Category Ranking

98%

Total Visits

921

Avg Visit Duration

2 minutes

Citations

20

Article Abstract

DNA nanotechnology, and DNA computing in particular, has grown extensively over the past decade to end with a variety of functional stable structures and dynamic circuits. However, the use as designer elements of regular DNA pieces, perfectly complementary double strands, has remained elusive. Here, we report the exploitation of CRISPR-Cas systems to engineer logic circuits based on isothermal strand displacement that perform with toehold-free double-stranded DNA. We designed and implemented molecular converters for signal detection and amplification, showing good interoperability between enzymatic and nonenzymatic processes. Overall, these results contribute to enlarge the repertoire of substrates and reactions (hardware) for DNA computing.

Download full-text PDF

Source
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8489798PMC
http://dx.doi.org/10.1021/acssynbio.0c00649DOI Listing

Publication Analysis

Top Keywords

strand displacement
8
logic circuits
8
dna computing
8
dna
6
crispr-mediated strand
4
displacement logic
4
circuits toehold-free
4
toehold-free dna
4
dna dna
4
dna nanotechnology
4

Similar Publications

Rational design of tunable pH switches through shadow-strand hybridization-actuated displacement engineering.

Nucleic Acids Res

September 2025

Key Laboratory of Clinical Laboratory Diagnostics (Chinese Ministry of Education), College of Laboratory Medicine, Chongqing Medical University, Chongqing 400016, P. R. China.

Local pH variations play a pivotal role in numerous critical biological processes. However, achieving the tunability and selectivity of pH detection remains a challenge. Here, we present a DNA-based strategy that enables programmable and selective pH responses, which is termed shadow-strand hybridization-actuated displacement engineering (SHADE).

View Article and Find Full Text PDF

Ultrasensitive multifunctional biosensor integrating ECL quenching and DPV enhancement for early classification of thyroid cancer via BRAF V600E and microRNA-221 detection.

Biosens Bioelectron

September 2025

College of Chemistry, Jilin Province Research Center for Engineering and Technology of Spectral Analytical Instruments, Jilin University, Qianjin Street 2699, Changchun, 130012, China. Electronic address:

Papillary thyroid carcinoma (PTC) is the most prevalent form of thyroid cancer with a high incidence among endocrine malignancies. It tends to metastasize early in lymph nodes and differs markedly from other subtypes in biological behavior, clinical management, and prognosis. Therefore, accurately distinguishing PTC from other pathological subtypes is crucial for guiding diagnosis and treatment decisions.

View Article and Find Full Text PDF

DNA data storage is a promising alternative to conventional storage due to high density, low energy consumption, durability, and ease of replication. While information can be encoded into DNA via synthesis, high costs and the lack of rewriting capability limit its applications beyond archival storage. Emerging "hard drive" strategies seek to encode data onto universal DNA templates without de novo synthesis, using methods such as DNA nanostructures and base modifications.

View Article and Find Full Text PDF

A cascade amplification platform integrating entropy-driven DNA nanomachine with CRISPR/Cas12a for microRNA-21 and Listeria monocytogenes detection.

Biosens Bioelectron

September 2025

State Key Laboratory for Diagnosis and Treatment of Severe Zoonotic Infectious Diseases, Key Laboratory for Zoonosis Research of the Ministry of Education, School of Public Health, Jilin University, Changchun, 130021, China. Electronic address:

As one of enzyme-free amplification strategies, entropy-driven catalytic (EDC) based on toehold-mediated strand displacement reaction could achieve efficient amplification without cumbersome temperature changing and expensive enzymes, which shows great potential in biological sensing. However, the limitations in reaction velocity and sensitivity need to be further improved. Herein, a cascade platform integrating entropy-driven DNA nanomachine with CRISPR/Cas12a was proposed.

View Article and Find Full Text PDF

Overcoming the Speed Limit of Four-Way DNA Branch Migration with Bulges in Toeholds.

Nano Lett

September 2025

School of Mathematics and Physics, Faculty of Engineering and Physical Sciences, University of Surrey, Guildford GU2 7XH, United Kingdom.

Dynamic DNA nanotechnology creates programmable reaction networks and nanodevices by using DNA strands. The key reaction in dynamic DNA nanotechnology is the exchange of DNA strands between different molecular species, achieved through three- and four-way strand exchange reactions. While both reactions have been widely used, the four-way exchange reaction has traditionally been slower and less efficient than the three-way reaction.

View Article and Find Full Text PDF