Nanoparticles may help prevent tooth decay

#1/8/2016
#Monday

Scientists have found a way to use nano particles to effectively break down plaque and wipe out more than 99.9% of cavity causing bacteria within minutes, an advance that may help better prevent tooth decay.

The bacteria that live in dental plaque and contribute to tooth decay often resist traditional antimicrobial treatment, as they can ''hide'' within a sticky bio film matrix, a glue-like polymer scaffold. 

Researchers at University of Pennsylvania took a more sophisticated approach. Instead of applying an anti-microbial to the teeth, they took advantage of the pH-sensitivity and enzyme- like properties of iron-containing nano particles to catalyse the activity of hydrogen peroxide, a commonly used natural antiseptic. 

The activated hydrogen peroxide produced free radicals that were able to degrade the biofilm matrix and kill the bacteria within, significantly reducing plaque and preventing tooth decay, or cavities, in an animal model.

"Even using a very low concentration of hydrogen peroxide, the process was incredibly effective at disrupting the the biofilm," said Hyunkoo, from the University of Pennsylvania. "Adding nano particles increased the efficiency of bacteria killing more than 5,000-fold," said Koo. 

Previous research showed that iron oxide nano particles behave similarly to peroxidase, an enzyme found naturally that catalyses oxidative reactions, often using hydrogen peroxide.

Comments

Post a Comment

Popular posts from this blog

जननी जन्मभूमि

Image
जननी जन्मभूमि एक ऐसी कविता है जो हमारी धरती का महत्व बतलाती है। और यहाँ कवि ये उम्मीद करता है कि समय आने पे हम इसकी रक्षा भी करेंगे। और ये हमारा कर्तव्य भी है। क्यूंकि ये कहा गया है कि जिस भी वस्तु का हम उपयोग करते हैँ उसको बचाना हमारा काम बन जाता है ,या यूं कहें कि हमारा फ़र्ज़। 
Read more
#9.57 pm #wed #2Feb2016 You can never understand what life actually is. Everyday is just another colour on the canvas of your life. People come & go. They will benefit from you and then will bypass you. Let them do it. Because in that way they will achieve a mental satisfaction, which exactly is not correct. The biggest thing with which you can kill someone is your smile. Don't underrate your smile. Because after all this is the weapon with which you can conquer anyone. But you must not think of that. Because this weapon works automatically! Kill them with their own thinking. Do again & again what makes you feel good. Let them take you as a stupid person & do your work silently,. Let the lights of your work make sound(this may sound insane on scientific level!).   #spreadPeace                                                     ...
Read more
Image
     THREE  BEVERAGES YOU HAVE TO KNOW ACROSS THE WORLD:  1. CACOLAC:                    Cacolac  is a milk-based drink created in 1954 in  Bordeaux ,  France  by the Lanneluc and Lauseig families. Throughout France, it is available in about 70% of all cafés, hotels, and restaurants. Since 1978, it has also been available in grocery stores in glass bottles and cans.    2. MOET & CHANDON :                                                                                                                                 Moët & Chandon  ...
Read more