
Qian Zhao ◽  
Weike Zou ◽  
Yingwu Luo ◽  
Tao Xie
Keyword(s):  
Shape Memory ◽  
Molecular Design ◽  
Shape Change ◽  
Shape Memory Polymer ◽  
Polymer Network ◽  
Stimuli Responsive ◽  
Responsive Materials ◽  
Device Applications ◽  
Temperature Ranges ◽  
Rational Molecular Design

Stimuli-responsive materials with sophisticated yet controllable shape-changing behaviors are highly desirable for real-world device applications. Among various shape-changing materials, the elastic nature of shape memory polymers allows fixation of temporary shapes that can recover on demand, whereas polymers with exchangeable bonds can undergo permanent shape change via plasticity. We integrate the elasticity and plasticity into a single polymer network. Rational molecular design allows these two opposite behaviors to be realized at different temperature ranges without any overlap. By exploring the cumulative nature of the plasticity, we demonstrate easy manipulation of highly complex shapes that is otherwise extremely challenging. The dynamic shape-changing behavior paves a new way for fabricating geometrically complex multifunctional devices.

scholarly journals Royal Jelly Aliphatic Acids Contribute to Antimicrobial Activity of Honey

2018 ◽  
Vol 62 (1) ◽  
pp. 111-123 ◽  
Author(s):  
Walerij Isidorow ◽  
Stanisław Witkowski ◽  
Piotr Iwaniuk ◽  
Monika Zambrzycka ◽  
Izabela Swiecicka
Keyword(s):  
Fatty Acids ◽  
Antimicrobial Activity ◽  
Antibacterial Activity ◽  
Royal Jelly ◽  
Dicarboxylic Acids ◽  
Antibacterial Action ◽  
Larval Food ◽  
Nutrient Media ◽  
Minimal Inhibitory Concentrations ◽  
Aliphatic Acids

Abstract Honey is valued for its therapeutic qualities which are attributed among others to its antibacterial multifactorial properties. However, all the factors that influence these properties have not been identified. The present study is focused on the antibacterial action of fatty acids originating from royal jelly, the larval food of honeybees. Aliphatic C8-C12 acids characteristic of this bee product had previously been identified in more than fifty different samples of honey originating from seven countries and in eleven samples of Polish herbhoney. Experiments were performed to ascertain the influence of acidity on the antimicrobial activity of the acids. In acidic nutrient media all tested aliphatic hydroxyacids and unsaturated dicarboxylic acids demonstrated antibacterial action against different microbes with minimal inhibitory concentrations between 0.048 and 3.125 mM. Our results confirm that part of the antibacterial activity of honey contributes to these compounds of bee origin.

scholarly journals Is AMF inoculation an alternative to maximize the in vitro antibacterial activity of Libidibia ferrea extracts?

2021 ◽  
Vol 10 (1) ◽  
pp. e10010111435
Author(s):  
Emanuela Lima dos Santos ◽  
Brena Coutinho Muniz ◽  
Beathriz Godoy Vilela Barbosa ◽  
Marcia Maria Camargo Morais ◽  
Francineyde Alves da Silva ◽  
...  
Keyword(s):  
Antibacterial Activity ◽  
Mycorrhizal Fungi ◽  
Arbuscular Mycorrhizal ◽  
First Record ◽  
Antibacterial Action ◽  
Methanolic Extracts ◽  
In Vitro Antibacterial Activity ◽  
Mycorrhizal Plants ◽  
Amf Inoculation

Arbuscular mycorrhizal fungi (AMF) are known to provide plant species with several benefits, such as an increased production of bioactive compounds. However, it is yet to be defined whether extracts of mycorrhizal plants are more efficient in vitro antibacterial actions when compared to non-mycorrhizal plants. We tested the hypothesis of whether or not, methanolic extracts of Libidibia ferrea fruits, from plants established in the field and inoculated with AMF, have higher antibacterial action when inoculated with Acaulospora longula, Claroideoglomus etunicatum or Gigaspora albida. In addition, native L. ferrea fruits collected from the Caatinga area were also tested. The extracts of L. ferrea fruits inoculated with A. longula had higher in vitro antibacterial action in relation to the extracts of fruits from non-inoculated plants (p <0.05) thus characterizing the first record of different antibacterial actions of plant extracts due to inoculation with AMF. The extracts of L. ferrea fruits inoculated with A. longula were more efficient in inhibiting growth of Gram-negative bacteria. The zone diameters of inhibition ranged from 2.48 % to 7.56 % larger than the zones of the non-inoculated L. ferrea fruit extracts. The inoculation of L. ferrea with AMF may represent an alternative way of producing fruits with different antibacterial activity.

scholarly journals Programming a crystalline shape memory polymer network with thermo- and photo-reversible bonds toward a single-component soft robot

2018 ◽  
Vol 4 (1) ◽  
pp. eaao3865 ◽  
Author(s):  
Binjie Jin ◽  
Huijie Song ◽  
Ruiqi Jiang ◽  
Jizhou Song ◽  
Qian Zhao ◽  
...  
Keyword(s):  
Shape Memory ◽  
Shape Memory Polymer ◽  
Polymer Network ◽  
Single Component ◽  
Soft Robot
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