From 815a83bf3c31f09450b58813996532fd736f07a9 Mon Sep 17 00:00:00 2001 From: orvalblount208 Date: Mon, 11 Aug 2025 09:16:50 +0000 Subject: [PATCH] =?UTF-8?q?Add=20'Electricity=20Turns=20Graphene=20into=20?= =?UTF-8?q?=E2=80=98bug=20Zapper=E2=80=99=20For=20Bacteria'?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- ...ene-into-%E2%80%98bug-Zapper%E2%80%99-For-Bacteria.md | 9 +++++++++ 1 file changed, 9 insertions(+) create mode 100644 Electricity-Turns-Graphene-into-%E2%80%98bug-Zapper%E2%80%99-For-Bacteria.md diff --git a/Electricity-Turns-Graphene-into-%E2%80%98bug-Zapper%E2%80%99-For-Bacteria.md b/Electricity-Turns-Graphene-into-%E2%80%98bug-Zapper%E2%80%99-For-Bacteria.md new file mode 100644 index 0000000..0b3027a --- /dev/null +++ b/Electricity-Turns-Graphene-into-%E2%80%98bug-Zapper%E2%80%99-For-Bacteria.md @@ -0,0 +1,9 @@ +
You're free to share this text underneath the Attribution 4.Zero International license. Scientists have discovered that laser-induced graphene (LIG) can protect in opposition to "biofouling," the buildup of microorganisms, plants, or different biological materials on wet surfaces. As well as, the team additionally discovered that, when the material is electrified, it also kills bacteria. LIG is a spongy model of graphene, the single-atom layer of carbon atoms. The Rice University lab of chemist James Tour developed it three years in the past by burning partway by means of an inexpensive polyimide sheet with a laser, which turned the surface right into a lattice of interconnected graphene sheets. The researchers have since instructed uses for the fabric in wearable electronics and gas cells and for superhydrophobic or superhydrophilic surfaces. "This type of graphene is extremely resistant to biofilm formation, which has promise for places like water-treatment plants, oil-drilling operations, hospitals, and ocean purposes like underwater pipes which are delicate to fouling," says Tour, a professor of computer science in addition to of materials science and nanoengineering, whose team’s report appears in ACS Applied Materials and Interfaces.
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When used as electrodes with a small utilized voltage, LIG becomes the bacterial equivalent of a backyard [bug zapper](http://pasarinko.zeroweb.kr/bbs/board.php?bo_table=notice&wr_id=7139816). Tests with out the cost confirmed what has long been identified-that graphene-based mostly nanoparticles have antibacterial properties. When 1.1 to 2.5 volts were utilized, the extremely conductive LIG electrodes "greatly enhanced" those properties. Under the microscope, the researchers watched as fluorescently tagged Pseudomonas aeruginosa bacteria in a solution with LIG electrodes above 1.1 volts had been drawn toward the anode. Above 1.5 volts, the cells started to disappear and vanished completely inside 30 seconds. At 2.5 volts, micro organism disappeared virtually fully from the floor after one second. The lab partnered with Professor Christopher Arnusch, a lecturer at the Ben-Gurion University Zuckerberg Institute for Water Research who focuses on water purification. Arnusch’s lab tested LIG electrodes in a micro organism-laden answer with 10 p.c secondary handled wastewater and located that after 9 hours at 2.5 volts, 99.9 p.c of the micro organism had been killed and the electrodes strongly resisted biofilm formation.
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The researchers suspect bacteria might meet their demise by way of a mix of contact with the rough floor of LIG, the electrical cost, and [bug zapper](http://zhadanchaoren.dhlog.com/viewthread.php?tid=97662&extra=) toxicity from localized production of hydrogen peroxide. The contact could also be something like a knee hitting pavement, however on this case, the micro organism are all knee and the sharp graphene edges rapidly destroy their membranes. Fortunately, LIG’s anti-fouling properties keep useless micro organism from accumulating on the floor, Tour says. "The combination of passive biofouling inhibition and lively voltage-induced microbial removing will possible make this a highly sought-after material for inhibiting the expansion of troublesome natural fouling that plagues many industries," Tour says. Other authors embrace researchers from Ben-Gurion University of the Negev and Rice University. The United States−Israel Binational Science Foundation, the Canadian Associates of Ben-Gurion University of the Negev Quebec Region, the Israel Science Foundation, the Air Force Office of Scientific Research, and its Multidisciplinary University Research Initiative supported the research.
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