5641
Here we will introduce recent advances and new horizons in this area , and focus on the rising progress on NIR photothermal therapy for cancer and Alzheimer ' s disease ( AD ) , human telomerase detection , stem cell proliferation and differentiation on graphene substrate , diagnosis of cancer cell and related biomarkers , drug / nucleotide / peptide delivery and cell imaging , which have not been comprehensively reviewed .
 Chemical: graphene; Chemical: nucleotide
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: Chemical 
Text: {0} 
Answer:
 Chemical: graphene; Chemical: nucleotide