"Short pulses of epiretinal prostheses evoke network-mediated responses in retinal ganglion cells by stimulating presynaptic neurons"

Hyeonhee Roh, Yanjinsuren Otgondemberel, and Maesoon Im, Journal of Neural Engineering, Vol. 19, Art. No. 055006, (Impact Factor 5.043), Sep. 2022

"Ultrasound stimulation for non-invasive visual prostheses"

Jaya Dilip Badadhe, Hyeonhee Roh, Byung Chul Lee, Jae Hun Kim, and Maesoon Im, Frontiers in Cellular Neuroscience, Vol. 16, (Impact Factor 6.147), Aug.2022

"Artificial visual information produced by retinal prostheses"

Sein Kim, Hyeonhee Roh, and Maesoon Im, Frontiers in Cellular Neuroscience, Vol. 16, Art. No. 911754 (8pp), (*These authors contributed equally.) (Impact Factor 6.147), Jun. 2022

"Fabrication of High-Density Out-of-Plane Microneedle Arrays with Various Heights and Diverse Cross-Sectional Shapes"

Hyeonhee Roh*, Young Jun Yoon*, Jin Soo Park*, Dong-Hyun Kang*, Seung Min Kwak, Byung Chul Lee, and Maesoon Im, Nano-Micro Letters (NML), Vol. 14, Art. No. 24 (19pp), (*These authors contributed equally.) (Impact Factor 23.655, JCR Ranking 3.623%), Dec. 2021

"Spiking Characteristics of Network-Mediated Responses Arising in Direction-Selective Ganglion Cells of Rabbit and Mouse Retinas to Electric Stimulatio…"

Yanjinsuren Otgondemberel*, Hyeonhee Roh*, Shelley I. Fried, and Maesoon Im, IEEE Transactions on Neural Systems and Rehabilitation Engineering (TNSRE), Vol. 29, pp. 2445-2455, (*These authors contributed equally.) (JCR Ranking < 10%), Nov. 2021

"A 4.49 nW/pixel light-to-stimulus duration converter based retinal prosthesis chip"

Dong-Hwi Choi, Hyeonhee Roh, Maesoon Im, and Dong-Woo Jee, IEEE Transactions on Biomedical Circuits and Systems (TBioCAS), Dec. 2021

"Preclinical study to improve microbubble-mediated drug delivery in cancer using an ultrasonic probe with an interchangeable acoustic lens"

Seunghyun Lee, Hoyoon Joen, Shinyong Shim, Maesoon Im, Jinsik Kim, Jung Hoon Kim, Byung Chul Lee, Scientific Reports, Vol. 11, Art. no. 12654 (10pp), Jun. 2021

"Electric stimulation elicits heterogenous responses in ON but not OFF retinal ganglion cells to transmit rich neural information"

Joon Ho Kang, Ye Ji Jang, Taegon Kim, Byung Chul Lee, Soo Hyun Lee, and Maesoon Im, IEEE Transactions on Neural Systems and Rehabilitation Engineering (TNSRE), Vol. 29, pp. 300-309, Mar. 2021

"Fabrication of a glass micropipette device using reflow processes and its integration with microfluidic channels for patch clamp recording of cell"

Yoon-Jae Nam, Young Jun Yoon, Seung-ki Lee, Maesoon Im, and Jae-Hyoung Park, IEEE Sensors Journal, Vol. 20, No. 24, pp. 14694-14702, Dec. 2020

"Versatile low-cost volumetric 3D ultrasound imaging using gimbal-assisted distance sensors and an inertial measurement unit"

Taehyung Kim, Dong-Hyun Kang, Shinyong Shim, Maesoon Im, Bo Kyoung Seo, Hyungmin Kim, and Byung Chul Lee, Sensors, Vol. 20, No. 22, Art. no. 6613 (15pp), Nov. 2020

"Editorial for the special issue on micro/nanofabrication for retinal implants"

Maesoon Im, Micromachines, Vol. 11, No. 11, Art. no. 1005 (4pp), Nov. 2020

"Retinal degeneration reduces consistency of network-mediated responses arising in ganglion cells to electric stimulation"

Young Jun Yoon*, Jae-Ik Lee*, Ye Ji Jang, Seungki An, Jae Hun Kim, Shelley I. Fried, and Maesoon Im, IEEE Transactions on Neural Systems and Rehabilitation Engineering (TNSRE), Vol. 28, No. 9, pp. 1921-1930, Sep. 2020

"Neurophysiological and medical considerations for better-performing microelectronic retinal prostheses"

Maesoon Im and Seong-Woo Kim, Journal of Neural Engineering (JNE), Vol. 17, No. 3, Art. no. 033001 (9pp), May 2020

"Optimal electric stimulus amplitude improves the selectivity between responses of ON versus OFF types of retinal ganglion cells"

Jae-Ik Lee and Maesoon Im, IEEE Transactions on Neural Systems and Rehabilitation Engineering (TNSRE), Vol. 27, No. 10, pp. 2015-2024, Oct. 2019

"Non-rectangular waveforms are more charge-efficient than rectangular one in eliciting network-mediated responses of ON type retinal ganglion cells"

Jae-Ik Lee and Maesoon Im, Journal of Neural Engineering (JNE), Vol.15, No.5, Art. no. 055004 (17pp), This work shows non-standard (i.e., non-rectangular) pulse waveforms can maximize the efficacy of spiking responses of retinal neurons to electric stimulation., Aug. 2018