18 June 2025: PIB Summary For UPSC

1. EV-based Waste Collection under SBM-U

(Source – PIB (Press Information Bureau), June 18, 2025)

Content

• Guntur: Over 200 electric autos deployed—saving ~71,000 L diesel/year, cutting ~21,000 t CO₂ over 10 years; includes GPS for monitoring.

• Chennai: 5,478 battery–rickshaws in 15 zones; daily reduction ~41 t CO₂ (~15,160 t annually); support source segregation with audio campaigns.

• Indore: 100 EVs replacing diesel trucks in core zones; annual CO₂ cut ~24,918 t; saves ₹5.97 Cr/year; supports 20 solar charging stations.

• Benefits: Zero emissions, noise reduction, cost-effective operations, employment generation (6,000+ jobs), improved segregation awareness.

• Way Forward: Expand EV fleets, boost solar infrastructure, integrate tech & awareness strategies across more urban areas.

2. Simplified Synthesis of PEG‑coated Nano‑Cups for PTT

(Source – PIB (Press Information Bureau), June 17, 2025)

Content

• Innovation: One‑step room-temperature colloidal synthesis of PEG‑coated gold semi‑shell “nano‑cups” at INST Mohali, with ACTREC & IIT Bombay.

• Advantages: Avoids toxic etching (e.g. HF), uses Vitamin C and ZIF‑8 MOF template; no specialized equipment needed.

• Properties: Strong NIR absorption, high photothermal conversion, PEG offers stability, biocompatibility, cryo-preservation.

• Bio‑efficacy: Demonstrated destruction of metastatic breast tumors in mice; improved survival, minimized relapse.

• Future Prospects: Chemo‑photo therapy integration, SERS‑based biosensing applications, potential clinical trials.

• Way Forward: Advance clinical validation, explore targeted delivery, scale-up eco-friendly production methods.

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