Functionalized-AgNPs for Long-Term Stability and Its Applicability in the Detection of Manganese Ions oleh Van-Tuan Hoang, Mai Mai, Le Thi Tam, Ngoc Phan Vu, Nguyen Tien Khi, Phuong Dinh Tam, Tran Quang Huy, Anh-Tuan Le, Ngo Xuan Dinh, Vinh-Hoang Tran