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Fish-shaped nanorobotics have been created to aid in the delivery of medicine in vivo

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Chinese researchers have 3D-printed nanostructures with a sub-15 nm resolution using genetically engineered recombinant spider silk proteins, which are intended to be used in bionic perception and nanorobots for drug delivery and other applications in the future.

The nano fishes with barbels can “swim” in the human body’s glucose-containing environment, and certain parameters are set to inhibit the release of the medicine that the nanodevices contain.

The scientists took specific gene sequences from natural spider silks, the hardest fiber in nature, and then cultivated the portion in Escherichia coli to manufacture the proteins required to create such nano fishes.

According to Tao Hu, a researcher at the Chinese Academy of Sciences’ Shanghai Institute of Microsystem and Information Technology, the finest part of the nanorobotics, the barbel, is only 50 nanometers thick, or roughly one-thousandth the diameter of a human hair.

Biofuel-powered nanorobotics relies on adjusting enzyme activities and a sequence of chemical processes primarily involving glucose inside the human body to form oxygen bubbles in order to achieve directional motion control. Meanwhile, they can decay under specific conditions such as light, pH, and heat, causing no harm to the human body, according to the report. The work was published in the journal Nature Communications online.

 

Source: Xinhua News Agency

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Coral bleaching alert level raised from ‘watch’ to ‘warning’

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The coral bleaching alert level in the Maldives has been raised from ‘watch’ to ‘warning’, with the Maldives Marine Research Institute warning it may soon rise further to the highest alert level in the north and southern Maldives.

Coral bleaching is when corals turn white due to various stressors. However, the leading cause of coral bleaching is climate change.

The world is currently experiencing the fourth global coral bleaching event, and the second one within the span of the year.

The MMRI said in a statement that it is now receiving reports of widespread coral bleaching across the Maldives.

According to the National Oceanic and Atmospheric Administration (NOAA), which runs a Coral Reef Program, the latest satellite images show the bleaching alert level in the Maldives is now at ‘warning’ level – the third highest warning level – up from ‘watch’ just a month ago.

The MMRI warned that the alert level is expected to rise to ‘alert level 1’ within one week.

“It is also possible that areas in the north and south of Maldives will reach ‘alert level 2’,” warned the institute.

Maldives experienced its first widespread coral bleaching incident in 1998.

According to MMRI, such incidents have increased in frequency.

The institute also warned that human activities may impede coral recovery.

“While Maldives’ corals recover faster after bleaching incidents compared to other countries, the impact of human activities at such a time could slow down recovery and even obstruct it,” warned the institute.

Human activities that may impede coral recovery include dredging, land reclamation and beach nourishment.

“Such activities have a negative impact on coral reef ecosystems, even if it’s is just temporary,” said the MMRI.

“We urge all parties to suspend activities that may raise coral stress level, amid forecasts of coral bleaching incidents due to the warming ocean temperature.”

MMRI also urged all parties to report coral bleach incidents to the institute.

Source(s): sun.mv

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Land up for sale from two phases of Thilafushi

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Housing Development Corporation (HDC) has announced the sale of land from Phase I and Phase II of the industrial island of Thilafushi, exclusively for Maldivian citizens.

Total 108 plots are available for industrial purposes from Thilafushi Zone A, Area B.

  • Type 1: 2,500-4,999 square feet, 64 plots
  • Type 2: 5,000-9,999 square feet, 42 plots
  • Type 3: 10,000-14,999 square feet, 2 plots

The sale of land will be carried out in two phases; the submission of Expression of Interest (EOI) and, in cases where a plot receives more than one EOI, it will go to bidding.

The minimum bid price is MVR 1,700 per square feet.

Interested parties can submit their bids via HDC’s portal or via email to sales@hdc.mv.

Meanwhile, the opportunity has also been opened for parties who have leased land from Phase I of Thilafushi to purchase the plot. The opportunity is open for parties who have leased land the size of 5,000 square feet or more.

Thilafushi is being developed as the main industrial and business hub in the greater Male’ region.

Source(s): sun.mv

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UN report: Conflict could set Gaza development back four decades

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The development of Gaza could face a retrogression by over four decades if the current Palestinian-Israeli conflict was to last for nine months, according to a UN report.

The report, issued on Thursday, reveals a joint study by the UN Development Programme and the Economic and Social Commission for Western Asia (ESCWA), which warns of sharp decline in the Human Development Index (HDI), a summary measure of well-being, in the Gaza Strip and Palestine amid the ongoing Palestinian-Israeli conflict.

The study showed that after nine months of the conflict, the HDI for Gaza could fall to 0.551, setting back progress by 44 years. For Palestine, development could retrogress by more than 20 years – to earlier than 2004.

“This assessment projects that Gaza will be rendered fully dependent on external assistance on a scale not seen since 1948, as it will be left without a functional economy, or any means of production, self-sustainment, employment, or capacity for trade,” said ESCWA Executive Secretary Rola Dashti.

As the conflict approaches its seventh month, the poverty rate in Palestine has surged to 58.4 percent and its GDP has plunged by 26.9 percent, resulting in a loss of $7.1 billion from a 2023 no-war baseline, the UN report showed.

At least 34,596 Palestinians have been killed and 77,816 wounded in Israeli attacks on Gaza since October 7, according to latest update by Palestine’s health ministry.

Hamas said on Thursday it is studying Israeli ceasefire proposals in a “positive spirit” and a delegation is set to visit Egypt soon for further talks, as Israel reiterates it will attack Gaza’s southernmost city of Rafah regardless.

Meanwhile, Israel launched an aerial attack from the direction of the occupied Golan Heights on Thursday night against a military site near the Syrian capital of Damascus, injuring eight soldiers and causing material losses, the Syrian Defense Ministry said.

The targeted areas are known strongholds for elements of Hezbollah and Iranian-backed militias, according to the observatory in Syria.

This attack follows a reported decline in Israeli attacks over the past month, which the Syrian observatory’s director attributed to the strikes on the Iranian consulate in Damascus on April 1.

Iran on Thursday announced sanctions on several American and British individuals and entities for supporting Israel in its war against Hamas. The sanctions include prohibiting accounts and transactions in the Iranian financial and banking systems, and blocking assets within the jurisdiction of Iran as well as visa issuance and entry to the Iranian territory.

Türkiye also announced the halt of all trade activities with Israel as of Thursday until the latter allows the flow of humanitarian aid to the region, said the Turkish trade ministry.

A Shiite militia in Iraq on Thursday claimed responsibility for a missile attack on three sites in the cities of Tel Aviv and Be’er Sheva in Israel “in solidarity with the people of Gaza,” and pledged to persist in targeting the “enemy’s strongholds.” The group has launched multiple attacks on Israeli and U.S. bases in the region since the Gaza conflict broke out.

Source(s): CGTN

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