Abstract
LAMP (loop-mediated isothermal amplification) has proven to be a highly robust, sensitive, and cost-effective method for detecting specific target nucleic acid sequences in a single-tube reaction without the need for sophisticated instruments. Traditionally, pH-sensitive dyes, DNA-binding dyes like Ethidium Bromide(EtBr), and SYBR have been employed to detect amplified products. However, these dyes present several drawbacks, limiting the widespread adoption of LAMP in diagnostic applications. To address this limitation, a novel dye called tinto rangTM has been introduced with promising applications in nucleic acid analysis. In this study, we present an evaluation of tinto rangTM's performance in comparison to commercially available dyes commonly used in LAMP assays. One of the unique advantages of tinto rangTM is its capability to facilitate the analysis of amplified nucleic acid products through three distinct methods: visual color change, changes in relative fluorescence, and turbidity. In addition to assessing tinto rangTM's performance, we also investigated various approaches to tackle the issue of non-specific amplification, which has been a common challenge in LAMP reactions. The experimental results unequivocally demonstrate that tinto rangTM outperforms pH-indicating and other DNA-binding dyes used in LAMP assays, making it a superior alternative. This study paves the way for the broader adoption of tinto rangTM in various applications, including point-of-care diagnostics, disease monitoring, and molecular biology research.
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