Performance assessment of seven SARS-CoV-2 IgG enzyme-linked immunosorbent assays.

The pandemic of COVID-19 has caused enormous fatalities worldwide. Serological assays are important for detection of asymptomatic or mild cases of COVID-19, and sero-prevalence and vaccine efficacy studies. Here, we evaluated and compared the performance of seven commercially available enzyme-linked immunosorbent assay (ELISA)s for detection of anti-severe acute respiratory syndrome corona virus 2 (SARS-CoV-2) immunoglobulin G (IgG).

Electron-Transparent Thermoelectric Coolers Demonstrated with Nanoparticle and Condensation Thermometry.

More efficient thermoelectric devices would revolutionize refrigeration and energy production, and low-dimensional thermoelectric materials are predicted to be more efficient than their bulk counterparts. But nanoscale thermoelectric devices generate thermal gradients on length scales that are too small to resolve with traditional thermometry methods. Here we fabricate, using single-crystal bismuth telluride (BiTe) and antimony/bismuth telluride (SbBiTe) flakes exfoliated from commercially available bulk materials, functional thermoelectric coolers (TECs) that are only 100 nm thick.

Sinonasal adenoid cystic carcinoma-role of on-site FNAC: a case report.

Background: Adenoid cystic carcinoma (ACC), a rare tumor of epithelial cell origin, commonly arises from the major salivary glands. Uncommonly it may be found outside the salivary glands and it's especially rare in the nasal cavity.

Case Presentation: A 71-year female had complaints of swelling at the base of nose, Fine needle aspiration (FNA) from the swelling revealed features of adenoid cystic carcinoma; cell block & IHC for CD-117 was positive.

Disseminated histoplasmosis in an immunocompetent patient - utility of skin scrape cytology in diagnosis: a case report.

Background: Histoplasma capsulatum is a dimorphic fungus predominately found in soils enriched with bird and bat excreta. Although several cases of histoplasmosis have been reported in India, diagnosis using cytology has been done in very few cases.

Case Presentation: We report here a case of disseminated histoplasmosis in a 46-year-old Indian man.

Incidental detection of two adult gravid filarial worms in breast: a case report.

Background: Microfilaria is a major public health problem in tropical and subtropical countries and is an endemic problem in India. Wuchereria bancrofti is the commonest filarial infection. In some lesions, microfilariae and adult filarial worm have been incidentally detected in fine-needle aspirates.

Loose cell clusters with vascular coats: Zellballen pattern of paraganglioma on cytology.

Paragangliomas are uncommon tumors arising in paraganglion tissue, which is well represented in the head and neck. A correct pre-operative cytological diagnosis helps in planning early and optimal surgery. Cytologic features in carotid body tumor and extra adrenal paragangliomas have been well described and documented.