Synthetic molecular recognition nanosensor paint for microalbuminuria.

Abstract:

:Microalbuminuria is an important clinical marker of several cardiovascular, metabolic, and other diseases such as diabetes, hypertension, atherosclerosis, and cancer. The accurate detection of microalbuminuria relies on albumin quantification in the urine, usually via an immunoturbidity assay; however, like many antibody-based assessments, this method may not be robust enough to function in global health applications, point-of-care assays, or wearable devices. Here, we develop an antibody-free approach using synthetic molecular recognition by constructing a polymer to mimic fatty acid binding to the albumin, informed by the albumin crystal structure. A single-walled carbon nanotube, encapsulated by the polymer, as the transduction element produces a hypsochromic (blue) shift in photoluminescence upon the binding of albumin in clinical urine samples. This complex, incorporated into an acrylic material, results in a nanosensor paint that enables the detection of microalbuminuria in patient samples and comprises a rapid point-of-care sensor robust enough to be deployed in resource-limited settings.

journal_name

Nat Commun

journal_title

Nature communications

authors

Budhathoki-Uprety J,Shah J,Korsen JA,Wayne AE,Galassi TV,Cohen JR,Harvey JD,Jena PV,Ramanathan LV,Jaimes EA,Heller DA

doi

10.1038/s41467-019-11583-1

subject

Has Abstract

pub_date

2019-08-09 00:00:00

pages

3605

issue

1

issn

2041-1723

pii

10.1038/s41467-019-11583-1

journal_volume

10

pub_type

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