Amplification-free detection of SARS-CoV-2 with CRISPR-Cas13a and mobile phone microscopy.
Amplification-free detection of SARS-CoV-2 with CRISPR-Cas13a and mobile phone microscopy.
复制标题
DOI:
10.1016/j.cell.2020.12.001
复制
发表时间:
2021-01-21
期刊:
影响因子:
64.5
通讯作者:
Ott M
中科院分区:
文献类型:
--
作者:
Fozouni P;Son S;Díaz de León Derby M;Knott GJ;Gray CN;D'Ambrosio MV;Zhao C;Switz NA;Kumar GR;Stephens SI;Boehm D;Tsou CL;Shu J;Bhuiya A;Armstrong M;Harris AR;Chen PY;Osterloh JM;Meyer-Franke A;Joehnk B;Walcott K;Sil A;Langelier C;Pollard KS;Crawford ED;Puschnik AS;Phelps M;Kistler A;DeRisi JL;Doudna JA;Fletcher DA;Ott M
The December 2019 outbreak of a novel respiratory virus, SARS-CoV-2, has become an ongoing global pandemic due in part to the challenge of identifying symptomatic, asymptomatic, and pre-symptomatic carriers of the virus. CRISPR diagnostics can augment gold-standard PCR-based testing if they can be made rapid, portable, and accurate. Here, we report the development of an amplification-free CRISPR-Cas13a assay for direct detection of SARS-CoV-2 from nasal swab RNA that can be read with a mobile phone microscope. The assay achieved ∼100 copies/μL sensitivity in under 30 min of measurement time and accurately detected pre-extracted RNA from a set of positive clinical samples in under 5 min. We combined crRNAs targeting SARS-CoV-2 RNA to improve sensitivity and specificity and directly quantified viral load using enzyme kinetics. Integrated with a reader device based on a mobile phone, this assay has the potential to enable rapid, low-cost, point-of-care screening for SARS-CoV-2. Fozouni et al. devise a way to use CRISPR-Cas13a to detect and quantify SARS-CoV-2 RNA from patient samples without the need for a pre-amplification step. They then show how the assay’s signal can be efficiently detected with a portable, mobile phone-based device.
登录
查看更多内容
影响因子:
64.8
作者:
East-Seletsky A;O'Connell MR;Knight SC;Burstein D;Cate JH;Tjian R;Doudna JA
通讯作者:
Doudna JA
DOI:
10.1126/science.aaf5573
发表时间:
2016-08-05
期刊:
Science (New York, N.Y.)
影响因子:
--
作者:
Abudayyeh OO;Gootenberg JS;Konermann S;Joung J;Slaymaker IM;Cox DB;Shmakov S;Makarova KS;Semenova E;Minakhin L;Severinov K;Regev A;Lander ES;Koonin EV;Zhang F
通讯作者:
Zhang F
影响因子:
12.6
作者:
Angus SV;Cho S;Harshman DK;Song JY;Yoon JY
通讯作者:
Yoon JY
影响因子:
6.7
作者:
Hou, Tieying;Zeng, Weiqi;Xu, Teng
通讯作者:
Xu, Teng
影响因子:
64.8
作者:
Abudayyeh OO;Gootenberg JS;Essletzbichler P;Han S;Joung J;Belanto JJ;Verdine V;Cox DBT;Kellner MJ;Regev A;Lander ES;Voytas DF;Ting AY;Zhang F
通讯作者:
Zhang F