1. Key Laboratory of Textile Science and Technology Ministry of Education College of Textiles Donghua University Shanghai 201620 China
2. Department of Urology Ninth People's Hospital School of Medicine Shanghai Jiaotong University Shanghai 200011 China
3. Fiber and Polymer Science University of California Davis CA 95616 USA
4. School of Textile and Clothing Nantong University Nantong 226019 China