Connect with us

Foreign

Researchers print 3D cardiac tissue capable of sustaining pulses

Published

on

By Ernest Ogezi – Researchers in China and their British and Dutch counterparts have printed a cardiac tissue that can survive in vitro and sustain pulses for more than six months.

In fact, 3D bioprinting has demonstrated its advantages as one of the major methods in fabricating simple tissues, yet it still faces difficulties to generate vasculatures and preserving cell functions in complex organ production.

The researchers from the Chinese Academy of Sciences, Tsinghua University, the University of Manchester and Delft University of Technology overcame the limitations of conventional bioprinting systems.

It can convert a six-degree-of-freedom robotic arm into a bioprinter, thus enabling cell printing on 3D complex-shaped vascular scaffolds from all directions.

The research article, recently published in the journal Bioactive Materials, stated that several layers of cells were printed on the scaffold and were co-cultured for a period of time to induce the formation of functional intercellular junctions and new capillaries between the printed cells.

Thereafter, a new round of cell printing was carried out.

The process can form a vascular network similar to the internal organs and support the long-term survival of the printed tissue and organs.

The researchers also developed an oil bath-based cell printing method to better preserve the natural functions of cells after printing.

Together with a self-designed bioreactor and a repeated print-and-culture strategy, the bioprinting system is capable of generating vascularised, contractible, and long-term survived cardiac tissues.

Such bioprinting strategy mimics the in vivo organ development process and presents a promising solution for in vitro fabrication of complex organs, according to the research article.

Continue Reading
Click to comment

Leave a Reply

Your email address will not be published. Required fields are marked *

Foreign

Trump says he will impose tariffs on China, Mexico, and Canada

Published

on

U.S. President-elect Donald Trump on Monday said that, once he returns to the White House, he will impose high import tariffs on all goods from Mexico and Canada as well as additional tariffs on Chinese imports.

Trump said on Truth Social, the social media platform he co-founded, that he would sign an executive order to that effect on his first day in office.

“On January 20th, as one of my many first Executive Orders, I will sign all necessary documents to charge Mexico and Canada a 25 per cent Tariff on ALL products coming into the United States, and its ridiculous Open Borders,” Trump said.

He added that the tariff would remain in place “until such time as Drugs, in particular Fentanyl, and all Illegal Aliens stop this Invasion of our Country!”

“Both Mexico and Canada have the absolute right and power to easily solve this long-simmering problem,” Trump said.

“We hereby demand that they use this power, and until such time that they do, it is time for them to pay a very big price!”

The president-elect also said that additional tariffs of 10 per cent are to apply to goods from China until drugs stop “pouring into our Country, mostly through Mexico.”

“I have had many talks with China about the massive amounts of drugs, in particular Fentanyl, being sent into the United States – But to no avail,” Trump said.

“Representatives of China told me that they would institute their maximum penalty that of death, for any drug dealers caught doing this but, unfortunately, they never followed through, and drugs are pouring into our Country, mostly through Mexico, at levels never seen before.”

Continue Reading

Africa

Customs hands over illicit drugs worth N117.59m to NDLEA

Published

on

Customs hands over illicit drugs worth N117.59m to NDLEA

The Nigeria Customs Service (NCS), Ogun Area 1 Command, has handed over illicit drugs worth N117.59 million to the National Drug Law Enforcement Agency (NDLEA).

The Comptroller of the command, Mr James Ojo, disclosed this during the handing over of the drugs to Mr Olusegun Adeyeye, the Commander of NDLEA, Idiroko Special Area Command, in Abeokuta, Ogun, on Friday.

Ojo said the customs handed over the seized cannabis and tramadol tablets to the Idiroko Special Command for further investigation in line with the standard operating procedures and inter-agency collaboration.

He said the illicit drugs were seized  in various strategic locations between January and November 21, 2024, in Ogun State.

He added that the illicit drugs were abandoned at various locations, including the Abeokuta axis, the Agbawo/Igankoto area of Yewa North Local Government Area, and Imeko Afton axis.

Ojo said that the seizure of the cannabis sativa and tramaling tablets, another brand of tramadol, was made possible through credible intelligence and strategic operations of the customs personnel.

“The successful interception of these dangerous substances would not have been possible without the robust collaboration and support from our intelligence units, local informants and sister agencies.

“These landmark operations are testament to the unwavering dedication of the NCS to safeguard the health and well-being of our citizens and uphold the rule of law,” he said.

He said the seizures comprised 403 sacks and 6,504 parcels, weighing 7,217.7 kg and 362 packs of tramaling tablets of 225mg each, with a total Duty Paid Value of N117,587,405,00.

He described the height of illicit drugs smuggling in the recent time as worrisome.

This, he said, underscores the severity of drug trafficking within the borders.

“Between Oct. 13 and Nov. 12 alone, operatives intercepted a total of 1,373 parcels of cannabis sativa, weighing 1,337kg and 362 packs of tramaling tablets of 225mg each,” he said.

Ojo said the seizures had  disrupted the supply chain of illicit drugs, thereby mitigating the risks those substances posed to the youth, families and communities.

He lauded the synergy between its command, security agencies and other stakeholders that led to the remarkable achievements.

Ojo also commended the Comptroller General of NCS for creating an enabling environment for the command to achieve the success.

Responding, Adeyeye, applauded the customs for achieving the feat.

Adeyeye pledged to continue to collaborate with the customs to fight against illicit trade and drug trafficking in the state.

Continue Reading

Africa

Ann-Kio Briggs Faults Tinubu for Scrapping Niger Delta Ministry

Published

on

Prominent Niger Delta human rights activist and environmentalist, Ann-Kio Briggs, has criticised President Bola Tinubu’s decision to scrap the Ministry of Niger Delta, describing it as ill-advised and detrimental to the oil-rich region.

Briggs expressed her concerns during an appearance on Inside Sources with Laolu Akande, a socio-political programme aired on Channels Television.

“The Ministry of Niger Delta was created by the late (President Umaru) Yar’Adua. There was a reason for the creation. So, just removing it because the president was advised. I want to believe that he was advised because if he did it by himself, that would be terribly wrong,” she stated.

President Tinubu, in October, dissolved the Ministry of Niger Delta and replaced it with the Ministry of Regional Development, which is tasked with overseeing all regional development commissions, including the Niger Delta Development Commission (NDDC), North-West Development Commission, and North-East Development Commission.

Briggs questioned the rationale behind the restructuring, expressing concerns about its feasibility and implications. “But that’s not going to be the solution because who is going to fund the commissions? Is it the regions because it is called the Regional Development Ministry? Is it the states in the regions? What are the regions because we don’t work with regions right now; we are working with geopolitical zones,” she remarked.

She added, “Are we going back to regionalism? If we are, we have to discuss it. The president can’t decide on his own to restructure Nigeria. If we are restructuring Nigeria, the president alone can’t restructure Nigeria, he has to take my opinion and your opinion into consideration.”

Briggs also decried the longstanding neglect of the Niger Delta despite its significant contributions to Nigeria’s economy since 1958. “The Niger Delta has been developing Nigeria since 1958. We want to use our resources to develop our region; let regions use their resources to develop themselves,” she asserted.

Reflecting on the various bodies established to address the region’s development, Briggs lamented their failure to deliver meaningful progress. She highlighted the Niger Delta Basin Authority, the Oil Mineral Producing Areas Development Commission (OMPADEC), and the NDDC as examples of ineffective interventions.

“NDDC was created by Olusegun Obasanjo…There was OMPADEC before NDDC. OMPADEC was an agency. Before OMPADEC, there was the Basin Authority…These authorities were created to help us. Were we helped by those authorities? No, we were not,” she said.

Briggs further described the NDDC as an “ATM for failed politicians, disgruntled politicians, and politicians that have had their electoral wins taken away from them and given to somebody else.”

Her remarks underscore the deep-seated frustrations in the Niger Delta, where residents continue to advocate for greater control over their resources and improved governance.

Continue Reading

You May Like

Copyright © 2024 Acces News Magazine All Right Reserved.

Verified by MonsterInsights