Journal
ANALYTICAL BIOCHEMISTRY
Volume 644, Issue -, Pages -Publisher
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.ab.2020.113894
Keywords
Aptamers; Targeted delivery; Beacons; Ce l l imag i n g; Imaging RNA; Ce l l capture; Bi-specific aptamers; Protein detection; Food and water analysis; Smartphones
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This article provides an introduction to the definition, origin, and development of aptamers, and categorizes and summarizes recent original research publications. The article presents nine categories of aptamer applications and provides representative examples for each category. Finally, an outlook on future innovations in the field of aptamer applications is provided.
Aptamers are typically defined as relatively short (20-60 nucleotides) single-stranded DNA or RNA molecules that bind with high affinity and specificity to various types of targets. Aptamers are frequently referred to as synthetic antibodies but are easier to obtain, less expensive to produce, and in several ways more versatile than antibodies. The beginnings of aptamers date back to 1990, and since then there has been a continual increase in aptamer publications. The intent of the present account was to focus on recent original research publications, i.e., those appearing in 2019 through Apri l 2020, when this account was written. A Google Scholar search of this recent literature was performed for relevance-ranking of articles. New methods for selection of aptamers were not included. Nine categories of applications were organized and representative examples of each are given. Finally, an outlook is offered focusing on faster, better, cheaper application performance factors as key drivers for future innovations in aptamer applications.
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