Search

Your search keyword '"M.D. Figueroa-Pizano"' showing total 5 results
Start Over Author "M.D. Figueroa-Pizano"
5 results on '"M.D. Figueroa-Pizano"'

2. List of contributors

Author

Ahmed S. Abo Dena, Caleb Acquah, Tanvir Ahmed, Azilah Ajit, Yahya S. Al-Awthan, Tânia Albuquerque, Sukumaran Anil, Nuvia Marina Apolonio–Hernandez, Leonard Ionut Atanase, Omar Bahattab, Anindita Behera, Muhammad Bilal, Branko Bugarski, A.C. Campa-Mada, Ireri Alejandra Carbajal-Valenzuela, E. Carvajal-Millan, Long Chen, Wai Teng Cheng, Custodiana A. Colmenarez Lobo, Diana Costa, Eduardo Costa, Pandurang Appana Dalavi, Michael K. Danquah, Y. De Anda-Flores, Harshal Deshmukh, Amal Kumar Dhara, Ibrahim M. El-Sherbiny, Rúben Faria, Ana Angelica Feregrino-Pérez, M.D. Figueroa-Pizano, D.A.S. Gamage, Beatriz González-Arias, Natanamurugaraj Govindan, Ramón Gerardo Guevara-González, Diana Vanesa Gutierrez-Chavez, Md Saquib Hasnain, Shafiul Hossain, Muhammad Imran, Hafiz M.N. Iqbal, Jaison Jeevanandam, Alejandra Jimenez-Hernandez, Zhengyu Jin, Sumaya F. Kabir, Krishnan Kanny, Jaya Lakkakula, J. Lizardi-Mendoza, Manuela Machado, T. Madhujith, Gaanty Pragas Maniam, Verónica E. Manzano, A.L. Martínez-López, K.G. Martínez-Robinson, David Julian McClements, Ming Miao, Milan Milivojevic, Md. Minhajul Islam, Aurelie Sarah Mok Tsze Chung, Mohammad S. Mubarak, Naveed Muhammad, Hira Munir, Sesha Subramanian Murugan, Amit Kumar Nayak, Ana R. Neves, Ahmed Olatunde, Ivana Pajic-Lijakovic, Dilipkumar Pal, Aristeidis Papagiannopoulos, Manuela Pintado, Marcel Popa, Sarmad Ahmad Qamar, Telma Quintela, Stefania Racovita, Hamza Rafeeq, Mohd Hasbi Ab. Rahim, Ashiqur Rahman, Mohammed Mizanur Rahman, Khushboo Raj, Ajay Vasudeo Rane, A. Rascón-Chu, Abdur Rauf, Evangelina Repetto, Enrique Rico-García, Supriyo Saha, Md. Sazedul Islam, Md. Shahruzzaman, Sara Silva, Ângela Sousa, Ahmad Ziad Sulaiman, Sabrina Sultana, Joash Ban Lee Tan, J. Tanori-Cordova, Yong Kiat Teo, Himja Tiwari, Irineo torres-Pacheco, Tabussam Tufail, Silvia Vasiliu, Jayachandran Venkatesan, Eleni Vlassi, Nilesh Shirish Wagh, N.E. Wedamulla, Deepti Yadav, and Zhongyu Yang

Published
2022
Full Text
View/download PDF

4. List of contributors

Author

M.S.A. Abdel-Mottaleb, Sara Aboulaghras, Abdul Ahad, Naseem Akhtar, Fahad I. Al-Jenoobi, Abdullah M. Al-Mohizea, Tejraj M. Aminabhavi, Rahat Andleeb, Mohammed Tahir Ansari, Mohd. Aqil, Kholoud K. Arafa, Asma Ashraf, Akmal M. Asrorov, Leonard I. Atanase, Mohamed S. Attia, Suzana Aulic, Hüsniye Hande Aydın, A.K. Bajpai, Jaya Bajpai, Abdelaali Balahbib, Sritoma Banerjee, Aalok Basu, Luciano Benedini, Kanchan Bharti, Abdelhakim Bouyahya, Amir Bzainia, E. Carvajal-Millan, Mário Rui P.F.N. Costa, Michael K. Danquah, Biswarup Das, Rolando C.S. Dias, Nasreddine El Omari, Ibrahim M. El-Sherbiny, M.D. Figueroa-Pizano, Catarina P. Gomes, Hazal Ezgi Gültekin, Dipak Kumar Gupta, Md Saquib Hasnain, Miray İlhan, Sanjay K. Jain, Jaison Jeevanandam, Abhishek Jha, Deviga Kaliyappan, Shaimaa A. Khalid, Abdullah Khan, Manish Kumar, Erik Laurini, Swati Mahobia, Subrata Mallick, Domenico Marson, Carlos Martins-Gomes, Aliza Mazhar, Maryam Mazhar, Paula Messina, Brahmeshwar Mishra, Shashi Kiran Misra, Ekram H. Mohamed, Saima Muzammil, Amit Kumar Nayak, Sharadwata Pan, Kamla Pathak, Sabrina Pricl, Sarjana Raikwar, Seda Rençber, João Rodrigues, Rajesh Kumar Saini, Farheen Sami, Kalyan Kumar Sen, Mirza Imran Shehzad, Amélia M. Silva, Eliana B. Souto, Dipti Srivastava, Vladimir P. Torchilin, Wai Hau Tung, Ayesha Waheed, Derya Karataş Yeni, Nimrah Zafar, and Zeynep Şenyiğit

Published
2022
Full Text
View/download PDF

5. Effect of freeze-thawing conditions for preparation of chitosan-poly (vinyl alcohol) hydrogels and drug release studies

Author

María Elisa Martínez-Barbosa, F.J. Peñas, M.D. Figueroa-Pizano, A.D. Maldonado-Arce, Itziar Vélaz, A. Rosas-Durazo, and Paul Zavala-Rivera

Subjects
Vinyl alcohol, Molecular diffusion, Morphology (linguistics), Polymers and Plastics, Organic Chemistry, technology, industry, and agriculture, Diflunisal, macromolecular substances, 02 engineering and technology, 010402 general chemistry, 021001 nanoscience & nanotechnology, 01 natural sciences, 0104 chemical sciences, Chitosan, chemistry.chemical_compound, chemistry, Chemical engineering, Self-healing hydrogels, Materials Chemistry, medicine, Swelling, medicine.symptom, 0210 nano-technology, Porosity, medicine.drug
Abstract

The freezing-thawing is an advantageous method to produce hydrogels without crosslinking agents. In this study chitosan-poly(vinyl alcohol) (CS-PVA) hydrogels were prepared by varying the freezing conditions and composition, which affect the final characteristics of the products. The swelling degree, morphology, porosity, and diflunisal drug loading, as well as the drug release profiles were evaluated. The hydrogel swelling ratio was found to be mainly affected by the CS content, the number of freezing cycles and the temperature. SEM micrographs and porosity data confirm that pore size increases with the chitosan content. However, the use of either lower temperatures or longer freezing times, results in higher porosity and smaller pores. The drug release times of the CS-PVA hydrogels were as long as 30 h, and according to the mathematical fitting, a simple diffusion mechanism dominates the process. Moreover, a mathematical model predicting the hydrogels physical and structural behavior is proposed.

Published
2018
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results