12px13px15px17px
Date:16/05/19

Light-activated bio-glue that moves with beating heart has potential for human use

Uncontrolled bleeding during surgery can cause death. What if, instead of slow surgical stitching, you could rapidly glue a wound together?
 
A new "bio-glue" -- an experimental adhesive gel that is activated by a flash of light -- has been proven to stop high pressure bleeding in the hearts of pigs.
 
Additional research confirming the safety of this product is needed before experiments can begin in humans, according to the authors of a study published Wednesday in the journal Nature Communications.
 
Around the globe, more than 234 million surgeries are performed each year, the World Health Organization estimates.
 
Surgical suturing is especially difficult when dealing with diseased, damaged or small blood vessels, according to the study authors. Existing surgical products, such as Fibrin Glue and Surgiflo, have been effective in stopping bleeding during surgeries, but they take minutes to set and in some cases require additional stitching.
 
Numerous attempts have been made to create improved and swifter-acting surgical adhesives, but few nontoxic materials can meet the criteria of holding fast on wet tissues while resisting pressure and the movement of a beating heart.
 
A team of researchers from Zhejiang University School of Medicine in Hangzhou, China, accepted the challenge.
 
Inspired by the matrix composition of human connective tissues, they created a gel composed of a network of proteins and other molecules. The product, which requires ultraviolet light to activate, can adhere within seconds and then bond to wet biological tissue surfaces.
 
In early experiments, the research team showed that their bio-glue could seal wounds to pig livers.
 
Next, they demonstrated that wounds and punctures of hearts -- among the most difficult of surgical challenges -- could also be sealed using only the bio-glue, no stitches.
 
In pigs, the bio-glue sealed a punctured carotid artery, a major blood vessel in the neck, in less than a minute and also filled holes in the cardiac wall. The Chinese researchers monitored their post-surgical pigs for a two-week recovery period and saw natural healing with no abnormalities or unusual inflammation.
 
The surgical repairs can withstand a systolic blood pressure reading of up to 290 millimeters of mercury, or mmHg, which is "significantly higher" than systolic readings seen by most doctors (the usual range is between 60 and 160), the study authors noted.
 
"Most importantly, the hydrogel can stop high-pressure bleeding from pig carotid arteries with 4~ 5 mm-long incision wounds and from pig hearts with 6 mm diameter cardiac penetration holes."
 
Based on these early experiments, the bio-glue shows promise for use in human surgeries and to stop emergency bleeding, the authors concluded.
 





Views: 37

©ictnews.az. All rights reserved.

Facebook Google Favorites.Live BobrDobr Delicious Twitter Propeller Diigo Yahoo Memori MoeMesto






24 May 2019

24/05/19
Schoolchildren in Shabran were informed about internet opportunities and threats

Aztelecom LLC of the Ministry of Transport, Communications and High Technologies held a seminar on the subject

24/05/19
Startup tour held in Shaki within project "I2B – From Idea to Business"

The startup tours held within the framework of the project “I2B – From Idea to Business” organized jointly by

24/05/19
Worldwide Connected Vehicle Shipments Forecast to Reach 76 Million Units by 2023, According to IDC

In its inaugural connected vehicle forecast, International Data Corporation (IDC) estimates that worldwide shipments

24/05/19
Facebook Removes a Record 2.2 Billion Fake Accounts

Facebook Inc. said it removed 2.2 billion fake accounts in the first quarter, a record that shows how the company

24/05/19
Samsung Galaxy A70S Will Be the World’s First Smartphone With a 64-Megapixel Camera: Report

Samsung launched its Galaxy A70 smartphone globally in March this year. The phone features an Infinity

24/05/19
Amazon Is Working on a Device That Can Read Human Emotions

Amazon.com Inc. is developing a voice-activated wearable device that can recognize human emotions.

24/05/19
Apple again becomes world’s most valuable brand

Apple has topped the list of the world’s most valuable brands for the ninth year in a row alongside a slew of tech titans.

24/05/19
Atom Power releases new UL-listed digital circuit breaker to intelligently manage DERs

Atom Power announced its innovative digital circuit breaker technology is now UL-listed. The company says this

24/05/19
Persistence of Chaos: Laptop infected with world’s most dangerous malware up for sale

“The Persistence of Chaos combines the six most dangerous viruses of all time on one laptop. The art project 

23 05 2019

23/05/19
International workshop on “ICT infrastructure as basis for digital economy” held

An international workshop on “ICT infrastructure as basis for digital economy” was held for Europe and the CIS 

23/05/19
SPbSUT scientists developing sound-based data transfer protocol

Scientists from the Radio Communications & Broadcasting Department of the Bonch-Bruevich Saint-Petersburg

23/05/19
Scientists will create a protection system that will detect up to 98% of cyber attacks

A group of Russian scientists from the Information Security Center of Innopolis University are working to create 

23/05/19
Information boards were installed at the transport hub of the Baku International Bus Terminal Complex

Information boards have been installed at the transport hub, which was recently commissioned at the auxiliary

23/05/19
WhatsApp will show ads in Status section starting next year

Starting next year WhatsApp will display advertisements in the Status section, a feature it calls Status Ads.

23/05/19
Baku Telephone Communications LLC increases capacity of wireless communication network before summer season

Given the upcoming summer-season influx of residents of the capital to Baku’s suburbs, as in the previous years,

23/05/19
Building built in Guba for Garabagh war veterans provided with communication services

Aztelecom LLC of the Ministry of Transport, Communications and High Technologies has provided the building

23/05/19
First official version of Tor Browser for Android released on the Play Store

The Tor Project has released on the Google Play Store the first stable version of the Tor Browser for Android.

23/05/19
DDoS Attacks on the Rise After Long Period of Decline

Last year there was a significant drop in DDOS attack detection. However, according to a new survey by Kaspersky 

23/05/19
Samsung announces ultra-slim 5X Optical zoom camera module

Samsung Electro-Mechanics commenced its sojourn in the camera module market in 2003 and since then, the

23/05/19
Ford taps Agility Robotics’ bipedal robot to test package delivery

In the future, humanoid robots will emerge from driverless vans to deliver parcels to your doorstep. That’s the