PMID- 22782087 OWN - NLM STAT- MEDLINE DCOM- 20121105 LR - 20151119 IS - 1361-6528 (Electronic) IS - 0957-4484 (Linking) VI - 23 IP - 30 DP - 2012 Aug 3 TI - Nanoparticles rapidly assess specific IgE in plasma. PG - 305101 LID - 10.1088/0957-4484/23/30/305101 [doi] AB - Allergy is the sixth leading cause of chronic disease in the world. This study demonstrates the feasibility of detecting allergy indicators in human plasma, noninvasively, at the point of care and with a comparable efficiency and reduced turnaround time compared with the gold standard. Peanut allergy was utilized as a model due to its widespread occurrence among the US population and fatality if not treated. The detection procedure utilized magnetic nanoparticles that were coated with an allergen layer (peanut protein extract). Peanut immunoglobulin E (IgE) was detected in concentrations close to the minimum detection range of CAP assay. The results were obtained in minutes compared with the CAP assay which requires more than 3 h. FAU - Ashraf, Sarmadia AU - Ashraf S AD - Center for Research Excellence in Nanobiosciences, University of North Carolina, 321 McIver Street Greensboro, NC 27412, USA. FAU - Qadri, Shahnaz AU - Qadri S FAU - al-Ramadi, Basel AU - al-Ramadi B FAU - Haik, Yousef AU - Haik Y LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't PL - England TA - Nanotechnology JT - Nanotechnology JID - 101241272 RN - 0 (Biomarkers) RN - 0 (Magnetite Nanoparticles) RN - 0 (Plant Proteins) RN - 37341-29-0 (Immunoglobulin E) SB - IM MH - Absorption MH - Arachis/immunology MH - Biomarkers/blood MH - Enzyme-Linked Immunosorbent Assay/instrumentation/*methods MH - Humans MH - Immunoglobulin E/*blood/immunology MH - Magnetite Nanoparticles/*chemistry MH - Models, Immunological MH - Particle Size MH - Peanut Hypersensitivity/blood/immunology MH - Plant Proteins/immunology MH - Spectrometry, Fluorescence EDAT- 2012/07/12 06:00 MHDA- 2012/11/06 06:00 CRDT- 2012/07/12 06:00 PHST- 2012/07/12 06:00 [entrez] PHST- 2012/07/12 06:00 [pubmed] PHST- 2012/11/06 06:00 [medline] AID - 10.1088/0957-4484/23/30/305101 [doi] PST - ppublish SO - Nanotechnology. 2012 Aug 3;23(30):305101. doi: 10.1088/0957-4484/23/30/305101.