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| Open AccessEmpowering the on-site detection of nucleic acids by integrating CRISPR and digital signal processing
Developing rapid and affordable HPV tests is imperative for effective cervical cancer screening in resource-limited regions. Here, the authors demonstrate an advanced HPV diagnostic system that integrates CRISPR technology with digital signal processing.
- Chang Yeol Lee
- , Hyunho Kim
- & Hakho Lee
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| Open AccessThe CRISPR-Cas13a Gemini System for noncontiguous target RNA activation
CRISPR-Cas13a based methods currently use contiguous target RNA activation, which only enables single-target detection or editing. Here the authors propose a noncontiguous target RNA activation approach which can provide rapid, simultaneous and sensitive detection of two RNAs in a single readout, as well as parallel dual transgene knockdown.
- Hongrui Zhao
- , Yan Sheng
- & Jiaming Hu
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| Open AccessWireless, battery-free, multifunctional integrated bioelectronics for respiratory pathogens monitoring and severity evaluation
The SARS-CoV-2 pandemic highlighted our need for methods that allow rapid viral surveillance. Here, authors report a wireless, battery-free and wearable self-diagnosis platform that can continuously capture viral particles, diagnose infection status and evaluate symptom severity via breath and blow.
- Hu Li
- , Huarui Gong
- & Xinge Yu
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| Open AccessNear-infrared-II photoacoustic imaging and photo-triggered synergistic treatment of thrombosis via fibrin-specific homopolymer nanoparticles
The near-infrared-II (NIR-II) window has shown great promise for in vivo imaging and therapy. Here, the authors integrate a homopolymer and thermo-sensitive nitric oxide prodrug into nanoparticles for long-wavelength NIR-II photoacoustic imaging and synergistic treatment in preclinical thrombosis models.
- Jianwen Song
- , Xiaoying Kang
- & Ji Qi
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| Open AccessMultiplexed RNA profiling by regenerative catalysis enables blood-based subtyping of brain tumors
Current methods to subtype brain tumors rely on invasive biopsies. Here, the authors develop a digital platform to regeneratively convert and catalytically enhance signals from rare circulating RNAs for blood-based characterization of brain tumors.
- Yan Zhang
- , Chi Yan Wong
- & Huilin Shao
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Article
| Open AccessHigh-affinity peptides developed against calprotectin and their application as synthetic ligands in diagnostic assays
A peptide was developed that binds to calprotectin, a marker of major inflammatory disorders, and found to be suited for diagnostic tests. The use of synthetic peptides in assays is of great interest due to their high precision, robustness and low price.
- Cristina Díaz-Perlas
- , Benjamin Ricken
- & Christian Heinis
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Article
| Open AccessCRISPR-induced DNA reorganization for multiplexed nucleic acid detection
Nucleic acid sensing involving CRISPR technologies is powerful but has certain limitations, such as PAM sequence requirements and limited multiplexing. Here, authors report a CRISPR-based barcoding technology which enables multiple outputs from any target sequence, based on cis- and trans-cleavage.
- Margot Karlikow
- , Evan Amalfitano
- & Keith Pardee
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| Open AccessMolecular imaging of liver inflammation using an anti-VCAM-1 nanobody
Here, the authors present a noninvasive tool to detect liver inflammation using nuclear imaging, as an alternative to biopsy. The prove the diagnostic power of this tool to detect liver inflammation in preclinical models of chronic liver disease.
- Maxime Nachit
- , Christopher Montemagno
- & Pascale Perret
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Article
| Open AccessTheranostic barcoded nanoparticles for personalized cancer medicine
Determining the most effective treatment for each cancer patient is a key challenge in cancer therapy. In this article, the authors show, in a mouse model of breast cancer, that DNA barcoded nanoparticles can be used for pre-screening the efficacy of anticancer drugs.
- Zvi Yaari
- , Dana da Silva
- & Avi Schroeder
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Article
| Open AccessSensitive β-galactosidase-targeting fluorescence probe for visualizing small peritoneal metastatic tumours in vivo
Surgical removal of the metastases remains a life-extending approach to ovarian cancer, but the nodules are difficult to detect. Here the authors show that a new cell-permeable probe for β-galactosidase can sensitively and specifically detect peritoneal metastases in mouse models of ovarian cancer.
- Daisuke Asanuma
- , Masayo Sakabe
- & Yasuteru Urano
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Rapid in vivo detection of isoniazid-sensitive Mycobacterium tuberculosis by breath test
There is an urgent need for rapid point-of-care tools for tuberculosis diagnosis and antibiotic sensitivity analysis. Here, the authors describe a breath test that, within minutes, detects isoniazid-susceptible Mycobacterium tuberculosisin infected animals.
- Seong W. Choi
- , Mamoudou Maiga
- & Graham S. Timmins