title: Starch-Based Biological Microlasers.
abstract: Microlasers with good biocompatibility are of great significance to the detection of tiny changes in biological systems. Most current biolasers were realized through the introduction of biomaterials into various external resonators, resulting in an increase of difficulties in application. Here, we used starch as the host to build dye@starch microlasers by encapsulating guest organic laser dye into the interhelical structure of starch granules. The as-prepared dye@starch system with high transparency and ultrasmooth spherical surface functions as an efficient whispering gallery mode resonator for low threshold lasing. The obtained laser signal is closely related to the structural transformation of the starch matrix. Our results would provide a deep insight into the relationship between biostructure and lasing properties, facilitating the monitoring of the structural variances in biological processes through lasing signals.
authors.affiliation: CAS Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.|University of Chinese Academy of Sciences , Beijing 100049, China.
authors.forename: Yanhui
authors.initials: Y
authors.lastname: Wei
authors.affiliation: CAS Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.|University of Chinese Academy of Sciences , Beijing 100049, China.
authors.forename: Xianqing
authors.initials: X
authors.lastname: Lin
authors.affiliation: CAS Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.|University of Chinese Academy of Sciences , Beijing 100049, China.
authors.forename: Cong
authors.initials: C
authors.lastname: Wei
authors.affiliation: CAS Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.|University of Chinese Academy of Sciences , Beijing 100049, China.
authors.forename: Wei
authors.initials: W
authors.lastname: Zhang
authors.affiliation: CAS Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.|University of Chinese Academy of Sciences , Beijing 100049, China.
authors.forename: Yongli
authors.initials: Y
authors.lastname: Yan
authors.affiliation: CAS Key Laboratory of Photochemistry, Institute of Chemistry, Chinese Academy of Sciences , Beijing 100190, China.|University of Chinese Academy of Sciences , Beijing 100049, China.
authors.forename: Yong Sheng
authors.identifier: 0000-0002-4329-0103
authors.initials: YS
authors.lastname: Zhao
mesh_terms: D004396:Coloring Agents / Q000737:chemistry*; D007834:Lasers; D061848:Optical Imaging; D010316:Particle Size; D011198:Solanum tuberosum / Q000737:chemistry; D013050:Spectrometry, Fluorescence; D013213:Starch / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D004396:Coloring Agents; D013213:Starch
keywords: bio-nanophotonics; biological composite material; organic laser; organic nanophotonic material; starch laser