Recent developments employing new materials for readout in lab-on-a-chip

2010 ◽  
Vol 20 (35) ◽  
pp. 7305 ◽  
Author(s):  
Yingyi Liu ◽  
Yi Sun ◽  
Kang Sun ◽  
Lusheng Song ◽  
Xingyu Jiang
Keyword(s):  
Lab On A Chip ◽  
New Materials ◽  
Recent Developments

scholarly journals State of the Art in Alcohol Sensing with 2D Materials

2020 ◽  
Vol 12 (1) ◽  
Author(s):  
Ramin Boroujerdi ◽  
Amor Abdelkader ◽  
Richard Paul
Keyword(s):  
State Of The Art ◽  
2D Materials ◽  
Chemical Species ◽  
Weight Ratio ◽  
Layered Compounds ◽  
Single Atom ◽  
Future Research ◽  
Essential Factor ◽  
New Materials ◽  
Recent Developments

AbstractSince the discovery of graphene, the star among new materials, there has been a surge of attention focused on the monatomic and monomolecular sheets which can be obtained by exfoliation of layered compounds. Such materials are known as two-dimensional (2D) materials and offer enormous versatility and potential. The ultimate single atom, or molecule, thickness of the 2D materials sheets provides the highest surface to weight ratio of all the nanomaterials, which opens the door to the design of more sensitive and reliable chemical sensors. The variety of properties and the possibility of tuning the chemical and surface properties of the 2D materials increase their potential as selective sensors, targeting chemical species that were previously difficult to detect. The planar structure and the mechanical flexibility of the sheets allow new sensor designs and put 2D materials at the forefront of all the candidates for wearable applications. When developing sensors for alcohol, the response time is an essential factor for many industrial and forensic applications, particularly when it comes to hand-held devices. Here, we review recent developments in the applications of 2D materials in sensing alcohols along with a study on parameters that affect the sensing capabilities. The review also discusses the strategies used to develop the sensor along with their mechanisms of sensing and provides a critique of the current limitations of 2D materials-based alcohol sensors and an outlook for the future research required to overcome the challenges.

Allergen screening bioassays: recent developments in lab-on-a-chip and lab-on-a-disc systems

Bioanalysis ◽  
2014 ◽  
Vol 6 (14) ◽  
pp. 2005-2018 ◽  
Author(s):  
Ho-pui Ho ◽  
Pui-man Lau ◽  
Ho-chin Kwok ◽  
Shu-yuen Wu ◽  
Minghui Gao ◽  
...  
Keyword(s):  
Lab On A Chip ◽  
Recent Developments

scholarly journals Vitreous Substitutes: Old and New Materials in Vitreoretinal Surgery

2017 ◽  
Vol 2017 ◽  
pp. 1-6 ◽  
Author(s):  
Camilla Alovisi ◽  
Claudio Panico ◽  
Ugo de Sanctis ◽  
Chiara M. Eandi
Keyword(s):  
Surgical Techniques ◽  
Vitreoretinal Surgery ◽  
Biochemical Properties ◽  
Clinical Use ◽  
New Materials ◽  
Advantages And Disadvantages ◽  
Look Ahead ◽  
Composition And Structure ◽  
Recent Developments ◽  
Vitreous Substitutes

Recent developments in vitreoretinal surgery have increased the need for suitable vitreous substitutes. A successful substitute should maintain all the physical and biochemical properties of the original vitreous, be easy to manipulate, and be long lasting. Substitutes can be gaseous or liquid, both of which have associated advantages and disadvantages related to their physical properties and use. Furthermore, new surgical techniques with smaller vitreoretinal instruments have driven the use of more viscous substitutes. In this review, we analyze and discuss the most frequently used vitreous substitutes and look ahead to future alternatives. We classify these compounds based on their composition and structure, discuss their clinical use with respect to their associated advantages and disadvantages, and analyze how new vitreoretinal surgical techniques have modified their use.

Photorefractive Polymers With High Speed

1999 ◽  
Vol 561 ◽  
Author(s):  
N. Peyghambarian ◽  
K. B. Ferrio ◽  
J. A. Herlocker ◽  
E. Hendrick ◽  
B. D. Guenther ◽  
...  
Keyword(s):  
Time Constant ◽  
High Speed ◽  
Response Rates ◽  
Rapid Progress ◽  
New Materials ◽  
Photorefractive Polymers ◽  
Recent Developments ◽  
Photorefractive Polymer ◽  
Grating Formation

ABSTRACTRapid progress in photorefractive polymers includes new materials with improved response rates. We briefly review recent developments in this rapidly evolving area and report grating formation with a 2-millisecond time-constant, the fastest reported to date in any photorefractive polymer.

Side Chain Polymers for Electro-Optic Applications

1991 ◽  
Vol 228 ◽  
Author(s):  
Ronald N. DeMartino ◽  
Diane E. Allen ◽  
Richard Keosian ◽  
Garo Khanarian ◽  
David R. Haas
Keyword(s):  
Mechanical Properties ◽  
Optical Activity ◽  
Molecular Basis ◽  
Molecular Design ◽  
Polymeric Materials ◽  
Side Chain ◽  
New Materials ◽  
Electro Optic ◽  
Recent Developments ◽  
Nlo Materials

ABSTRACTOrganic and polymeric materials have emerged in recent years as candidates for advanced device and systems applications. This interest has arisen from the promise of extraordinary optical, structural, and mechanical properties of certain organic materials, and from the fundamental success of molecular design performed to create new materials.Our approach to the problem is to develop an understanding of the molecular basis of non-linear optical activity, incorporate the most promising candidates into tractable polymers, and evaluate these materials in device format. This paper will review some of the recent developments in the NLO materials effort at Hoechst Celanese.

LASER SURFACE MODIFICATION OF TITANIUM ALLOYS — A REVIEW

2005 ◽  
Vol 12 (01) ◽  
pp. 123-130 ◽  
Author(s):  
Y. S. TIAN ◽  
C. Z. CHEN ◽  
D. Y. WANG ◽  
T. Q. LEI
Keyword(s):  
Surface Modification ◽  
Titanium Alloys ◽  
Processing Parameters ◽  
Laser Surface ◽  
Metallic Surface ◽  
New Materials ◽  
Laser Surface Modification ◽  
Ti Alloys ◽  
Recent Developments ◽  
Modification Of Titanium

Recent developments of laser surface modification of titanium alloys for increasing their corrosion, wear and oxidation resistance are introduced. The effects of laser processing parameters on the resulting surface properties of titanium alloys are reviewed. The problems to be solved and the prospects in the field of laser modification of Ti alloys are discussed. Due to the intrinsic properties, a laser beam can be focused onto the metallic surface to produce a broad range of treatments depending on the input energy. Thus, composite strengthening coatings can be fabricated by the methods of laser alloying, cladding, pulse laser deposition (PLD), etc., which are promising techniques of producing a layer of new materials on the surface of titanium alloys.

scholarly journals Recent Developments in Optical Detection Technologies in Lab-on-a-Chip Devices for Biosensing Applications

Sensors ◽  
2014 ◽  
Vol 14 (8) ◽  
pp. 15458-15479 ◽  
Author(s):  
Nuno Pires ◽  
Tao Dong ◽  
Ulrik Hanke ◽  
Nils Hoivik
Keyword(s):  
Optical Detection ◽  
Lab On A Chip ◽  
Recent Developments ◽  
Detection Technologies

Recent Developments in II-VI Diluted Magnetic Semiconductors

1989 ◽  
Vol 161 ◽  
Author(s):  
N. Samarth ◽  
J. K. Furdyna
Keyword(s):  
Molecular Beam Epitaxy ◽  
Molecular Beam ◽  
Diluted Magnetic Semiconductors ◽  
Magnetic Semiconductors ◽  
Transition Metal Ions ◽  
The Novel ◽  
New Materials ◽  
Zinc Blende ◽  
Recent Developments ◽  
Diluted Magnetic

ABSTRACTMuch of the work in diluted magnetic semiconductors (DMS) in past years has focused on the alloys such as Cd1−xMnxTe. Recently, there has been an increasing accent on DMS alloys containing the transition metal ions Fe2+ and Co2+. We review here the properties of these new materials and compare them with the alloys. We also examine the novel opportunities afforded by the molecular beam epitaxy of epilayers and heterostructures containing the “metastable” zinc-blende phase of Cd1−xMnxSe.

Materials for intraocular lenses (IOLs): Review of developments to achieve biocompatibility

e-Polymers ◽  
2009 ◽  
Vol 9 (1) ◽  
Author(s):  
D. Tripti ◽  
R.S. Haldar ◽  
S. Geetha ◽  
U.K. Niyogi ◽  
R.K. Khandal
Keyword(s):  
Development Process ◽  
State Of The Art ◽  
Intraocular Lenses ◽  
Biomedical Devices ◽  
New Materials ◽  
Recent Developments ◽  
Material Sciences ◽  
And Performance ◽  
Materials Used ◽  
The Cost

AbstractIt is true that the developments in material sciences along with the improvements in various aspects of technology involved in transforming materials into products, over the years, have been responsible for making many of the impossible-looking devices possible. It is also a fact that the demand for a new, improved and better material has never ended; in fact it has been increasing to a greater degree and with bigger dimensions than ever before, especially in recent times. As a matter of fact, for certain advanced applications, the need for efforts to have new materials can never be over emphasized; for example, in the area of biomedical devices such as intraocular lens (IOL). The advances in the field of bio-medical applications require the materials of high quality meeting stringent norms of performance. For implants such as the ones like IOL used for correction of vision of the eyes, besides the quality and performance of materials, biocompatibility is an issue of major concern. The material scientists have been working on the development of materials for IOLs targeting the needs arising out of the developing countries. The challenges include not only to bring down the cost of the materials used for IOLs but also to increase the biocompatibility of IOLs. For making the development process easy and bringing the state-of-the- art of knowledge to those looking for new materials, it is thought necessary to review various facets of IOLs in the present paper. Not only the aspects related to the recent developments in biomedical devices of eye care but also related to the properties of available materials vis a vis the deficiencies in properties of existing materials have been covered in this review. The aim has been to bring out the gap areas at various levels of process of product chain starting from the monomer to polymer, blank to IOL, insertion of IOL into eyes to life cycle of IOLs, mainly to provide certain possible and feasible leads to meet the challenges of making new and more biocompatible materials.

Sign in / Sign up

Export Citation Format

Share Document