AcuTech Scientific Inc. (ATS) articles

Abstract:

Researchers from the City University of New York, West Virginia University, the New York Police Department Crime Lab, and The Metropolitan Museum of Art have formed a multidisciplinary collaboration to further the application of Raman spectroscopy and non-destructive surface-enhanced Raman scattering (SERS) analysis techniques as applied to the evaluation of trace evidence and the examination of questioned documents. Through the sharing of instrumentation

Abstract

We report on a facile immunoassay for porcine circovirus type 2 (PCV2) based on surface enhanced Raman scattering (SERS) using multi-branched gold nanoparticles (mb-AuNPs) as substrates. The mb-AuNPs in the immunosensor act as Raman reporters and were prepared via Tris base-induced reduction and subsequent reaction with p-mercaptobenzoic acid (pMBA). They possess good stability and high SERS activity. Subsequently, the modified mb-AuNPs were covalently con

I. INTRODUCTION

Currently gastric cancer is the second leading cause of cancerassociated death; accounting for approximately 600 000 annual deaths worldwide.1 The patients with gastric cancer have poor survival rates mainly due to the advanced stages upon the initial time of diagnosis when cancer cells have metastasized into other parts of the body. Early diagnosis and localization of malignant lesions together with appropriate curative treatment is critical to red

Raman spectroscopy is an established laser-based technology for the quality assurance of pharmaceutical products. Over the past few years, Raman spectroscopy has become a powerful diagnostic tool in the life sciences. Raman spectra allow assessment of the overall molecular constitution of biological samples, based on specific signals from proteins, nucleic acids, lipids, carbohydrates, and inorganic crystals. Measurements are non-invasive and do not require sample processing, making Raman spe

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Research Objectives

• To validate SERS in a forensic context, and show the conditions under which Raman spectroscopy and especially SERS contribute to the value of forensic science.
• To compare both SERS and normal Raman spectra, and to explore the conditions in which each may be of value.
• To validate certain specialized SERS techniques
• To provide useful protocols for use of field workers
• To provide a searchable database for

Abstract

The objective of this presentation is to discuss the results of the evaluation studies conducted on four commercially available field-portable Raman spectrometers. The data presented in this comparison will affect the forensic science community by assisting a prospective user in determining which portable Raman device may best suit their agency’s needs. This presentation describes:

• The specifications of the four portable Raman instruments