4.8 Article

In Situ Sampling and Monitoring Cell-Free DNA of the Epstein-Barr Virus from Dermal Interstitial Fluid Using Wearable Microneedle Patches

期刊

ACS APPLIED MATERIALS & INTERFACES
卷 11, 期 42, 页码 38448-38458

出版社

AMER CHEMICAL SOC
DOI: 10.1021/acsami.9b12244

关键词

cell-free DNA; Epstein-Barr virus; flexible microfluidics; microneedle patch; wearable device

资金

  1. National Natural Science Foundation of China [21974028, 21427806]
  2. National Key RAMP
  3. D Program of China [2017YFA0205100]
  4. Introduce Talents of Fudan University [JIH1615032]
  5. Shanghai Leading Academic Discipline Project [B109]
  6. Shanghai Innovation Action Programme [19441903900]

向作者/读者索取更多资源

Using polymerase chain reaction and genotyping, Epstein-Barr virus cell-free DNA (EBV Cf DNA) was detectable in interstitial fluid (ISF). Microneedles offer a minimally invasive approach to capture such Cf DNA. However, a key challenge of microneedles lies in the ability to specifically isolate biomarkers within a short time. We introduced a hydrogel microneedle patch for rapid and easy capture of EBV Cf DNA from ISF in situ around 15 min, with a maximum capture efficiency of 93.6%. Then, quantification of EBV Cf DNA was achieved by electrochemical recombinase polymerase amplification wearable flexible micro-fluidics, with a detection limit of 3.7 x 10(2) copies/mu L. Animal tests supported the performance of microneedles for EBV Cf DNA capture. Collectively, these data showed that the microneedle patch may have broad implications for patients with Cf DNA-related disease and cancer metastasis in minimally invasive manners.

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