Chemical genetics, a new interdiscipline emerging at the nineties of the 20th century, is an approach for studying biological systems by using bioactive small molecules which can interact with their target proteins, and is complement of classic genetics approaches in term of methodology. The history of chemical genetics can be dated back to a few centuries ago and it still plays important role in the target identification of drug discovery.
This paper introduces the preliminary achievements in construction of the curriculum system based on the multi-disciplinary mode and the teaching practice for top-notch chemistry-majored students at Nanjing University. This curriculum system provides systematic impartment of the basic knowledge of mathematics, physics, chemistry and biology, strengthens the core courses of chemistry, and devotes attention to the international exchange and teach- ing to arm the students with better ability in chemistry as well as multi-disciplinary researches.
The new curriculum reform of basic education has brought some thoughts on university chemistry teaching. The obtained inspiration is discussed here in order to promote training high-quality talents in normal universities, including the necessary knowledge and ability for chemical education majored students, innovation on the idea of teaching methods, construction of inquiry-teaching and teacher-student interactions in classroom teaching, as well as the multiplicity of evaluation system.
In the teaching process of "Applied Inorganic Chemistry" course, we explored the case through course (CC) teaching method to improve the practical application ability and the scientific research innovation poten- tial of students. The teaching model has played a positive role for the professional personnel development. It provides reference for exploration of new professional teaching modes as well as the teaching effect improvement.
In this paper, the practice and exploration of the cooperative learning in teaching are presented.
The introduction of scientific frontiers and hot research areas into the class teaching of organic chemistry can not only widen students'range of knowledge, but also stimulate their interests in studying organic chemistry. Herein, several examples for combining scientific research achievements and teaching process were demonstrated.
In this paper, the history, structure, symmetry and properties of quasicrystal were introduced, as well as the crystal structure and symmetry of Mg32(Al,Zn)49. Also, the preparation of nano particles of quasicrystal and their application were discussed.
In this paper, matrix-assisted laser desorption/ionization time-of-flight mass spectrometry(MALDI- TOF MS) was used for measuring the relative molecular mass of polypeptides, and the matrixes, solvents, and adding cationic reagents were investigated for optimized determinations.
BrO3--SO32--Fe(CN)64-(BSF) is a typical pH oscillating system with the large amplitude. The ampli- tude and period of this oscillation are adjustable. And this oscillation can be combined with pH sensitive materials in order to carry out to facilitate the transformation of other oscillation behaviors with the pH stimulation. Compare with the traditional B-Z oscillation in physical chemistry experiment, this pH oscillation based experiment can be expanded for comprehensive or research-oriented experiment, which is helpful for the comprehensive ability and the innovation ability training.
The difference between ΔG and ΔrGm as direction criteria was briefly described. The ΔG criterion is applicable to the isothermal and isobaric processes of the closed system; however, the ΔrGm criterion is the further deduction of application of the ΔG criterion in chemical reaction system and represents the potential function of the reaction system at a certain time. ΔrGm as the direction criteria requires only W'= 0 instead of the isothermal and isobaric conditions.
This article studied the electromotive force and free energy change of the reaction that copper is trans- formed into cupric subcarbonate under different pH, humidity, and water states. The size of the pH value has no effect on spontaneity in the acidic pH; when atmospheric carbon dioxide reaches the saturation value and air humidity increases, the spontaneity of reaction increases slightly; when water changes from gaseous into liquid under the same conditions, the spontaneity of reaction increases.
We elaborated the necessity of introducing the osmotic coefficient of solvent, and discussed two kinds of osmotic coefficients and the correlation.
Smart solutions for the edge-sharing octahedrals, such as projection and numbering methods, are introduced based on Problem 6 of the 1992 final-round National Chemistry Contest for high school students.
The problems in the Preliminary Test of The 29th Chinese Chemistry Olympiad were resolved. The problem-solving techniques and calculations were developed, and the background and bibliography involved were provided.