In order to deal with the challenge of biofilms and its associated infections, it is important to develop some efficient methodology which prevents the formation of biofilms over the surfaces. Now a new possibility has been introduced.
Researchers have successfully developed an antibacterial and antibiofilm composite using non-toxic and hydrophobic nanomaterial, graphene nanoplatelets, via facile two step methodology including functionalisation and subsequent hydrothermal treatment.
The as-prepared composites were characterised using FE-SEM, FTIR and Raman spectroscopy to obtain morphological, compositional and structural details. In addition, the antibacterial efficiency of these composites was investigated against antibiotic resistant S. aureus and E. coli. Afterwards, graphene composite based epoxy coatings were prepared on glass substrate and tested for their antibiofilm efficiency against methicillin resistant S. aureus strain.
Remarkable antibacterial efficiency
The abundant presence of hydroxyl groups over the surface due to tannic acid, hydrophobicity of graphene and epoxy and remarkable antibacterial efficiency of tannic acid (TA), silver (Ag) and graphene synergistically enhance the antibiofilm efficiency of such coatings. According to the reseacrhers, this work presents a new strategy to develop a multifunctional coating and subsequently lessen the risk of biofilm assisted infections.
The study has been published in Progress in Organic Coatings, Volume 159, October 2021.
As the Premier League continues to plunder the depths of Ligue 1 and Marseille, who are particularly exposed with money issues and board problems coming out of their ears, it is no surprise that another side have plucked one of their players.
Watford signed Ivorian international full back Brice Dja Djédjé on Thursday on a deal in the region of €4m but will he be a big improvement on what they have? And what kind of ability will he bring to Vicarage Road next season?
Brice Dja Djédjé started his ascent to Ligue 1 stardom at second division side Evian Thonon Gaillard. He helped Les Roses reach the top flight in his first season and was instrumental at the club over his career there, helping them maintain their Ligue 1 status until his departure to Marseille in January 2014.
Since that move, Dja Djédjé became a prominent option at right back at the Stade Vélodrome. It did not take him long to oust Rod Fanni from the starting position at the club and he finished the season strongly for Marseille.
His position was altered slightly under new boss Marcelo Bielsa, who wanted the team to operate in a 3-5-2 with the Ivorian playing in a more advanced role, effectively an ultra-attacking wing back. Dja Djédjé took to the role like a duck to water, eager to show his ability in going forward and supporting attacks from out wide.
When the Argentine left, the team moved back to a more orthodox 4-2-3-1 and that is where he started to struggle. Often caught too high up the pitch or too deep, Dja Djédjé was neither here nor there as injuries and form saw him eventually surrender his place to loanee Javier Manquillo.
The 25-year-old is a solid full back who has shown capabilities of playing both in a standard back four or as a wing back in a back five. Although last season was not the best example of the Ivorian’s talents, it was not particularly pleasant for anyone in and around Marseille, he certainly has the ability to perform at the required level for top flight football.
Quick, willing to dribble at opponents, but nothing better than an average crosser of the ball, he has all the tools that you would expect from a modern day full-back. Good at timing his tackles and a good reader of the ball, Dja Djédjé does not shirk his defensive responsibilities either, unless he is caught out from pushing too far forward.
However, the worry comes from the fact that while a solid tackler, he does not get involved with the physical side often enough. Picking up just two yellow cards should be seen as a positive but when combined with just 1.2 tackles per game, it is clear that he is not doing enough to disrupt the opposition’s attacking flow.
Add to that his slender frame and his small stature, then you have a player that can struggle one-on-one that isn’t helped by his lapses of concentration. That is especially apparent in the air, where he does not rise high enough to compensate for his height and will be regularly beaten when challenged with balls over the top as he can fail to register runs in behind his position.
The game that highlights all of what he could bring was against champions Paris Saint-Germain in February, where he essentially gave them the lead in the first few minutes. Caught flat footed, he allowed Maxwell easy passage in behind before making a gentle job back as cover came across that allowed the Brazilian to put in a superb cross for Zlatan Ibramhimovic to slot him with ease.
It did not stop there as he fell asleep again, allowing Angel Di Maria through on goal but the Argentine luckily pulled his shot wide. He recovered in an attacking sense, hitting the bar and almost setting up the equaliser, but in the second half he dived in at Di Maria, who simply shifted his feet to score PSG’s winner.
It was a very lax game for Dja Djédjé that highlights his struggles but also his positives in one game. His lack of concentration caught him out twice, his ability going forward almost lead to two goals before rashness allowed the opposition to profit.
New Hornets boss Walter Mazzarri is keen for the club to return to the 3-5-2 formation they have employed successfully in the past and in this kind of set up, Dja Djédjé is more likely to shine. There is less pressure on him to fulfil his defensive duties and with added cover, he will be able to enjoy attempting to find the heads of Odion Ighalo and Troy Deeney in the box on a weekly basis.
Should the formation bomb and Dja Djédjé have to revert further back, then it will really become a concern. With the pace and strength of some very intelligent wingers in the Premier League, he could become exposed and on a team that isn’t guaranteed to avoid a relegation fight, that sounds like it could be a recipe for disaster.
Norwich City central midfielder Youssouf Mulumbu is in advanced talks with Marseille, according to RMC.
Middlesbrough, Sunderland and Crystal Palace have all been in informal contact with the player’s representatives, but Mulumbu currently prefers the idea of a return to France and to join Marseille.
Napit korviin ja soittolista auki, siinäpä on monen meistä ainoa kontakti musiikkiin tänään. Toista oli ennen kun laulaminen oli vielä arkea ja laulu raikui kotiaskareissa ja yhteisissä juhlissa.
Kuopiolaisen Lauluklubi Maestran yrittäjä, musiikin maisteri Jaana Turunen toteaa, että olemme jakaantuneet musiikin tekijöihin ja musiikin kuuntelijoihin. Ja tämä on todellinen harmi, sillä musisoinnilla on tutkitusti roppakaupalla terveysvaikutuksia: laulaessa erittyy mielihyvähormoneja, laulaminen voimaannuttaa ja virkistää ja jopa hetkellisesti parantaa vastustuskykyä. Terveysvaikutuksia on siis tiedossa viis siitä laulatko mukana kuorossa, itseksesi suihkussa tai viikonloppuna karaokebaarissa.
Tosin moni meistä toteaa, että ei ikinä avaisi ääntänsä toisten kuullen, sen verran hyvin on muistissa peruskoulun laulukoe luokan edessä.
– Sellaisia ihmisiä, joita on lannistettu ja lapsena sanottu, että auot vain suutasi kun muut esiintyy, niin kyllä niitä tulee vastaan koko ajan, Turunen toteaa.
Mutta eipä hätää, laulamisen aloittamisen kynnys on matala.
– Laulaminen on siitä kiva musiikkiharrastus, että jokaisella on oma instrumenttinsa olemassa. Tosin koneisto ruostuu jos on laulanut vähän, mutta ruostetta saa kyllä poistettua kun vaan ryhtyy laulamaan ja harjoittelemaan systemaattisesti, Jaana Turunen kertoo.
– Parasta on kun kuulee omin korvin kuinka harjaannutaan ja opitaan lauluja. Olemme yhteinen soitin koko kuoro, kuvaa puolestaan ahkera musiikinharrastaja Marita Jama.
The 170M3562,from Bussmann / Eaton,is Specialty Fuses.what we offer have competitive price in the global market,which are in original and new parts.If you would like to know more about the products or apply a lower price, please contact us through the “online chat” or send a quote to us!
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Product Category :
Specialty Fuses
Manufacturer :
Bussmann / Eaton
Applications :
Electrical, Industrial
Approval Agency :
CSA, UR
Breaking Capacity @ Rated Voltage :
200kA
Class :
–
Current Rating (Amps) :
100A
delivery time :
24 hours
Fuse Type :
Specialty Fuses
Mounting Type :
Holder
Package :
Bulk
Package / Case :
Rectangular, Blade
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Active
Response Time :
–
Series :
170M Fuses
Size / Dimension :
2.323L x 1.772W x 2.008H (59.00mm x 45.00mm x 51.00mm)
A new study presents a comparison of bio-based epoxide-diamine coatings prepared with acyclic and cyclic aliphatic diamines.
As replacements for bisphenol-A, new bio-based and reactive epoxy-amine coatings have been investigated in a new study. Bio-based precursor, epoxy-functionalised tung oil (ETO) was synthesised using glycidyl methacrylate (GMA) and tung oil via a Diels–Alder reaction. The new ETO-diamine-cured systems were prepared with the equivalent molar ratio at room temperature. ETO was cured with acyclic aliphatic (Jeffamine D400) and cyclic aliphatic (Epicure 3300) amines, at four temperatures ranging from 25 to 150°C. The coatings were then compared in terms of their thermal and mechanical properties.
Greener and more reactive tung oil-based epoxide coatings
Test results showed that the epoxide-diamine polymers demonstrated thermal stability up to 170°C. While all the cured systems exhibited good pencil hardness, cross-hatch adhesion, impact resistance, and reverse resistance properties, the epoxide-acyclic diamine system demonstrated greater pendulum hardness and notable pull-off adhesion at 150°C. The research demonstrates the potential for greener and more reactive tung oil-based epoxide coatings with enhanced properties.
The study has been published in Journal of Coatings Technology and Research, Volume 20, Issue 4, July 2023.
Event tip
Bio-based systems are also the focus of the EC Conference Bio-based and Water-based Coatings on November 14 and 15 in Berlin, Germany. At the conference, you will learn about the latest developments in bio-based and water-based coatings.
The 170M3473,from Bussmann / Eaton,is Specialty Fuses.what we offer have competitive price in the global market,which are in original and new parts.If you would like to know more about the products or apply a lower price, please contact us through the “online chat” or send a quote to us!
Specifications
Package
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Contact US
Product Category :
Specialty Fuses
Manufacturer :
Bussmann / Eaton
Applications :
Electrical, Industrial
Approval Agency :
CSA, UR
Breaking Capacity @ Rated Voltage :
200kA
Class :
–
Current Rating (Amps) :
630A
delivery time :
24 hours
Fuse Type :
Specialty Fuses
Mounting Type :
Holder
Package :
Bulk
Package / Case :
Rectangular, Blade
Part Status :
Active
Response Time :
–
Series :
170M Fuses
Size / Dimension :
2.323L x 1.772W x 2.008H (59.00mm x 45.00mm x 51.00mm)
