title: Smartphone spectrometer for colorimetric biosensing.
abstract: We report on a smartphone spectrometer for colorimetric biosensing applications. The spectrometer relies on a sample cell with an integrated grating substrate, and the smartphone's built-in light-emitting diode flash and camera. The feasibility of the smartphone spectrometer is demonstrated for detection of glucose and human cardiac troponin I, the latter in conjunction with peptide-functionalized gold nanoparticles.
authors.affiliation: Centre for Biomimetic Sensor Science, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Drive, 637553 Singapore. bliedberg@ntu.edu.sg and Wenzhou Institute of Biomedical and Engineering, CNITECH, Chinese Academy of Sciences, Wenzhou, 325001, PR China.
authors.forename: Yi
authors.initials: Y
authors.lastname: Wang
authors.affiliation: Centre for Biomimetic Sensor Science, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Drive, 637553 Singapore. bliedberg@ntu.edu.sg.
authors.forename: Xiaohu
authors.initials: X
authors.lastname: Liu
authors.affiliation: Centre for Biomimetic Sensor Science, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Drive, 637553 Singapore. bliedberg@ntu.edu.sg.
authors.forename: Peng
authors.initials: P
authors.lastname: Chen
authors.affiliation: Centre for Biomimetic Sensor Science, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Drive, 637553 Singapore. bliedberg@ntu.edu.sg.
authors.forename: Nhung Thi
authors.initials: NT
authors.lastname: Tran
authors.affiliation: Centre for Biomimetic Sensor Science, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Drive, 637553 Singapore. bliedberg@ntu.edu.sg.
authors.forename: Jinling
authors.initials: J
authors.lastname: Zhang
authors.affiliation: Centre for Biomimetic Sensor Science, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Drive, 637553 Singapore. bliedberg@ntu.edu.sg.
authors.forename: Wei Sheng
authors.initials: WS
authors.lastname: Chia
authors.affiliation: Centre for Biomimetic Sensor Science, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Drive, 637553 Singapore. bliedberg@ntu.edu.sg and Sorbonne Universités, UPMC Univ Paris 6, UMR CNRS 7197, Laboratoire de Réactivité de Surface, F75005 Paris, France.
authors.forename: Souhir
authors.initials: S
authors.lastname: Boujday
authors.affiliation: Centre for Biomimetic Sensor Science, School of Materials Science and Engineering, Nanyang Technological University, 50 Nanyang Drive, 637553 Singapore. bliedberg@ntu.edu.sg.
authors.forename: Bo
authors.initials: B
authors.lastname: Liedberg
mesh_terms: D015374:Biosensing Techniques; D003124:Colorimetry / Q000295:instrumentation*; D005947:Glucose / Q000032:analysis; D006046:Gold; D006801:Humans; D053768:Metal Nanoparticles; D000068997:Smartphone; D013057:Spectrum Analysis; D019210:Troponin I / Q000032:analysis
chemical_list: D019210:Troponin I; D006046:Gold; D005947:Glucose