Science & Technology Current Affairs MCQs

Notes:
Recently, an eight-week study in Brazil found that Kombucha improves gut bacteria in people with obesity by increasing good microbes and reducing harmful ones. However, it did not improve blood sugar or inflammation markers. Kombucha is a fermented tea that offers complex flavors without much sugar or caffeine. It originated in northeast China around 220 BCE and was known for its energizing and detoxifying effects. Kombucha is becoming popular in India, with the market growing from 45 million in 2020 to 102 million in 2024.

Notes:
Recently, a deadly accident occurred at the pharma unit of Sigachi Industries in Hyderabad, raising the death toll to 36. The unit manufactures Microcrystalline Cellulose (MCC). Microcrystalline Cellulose (MCC) is a free-flowing powder extracted from refined wood pulp. It is inert, nontoxic, fiber-rich, chewable, and not absorbed during digestion. Wood is the main source of pharmaceutical MCC, with cellulose chains bound by polymers and hydrogen bonds.

Notes:
The world’s first-ever malaria treatment suitable for babies and very young children has been approved for use. Drug manufacturer Novartis has received approval from Swiss authorities for its new malaria drug named Coartem. The development of the drug is very significant, as the overwhelming majority of malaria-related deaths occur in the under-five age group. Most malaria-related deaths are recorded on the African continent. Malaria accounted for more than half a million deaths worldwide in 2023.

Notes:
Recently, Microsoft introduced BioEmu, an advanced Artificial Intelligence (AI) system for simulating protein motion to accelerate drug discovery. The system is officially named Biomolecular Emulator-1 (BioEmu-1). BioEmu-1 is a deep learning model that can generate thousands of protein structures per hour using a single Graphics Processing Unit (GPU). Proteins are vital for biological processes like muscle formation and disease protection. Earlier, predicting protein structures from amino acid sequences was difficult. BioEmu-1 offers deeper insights into protein behavior, which is crucial for developing effective medicines.

Notes:
Indian Institute of Technology (IIT) Madras recently launched YD One, India’s lightest active wheelchair. It is the first indigenously developed precision-built mono-tube rigid-frame wheelchair in India. It is developed by TTK Center for Rehabilitation Research and Device Development (R2D2) at IIT Madras and Thryv Mobility startup. It aims to offer affordable, high-performance mobility and reduce dependence on costly imports.

Notes:
Kerala has recently introduced the Cy-TB skin test to detect Latent Tuberculosis Infection (LTBI) under the National TB Elimination Programme (NTEP). Cy-TB is a new-generation intradermal skin test using Mycobacterium tuberculosis-specific antigens called ESAT-6 and CFP-10. It is more accurate than Mantoux or IGRA (Interferon-Gamma Release Assay) tests and does not need blood samples. It helps in early detection of dormant TB to prevent it from becoming active. It is used for adults above 18, especially in high-risk or contact groups.

Notes:
Recently, NASA’s Hubble Space Telescope captured the first detailed images of interstellar comet 3I/ATLAS as it passed through our solar system. This offers scientists a rare chance to study a comet originating from another star system. Comets are ancient objects made of dust and ice that orbit the Sun and are leftovers from the solar system’s formation around 6 billion years ago. They are best known for their long, glowing tails. A comet has four visible parts: nucleus, coma, ion tail, and dust tail. This discovery helps scientists better understand the nature of interstellar objects and early solar system formation.

Notes:
Iran successfully launched its Nahid-2 telecommunications and research satellite on 27 July 2025. The launch was done aboard a Russian Soyuz rocket as part of a multi-payload mission. Other payloads included Russia’s Unisphere-M3 and M4 and 18 satellites from various countries. The Soyuz rocket had earlier launched Iranian satellites like Khayyam, Pars-1, Kosar, and Hodhod. Nahid-2 is designed to stay in orbit for five years. It has an indigenous propulsion system that can adjust its altitude by up to 50 kilometers. This propulsion is key for maintaining orbital position and operational stability.

Notes:
Indian space-tech startup Dhruva Space is set to launch its first commercial satellite mission named LEAP-1. LEAP-1 will carry payloads for Artificial Intelligence (AI) and Earth observation. It uses the indigenously developed P-30 satellite platform, which was space-qualified on ISRO’s PSLV-C58 in January 2024 during the LEAP-TD mission. The mission is jointly developed by Dhruva Space, Akula Tech (Australia), and Esper Satellites (Australia).

Notes:
Recently, IIT Roorkee developed a new drug candidate, Compound 3b, to fight deadly drug-resistant bacteria. It targets KPC-2-producing Klebsiella pneumoniae, a World Health Organization (WHO) top-priority superbug. Compound 3b is a β-lactamase inhibitor that stops bacterial enzymes from breaking down antibiotics. It works with the antibiotic Meropenem, restoring its effectiveness against resistant infections. Preclinical lab and animal tests showed major infection reduction in lungs and safety to human cells. It marks a major step against antimicrobial resistance and boosts India’s role in global biomedical research.