Hybrid SERS substrate based on cotton swab for sensitive detection of organic molecules oleh Hoang Duy Minh, Nguyen Duc Thang, Nguyen Thao Linh Chi, Luong Duc Anh, Le Ngoc Long, Tran Van Khai, Huynh Cong Khanh, Nguyen Dang Khoa, Tran Hoang Minh