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| 1 | Keratin-Based materials for biomedical applications显示文摘Keratin constitutes the major component of the feather,hair,hooves,horns,and wool represents a group of biological material having high cysteine content(7–13%)as compared to other structural proteins.Keratin-based biomaterials have been investigated extensively over the past few decades due to their intrinsic biological properties and excellent biocompatibility.Unlike other natural polymers such as starch,collagen,chitosan,the complex three-dimensional structure of keratin requires the use of harsh chemical conditions for their dissolution and extraction.The most commonly used methods for keratin extraction are oxidation,reduction,steam explosion,microbial method,microwave irradiation and use of ionic liquids.Keratin-based materials have been used extensively for various biomedical applications such as drug delivery,wound healing,tissue engineering.This review covers the structure,properties,history of keratin research,methods of extraction and some recent advancements related to the use of keratin derived biomaterials in the form of a 3-D scaffold,films,fibers,and hydrogels. | Sandleen Feroz Nawshad Muhammad Jithendra Ratnayake George Dias | 2020 | Bioactive Materials2020，5，3： | 13 |
| 2 | A study of the correlation between dengue and weather in Kandy City, Sri Lanka (2003 -2012) and lessons learned显示文摘Background:Weather variables affect dengue transmission.This study aimed to identify a dengue weather correlation pattern in Kandy,Sri Lanka,compare the results with results of similar studies,and establish ways for better control and prevention of dengue.Method:We collected data on reported dengue cases in Kandy and mid-year population data from 2003 to 2012,and calculated weekly incidences.We obtained daily weather data from two weather stations and converted it into weekly data.We studied correlation patterns between dengue incidence and weather variables using the wavelet time series analysis,and then calculated cross-correlation coefficients to find magnitudes of correlations.Results:We found a positive correlation between dengue incidence and rainfall in millimeters,the number of rainy and wet days,the minimum temperature,and the night and daytime,as well as average,humidity,mostly with a five-to seven-week lag.Additionally,we found correlations between dengue incidence and maximum and average temperatures,hours of sunshine,and wind,with longer lag periods.Dengue incidences showed a negative correlation with wind run.Conclusion:Our results showed that rainfall,temperature,humidity,hours of sunshine,and wind are correlated with local dengue incidence.We have suggested ways to improve dengue management routines and to control it in these times of global warming.We also noticed that the results of dengue weather correlation studies can vary depending on the data analysis. | N D B Ehelepola Kusalika Ariyaratne W M N P Buddhadasa Sunil Ratnayake Malani Wickramasinghe | 2015 | Infectious Diseases of Poverty2015，4，1： | 2 |
| 3 | A new insight into the gelatinization process of native starches显示文摘 | Wajira S Ratnayake David S Jackson | 2007 | Carbohydrate Polymers2007，67，： | 1 |
| 4 | Suicidal behaviour on subway systems: A review of the epidemiology 显示文摘 | Ruwan Ratnayake Paul S Links | 2007 | Journal of Urban Health: Bulletin of the New York Academy of Medicine2007，84，6： | 1 |
| 5 | An incident of elevated levels of unsaturated free fatty acids in mussels from Nova Scotia and their toxic effect in mice after intraperitoneal injection 显示文摘 | Lawrence J F Chadha R K Ratnayake W M N | 1994 | Nat Toxins1994，2，31： | 1 |
| 6 | Nutritional composition of raw and smoked Atlantic mackerel (Scomber scombrus):oil and water-soluble vitamins显示文摘 | AMINULLAH BHUIVAN A K M RATNAYAKE W M N ACKMAN R G | 1993 | Journal of Food Composition and Analysis1993，6，： | 1 |
| 7 | Starch characteristics of black bean, chick pea, lentil, navy bean and pinto bean cultivars grown in Canada显示文摘 | Hoover R Ratnayake W S | 2002 | Food Chemistry2002，78，4： | 1 |
| 8 | Tourism and its implications for management in Ruhuna National Park (Yala), Sri Lanka 显示文摘 | Buultjens J Ratnayake I Gnanapala A | 2005 | Tourism Management2005，26，： | 1 |
| 9 | Nomofungin: a new microfilament disrupting agent显示文摘 | Ratnayake A S Yoshida W Y Mooberry S L | 2001 | J Org Chem2001，66，26： | 1 |
| 10 | Control of an outbreak of diarrhoea in a vascular surgery unit caused by a high-level clindamycin-resistant Clostridium difficile PCR ribotype 106显示文摘 | Ratnayake L McEwen J Henderson N | 2011 | J Hosp lnfect2011，79，3： | 1 |
| 11 | Nomofungin:anew microfilament disrupting agent 显示文摘 | Ratnayake AS Yoshida WY Mooberry SL | 2001 | Eur J Org Chem2001，66，26： | 1 |
| 12 | Oleosin genes in maize kernels having diverse oil contents are constitutively expressed independent of oil contents 显示文摘 | TING J T LEE K RATNAYAKE C | 1996 | Planta1996，199，： | 1 |
| 13 | Pea starch:composi- tion,structure and properties:a review显示文摘 | Ratnayake W S Hoover R Warkentin T | 2002 | Starch/Starke2002，，54： | 1 |
| 14 | A new insight into thee phase transition processes of food starches 显示文摘 | R M Wajira Srinanda Ratnayake | 2006 | the Degree of Doctor of Philosophy in Food Science and Technology at the University of Nebraska2006，，： | 1 |
| 15 | Antimicrobial Alkaloids Form Zanthoxylum Tetraspermun and Caudatum显示文摘 | Ajith PK Nissanka Veranja karunaratne Ratnayake BM | 2001 | Phytochem2001，56，： | 1 |
| 16 | Overview of Methods for the Determination of Trans Fatty Acids by Gas chromatography,Silver-ion Thin-layer Chromatography,Silver-ion Liquid Chromatography,and Gas Chromatography/mass Spectrometry显示文摘 | RATNAYAKE W M | 2004 | J AOACInt2004，87，： | 1 |
| 17 | Quality of life of stoma patients:temporary ileostomy versus colostomy 显示文摘 | Silva MA Ratnayake G Deen KI | 2003 | World J Surg2003，27，4： | 1 |
| 18 | Pea starch : compo- sition, structure and properties : a review 显示文摘 | Ratnayake W S Hoover R Warkentin T | 2002 | Starch/Starke2002，54，： | 1 |
| 19 | Starch characteristics of black bean, chick pea, lentil, navy bean and pinto bean cultiVars grown in Canada显示文摘 | Hoover R Ratnayake W S | 2002 | Food Chemistry2002，78，4： | 1 |
| 20 | Tourism andits implications for management in Ruhuna National Park (Yala),Sri Lanka显示文摘 | Buultjens J Ratnayake I Gnanapala A Aslam M | 2005 | Tourism Management2005，26，： | 1 |
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