Rapid detection of Ebola virus with a reagent-free, point-of-care biosensor.

Rapid detection of Ebola virus with a reagent-free, point-of-care biosensor.
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用无试剂,护理生物传感器快速检测埃博拉病毒。

DOI:
10.3390/s150408605
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发表时间:
2015-04-14
期刊:
Sensors (Basel, Switzerland)
影响因子:
--
通讯作者:
Larson RS
Larson RS
中科院分区:
其他
文献类型:
--
作者:
Baca JT;Severns V;Lovato D;Branch DW;Larson RS

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表面声波(SAW)传感器可以在护理点快速检测埃博拉抗原,而无需添加试剂、样品处理或专业人员。本初步研究表明SAW生物传感器检测埃博拉病毒具有浓度依赖性。该方法的检出限低于PCR在出现症状第一天检测到的病毒血症的平均水平。我们观察到高度碎片化的埃博拉病毒颗粒的对数线性传感器响应,病毒灭活前的检测限为1.9 × 104 PFU/mL。我们预测对完整的传染性埃博拉病毒的敏感性将大大提高。这种即时护理方法有可能在症状出现之前发现埃博拉病毒,极大地促进了感染控制和快速治疗。这种生物传感器平台由一次性AA电池供电,可以快速适应在恶劣条件下检测其他新出现的疾病。
Surface acoustic wave (SAW) sensors can rapidly detect Ebola antigens at the point-of-care without the need for added reagents, sample processing, or specialized personnel. This preliminary study demonstrates SAW biosensor detection of the Ebola virus in a concentration-dependent manner. The detection limit with this methodology is below the average level of viremia detected on the first day of symptoms by PCR. We observe a log-linear sensor response for highly fragmented Ebola viral particles, with a detection limit corresponding to 1.9 × 104 PFU/mL prior to virus inactivation. We predict greatly improved sensitivity for intact, infectious Ebola virus. This point-of-care methodology has the potential to detect Ebola viremia prior to symptom onset, greatly enabling infection control and rapid treatment. This biosensor platform is powered by disposable AA batteries and can be rapidly adapted to detect other emerging diseases in austere conditions.
DOI: 10.1056/nejmoa1411100
发表时间: 2014-10-16
期刊: The New England journal of medicine
影响因子: --
作者:
WHO Ebola Response Team;Aylward B;Barboza P;Bawo L;Bertherat E;Bilivogui P;Blake I;Brennan R;Briand S;Chakauya JM;Chitala K;Conteh RM;Cori A;Croisier A;Dangou JM;Diallo B;Donnelly CA;Dye C;Eckmanns T;Ferguson NM;Formenty P;Fuhrer C;Fukuda K;Garske T;Gasasira A;Gbanyan S;Graaff P;Heleze E;Jambai A;Jombart T;Kasolo F;Kadiobo AM;Keita S;Kertesz D;Koné M;Lane C;Markoff J;Massaquoi M;Mills H;Mulba JM;Musa E;Myhre J;Nasidi A;Nilles E;Nouvellet P;Nshimirimana D;Nuttall I;Nyenswah T;Olu O;Pendergast S;Perea W;Polonsky J;Riley S;Ronveaux O;Sakoba K;Santhana Gopala Krishnan R;Senga M;Shuaib F;Van Kerkhove MD;Vaz R;Wijekoon Kannangarage N;Yoti Z
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