Yong Rae Chae, Yeo Joon Yoon, Keun Garp Ryu "Development of Modified Stokes Expression to Model the Behavior of Expanded Beds Containing Polydisperse Resins for Protein Adsorption" The Korean J. Chemical Engineering, 2004 Sep, 21(5), 999-1002.

Young-Rae Chae, Yeo Joon Yoon, Keungarp Ryu, "Application of Modified Stokes Expression to Model the Behavior of Expanded Beds with Feed Streams Containing E. coli Homogenates" Biotechnology and Bioprocess Engineering, 2004 Jul/Aug, 9, 323-32522

Bong Gyun Kim, Sang Kil Lee, Kwangkyoung Liou, Jae Kyung Sohng, Yeo Joon Yoon, and Hei Chan Lee "Optimization of the Expression of Streptomyces Venezuelae Cytochrome P450 Hydroxylase (PikC) in Escherichia coli" Journal of Industrial and Engineering Chemistry, 2004 Sep, 10,759-765.

Ji Young Kwon, Jeong Hyun Soh, Yeo Joon Yoon, and Juyoung Yoon, "Highly Effective Fluorescent Sensor For Hg2+ in Aqueous Solution" Supramolecular Chemistry 2004,16(8), 621-624.

Sook Kyung Kim, Bong Gu Kang, Hwa Soo Koh, Yeo Joon Yoon, Sang J. Jung, Byungmun Jeong, Kap-Duk Lee, and Juyoung. Yoon, "A New Imidazolium Cavitand for the Recognition of Dicarboxylates." Organic letters 2004 Dec,6(25), 4655-4658.

Chang Young Kim, Hyun Joo Park, Yeo Joon Yoon, Han Young Kang, and Eung Soo Kimg, "Stimulation of Actinorhodin Production by Streptomyces lividans with a Chromosomally-Integrated antibiotic Regulatory Gene afsR2" Journal of Microbiology and Biotechnology, 2004 Dec, 14(5), 1089-1092 

Sang Kil Lee, Devi Bahadur Basnet, Cha Yong Choi, Jae Kyung Sohng, Jong Seog Ahn and Yeo Joon Yoon "The Role of Erythromycin C-12 Hydroxylase, EryK, as a Substitute for PikC Hydroxylase in Pikromycin Biosynthesis" Bioorganic Chemistry, 2004 Nov, 32(6), 549-559.

Taek Jin Kang, Hui Kyoung Song, Jin Ho Ahn, Tae Wan Kim, Yeo Joon Yoon, and Cha Yong Choi, "Enhanced immunodetection of cell-free synthesized erythropoietin under denaturing conditions" Biotechnology Letters 2004 Apr, 26(8), 641-644.

Jay Sung Joong Hong, Sung Hee Park, Cha Yong Choi, Jae Kyung Sohng , Yeo Joon Yoon, "New olivosyl derivatives of methymycin/pikromycin from an engineered strain of Streptomyces venezuelae" FEMS Microbiology Letters, 2004 Sep, 238(2),391-399.

Sang Kil Lee,Cha Yong Choi, Jong Seog Ahn, Jae Yong Cho, Cheon Seok Park,Yeo Joon Yoon "Identification of tailoring genes involved in the modification of the polyketide backbone of rifamycin B by Amycolatopsis mediterranei S699." Journal of Microbiology and Biotechnology, 2004 Apr, 14 (2), 356-362.