The inferences obtained from a brief investigation on the lasing characteristics of near infrared hemicyanine laser dye LDS 821 in different bio-nanotemplates are reported here. Solution state lasing behavior of LDS 821 in deoxyribonucleic acid (DNA) - surfactant complex and in lysozyme amyloid fibrils are studied. Equally spaced well resolved resonant modes are observed for LDS 821 dye in DNA-surfactant complex at a very low pump power as compared to dye alone sample under similar conditions. The lasing threshold of the dye could be further decreased on incorporation with lysozyme amyloid fibrils. The lasing spectrums of the dye in lysozyme amyloid fibrils at different pump powers are irregular in shape due to random lasing. Studies show that DNA-CTMA and lysozyme amyloid fibrils can be used as a potential bio-nanotemplate for the fabrication of biolasers.

通过对不同生物纳米模板中近红外半菁激光染料LDS 821的激光发射特性的简要研究得出的推论已在此处报道。研究了LDS 821在脱氧核糖核酸（DNA）-表面活性剂复合物和溶菌酶淀粉样原纤维中的溶液状态激光行为。与在类似条件下的单独染料样品相比，在非常低的泵浦功率下，在DNA表面活性剂复合物中的LDS 821染料观察到等距的分辨良好的共振模式。掺入溶菌酶淀粉样原纤维后，染料的激射阈值可进一步降低。由于随机激光，在不同泵浦功率下溶菌酶淀粉样纤维中染料的激光光谱形状不规则。