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Plastic waste can be used for decontamination of water

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Plastic waste can be used for decontamination of water

[vc_row][vc_column][vc_column_text]By Dr. VaishaliLavekar, Pune

Recycling is the only option to handle plastic waste at present. Now Indian scientists have found a new use for plastic waste: for decontamination of water.

Dr Premanjali Rai and Dr Kunwar P Singh from Environmental Chemistry Division, CSIR – Indian Institute of Toxicology Research, Lucknow have used plastic waste to develop  a low-cost magnetically responsive adsorbent material which can be used to remove an antibiotic cephalexin from water.

The indiscriminate burning of plastic results in emission of deadly gases and carcinogens into the environment. Dumping them in landfills results in leaching of toxins into ground and surface water resources. Now scientists have formulated an effective strategy of upcycling polyethylene terephthalate (PET) waste into a functional material to mitigate another critical environmental problem – the emerging levels of antibiotics in water.[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column][vc_column_text]”We collected PET refuse from the surroundings and converted the same  into a magnetically responsive carbon nano-material by carbonization and activation of the PET char under controlled conditions and magnetic modification by a simple chemical precipitation route,” explained Dr Rai.[/vc_column_text][/vc_column][/vc_row][vc_row][vc_column][vc_column_text]

Dr Premanjali Rai

Dr Premanjali Rai

Extensive use and disposal of pharmaceuticals in the environment is leading to its contamination and increasing antibiotic resistance. Widely used antibiotic, Cephalexin, is detected as micropollutant in the environment. “This newly developed low-cost magnetic nanomaterial has the adsorptive potential for cephalexin from the water. The minimal adsorbent dose of 0.4 gram per liter could remove greater than half of the initial cephalexin concentration under laboratory conditions. This technique of magnetic separation for spent adsorbent decreases the secondary pollution problems associated with the non-magneto active adsorbents”, said Dr Rai.

The newly developed adsorbents have considerable desorption potential and can be reused. These advantages make it an efficient adsorbent for removal of emerging micropollutants. These findings will prompt to develop more innovative strategies for non-biodegradable waste management.

This work has been published in the Journal of Environmental Management. The research team included Dr Premanjali Rai and Dr Kunwar P Singh, Environmental Chemistry Division, CSIR – Indian Institute of Toxicology Research, Lucknow. (India Science Wire)[/vc_column_text][/vc_column][/vc_row]

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Samsung Galaxy S25 Ultra and iPhone 16 Pro Max: A comparative look at prices and specs in India

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Samsung Galaxy S25 Ultra with car crash detection feature

Samsung has introduced its latest high-end flagship, the Galaxy S25 Ultra, in India, igniting a new chapter in its ongoing rivalry with Apple’s iPhone 16 Pro Max. Both phones represent the pinnacle of smartphone technology, but they come at distinct price points and offer different specifications that cater to various user preferences.

Price comparison in India

The Galaxy S25 Ultra is available in three variants: the base model with 256GB of storage is priced at Rs 1,29,999; the 512GB model at Rs 1,49,999; and the 1TB version at Rs 1,65,999. These variants are offered in four color options: Titanium Silver Blue, Titanium Gray, Titanium White, and Titanium Black.

In contrast, the iPhone 16 Pro Max starts at Rs 1,44,900 for the 256GB model, with the 512GB and 1TB versions priced at Rs 1,64,900 and Rs 1,84,900, respectively. Samsung’s offerings are notably less expensive across similar storage options, with the 1TB model being nearly Rs 19,000 cheaper than its Apple counterpart.

Specifications face-off

The Samsung Galaxy S25 Ultra boasts a 6.9-inch display, slightly larger than its predecessor, and features a more contemporary design with rounded edges. Despite its larger size, it maintains a lightweight feel at only 218 grams and includes a robust 5,000mAh battery. The camera setup has been significantly upgraded, featuring a 200-megapixel primary sensor paired with a 50-megapixel ultra-wide and a 50-megapixel telephoto lens. It is powered by the Snapdragon 8 Elite for Galaxy, enhancing both efficiency and performance.

The iPhone 16 Pro Max, also with a 6.9-inch display, utilizes Apple’s Super Retina XDR technology with Always-On and ProMotion features for a superior viewing experience. It includes a new gold color option and a novel Camera Control button, adding functionality exclusive to the Pro models. The device is equipped with the A18 Pro chipset and features a redesigned camera system with a 48-megapixel primary sensor and advanced video recording capabilities.

Performance and functionality

Both the Galaxy S25 Ultra and the iPhone 16 Pro Max are designed to offer top-tier performance. Samsung’s flagship includes 12GB of RAM, compared to the iPhone’s 8GB, potentially offering a smoother multitasking experience. The iPhone, however, continues to impress with its integration of hardware and software, leading to efficient performance in real-life usage scenarios.

This detailed examination highlights the strengths of each device, allowing consumers to make an informed decision based on their specific needs and preferences. Whether prioritizing camera technology, display features, or price, the Samsung Galaxy S25 Ultra and iPhone 16 Pro Max cater to all facets of premium smartphone requirements.

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Oppo Find N5 set to launch with 50W wireless charging and IPX9 water resistance

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Oppo Find N5 being tested underwater to showcase its IPX9 water resistance rating.

Oppo has officially confirmed that its latest innovation, the Find N5, will support 50W wireless charging and feature an IPX9 water resistance rating. The announcement comes as part of a series of teases highlighting the capabilities of this next-generation foldable smartphone, set to launch in February.

According to recent leaks, the Find N5 will be the first smartphone to incorporate the Qualcomm Snapdragon 8 Elite SoC, signaling significant performance enhancements. Pete Lau, Oppo’s Chief Product Officer, has touted the device as the “thinnest foldable phone,” positioning it against leading competitors like the latest iPhone in terms of sleek design.

Zhou Yibao, head of the Oppo Find series, shared insights via Weibo about the Find N5’s advanced features. The device not only matches the wireless charging speeds of newly released models like the Oppo Find X8 Pro and OnePlus 13 but also integrates seamlessly with in-car systems from major electric vehicle brands such as BYD and NIO.

In a compelling demonstration of its durability, a recent video posted by Yibao showed the Find N5 being submerged underwater, showcasing its capability to withstand significant water exposure, evidenced by its IPX9 rating. This test included recording underwater videos, highlighting the phone’s versatile camera capabilities in extreme conditions.

The Find N5 also sports a refined design with slimmer borders and a larger overall form factor compared to its predecessors, which could attract users looking for a sleek yet robust foldable phone.

As anticipation builds, Oppo has begun sharing images of the Find N5, revealing a foldable design as thin as a USB-C port when opened. This device promises to merge aesthetic appeal with functional excellence, setting a new benchmark in the evolving foldable phone market.

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Realme 14 Pro series set to launch in India tomorrow: Expected specs, price, and more

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Realme 14 Pro series launch with AMOLED display, Snapdragon 7s Gen 3 processor, and advanced camera setup.

Realme is gearing up to unveil its latest mid-range smartphones, the Realme 14 Pro series, in India on January 16, 2025. The much-anticipated event will also mark the launch of Realme Buds 5 wireless earphones, adding to the excitement among tech enthusiasts.

When and where to watch the launch

The Realme 14 Pro series will be launched at 12 noon on Thursday, January 16. Fans can catch the live-streamed event on Realme’s official YouTube channel.

Realme 14 Pro series specifications (Expected)

The Realme 14 Pro series, including the Realme 14 Pro and Realme 14 Pro+, has already been introduced in China, offering a sneak peek into its features.

The Realme 14 Pro boasts a 6.83-inch Full HD+ AMOLED display with a 120Hz refresh rate and an impressive 3840Hz PWM dimming for superior visuals. Under the hood, the smartphone is powered by the Snapdragon 7s Gen 3 processor, coupled with up to 12GB LPDDR4X RAM and 512GB UFS 3.1 storage. It is expected to run on Android 15 with Realme UI 6.0.

For photography, the device offers a triple-camera setup featuring a 50MP Sony IMX896 primary sensor with OIS, an 8MP ultra-wide lens, and a 50MP Sony IMX882 periscope telephoto lens with up to 6x in-sensor zoom. The front houses a 32MP selfie camera.

Additional features include an in-display fingerprint sensor, IP66, IP68, and IP69 water resistance certifications, and a robust 6,000mAh battery with 80W SuperVOOC fast charging.

Realme 14 Pro+ pricing (Expected)

The Realme 14 Pro+ is expected to be priced at approximately Rs 30,000 for the 12GB RAM/256GB storage variant and Rs 33,000 for the 12GB RAM/512GB version, based on its Chinese pricing of 2,599 yuan and 2,799 yuan, respectively.

As more details about the Realme 14 Pro surface, all eyes will be on tomorrow’s launch event for official specifications and pricing.

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