Publications by authors named "P K Purushothaman"

Latent fingerprint imaging is a crucial tool for national security and crime recognition, requiring environmentally sustainable, nontoxic materials. To address this need, we have developed a green fluorescence-emitting material, THCHO, that binds effectively to latent fingerprints, enabling clear, high-resolution visualization. The solution produces strong green fluorescence that highlights fingerprint imprints with exceptional detail and contrast.

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  • Floating hip and floating knee injuries are severe, often resulting from high-velocity accidents, and demand prompt medical and orthopedic care to help the patient regain limb function.
  • A case study of a 32-year-old man involved in a traffic accident showed multiple fractures, including serious injuries to his left hip and knee, leading to a staged surgical intervention and rehabilitation plan.
  • The patient successfully recovered, achieving full weight-bearing ability within four months, with all fractures healed by six months and excellent functional mobility at 18 months post-injury.
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  • Recent studies found genetic variants in 1% of patients without pseudohypoparathyroidism, highlighting a new missense variant, c.791A > C, p.(Asp264Thr), linked to obesity and hyperphagia in a family.
  • A 6-year-old girl and her 12-year-old brother both exhibited obesity, hyperphagia, and developmental delays, alongside physical traits like brachydactyly and macrocephaly.
  • Functional tests revealed that the mutant GNAS gene resulted in reduced cAMP production when stimulated, indicating potential new genetic links to obesity, and suggesting testing for PHP1A in children may be necessary even when traditional symptoms are absent.
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  • The design and structure of hole-transporting materials (HTMs) are key to improving the efficiency of eco-friendly perovskite solar cells (PSCs) by preventing issues like corrosion and charge recombination.
  • Current HTMs have limitations such as high production costs and low stability, highlighting the need for affordable alternatives, particularly those derived from thiophene, which can enhance performance by interacting with surface defects in the perovskite layer.
  • Thiophene-based HTMs offer benefits like better passivation, increased environmental stability, and effective charge transfer, making them a promising solution for developing more durable and efficient solar cells.
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