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electroactive wound healing

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https://www.readbyqxmd.com/read/29799727/electroactive-mg-2-hydroxyapatite-nanostructured-networks-against-drug-resistant-bone-infection-strains
#1
Nancy C Andrés, Juan M Sieben, Mónica Baldini, Carlos H Rodríguez, Ángela Famiglietti, Paula V Messina
Surface colonization competition between bacteria and host cells is one of the critical factors involved in tissue/implant integration. Current biomaterials are evaluated for their ability both of withstanding favorable responses of host tissue cells and of resisting bacterial contamination. In this work, the antibacterial ability of biocompatible Mg2+ -substituted nanostructured hydroxyapatite (HA) was investigated. The densities of Staphylococcus aureus, Pseudomonas aeruginosa, and Escherichia coli strains were significantly decreased after culture in the presence of Mg-substituted HA materials in direct correlation with Mg2+ -Ca2+ switch in the HA lattice...
June 13, 2018: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/29262296/electroactive-biomaterials-vehicles-for-controlled-delivery-of-therapeutic-agents-for-drug-delivery-and-tissue-regeneration
#2
REVIEW
Biranche Tandon, Adrián Magaz, Richard Balint, Jonny J Blaker, Sarah H Cartmell
Electrical stimulation for delivery of biochemical agents such as genes, proteins and RNA molecules amongst others, holds great potential for controlled therapeutic delivery and in promoting tissue regeneration. Electroactive biomaterials have the capability of delivering these agents in a localized, controlled, responsive and efficient manner. These systems have also been combined for the delivery of both physical and biochemical cues and can be programmed to achieve enhanced effects on healing by establishing control over the microenvironment...
April 2018: Advanced Drug Delivery Reviews
https://www.readbyqxmd.com/read/28107663/antibacterial-anti-oxidant-electroactive-injectable-hydrogel-as-self-healing-wound-dressing-with-hemostasis-and-adhesiveness-for-cutaneous-wound-healing
#3
Xin Zhao, Hao Wu, Baolin Guo, Ruonan Dong, Yusheng Qiu, Peter X Ma
Injectable self-healing hydrogel dressing with multifunctional properties including anti-infection, anti-oxidative and conductivity promoting wound healing process will be highly desired in wound healing application and its design is still a challenge. We developed a series of injectable conductive self-healed hydrogels based on quaternized chitosan-g-polyaniline (QCSP) and benzaldehyde group functionalized poly(ethylene glycol)-co-poly(glycerol sebacate) (PEGS-FA) as antibacterial, anti-oxidant and electroactive dressing for cutaneous wound healing...
April 2017: Biomaterials
https://www.readbyqxmd.com/read/26773459/a-quantitative-cell-modeling-and-wound-healing-analysis-based-on-the-electric-cell-substrate-impedance-sensing-ecis-method
#4
Jen Ming Yang, Szi-Wen Chen, Jhe-Hao Yang, Chih-Chin Hsu, Jong-Shyan Wang
In this paper, a quantitative modeling and wound-healing analysis of fibroblast and human keratinocyte cells is presented. Our study was conducted using a continuous cellular impedance monitoring technique, dubbed Electric Cell-substrate Impedance Sensing (ECIS). In fact, we have constructed a mathematical model for quantitatively analyzing the cultured cell growth using the time series data directly derived by ECIS in a previous work. In this study, the applicability of our model into the keratinocyte cell growth modeling analysis was assessed first...
February 1, 2016: Computers in Biology and Medicine
https://www.readbyqxmd.com/read/26473663/stimulation-of-wound-healing-by-electroactive-antibacterial-and-antioxidant-polyurethane-siloxane-dressing-membranes-in-vitro-and-in-vivo-evaluations
#5
Reza Gharibi, Hamid Yeganeh, Alireza Rezapour-Lactoee, Zuhair M Hassan
A series of novel polyurethane/siloxane-based wound dressing membranes was prepared through sol-gel reaction of methoxysilane end-functionalized urethane prepolymers composed of castor oil and ricinoleic methyl ester as well as methoxysilane functional aniline tetramer (AT) moieties. The samples were fully characterized and their physicochemical, mechanical, electrical, and biological properties were assayed. The biological activity of these dressings against fibroblast cells and couple of microbes was also studied...
November 4, 2015: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/23181468/micropatterned-surfaces-functionalized-with-electroactive-peptides-for-detecting-protease-release-from-cells
#6
Dong-Sik Shin, Ying Liu, Yandong Gao, Timothy Kwa, Zimple Matharu, Alexander Revzin
Matrix metalloproteinases (MMPs) regulate composition of the extracellular matrix and play a critical role in cancer, fibrosis, and wound healing. This article describes a novel peptide-based electrochemical biosensor for detecting activity of cell-secreted protease MMP9. In this sensing strategy, a peptide specific to MMP9 was modified with a redox label (methylene blue (MB)) and immobilized on microfabricated 300 μm diameter Au electrodes. Challenging the electrodes with known concentrations of MMP9 resulted in the cleavage of the MB containing peptide fragment and caused a decrease in electrical signal measured by square wave voltammetry (SWV)...
January 2, 2013: Analytical Chemistry
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